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JPS5585168A - Shaping circuit for binary signal - Google Patents

Shaping circuit for binary signal

Info

Publication number
JPS5585168A
JPS5585168A JP15684878A JP15684878A JPS5585168A JP S5585168 A JPS5585168 A JP S5585168A JP 15684878 A JP15684878 A JP 15684878A JP 15684878 A JP15684878 A JP 15684878A JP S5585168 A JPS5585168 A JP S5585168A
Authority
JP
Japan
Prior art keywords
level
video signal
black
white
signal
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
JP15684878A
Other languages
Japanese (ja)
Inventor
Michiaki Okano
Katsuhiko Kuma
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15684878A priority Critical patent/JPS5585168A/en
Publication of JPS5585168A publication Critical patent/JPS5585168A/en
Pending legal-status Critical Current

Links

Landscapes

  • Facsimile Image Signal Circuits (AREA)
  • Dc Digital Transmission (AREA)

Abstract

PURPOSE: To enable to obtain clear video signal, by binarizing the signal in response to the level of video signal sampled in a given density.
CONSTITUTION: The input video signal a is sample-held with the clock c to be the signal b and in A/D conversion. Thus, the level of video signal is known. The level at time point t3 is 10 and that at t4 is 240. Taking the part having 40 or more level difference as the changing point of binary information, t3 can be judged as white and t4 as black. Similarly, if t12 is black, then t13 is white. Thus, if level difference more than a given value is caused, white and black is judged with the direction of the difference.
COPYRIGHT: (C)1980,JPO&Japio
JP15684878A 1978-12-21 1978-12-21 Shaping circuit for binary signal Pending JPS5585168A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15684878A JPS5585168A (en) 1978-12-21 1978-12-21 Shaping circuit for binary signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15684878A JPS5585168A (en) 1978-12-21 1978-12-21 Shaping circuit for binary signal

Publications (1)

Publication Number Publication Date
JPS5585168A true JPS5585168A (en) 1980-06-26

Family

ID=15636687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15684878A Pending JPS5585168A (en) 1978-12-21 1978-12-21 Shaping circuit for binary signal

Country Status (1)

Country Link
JP (1) JPS5585168A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58218261A (en) * 1982-06-11 1983-12-19 Matsushita Electric Ind Co Ltd Data waveform shaping circit
JPS598474A (en) * 1982-07-07 1984-01-17 Canon Inc Binary-coder for analog signal
JPS6083469A (en) * 1983-10-14 1985-05-11 Ricoh Co Ltd Binary coding device for picture signal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5135213A (en) * 1974-09-20 1976-03-25 Tokyo Shibaura Electric Co

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5135213A (en) * 1974-09-20 1976-03-25 Tokyo Shibaura Electric Co

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58218261A (en) * 1982-06-11 1983-12-19 Matsushita Electric Ind Co Ltd Data waveform shaping circit
JPS598474A (en) * 1982-07-07 1984-01-17 Canon Inc Binary-coder for analog signal
JPS6083469A (en) * 1983-10-14 1985-05-11 Ricoh Co Ltd Binary coding device for picture signal

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