FR2498850A1 - Expanseur et compresseur de signaux - Google Patents

Expanseur et compresseur de signaux Download PDF

Info

Publication number
FR2498850A1
FR2498850A1 FR8201337A FR8201337A FR2498850A1 FR 2498850 A1 FR2498850 A1 FR 2498850A1 FR 8201337 A FR8201337 A FR 8201337A FR 8201337 A FR8201337 A FR 8201337A FR 2498850 A1 FR2498850 A1 FR 2498850A1
Authority
FR
France
Prior art keywords
signal
input
node
output
voltage
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.)
Withdrawn
Application number
FR8201337A
Other languages
English (en)
French (fr)
Inventor
Charles Benjamin Dieterich
Todd J Christopher
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 FR2498850A1 publication Critical patent/FR2498850A1/fr
Withdrawn legal-status Critical Current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)
FR8201337A 1981-01-29 1982-01-28 Expanseur et compresseur de signaux Withdrawn FR2498850A1 (fr)

Applications Claiming Priority (3)

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

Publications (1)

Publication Number Publication Date
FR2498850A1 true FR2498850A1 (fr) 1982-07-30

Family

ID=27397963

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8201337A Withdrawn FR2498850A1 (fr) 1981-01-29 1982-01-28 Expanseur et compresseur de signaux

Country Status (11)

Country Link
KR (1) KR830009703A (de)
AU (1) AU544439B2 (de)
DE (1) DE3202951C2 (de)
DK (1) DK38682A (de)
ES (1) ES8308457A1 (de)
FR (1) FR2498850A1 (de)
GB (1) GB2094594B (de)
IT (1) IT1140449B (de)
NL (1) NL8200321A (de)
PT (1) PT74105B (de)
SE (1) SE8200367L (de)

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 (sv) * 1998-04-08 1999-10-09 Anders Gingsjoe Anordning och metod för reducering av transienter
DE10122922A1 (de) * 2001-05-11 2002-11-14 Mgp Instr Gmbh Verfahren und Filtereinrichtung zur Fluktuatiuonsunterdrückung bei Meßdaten

Citations (5)

* 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
FR2217859A1 (de) * 1973-02-08 1974-09-06 Grundig Emv
US4024463A (en) * 1976-05-03 1977-05-17 Rockwell International Corporation A.C. amplifier automatic gain control fast attack circuit
GB2040616A (en) * 1979-01-17 1980-08-28 Racal Dana Instr Ltd Improvements in and Relating to Electrical Circuit Arrangements
US4220929A (en) * 1978-12-26 1980-09-02 Dbx, Inc. Signal expander

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732371A (en) * 1971-05-10 1973-05-08 Richard S Burwen Wide dynamic range noise masking compandor
US3980964A (en) * 1974-05-20 1976-09-14 Grodinsky Robert M Noise reduction circuit
DE2803751C2 (de) * 1978-01-28 1982-06-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltung zur automatischen Dynamik- Kompression oder -Expansion

Patent Citations (5)

* 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
FR2217859A1 (de) * 1973-02-08 1974-09-06 Grundig Emv
US4024463A (en) * 1976-05-03 1977-05-17 Rockwell International Corporation A.C. amplifier automatic gain control fast attack circuit
US4220929A (en) * 1978-12-26 1980-09-02 Dbx, Inc. Signal expander
GB2040616A (en) * 1979-01-17 1980-08-28 Racal Dana Instr Ltd Improvements in and Relating to Electrical Circuit Arrangements

Also Published As

Publication number Publication date
ES508964A0 (es) 1983-06-16
NL8200321A (nl) 1982-08-16
GB2094594B (en) 1984-10-24
DE3202951A1 (de) 1982-08-26
IT1140449B (it) 1986-09-24
AU7975882A (en) 1982-08-05
DK38682A (da) 1982-07-30
SE8200367A0 (sv) 1982-07-30
KR830009703A (ko) 1983-12-22
GB2094594A (en) 1982-09-15
AU544439B2 (en) 1985-05-30
ES8308457A1 (es) 1983-06-16
PT74105A (en) 1982-01-01
PT74105B (en) 1983-06-15
DE3202951C2 (de) 1984-08-09
IT8125956A0 (it) 1981-12-31
SE8200367L (sv) 1982-07-30

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Legal Events

Date Code Title Description
ST Notification of lapse