Arrangement for aligning the image of an information structure o

Arrangement for compensating duty factor variations in an optica

Article inspection by successively televised images

Astigmatizer for laser recording and reproducing system

Autofocus circuit for a videodisc playback device

Automated positioning

Automatic black level setting circuit

Automatic brightness control circuit

Automatic DC restorer and gain control

Automatic defect-detecting method and apparatus

Automatic focusing apparatus

Automatic frequency control device for television receiver

Automatic gain control system

Automatic low frequency gain limited circuit for eliminating sig

Automatic peaking control circuit for low level T.V. signal rece

Automatic tuning apparatus

Automatic tuning apparatus

Automatic video signal control circuit

Bandwidth compression system and method

Bi-level display system