JPS5545119A - Time-axis control system - Google Patents

Time-axis control system

Info

Publication number
JPS5545119A
JPS5545119A JP11746178A JP11746178A JPS5545119A JP S5545119 A JPS5545119 A JP S5545119A JP 11746178 A JP11746178 A JP 11746178A JP 11746178 A JP11746178 A JP 11746178A JP S5545119 A JPS5545119 A JP S5545119A
Authority
JP
Japan
Prior art keywords
signal
control pulses
amplitude
time
pulses
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
JP11746178A
Other languages
Japanese (ja)
Other versions
JPS5951042B2 (en
Inventor
Toshiki Aoi
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.)
TDK Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to JP53117461A priority Critical patent/JPS5951042B2/en
Publication of JPS5545119A publication Critical patent/JPS5545119A/en
Publication of JPS5951042B2 publication Critical patent/JPS5951042B2/en
Expired 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 attain time-axis equalization without decreasing a S/N ratio by extracting control pulses from a regeneration output with the amplitude of reference control pulses made much greater than signal amplitude and then by using them as a gate signal to extract control pulses of another channel.
CONSTITUTION: A broad-band TV signal is divided by Hadamard's transform circuit H into narrow-band channels 1, 2...(n) and signals of respective channels, after control pulses for time-axis equalization are inserted at fixed intervals of time, are recorded through heads (h) provided corresponding to tracks of magnetic tape B. Here, the pulse width of control pulses to be inserted is represented to (γ) and the insertion position should be nearly in the middle of insertion interval T of horizontal synchronizing pulses of the TV signal. Further, the amplitude of pulses P is set nearly equal to that of signal S between channels 1 and (n-1) and much gearter than the maximum amplitude of signal S as to channel (n). Consequently, error recognition due to abnormal noises, etc., is eliminated, the S/N ratio of the signal improves and an excellent picture can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP53117461A 1978-09-26 1978-09-26 Time axis control method Expired JPS5951042B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53117461A JPS5951042B2 (en) 1978-09-26 1978-09-26 Time axis control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53117461A JPS5951042B2 (en) 1978-09-26 1978-09-26 Time axis control method

Publications (2)

Publication Number Publication Date
JPS5545119A true JPS5545119A (en) 1980-03-29
JPS5951042B2 JPS5951042B2 (en) 1984-12-12

Family

ID=14712242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53117461A Expired JPS5951042B2 (en) 1978-09-26 1978-09-26 Time axis control method

Country Status (1)

Country Link
JP (1) JPS5951042B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0159669B2 (en) * 1980-09-24 1989-12-19 Sony Corp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0159669B2 (en) * 1980-09-24 1989-12-19 Sony Corp

Also Published As

Publication number Publication date
JPS5951042B2 (en) 1984-12-12

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