AU592469B2

AU592469B2 – Television transmission system
– Google Patents

AU592469B2 – Television transmission system
– Google Patents
Television transmission system

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Publication number
AU592469B2

AU592469B2
AU79261/87A
AU7926187A
AU592469B2
AU 592469 B2
AU592469 B2
AU 592469B2
AU 79261/87 A
AU79261/87 A
AU 79261/87A
AU 7926187 A
AU7926187 A
AU 7926187A
AU 592469 B2
AU592469 B2
AU 592469B2
Authority
AU
Australia
Prior art keywords
teletext
tuning
receiver
channel
data
Prior art date
1986-10-03
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Ceased

Application number
AU79261/87A
Other versions

AU7926187A
(en

Inventor
Wilhelmus Johannes Christis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Koninklijke Philips NV

Original Assignee
Philips Gloeilampenfabrieken NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1986-10-03
Filing date
1987-10-01
Publication date
1990-01-11

1987-10-01
Application filed by Philips Gloeilampenfabrieken NV
filed
Critical
Philips Gloeilampenfabrieken NV

1988-04-14
Publication of AU7926187A
publication
Critical
patent/AU7926187A/en

1990-01-11
Application granted
granted
Critical

1990-01-11
Publication of AU592469B2
publication
Critical
patent/AU592469B2/en

2007-10-01
Anticipated expiration
legal-status
Critical

Status
Ceased
legal-status
Critical
Current

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Classifications

H—ELECTRICITY

H04—ELECTRIC COMMUNICATION TECHNIQUE

H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION

H04N7/00—Television systems

H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

H—ELECTRICITY

H04—ELECTRIC COMMUNICATION TECHNIQUE

H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION

H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]

H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof

H04N21/47—End-user applications

H04N21/488—Data services, e.g. news ticker

H04N21/4888—Data services, e.g. news ticker for displaying teletext characters

H—ELECTRICITY

H04—ELECTRIC COMMUNICATION TECHNIQUE

H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION

H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]

H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof

H04N21/47—End-user applications

H—ELECTRICITY

H04—ELECTRIC COMMUNICATION TECHNIQUE

H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION

H04N5/00—Details of television systems

H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards

H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information

H—ELECTRICITY

H04—ELECTRIC COMMUNICATION TECHNIQUE

H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION

H04N7/00—Television systems

H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division

H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only

H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital

H04N7/0887—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of programme or channel identifying signals

H—ELECTRICITY

H04—ELECTRIC COMMUNICATION TECHNIQUE

H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION

H04N7/00—Television systems

H04N7/10—Adaptations for transmission by electrical cable

H—ELECTRICITY

H04—ELECTRIC COMMUNICATION TECHNIQUE

H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION

H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]

H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof

H04N21/47—End-user applications

H04N21/482—End-user interface for program selection

H—ELECTRICITY

H04—ELECTRIC COMMUNICATION TECHNIQUE

H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION

H04N5/00—Details of television systems

H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards

H04N5/50—Tuning indicators; Automatic tuning control

Description

PHN. 11 .885 592469 O RIG I NA L
I
4 COMMONWEALTH OF AUSTRALIA PATENTS ACT 195271969 This docUmnent contains the amendments made wider v,Secti 49 and is correct for, printing.
COMPLETE SPECIFICATION FOR THE INVENTION ENTITLED: «lTelevision transmhission system».
The followinlg statement is a full descr~iption of’ this jflvention,incluiflg the best method of~ performing it known to me:- PHN 11 885 1A 13.10.89 Television transmission system A. Background of the invention A(1) Field of the invention The invention generally relates to a television transmission system with a transmitter station and one or more TV receivers. More particularly, the invention is usable within a community antenna television (CATV) system in which given TV programmes are transmitted at the transmitter end in different TV channels by the CATV licencee to the CATV subscribers. The invention may, however, also be used in a system in which TV signals are transmitted by a satellite, a video recorder, a video camera, etc, A(2) Description of the prior art The programme transmitted in a CATV system are i formed on the one hand by programmes which are received via t a community antenna and on the other hand by locally S. generated programmes. Since the total programme S» presentation is determined by the CATV licencee, this 4 *0 presentation may differ from CATV system to CATV system.
In addition the presentation may be extended, or the CATV licencee may find it necessary for organizational reasons to transmit programs in a different TV channel.
As is known, most modern TV receivers are tIItt 25 programmable, This means that they are provided with a non-volatile tuning memory having a rjmber of addressable memory locations each comprising tuning data with each tuning datum being characteristic of a given TV channel.
Each memory location can be addressed by the user by operating one or a combination of a plurality of programme keys which are present on a control panel. Furthermore the receiver h s a programming mode and a tuning mode. If the receiver is brought to the tuning mode and whenever a memory location is addressed, the tuning datum present therein is applied to a tuning circuit of tie receiver PHN 11 885 2 13.10.89 which is thus tuned to the TV channel characterized thereby. For programming the tuning memory the receiver is first brought to the programming mode. For each programme to be received the user can now store the tuning datum characterizing the channel in which it is provided in a user-addressed memory location of the tuning memory. The user must, however, be informed about the channels via which programmes are transmitted in the CATV system. To this end many CATV licencees nowadays transmit a local information programme via an information channel. If the user knows the number of this information channel he can tune the receiver to this information channel and thus obtains the desired data.
B.–Object and summary of the invention It is an object of the invention to simplify the programming of the above-mentioned tuning data memory.
i, In the television transmission system according to the invention the transmitter is therefore provided with: ,20 means for generating a teletext data which represents at least a repetitive part of a teletext information page which teletext data comprises information regarding the TV-channels which are utilised by the transmitter for the transmission of TV-programmes; means for transmitting this teletext data in an information channel allotted thereto; and the receiver is provided with: a teletext decoding circuit for capturing and decoding teletext pages; a tuning data memory for storing tuning data which are characteristic of TV-channels; a receiver tuning circuit for ‘tuning the receiver in rcsponse to a tuning datum applied thereto to the TV-channels characterized thereby, a control circuit which is coupled to the teletext decoding circuit, to the tuning data memory and to the tuning circuit and which is adapted to perform a store program comprising the following steps: L 1~ I I
,S-T
PHN 11.885 3 2.2.1987 a) tuning the receiver to the information channel; b) capturing and decoding of the teletext information page present in the information channel by the teletext decoding circuit; c) storing tuning data in the tuning memory in response to the captured teletext information page, which tuning data are characteristic of the TV-channels indicated on said teletext information page and utilised by the transmitter for the transmission of TV-programmes.
It is to be noted that the information channel may be a TV-channel, but also another transmission channel such as an FM-channel whose bandwidth is smaller than that of a TV-channel.
I V f t t f t
I
o *aU,swi m PHN 11.885 4 2.2.1987 The invention will be described in greater detail with reference to some Figures.
C. Explanation of the invention.
Brief description of the Figures.
Fig. 1 diagrammatically shows a transmitter for use in a television transmission system, Fig. 2 diagrammatically shows the format of the teletext information page which is transmitted by the transmitter shown in Fig. 1, Fig. 3 shows a TV receiver for use in a television transmission system and being suitable for the reception of signals transmitted by the transmitter shown in Fig. 1, i Figs. 4 and 5 show diagrams to explain the 15 operation of the receiver shown in Fig. 3.
C(2) _References.
j» 1. Bipolar IC’s for video equipment; r t Philips’ Data Handbook Integrateo Circuits, j 20 Part 2, January 1983.
i 2. Computer Controlled Teletext; J.R. Kinghorn; Electronic Components and Applications, Vol. 6, No. 1, S1984, pages 15-29.
3. IC’s for digital systems in radio, audio and video equipment; S Philips’ Data Handbook Integrated Circuits, S Part 3, September 1982.
SC(2) The structure of the television transmission system.
Fig. 1 shows a transmitter station and Fig. 3 shows one of a large number of TV receivers of a community antenna television (CATV) system. The transmitter station is provided with a receiver antenna 1 for television signals.
