GB1262156A – Apparatus for producing synchronisation in address-coded communication systems
– Google Patents
GB1262156A – Apparatus for producing synchronisation in address-coded communication systems
– Google Patents
Apparatus for producing synchronisation in address-coded communication systems
Info
Publication number
GB1262156A
GB1262156A
GB7054/69A
GB705469A
GB1262156A
GB 1262156 A
GB1262156 A
GB 1262156A
GB 7054/69 A
GB7054/69 A
GB 7054/69A
GB 705469 A
GB705469 A
GB 705469A
GB 1262156 A
GB1262156 A
GB 1262156A
Authority
GB
United Kingdom
Prior art keywords
programme
address
feb
frequencies
communication systems
Prior art date
1968-02-12
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.)
Expired
Application number
GB7054/69A
Inventor
Gustav Guanella
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.)
Patelhold Patenverwertungs and Elektro-Holding AG
Original Assignee
Patelhold Patenverwertungs and Elektro-Holding AG
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.)
1968-02-12
Filing date
1969-02-10
Publication date
1972-02-02
1968-02-12
Priority claimed from CH198168A
external-priority
patent/CH488348A/en
1969-02-10
Application filed by Patelhold Patenverwertungs and Elektro-Holding AG
filed
Critical
Patelhold Patenverwertungs and Elektro-Holding AG
1972-02-02
Publication of GB1262156A
publication
Critical
patent/GB1262156A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
H04K1/00—Secret communication
H04K1/003—Secret communication by varying carrier frequency at or within predetermined or random intervals
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
H03B2200/006—Functional aspects of oscillators
H03B2200/0092—Measures to linearise or reduce distortion of oscillator characteristics
Abstract
1,262,156. Radio signalling. PATELHOLD PATENTVERWERTUNGS-UND ELECTROHOLDING AG. 10 Feb., 1969 [12 Feb., 1968], No. 7054/69. Addition to 1,261,771. Heading H4L. The communication system disclosed in Fig. 3 of the parent Specification is modified in that a sub-programme of frequency-switching is superimposed on the main frequency-switching programme to provide an increased number of address signals and improve the secrecy of the system. The frequencies of the original programme are shifted periodically in such manner that parallel scanning lines are provided as before but the frequencies no longer appear in a regular sequence but are distributed in a pseudorandom manner. A common basic programme may be provided for all the stations in a network, individual stations being characterized by different sub-programmes.
GB7054/69A
1968-02-12
1969-02-10
Apparatus for producing synchronisation in address-coded communication systems
Expired
GB1262156A
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
CH198268A
CH499931A
(en)
1968-02-12
1968-02-12
Synchronization method for program-controlled carrier shift keying
CH198168A
CH488348A
(en)
1968-02-12
1968-02-12
Synchronization method for program-controlled carrier shift keying
Publications (1)
Publication Number
Publication Date
GB1262156A
true
GB1262156A
(en)
1972-02-02
Family
ID=25689167
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB7054/69A
Expired
GB1262156A
(en)
1968-02-12
1969-02-10
Apparatus for producing synchronisation in address-coded communication systems
Country Status (6)
Country
Link
US
(1)
US3584303A
(en)
AT
(1)
AT308837B
(en)
CH
(1)
CH499931A
(en)
DE
(1)
DE1817118C3
(en)
GB
(1)
GB1262156A
(en)
NL
(1)
NL6902038A
(en)
Families Citing this family (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3909722A
(en)
*
1973-06-22
1975-09-30
Jbh Electronic Systems Inc
Variable frequency communication system
DE2550592C1
(en)
*
1975-11-11
1990-12-06
Siemens Ag
Radio system
DE2726865A1
(en)
*
1977-06-15
1979-01-18
Blaupunkt Werke Gmbh
PROCEDURE AND CIRCUIT FOR TRANSMITTING EMERGENCY SIGNALS AND INFORMATION
US4276652A
(en)
*
1978-10-02
1981-06-30
Technical Communications Corp.
Secure communication system with improved frequency-hopping arrangement
FR2518338A1
(en)
*
1981-12-15
1983-06-17
Thomson Csf
METHOD FOR SYNCHRONIZING THE TRANSCEIVER-RECEIVER STATIONS OF A FREQUENCY HOPPER NETWORK AND POST FOR CARRYING OUT SAID METHOD
IN159180B
(en)
*
1982-01-27
1987-04-04
Marconi Co Ltd
US4654859A
(en)
*
1986-04-09
1987-03-31
Racal Data Communications Inc.
Frequency synthesizer for frequency hopping communication system
Family Cites Families (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2448055A
(en)
*
1944-02-21
1948-08-31
Standard Telephones Cables Ltd
Wobbled frequency carrier wave communication system
CH365640A
(en)
*
1958-08-20
1962-11-15
Nl Ind Radio Artikelen Nira Nv
Paging system
FR1462279A
(en)
*
1965-09-21
1966-04-15
Cit Alcatel
Random carrier frequency radio links
US3310802A
(en)
*
1965-12-01
1967-03-21
North American Aviation Inc
Data link system
US3484693A
(en)
*
1966-01-03
1969-12-16
Gen Electric
Frequency shifted sliding tone sampled data communication system
NL165624C
(en)
*
1966-08-05
1981-04-15
Communications Satellite Corp
COMMUNICATION RECEIVER.
1968
1968-02-12
CH
CH198268A
patent/CH499931A/en
not_active
IP Right Cessation
1968-12-27
DE
DE1817118A
patent/DE1817118C3/en
not_active
Expired
1968-12-30
AT
AT1267668A
patent/AT308837B/en
not_active
IP Right Cessation
1969
1969-02-10
GB
GB7054/69A
patent/GB1262156A/en
not_active
Expired
1969-02-10
NL
NL6902038A
patent/NL6902038A/xx
unknown
1969-02-11
US
US798336A
patent/US3584303A/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
DE1817118A1
(en)
1969-08-14
US3584303A
(en)
1971-06-08
CH499931A
(en)
1970-11-30
NL6902038A
(en)
1969-08-14
DE1817118B2
(en)
1980-03-13
DE1817118C3
(en)
1980-10-30
AT308837B
(en)
1973-07-25
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