Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1981-02-17
1982-10-26
Britton, Howard
Facsimile and static presentation processing
Facsimile
Recording apparatus
358267, H04N 136
Patent
active
043565166
ABSTRACT:
A facsimile transmitter which allows faster scanning and transmission of information on a document by skipping over blank areas on said document and comprises a phase signal generating circuit 7 for generating a phase signal, a reading scanning circuit 1 for reading an original document, memory circuits 2, 3 for storing an image signal for one line, a detecting circuit 4 for testing whether or not the image signals for one line are all white signals, a counting circuit 5 for counting signals being generated by the detecting circuit, a sub-scanning mechanism 8 for performing skips by one line on the original document, a clock controlling circuit 6 for controlling the reading scanning circuit 1, the memory circuits 2, 3, and the sub-scanning circuit 8, an oscillator circuit 9 being controlled by the counted value of the counting circuit 5, and a gate controlling circuit 12 being controlled by the count value in said counter circuit, wherein the content of image information having been obtained by the prior scanning of one line is sequentially tested by the detecting circuit 4, the scanning mechanism being advanced by one line when the information having been detected is one to be skipped, the number of lines to be consecutively skipped is counted by the counter, the phase signal and the image signal being transmitted when the counted value is 0, and the sub-scanning controlling signal corresponding to the counted value being transmitted from the beginning of the phase when the counted value is equal to or more than 1.
REFERENCES:
patent: 3201512 (1965-08-01), Mason
patent: 3448207 (1969-06-01), Green
patent: 3502803 (1970-03-01), Bigenwald
patent: 4302781 (1981-11-01), Ikeda
Britton Howard
Weiss Franklyn C.
Xerox Corporation
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