GB1108003A

GB1108003A – Signal switching system
– Google Patents

GB1108003A – Signal switching system
– Google Patents
Signal switching system

Info

Publication number
GB1108003A

GB1108003A
GB21318/65A
GB2131865A
GB1108003A
GB 1108003 A
GB1108003 A
GB 1108003A
GB 21318/65 A
GB21318/65 A
GB 21318/65A
GB 2131865 A
GB2131865 A
GB 2131865A
GB 1108003 A
GB1108003 A
GB 1108003A
Authority
GB
United Kingdom
Prior art keywords
tape
drum
store
module
data
Prior art date
1964-05-28
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
GB21318/65A
Inventor
Harry Gallager Kienzle
Roger Edward Swift
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.)

AT&T Corp

Original Assignee
Western Electric Co Inc
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.)
1964-05-28
Filing date
1965-05-20
Publication date
1968-03-27

1965-05-20
Application filed by Western Electric Co Inc
filed
Critical
Western Electric Co Inc

1968-03-27
Publication of GB1108003A
publication
Critical
patent/GB1108003A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

G—PHYSICS

G06—COMPUTING; CALCULATING OR COUNTING

G06F—ELECTRIC DIGITAL DATA PROCESSING

G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units

G06F13/14—Handling requests for interconnection or transfer

G06F13/20—Handling requests for interconnection or transfer for access to input/output bus

G06F13/22—Handling requests for interconnection or transfer for access to input/output bus using successive scanning, e.g. polling

G—PHYSICS

G06—COMPUTING; CALCULATING OR COUNTING

G06F—ELECTRIC DIGITAL DATA PROCESSING

G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements

G06F3/16—Sound input; Sound output

H—ELECTRICITY

H04—ELECTRIC COMMUNICATION TECHNIQUE

H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION

H04L12/00—Data switching networks

H04L12/54—Store-and-forward switching systems 

H—ELECTRICITY

H04—ELECTRIC COMMUNICATION TECHNIQUE

H04M—TELEPHONIC COMMUNICATION

H04M3/00—Automatic or semi-automatic exchanges

H04M3/42—Systems providing special services or facilities to subscribers

H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages

H04M3/53—Centralised arrangements for recording incoming messages, i.e. mailbox systems

H04M3/533—Voice mail systems

H—ELECTRICITY

H04—ELECTRIC COMMUNICATION TECHNIQUE

H04Q—SELECTING

H04Q3/00—Selecting arrangements

H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised

H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme

Abstract

1,108,003. Automatic exchange systems; data transmission systems. WESTERN ELECTRIC CO. Inc. 20 May, 1965 [28 May, 1964], No. 21318/65. Headings H4K and H4P. A central processor governs connections set up over a time division multiplex network for digital transmissions as well as connections set up over a space division network for speech, the digital transmissions being stored and forwarded at a later time if the wanted outlet is unavailable. The central processor is the one employed in the Bell System No. 1 Electronic Switching System, the programme being expanded to control the t.d.m. digital message network and the store and forward facilities. Interconnection between the space division network and the time division network can be set up by way of analogue to digital converters. While the lay-out of the processor and network units is indicated the description is mainly concerned with the organization of the message store and forward equipment which is provided on a modular basis for ease of expansion and increased reliability. Digital message store and forward equipment.- Up to eight store and forward modules may be provided having access from and to terminal circuits of the t.d.m. network. Each module contributes 8 magnetic drum units and 8 magnetic tape units for storage of digital messages. The drum and tape units of each module are available to the input/output junctions of all modules over separate drum and tape switching networks. Each module is served by one high speed line (40À8 kilobits/sec.) and up to 24 low speed lines (2À4 kilobits/sec.) terminated on input/output circuits selectively connectible to a common data bus in accordance with instructions provided by an address register. When a digital message arrives demanding an outlet which is busy the central processor, which has a complete idle-busy plan of all store and forward equipment, selects a module and gives it a sequence of instructions to assemble the message in blocks for transfer to a particular location of drum or tape storage. The serial bit stream received over the line is gathered into uniformly sized characters stripped of supervisory bits in the line. input circuit of the module. Whenever a complete character is formed, a call is made. for the service of the module control circuit where a random access ferrite plate store is used to assemble the characters into larger blocks. The control circuit deals with service demands as queued according to order of arrival and priority as indicated by data from the central processor and stored in the module. When sufficient characters have been serviced to complete a block in the assembler store, a demand is made for drum or tape transfer in accordance with address data supplied from the central processor; the demand being queued for service by a drum or tape transfer circuit. When a digital message is to be forwarded from store the central processor specifies what equipment and storage locations are involved and causes the drum or tape record to be read out to the assembler store in the control circuit of the chosen module from which the data blocks are broken down into characters, transmission of a character producing a request for the next, and exhaustion of a block producing a request for a further block. Whereas supervisory digits are stripped from the received stream, they are inserted in the transmitted stream. Data is recorded on a drum unit in bands of three tracks each so that read-in and write-out is handled over three corresponding stepping registers so as to merge or form the three data streams. For local transmissions 63 word blocks are handled while inter-office transmissions have art additional error detection block. Transfer of data from drum to tape is handled in 256 word blocks. To address the drum store requires identification of drum unit, band number, and angular position, together with instruction as to read or write and word block size. Data is recorded on a tape unit as a stream of parallel arrays of 6 bits plus a parity bit in the seven tracks of the tape. Tape to buffer register transfers can be made over high and low clipped channels, the high clipped channel being used so long as parity signals hold true and the low clip channel being substituted if the parity of the high clip signals is false. Each record on the tape is preceded by a catalogue number by which a search can be made for the tape position.

GB21318/65A
1964-05-28
1965-05-20
Signal switching system

Expired

GB1108003A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US371135A

US3403383A
(en)

1964-05-28
1964-05-28
Integrated analog-digital switching system with modular message store-and-forward facilities

Publications (1)

Publication Number
Publication Date

GB1108003A
true

GB1108003A
(en)

1968-03-27

Family
ID=23462624
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB21318/65A
Expired

GB1108003A
(en)

1964-05-28
1965-05-20
Signal switching system

Country Status (7)

Country
Link

US
(1)

US3403383A
(en)

BE
(1)

BE664056A
(en)

DE
(1)

DE1288108B
(en)

FR
(1)

FR1447259A
(en)

GB
(1)

GB1108003A
(en)

NL
(1)

NL143094B
(en)

SE
(1)

SE326988B
(en)

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2132446A
(en)

*

1982-12-01
1984-07-04
Standard Telephones Cables Ltd
Telecommunication exchange system

Families Citing this family (45)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

FR1535496A
(en)

*

1967-04-28
1968-08-09

Improvements to automatic telephone exchanges

US3533073A
(en)

*

1967-09-12
1970-10-06
Automatic Elect Lab
Digital control and memory arrangement,particularly for a communication switching system

US3536846A
(en)

*

1967-11-21
1970-10-27
Itt
Electronically controlled switching system using reversible ring translator

US3585306A
(en)

*

1968-05-16
1971-06-15
Bell Telephone Labor Inc
Tandem office time division switching system

NL154637B
(en)

*

1968-09-30
1977-09-15
Siemens Ag

TIME MULTIPLEX SYSTEM FOR SATELLITE CONNECTIONS WITH A LARGE NUMBER OF CHANNELS.

US3940568A
(en)

*

1968-12-02
1976-02-24
Siemens Aktiengesellschaft
Circuit arrangement for telephone exchange installations with central control means and a plurality of individual apparatuses having a common information communication line connecting the individual apparatus to the central control means

US3624613A
(en)

*

1969-06-06
1971-11-30
William B Smith
Common channel signaling arrangement

BE756071A
(en)

*

1969-09-12
1971-03-11
Siemens Ag

METHOD AND ARRANGEMENT OF SELECTION AND INTERROGATION OF CONNECTIONS IN AUTOMATIC CENTRAL DATA CENTER SYSTEMS WITH PROGRAMMED CENTRAL CONTROL

DE2034423C3
(en)

*

1970-07-10
1984-11-08
Siemens AG, 1000 Berlin und 8000 München

Procedure for troubleshooting a program-controlled switching system

FR2086709A5
(en)

*

1970-04-07
1971-12-31
Labo Cent Telecommunicat

JPS5038486B1
(en)

*

1970-08-15
1975-12-10

US3673335A
(en)

*

1970-08-24
1972-06-27
Bell Telephone Labor Inc
Switching of time division multiplex lines and analog trunks through telephone central offices

GB1348778A
(en)

*

1970-11-21
1974-03-20
Plessey Telecommunications Res
Data switching exchanges

US3730974A
(en)

*

1971-03-05
1973-05-01
Int Standard Electric Corp
Signalling network for automatic telecommunication switching system

NL7110444A
(en)

*

1971-07-29
1973-01-31
Philips Nv

BE792415A
(en)

*

1971-12-29
1973-03-30
Int E U A

LINE EXPLORATION SYSTEM IN A TELECOMMUNICATION CENTRAL

FR2211825B1
(en)

*

1972-12-21
1978-01-13
Constr Telephoniques

US3920895A
(en)

*

1974-03-29
1975-11-18
Xerox Corp
Communications systems having a selective facsimile output

US3920896A
(en)

*

1974-03-29
1975-11-18
Xerox Corp
Communications systems having a selective facsimile output

IT1016570B
(en)

*

1974-07-12
1977-06-20
Cselt Centro Studi Lab Telecom

GENERATION OF SPOKEN INFORMATION INSTRUCTED BY MEANS OF AN AUTOCOM DIVERSE TIME DIFFERENT NUMERIC TELEPHONE MUTER

US3944723A
(en)

*

1974-12-05
1976-03-16
General Electric Company
Station for power line access data system

JPS569078B2
(en)

*

1974-12-30
1981-02-27

USRE31182E
(en)

*

1976-11-10
1983-03-15
International Telephone And Telegraph Corporation
Packet-switched data communication system

JPS585541B2
(en)

*

1978-05-08
1983-01-31
富士通株式会社

Packet transmission method

US4156931A
(en)

*

1978-05-25
1979-05-29
Digital Equipment Corporation
Digital data communications device with standard option connection

US4245303A
(en)

*

1978-10-25
1981-01-13
Digital Equipment Corporation
Memory for data processing system with command and data buffering

DE2953255A1
(en)

*

1978-12-21
1980-12-18
Western Electric Co

DATA STORAGE AND RETRIEVAL STRUCTURE FOR A MESSAGE STORAGE SYSTEM

US4221933A
(en)

*

1978-12-21
1980-09-09
Cornell Ronald G
Data storage and retrieval structure for a message storage system

JPS5665309A
(en)

*

1979-10-26
1981-06-03
Sony Corp
Time-axis converter

US4602129A
(en)

*

1979-11-26
1986-07-22
Vmx, Inc.
Electronic audio communications system with versatile message delivery

US4274357A
(en)

*

1979-11-26
1981-06-23
Surf-Jet Corporation
Power operated surfboard

US4652700A
(en)

*

1979-11-26
1987-03-24
Vmx, Inc.
Electronic audio communications system with versatile user accessibility

US4580012A
(en)

*

1979-11-26
1986-04-01
Vmx, Inc.
Electronic audio communications system with automatic user access features

US4371752A
(en)

*

1979-11-26
1983-02-01
Ecs Telecommunications, Inc.
Electronic audio communication system

US4581486A
(en)

*

1979-11-26
1986-04-08
Vmx, Inc.
Electronic audio communications system with user accessible message groups

US4446336A
(en)

*

1981-02-09
1984-05-01
Bell Telephone Laboratories, Incorporated
Method for recording and updating stored messages in an announcement system

US4523055A
(en)

*

1983-11-25
1985-06-11
Pitney Bowes Inc.
Voice/text storage and retrieval system

US4670628A
(en)

*

1984-04-19
1987-06-02
Boratgis James P
Reprogrammable call forwarding device

US4782509A
(en)

*

1984-08-27
1988-11-01
Cognitronics Corporation
Apparatus and method for obtaining information in a wide-area telephone system with multiple local exchanges and multiple information storage sites

US5052038A
(en)

*

1984-08-27
1991-09-24
Cognitronics Corporation
Apparatus and method for obtaining information in a wide-area telephone system with digital data transmission between a local exchange and an information storage site

GB2201862B
(en)

*

1987-02-10
1990-11-21
Dictaphone Corp
Digital dictation system with voice mail capability

US5179627A
(en)

*

1987-02-10
1993-01-12
Dictaphone Corporation
Digital dictation system

US4967408A
(en)

*

1989-03-30
1990-10-30
Northern Telecom Limited
Telephone exchange including service feature apparatus

FR2760213B1
(en)

*

1997-03-03
1999-05-14
Valeo Climatisation

DEVICE FOR CONTROLLING A PLANT, PARTICULARLY FOR HEATING, VENTILATION AND / OR AIR CONDITIONING OF A MOTOR VEHICLE, WITH A SINGLE CONTROLLER

CA2265394A1
(en)

*

1999-03-12
2000-09-12
Paul A. Hanrieder
Digital switching system with shared analog line

Family Cites Families (10)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

BE551314A
(en)

*

1953-01-23

BE571788A
(en)

*

1957-10-07

NL256694A
(en)

*

1959-10-09

US3087010A
(en)

*

1960-04-27
1963-04-23
Western Union Telegraph Co
Automatic telegraph switching system

US3223976A
(en)

*

1961-05-26
1965-12-14
Bell Telephone Labor Inc
Data communication system

US3241125A
(en)

*

1962-05-22
1966-03-15
Ibm
Memory allocation

US3310780A
(en)

*

1962-10-15
1967-03-21
Ibm
Character assembly and distribution apparatus

US3302182A
(en)

*

1963-10-03
1967-01-31
Burroughs Corp
Store and forward message switching system utilizing a modular data processor

US3293618A
(en)

*

1963-10-04
1966-12-20
Rca Corp
Communications accumulation and distribution

US3334191A
(en)

*

1964-10-26
1967-08-01
Itt
Electronic queuing system having recall, intercept and priority means

0

DE
DENDAT1288108D
patent/DE1288108B/en
active
Pending

1964

1964-05-28
US
US371135A
patent/US3403383A/en
not_active
Expired – Lifetime

1965

1965-05-17
BE
BE664056D
patent/BE664056A/xx
unknown

1965-05-20
GB
GB21318/65A
patent/GB1108003A/en
not_active
Expired

1965-05-25
NL
NL656506624A
patent/NL143094B/en
not_active
IP Right Cessation

1965-05-25
FR
FR18426A
patent/FR1447259A/en
not_active
Expired

1965-05-26
SE
SE06966/65A
patent/SE326988B/xx
unknown

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2132446A
(en)

*

1982-12-01
1984-07-04
Standard Telephones Cables Ltd
Telecommunication exchange system

Also Published As

Publication number
Publication date

NL6506624A
(en)

1965-11-29

FR1447259A
(en)

1966-07-29

DE1288108B
(en)

1969-01-30

US3403383A
(en)

1968-09-24

SE326988B
(en)

1970-08-10

BE664056A
(en)

1965-09-16

NL143094B
(en)

1974-08-15

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