Resources Contact Us Home
Codebook-based lossy data compression encoding system

Image Number 3 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
Human embryonic stem cell methods and PODXL expression
Method for maintaining a driver-independent braking intervention after a collision
Phone messaging using audio streams
Method for releasing a locking in mobile terminal and mobile terminal using the same
Method for measuring and improving organization effectiveness
Burner grate
Lighting elements
  Randomly Featured Patents
Aurora kinase inhibitors for inhibiting mitotic progression
Methods for producing microchannel chips, microchannel chips, methods for separating biomolecules using the microchannel chips, and electrophoretic apparatus having the microchannel chips
Low leakage gate protection circuit
Multiple injection moulding apparatus
Radiator grill
High strength zirconia ceramic
Microbore catheter with side port(s)
Circuit structure and semiconductor integrated circuit