Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1976-10-26
1977-10-18
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358140, 358287, H04N 140
Patent
active
040549143
ABSTRACT:
A facsimile scanning conversion system which can convert a facsimile scanning at a transmitter side or a receiver side such that a picture surface received at the receiver is correctly similar to that to be transmitted from the transmitter when either one or both an index of cooperation and a scanning speed of a facsimile transmitter is or are different from that or those of a facsimile receiver is disclosed. The facsimile scanning conversion system makes use of a facsimile scanner, a buffer memory, an electrical transmission control device, an addition register and a scanning control device. The electrical transmission control device causes the buffer memory to read out one scanning line picture signal therefrom or to write in the one scanning line picture signal thereto with a given period which coincides with a scanning period of corresponding receiver or transmitter for effecting a continuous scanning and adds a ratio of indexes of cooperation between the transmitter and the receiver to the addition register with the above mentioned period. The scanning control device causes the facsimile scanner to effect one line scanning and also causes the buffer memory to write in one scanning picture signal thereto and to read out the one scanning picture signal therefrom when a value of an integer portion of the addition register is not zero and at the same time causes the addition register to subtract 1 from the value of the integer portion thereof.
REFERENCES:
patent: 3272918 (1966-09-01), Koll
patent: 3541245 (1970-11-01), Wilby
patent: 3603727 (1971-09-01), Kinugawa
patent: 3830971 (1974-08-01), VAN DE Polder
Britton Howard W.
Olympus Optical Company Limited
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