Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Codebook-based lossy data compression encoding system










Image Number 5 for United States Patent #5838691.

A communication system encodes input data by comparing the data to records in a lossy codebook to determine the closest match. An index corresponding to the record that most closely matches the input data is retrieved from the codebook and transmitted to a receiver. For a predetermined sampling interval, the communication system collects statistics of the frequency of occurrence of each record matching the input data. The records are sorted in descending order by the frequency of occurrence. Using either a predetermined error rate or a predetermined subtable size, the communication system creates a subtable of the records having the greatest frequency of occurrence. To reduce the search time of finding a record matching the input data, the communication system searches only the subtable for records until the error of the match in the subtable exceeds a preselected threshold or until a preselected period of time has elapsed. The communication system again collects statistics of the frequency of occurrence.








 
 
  Recently Added Patents
Flash drive
Message value indicator
System and method for agitation of multiple specimen containers
Method and system for facilitating micropayments in a financial transaction system
System and method for advertising messages on distributed document processing devices
Social network user data advertising
Expandable mobile device
  Randomly Featured Patents
Reversible panel arrangement
Liquid crystal materials containing substituted bicyclo(2,2,2)octanes
Methods and apparatus to allocate resources associated with a distributive computing network
Extension and retraction arrangements
Porous metal and method of preparation thereof
Digital data apparatuses and digital data operational methods
Dock plank assembly
Case
Printed wiring board, method for forming the printed wiring board, and board interconnection structure
Bipolar transistors with low base resistance for CMOS integrated circuits