JPS5627581A - Signal processor - Google Patents

Signal processor

Info

Publication number
JPS5627581A
JPS5627581A JP10372379A JP10372379A JPS5627581A JP S5627581 A JPS5627581 A JP S5627581A JP 10372379 A JP10372379 A JP 10372379A JP 10372379 A JP10372379 A JP 10372379A JP S5627581 A JPS5627581 A JP S5627581A
Authority
JP
Japan
Prior art keywords
waveform shaping
duty ratio
signal
waveform
level
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
JP10372379A
Other languages
Japanese (ja)
Other versions
JPS5756268B2 (en
Inventor
Masayoshi Hirashima
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP10372379A priority Critical patent/JPS5627581A/en
Publication of JPS5627581A publication Critical patent/JPS5627581A/en
Publication of JPS5756268B2 publication Critical patent/JPS5756268B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/025—Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame
    • H04N7/035—Circuits for the digital non-picture data signal, e.g. for slicing of the data signal, for regeneration of the data-clock signal, for error detection or correction of the data signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)

Abstract

PURPOSE:To obtain a correct reception state by detecting the duty ratio of a CR (clock line-in) signal after waveform shaping and then by controlling the bais of a waveform shaping circuit so that it will have a fixed value at any time. CONSTITUTION:A video signal including a received binary information signal obtained from video detecting circuit 1 is applied to waveform shaping circuit 4. The duty ratio of a CR signal component of a waveform-shaping output is detected and then the waveform shaping level of the input signal is varied to fix the duty ratio to 50%. Therefore, even if the input signal varies in level and magnitude, the reception can be carried out stably.
JP10372379A 1979-08-15 1979-08-15 Signal processor Granted JPS5627581A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10372379A JPS5627581A (en) 1979-08-15 1979-08-15 Signal processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10372379A JPS5627581A (en) 1979-08-15 1979-08-15 Signal processor

Publications (2)

Publication Number Publication Date
JPS5627581A true JPS5627581A (en) 1981-03-17
JPS5756268B2 JPS5756268B2 (en) 1982-11-29

Family

ID=14361587

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10372379A Granted JPS5627581A (en) 1979-08-15 1979-08-15 Signal processor

Country Status (1)

Country Link
JP (1) JPS5627581A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594283A (en) * 1982-06-29 1984-01-11 Fujitsu General Ltd Slice level control circuit in character signal extracting circuit
JPH0559439A (en) * 1991-08-27 1993-03-09 Kawasaki Steel Corp Method for controlling cooling of steel pipe in roller hearth type heat treatment furnace

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594283A (en) * 1982-06-29 1984-01-11 Fujitsu General Ltd Slice level control circuit in character signal extracting circuit
JPS637075B2 (en) * 1982-06-29 1988-02-15 Fujitsu General Ltd
JPH0559439A (en) * 1991-08-27 1993-03-09 Kawasaki Steel Corp Method for controlling cooling of steel pipe in roller hearth type heat treatment furnace

Also Published As

Publication number Publication date
JPS5756268B2 (en) 1982-11-29

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