GB1442331A - Signal compressors and expanders - Google Patents

Signal compressors and expanders

Info

Publication number
GB1442331A
GB1442331A GB4298172A GB4298172A GB1442331A GB 1442331 A GB1442331 A GB 1442331A GB 4298172 A GB4298172 A GB 4298172A GB 4298172 A GB4298172 A GB 4298172A GB 1442331 A GB1442331 A GB 1442331A
Authority
GB
United Kingdom
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
GB4298172A
Other languages
English (en)
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 GB4298172A priority Critical patent/GB1442331A/en
Priority to CA180,248A priority patent/CA992871A/en
Priority to DE19732346126 priority patent/DE2346126C2/de
Priority to JP48103312A priority patent/JPS5914932B2/ja
Priority to NL7312802A priority patent/NL180368C/xx
Priority to US05/519,631 priority patent/US3934190A/en
Priority to CA230,839A priority patent/CA992872A/en
Publication of GB1442331A publication Critical patent/GB1442331A/en
Priority to JP57079080A priority patent/JPS5817714A/ja
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)
GB4298172A 1972-09-15 1972-09-15 Signal compressors and expanders Expired GB1442331A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB4298172A GB1442331A (en) 1972-09-15 1972-09-15 Signal compressors and expanders
CA180,248A CA992871A (en) 1972-09-15 1973-09-04 Signal compressors and expanders
DE19732346126 DE2346126C2 (de) 1972-09-15 1973-09-13 Schaltungsanordnung zur Veränderung des dynamischen Bereichs von Signalen
JP48103312A JPS5914932B2 (ja) 1972-09-15 1973-09-14 信号ダイナミックレンジ変更回路
NL7312802A NL180368C (nl) 1972-09-15 1973-09-17 Schakeling voor het wijzigen van het dynamische bereik van een signaal.
US05/519,631 US3934190A (en) 1972-09-15 1974-10-31 Signal compressors and expanders
CA230,839A CA992872A (en) 1972-09-15 1975-07-04 Signal compressors and expanders
JP57079080A JPS5817714A (ja) 1972-09-15 1982-05-11 信号のダイナミックレンジ変更回路

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
GB1442331A true GB1442331A (en) 1976-07-14

Family

ID=10426827

Family Applications (1)

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

Country Status (5)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57128231U (OSRAM) * 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 (OSRAM) 1987-04-21
JPS5817714A (ja) 1983-02-02
NL180368C (nl) 1987-02-02
NL180368B (nl) 1986-09-01
DE2346126A1 (de) 1974-03-21
DE2346126C2 (de) 1982-12-02
JPS5914932B2 (ja) 1984-04-06
JPS49134216A (OSRAM) 1974-12-24
NL7312802A (OSRAM) 1974-03-19
CA992871A (en) 1976-07-13

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930906