These signals are applied in known manner to a number of parallel arranged channel transposition stages each PHN 11 885 5 13.10.89 transposing a television signal transmitted in a given TV channel to a CATV channel desired by the CATV licencee.
The signals supplied by these channel transposition stages are added in an adder circuit 3 so that the CATV signal CAS occurs at the output thereof, which signal is transmitted to the subscribers.
In addition to the channels transposed by the channel transposition stages the CATV signal CAS also comprises an information channel for the transmission of an information signal INF which is applied via a channel transposition stage 4 to the adder circuit This information signal is supplied by an information signal source 5. This source comprlses a video signal source 51 supplying a baseband video signal for either a still or a changing picture. This video signal is applied to a known teletext insertion circuit 52 supplying the information signal INF. The desired teletext page which is present in this signal is received by the insertion circuit 52 from a i teletext page generator 53 having a keyboard 54 which is 20 operated by the CATV licencee.
More particularly the CATV licencee supplies a teletext information page which, as i~s shown in Fig. 2, consists of a number of lines similarly as -h’ner teletext pages. Each line is defined by a teletext data packet.
25 This commences in the conventional manner with a block A comprising a number of clock run-in bits, a block B with a framing code and a block R with a line prefix. The latter prefix comprises a magazine number M and a line number. In Fig. 2 the successive lines are denoted by the line numbers 0, 1, 2, respectively. The line having line number 0 is referred to as page header and also conventionally comprises, inrter alia, the page number in a block 0 and the header text in a block E.
The magazine number and the page number of this teletext information page are preferably standarized, For example, the magazine number is equal to one and the page number is a unique number for example, the hexadecimal i 1 PHN 11 885 13.10.89 number aa. Unique is understood to mean that the normal cycle of teletext pages of any magazine does not comprise this page number. The following lines of this teletext information page, in this example lines 1 and 2, comprise in a series of programmes P1 to P21, for exampl-, the associated channel numbers CH(P.) These channel numbers are in the sequence with an increasing index for P. This series of channel numbers is preceded by a starting code (for example, the hexadecimal code cc) and finishes with a final code (for example, the hexadecimal code ff). Thi series including the starting code and the final code is preferably provided with a Hamming protection described in the standing teletext standard. The channel numbers CH(P.i are coded as two BCD digits T (ten digits) and E (unit).
In this manner at least 18 channel numbers can be Saccommodated in a teletext line.
The furthe» lines of this teletext information page can be filled in an arbitrary manner. For example, they may also comprise the said channel numbers stating the 120 name of the associated programme with each number. It is ,to be noted that this 1inormation indicated on the further lines can also be supplied by the video signal source 51 and that the programme P1 is preferably this information channel. This information is certainly to be generated by the video signal source 51 if the CATV licencee decides not to transmit this information via the further lines of the teletext information page and as long as there are CATV subscribers who do not have a receiver with a teletext decoding circuit. In fact it must also be possible for these subscribers to be i,nformed of the program presentation.
Fig. 3 diagrammatcally shows the general structure of a colour television receiver for use in the CATV system. It is provided with an antenna input 6 receiving the video signals which are supplied by the transmitter station shown in Fig. 1 and which are processed in a number of processing circuits. More particularly they UPHN 11.885 7 1.2.1987 are applied to a tuning circuit 7 (tuner or channel selector). This tuner receives band selec tion voltage VB in order to be able to tune the receiver to a frequency within one of the frequency bands V’HF1; VHF2; SUHF etc. Furthermore the tuner receives a tuning vroltage V T in order to tune the receiver to the desi red frequency within the frequency band selected. V and V B T 4 together determine the cbannel to which the receiver is tuned.
11 iaThe tuner 7supplies an oscillator signal of the frequency f 0 on the one band and an intermediate frequency signal IF on the other hand. The latter signal is applied to an IF amplification and demodulation circuit 8 which supplies a base band composite video [j 15 signal OVBS. The Philips IC TDA 25)40 described in reference d 1 could be chosen for this circuit 8.
The signal CYBS thus obtained is also applied to a colour decoding circuit 9 which supplies the three elementary colour signals R, G, B which are in their turn applied via an amplifier circuit 10 to a picture display tu be 11 for displaying programs on the display screen 12.
In the colour 0ecoding circuit 9, colour saturation, contrast and brightness are influenced by means of control signals. It also receives an additional set of elementary colour signals W4 and B’ as well as a priaryc~lur ignls GandB can be entirely or partly su~ppressed. A Philips TO associated with the TT)A 356X group also described~ ini reference 1 may be chosen for this circuit 9.
The video signal OVBS is al-so applied to a teletext decoding circuit 13. This circuit comprises a video input processor 13(3) receiving the video signal OVBS and separating the teletext data therefrom and 3supplying the latter over a data line TTD to a circuit 13(2) which will be referred to as computer-controlled teletext decoder (OCT decoder for shorb). This OCT decoder also r PHN 11.85 8 1.2.1987 receives a clock signal via a clock line TTC from the video input processor 13(1). It is also coupled to a memory 13(3) in which one or more teletext pages can be stored and which will therefore be referred to as page memory. This CCT decoder supplies the three previously mentioned elementary colour signals G’ and B’ and the switching signal BLK. The video input processor 13(1) can be constituted by the Philips IC SAA 5230, the CCT decoder 13(2) by the Philips 1C SAA 5240 and the page memory by a 1K8 to 8K8 RAN. For an extensive description of the structure and operation of this I teletext decoder 13 reference is mpde to reference 2 for Sthe sake of brevity.
The CCT decider 13(2) is also connected to a bus 15 system 14. This system is also connected to a control circuit 15 in the form of a microcomputer, an interface circuit 16 and a non-volatile storage medium 17. The interface circuit ?6 supplies the said band selection voltage VE, the tuning voltage VT as well as the control 2signals for controlling the analog functions of contravt, brightness and colour saturation. It receives an oscillator signal of a frequency fto which is derived by means l of a frequency divider 18 with a division factor of 256 from the oscillator signal of the frequency f
OSC
i which is supplied by the tuner 7. Tuner 7, frequency divider 18 and interface circuit 16 gtrether constitute a frequency synthesis circuit. The Philips 1C SAB 3035 known under the natne of CITAC (Computer Interface for Tuning and Analog Control) and described in reference 3 may be chosen as an interface circuit.
The storage medium 17 is used to store tuning data each characterizing a TB channel in which a preselected program is transmitted. If such a tuning datum is applied to the interface circuit 16 under the control of the microcomputer 15, it supplies a given band sele ction voltage *V and a given tuning voltage V T so that the receiver is tuned to the desired channel. It is to be noted
;.L
PHN 11.885 9 1.2,1987 that for the sake of simplicity the tuning datum is hereinafter assumed to be identical to the channel number of the TV channel which it characterizes.
A specimen of the MAB 84 xx family manufactured by Philips may be taken as a microcomputer 15. Although the overall construction of a microcomputer is assumed to be generally known, it is to be briefly noted that it has a control program memory (generally a ROM) and a working memory. The manufacturer has stored a number of control programs in tht control program memory and, if necessary, a number of fixed magniturdea In the relevant case this control program memory comprises, for example, the magazii number and the page number of the teletext 1 information page which is transmitted in the information channel.
tTo operate this receiver, a control system is sit$o present comprising, inter alia, an on/off switch 19 for supplying or interrupting supply voltage to the receiver and for establishing or interrupting the conneotion between a d.c. voltage source 20 and the reset input of the microcomputer. Furthermore this control system comprises a local control panel 21 which is also connected to the bus system 14 and which is provided with a number of keys for local control of the receiver. This local control panel 21 is adapted, inter alia, in such a manner that the user can program the tuning memory as he wishes, that is to say, he can store channel numbers of the desired programs in the tuning memory as he wishes.
This manner of programming of the tuning memory will be referred to as «manual programming».
Finally the control system comprises a remote control system consisting of V. manual apparatus 22 and a local receiver 23. This local receiver 23 has an output which is connected to an input (usually the «interrupt» input) of the microcomputer. It may be constituted by the Philips C1 TDB 2033 which is described in reference 3 and is then intended for receiving infrared signals which are transmitted by the manual apparatus 22, PFlN 11.885 10 1.2.1987 The manual apparatus 22 has a control panel 22(1) comprising a number of digit keys denotedby the digits 0 to 9. This control panel also comprises a number of further keys such as a colour saturation key SAT, a brightness key, BRI, a volume key VOL, a teletext mode key TXT, a mixed mode key MIX and a TV mode key TV.
The teletext mode key is intended to bring the receiver from the TV mode to the teletcxb mode, whereas the TV mode key is intended to bring the receiver from the teletext mode to the TV mode. The control of the mixed mode key MIX brings the receiver to both the TV mode and the teletext mode so that the teletext information and the normal video signal can be simultaneously displayed on the screen 12. The keys of this control panel are coupled to a transmitter circuit 22(2) for which, for example, the Philips IC SAA 3004 can be chosen which is extensively described in reference 3. If a key is depressed, the transmitter circuit 22(2) generates a code specific of this key, Which code is transmitted via an infrared carrier to the local receiver 23f demodulated in this receiver and subsequently presented to the microcomputer Thus the microcomputer receives operatinginstructions and activates one of the circuits coupled thereto via the bus system 14. It is to be noted that an operating instruction may be aingle, that is to say, it is complete after depressing only one key. It may alternatively be multiple, that is to say, it is not complete until two or more keys have been depressed.
In the TV mode a preprogrammed program is allotted to each digit key. rior example, the digit key 1 has the programme P1 allotted to it so that after depressing this dgit key 1 the channel number CH (Pi) in which this programme P1 is transmitted is read from the tuning memory 17 and is applied to the interfaoe circuit 16 which tunes theo receiver to this TV channel.
Inthe relevant case it will be assumed that reoeiver is also tuned to this channel with the program P1 when the PHN 11 .885 1 1 1.2.1987 receiver is swAitched on by operating suitch 19. For this reason the number of the information channel, if present, Is preferably chosen for the channel number Ci-(pi).
To ensure that after switching on the informatioz) channel, if present, is tuned to, the control program me memory of’ the microcomputer comprises, for example, the switch-on control program $WON shown in Fig. 4t. In thi s I wogram a soft-ware counter is reset in a first step 40, so that its counting position n assumes the value of zeroi Subsequently the receiver is tuned in a step 41 to the channel in which the programme P1 is transmitted. More parti cularly the channel number CH-(Pi which is present in the tuning memor’y 17 Is therefore applied to the interface circuit 16. Subsequently it i checked in a step 42 whether the user has depressed a key of the local control panel I or of the control panel of the manual apparatus and 4 thus wants to make it clear that hie is not interested in the information in the Information channel. This is indicatedl by step 11,. If none of the keys of the control panels has been depressed, it is assumed that the user wishes «automatic prVogrammting»1 of the tuning memory. To realize thIs, the unique teletext page-, number aa stored in the control proaram memory Is appi!ec1 in a step 44 to teOCT decoder 13 whichi th’ i to capture the relevant teletext page. This COci 4 s uilt Up in such. a manner~ thlat it genervates, tv Aiord having a first and a second ‘Value when the deairc4 tolotex-< 4g is received ad is not (not yet) reooived, respectivel'y. This status word can computer checks whether this status word has either the first or the second valuo This is done dri-qg a giveni interval T or, for examplo, tw~o n'.~as the status Worej hau th~ e, v COAP, t* in -step 46 Whether theosO tWO acv-014e~ad Jpsqed. Tf within 36 this, two_$eon Q (,ej'tus word assumes the first value, it Meat or is indeed tuned to 4tt in~Cormaxtion O'X 'orfiatiort page transmitted :1 PHN 11. I 885 1.2.1987 4t 4 tt I Il aII I therein and stored after reception in the page memory 13(3) the part located between the starting code cc and the final code ff is transmitted to the working memory ofthe microcomputer. This is effected in a step 47 in which step the channel numbers are deprived from a possible Hamming protection. The cleared channel numbers obtained thereby are subsequently transferred in a step 48 to the tur ng memory 17 so that the channel number CH(Pq) with the programme Pq is stored in a memory location of the tuning memory 17 which is accessible by generation ofthe number q with the aid of the digit keys on the manual apparatus of the remote control system. After performing this step 47, the switch-on programme has ended. If the status word does not assume the first 15 value within two seconds; a sub-control programme is started in which the receiver searches the information channel. This sub-control programme comprises a step 49 in which the counting position n of the software counter which was equal to zero until that moment, is raised by one. In a step 50 it is checked whether the new counting position has reached a given maximum value, in this case 100. If this is the case it means that there is no information channel present and that the user must change over to "manual programming". This is indicated by step 51 which may comprise, for example, a sub-step so as to make an appropriate text appear on the screen. However, if the maximum counting position is not reached yet, the actual counting position is applied as.a channel number in a step 52 to the interface circuit 16 and the receiver is tuned to the relevant channel. Subsequently the programme is continued, commencing at step 45. In this manner an unknown channel number n can be maintained which corresponds to a channel in which a teletext information page is transmitted and the information incorporated therein regarding receivable channels can be automatically stored in the tuning memory 17 at sites which are directly accessible to the digit keys on the control panel. ii I II I PHN 11.885 13 1.2.1987 The inventive idea explained hereinbefore with reference to a community antenna television system, namely to cause a known programme (informat on programme), transmitted in an unknown channel to be identified with a teletext page transmitted with this programme and having a unique page number can also be used in combination with signal sources other than the transritter station of the community antenna television system; for example, in combination with a VCR, a VLP, a video camera, a home computer. All these devices can be provided with a teletext page generator (for example, a ROM) which does not generate more than, for example, the page header (with line number 0) comprising the page and magazine S number and possibly as a header text an indication of the source by which this page is generated. Each source o S has its own unique page number. For example, the VCR l.o thas the hexadecimal page number ab, the,- VLP the page 7 number ac, etc. All these page numbers as well as the associated magazine numbers are stored in the TV receiver in the control programme memory of the microcomputer To find the channel numbers in which signals are transmitted by the different devices VCR, VLP, camera, etc. the local control panel 21 is provided with device keys VCR, VLP, CAM and a search key SC. If, for example, both this search key SC and one of the device keys is depressed, the microcomputer I runs through the control programme shown in Fig. 5. This control programme largely corresponds to the programme shown in j Fig. 4. Equal steps in the two control programmes have been denoted by the same reference numerals. The control programme shown in Fig. 5 differs from that in Fig. 4 at the following points. Instead of a step 41, this control programme includes a step 54 in which the TV receiver is tuned to channel number n. Furthermore this control programme dies not include the steps 42, 43, 47 and 52 and after performing step 50 step 54 is performed. PHN 11.885 14 1.2.1987 In step 48 the channel number .in which signals are transmitted by the relevant device is stored in a memory location of the non-volatile memory 17. In order to gain direct access to such memory locations, the manual apparatus 22 is provided with a number of apparatus keys which are denoted by 4 TV, VCR, VLP, CAT4, respectively. By depressing such a key, the TV receiver is directly tuned to the relevant channel. I o Claims (3) 1. A television transmission system comprising a transmitter and a receiver, the transmitter being provided with: means for generat'ng teletext data which represents at least a repetitive part of a teletext information page, which teletext data comprises information regarding the TV channels which are utl'lized by this transmitter for the transmission of TV programmes; means for transmitting said teletext data in a transmission