113 results about "Cassette recorder" patented technology

A shelving system for displaying audio visual components that may be configured into multiple positions is disclosed. The system includes a base that supports a center platform disposed between right and left platforms. The center platform and the right and left platforms all may assume multiple positions for displaying and demonstrating different audio visual components of varying sizes. In a first upright position, the right and left platforms provide an open three walled platform for holding a large speaker or other component in an inclined position. In second inverted positions, the right and left platforms are useful for supporting a component, such as a smaller speaker, in an elevated position above the base. In a first upright position, the center platform provides an elevated platform for a larger component, such as a monitor with or without other components such as a DVD player and a video cassette recorder. In the first upright position, the center platform also provides space beneath the top panel thereof for accommodating other components such as a center speaker, subwoofer, amplifier and the like. In a second inverted position, the center platform provides a front wall and an elevated support surface. Ceiling mounted speaker enclosures are also provided which enable a retailer to easily suspend smaller speaker components from the ceiling either in front of or behind the multiple configuration shelving system.

An apparatus and method for applying anti-copy protection to a raster-scanned video signal are described. A square waveform 52 is added to the vertical synchronisation pulses 50 of the video signal. The effect of the waveform is not apparent until it has been recorded by a video cassette recorder. The anti-copy protected video signal can therefore be viewed normally on a display device at or near to the picture quality intended by the originator of the video signal, but once recorded, exhibits a reduction in picture quality which makes the video signal quite unattractive to view.