JPS5652986A - Video signal regenerative circuit - Google Patents

Video signal regenerative circuit

Info

Publication number
JPS5652986A
JPS5652986A JP12895279A JP12895279A JPS5652986A JP S5652986 A JPS5652986 A JP S5652986A JP 12895279 A JP12895279 A JP 12895279A JP 12895279 A JP12895279 A JP 12895279A JP S5652986 A JPS5652986 A JP S5652986A
Authority
JP
Japan
Prior art keywords
signal
stage amplifier
level
output
color
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
JP12895279A
Other languages
Japanese (ja)
Other versions
JPS6128274B2 (en
Inventor
Akihiro Yamamoto
Koichi Hirose
Akira Shibata
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12895279A priority Critical patent/JPS5652986A/en
Publication of JPS5652986A publication Critical patent/JPS5652986A/en
Publication of JPS6128274B2 publication Critical patent/JPS6128274B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/42—Modifications of amplifiers to extend the bandwidth
    • H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)

Abstract

PURPOSE:To put in order the level of a color signal and an FM signal, obtain the level of the desired color signal and FM signal by the next stage amplifier, and make the amplifier for a regenerative color unnecessary, by feeding back an output of the first stage amplifier to the input part negatively enough, and damping it. CONSTITUTION:The signal voltage which has been induced by the head 1 is input to the preamplifier IC 12 from the terminal 4. An output of this first stage amplifier 5 is negatively fed back to the input part through the damping resistor 6, and is damped enough. Subsequently, it is amplified to a fixed level signal by the post- stage amplifier 7, the emitter-follower output terminal 9 is made a common terminal, and one outputs a color signal component 14 through the low-pass filter 13, and the other outputs an FM signal through the FM peaking circuit 15.
JP12895279A 1979-10-08 1979-10-08 Video signal regenerative circuit Granted JPS5652986A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12895279A JPS5652986A (en) 1979-10-08 1979-10-08 Video signal regenerative circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12895279A JPS5652986A (en) 1979-10-08 1979-10-08 Video signal regenerative circuit

Publications (2)

Publication Number Publication Date
JPS5652986A true JPS5652986A (en) 1981-05-12
JPS6128274B2 JPS6128274B2 (en) 1986-06-30

Family

ID=14997460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12895279A Granted JPS5652986A (en) 1979-10-08 1979-10-08 Video signal regenerative circuit

Country Status (1)

Country Link
JP (1) JPS5652986A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59105786A (en) * 1982-12-10 1984-06-19 Hitachi Ltd Preamplifier integrated circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3513267A (en) * 1966-05-16 1970-05-19 Ampex Low input impedance playback preamplifier for swamping out head resonance in a video tape reproducing system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3513267A (en) * 1966-05-16 1970-05-19 Ampex Low input impedance playback preamplifier for swamping out head resonance in a video tape reproducing system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59105786A (en) * 1982-12-10 1984-06-19 Hitachi Ltd Preamplifier integrated circuit
JPH0156592B2 (en) * 1982-12-10 1989-11-30 Hitachi Ltd

Also Published As

Publication number Publication date
JPS6128274B2 (en) 1986-06-30

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