JPS5765987A - Color video camera with magnetic recording device - Google Patents

Color video camera with magnetic recording device

Info

Publication number
JPS5765987A
JPS5765987A JP55142098A JP14209880A JPS5765987A JP S5765987 A JPS5765987 A JP S5765987A JP 55142098 A JP55142098 A JP 55142098A JP 14209880 A JP14209880 A JP 14209880A JP S5765987 A JPS5765987 A JP S5765987A
Authority
JP
Japan
Prior art keywords
chromaticity
low band
mixer
matrix
subjected
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
JP55142098A
Other languages
Japanese (ja)
Inventor
Yoshizumi Wataya
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 JP55142098A priority Critical patent/JPS5765987A/en
Publication of JPS5765987A publication Critical patent/JPS5765987A/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

Landscapes

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

Abstract

PURPOSE:To simplify the processing circuit for a chromaticity signal to simplify the circuit scale, by subjecting the low band conversion carrier wave of an oscillator to balanced modulation directly by the chromaticity signal from a matrix. CONSTITUTION:The low band conversion carrier wave of a low band chrominance subcarrier frequency oscillator 31 is subjected to balanced modulation directly in a balanced modulator 13 by chromaticity signals R-Y and B-Y of a matrix 12. Consequently, the output of the balanced modulator 13 becomes a chromaticity signal converted to a low band frequency and is applied to a mixer 28 through an LPF27 and is recorded on a magnetic recording medium by a recording amplifier 29. Meanwhile, the luminance signal of the matrix 12 is not mexed with chromaticity signals and is subjected to FM modulation directly by an FM modulator 23 and is recorded through an HPF24 and a mixer 28 by the recording amplifier 29. Thus, one oscillator is sufficient for the precessing circuit of chromaticity signals, and a frequency converter, a Y-C separating BPF, and a Y-C mixer in the color video camera side are unnecessary, asnd the circuit scale is simplified because the luminance signal is subjected to FM modulation directly.
JP55142098A 1980-10-13 1980-10-13 Color video camera with magnetic recording device Pending JPS5765987A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55142098A JPS5765987A (en) 1980-10-13 1980-10-13 Color video camera with magnetic recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55142098A JPS5765987A (en) 1980-10-13 1980-10-13 Color video camera with magnetic recording device

Publications (1)

Publication Number Publication Date
JPS5765987A true JPS5765987A (en) 1982-04-21

Family

ID=15307376

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55142098A Pending JPS5765987A (en) 1980-10-13 1980-10-13 Color video camera with magnetic recording device

Country Status (1)

Country Link
JP (1) JPS5765987A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6286996A (en) * 1985-10-14 1987-04-21 Hitachi Ltd Magnetic recording and reproducing device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5165828A (en) * 1974-12-05 1976-06-07 Victor Company Of Japan

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5165828A (en) * 1974-12-05 1976-06-07 Victor Company Of Japan

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6286996A (en) * 1985-10-14 1987-04-21 Hitachi Ltd Magnetic recording and reproducing device

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