GB2167920B - Telephone circuit - Google Patents

Telephone circuit

Info

Publication number
GB2167920B
GB2167920B GB08430047A GB8430047A GB2167920B GB 2167920 B GB2167920 B GB 2167920B GB 08430047 A GB08430047 A GB 08430047A GB 8430047 A GB8430047 A GB 8430047A GB 2167920 B GB2167920 B GB 2167920B
Authority
GB
United Kingdom
Prior art keywords
telephone circuit
telephone
circuit
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
GB08430047A
Other versions
GB8430047D0 (en
GB2167920A (en
Inventor
Frederick John Howett
John Michael Flavin
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.)
STC PLC
Original Assignee
STC PLC
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
Application filed by STC PLC filed Critical STC PLC
Priority to GB08430047A priority Critical patent/GB2167920B/en
Publication of GB8430047D0 publication Critical patent/GB8430047D0/en
Publication of GB2167920A publication Critical patent/GB2167920A/en
Application granted granted Critical
Publication of GB2167920B publication Critical patent/GB2167920B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/7385—Programmable or microprocessor-controlled

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Signal Processing (AREA)
  • Communication Control (AREA)
GB08430047A 1984-11-28 1984-11-28 Telephone circuit Expired GB2167920B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08430047A GB2167920B (en) 1984-11-28 1984-11-28 Telephone circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08430047A GB2167920B (en) 1984-11-28 1984-11-28 Telephone circuit

Publications (3)

Publication Number Publication Date
GB8430047D0 GB8430047D0 (en) 1985-01-09
GB2167920A GB2167920A (en) 1986-06-04
GB2167920B true GB2167920B (en) 1988-12-21

Family

ID=10570405

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08430047A Expired GB2167920B (en) 1984-11-28 1984-11-28 Telephone circuit

Country Status (1)

Country Link
GB (1) GB2167920B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3725329A1 (en) * 1987-07-30 1989-02-09 Siemens Ag CIRCUIT ARRANGEMENT FOR A DIGITAL TELEPHONE STATION
CA1280229C (en) * 1988-04-29 1991-02-12 Michael Jamil Wakim Infrared hookswitch for a telephone
DE4128686A1 (en) * 1991-08-29 1993-03-04 Telefonbau & Normalzeit Gmbh Cooperating working procedure for telecommunications terminal and personal computer - transmitting computer signal in identical structure, as delivered by terminal control, to terminal testing device
NZ250812A (en) * 1993-02-27 1996-09-25 Alcatel Australia Voice controlled data memory and input/output card
DE4306200A1 (en) * 1993-02-27 1994-09-01 Sel Alcatel Ag Voice-controlled telephone device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2917570B1 (en) * 1979-04-30 1980-05-14 Telefonbau & Normalzeit Gmbh Circuit arrangement for a digital telephone subscriber station
GB2105950B (en) * 1981-08-06 1985-09-25 Standard Telephones Cables Ltd Telephone data interface
CA1169597A (en) * 1981-09-11 1984-06-19 Gordon D. Benning Home communications and control system
IT1161452B (en) * 1983-01-06 1987-03-18 Olivetti & Co Spa CALCULATION MACHINE WITH TELECOMMUNICATION DEVICES
JPS59143449A (en) * 1983-02-03 1984-08-17 Sharp Corp Data transmission processor

Also Published As

Publication number Publication date
GB8430047D0 (en) 1985-01-09
GB2167920A (en) 1986-06-04

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee