JPS5588462A - Scanning timing detector - Google Patents

Scanning timing detector

Info

Publication number
JPS5588462A
JPS5588462A JP16268078A JP16268078A JPS5588462A JP S5588462 A JPS5588462 A JP S5588462A JP 16268078 A JP16268078 A JP 16268078A JP 16268078 A JP16268078 A JP 16268078A JP S5588462 A JPS5588462 A JP S5588462A
Authority
JP
Japan
Prior art keywords
signals
picture
photo sensor
scanning timing
sensor
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
JP16268078A
Other languages
Japanese (ja)
Inventor
Yojiro Sato
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP16268078A priority Critical patent/JPS5588462A/en
Publication of JPS5588462A publication Critical patent/JPS5588462A/en
Pending legal-status Critical Current

Links

Landscapes

  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE: To secure the accurate transmission timing for the picture signals including gradation picture image by providing the photo sensor to detect the scanning timing and also using the analog delay line.
CONSTITUTION: Photo sensor 7 reads out the picture pattern continuously in preceding to photo sensor 8 and then supplies it to analog delay line 14 with taps via reading amplifier 13. Signals Ad1∼Adn of different delay time are obtained from each tap of line 14. While the picture signals of sensor 7 are applied to comparator circuit 16 via reading amplifier 15, and the output B is compared with signals Ad1∼Adn. And the minimum value is decided among comparison results X1∼Xn via deciding circuit 17, and the programming is given to counter 18 via the address to generate the synchronous signals for reading scanning timing.
COPYRIGHT: (C)1980,JPO&Japio
JP16268078A 1978-12-26 1978-12-26 Scanning timing detector Pending JPS5588462A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16268078A JPS5588462A (en) 1978-12-26 1978-12-26 Scanning timing detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16268078A JPS5588462A (en) 1978-12-26 1978-12-26 Scanning timing detector

Publications (1)

Publication Number Publication Date
JPS5588462A true JPS5588462A (en) 1980-07-04

Family

ID=15759246

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16268078A Pending JPS5588462A (en) 1978-12-26 1978-12-26 Scanning timing detector

Country Status (1)

Country Link
JP (1) JPS5588462A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57164657A (en) * 1981-01-02 1982-10-09 Nadoreeru Moruton Image analyzing method and device
JPS6016055A (en) * 1983-07-08 1985-01-26 Nippon Telegr & Teleph Corp <Ntt> Picture reader

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57164657A (en) * 1981-01-02 1982-10-09 Nadoreeru Moruton Image analyzing method and device
JPS6016055A (en) * 1983-07-08 1985-01-26 Nippon Telegr & Teleph Corp <Ntt> Picture reader

Similar Documents

Publication Publication Date Title
JPS5579567A (en) Shading correction system
JPS566585A (en) Television camera
JPS5588462A (en) Scanning timing detector
JPS543418A (en) Picture reading device
JPS53141520A (en) Picture scanning read system of semiconductor photo detector
JPS5550795A (en) Rbg chroma key signal generator
JPS5474622A (en) Shading correction unit
JPS5459169A (en) Size measuring apparatus
JPS54158115A (en) Shading correction device
JPS55164981A (en) Read-in unit
JPS5418759A (en) Optical scanner
JPS5742282A (en) A/d converter for output video signal of vtr
JPS561303A (en) Method and device for detecting position
JPS57119565A (en) Picture-signal correction system
JPS5614768A (en) Original read system
JPS5597782A (en) Solid-state pickup unit
JPS5627478A (en) Scan curvature detector
JPS53109420A (en) Object automatic tracking unit
JPS55121579A (en) Picture reader
JPS5574266A (en) Rejection method for picture noise
JPS5597785A (en) Chromaticity-signal phase control circuit
JPS5556762A (en) Picture element signal conversion method for digital reproducer
JPS5668875A (en) Binary system
JPS5582378A (en) Edge processing method in picture processing
JPS55102976A (en) Ghost removal unit