Facsimile and static presentation processing – Facsimile – Picture signal generator
Patent
1988-09-19
1990-05-15
Coles, Sr., Edward L.
Facsimile and static presentation processing
Facsimile
Picture signal generator
358409, H04N 104, H04N 136
Patent
active
049262637
ABSTRACT:
Disclosed is a synchronizing circuit for an optical scanning apparatus in which synchronization of writing of an image in the horizontal direction is achieved using a synchronizing signal generated in response to the output signal of an photo sensor for detecting the light which has passed through a scanning means. The synchronizing circuit includes a frequency dividing circuit for dividing the frequency of a clock pulse train having a predetermined frequency in response to the output signal from the photo sensor, a delay circuit for successively delaying the phase of the frequency divided clock pulse train by a predetermined time interval when it produces output signals, and a selecting circuit for selecting as a synchronizing signal the output of the delay circuit whose phase difference is at a minimum with respect to the output of the photo sensor.
REFERENCES:
patent: 4146908 (1979-03-01), Vandling
patent: 4203075 (1980-05-01), Wessler
patent: 4349847 (1982-09-01), Traino
patent: 4683499 (1987-07-01), Kuwabara
patent: 4689690 (1987-08-01), Aagano
patent: 4713690 (1987-12-01), Watanabe
patent: 4800442 (1989-01-01), Riseman
Document #57-3188; Date:1-82; Country: Japan.
Coles Sr. Edward L.
Fuji Photo Film Co. , Ltd.
Grant II Jerome
LandOfFree
Synchronizing circuit for optical scanning apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Synchronizing circuit for optical scanning apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synchronizing circuit for optical scanning apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-625629