Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1992-07-06
1993-02-16
Groody, James J.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358212, 340793, H04N 557
Patent
active
051875780
ABSTRACT:
In a display device for pictures, etc., adequate brightness of pictures to be displayed is provided by varying the luminous times of the luminous elements making up the a display panel. The luminous elements receive multiple-bit codes representing levels of brightness from signals to be displayed. A time corresponding to a field of television signals is divided into a plurality of sub-fields corresponding to the bits of a multiple-bit code. The plurality of sub-fields have lengths of time proportional to weights of the corresponding bits. The luminous elements have different levels of brightness in sub-fields corresponding to bits of a multiple-bit binary code. For each luminous element, the time interval from a light emission start time in a sub-field where the first light emission occurs in a time corresponding to a field of television signals till a light emission start time in a sub-field where the last light emission occurs in a time corresponding to the next field of television signals is made shorter than the critical fusion period of the perception characteristic of human eyes.
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Kohgami Akihiko
Mikoshiba Shigeo
Shinada Shinichi
Suzuki Mutsumi
Groody James J.
Hitachi , Ltd.
Murrell Jeffrey S.
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