JPS5684094A - Phase detector for color burst signal - Google Patents

Phase detector for color burst signal

Info

Publication number
JPS5684094A
JPS5684094A JP16177479A JP16177479A JPS5684094A JP S5684094 A JPS5684094 A JP S5684094A JP 16177479 A JP16177479 A JP 16177479A JP 16177479 A JP16177479 A JP 16177479A JP S5684094 A JPS5684094 A JP S5684094A
Authority
JP
Japan
Prior art keywords
circuit
phase
output
color burst
burst 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.)
Granted
Application number
JP16177479A
Other languages
Japanese (ja)
Other versions
JPS6312436B2 (en
Inventor
Kenichi Hasegawa
Akira Murayama
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP16177479A priority Critical patent/JPS5684094A/en
Publication of JPS5684094A publication Critical patent/JPS5684094A/en
Publication of JPS6312436B2 publication Critical patent/JPS6312436B2/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
    • 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

Landscapes

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

Abstract

PURPOSE:To detect securely the + or -90 deg. discontinuity in phase of a reproduced color burst signal by detecting the phase discontinuity by phase-detecting the reproduced color burst signal and the output of a reference oscillator shifted in phase by -90 deg.. CONSTITUTION:The output signal of burst gate circuit 51 is inputted to phase detecting circuits 52 and 55 and also inputted to envelope detecting circuit 105 generates a signal that is held at a high level for a period equal to the period of a color burst signal. The output of reference oscillator 56, on the other hand, is shifted by -90 deg. and inputted to circuit 52. The detection output of circut 52 is supplied to 0 deg. detecting circuit 101 and 180 deg. detecting circuit 102, which compare the color burst signal with a reference phase and, when the phase shift is within the range between + or -60 deg. and 180 deg.+ or -60 deg., output high-level signals respectively. Output signals of circuits 101 and 102 are inputted to AND circuit 106 together with the output of circuit 105 by way of OR circuit 103 and inverter circuit 104. Therefore, circuit 106 outputs a signal that shows the + or -90 deg. discontinuity detection of the phase of the reproduced color burst signal.
JP16177479A 1979-12-12 1979-12-12 Phase detector for color burst signal Granted JPS5684094A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16177479A JPS5684094A (en) 1979-12-12 1979-12-12 Phase detector for color burst signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16177479A JPS5684094A (en) 1979-12-12 1979-12-12 Phase detector for color burst signal

Publications (2)

Publication Number Publication Date
JPS5684094A true JPS5684094A (en) 1981-07-09
JPS6312436B2 JPS6312436B2 (en) 1988-03-18

Family

ID=15741642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16177479A Granted JPS5684094A (en) 1979-12-12 1979-12-12 Phase detector for color burst signal

Country Status (1)

Country Link
JP (1) JPS5684094A (en)

Also Published As

Publication number Publication date
JPS6312436B2 (en) 1988-03-18

Similar Documents

Publication Publication Date Title
EP0187504A3 (en) Digital phase correlator
AU573139B2 (en) Quadrature mixer
DE3465400D1 (en) Receiver for rf signals comprising a pair of parallel signal paths
DE2966282D1 (en) Digital phase control circuit with auxiliary circuit
GB1536215A (en) Clamping circuits for television signals
GB1412828A (en) Signal transmission systems
JPS5684094A (en) Phase detector for color burst signal
ES8506958A1 (en) Signal-dropout correction circuit for correcting video signals disturbed by signal dropouts.
JPS52114256A (en) Phase synchronization circuit
JPS647837A (en) Carrier lock detecting circuit
GB1513963A (en) Phase detector
JPS537165A (en) Synchronism detecting circuit of phase control circuit
DE3064019D1 (en) Method and arrangement for measuring the jitter of pulse signals in digital transmission systems
JPS56156045A (en) Scrambling system
JPS55114031A (en) Detector for pulse absence
JPS5635539A (en) Noise eliminating method
JPS5353216A (en) Synchronous detector circuit of video intermediate frequency signal
JPS56124016A (en) Light detector
JPS561626A (en) Lock indicator for phase synchronous circuit
JPS55149554A (en) Carrier reproducing circuit
JPS5772430A (en) Phase synchronizng detecting circuit
JPS54143274A (en) Frequency analyzer
JPS5277540A (en) Detection signal compensation signal
JPS5330857A (en) Signal change detector circuit
JPS5546803A (en) Train speed level detector