EFFICIENT MULTICHANNEL AUTOMATIC SETUP AND REMOTE CONTROL SYSTEM

摘要

ID 2745ABSTRACT OF THE DISCLOSUREA simplified automatic error correction setup system iscoupled to the remote control multiplex/demultiplex circuitry ina color camera to generate and store respective error correctioncontrol voltages for selected operating parameters during acamera setup mode, with subsequent automatic retrieval of thestored error correction control voltages during camera operation.The automatic control voltages are digitally generated fromincoming error signals via a control system loop generally formedof an error selector switch, a digital register, a digital-to-analog converter (DAC) and a random access memory (RAM). Theregister and/or RAM data are converted to analog control vol-tages via the DAC for each parameter (i.e., channel) being auto-matically corrected, which voltages are linearly summed with thecorresponding control voltages. During the automatic setupmode, the RAM contents are updated via the register for anyexisting errors in the specific operating parameters. Theregister is then disabled and the updated RAM cyclically read outcontinuously during the camera operating mode.