Solid state digital television camera

Details Solid state digital television camera Solid state digital television camera

1981-01-27

1982-08-17

Richardson, Robert L.

Facsimile and static presentation processing

Static presentation processing

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H04N 907

Patent

active

043452701

ABSTRACT:
A solidstate digital television camera which has a solid state image sensing device, an A-D converter for converting the output of the image sensing device to a digital color signal, a filter for providing a predetermined filter characteristic to the digital color signal, and a digital color modulator for modulating the output of the above filter to produce a digital modulated signal.
In the digital television camera, the processing rate between the solid state image sensing device and the filter is selected to have a sampling rate equal to that of the solid state image sensing device, or (n/m)pF.sub.sc where f.sub.sc is a color subcarrier frequency, p is 3 or 4, and m and n are relatively small integers. The processing rate for the remaining elements is selected to be pf.sub.sc. In addition, a D-D converter for converting the processing rate from (n/m)pF.sub.sc to pf.sub.sc is provided between the filter and the digital modulator. Thus, the digital television camera can be operated at a relatively slow sampling drive rate and can be constructed from integrated circuits.

REFERENCES:
patent: 4227206 (1980-10-01), Nagumo

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