Facsimile apparatus with selectable data image coding

Details Facsimile apparatus with selectable data image coding Facsimile apparatus with selectable data image coding

1991-07-12

1992-10-27

Brinich, Stephen

Facsimile and static presentation processing

Facsimile

Auxiliary signal

358435, H04M 1100

Patent

active

051594668

ABSTRACT:
A facsimile apparatus capable of enhancing a communication speed with another facsimile apparatus through a transmission line in a network includes a facsimile modem unit for quantizing image data and coding the image data quantized so that the coded image data is output, and a data terminal unit for supplying a first indication signal and a second indication signal and transmitting the image data in response to the first indication signal so that the coded image data is transmitted in response to the second indication signal. The facsimile modem unit includes a unit for quantizing image data to be inputted, a unit for coding the image data quantized in the quantize unit, and a unit for sending either the data coded in the coding unit or coded data supplied from the data terminal unit to the data transmission line. The data terminal unit includes a unit for supplying a first indication signal and a second indication signal, a unit for transmitting the image data to the modem unit in response to the first indication signal supplied from the supply unit, and a unit for transmitting the coded image data to the sending unit in response to the second indication signal supplied from the supply unit.

REFERENCES:
patent: 4734780 (1988-03-01), Iwata et al.
patent: 4870678 (1989-09-01), Adachi
patent: 4908851 (1990-03-01), Kotani et al.
patent: 4918723 (1990-04-01), Iggulden et al.

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