GB1020404A – Improvements in or relating to telephone systems
– Google Patents
GB1020404A – Improvements in or relating to telephone systems
– Google Patents
Improvements in or relating to telephone systems
Info
Publication number
GB1020404A
GB1020404A
GB22874/64A
GB2287464A
GB1020404A
GB 1020404 A
GB1020404 A
GB 1020404A
GB 22874/64 A
GB22874/64 A
GB 22874/64A
GB 2287464 A
GB2287464 A
GB 2287464A
GB 1020404 A
GB1020404 A
GB 1020404A
Authority
GB
United Kingdom
Prior art keywords
relay
code
brings
dialling
relays
Prior art date
1963-06-07
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
GB22874/64A
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 and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
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.)
1963-06-07
Filing date
1964-06-03
Publication date
1966-02-16
1964-06-03
Application filed by Siemens and Halske AG, Siemens AG
filed
Critical
Siemens and Halske AG
1966-02-16
Publication of GB1020404A
publication
Critical
patent/GB1020404A/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
Abstract
1,020,404. Automatic exchange systems. SIEMENS & HALSKE A.G. June 3, 1964 [June 7, 1963], No. 22874/64. Heading H4K. In an exchange having first subscribers provided with D.C. impulse transmitters and second subscribers provided with key-senders for code dialling, a transmission bridge which may be taken into use by either type of subscriber comprises an impulsing relay which brings up a delayed action dialling relay during reception of D.C. impulses and brings up an alternative relay which controls a code receiver during reception of code dialling signals. A calling line is connected through finder K to a transmission bridge Ue whereupon relays S and C come-up. Assuming that the caller is of the first type then during the first impulse of each train relay S falls back and brings-up slow-tooperate relay V (relay CA is momentarily energized but falls back when V operates since rectifier Gl1 is then reverse biased). Relays V and C hold for the duration of each train, while S repeats the impulses to a register WU. Similarly if a subscriber of the second type is calling then he also breaks the line loop during signalling so as to release S and bring up CA but in this case the accompanying code signal (two successive signals on one or both line wires) is received in a code receiver WE whereby the corresponding relays A to D comes up followed by CB. The latter, prevents V from operating, holds C and causes CA to remain up. The code signals are translated and may be stored in the register Wu.
GB22874/64A
1963-06-07
1964-06-03
Improvements in or relating to telephone systems
Expired
GB1020404A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DES85581A
DE1225252B
(en)
1963-06-07
1963-06-07
Circuit arrangement for telephone systems with key-operated code and number switch selection
Publications (1)
Publication Number
Publication Date
GB1020404A
true
GB1020404A
(en)
1966-02-16
Family
ID=7512445
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB22874/64A
Expired
GB1020404A
(en)
1963-06-07
1964-06-03
Improvements in or relating to telephone systems
Country Status (9)
Country
Link
US
(1)
US3376391A
(en)
BE
(2)
BE648902A
(en)
CH
(1)
CH421202A
(en)
DE
(1)
DE1225252B
(en)
FR
(1)
FR1396886A
(en)
GB
(1)
GB1020404A
(en)
LU
(1)
LU46235A1
(en)
NL
(1)
NL6406397A
(en)
SE
(1)
SE313084B
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3315039A
(en)
*
1963-09-30
1967-04-18
Bell Telephone Labor Inc
Telephone signaling conversion circuit for pulses and tones
Families Citing this family (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3558825A
(en)
*
1967-05-09
1971-01-26
Stromberg Carlson Corp
Reverting call arrangement
BE758187A
(en)
*
1969-11-13
1971-04-29
Cit Alcatel
SIGNAL TRANSMITTING DEVICE IN PARTICULAR FOR NUMBERING KEYPAD
US3917913A
(en)
*
1974-06-03
1975-11-04
Ibm
Telephone calling signal translating circuitry
US4048450A
(en)
*
1974-10-25
1977-09-13
Bernard Jean Michel
Trunk circuit traffic analyzer
US3961141A
(en)
*
1974-12-19
1976-06-01
Tel-Tone Corporation
Stop time-out until after first DTMF digit dialed circuit
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3133155A
(en)
*
1960-09-27
1964-05-12
Bell Telephone Labor Inc
Signal converter circuit
US3259697A
(en)
*
1962-11-28
1966-07-05
Bell Telephone Labor Inc
Telephone signaling system
0
BE
BE648967D
patent/BE648967A/xx
unknown
1963
1963-06-07
DE
DES85581A
patent/DE1225252B/en
active
Pending
1964
1964-05-11
US
US366275A
patent/US3376391A/en
not_active
Expired – Lifetime
1964-05-29
FR
FR976410A
patent/FR1396886A/en
not_active
Expired
1964-06-03
LU
LU46235D
patent/LU46235A1/xx
unknown
1964-06-03
GB
GB22874/64A
patent/GB1020404A/en
not_active
Expired
1964-06-04
CH
CH728464A
patent/CH421202A/en
unknown
1964-06-05
BE
BE648902D
patent/BE648902A/xx
unknown
1964-06-05
SE
SE6902/64A
patent/SE313084B/xx
unknown
1964-06-05
NL
NL6406397A
patent/NL6406397A/xx
unknown
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3315039A
(en)
*
1963-09-30
1967-04-18
Bell Telephone Labor Inc
Telephone signaling conversion circuit for pulses and tones
Also Published As
Publication number
Publication date
DE1225252B
(en)
1966-09-22
US3376391A
(en)
1968-04-02
SE313084B
(en)
1969-08-04
BE648967A
(en)
BE648902A
(en)
1964-12-07
LU46235A1
(en)
1965-12-02
FR1396886A
(en)
1965-04-23
NL6406397A
(en)
1964-12-08
CH421202A
(en)
1966-09-30
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None