JPS6316930B2 - - Google Patents

Info

Publication number
JPS6316930B2
JPS6316930B2 JP709781A JP709781A JPS6316930B2 JP S6316930 B2 JPS6316930 B2 JP S6316930B2 JP 709781 A JP709781 A JP 709781A JP 709781 A JP709781 A JP 709781A JP S6316930 B2 JPS6316930 B2 JP S6316930B2
Authority
JP
Japan
Prior art keywords
noise reduction
electronic switch
amplifier
input
terminal
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
JP709781A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57121330A (en
Inventor
Kenzo Akagiri
Masayuki Katakura
Motomi Ookochi
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 JP709781A priority Critical patent/JPS57121330A/ja
Publication of JPS57121330A publication Critical patent/JPS57121330A/ja
Publication of JPS6316930B2 publication Critical patent/JPS6316930B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/62Details 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
    • H04B1/64Volume compression or expansion arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
JP709781A 1981-01-20 1981-01-20 Noise reduction device Granted JPS57121330A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP709781A JPS57121330A (en) 1981-01-20 1981-01-20 Noise reduction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP709781A JPS57121330A (en) 1981-01-20 1981-01-20 Noise reduction device

Publications (2)

Publication Number Publication Date
JPS57121330A JPS57121330A (en) 1982-07-28
JPS6316930B2 true JPS6316930B2 (enExample) 1988-04-12

Family

ID=11656569

Family Applications (1)

Application Number Title Priority Date Filing Date
JP709781A Granted JPS57121330A (en) 1981-01-20 1981-01-20 Noise reduction device

Country Status (1)

Country Link
JP (1) JPS57121330A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2925158B2 (ja) * 1988-07-29 1999-07-28 株式会社東芝 変調器および送信器

Also Published As

Publication number Publication date
JPS57121330A (en) 1982-07-28

Similar Documents

Publication Publication Date Title
US4281295A (en) Noise reducing apparatus
US4162462A (en) Noise reduction system
US5883963A (en) Method of adjusting the volume and the loudness in an audio device
JPH0720319B2 (ja) センターモードコントロール回路
US6452443B1 (en) Stable, low-noise bimodal audio filter circuit
KR880000597B1 (ko) 잡음 저감 회로
US4224581A (en) Compander system having limiter in compressor and expander
JPS6316930B2 (enExample)
US5325440A (en) Loudness control circuit
US4354209A (en) Recording/playing circuit
JPH0522416B2 (enExample)
JPS6232850B2 (enExample)
JPH01236710A (ja) ノイズリダクション回路
JPS58172032A (ja) コンパンダシステム
JPS6041009Y2 (ja) Pcm信号処理装置の入力回路
JPS6316052B2 (enExample)
JPS6029225Y2 (ja) 増幅器における入力切換回路
JPS6316053B2 (enExample)
US3001149A (en) Low-frequency amplifier
JPS6340376B2 (enExample)
JP2611205B2 (ja) 記録再生装置
JPS63281271A (ja) ノイズリダクシヨン回路
JPH032989Y2 (enExample)
JPS58175327A (ja) コンパンダシステム
JPS6249762B2 (enExample)