AU544439B2 - Signal expander/compressor - Google Patents

Signal expander/compressor

Info

Publication number
AU544439B2
AU544439B2 AU79758/82A AU7975882A AU544439B2 AU 544439 B2 AU544439 B2 AU 544439B2 AU 79758/82 A AU79758/82 A AU 79758/82A AU 7975882 A AU7975882 A AU 7975882A AU 544439 B2 AU544439 B2 AU 544439B2
Authority
AU
Australia
Prior art keywords
compressor
signal expander
expander
signal
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 - Fee Related
Application number
AU79758/82A
Other versions
AU7975882A (en
Inventor
Todd J. Christopher
Charles Benjamin Dieterich
Gopi Nath Mehrotra
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.)
RCA Corp
Original Assignee
RCA 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
Priority claimed from US06/229,743 external-priority patent/US4377788A/en
Priority claimed from US06/258,432 external-priority patent/US4398157A/en
Application filed by RCA Corp filed Critical RCA Corp
Publication of AU7975882A publication Critical patent/AU7975882A/en
Application granted granted Critical
Publication of AU544439B2 publication Critical patent/AU544439B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Networks Using Active Elements (AREA)
  • Control Of Amplification And Gain Control (AREA)
AU79758/82A 1981-01-29 1982-01-22 Signal expander/compressor Expired - Fee Related AU544439B2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US22951881A 1981-01-29 1981-01-29
US229743 1981-01-29
US06/229,743 US4377788A (en) 1981-01-29 1981-01-29 Signal expander
US229518 1981-01-29
US258432 1981-04-28
US06/258,432 US4398157A (en) 1981-01-29 1981-04-28 Signal expander/compressor with adaptive control circuit

Publications (2)

Publication Number Publication Date
AU7975882A AU7975882A (en) 1982-08-05
AU544439B2 true AU544439B2 (en) 1985-05-30

Family

ID=27397963

Family Applications (1)

Application Number Title Priority Date Filing Date
AU79758/82A Expired - Fee Related AU544439B2 (en) 1981-01-29 1982-01-22 Signal expander/compressor

Country Status (11)

Country Link
KR (1) KR830009703A (en)
AU (1) AU544439B2 (en)
DE (1) DE3202951C2 (en)
DK (1) DK38682A (en)
ES (1) ES508964A0 (en)
FR (1) FR2498850A1 (en)
GB (1) GB2094594B (en)
IT (1) IT1140449B (en)
NL (1) NL8200321A (en)
PT (1) PT74105B (en)
SE (1) SE8200367L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8701365D0 (en) * 1987-01-22 1987-02-25 Thomas L D Signal level control
SE9801235L (en) * 1998-04-08 1999-10-09 Anders Gingsjoe Device and method for reducing transients
DE10122922A1 (en) * 2001-05-11 2002-11-14 Mgp Instr Gmbh Measured data fluctuation suppression comprises feeding signals into filter, subtracting output signal from control signal, and feeding difference signal to comparator

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1044004A (en) * 1962-06-07 1966-09-28 Emi Ltd Improvements in or relating to circuits for compressing or expanding the amplitude range of an input signal
US3732371A (en) * 1971-05-10 1973-05-08 Richard S Burwen Wide dynamic range noise masking compandor
DE2306152A1 (en) * 1973-02-08 1974-08-15 Grundig Emv AUTOMATIC GAIN CONTROL
US3980964A (en) * 1974-05-20 1976-09-14 Grodinsky Robert M Noise reduction circuit
US4024463A (en) * 1976-05-03 1977-05-17 Rockwell International Corporation A.C. amplifier automatic gain control fast attack circuit
DE2803751C2 (en) * 1978-01-28 1982-06-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Circuit for automatic dynamic compression or expansion
US4220929A (en) * 1978-12-26 1980-09-02 Dbx, Inc. Signal expander
GB2040616B (en) * 1979-01-17 1983-01-26 Racal Dana Instr Ltd Electrical circuit arrangements

Also Published As

Publication number Publication date
DE3202951A1 (en) 1982-08-26
DE3202951C2 (en) 1984-08-09
PT74105B (en) 1983-06-15
ES8308457A1 (en) 1983-06-16
AU7975882A (en) 1982-08-05
ES508964A0 (en) 1983-06-16
GB2094594A (en) 1982-09-15
NL8200321A (en) 1982-08-16
IT1140449B (en) 1986-09-24
FR2498850A1 (en) 1982-07-30
PT74105A (en) 1982-01-01
DK38682A (en) 1982-07-30
IT8125956A0 (en) 1981-12-31
SE8200367A0 (en) 1982-07-30
GB2094594B (en) 1984-10-24
KR830009703A (en) 1983-12-22
SE8200367L (en) 1982-07-30

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