Patent Number: 6,434,561

Title: Method and system for accessing electronic resources via machine-readabledata on intelligent documents

Abstract: A method of accessing electronic resources via machine readable dataembedded on a document which comprises compressing input data with atransmitter adapted to save a first bandwidth using a compression methodadapted to minimize utilization of bandwidth by the compressed input datawhile retaining substantially all information content of the input dataand appending a compression flag to the compressed input data indicativeof the compression method enabling a receiver to decompress the compressedinput data. The compression step further comprises utilizing a compressiondictionary adapted to map the elements and strings of the input data tominimized representations having redundancies deleted. The compressiondictionary may be appended to the compressed input data (as cleartext orcyphertext) under circumstances where a bandwidth occupied by the appendedcompression dictionary is less than the bandwidth saved by the step ofcompressing the input data. The compression dictionary may also beselected by the receiver independently from the transmitter independentlyindexes, pointer registration, application restricted subsets orcustomized according to the input data content. Also the input data may beencrypted, and an encryption flag appended which is indicative of theencryption method enabling decryption via public or private keycryptosystems as well as utilizing various authentication techniques suchas digital signatures to ensure that the document was created by alicensed user.

Inventors: Durst, Jr.; Robert T. (Fort Myers, FL), Hunter; Kevin D. (Fort Myers, FL)


International Classification: H04L 9/32 (20060101); H04N 1/44 (20060101); H04N 1/333 (20060101); G06F 017/30 ()

Expiration Date: 08/13/2014