IL90272A0 - Processor based linked compressor-expander telecommunications system - Google Patents

Processor based linked compressor-expander telecommunications system

Info

Publication number
IL90272A0
IL90272A0 IL90272A IL9027289A IL90272A0 IL 90272 A0 IL90272 A0 IL 90272A0 IL 90272 A IL90272 A IL 90272A IL 9027289 A IL9027289 A IL 9027289A IL 90272 A0 IL90272 A0 IL 90272A0
Authority
IL
Israel
Prior art keywords
expander
telecommunications system
processor based
based linked
linked compressor
Prior art date
Application number
IL90272A
Other languages
English (en)
Original Assignee
Amaf Ind Inc
Trw Inc
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 Amaf Ind Inc, Trw Inc filed Critical Amaf Ind Inc
Publication of IL90272A0 publication Critical patent/IL90272A0/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/18—Time-division multiplex systems using frequency compression and subsequent expansion of the individual signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
IL90272A 1988-05-20 1989-05-12 Processor based linked compressor-expander telecommunications system IL90272A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/196,235 US4839906A (en) 1988-05-20 1988-05-20 Processor based linked compressor-expander telecommunications system

Publications (1)

Publication Number Publication Date
IL90272A0 true IL90272A0 (en) 1989-12-15

Family

ID=22724558

Family Applications (1)

Application Number Title Priority Date Filing Date
IL90272A IL90272A0 (en) 1988-05-20 1989-05-12 Processor based linked compressor-expander telecommunications system

Country Status (7)

Country Link
US (1) US4839906A (fr)
EP (1) EP0342686A3 (fr)
JP (1) JPH06103842B2 (fr)
CN (1) CN1038732A (fr)
AU (1) AU3493589A (fr)
CA (1) CA1287376C (fr)
IL (1) IL90272A0 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5065451A (en) * 1989-06-09 1991-11-12 Amaf Industries, Inc. System and method of frequency calibration in a linked compression-expansion (lincompex) system
US5058202A (en) * 1989-08-25 1991-10-15 Amaf Industries, Inc. System and method of transmitting and receiving a licompex modulated signal over a communication channel utilizing frequency modulation techniques
US5309478A (en) * 1990-01-29 1994-05-03 Massachusetts Institute Of Technology Method and apparatus for hybrid analog/digital signal processing
US5241689A (en) * 1990-12-07 1993-08-31 Ericsson Ge Mobile Communications Inc. Digital signal processor audio compression in an RF base station system
US5471651A (en) * 1991-03-20 1995-11-28 British Broadcasting Corporation Method and system for compressing the dynamic range of audio signals
US5631969A (en) * 1993-03-25 1997-05-20 Ericsson Inc. System for limiting the magnitude of sampled data
US5579316A (en) * 1994-05-02 1996-11-26 Adtran Communications technique for transmitting limited size digital data frames using macro headers to represent multiple header code patterns associated with encapsulation protocols and signal processing operations to which transmitted data are subjected
FR2728750A1 (fr) * 1994-12-21 1996-06-28 Trt Telecom Radio Electr Systeme de transmission de signaux vocaux sous forme numerique et dispositif de codage-decodage pour un tel systeme
US5845216A (en) * 1995-05-30 1998-12-01 Sierra Wireless, Inc. Optimized companding for communication over cellular systems
US5900825A (en) * 1996-08-01 1999-05-04 Manitto Technologies, Inc. System and method for communicating location and direction specific information to a vehicle
US5864799A (en) * 1996-08-08 1999-01-26 Motorola Inc. Apparatus and method for generating noise in a digital receiver
US7706851B2 (en) * 2005-07-21 2010-04-27 Radioshack Corporation Compander, and associated methodology, for a radio communication station operable pursuant to a coded squelch scheme

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1912218A1 (de) * 1968-05-17 1969-10-02 Ames Automobielbedrijf N V Schlafstelle fuer Automobile
US4090145A (en) * 1969-03-24 1978-05-16 Webb Joseph A Digital quadrature demodulator
US4123711A (en) * 1977-01-24 1978-10-31 Canadian Patents And Development Limited Synchronized compressor and expander voice processing system for radio telephone
US4250470A (en) * 1978-06-28 1981-02-10 Communications Satellite Corporation Syllabic compander with logarithmic chain
US4271499A (en) * 1978-07-12 1981-06-02 H.F. Communications Corporation Method and apparatus for digitally implementing a linked compressor-expander telecommunications system
US4295223A (en) * 1979-04-25 1981-10-13 Westinghouse Electric Corp. Digital signal/noise ratio amplifier apparatus for a communication system
US4253072A (en) * 1979-07-09 1981-02-24 Fisher Charles B Compandor with sampling and equalization
US4539707A (en) * 1982-06-01 1985-09-03 Aerotron, Inc. Compressed single side band communications system and method
US4700361A (en) * 1983-10-07 1987-10-13 Dolby Laboratories Licensing Corporation Spectral emphasis and de-emphasis
JPS60101769A (ja) * 1983-11-09 1985-06-05 Hitachi Ltd 信号伝送装置

Also Published As

Publication number Publication date
CN1038732A (zh) 1990-01-10
JPH06103842B2 (ja) 1994-12-14
US4839906A (en) 1989-06-13
EP0342686A2 (fr) 1989-11-23
AU3493589A (en) 1989-11-23
JPH0278334A (ja) 1990-03-19
EP0342686A3 (fr) 1991-07-03
CA1287376C (fr) 1991-08-06

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