GB1391247A - Circuit arrangement for a telephone subset - Google Patents

Circuit arrangement for a telephone subset

Info

Publication number
GB1391247A
GB1391247A GB4303173A GB4303173A GB1391247A GB 1391247 A GB1391247 A GB 1391247A GB 4303173 A GB4303173 A GB 4303173A GB 4303173 A GB4303173 A GB 4303173A GB 1391247 A GB1391247 A GB 1391247A
Authority
GB
United Kingdom
Prior art keywords
amplifier
receiver
sept
incorporating
output
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
GB4303173A
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB1391247A publication Critical patent/GB1391247A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
GB4303173A 1972-09-20 1973-09-13 Circuit arrangement for a telephone subset Expired GB1391247A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722246022 DE2246022A1 (de) 1972-09-20 1972-09-20 Schaltungsanordnung fuer einen fernsprechapparat

Publications (1)

Publication Number Publication Date
GB1391247A true GB1391247A (en) 1975-04-16

Family

ID=5856796

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4303173A Expired GB1391247A (en) 1972-09-20 1973-09-13 Circuit arrangement for a telephone subset

Country Status (3)

Country Link
DE (1) DE2246022A1 (de)
FR (1) FR2200713B3 (de)
GB (1) GB1391247A (de)

Also Published As

Publication number Publication date
DE2246022A1 (de) 1974-03-28
FR2200713A1 (de) 1974-04-19
FR2200713B3 (de) 1976-08-20

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee