GB1430272A - Synchronising systems - Google Patents

Synchronising systems

Info

Publication number
GB1430272A
GB1430272A GB1786173A GB1786173A GB1430272A GB 1430272 A GB1430272 A GB 1430272A GB 1786173 A GB1786173 A GB 1786173A GB 1786173 A GB1786173 A GB 1786173A GB 1430272 A GB1430272 A GB 1430272A
Authority
GB
United Kingdom
Prior art keywords
sync
pair
pulse
synchronism
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.)
Expired
Application number
GB1786173A
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
Publication of GB1430272A publication Critical patent/GB1430272A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/36—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device for synchronising or phasing transmitter and receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Transmission Control (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

1430272 Facsimile transmission apparatus; synchronizing; variable delay systems RICOH KK 13 April 1973 [28 April 1972] 17861/73 Headings H4F H4P and H4R A synchronizing system for facsimile transmission apparatus or magnetic recording and reproducing apparatus in which groups of data signals and corresponding synchronization pulses are cyclically produced, wherein each or each but one data signal in each group is delayed by an amount corresponding to the amount by which it is out of synchronism with its synchronization pulse. A facsimile apparatus is described in which a pair of line period video signals and a pair of corresponding sync. pulses are cyclically produced by a rotary drum arrangement including two diametrically opposed slits which sequentially scan a document, the sync. pulses being produced by sync. marks on a flange on the drum as they move past a read-out means. The video signals are passed to two channels, and assuming one video signal of each pair is in synchronism with its associated sync. pulse, the other video signal is delayed to bring it into synchronism with its sync. pulse. Alternatively both video signals of each pair may be appropriately delayed. The delaying means may comprise a pair of the monostable multivibrators triggering a bi-stable multivibrator, each pulse of the video signal being regenerated with the appropriate delay. Alternately the delaying means may comprise a delay line or shift register.
GB1786173A 1972-04-28 1973-04-13 Synchronising systems Expired GB1430272A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4273272A JPS53891B2 (en) 1972-04-28 1972-04-28

Publications (1)

Publication Number Publication Date
GB1430272A true GB1430272A (en) 1976-03-31

Family

ID=12644203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1786173A Expired GB1430272A (en) 1972-04-28 1973-04-13 Synchronising systems

Country Status (3)

Country Link
JP (1) JPS53891B2 (en)
DE (1) DE2320894C3 (en)
GB (1) GB1430272A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS589582B2 (en) * 1974-02-16 1983-02-22 三菱電機株式会社 Handout Taisouchino Seizouhouhou
JPS5153586U (en) * 1974-10-22 1976-04-23
JPS532628A (en) * 1976-06-24 1978-01-11 Takehara Kikai Kenkyusho Kk Cutting apparatus for glassfiber
JPS5476157U (en) * 1977-11-07 1979-05-30
JPS5478661U (en) * 1977-11-14 1979-06-04

Also Published As

Publication number Publication date
DE2320894A1 (en) 1973-11-08
DE2320894C3 (en) 1975-02-06
DE2320894B2 (en) 1974-06-27
JPS495207A (en) 1974-01-17
JPS53891B2 (en) 1978-01-12

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee