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
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Priority date
Publication date
Assignee
Title
FR1535496A
(en)
*
1967-04-28
1968-08-09
Improvements to automatic telephone exchanges
US3533073A
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*
1967-09-12
1970-10-06
Automatic Elect Lab
Digital control and memory arrangement,particularly for a communication switching system
US3536846A
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*
1967-11-21
1970-10-27
Itt
Electronically controlled switching system using reversible ring translator
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1968-05-16
1971-06-15
Bell Telephone Labor Inc
Tandem office time division switching system
NL154637B
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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
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*
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
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*
1970-07-10
1984-11-08
Siemens AG, 1000 Berlin und 8000 München
Procedure for troubleshooting a program-controlled switching system
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(en)
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1970-04-07
1971-12-31
Labo Cent Telecommunicat
JPS5038486B1
(en)
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1970-08-15
1975-12-10
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*
1970-08-24
1972-06-27
Bell Telephone Labor Inc
Switching of time division multiplex lines and analog trunks through telephone central offices
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*
1970-11-21
1974-03-20
Plessey Telecommunications Res
Data switching exchanges
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1971-03-05
1973-05-01
Int Standard Electric Corp
Signalling network for automatic telecommunication switching system
NL7110444A
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*
1971-07-29
1973-01-31
Philips Nv
BE792415A
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1971-12-29
1973-03-30
Int E U A
LINE EXPLORATION SYSTEM IN A TELECOMMUNICATION CENTRAL
FR2211825B1
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*
1972-12-21
1978-01-13
Constr Telephoniques
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*
1974-03-29
1975-11-18
Xerox Corp
Communications systems having a selective facsimile output
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*
1974-03-29
1975-11-18
Xerox Corp
Communications systems having a selective facsimile output
IT1016570B
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*
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
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*
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
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*
1979-11-26
1983-02-01
Ecs Telecommunications, Inc.
Electronic audio communication system
US4581486A
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*
1979-11-26
1986-04-08
Vmx, Inc.
Electronic audio communications system with user accessible message groups
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*
1981-02-09
1984-05-01
Bell Telephone Laboratories, Incorporated
Method for recording and updating stored messages in an announcement system
US4523055A
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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
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*
1989-03-30
1990-10-30
Northern Telecom Limited
Telephone exchange including service feature apparatus
FR2760213B1
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*
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
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1999-03-12
2000-09-12
Paul A. Hanrieder
Digital switching system with shared analog line
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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
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(en)
*
1961-05-26
1965-12-14
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Data communication system
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(en)
*
1962-05-22
1966-03-15
Ibm
Memory allocation
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Character assembly and distribution apparatus
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(en)
*
1963-10-03
1967-01-31
Burroughs Corp
Store and forward message switching system utilizing a modular data processor
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1966-12-20
Rca Corp
Communications accumulation and distribution
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(en)
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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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