JPS5718184A - Recording and reproducing device of color video signal - Google Patents

Recording and reproducing device of color video signal

Info

Publication number
JPS5718184A
JPS5718184A JP9297280A JP9297280A JPS5718184A JP S5718184 A JPS5718184 A JP S5718184A JP 9297280 A JP9297280 A JP 9297280A JP 9297280 A JP9297280 A JP 9297280A JP S5718184 A JPS5718184 A JP S5718184A
Authority
JP
Japan
Prior art keywords
delay
fsc
line
delay line
extent
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
JP9297280A
Other languages
Japanese (ja)
Inventor
Tomoyoshi Yanagawa
Takehiko Yamamoto
Kimitaka Kojima
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP9297280A priority Critical patent/JPS5718184A/en
Publication of JPS5718184A publication Critical patent/JPS5718184A/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 apply a device to all systems of NTSC, PAL and SECAM, by using a part of delay lines in common. CONSTITUTION:Relation between horizontal scanning frequency fh and chrominnance subcarrier frequency fsc of a PAL system is 1/4 line off-set of fsc=(n-1/4) fh+25Hz, and on the other hand, it is 1/2 line off-set in case of an NTSC system. Accordingly, when fsc of the NTSC system is converted to that which is equal to fsc of the PAL system, the extent of delay of a delay line 10 is made 1H-1/4lambda, (lambda=1/fsc) by disregarding a component of 25Hz. Since a chrominance subcarrier is 180 deg. out of phase at input/output sides of the delay line 10, a chrominance signal can be obtained from a subtracter 24. When the extent of delay of a delay line 11 is made 1H-1/4lambda, a total extent of delay of the delay lines 10, 11 becomes 2H-1/2lambda the chrominance subcarrier becomes in phase at an input side of the delay line 10 and an output side of the delay line 11, and a chrominance signal can be obtained from an adder 12.
JP9297280A 1980-07-07 1980-07-07 Recording and reproducing device of color video signal Pending JPS5718184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9297280A JPS5718184A (en) 1980-07-07 1980-07-07 Recording and reproducing device of color video signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9297280A JPS5718184A (en) 1980-07-07 1980-07-07 Recording and reproducing device of color video signal

Publications (1)

Publication Number Publication Date
JPS5718184A true JPS5718184A (en) 1982-01-29

Family

ID=14069313

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9297280A Pending JPS5718184A (en) 1980-07-07 1980-07-07 Recording and reproducing device of color video signal

Country Status (1)

Country Link
JP (1) JPS5718184A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61236290A (en) * 1985-04-06 1986-10-21 ノキア　ウンテルハルトゥングスエレクトロニック（ドイッチュランド）ゲー．エム．ベー．ハー Comb-shaped filter circuit
US4691238A (en) * 1982-10-21 1987-09-01 Dainippon Screen Mfg. Co., Ltd. Method and apparatus of storing image data into a memory in a layout scanner system
JPH0221820U (en) * 1988-07-14 1990-02-14
JPH06348071A (en) * 1993-06-08 1994-12-22 Tohoku Ricoh Co Ltd Electrostatic latent image developing device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5433617A (en) * 1977-08-20 1979-03-12 Akai Electric Video tape recorder
JPS5472623A (en) * 1977-11-21 1979-06-11 Sony Corp Record regenerative device for color video signal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5433617A (en) * 1977-08-20 1979-03-12 Akai Electric Video tape recorder
JPS5472623A (en) * 1977-11-21 1979-06-11 Sony Corp Record regenerative device for color video signal

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4691238A (en) * 1982-10-21 1987-09-01 Dainippon Screen Mfg. Co., Ltd. Method and apparatus of storing image data into a memory in a layout scanner system
JPS61236290A (en) * 1985-04-06 1986-10-21 ノキア　ウンテルハルトゥングスエレクトロニック（ドイッチュランド）ゲー．エム．ベー．ハー Comb-shaped filter circuit
JPH0221820U (en) * 1988-07-14 1990-02-14
JPH06348071A (en) * 1993-06-08 1994-12-22 Tohoku Ricoh Co Ltd Electrostatic latent image developing device

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