Automatic channel matching system and method thereof

Automatic channel sampling picture-in-picture circuitry

Automatic color calibration of a color reproduction system

Automatic connection system on a color TV S-VHS input

Automatic contrast and brightness control system for thermal ima

Automatic contrast circuit for instantaneous compensation

Automatic contrast controller of a video camera

Automatic control circuit for vertical synchronizing signal

Automatic correction apparatus for video signal of digital VTR

Automatic D.C. offset control for image scanners

Automatic defect detecting inspection apparatus

Automatic determination of time base in electronic time-keeping

Automatic dialer for facsimile terminals and the like

Automatic dialer having a recall memory

Automatic dialer having a selective retry capability

Automatic dialer with a programmable pause

Automatic distortion correction arrangement

Automatic dithering optical focusing system using an oscillating

Automatic engraving method and apparatus

Automatic envelope measuring system