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| Number | Title | Issue Date |
| 6289396 | Dynamic programmable mode switching device driver architecture A device driver architecture that couples an operating system to a computer interface of a controller device that includes a plurality of functional sub-elements. The device driver includes a plurality of operating system interface objects each presenting... | 09/11/2001 |
| 6256723 | Signal processing system with distributed uniform memory A system is disclosed that includes a plurality of processors, which in some embodiments include DSPs and other microprocessors, and a distributed uniform memory. The distributed uniform memory is subdivided into a plurality of addressable memory spaces e... | 07/03/2001 |
| 6205522 | DSP code swapping with continuous DSP execution A system is disclosed that includes a first processor, which in some embodiments includes a DSP, and a first memory pool and a second memory pool. The second memory pool is primarily associated with the DSP and stores code that is available for execution ... | 03/20/2001 |
| 6166734 | Portable interactive graphics display tablet and communications system A portable display tablet is operated in conjunction with a base computer system including a host processor for executing an application program with a predetermined operational function that generates predetermined graphics data and operates in response ... | 12/26/2000 |
| 6160560 | Graphic request management system The invention is a method and apparatus of a graphic request management system which provides for storing in the header of bitmaps indicative of the last time a bitmap was included in a request as a destination or source bitmap. Where the system determine... | 12/12/2000 |
| 6084584 | Computer system supporting portable interactive graphics display tablet and communications systems A portable display tablet is operated in conjunction with a base computer system including a host processor for executing an application program with an operational function that generates graphics data and operates in response to input data. The computer... | 07/04/2000 |
| 6052120 | Method of operating a portable interactive graphics display tablet and communications systems A portable display tablet is operated in conjunction with a base computer system including a host processor for executing an application program with a predetermined operational function that generates predetermined graphics data and operates in response ... | 04/18/2000 |
| 6044225 | Multiple parallel digital data stream channel controller A data channel controller, coupleable to a base computer system including a base memory, for managing the transport of multiple data streams through a base system interface including a first buffer, a pool memory including a plurality of second buffers, a... | 03/28/2000 |
| 6011836 | In-line control of telephony device A system to control and monitor telephony devices that do not digitally interface with a control device, such as a PC, is disclosed. The control device communicates with the telephony device typically via standard telephone cable using tones to convey sta... | 01/04/2000 |
| 5946347 | Low latency transport of signals in an error correcting data modem The present invention is directed toward the low latency transport of signals demanding rapid communication. In modems utilizing an error-correcting protocol, messages are generally buffered and sent as a data packet. However, the method in accordance wit... | 08/31/1999 |
| 5910180 | Context virtualizing device driver architecture A device driver architecture that couples an operating system to a computer interface of a controller device that includes a plurality of functional sub-elements. The device driver includes a plurality of operating system interface objects each presenting... | 06/08/1999 |
| 5822553 | Multiple parallel digital data stream channel controller architecture A multiple data stream channel controller providing demand driven transport of multiple data streams concurrently in real time through a peripheral data channel coupled between a general purpose processor system and a special purpose processor system. The... | 10/13/1998 |
| 5797043 | System for managing the transfer of data between FIFOs within pool memory and peripherals being programmable with identifications of the FIFOs A data transfer control system including a pool memory, a plurality of peripheral devices, and a transfer controller. The pool memory provides for the storage of data in a plurality of FIFOs formed within the pool memory. The plurality of peripheral devic... | 08/18/1998 |
| 5784649 | Multi-threaded FIFO pool buffer and bus transfer control system A bus transfer control system manages the transfer of multiple asynchronous data streams through a buffer pool. The bus transfer control system includes a buffer pool having a plurality of memory blocks, wherein each memory block provides for the storage ... | 07/21/1998 |
| 5752032 | Adaptive device driver using controller hardware sub-element identifier A device driver architecture that couples an operating system to a computer interface of a controller device that includes a plurality of functional sub-elements. The device driver includes a plurality of operating system interface objects each presenting... | 05/12/1998 |
