Matches 51 - 62 out of 62 < 1 2
Match Document Document Title
4858008 Apparatus for the digital generation of vertical synchronizing and field identification signals  
A circuit is arranged to derive the internal vertical synchronizing signals and field identification signals for a digital television signal. The circuit operates from the internal horizontal...
4827341 Synchronizing signal generating circuit  
A synchronizing signal generating circuit is incorporated in a digital image storing device. When a plurality of video signals composed of different numbers of scanning lines and issued from...
4792853 Video signal processing devices  
A video signal processing device for separating horizontal and vertical synchronizing signal components from an applied video signal, for forming a field discrimination signal upon discriminating...
4683495 Circuit arrangement for distinguishing between the two fields in a television signal  
To distinguish between the two fields in a television signal, television synchronizing pulses are applied to a pulse interval detector. The output signal of the pulse interval detector assumes a...
4680633 Circuit and method for producing accurate dc restored video waveform, horizontal sync pulses, and vertical sync pulses  
A composite video signal is input to a DC restore circuit and a sync separator circuit, the output of which is connected to a sync decoder circuit. The DC restore circuit includes a negative...
4679080 Field blanking pulse modifier  
A field blanking pulse modifier in which the line synchronizing pulses and the field blanking pulse of a conventional television signal are derived. A counter is arranged to be reset by the field...
4631587 Field responsive vertical pulse generator  
In an NTSC television system there are an odd number (262.5) of horizontal lines in each field. This relationship causes a 50% duty cycle horizontal rate signal (H) to be high during one specific...
4608602 Circuit for generating a control signal for the field deflection in a picture display device  
A circuit for generating a control signal for the field deflection in a picture display device which is suitable for displaying an interlaced picture. The circuit comprises a field identification...
4387396 Field recognition circuit  
An apparatus is provided for synchronizing left-and right-eye images and for providing a composite video signal for a stereoscopic television system. The synchronization operation at a...
3649750 CONTROL SIGNAL GENERATING APPARATUS TO PERMIT RELIABLE SELECTION OF TRANSMITTED TELEVISION MESSAGE INFORMATION  
Digital logic apparatus operates in response to the line and field scanning rate pulses present in a broadcast television signal to generate a control signal which synchronizes the count-down...
3649749 APPARATUS PERMITTING RELIABLE SELECTION OF TRANSMITTED TELEVISION MESSAGE INFORMATION  
A digital countdown circuit is synchronized by a "flag" signal transmitted every other television field to permit reliable selection of a predetermined television frame line in a system...
3456071 INFORMATION TRANSMISSION SYSTEM  
Matches 51 - 62 out of 62 < 1 2