channel allotted thereto and denoted information channel; and the receiver being provided with: a teletext decoding circuit for capturing and decoding teletext pages; a tuning data memory for storing tuning data which are characteristic of transmission channels; a receiver tuning circuit for tuning the receiver in response to a tuning datum applied thereto to the transmission channel characterized thereby; control circuit which is coupled to the teletext decoding circuit, to the tuning memory and to the tuning circuit and which is adapted to perform a store programme comprising the following steps: a) tuning the receiver to the information channel; S 25 b) capturing and decoding the teletext data transmitted in the information channel by the teletext decoding circuit; II c) storing tuning data in the tuning data memory in response to the capturet teletext information page, which tuning data are characteristic of the TV channels indicated on said teletext information page and utilized by the transmitter for the transmission of TV programmes. 2. A transmitter for use in a televiian transmission system as claimed in Cla!li I and being provided with: PHN 11 885 16 12.10.89 means for generating a teletext data representing a repetitive teletext information page, which teletext information page comprises information regarding the TV channels which are utilized by said transmitter for the transmission of TV programmes; means for transmitting said teletext data in a transmission channel allotted thereto and denoted information channel. 3. A receiver for use in a television transmission system as claimed in Claim 1 and being provided with: a teletext decoding circuit for capturing and decoding teletext pages; a tuning data memory for storirg tuning data which are characteristic of transmission channels; a receiver tuning circuit for Luning the receiver in response to a tuning datum applied thereto to the transmission channel Characterized thereby; r a control circuit which is coupled to the teletext decoding circuit, to the tuning data memory and to the S'0 tuning circuit and which is adapted to perform a store programme comprising the following steps: a) tuning the receiver to the information channel; b) capturing and decoding the teletext data transmitted in the information channel by the teletext S 25 decoding circuit. c) storing tuning data in the tuning data memory in response to the captured teletext information page, which rr "tuning data are, characteristic of the TV channels indicated on said teletext information page and utilized by the transmitter for the transmission of TV programmes. 4. A receiver for use in a television transmission I* system as 1 aimed in Claim 1, and suitable for the receptior (gnals transmitted by a transmitter as claimed m 2 and being provided with: a telrcext decoding circuit for capturing and decoding teletext pages; PHN 11 885 17 12.10.89 a tuning data memory for storing tuning data which are characteristic of transmission channels; a receiver tuning circuit for tuning the receiver in response to a tuning datum applied thereto to the transmission channel characterized thereby; a control circuit which is coupled to the teletext decoding circuit, to the tuning data memory and to the tuning circuit and which is adapted to perform after reception of an appropriate command a store programme comprising the following steps: a) tuning the receiver to the information channel; b) capturing and decoding the teletext data transmitted in the information channel by the teletext decoding circuit; c) storing tuning data in the tuning data memory in response to the captured teletext information page, which tuning data are characteristic of the TV channels indicated on said teletext information page and utilized by the transmitter for the transmission of TV programmes. 5. A television transmission system as claimed in Claim 1 with a transmitter and a receiver, the transmitter being provided with: means for generating teletext data which represents at least a repetitive part of a teletext information page having an information page number; S- means for transmitting said teletext data in a transmission channel allotted thereto and denoted S% information channel; «and the receive,' being provided with: '0 a teletext decoding circuit for capturing in response to a page number applied thereto the teletext pcge having said page number; a tuning data memory for storing tuning data which are characteristic of TV channels; a receiver tuning circuit for tuning the receiver in response to a tuning datum applied thereto to the TV 3 ll ^i r v^ PHN 11 885 18 12.10.89 channel cqaracterized thereby; a control circuit which is coupled to the teletext decoding circuit, to the tuning data memory and to the tuning circuit and which is adapted to perform a further store program comprising the following steps: a) applying the information page number to the teletext decoding circuit; b) searching a transmission channel in which the teletext information page having that particular information page number is transmitted; c) storing a tuning datum in response to the captured teletext information page in the tuning data m6ffory, which tuning datum is characteristic of the information channel. 6. A television transmission system as claimed in Claim 5 in which the information page number is a unique numaber so that the information channel is distinguished S* from other TV channels by the presence therein of a teletext page having said unique page number. 7. A receiver as claimed in Claim 3 or 4, provided with means which can be operated by the user for starting the store program or the further store program. 8. A television transmission system substantially as described with reference to the accompanying drawings. 9. A transmitter substantially as described with reference to Figures i and 2 of the accompanying drawings. A receiver substantially as described with reference to Figures 3, 4 and 5 of the accompanying I t drawings. 