Claims
- 1. In a communication system in which content is communicated by a sending station, the content formed of groups of data items, an improvement of apparatus for compressing the content into compressed form to facilitate communication thereof, in compressed form, upon a communication channel, said apparatus comprising:
at least a first sending-station codebook positioned at the sending station, said sending-station codebook containing a conversion mechanism, the conversion mechanism defining a manner by which to compress the content; an encoder coupled to said at least the first sending codebook and coupled to receive the content to be communicated by the sending station, said encoder for encoding at least a first selected group of data items of the content by accessing the conversion mechanism and encoding the at least the first selected group of data items according to the conversion mechanism to form a coded representation thereof, the coded representation of smaller length than the first selected group of data items prior to encoding thereof.
- 2. The apparatus of claim 1 wherein the content mechanism contained said at least the first codebook comprises values representative of at least selected groups of the data items forming the content together with coded representations thereof.
- 3. The apparatus of claim 2 wherein said encoder encodes the at least the first selected group of data items by substituting therefor the coded representations thereof contained at said codebook and indexed together with the values representative of a corresponding selected group of the data items.
- 4. The apparatus of claim 1 wherein the content mechanism contained at said at least the first codebook comprises a conversion algorithm and processing circuitry at which the conversion algorithm is executable, the conversion algorithm defining a manner by which to convert at least selected ones of the selected groups of the data items forming the content.
- 5. The apparatus of claim 4 wherein said encoder encodes the at least the first selected group of data by accessing the conversion algorithm contained at said codebook and causing execution thereof.
- 6. The apparatus of claim 1 wherein the content comprises a vector graphic, wherein the groups of data items comprise content items, and wherein the conversion mechanism contained at said first codebook defines a manner by which to compress at least selected ones of the content items.
- 7. The apparatus of claim 6 wherein said encoder encodes the content items according to the conversion mechanism, to form the coded representations the content items of the vector graphic.
- 8. In the communication system of claim 1 wherein the content communicated by the sending station is communicated upon a communication channel to a receiving station, a further improvement of apparatus for the receiving station for decompressing the content, once delivered to the receiving station, said apparatus comprising:
at least a first receiving-station codebook positioned at the receiving station, said receiving-station codebook also containing a conversion mechanism, the conversion mechanism contained at said first receiving-station codebook defining a manner by which to decompress the data, the conversion mechanism contained at said receiving-station codebook corresponding to, but reverse with that of, the conversion mechanism contained at said first sending-station.
- 9. The apparatus of claim 8 further comprising a decoder coupled to said at least first receiving-station codebook and coupled to receive indications of the content, once delivered to the receiving station in compressed form, said decoder for decoding the indications of at least the first selected group of the data items of the content, by accessing the conversion mechanism of said receiving-station codebook and decoding the indications of the at least the first selected group of the data items to form a decoded representation thereof.
- 10. The apparatus of claim 1 wherein said first sending-station codebook comprises a dynamically-configured conversion mechanism, the manner by which to compress the content dynamically selected.
- 11. The apparatus of claim 10 wherein dynamic configuration of said first sending-station codebook is responsive, at least in part, to the content that is to be communicated.
- 12. The apparatus of claim 10 wherein dynamic configuration of said first sending station codebook is responsive, at least in part, to previously-communicated content.
- 13. The apparatus of claim 1 wherein said at least first codebook comprises said first codebook and at least a second codebook.
- 14. The apparatus of claim 13 wherein said encoder is coupled at least selectably to each of said first and at least second codebooks, said encoder selectably operable to retrieve coded representations from at least a selected one of said first and at least second codebooks.
- 15. In a method for communicating in which content is communicated by a sending station, the content formed of groups of data items, an improvement of a method for compressing the content into compressed form to facilitate communication thereof, in compressed form, upon a communication channel, said method comprising:
forming at least a first sending-station codebook, the first sending-station codebook containing a conversion mechanism that defines a manner by which to compress the content; by accessing the conversion mechanism of the first sending-station codebook formed during said operation of forming; and encoding the at least the first selected group of data items according to the conversion mechanism to form a coded representation thereof, the coded representation of smaller length than the first selected group of data items prior to encoding thereof.
- 16. The method of claim 15 comprising the further operations of:
sending the content, once encoded during said operation of encoding, to a receiving station; and detecting the content, once delivered to the receiving station.
- 17. The method of claim 16 comprising the further operation of:
forming at least a first receiving-station codebook at the receiving-station codebook at the receiving station, the first receiving-station codebook containing a conversion mechanism that defines a manner by which to decompress the data.
- 18. The method of claim 17 wherein the conversion mechanism contained at the first receiving-station codebook corresponds to, but is reverse with that of, the conversion mechanism contained at the first sending-station.
- 19. The method of claim 17 further comprising the operation of:
decoding the at least the first selected group of data items according to the conversion mechanism contained at the first receiving-station codebook by accessing the conversion mechanism contained at the first receiving-station codebook and decoding the indications of the at least the first selected group of the data items.
- 20. The method of claim 15 wherein the communication system comprises a radio communication system, wherein the sending station comprises a first radio transceiver station and the receiving station comprises a second radio transceiver station, wherein the communication channel comprises a radio channel, and wherein said operation of forming the first receiving-station codebook comprises sending indicia defining the first receiving-station codebook fro the first radio transceiver station to the second radio transceiver station.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The present invention claims the priority of provisional patent Application No. 60/287,254, filed on Apr. 27, 2001, the contents of which are incorporated herein.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60287254 |
Apr 2001 |
US |