GB2135854B - Line-powered modem - Google Patents

Line-powered modem

Info

Publication number
GB2135854B
GB2135854B GB08402639A GB8402639A GB2135854B GB 2135854 B GB2135854 B GB 2135854B GB 08402639 A GB08402639 A GB 08402639A GB 8402639 A GB8402639 A GB 8402639A GB 2135854 B GB2135854 B GB 2135854B
Authority
GB
United Kingdom
Prior art keywords
line
powered modem
modem
powered
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
GB08402639A
Other versions
GB8402639D0 (en
GB2135854A (en
Inventor
Robert James Redding
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.)
Individual
Original Assignee
Individual
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 GB838303631A external-priority patent/GB8303631D0/en
Priority claimed from GB838326997A external-priority patent/GB8326997D0/en
Application filed by Individual filed Critical Individual
Priority to GB08402639A priority Critical patent/GB2135854B/en
Publication of GB8402639D0 publication Critical patent/GB8402639D0/en
Publication of GB2135854A publication Critical patent/GB2135854A/en
Application granted granted Critical
Publication of GB2135854B publication Critical patent/GB2135854B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
GB08402639A 1983-02-10 1984-02-01 Line-powered modem Expired GB2135854B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08402639A GB2135854B (en) 1983-02-10 1984-02-01 Line-powered modem

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB838303631A GB8303631D0 (en) 1983-02-10 1983-02-10 Ultra safe modem
GB838326997A GB8326997D0 (en) 1983-02-10 1983-10-08 Modems
GB08402639A GB2135854B (en) 1983-02-10 1984-02-01 Line-powered modem

Publications (3)

Publication Number Publication Date
GB8402639D0 GB8402639D0 (en) 1984-03-07
GB2135854A GB2135854A (en) 1984-09-05
GB2135854B true GB2135854B (en) 1986-04-23

Family

ID=27261962

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08402639A Expired GB2135854B (en) 1983-02-10 1984-02-01 Line-powered modem

Country Status (1)

Country Link
GB (1) GB2135854B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2627339B1 (en) * 1988-02-11 1994-05-20 Matra Communication INTEGRATED CIRCUIT AND TELEPHONE TELEPHONE APPARATUS WITH APPLICATION
DE59712509D1 (en) * 1997-02-10 2006-01-12 Siemens Ag voltage supplier

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2216733B1 (en) * 1973-01-31 1978-05-12 Labo Cent Telecommunicat
GB1471925A (en) * 1974-04-09 1977-04-27 Hewlett Packard Ltd Transmission line terminations
GB1602130A (en) * 1978-05-12 1981-11-04 Plessey Co Ltd Telecommunication line circuits
NL7903663A (en) * 1979-05-10 1980-11-12 Philips Nv AMPLIFIER FOR APPLICATION IN A LINE CIRCUIT.
CA1154185A (en) * 1981-01-23 1983-09-20 Patrick R. Beirne Subscriber line interface circuit

Also Published As

Publication number Publication date
GB8402639D0 (en) 1984-03-07
GB2135854A (en) 1984-09-05

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)
747B Proceeding under sect. 47(1) patents act 1977
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
747A Proceeding under section 47 patents act 1977
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)
PE20 Patent expired after termination of 20 years

Effective date: 20040131