JPS57171814A - Circuit for altering dynamic range of input signal - Google Patents

Circuit for altering dynamic range of input signal

Info

Publication number
JPS57171814A
JPS57171814A JP57047042A JP4704282A JPS57171814A JP S57171814 A JPS57171814 A JP S57171814A JP 57047042 A JP57047042 A JP 57047042A JP 4704282 A JP4704282 A JP 4704282A JP S57171814 A JPS57171814 A JP S57171814A
Authority
JP
Japan
Prior art keywords
circuit
input signal
dynamic range
altering dynamic
altering
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.)
Granted
Application number
JP57047042A
Other languages
Japanese (ja)
Other versions
JPS5925521B2 (en
Inventor
Miruton Dorubii Rei
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.)
DORUBII LAB Inc
Dolby Laboratories Inc
Original Assignee
DORUBII LAB Inc
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 DORUBII LAB Inc, Dolby Laboratories Inc filed Critical DORUBII LAB Inc
Publication of JPS57171814A publication Critical patent/JPS57171814A/en
Publication of JPS5925521B2 publication Critical patent/JPS5925521B2/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

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
JP57047042A 1973-05-17 1982-03-24 Circuit for changing the dynamic range of the input signal Expired JPS5925521B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB23638/73 1973-05-17
GB2363873A GB1473831A (en) 1973-05-17 1973-05-17
GB41673/73 1973-09-05

Publications (2)

Publication Number Publication Date
JPS57171814A true JPS57171814A (en) 1982-10-22
JPS5925521B2 JPS5925521B2 (en) 1984-06-19

Family

ID=10198891

Family Applications (3)

Application Number Title Priority Date Filing Date
JP57047043A Pending JPS57171815A (en) 1973-05-17 1982-03-24 Circuit for altering dynamic range of input signal
JP57047042A Expired JPS5925521B2 (en) 1973-05-17 1982-03-24 Circuit for changing the dynamic range of the input signal
JP57047044A Expired JPS5925522B2 (en) 1973-05-17 1982-03-24 Circuit for changing the dynamic range of the input signal

Family Applications Before (1)

Application Number Title Priority Date Filing Date
JP57047043A Pending JPS57171815A (en) 1973-05-17 1982-03-24 Circuit for altering dynamic range of input signal

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP57047044A Expired JPS5925522B2 (en) 1973-05-17 1982-03-24 Circuit for changing the dynamic range of the input signal

Country Status (2)

Country Link
JP (3) JPS57171815A (en)
GB (1) GB1473831A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04504U (en) * 1990-04-13 1992-01-06

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5994909A (en) * 1982-11-19 1984-05-31 Matsushita Electric Ind Co Ltd Graphic equalizer system
US4801890A (en) * 1985-06-17 1989-01-31 Dolby Ray Milton Circuit arrangements for modifying dynamic range using variable combining techniques

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04504U (en) * 1990-04-13 1992-01-06

Also Published As

Publication number Publication date
JPS57171816A (en) 1982-10-22
JPS5925522B2 (en) 1984-06-19
GB1473831A (en) 1977-05-18
JPS5925521B2 (en) 1984-06-19
JPS57171815A (en) 1982-10-22

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