JPS5517802A - Magnetic recorder and reproducing device - Google Patents

Magnetic recorder and reproducing device

Info

Publication number
JPS5517802A
JPS5517802A JP8841078A JP8841078A JPS5517802A JP S5517802 A JPS5517802 A JP S5517802A JP 8841078 A JP8841078 A JP 8841078A JP 8841078 A JP8841078 A JP 8841078A JP S5517802 A JPS5517802 A JP S5517802A
Authority
JP
Japan
Prior art keywords
resonance
head
write
circuit
frequency
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
JP8841078A
Other languages
Japanese (ja)
Other versions
JPS6118806B2 (en
Inventor
Yasushi Yude
Atsushi Yoshioka
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 JP8841078A priority Critical patent/JPS5517802A/en
Publication of JPS5517802A publication Critical patent/JPS5517802A/en
Publication of JPS6118806B2 publication Critical patent/JPS6118806B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE: To reduce waveform distortion to improve S/N by setting a reverse resonance write circuit and a head resonance read circuit and offsetting the phase characteristics between the write circuit and read circuit.
CONSTITUTION: The device to carry out frequency modulation (FM) of a video signal, record the modulated signal by means of writing it in magnetic medium 11 and regenerate the recorded signal by means of reading it is improved. When the modulated signal is recorded by write head 12, reverse resonance write circuit 4 is attached in order to supply a write current, which supply reverse resonance frequency characteristics having reverse resonance frequency to the surroundings of the carrier frequency of modulated signal, to write head 12. When the modulated signal is read out by read head 13, frequency characteristics of the amplitude and phase of head resonance read circuit 5 are offset by the amplitude and phase characteristics of write circuit 4 with reverse resonance characteristics, so that the evenness of frequency-to-amplitude characteristics and the linearity of phase characteristics are maintained by head resonance read circuit 5.
COPYRIGHT: (C)1980,JPO&Japio
JP8841078A 1978-07-21 1978-07-21 Magnetic recorder and reproducing device Granted JPS5517802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8841078A JPS5517802A (en) 1978-07-21 1978-07-21 Magnetic recorder and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8841078A JPS5517802A (en) 1978-07-21 1978-07-21 Magnetic recorder and reproducing device

Publications (2)

Publication Number Publication Date
JPS5517802A true JPS5517802A (en) 1980-02-07
JPS6118806B2 JPS6118806B2 (en) 1986-05-14

Family

ID=13942020

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8841078A Granted JPS5517802A (en) 1978-07-21 1978-07-21 Magnetic recorder and reproducing device

Country Status (1)

Country Link
JP (1) JPS5517802A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6129406A (en) * 1984-07-19 1986-02-10 Sony Corp Magnetic recorder
JPS6264783U (en) * 1985-10-12 1987-04-22

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6129406A (en) * 1984-07-19 1986-02-10 Sony Corp Magnetic recorder
JPS6264783U (en) * 1985-10-12 1987-04-22

Also Published As

Publication number Publication date
JPS6118806B2 (en) 1986-05-14

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