Terminal apparatus with transmission function

Details Terminal apparatus with transmission function Terminal apparatus with transmission function

1989-09-14

1994-05-24

Nguyen, Phu K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

395162, 358524, G06F 1520, G06F 1566

Patent

active

053157028

ABSTRACT:
In a terminal apparatus for displaying a natural image on a display unit and sending the natural image to another terminal apparatus, the terminal apparatus includes: only one storage unit provided in common for storing RGB data, luminance/color difference data and compression data, the RGB data, and compression data being obtained by compressing the luminance/color difference data under a predetermined method; a switching unit operatively connected to the storage unit for switching content of display on the display unit from the RGB data stored in the storage unit to other image data not stored in the storage unit when the RGB data is converted to the luminance/color difference data and the luminance/color difference data is converted to the compression data; and a control unit operatively connected to the storage unit, switching unit and transmission unit through bus lines for reading out the RGB data from the storage unit, converting the RGB data to the luminance/color difference data, storing the luminance/color difference data into the storage unit, and compressing the luminance/color difference data to the compression data after read out from the storage unit, further, for controlling switching operation of the switching unit.

REFERENCES:
patent: 4491873 (1985-01-01), Takayama
patent: 4587557 (1986-05-01), Sugiyama et al.
patent: 4721951 (1988-01-01), Holler
patent: 4763291 (1988-08-01), Schwaber
patent: 4881181 (1989-11-01), Jeschke et al.

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