초록 ▼

The present invention is directed to providing a method and apparatus for efficiently compressing and reconstructing a header of a real time communication packet. In a header compressor, a header field value is applied to a modulo X operator which can, for example, divide the header field value by a

The present invention is directed to providing a method and apparatus for efficiently compressing and reconstructing a header of a real time communication packet. In a header compressor, a header field value is applied to a modulo X operator which can, for example, divide the header field value by a value X, and output the remainder. Optionally, a checksum may be appended to the remainder. The header field value may be scaled prior to being applied to the modulo X operator. The compressed header field which is output from the header compressor includes the remainder with or without the checksum appended. A header decompressor includes a field reconstructor which reconstructs the received compressed header field in response to the remainder value and range information. The range information represents a range of possible field values which can be reconstructed from the received remainder value.

대표청구항 ▼

The present invention is directed to providing a method and apparatus for efficiently compressing and reconstructing a header of a real time communication packet. In a header compressor, a header field value is applied to a modulo X operator which can, for example, divide the header field value by a

The present invention is directed to providing a method and apparatus for efficiently compressing and reconstructing a header of a real time communication packet. In a header compressor, a header field value is applied to a modulo X operator which can, for example, divide the header field value by a value X, and output the remainder. Optionally, a checksum may be appended to the remainder. The header field value may be scaled prior to being applied to the modulo X operator. The compressed header field which is output from the header compressor includes the remainder with or without the checksum appended. A header decompressor includes a field reconstructor which reconstructs the received compressed header field in response to the remainder value and range information. The range information represents a range of possible field values which can be reconstructed from the received remainder value. edge-based system. 4. The method of claim 3 wherein said knowledge-based system comprises a computer system. 5. The method of claim 4 wherein said body of knowledge is stored within a database within said computer system. 6. The method of claim 5 wherein said task comprises an engineering problem. 7. The method of claim 5 wherein said task is related to the design of an automotive component. 8. A method for improving the performance of a knowledge-based system which provides a solution to a problem inputted into said system by use of a database of knowledge within said system, said method comprising the steps of: inputting a problem into said system, thereby causing said system to provide an output; evaluating said output of said system; determining whether portions of said database of knowledge were incorrectly based upon said evaluation; and selectively removing said portions which were incorrect from said database of knowledge, thereby improving said performance of said knowledge-based system. 9. The method of claim 8 further comprising the steps of: adding data to said database of knowledge based upon said evaluation, said data corresponding to issues which were not addressed by said knowledge-based system. 10. The method of claim 9 wherein said database of knowledge comprises a plurality of rules obtained from experts. 11. The method of claim 10 wherein said database of knowledge is resident within a computer system. 12. The method of claim 11 wherein said computer system comprises a display for viewing said output. 13. A method for utilizing a knowledge-based system comprising the steps of: providing input to said knowledge-based system, effective to cause said system to generate an output; evaluating said output by testing said output and comparing a result of said testing with said output; and providing feedback to said knowledge-based system based upon said evaluation, said feedback being effective to alter a body of knowledge which is held within said knowledge-based system by removing portions of said body of knowledge which are inaccurate, thereby improving said knowledge-based system. 14. The method of claim 13 wherein said feedback is effective to selectively remove at least a portion of said body of knowledge from said knowledge-based system. 15. The method of claim 14 wherein said feedback is effective to selectively add a portion of knowledge to said body of knowledge. 16. The method of claim 15 wherein said input comprises a task and said evaluation is effective to determine how well said knowledge-based system performs said task. 17. The method of claim 15 wherein said input comprises a problem, wherein said output comprises a solution, and wherein said evaluation is effective to determine whether said solution is correct. 18. The method of claim 17 wherein said problem comprises an automotive engineering type problem.