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| Number | Title | Issue Date |
| 6005561 | Interactive information delivery system An information delivery system including a head end broadcasting a data stream of media objects, the head end being coupled to a broadcast television interface and at least one information service provider and including an encoder for encoding information... | 12/21/1999 |
| 5838389 | Apparatus and method for updating a CLUT during horizontal blanking An apparatus and method for updating a color look up table and expanding video data for use in various applications such as a multimedia computer. The color look up table updating scheme permits selective updating of one entry in the table or up to all of... | 11/17/1998 |
| 5631849 | Decompressor and compressor for simultaneously decompressing and compressng a plurality of pixels in a pixel array in a digital image differential pulse code modulation (DPCM) system A digital image differential pulse code modulation decompressor for simultaneously generating, during a cycle of operation of said decompressor, a decompressed value for a plurality of selected pixels located on a diagonal of an array of pixels. A storage... | 05/20/1997 |
| 5617506 | Method for communicating a value over a transmission medium and for decoding same A method and apparatus for a 2:1 compression of a digital audio signal including 1) a compression operation for compressing a sixteen bit sample of the audio signal as both an exact value and a delta value, and 2) a regeneration operation for regenerating... | 04/01/1997 |
| 5596693 | Method for controlling a spryte rendering processor Linked lists of spryte control blocks are prepared in memory and traversed by a spryte rendering engine. Each spryte control block controls the rendering of a respective spryte into the display buffer, and contains such information as a pointer to source ... | 01/21/1997 |
| 5577180 | Zone data streaming for 3-dimensional video environment A system for continuously presenting audio/video data. The data for the entire program is too large to be completely loaded into memory at one time; therefore, the data is divided into a set of overlapping zones. Each zone is divided into subzones. Two ov... | 11/19/1996 |
| 5572235 | Method and apparatus for processing image data The invention provides a method and apparatus for processing digital image data to produce realism-imparting effects such as shadowing, highlighting, color filtering, colored reflections rendering and the like. An image processing apparatus in accordance ... | 11/05/1996 |
| 5521946 | Multi-phase filter/DAC Apparatus and method for use with a sampled input signal having an input sampling frequency FS. The apparatus including M digital filters, each receiving the input signal, each having a respective transfer characteristic hm [n] and e... | 05/28/1996 |
| 5502462 | Display list management mechanism for real-time control of by-the-line modifiable video display system The invention provides a method and apparatus for managing color modification of a raster based image on a real time, line-by-line basis and for managing real-time of new imagery into buffers whose data is displayable.... | 03/26/1996 |
| 5488576 | Amplitude adaptive filter A digital filter transfer function is implemented using at least two implementing filters, one of which has a transfer function which guarantees an output which is unconditionally within a predefined output compliance range, and the other of which has a t... | 01/30/1996 |
| 5481275 | Resolution enhancement for video display using multi-line interpolation The invention provides a method and apparatus for enhancing apparent image resolution by way of multi-line interpolation. A method for enhancing the resolution of low-resolution image-data includes the steps of: providing a memory having independently add... | 01/02/1996 |
| 5408267 | Method and apparatus for gamma correction by mapping, transforming and demapping Gamma correction is performed by dividing the total gamma transfer function input value range into a plurality of segments. The source RGB data is then mapped into an associated x-position in a "standard" segment, and gamma correction is performed on the ... | 04/18/1995 |
| 5337363 | Method for generating three dimensional sound A method for producing three dimensional sound associated with an object that is moving from a first position to a second position with respect to the listener. The method includes the effects of doppler shifting, head shadowing, distance on frequency com... | 08/09/1994 |
