JPS5566190A - Magnetic record/reproduction circuit - Google Patents

Magnetic record/reproduction circuit

Info

Publication number
JPS5566190A
JPS5566190A JP13895478A JP13895478A JPS5566190A JP S5566190 A JPS5566190 A JP S5566190A JP 13895478 A JP13895478 A JP 13895478A JP 13895478 A JP13895478 A JP 13895478A JP S5566190 A JPS5566190 A JP S5566190A
Authority
JP
Japan
Prior art keywords
circuit
signal
terminal
carrier chrominance
supplied
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
JP13895478A
Other languages
Japanese (ja)
Inventor
Shinichiro Taguchi
Masato Tanabe
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 JP13895478A priority Critical patent/JPS5566190A/en
Publication of JPS5566190A publication Critical patent/JPS5566190A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase the picture quality as well as realize the miniaturization of the device by sharing the comb-line type filter by the circuits of the record and reproduction systems in the phase inverter recording system.
CONSTITUTION: The record color video signal supplied through terminal P1 is selected by selector circuit 43 and then supplied to 1H-delay circuit 42 and sum compounding circuit 43. Then the 1H-delayed signal is compounded with the direct signal at circuit 43, and the luminance signal about double as large as the luminance signal recorded is obtained at terminal P4. While the carrier chrominance signal component is offset at circuit 43 and is not delivered. The output of terminal P4 is applied to FM mixer circuit to be mixed with the carrier chrominance signal which underwent the low-band conversion. Then at the reproduction time, the carrier chrominance signal returned to the original frequency and phase is applied to terminal P2 and then supplied to circuit 42 and difference compounding circuit 44 via circuit 41. The difference is obtained at circuit 44 between the signals before and after passing through the 1H-delay line, and the crosstalk component is offset. Thus the signal about double the original reproduced carrier chrominance signal can be obtained at terminal P5.
COPYRIGHT: (C)1980,JPO&Japio
JP13895478A 1978-11-13 1978-11-13 Magnetic record/reproduction circuit Pending JPS5566190A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13895478A JPS5566190A (en) 1978-11-13 1978-11-13 Magnetic record/reproduction circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13895478A JPS5566190A (en) 1978-11-13 1978-11-13 Magnetic record/reproduction circuit

Publications (1)

Publication Number Publication Date
JPS5566190A true JPS5566190A (en) 1980-05-19

Family

ID=15234035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13895478A Pending JPS5566190A (en) 1978-11-13 1978-11-13 Magnetic record/reproduction circuit

Country Status (1)

Country Link
JP (1) JPS5566190A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6184985A (en) * 1984-10-02 1986-04-30 Victor Co Of Japan Ltd Recording and reproducing device of carrier chrominance signal
US4786978A (en) * 1985-08-02 1988-11-22 Canon Kabushiki Kaisha Reproduction apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6184985A (en) * 1984-10-02 1986-04-30 Victor Co Of Japan Ltd Recording and reproducing device of carrier chrominance signal
JPH0438196B2 (en) * 1984-10-02 1992-06-23 Victor Company Of Japan
US4786978A (en) * 1985-08-02 1988-11-22 Canon Kabushiki Kaisha Reproduction apparatus

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