JPS6459671A - Information signal recorder - Google Patents

Information signal recorder

Info

Publication number
JPS6459671A
JPS6459671A JP62215159A JP21515987A JPS6459671A JP S6459671 A JPS6459671 A JP S6459671A JP 62215159 A JP62215159 A JP 62215159A JP 21515987 A JP21515987 A JP 21515987A JP S6459671 A JPS6459671 A JP S6459671A
Authority
JP
Japan
Prior art keywords
band
signal
reproducing
recording
luminance
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
JP62215159A
Other languages
Japanese (ja)
Inventor
Tokihiko Ogura
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP62215159A priority Critical patent/JPS6459671A/en
Publication of JPS6459671A publication Critical patent/JPS6459671A/en
Pending legal-status Critical Current

Links

Landscapes

  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE:To always obtain the information with a satisfactory S/N ratio and to suppress the inversion of a luminance signal due to the unbalance of a sideband wave by setting a recording level and recording it so that the signal of the side band lower than a single carrier frequency for the FM information signal of an information signal recording device can be increased more than the modulation. CONSTITUTION:When a high resolution black white image is recorded, the video signal of a base band luminance band is FM-modulated by a luminance signal FM modulator 1-1 and set to an optimum recording current value by a recording amplifier 20. For the setting, to a current value in which the maximum reproducing output of respective frequencies is obtained at the frequency band of the side lower than the carrier frequency, by the control of a switching pulse generator 14, a switch is changed over and set by the resistance in the amplifier 20. At the time of the reproducing mode, a switch S1 is set to a reproducing side, a switch S2 is set to the reproducing side of a single FM mode side, an FM signal from a magnetic head 3 is amplified to the prescribed level with a step-up transformer 6 and a pre-amplifier 7, inputted to an equalizer circuit 14, a luminance band is widened and the reproducing level at the lower side band is increased.
JP62215159A 1987-08-31 1987-08-31 Information signal recorder Pending JPS6459671A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62215159A JPS6459671A (en) 1987-08-31 1987-08-31 Information signal recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62215159A JPS6459671A (en) 1987-08-31 1987-08-31 Information signal recorder

Publications (1)

Publication Number Publication Date
JPS6459671A true JPS6459671A (en) 1989-03-07

Family

ID=16667635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62215159A Pending JPS6459671A (en) 1987-08-31 1987-08-31 Information signal recorder

Country Status (1)

Country Link
JP (1) JPS6459671A (en)

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