1 S, DATED THIS TWENTY-FIFTH DAY OF OCTOBER 1989 N. V. PHILIPS' GLOEILAMPENFABRIEKEN 1 e Ai AU79261/87A 1986-10-03 1987-10-01 Television transmission system Ceased AU592469B2 (en) Applications Claiming Priority (2) Application Number Priority Date Filing Date Title NL8602494A NL8602494A (en) 1986-10-03 1986-10-03 TELEVISION TRANSFER SYSTEM. NL8602494 1986-10-03 Publications (2) Publication Number Publication Date AU7926187A AU7926187A (en) 1988-04-14 AU592469B2 true AU592469B2 (en) 1990-01-11 Family ID=19848631 Family Applications (1) Application Number Title Priority Date Filing Date AU79261/87A Ceased AU592469B2 (en) 1986-10-03 1987-10-01 Television transmission system Country Status (10) Country Link US (1) US4894714A (en) EP (1) EP0263555A1 (en) JP (2) JP3080623B2 (en) KR (1) KR880005811A (en) CN (1) CN87106725A (en) AU (1) AU592469B2 (en) CA (1) CA1328010C (en) DK (1) DK513587A (en) FI (1) FI874277A (en) NL (1) NL8602494A (en) Cited By (1) * Cited by examiner, † Cited by third party Publication number Priority date Publication date Assignee Title AU614330B2 (en) * 1988-02-27 1991-08-29 Alcatel N.V. User guide for data terminal Families Citing this family (50) * Cited by examiner, † Cited by third party Publication number Priority date Publication date Assignee Title NL8900121A (en) * 1989-01-19 1990-08-16 Philips Nv TELEVISION SIGNAL RECEIVER WITH TELETEXT DECODER AND ADAPTIVE WAIT REDUCTION CIRCUIT. DE3928175A1 (en) * 1989-01-21 1990-07-26 Nokia Unterhaltungselektronik VIDEO RECEIVER KR900017403A (en) * 1989-04-28 1990-11-16 이헌조 How to Automatically Save Teletext Received Optimal Points NL8902241A (en) * 1989-09-07 1991-04-02 Philips Nv DEVICE FOR PROGRAMMING A VIDEO RECORDER, AND A VIDEO RECORDER PROVIDED WITH THE DEVICE. GB8922702D0 (en) * 1989-10-09 1989-11-22 Videologic Ltd Radio television receiver NL8902516A (en) * 1989-10-11 1991-05-01 Philips Nv RECEIVER OF TELEVISION SIGNALS. KR920010811B1 (en) * 1990-05-10 1992-12-17 주식회사 금성사 Tv teletext apparatus US5239540A (en) * 1990-11-27 1993-08-24 Scientific-Atlanta, Inc. Method and apparatus for transmitting, receiving and communicating digital data signals with corresponding program data signals which describe the digital data signals GB9027669D0 (en) * 1990-12-20 1991-02-13 Rca Licensing Corp Fault tolerant vcr recording control KR0178536B1 (en) * 1991-03-11 1999-04-15 강진구 Channel selecting method of relative program JP2517804B2 (en) * 1991-06-19 1996-07-24 船井電機株式会社 Channel preset device for television receiver DE69231019T2 (en) * 1991-08-02 2000-12-21 Koninkl Philips Electronics Nv Presentation system for messages that provide information on request, sending station and receiving station for use in such a presentation system KR930007260A (en) * 1991-09-16 1993-04-22 강진구 TV / TTX Contrast and Bright Common Control Method and Circuit GB2264409B (en) * 1992-02-03 1995-11-29 Amstrad Plc Television channel display US5404172A (en) * 1992-03-02 1995-04-04 Eeg Enterprises, Inc. Video signal data and composite synchronization extraction circuit for on-screen display FR2690298B1 (en) * 1992-04-15 1998-04-10 Telediffusion Fse METHOD AND DEVICE FOR MANAGING A BROADCAST RESOURCE. JP3026686B2 (en) * 1992-09-22 2000-03-27 三洋電機株式会社 Video tape recorder BE1007077A3 (en) * 1993-05-13 1995-03-07 Philips Electronics Nv TRANSMITTING STATION FOR THE TRANSMISSION OF A PLURALITY OF TELEVISION PROGRAMS, AND A RECEIVER FOR RECEIVING THE PROGRAMS. BE1007167A3 (en) * 1993-05-13 1995-04-11 Philips Electronics Nv Broadcasting station for broadcasting a plurality of TELEVISION PROGRAMS, AND RECEIVER FOR RECEIVING IT. US5734786A (en) * 1993-10-20 1998-03-31 E Guide, Inc. Apparatus and methods for deriving a television guide from audio signals KR960005932B1 (en) * 1993-12-22 1996-05-03 Lg Electronics Inc Channel memory apparatus & method BR9505792A (en) * 1994-03-23 1997-08-12 Philips Electronics Nv Apparatus and method for transmitting tuning data from broadcasting transmitters to a receiver and respective broadcasting receiver DE4410547C2 (en) * 1994-03-26 1999-03-18 Loewe Opta Gmbh Process for creating an electronic program guide and circuit therefor US5768539A (en) * 1994-05-27 1998-06-16 Bell Atlantic Network Services, Inc. Downloading applications software through a broadcast channel US5666293A (en) * 1994-05-27 1997-09-09 Bell Atlantic Network Services, Inc. Downloading operating system software through a broadcast channel US5635979A (en) * 1994-05-27 1997-06-03 Bell Atlantic Dynamically programmable digital entertainment terminal using downloaded software to control broadband data operations US5734589A (en) * 1995-01-31 1998-03-31 Bell Atlantic Network Services, Inc. Digital entertainment terminal with channel mapping DE4438412C2 (en) * 1994-10-27 2001-05-10 Grundig Ag Device for switching television programs using a television text decoder US20030213001A1 (en) * 1994-11-07 2003-11-13 Index Systems, Inc. Method and apparatus for transmitting and downloading setup information GB9425333D0 (en) * 1994-12-15 1995-02-15 Philips Electronics Uk Ltd Telivision receiver US5659793A (en) * 1994-12-22 1997-08-19 Bell Atlantic Video Services, Inc. Authoring tools for multimedia application development and network delivery US5826102A (en) * 1994-12-22 1998-10-20 Bell Atlantic Network Services, Inc. Network arrangement for development delivery and presentation of multimedia applications using timelines to integrate multimedia objects and program objects US20020010918A1 (en) * 1994-12-28 2002-01-24 E-Guide, Inc. Apparatus and methods for a television on-screen guide US6341195B1 (en) * 1994-12-28 2002-01-22 E-Guide, Inc. Apparatus and methods for a television on-screen guide JPH08205048A (en) * 1995-01-25 1996-08-09 Mitsubishi Electric Corp Automatic tuning device US6002451A (en) * 1995-01-25 1999-12-14 Mitsubishi Denki Kabushiki Kaisha Automatic tuning apparatus for a video tape recorder US5583863A (en) * 1995-01-31 1996-12-10 Bell Atlantic Network Services, Inc. Full service network using asynchronous transfer mode multiplexing WO1996024217A1 (en) * 1995-02-02 1996-08-08 Philips Electronics N.V. Merging of video mosaic with teletext KR0164827B1 (en) * 1995-03-31 1999-03-20 김광호 The program guide signal receiver GB9526304D0 (en) 1995-05-22 1996-02-21 British Sky Broadcasting Ltd Interactive services interface US5963269A (en) * 1995-06-07 1999-10-05 Beery; Jack Apparatus for controlling a television receiver using a plurality of stored labels US5801753A (en) * 1995-08-11 1998-09-01 General Instrument Corporation Of Delaware Method and apparatus for providing an interactive guide to events available on an information network US6057874A (en) * 1996-11-21 2000-05-02 General Instrument Corporation Infrared blaster control system in