Robert Boschgmbh

Franciscus Herman Maria Bergen

Jan Klijn

Johan Leon Schirris

Jennifer L Randall

Bruce Magid

Christiaan Clemens Maria Visschers

Ronald Simon Antonius Schram

The present invention relates to a method of and an apparatus for multiplexing a number of video signals, in which to save circuits for compressors the video signals are reduced in their information, combined into a single video signal, and then the video signal is compressed by one compressor.

Method of multiplexing a number of video signals with a compressor

A method of switching between video signals in an image switching apparatus is provided, which apparatus has a switch for switching between the video signal supplied by a camera and the video signal supplied by a recording apparatus, and a circuit for processing the video signal coming from the recording apparatus. The processing circuit compares the video signal coming from the recording apparatus with the video signal supplied by the camera and then sets an operating mode on the basis of the comparison result. The output signal from the recording apparatus is a signal which comes from a tape in the replay mode. In the recording and stop modes, the signal entering the recorder is looped through to the output of the video recorder. The two signals have a correlation to each other. A conclusion can thus be drawn on whether the image switching apparatus should work in the replay mode or the recording mode by simple comparison.

Method of switching between video signals in an image switching apparatus

A multi-picture in picture system in which each camera is coupled in a daisy chain adds its part of the complete picture on a CVBS-line. The television/monitor doesn't have to prepare the complete picture because each camera does it. Furthermore, no problems with locking occur because each camera adds its picture at the 'place' where it is also locked.

Growing community of inventors

Eindhoven, Netherlands

Franciscus Herman Maria Bergen