JPS6466801A - Recording amplifier for magnetic recording/reproducing device - Google Patents

Recording amplifier for magnetic recording/reproducing device

Info

Publication number
JPS6466801A
JPS6466801A JP22329787A JP22329787A JPS6466801A JP S6466801 A JPS6466801 A JP S6466801A JP 22329787 A JP22329787 A JP 22329787A JP 22329787 A JP22329787 A JP 22329787A JP S6466801 A JPS6466801 A JP S6466801A
Authority
JP
Japan
Prior art keywords
signal
beat
difference
carrier wave
recording
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
JP22329787A
Other languages
Japanese (ja)
Other versions
JP2622258B2 (en
Inventor
Yasuo Mihashi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62223297A priority Critical patent/JP2622258B2/en
Publication of JPS6466801A publication Critical patent/JPS6466801A/en
Application granted granted Critical
Publication of JP2622258B2 publication Critical patent/JP2622258B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To improve S/N of a chroma signal and a luminance signal without lowering the performance of an audio FM signal by making a filter circuit absorb and attenuate a beat signal due to the difference of the carrier wave frequencies of two channels of L and R, and the beat signal due to the difference of a second higher harmonic wave and the respective carrier wave frequency. CONSTITUTION:The filter circuit 10 which has a pole in plural frequencies with larger energy among the beat signal due to the frequency difference of the two channels R, L of the audio FM signal interposed in the sound signal path at the time of a recording mode, and plural beat signals, generated based on the frequency difference of the double higher harmonic wave signal and a basic carrier wave signal, is provided. Thus, since the beat signal is recorded in a magnetic tape 20 as being attenuated, and therefore, its interference to the chroma signal and the luminance signal is reduced, the S/N can be improved, and the picture quality of a VTR is improved.
JP62223297A 1987-09-07 1987-09-07 Recording amplifier for magnetic recording / reproducing device Expired - Lifetime JP2622258B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62223297A JP2622258B2 (en) 1987-09-07 1987-09-07 Recording amplifier for magnetic recording / reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62223297A JP2622258B2 (en) 1987-09-07 1987-09-07 Recording amplifier for magnetic recording / reproducing device

Publications (2)

Publication Number Publication Date
JPS6466801A true JPS6466801A (en) 1989-03-13
JP2622258B2 JP2622258B2 (en) 1997-06-18

Family

ID=16795934

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62223297A Expired - Lifetime JP2622258B2 (en) 1987-09-07 1987-09-07 Recording amplifier for magnetic recording / reproducing device

Country Status (1)

Country Link
JP (1) JP2622258B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141089A (en) * 1982-02-17 1983-08-22 Hitachi Ltd Recording circuit for video and audio signals
JPS6091782A (en) * 1983-10-26 1985-05-23 Hitachi Ltd magnetic recording device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141089A (en) * 1982-02-17 1983-08-22 Hitachi Ltd Recording circuit for video and audio signals
JPS6091782A (en) * 1983-10-26 1985-05-23 Hitachi Ltd magnetic recording device

Also Published As

Publication number Publication date
JP2622258B2 (en) 1997-06-18

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