cable television communication systems DE19723290A1 (en) * 1997-06-04 1998-12-10 Thomson Brandt Gmbh Method of programming a television receiver WO1999049662A2 (en) * 1998-03-26 1999-09-30 Koninklijke Philips Electronics N.V. Automatic installation FR2790352B1 (en) * 1999-02-26 2001-04-27 Thomson Multimedia Sa DEVICE FOR MONITORING OR MANAGING A TELEVISION RECEIVER US20100311399A1 (en) * 2005-03-31 2010-12-09 United Video Properties, Inc. Systems and methods for generating audible reminders on mobile user equipment KR100838882B1 (en) * 2006-05-26 2008-06-16 엘지전자 주식회사 Method and apparatus for the Teletext realizing of image display device US20090165049A1 (en) * 2007-12-19 2009-06-25 United Video Properties, Inc. Methods and devices for presenting and interactive media guidance application US20090165051A1 (en) * 2007-12-19 2009-06-25 United Video Properties, Inc. Methods and devices for presenting an interactive media guidance application Citations (2) * Cited by examiner, † Cited by third party Publication number Priority date Publication date Assignee Title AU1104583A (en) * 1981-12-19 1983-06-30 Frederick William Chard Method and apparatus for editing the output of a television AU564755B2 (en) * 1982-11-25 1987-08-27 N.V. Philips Gloeilampenfabrieken Programmable receiver control Family Cites Families (10) * Cited by examiner, † Cited by third party Publication number Priority date Publication date Assignee Title JPS49135513A (en) * 1973-04-28 1974-12-27 JPS5737954A (en) * 1980-08-13 1982-03-02 Nec Corp Terminal control system DE3221768C1 (en) * 1982-06-09 1983-12-29 Standard Elektrik Lorenz Ag, 7000 Stuttgart Receiving device for receiving radio and / or television broadcasts with an electronically tunable tuner circuit US4527194A (en) * 1983-07-27 1985-07-02 Zenith Electronics Corporation Channel assignment for CATV system DE3335082C2 (en) * 1983-09-28 1986-03-13 Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover Method for programming a receiver, in particular a video recorder US4600921A (en) * 1983-10-19 1986-07-15 Zenith Radio Corporation Full-field teletext system with dynamic addressability DE3426407A1 (en) * 1984-07-18 1986-01-23 SWF Auto-Electric GmbH, 7120 Bietigheim-Bissingen WIPING SYSTEM, ESPECIALLY FOR MOTOR VEHICLES NL8500047A (en) * 1985-01-09 1986-08-01 Philips Nv TELEVISION RECEIVER WITH TELETEXT DECODER LINK AND PAGE NUMBER MEMORY. US4706121B1 (en) * 1985-07-12 1993-12-14 Insight Telecast, Inc. Tv schedule system and process US4698670A (en) * 1986-07-14 1987-10-06 Westinghouse Electric Corp. Cable stereo apparatus 1986 1986-10-03 NL NL8602494A patent/NL8602494A/en not_active Application Discontinuation 1987 1987-09-29 EP EP87201860A patent/EP0263555A1/en not_active Withdrawn 1987-09-30 FI FI874277A patent/FI874277A/en not_active Application Discontinuation 1987-09-30 DK DK513587A patent/DK513587A/en not_active Application Discontinuation 1987-09-30 CN CN198787106725A patent/CN87106725A/en active Pending 1987-10-01 CA CA000548387A patent/CA1328010C/en not_active Expired - Fee Related 1987-10-01 AU AU79261/87A patent/AU592469B2/en not_active Ceased 1987-10-02 US US07/104,319 patent/US4894714A/en not_active Expired - Lifetime 1987-10-02 KR KR870011031A patent/KR880005811A/en not_active Application Discontinuation 1987-10-02 JP JP62248173A patent/JP3080623B2/en not_active Expired - Lifetime 1996 1996-01-09 JP JP08001577A patent/JP3083749B2/en not_active Expired - Lifetime Patent Citations (2) * Cited by examiner, † Cited by third party Publication number Priority date Publication date Assignee Title AU1104583A (en) * 1981-12-19 1983-06-30 Frederick William Chard Method and apparatus for editing the output of a television AU564755B2 (en) * 1982-11-25 1987-08-27 N.V. Philips Gloeilampenfabrieken Programmable receiver control Cited By (1) * Cited by examiner, † Cited by third party Publication number Priority date Publication date Assignee Title AU614330B2 (en) * 1988-02-27 1991-08-29 Alcatel N.V. User guide for data terminal Also Published As Publication number Publication date NL8602494A (en) 1988-05-02 JP3080623B2 (en) 2000-08-28 CA1328010C (en) 1994-03-22 JP3083749B2 (en) 2000-09-04 US4894714A (en) 1990-01-16 DK513587D0 (en) 1987-09-30 JPH08336119A (en) 1996-12-17 JPS6397076A (en) 1988-04-27 FI874277A (en) 1988-04-04 KR880005811A (en) 1988-06-30 FI874277A0 (en) 1987-09-30 EP0263555A1 (en) 1988-04-13 AU7926187A (en) 1988-04-14 DK513587A (en) 1988-04-04 CN87106725A (en) 1988-04-13 Similar Documents Publication Publication Date Title AU592469B2 (en) 1990-01-11 Television transmission system CA2048753C (en) 1997-01-21 Previous channel feature in a television receiver having multiple rf inputs US5469431A (en) 1995-11-21 Method of and apparatus for channel mapping with relative service identification US8631434B2 (en) 2014-01-14 Method and apparatus for transmitting and downloading setup information EP0187417B1 (en) 1990-05-16 Television receiver comprising a teletext decoding circuit and a page number memory JP2797228B2 (en) 1998-09-17 Television receiver EP0624979B1 (en) 2000-01-26 Transmitter station for transmitting a plurality of television programs, and receiver for receiving the programs WO2000019606A1 (en) 2000-04-06 Channel selection in digital television background EP0536828A1 (en) 1993-04-14 Television receiver US6025887A (en) 2000-02-15 Transmitter for transmitting tuning data in a television signal and receiver for receiving same US5649285A (en) 1997-07-15 Transmission of tuning data of broadcasting transmitters to a receiver to facilitate automated set-up of the receiver based on receivable transmitters in a reception area GB2325805A (en) 1998-12-02 Selecting a channel in a composite analogue/digital TV receiver JP2985933B2 (en) 1999-12-06 Tuning device US4158815A (en) 1979-06-19 System for reducing the number of binary signals representing channel numbers KR100281040B1 (en) 2001-02-01 TV channel memory and channel selection signal processing method EP0324515A1 (en) 1989-07-19 Television receiver including a teletext decoder JPS6133010A (en) 1986-02-15 Channel selector JP2926727B2 (en) 1999-07-28 Receiver KR19990056481A (en) 1999-07-15 How to Display Program Guide Screen of Satellite Broadcast Receiver KR19990042294A (en) 1999-06-15 Broadcast Mode Switching Method of Satellite Broadcast Receiver
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