JPS6454971A - Synchronizing correction device for facsimile broadcast - Google Patents

Synchronizing correction device for facsimile broadcast

Info

Publication number
JPS6454971A
JPS6454971A JP62211637A JP21163787A JPS6454971A JP S6454971 A JPS6454971 A JP S6454971A JP 62211637 A JP62211637 A JP 62211637A JP 21163787 A JP21163787 A JP 21163787A JP S6454971 A JPS6454971 A JP S6454971A
Authority
JP
Japan
Prior art keywords
signal
facsimile
pulse
gradation data
printer
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
JP62211637A
Other languages
Japanese (ja)
Inventor
Yoshinori Ando
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP62211637A priority Critical patent/JPS6454971A/en
Publication of JPS6454971A publication Critical patent/JPS6454971A/en
Pending legal-status Critical Current

Links

Landscapes

  • Facsimiles In General (AREA)
  • Facsimile Transmission Control (AREA)

Abstract

PURPOSE:To eliminate the distortion of a received picture by using a difference detection circuit so as to detect a difference between a transmission speed and a reception speed of a facsimile signal and using the detected output so as to eliminate or interpolate a gradation data thereby outputting the eliminated or interpolated gradation data onto a printer. CONSTITUTION:A facsimile broadcast reception circuit 1 extracts a facsimile FM signal Sf and a counter 3 and latches 4, 5 digitize the signal Sf at a period of a pulse Pb. The digital data is inputted to a port 64 of a microcomputer 6 as an interruption pulse Df. The program is executed by a CPU 61 for each pulse Df. In executing the program, the software increments the count set in a RAM 63 to measure the length of one horizontal period from a synchronizing signal Sh to the next synchronizing signal Sh in the signal Sf. When the transmission speed and reception speed are equal as the result of measurement, a count Hc for one horizontal period is outputted to convert the frequency data Df of the latch 5 into a gradation data for a printer 7.
JP62211637A 1987-08-26 1987-08-26 Synchronizing correction device for facsimile broadcast Pending JPS6454971A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62211637A JPS6454971A (en) 1987-08-26 1987-08-26 Synchronizing correction device for facsimile broadcast

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62211637A JPS6454971A (en) 1987-08-26 1987-08-26 Synchronizing correction device for facsimile broadcast

Publications (1)

Publication Number Publication Date
JPS6454971A true JPS6454971A (en) 1989-03-02

Family

ID=16609076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62211637A Pending JPS6454971A (en) 1987-08-26 1987-08-26 Synchronizing correction device for facsimile broadcast

Country Status (1)

Country Link
JP (1) JPS6454971A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2289020B (en) * 1994-04-14 1997-07-30 Seiko Epson Corp Serial printer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2289020B (en) * 1994-04-14 1997-07-30 Seiko Epson Corp Serial printer

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