JPS5492013A - Pal type color video signal reproducing system - Google Patents

Pal type color video signal reproducing system

Info

Publication number
JPS5492013A
JPS5492013A JP15790577A JP15790577A JPS5492013A JP S5492013 A JPS5492013 A JP S5492013A JP 15790577 A JP15790577 A JP 15790577A JP 15790577 A JP15790577 A JP 15790577A JP S5492013 A JPS5492013 A JP S5492013A
Authority
JP
Japan
Prior art keywords
phase
signal
carrier wave
color
inverting
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
JP15790577A
Other languages
Japanese (ja)
Inventor
Akira Hirota
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP15790577A priority Critical patent/JPS5492013A/en
Priority to DE19782856634 priority patent/DE2856634C2/en
Priority to AU42975/78A priority patent/AU511503B2/en
Publication of JPS5492013A publication Critical patent/JPS5492013A/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
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
    • H04N9/83—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal
    • H04N9/84—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal the recorded signal showing a feature, which is different in adjacent track parts, e.g. different phase or frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE: To regenerate excellent PAL type color picture signal at all times by inverting the phase of invering signal used for returning the reproduced color sub- carrier wave signal, etc. to the original band through the phase inverting circuit.
CONSTITUTION: The automatic phase equalizing circuit equalizes the phase of color sub-carrier wave of carrier color signal with the phase of standard signal, phase-shifts 48 the standard signal by the specified amount, is provided with a phase comparison unit which compares phases of the output signal of phase shifter with the reproduction color sub-carrier wave and detects when a signal fed into phase comparison unit in automatic phase equalizing circuit is exceeding the range of phase comparing function. It also inverts the phase of inverting signal used for returning the reproduction color sub-carrier wave or reproduction low range converting carrier color signal to the original band by phase inverting circuit 41 when the detection output of phase comparison unit 42 is applied. This invention makes it possible to always reproduce excellent PAL type color picture signal regardless of the type of phase errors.
COPYRIGHT: (C)1979,JPO&Japio
JP15790577A 1977-12-29 1977-12-29 Pal type color video signal reproducing system Pending JPS5492013A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP15790577A JPS5492013A (en) 1977-12-29 1977-12-29 Pal type color video signal reproducing system
DE19782856634 DE2856634C2 (en) 1977-12-29 1978-12-29 Circuit arrangement for recording and / or reproducing PAL color television signals
AU42975/78A AU511503B2 (en) 1977-12-29 1978-12-29 Pal system colour recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15790577A JPS5492013A (en) 1977-12-29 1977-12-29 Pal type color video signal reproducing system

Publications (1)

Publication Number Publication Date
JPS5492013A true JPS5492013A (en) 1979-07-20

Family

ID=15659992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15790577A Pending JPS5492013A (en) 1977-12-29 1977-12-29 Pal type color video signal reproducing system

Country Status (3)

Country Link
JP (1) JPS5492013A (en)
AU (1) AU511503B2 (en)
DE (1) DE2856634C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6058788A (en) * 1983-09-10 1985-04-04 Sony Corp Phase control circuit of video signal

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5935558B2 (en) * 1978-01-10 1984-08-29 日本ビクター株式会社 Color video signal reproducing device
JPS56132074A (en) * 1980-03-21 1981-10-16 Victor Co Of Japan Ltd Video signal recording system and record reproducing system
JPS59186492A (en) * 1983-04-07 1984-10-23 Victor Co Of Japan Ltd Recording and reproducing device of color video signal
DE136890T1 (en) * 1983-09-30 1985-08-14 Victor Company Of Japan, Ltd., Yokohama, Kanagawa METHOD AND DEVICE FOR RECORDING AND / OR PLAYING BACK COLOR VIDEO SIGNALS.
EP0690633B1 (en) * 1994-06-30 2000-03-08 SANYO ELECTRIC Co., Ltd. Video signal reproduction apparatus for chrominance signals

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1497865A (en) * 1973-12-28 1978-01-12 Sony Corp Magnetic recording and/or reproducing apparatus
JPS5346570B2 (en) * 1974-02-18 1978-12-14
US4079412A (en) * 1976-01-30 1978-03-14 Victor Company Of Japan, Limited Signal processing circuit in a color video signal recording and/or reproducing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6058788A (en) * 1983-09-10 1985-04-04 Sony Corp Phase control circuit of video signal

Also Published As

Publication number Publication date
AU4297578A (en) 1979-08-02
DE2856634C2 (en) 1982-11-11
DE2856634A1 (en) 1979-07-05
AU511503B2 (en) 1980-08-21

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