JPS535909A - De-emphasis circuit - Google Patents

De-emphasis circuit

Info

Publication number
JPS535909A
JPS535909A JP8012476A JP8012476A JPS535909A JP S535909 A JPS535909 A JP S535909A JP 8012476 A JP8012476 A JP 8012476A JP 8012476 A JP8012476 A JP 8012476A JP S535909 A JPS535909 A JP S535909A
Authority
JP
Japan
Prior art keywords
emphasis circuit
emphasis
vtr
needless
oscillation
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.)
Pending
Application number
JP8012476A
Other languages
Japanese (ja)
Inventor
Jun Hirai
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 JP8012476A priority Critical patent/JPS535909A/en
Publication of JPS535909A publication Critical patent/JPS535909A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE:In the emphasis of luminance signals on VTR, the needless oscillation is prevented by removing a feedback loop, thereby making a sufficient de-emphasis possible.
JP8012476A 1976-07-06 1976-07-06 De-emphasis circuit Pending JPS535909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8012476A JPS535909A (en) 1976-07-06 1976-07-06 De-emphasis circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8012476A JPS535909A (en) 1976-07-06 1976-07-06 De-emphasis circuit

Publications (1)

Publication Number Publication Date
JPS535909A true JPS535909A (en) 1978-01-19

Family

ID=13709449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8012476A Pending JPS535909A (en) 1976-07-06 1976-07-06 De-emphasis circuit

Country Status (1)

Country Link
JP (1) JPS535909A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5717240A (en) * 1980-07-04 1982-01-28 Hitachi Ltd Dynamic deemphasis circuit
JPS5880990A (en) * 1981-11-09 1983-05-16 Matsushita Electric Ind Co Ltd Recording and reproducing device for color television signal
JPS5897992A (en) * 1981-12-07 1983-06-10 Hitachi Ltd Chroma signal recording and reproducing circuit
JPS58156282A (en) * 1982-03-12 1983-09-17 Hitachi Ltd Color signal processing circuit of magnetic recording and reproducing device
JPS5914469U (en) * 1982-07-19 1984-01-28 ソニー株式会社 Color VTR
JPS5972605A (en) * 1982-10-20 1984-04-24 Toshiba Corp Noise cancelling device
JPS59138186A (en) * 1983-01-28 1984-08-08 Hitachi Ltd Emphasis and de-emphasis circuit of chroma signal
JPS6030296A (en) * 1983-07-29 1985-02-15 Victor Co Of Japan Ltd Recording and reproducing device of video signal
JPS61142894A (en) * 1985-10-18 1986-06-30 Hitachi Ltd Chrominance signal recording and reproducing circuit
EP0466442A2 (en) * 1990-07-09 1992-01-15 Sony Corporation Non-linear preemphasis-deemphasis circuits

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5717240A (en) * 1980-07-04 1982-01-28 Hitachi Ltd Dynamic deemphasis circuit
JPH0150990B2 (en) * 1980-07-04 1989-11-01 Hitachi Ltd
JPS5880990A (en) * 1981-11-09 1983-05-16 Matsushita Electric Ind Co Ltd Recording and reproducing device for color television signal
JPH0115190B2 (en) * 1981-11-09 1989-03-16 Matsushita Electric Ind Co Ltd
JPS5897992A (en) * 1981-12-07 1983-06-10 Hitachi Ltd Chroma signal recording and reproducing circuit
JPH0117636B2 (en) * 1981-12-07 1989-03-31 Hitachi Ltd
JPS58156282A (en) * 1982-03-12 1983-09-17 Hitachi Ltd Color signal processing circuit of magnetic recording and reproducing device
JPH0225597B2 (en) * 1982-03-12 1990-06-04 Hitachi Ltd
JPS5914469U (en) * 1982-07-19 1984-01-28 ソニー株式会社 Color VTR
JPH0125012Y2 (en) * 1982-07-19 1989-07-27
JPS5972605A (en) * 1982-10-20 1984-04-24 Toshiba Corp Noise cancelling device
JPH0131837B2 (en) * 1983-01-28 1989-06-28 Hitachi Ltd
JPS59138186A (en) * 1983-01-28 1984-08-08 Hitachi Ltd Emphasis and de-emphasis circuit of chroma signal
JPS6030296A (en) * 1983-07-29 1985-02-15 Victor Co Of Japan Ltd Recording and reproducing device of video signal
JPH039679B2 (en) * 1983-07-29 1991-02-08 Victor Company Of Japan
JPH0123993B2 (en) * 1985-10-18 1989-05-09 Hitachi Ltd
JPS61142894A (en) * 1985-10-18 1986-06-30 Hitachi Ltd Chrominance signal recording and reproducing circuit
EP0466442A2 (en) * 1990-07-09 1992-01-15 Sony Corporation Non-linear preemphasis-deemphasis circuits

Similar Documents

Publication Publication Date Title
JPS52153364A (en) Microwave amplifier
JPS535909A (en) De-emphasis circuit
JPS5376620A (en) Processing circuit for color video signal
JPS5380132A (en) Signal control circuit
JPS53128257A (en) Artificial lead-in evasion circuit for reference carrier reproduction circuit
JPS536074A (en) Electronic watch with alarm
JPS51113702A (en) Reverberation adder
JPS5338249A (en) Crystal oscillator circuit
JPS5354953A (en) Frequency step-multiplication circuit
JPS5337310A (en) Automatic frequency control circuit
JPS5317252A (en) Ssb modulator and demodulator
JPS5396657A (en) Digital frequency divider circuit
JPS5326556A (en) Astable mult ivibrator
JPS5266359A (en) Oscillation circuit
JPS52137227A (en) Operation control circuit
JPS52153776A (en) Digital electronic watch
JPS5378714A (en) Power source starting circuit
JPS5349932A (en) Synchronous oscillation afc system
JPS52119852A (en) Pll
JPS51123518A (en) Carrier color signal frequency modulation circuit
JPS5368507A (en) Audio muting circuit
JPS5331913A (en) Signal transmission unit
JPS51118388A (en) Variable impedance circuit
JPS536013A (en) Drop-out compensator
JPS5373947A (en) Oscillator circuit