MY8800157A - Subscriber line audio processing circuit apparatus - Google Patents

Subscriber line audio processing circuit apparatus

Info

Publication number
MY8800157A
MY8800157A MY1988157A MY8800157A MY8800157A MY 8800157 A MY8800157 A MY 8800157A MY 1988157 A MY1988157 A MY 1988157A MY 8800157 A MY8800157 A MY 8800157A MY 8800157 A MY8800157 A MY 8800157A
Authority
MY
Malaysia
Prior art keywords
processing circuit
subscriber line
audio processing
circuit apparatus
line audio
Prior art date
Application number
MY1988157A
Other languages
English (en)
Inventor
Russel Jay Apfel
Magnusson
Gunnar Bengt
Sture Goesta Roos
Lars Tommy Edward Svensson
Original Assignee
Telefonaktiebolaget Lm Erricsson
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 Telefonaktiebolaget Lm Erricsson filed Critical Telefonaktiebolaget Lm Erricsson
Publication of MY8800157A publication Critical patent/MY8800157A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H04B14/046—Systems or methods for reducing noise or bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Analogue/Digital Conversion (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Road Signs Or Road Markings (AREA)
  • Telephonic Communication Services (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Communication Control (AREA)
  • Alarm Systems (AREA)
MY1988157A 1980-06-18 1988-12-31 Subscriber line audio processing circuit apparatus MY8800157A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1980/000754 WO1981003728A1 (en) 1980-06-18 1980-06-18 Subscriber line audio processing circuit apparatus

Publications (1)

Publication Number Publication Date
MY8800157A true MY8800157A (en) 1988-12-31

Family

ID=22154396

Family Applications (1)

Application Number Title Priority Date Filing Date
MY1988157A MY8800157A (en) 1980-06-18 1988-12-31 Subscriber line audio processing circuit apparatus

Country Status (21)

Country Link
EP (1) EP0054024B1 (es)
JP (1) JPH0477493B2 (es)
KR (1) KR850000140B1 (es)
AU (1) AU536210B2 (es)
BR (1) BR8009085A (es)
CA (1) CA1165029A (es)
CH (1) CH655213A5 (es)
DE (1) DE3070437D1 (es)
DK (1) DK161285C (es)
DZ (1) DZ346A1 (es)
ES (1) ES501903A0 (es)
FI (1) FI74848C (es)
FR (1) FR2485304B1 (es)
HU (1) HU185634B (es)
IE (1) IE51778B1 (es)
IN (1) IN155721B (es)
IT (1) IT1167795B (es)
MY (1) MY8800157A (es)
NO (1) NO154030C (es)
WO (1) WO1981003728A1 (es)
YU (1) YU44960B (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4592046A (en) * 1983-03-13 1986-05-27 Iwasaki Tsushinki Kabushiki Kaisha Subscriber's circuit for time division switching system
EP0122594A3 (en) * 1983-04-18 1986-09-10 International Standard Electric Corporation Line circuit with echo compensation
US4538269A (en) * 1983-04-18 1985-08-27 International Telephone And Telegraph Corporation Programmable coding and decoding arrangement
FR2548851B1 (fr) * 1983-07-07 1986-11-14 Electricite De France Procede et installation d'analyse et de restitution de signal a echantillonnage et interpolation
SE457923B (sv) * 1987-06-15 1989-02-06 Ellemtel Utvecklings Ab Anordning foer att aastadkomma en styrbar linjeavslutningsimpedans
JPS6429135A (en) * 1987-07-24 1989-01-31 Nec Corp Coder/decoder
US5694465A (en) * 1995-03-16 1997-12-02 Advanced Micro Devices, Inc. Integrated ringer for short telephone lines

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3934099A (en) * 1974-08-16 1976-01-20 Bell Telephone Laboratories, Incorporated Bias, feedback and network arrangements for hybrid circuits
NL168669C (nl) * 1974-09-16 1982-04-16 Philips Nv Interpolerend digitaal filter met ingangsbuffer.
US4145747A (en) * 1975-03-25 1979-03-20 Kokusai Denshin Denwa Kabushiki Kaisha Method for establishing a tap coefficient of an adaptive automatic equalizer
US4020332A (en) * 1975-09-24 1977-04-26 Bell Telephone Laboratories, Incorporated Interpolation-decimation circuit for increasing or decreasing digital sampling frequency
US4038495A (en) * 1975-11-14 1977-07-26 Rockwell International Corporation Speech analyzer/synthesizer using recursive filters
US4002841A (en) * 1976-01-21 1977-01-11 Bell Telephone Laboratories, Incorporated Data compression using nearly instantaneous companding in a digital speech interpolation system
GB1588219A (en) * 1977-02-07 1981-04-15 Post Office Conversion of analogue signals to digital signals
GB1583635A (en) * 1977-03-02 1981-01-28 Int Standard Electric Corp Subscriber line or trunk circuit
US4189779A (en) * 1978-04-28 1980-02-19 Texas Instruments Incorporated Parameter interpolator for speech synthesis circuit
JPS54157407A (en) * 1978-06-02 1979-12-12 Hitachi Ltd Level control unit for time-division exchange
US4270026A (en) * 1979-11-28 1981-05-26 International Telephone And Telegraph Corporation Interpolator apparatus for increasing the word rate of a digital signal of the type employed in digital telephone systems

Also Published As

Publication number Publication date
NO154030B (no) 1986-03-24
AU6771681A (en) 1982-01-07
FI74848C (fi) 1988-03-10
WO1981003728A1 (en) 1981-12-24
NO820513L (no) 1982-02-18
ES8206122A1 (es) 1982-06-16
DK69882A (da) 1982-02-17
DE3070437D1 (en) 1985-05-09
EP0054024A1 (en) 1982-06-23
FI74848B (fi) 1987-11-30
DK161285C (da) 1991-12-30
JPH0477493B2 (es) 1992-12-08
FI811644L (fi) 1981-12-19
IE51778B1 (en) 1987-04-01
ES501903A0 (es) 1982-06-16
HU185634B (en) 1985-03-28
JPS57501104A (es) 1982-06-24
KR850000140B1 (ko) 1985-02-27
AU536210B2 (en) 1984-04-19
IN155721B (es) 1985-02-23
YU44960B (en) 1991-06-30
DK161285B (da) 1991-06-17
NO154030C (no) 1986-07-02
CA1165029A (en) 1984-04-03
EP0054024B1 (en) 1985-04-03
EP0054024A4 (en) 1982-12-09
IT8122412A0 (it) 1981-06-18
IE811225L (en) 1981-12-18
YU147381A (en) 1984-02-29
CH655213A5 (de) 1986-03-27
IT1167795B (it) 1987-05-13
BR8009085A (pt) 1982-05-11
DZ346A1 (fr) 2004-09-13
FR2485304B1 (fr) 1988-08-12
FR2485304A1 (fr) 1981-12-24

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