JPS57129086A - Signal processing circuit of video tape recorder - Google Patents

Signal processing circuit of video tape recorder

Info

Publication number
JPS57129086A
JPS57129086A JP1433181A JP1433181A JPS57129086A JP S57129086 A JPS57129086 A JP S57129086A JP 1433181 A JP1433181 A JP 1433181A JP 1433181 A JP1433181 A JP 1433181A JP S57129086 A JPS57129086 A JP S57129086A
Authority
JP
Japan
Prior art keywords
led
band
circuit
signal
color signal
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
JP1433181A
Other languages
Japanese (ja)
Inventor
Noboru Kojima
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 JP1433181A priority Critical patent/JPS57129086A/en
Publication of JPS57129086A publication Critical patent/JPS57129086A/en
Pending 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
    • H04N9/87—Regeneration of colour television signals

Landscapes

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

Abstract

PURPOSE:To make a circuit in small-size and to reduce a cost, by using a comb line filter for a color signal, which has been constituted of a delaying circuit of a narrow-band using a semiconductor, as a means for removing a crosstalk component of the color signal. CONSTITUTION:A low band converting color signal from an input terminal is frequency-converted to the bass band by a converting circuit 15, and is led to a mixer 21 through a band pass filter 16. Also, a low band converting color signal from an input terminal 1 is led to a 1H delaying circuit 17, furthermore is led to a converting circuit 18, and is frequency-converted to the base band. Its converted signal is led to a delaying circuit 20 through a band pass filter 19. The signal is phase-shifted by pi/2 by the delaying circuit 20, and is led to the mixer 21. When both the signals are added or subtracted respectively in the mixer 21, a signal from which a crosstalk component has been removed is obtained.
JP1433181A 1981-02-04 1981-02-04 Signal processing circuit of video tape recorder Pending JPS57129086A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1433181A JPS57129086A (en) 1981-02-04 1981-02-04 Signal processing circuit of video tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1433181A JPS57129086A (en) 1981-02-04 1981-02-04 Signal processing circuit of video tape recorder

Publications (1)

Publication Number Publication Date
JPS57129086A true JPS57129086A (en) 1982-08-10

Family

ID=11858084

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1433181A Pending JPS57129086A (en) 1981-02-04 1981-02-04 Signal processing circuit of video tape recorder

Country Status (1)

Country Link
JP (1) JPS57129086A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5526126A (en) * 1993-06-25 1996-06-11 Hitachi, Ltd. Signal processor for VTR which converts color under signals to color signals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5526126A (en) * 1993-06-25 1996-06-11 Hitachi, Ltd. Signal processor for VTR which converts color under signals to color signals

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