JPS647806A - Amplitude compressing/expanding circuit - Google Patents

Amplitude compressing/expanding circuit

Info

Publication number
JPS647806A
JPS647806A JP16361287A JP16361287A JPS647806A JP S647806 A JPS647806 A JP S647806A JP 16361287 A JP16361287 A JP 16361287A JP 16361287 A JP16361287 A JP 16361287A JP S647806 A JPS647806 A JP S647806A
Authority
JP
Japan
Prior art keywords
input
signal
input signal
gain
amplitude
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
JP16361287A
Other languages
Japanese (ja)
Other versions
JP2712180B2 (en
Inventor
Kenzo Akagiri
Tomoko Sato
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.)
Sony Corp
Original Assignee
Sony 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
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP16361287A priority Critical patent/JP2712180B2/en
Publication of JPS647806A publication Critical patent/JPS647806A/en
Application granted granted Critical
Publication of JP2712180B2 publication Critical patent/JP2712180B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE:To scarcely cause variation of an input/output characteristic, even if a frequency of an input signal is varied, and also, to obtain an amplitude compressing/expanding circuit of a desired input/output characteristic, by controlling the gain of an amplitude modulating circuit, based on an absolute value signal of an input signal and an output signal. CONSTITUTION:A gain (g) of an amplitude modulating circuit 3 is controlled, based on absolute value signals S11, S01 of an input signal S1 and an output signal S0, of an amplitude compressing/expanding circuit 10 for controlling the gain (g) of the amplitude modulating circuit 3, based on the input signal S1 and the output signal S0 of the amplitude modulating circuit 3. When the gain (g) of the amplitude modulating circuit 3 is controlled, based on the absolute value signals S11, S01 of the input signal S1 and the output signal S0, even if the frequency of the input signal S1 is varied, a fluctuation of the gain of the amplitude modulating circuit 3 can be reduced. In such a way, a desired input/output characteristic can be obtained, and also, a variation of the input/ output characteristic by the frequency of the input signal can be prevented.
JP16361287A 1987-06-30 1987-06-30 Amplitude compression / expansion circuit Expired - Fee Related JP2712180B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16361287A JP2712180B2 (en) 1987-06-30 1987-06-30 Amplitude compression / expansion circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16361287A JP2712180B2 (en) 1987-06-30 1987-06-30 Amplitude compression / expansion circuit

Publications (2)

Publication Number Publication Date
JPS647806A true JPS647806A (en) 1989-01-11
JP2712180B2 JP2712180B2 (en) 1998-02-10

Family

ID=15777235

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16361287A Expired - Fee Related JP2712180B2 (en) 1987-06-30 1987-06-30 Amplitude compression / expansion circuit

Country Status (1)

Country Link
JP (1) JP2712180B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116506514A (en) * 2023-06-27 2023-07-28 大唐融合通信股份有限公司 Data compression method, device, equipment, server and sewage cloud control system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5951630A (en) * 1982-09-17 1984-03-26 Sony Corp Dynamic range compression circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5951630A (en) * 1982-09-17 1984-03-26 Sony Corp Dynamic range compression circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116506514A (en) * 2023-06-27 2023-07-28 大唐融合通信股份有限公司 Data compression method, device, equipment, server and sewage cloud control system
CN116506514B (en) * 2023-06-27 2023-12-12 大唐融合通信股份有限公司 Data compression method, device, equipment, server and sewage cloud control system

Also Published As

Publication number Publication date
JP2712180B2 (en) 1998-02-10

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees