Efficient multichannel automatic setup and remote control system

Details Efficient multichannel automatic setup and remote control system Efficient multichannel automatic setup and remote control system

1980-03-31

1982-01-12

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358185, H04N 524

Patent

active

043108555

ABSTRACT:
A simplified automatic error correction setup system is coupled to the remote control multiplex/demultiplex circuitry in a color camera to generate and store respective error correction control voltages for selected operating parameters during a camera setup mode, with subsequent automatic retrieval of the stored error correction control voltages during camera operation. The automatic control voltages are digitally generated from incoming error signals via a control system loop generally formed of an error selector switch, a digital register, a digital-to-analog converter (DAC) and a random access memory (RAM). The register and/or RAM data are converted to analog control voltages via the DAC for each parameter (i.e., channel) being automatically corrected, which voltages are linearly summed with the corresponding control voltages. During the automatic setup mode, the RAM contents are updated via the register for any existing errors in the specific operating parameters. The register is then disabled and the updated RAM cyclically read out continuously during the camera operating mode.

REFERENCES:
patent: 4158208 (1979-06-01), Dischert
patent: 4167022 (1979-09-01), Dischert et al.
patent: 4190863 (1980-02-01), Dischert et al.

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