CA992871A - Signal compressors and expanders - Google Patents

Signal compressors and expanders

Info

Publication number
CA992871A
CA992871A CA180,248A CA180248A CA992871A CA 992871 A CA992871 A CA 992871A CA 180248 A CA180248 A CA 180248A CA 992871 A CA992871 A CA 992871A
Authority
CA
Canada
Prior art keywords
expanders
signal compressors
compressors
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
Application number
CA180,248A
Other versions
CA180248S (en
Inventor
Ray M. Dolby
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.)
Dolby Laboratories Inc
Original Assignee
Dolby Laboratories 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 Dolby Laboratories Inc filed Critical Dolby Laboratories Inc
Priority to CA230,839A priority Critical patent/CA992872A/en
Application granted granted Critical
Publication of CA992871A publication Critical patent/CA992871A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • H04B1/64—Volume compression or expansion arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Amplifiers (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
CA180,248A 1972-09-15 1973-09-04 Signal compressors and expanders Expired CA992871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA230,839A CA992872A (en) 1972-09-15 1975-07-04 Signal compressors and expanders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4298172A GB1442331A (en) 1972-09-15 1972-09-15 Signal compressors and expanders

Publications (1)

Publication Number Publication Date
CA992871A true CA992871A (en) 1976-07-13

Family

ID=10426827

Family Applications (1)

Application Number Title Priority Date Filing Date
CA180,248A Expired CA992871A (en) 1972-09-15 1973-09-04 Signal compressors and expanders

Country Status (5)

Country Link
JP (2) JPS5914932B2 (en)
CA (1) CA992871A (en)
DE (1) DE2346126C2 (en)
GB (1) GB1442331A (en)
NL (1) NL180368C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57128231U (en) * 1981-02-03 1982-08-10

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3182271A (en) * 1960-12-15 1965-05-04 Aiken William Ross Tone control circuit for emphasizing low volume high and low frequency signals

Also Published As

Publication number Publication date
JPS6218086B2 (en) 1987-04-21
JPS5914932B2 (en) 1984-04-06
NL180368C (en) 1987-02-02
NL7312802A (en) 1974-03-19
NL180368B (en) 1986-09-01
GB1442331A (en) 1976-07-14
JPS5817714A (en) 1983-02-02
JPS49134216A (en) 1974-12-24
DE2346126A1 (en) 1974-03-21
DE2346126C2 (en) 1982-12-02

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