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JPS5718182A - Color signal generator - Google Patents

Color signal generator

Info

Publication number
JPS5718182A
JPS5718182A JP9359980A JP9359980A JPS5718182A JP S5718182 A JPS5718182 A JP S5718182A JP 9359980 A JP9359980 A JP 9359980A JP 9359980 A JP9359980 A JP 9359980A JP S5718182 A JPS5718182 A JP S5718182A
Authority
JP
Japan
Prior art keywords
code
luminance
color signal
chroma
transfers
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
JP9359980A
Other languages
Japanese (ja)
Inventor
Akihiko Minami
Hideji Hirakawa
Yutaka Tanaka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9359980A priority Critical patent/JPS5718182A/en
Publication of JPS5718182A publication Critical patent/JPS5718182A/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
    • H04N9/64—Circuits for processing colour signals
    • H04N9/641—Multi-purpose receivers, e.g. for auxiliary information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits

Landscapes

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

Abstract

PURPOSE:To limit a color signal in a proper range without distorting a sine wave of a color signal, by limiting a range which can be taken by a luminance level and a chroma level, in accordance with each level. CONSTITUTION:Each code of luminance 1a, chroma saturation 1b and hue 1c is led into a CPU 1. The CPU 1 converts it to a suitable code, transfers a luminance code 2a to a program ROM 3 of a varying speed, and transfers a chroma saturation code 2b and a hue code 2c to a program ROM 4 of a high speed. The ROM 3 converts the luminance code 2a to a luminance data 5a and transfers it to an adder 6. The ROM 4 converts the chroma saturation code 2b and the hue code 2c to a chroma data 5b and transfers it to the adder 6. The adder 6 addes the luminance data 5a and the chroma data 5b, and makes a color signal 6a.
JP9359980A 1980-07-09 1980-07-09 Color signal generator Pending JPS5718182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9359980A JPS5718182A (en) 1980-07-09 1980-07-09 Color signal generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9359980A JPS5718182A (en) 1980-07-09 1980-07-09 Color signal generator

Publications (1)

Publication Number Publication Date
JPS5718182A true JPS5718182A (en) 1982-01-29

Family

ID=14086774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9359980A Pending JPS5718182A (en) 1980-07-09 1980-07-09 Color signal generator

Country Status (1)

Country Link
JP (1) JPS5718182A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58175392A (en) * 1982-04-07 1983-10-14 Nec Corp digital color encoder
JPS60236391A (en) * 1984-04-27 1985-11-25 アムペックス　コーポレーシヨン Method and device for reproducing color by selecting
US4727361A (en) * 1986-01-31 1988-02-23 Kabushiki Kaisha Toshiba Digital video encoder circuit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017134A (en) * 1973-06-12 1975-02-22
JPS5030422A (en) * 1973-07-13 1975-03-26
JPS5136021A (en) * 1974-09-20 1976-03-26 Mitsubishi Electric Corp Karaaterebijonjuzoki
JPS5244120A (en) * 1975-10-06 1977-04-06 Nippon Hoso Kyokai <Nhk> Color information detection circuit
JPS52127740A (en) * 1976-04-19 1977-10-26 Chubu Nippon Housou Kk Phase modulating system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017134A (en) * 1973-06-12 1975-02-22
JPS5030422A (en) * 1973-07-13 1975-03-26
JPS5136021A (en) * 1974-09-20 1976-03-26 Mitsubishi Electric Corp Karaaterebijonjuzoki
JPS5244120A (en) * 1975-10-06 1977-04-06 Nippon Hoso Kyokai <Nhk> Color information detection circuit
JPS52127740A (en) * 1976-04-19 1977-10-26 Chubu Nippon Housou Kk Phase modulating system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58175392A (en) * 1982-04-07 1983-10-14 Nec Corp digital color encoder
JPS60236391A (en) * 1984-04-27 1985-11-25 アムペックス　コーポレーシヨン Method and device for reproducing color by selecting
US4727361A (en) * 1986-01-31 1988-02-23 Kabushiki Kaisha Toshiba Digital video encoder circuit

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