GB1205307A – Improvements in or relating to telecommunications systems
– Google Patents
GB1205307A – Improvements in or relating to telecommunications systems
– Google Patents
Improvements in or relating to telecommunications systems
Info
Publication number
GB1205307A
GB1205307A
GB4939768A
GB4939768A
GB1205307A
GB 1205307 A
GB1205307 A
GB 1205307A
GB 4939768 A
GB4939768 A
GB 4939768A
GB 4939768 A
GB4939768 A
GB 4939768A
GB 1205307 A
GB1205307 A
GB 1205307A
Authority
GB
United Kingdom
Prior art keywords
data
bus
equipments
control circuit
stored
Prior art date
1967-12-01
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
GB4939768A
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.)
Siemens AG
Original Assignee
Siemens 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.)
1967-12-01
Filing date
1968-10-18
Publication date
1970-09-16
1967-12-01
Priority claimed from AT1088667A
external-priority
patent/AT273242B/en
1968-10-18
Application filed by Siemens AG
filed
Critical
Siemens AG
1970-09-16
Publication of GB1205307A
publication
Critical
patent/GB1205307A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
H04Q3/54508—Configuration, initialisation
H04Q3/54533—Configuration data, translation, passwords, databases
Abstract
1,205,307. Automatic exchange systems. SIEMENS A.G. 18 Oct., 1968 [1 Dec., 1967; 26 July, 1968], No. 49397/68. Heading H4K. In a stored programme controlled exchange in which the peripheral equipments are arranged in groups each of which has its own control circuit, i.e. effectively a plurality of centrally controlled PBXs, communication between the equipments and the control circuit is effected over a common bus which starts and terminates in the control circuit and to which the equipments are selectively connectible. The ends of the bus are connected by a comparator so that information sent into the bus can be compared with information received therefrom whereby a fault signal can be generated in the event of any discrepancy. The system forms part of that described in Specifications 1,205,305, 1,205,306, 1,205,308, 1,205,309 and 1,205,301. The individual equipments JG1-JGn each contain a plurality of senders (e.g. contacts such as s1) and receivers (e.g. relays such as E1), the equipments being selectively connectible to a space or frequency division multiplex bus U11 by relays Mo1 to Mon under the control of an identifier Jd in the group control circuit AS. Serial data from a central control is stored in sender SS prior to despatch in parallel form over bus U11 to the selected equipment. The accuracy of the data after it has traversed the bus and been received back in receiver ES is determined with the aid of comparator Vg. Parallel data from an equipment is converted into serial data by receiver ES for subsequent transmission to central control and is temporarily stored in VS. When data sending from the equipment stops, the stored data in VS is sent round the bus so that the efficacy of the latter can be checked. As an alternative to comparing the whole of the transmitted data with the received data, the parity of the former data may be determined and stored for later comparison with the parity of the received data thereby reducing the duration of the connection with central control and/or reducing the amount of storage space required in the control circuit (Fig. 4, not shown).
GB4939768A
1967-12-01
1968-10-18
Improvements in or relating to telecommunications systems
Expired
GB1205307A
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
AT1088667A
AT273242B
(en)
1967-12-01
1967-12-01
Circuit arrangement for telecommunications systems, in particular telephone switching systems, with individual and shared devices
AT732668A
AT290632B
(en)
1967-12-01
1968-07-26
Circuit arrangement for telecommunications systems, in particular telephone switching systems, with individual and shared devices
Publications (1)
Publication Number
Publication Date
GB1205307A
true
GB1205307A
(en)
1970-09-16
Family
ID=37734403
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4939768A
Expired
GB1205307A
(en)
1967-12-01
1968-10-18
Improvements in or relating to telecommunications systems
Country Status (8)
Country
Link
AT
(1)
AT290632B
(en)
BE
(1)
BE724700A
(en)
CH
(1)
CH486815A
(en)
DE
(1)
DE1811533B2
(en)
FR
(1)
FR1599097A
(en)
GB
(1)
GB1205307A
(en)
NL
(1)
NL6816490A
(en)
SE
(1)
SE333755B
(en)
Families Citing this family (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS61264835A
(en)
*
1985-05-17
1986-11-22
Kawamura Denki Sangyo Kk
Optical fiber data link system
1968
1968-07-26
AT
AT732668A
patent/AT290632B/en
not_active
IP Right Cessation
1968-10-18
GB
GB4939768A
patent/GB1205307A/en
not_active
Expired
1968-11-19
NL
NL6816490A
patent/NL6816490A/xx
unknown
1968-11-28
DE
DE19681811533
patent/DE1811533B2/en
not_active
Withdrawn
1968-11-29
BE
BE724700D
patent/BE724700A/xx
unknown
1968-11-29
FR
FR1599097D
patent/FR1599097A/fr
not_active
Expired
1968-11-29
CH
CH1789868A
patent/CH486815A/en
not_active
IP Right Cessation
1968-12-02
SE
SE1645768A
patent/SE333755B/xx
unknown
Also Published As
Publication number
Publication date
FR1599097A
(en)
1970-07-15
AT290632B
(en)
1971-06-11
DE1811533A1
(en)
1969-08-07
CH486815A
(en)
1970-02-28
NL6816490A
(en)
1969-06-03
BE724700A
(en)
1969-05-29
SE333755B
(en)
1971-03-29
DE1811533B2
(en)
1971-04-01
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Legal Events
Date
Code
Title
Description
1971-01-27
PS
Patent sealed
1980-06-04
PCNP
Patent ceased through non-payment of renewal fee
