GB1241340A - Circuit for a subscriber's set - Google Patents

Circuit for a subscriber's set

Info

Publication number
GB1241340A
GB1241340A GB5001168A GB5001168A GB1241340A GB 1241340 A GB1241340 A GB 1241340A GB 5001168 A GB5001168 A GB 5001168A GB 5001168 A GB5001168 A GB 5001168A GB 1241340 A GB1241340 A GB 1241340A
Authority
GB
United Kingdom
Prior art keywords
microphone
oct
series
balancing network
linear resistors
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
GB5001168A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1241340A publication Critical patent/GB1241340A/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
    • H04M1/58—Anti-side-tone circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
GB5001168A 1967-10-25 1968-10-22 Circuit for a subscriber's set Expired GB1241340A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6714458A NL6714458A (xx) 1967-10-25 1967-10-25

Publications (1)

Publication Number Publication Date
GB1241340A true GB1241340A (en) 1971-08-04

Family

ID=19801549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5001168A Expired GB1241340A (en) 1967-10-25 1968-10-22 Circuit for a subscriber's set

Country Status (7)

Country Link
AT (1) AT284215B (xx)
BE (1) BE722791A (xx)
DK (1) DK126289B (xx)
FR (1) FR1587239A (xx)
GB (1) GB1241340A (xx)
NL (1) NL6714458A (xx)
SE (1) SE348350B (xx)

Also Published As

Publication number Publication date
NL6714458A (xx) 1969-04-29
BE722791A (xx) 1969-04-23
DK126289B (da) 1973-06-25
SE348350B (xx) 1972-08-28
AT284215B (de) 1970-09-10
DE1762953B2 (de) 1976-01-15
FR1587239A (xx) 1970-03-13
DE1762953A1 (de) 1970-12-03

Similar Documents

Publication Publication Date Title
US3859462A (en) Arrangement to control a function at a remote location
GB907466A (en) Improvements in or relating to signalling apparatus for subscriber's stations in a telephone installation
GB1241340A (en) Circuit for a subscriber's set
ES8103623A1 (es) Perfeccionamientos en los circuitos interfase para teclados electronicos de aparatos telefonicos
US3061681A (en) Communication system information transfer circuit
US3366738A (en) Time division transhybrid echo suppressor
US3843943A (en) Coupling circuit for telephone line and the like
DE2960124D1 (en) Circuit arrangement for the ungrounded transmission of signals across points of isolation in communication systems
US3370124A (en) Receiving device with signal voltage converter
GB1021915A (en) A frequency switching device
GB863642A (en) Improvements in or relating to telephone sub-sets
ES370990A1 (es) Disposicion de circuito para regular el equivalente de re- ferencia de transmision y recepcion de un equipo de abonado en un sistema telefonico.
CA1207475A (en) Telephone line interface
GB691824A (en) Improvements in pulse-code modulators for use in electric signalling systems
GB863706A (en) Improvements in or relating to telephone sub-sets
GB1176434A (en) Ladder Network Filter Arrangements
GB765112A (en) Improvements relating to telephone systems
GB862377A (en) Improvements relating to communication systems
IT1066973B (it) Perfezionamento negli apparecchi telefonici
GB1287021A (en) Improvements in attenuator circuits
GB1348476A (en) Telephone subscriberstation circuit arrangements
GB965027A (en) Intelligence transmission systems
GB1360500A (en) Telephone instruments
GB706784A (en) Improvements in or relating to telephone subscriber sets
GB868054A (en) Improvements in or relating to telephone sub-sets