Field interleaving compatible high definition television transmi

Field interpolation circuit

Field memory expansible line doubler for television receiver

Field motion suppression in interlaced video displays

Field number conversion circuit

Field number doubling circuit for a television signal

Field recognition circuit

Field responsive vertical pulse generator

Field sequential liquid crystal display with enhanced brightness

Field service switch for a television receiver

Field-frequency doubling circuit

Fifty channel television transmitter

File system for filing documents, using a catalog card having a

Film image editing apparatus using image density variation detec

Film-to-video converter with scan line doubling

Film-to-video frame image conversion apparatus and method for se

Filter circuit of the median type for video signals

Finder optical system

Finder optical system for cameras

Fine adjustment tuning apparatus for TV and a method of storing