Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1993-07-01
1995-09-05
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358320, 358321, 358327, 360 70, 360 7717, H04N 989, H04N 5782
Patent
active
054483670
ABSTRACT:
An apparatus and a method for automatically controlling pulse generation. The apparatus comprises a drum having video heads, a pulse generating head and a frequency generation head, first and second wave-shapers for wave-shaping a pulse generation signal from the pulse generating head and a frequency generation signal from the frequency generating head, respectively. There is also provided a mono-multi signal generator outputting a mono-multi signal having a rising curve time, a servo device for outputting a head switching signal in response to the mono-multi signal and outputting a drum control signal in response to the pulse and frequency generation signals and the head switching signal to control the speed and phase of the drum. There is further provided a luminance/chrominance processing circuit for selecting a channel for inputting one of video signals played back by the video heads in response to the head switching signal, for processing luminance and chrominance of the video signal from the selected channel and for outputting the processed video signal, and an automatic mono-multi signal control circuit for separating a vertical synchronous signal from the video signal, varying the rising curve time of the mono-multi signal in accordance with a time interval between the separated vertical synchronous signal and the head switching signal for thereby correcting an error of the head switching signal based on the rising curve time of the mono-multi signal.
REFERENCES:
patent: 4370685 (1983-01-01), Hosoi et al.
patent: 4420778 (1983-12-01), Sakamoto
patent: 4882634 (1989-11-01), Satoh et al.
patent: 5175630 (1992-12-01), Tabuchi et al.
Pack Bok H.
Park Sang D.
Britton Howard W.
Goldstar Co. Ltd.
Nguyen Huy
LandOfFree
Apparatus for automatically controlling generation of a head swi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for automatically controlling generation of a head swi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for automatically controlling generation of a head swi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-476818