Christopher S Barnes
Security Companies and Guards in Provo, UT
License number
Utah 319562-8012
Issued Date
Mar 13, 1996
Expiration Date
Jun 13, 1996
Category
Security Companies & Guards
Type
Interim Unarmed Private Security Officer
Address
Address
Provo, UT
Professional information
System And Method For Data Compression Using Multiple Codewords And Transmitted Indices
US Patent:
5250949, Oct 5, 1993
Filed:
Aug 14, 1989
Appl. No.:
7/392905
Inventors:
Richard L. Frost - Provo UT
Christopher F. Barnes - Provo UT
Douglas M. Chabries - Salem UT
Richard W. Christiansen - American Fork UT
Christopher F. Barnes - Provo UT
Douglas M. Chabries - Salem UT
Richard W. Christiansen - American Fork UT
Assignee:
Brigham Young University - Provo UT
International Classification:
H03M 100
US Classification:
341200
Abstract:
A multistage data compression system includes an encoder for receiving input data sequences from a data source, where the encoder comprises two or more quantizer stages, each stage having a memory for storing an established set of codewords preselected such that the sum of different combinations of codewords, one for each stage, is representative of likely to occur input data sequences. Each codeword of each stage has a respective index associated therewith. The encoder operates to select a codeword from at least two of the stages such that the sum of the selected codewords is a closer match to each input sequence than any other sum of codewords formed from the selected stages. When the codewords of interest are determined, the indices of those codewords are retrieved. These indices may then be transmitted to another location, stored in memory or otherwise processed. The system also includes a decoder coupled to the transmission channel, memory, or other mechanism which operates on the indices.