Abstract: A digital videocassette is provided having magnetic storage means for digitally storing compressed video and audio data and interface means for converting the stored data to analog. The converted data is played back through an audio-visual playback device, such as a videocassette recorder. Subscribing means are provided for obtaining information and for ordering movies and programs over a communications link or cellular network. The received programming can be downloaded onto the magnetic storage means for viewing at any time or played back instantly.

Abstract: A system is disclosed for synthesizing field programmable gate array (FPGA) implementations from high level circuit descriptions. A designer may describe circuits using a textual language or a graphics tool. The system will compile such circuit descriptions into technology mapped descriptions for use with FPGA's.The system will support both random logic circuits and data path circuits. The system uses advanced optimization techniques to produce efficient FPGA implementations. Thus, the system produces high quality results while providing users with a high level of abstraction in design, and thus frees the user from architectural details of the target FPGA.