GB1483745A - Telephone systems - Google Patents

Telephone systems

Info

Publication number
GB1483745A
GB1483745A GB50910/74A GB5091074A GB1483745A GB 1483745 A GB1483745 A GB 1483745A GB 50910/74 A GB50910/74 A GB 50910/74A GB 5091074 A GB5091074 A GB 5091074A GB 1483745 A GB1483745 A GB 1483745A
Authority
GB
United Kingdom
Prior art keywords
digit
gate
signal
unit
evaluation
Prior art date
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
GB50910/74A
Other languages
English (en)
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 Corp
Original Assignee
Siemens Corp
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.)
Filing date
Publication date
Priority claimed from DE19732359829 external-priority patent/DE2359829C3/de
Application filed by Siemens Corp filed Critical Siemens Corp
Publication of GB1483745A publication Critical patent/GB1483745A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Telephonic Communication Services (AREA)
  • Interface Circuits In Exchanges (AREA)
GB50910/74A 1973-11-30 1974-11-25 Telephone systems Expired GB1483745A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732359829 DE2359829C3 (de) 1973-11-30 Schaltungsanordnung zur Gleichzeitigkeitsfeststellung vor Übertragung von zu bewertenden Kennziffern zum Wahlbewertungsfeld einer Fernsprechanlage, insbesondere Fernsprechnebenstellenanlage

Publications (1)

Publication Number Publication Date
GB1483745A true GB1483745A (en) 1977-08-24

Family

ID=5899572

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50910/74A Expired GB1483745A (en) 1973-11-30 1974-11-25 Telephone systems

Country Status (11)

Country Link
US (1) US3970800A (enExample)
AT (1) AT336088B (enExample)
BE (1) BE822784A (enExample)
CH (1) CH584491A5 (enExample)
DK (1) DK140778B (enExample)
FR (1) FR2253337B1 (enExample)
GB (1) GB1483745A (enExample)
IT (1) IT1026607B (enExample)
LU (1) LU71384A1 (enExample)
NL (1) NL7415298A (enExample)
SE (1) SE395812B (enExample)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3626106A (en) * 1969-08-27 1971-12-07 Clarence A Greening Apparatus and method for the selective ringing of telephones

Also Published As

Publication number Publication date
CH584491A5 (enExample) 1977-01-31
DE2359829B2 (de) 1975-09-18
DK140778C (enExample) 1980-04-14
US3970800A (en) 1976-07-20
DE2359829A1 (de) 1975-06-12
FR2253337A1 (enExample) 1975-06-27
FR2253337B1 (enExample) 1980-03-21
AT336088B (de) 1977-04-12
NL7415298A (nl) 1975-06-03
SE395812B (sv) 1977-08-22
ATA860074A (de) 1976-08-15
SE7415018L (enExample) 1975-05-02
LU71384A1 (enExample) 1975-06-11
BE822784A (fr) 1975-05-29
DK618174A (enExample) 1975-07-14
IT1026607B (it) 1978-10-20
DK140778B (da) 1979-11-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee