JPS5644284A - Speed error detector - Google Patents

Speed error detector

Info

Publication number
JPS5644284A
JPS5644284A JP12001479A JP12001479A JPS5644284A JP S5644284 A JPS5644284 A JP S5644284A JP 12001479 A JP12001479 A JP 12001479A JP 12001479 A JP12001479 A JP 12001479A JP S5644284 A JPS5644284 A JP S5644284A
Authority
JP
Japan
Prior art keywords
monostable multivibrator
output signal
edge
output
clock
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
JP12001479A
Other languages
Japanese (ja)
Inventor
Kazuyuki Takeshita
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 Denshi KK
Original Assignee
Hitachi Denshi KK
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 Denshi KK filed Critical Hitachi Denshi KK
Priority to JP12001479A priority Critical patent/JPS5644284A/en
Publication of JPS5644284A publication Critical patent/JPS5644284A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/93—Regeneration of the television signal or of selected parts thereof
    • H04N5/95—Time-base error compensation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE:To enhance the effect on practical use considerably, by generating a high- precision error for reproducing in all frequencies in the speed error detector of the time base correcting unit of the magnetic recording device. CONSTITUTION:Monostable multivibrator 24 is triggerred by a proper output of counter 21, and the output signal has the output pulse width set to a value times as long as the normal clock period (n is a natural number). A phase difference pulse generator is provided which starts at the trailing edge of the output signal of monostable multivibrator 24 and stops at the edge of the clock signal or starts at the edge of the clock signal and stops at the trailing edge of the output signal of monostable multivibrator 24, and offset of n-clock components is given to this phase difference pulse generator. As a result, a high-precision error can be generated in all frequencies, so that the effect on the practical use can be enhanced considerably.
JP12001479A 1979-09-20 1979-09-20 Speed error detector Pending JPS5644284A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12001479A JPS5644284A (en) 1979-09-20 1979-09-20 Speed error detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12001479A JPS5644284A (en) 1979-09-20 1979-09-20 Speed error detector

Publications (1)

Publication Number Publication Date
JPS5644284A true JPS5644284A (en) 1981-04-23

Family

ID=14775757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12001479A Pending JPS5644284A (en) 1979-09-20 1979-09-20 Speed error detector

Country Status (1)

Country Link
JP (1) JPS5644284A (en)

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