JPS55122212A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

Publication number
JPS55122212A
JPS55122212A JP2862579A JP2862579A JPS55122212A JP S55122212 A JPS55122212 A JP S55122212A JP 2862579 A JP2862579 A JP 2862579A JP 2862579 A JP2862579 A JP 2862579A JP S55122212 A JPS55122212 A JP S55122212A
Authority
JP
Japan
Prior art keywords
head
signal
phase
resonance
characteristic
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
JP2862579A
Other languages
Japanese (ja)
Inventor
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 JP2862579A priority Critical patent/JPS55122212A/en
Publication of JPS55122212A publication Critical patent/JPS55122212A/en
Pending legal-status Critical Current

Links

Landscapes

  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE: To use effectively the FM equlization effect dependent upon head resonance action to improve S/N and eliminate waveform distortion to realize high- density magnetic recording and reproducing with a simple consititution, by inserting a phase shift circuit to the recording signal system.
CONSTITUTION: Phase displacement is given to video signal lW", which was subjected to FM, according to the frequency by phase shift circuit 6, and signal lW" is subjected to prescribed phase change in the carrier wave and between both side bands. This phase characteristic is so determined that the sum of the phase change quantity of this characteristic and the phase change quantity given by head resonance reproducing amplifier 7 may be linear. Output signal lW' of circuit 6 is supplied to head 12 through flat-characteristic amplifier 2 for recording and is recorded on tape 11. At a reproducing time, the signal becomes resonance signal voltage lR' at the input end of head resonance amplifier 7 including head 13 and is amplified to obtain output signal voltage lR".
COPYRIGHT: (C)1980,JPO&Japio
JP2862579A 1979-03-14 1979-03-14 Magnetic recording and reproducing device Pending JPS55122212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2862579A JPS55122212A (en) 1979-03-14 1979-03-14 Magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2862579A JPS55122212A (en) 1979-03-14 1979-03-14 Magnetic recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS55122212A true JPS55122212A (en) 1980-09-19

Family

ID=12253728

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2862579A Pending JPS55122212A (en) 1979-03-14 1979-03-14 Magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS55122212A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60184375U (en) * 1984-05-17 1985-12-06 三洋電機株式会社 Video signal correction circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60184375U (en) * 1984-05-17 1985-12-06 三洋電機株式会社 Video signal correction circuit
JPH0427262Y2 (en) * 1984-05-17 1992-06-30

Similar Documents

Publication Publication Date Title
JPS5736407A (en) Magnetic reproducer
JPS5350919A (en) Video signal recorder unit
GB852802A (en) Arrangement for recording and reproducing a frequency band extending down to zero frequency
GB2055238B (en) Method and arrangement for magnetic digital recording with high frequency biasing
JPS55122212A (en) Magnetic recording and reproducing device
JPS5421316A (en) Magnetic recorder-reproducer
JPS53149308A (en) Recorder-reproducer of digital signals
JPS5317715A (en) Magnetic recorder/reproducer
JPS5542337A (en) Magnetic recording reproducing device
JPS5417709A (en) Changeover circuit of tape recorder
JPS55113104A (en) Magnetic recording and reproducing device
JPS5580804A (en) Tape recorder capable of time recording
JPS5694519A (en) Magnetic recording and reproducing circuit
JPS5283201A (en) Magnetic tape
JPS53115209A (en) Magnetic recording method
JPS52152714A (en) Magnetic recording and reproducing system
JPS5548806A (en) Magnetic recording and reproducing unit
JPS5680806A (en) Tape recorder
JPS5276908A (en) Magnetic recording and reproduction apparatus
JPS534416A (en) Inserting and recording unit for vtr title
JPS6459602A (en) Recording or reproducing device
JPS5239310A (en) Video recorder
JPS57135406A (en) Tape recorder
JPS52123216A (en) Magnetic tape device
JPS5390905A (en) Measurig method for magnetic characteristic of magnetic recording medium