Patents by Inventor Kenneth R. Cyr

Kenneth R. Cyr has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for processing a subband encoded audio data stream
    Patent number: 5794181
    Abstract: A data processing system (10) is disclosed which comprises a microprocessor host (12) coupled to a decoding system (14). A host interface block (18) receives a bit stream and passes bit stream on to a system decoder block (20). The system decoder block (20) extracts the appropriate data from the bit stream and loads an input buffer (24) or an optional external buffer (26). An audio decoder block (28) retrieves the data from the input buffer (24) and generates scale factor indices, bit per code word values and subband samples which are stored in an arithmetic unit buffer (30). A hardware filter arithmetic unit block (32) retrieves the information from the arithmetic unit buffer (30) and dequantizes, transforms and filters the data to generate PCM output data which is loaded into a PCM buffer (34). The data within the PCM buffer (34) is output by a PCM output block (36) to a digital-to-analog converter (16).
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: August 11, 1998
    Assignee: Texas Instruments Incorporated
    Inventors: Gerard Benbassat, Frank L. Laczko, Sr., Stephen H. Li, Kenneth R. Cyr, Jonathan L. Rowlands
  • Hardware filter circuit and address circuitry for MPEG encoded data
    Patent number: 5657423
    Abstract: A data processing system (10) uses a microprocessor host (12) coupled to a decoding system (14). A hardware filter arithmetic unit block (32) retrieves decoded information from the arithmetic unit buffer (30) and dequantizes, transforms and filters the data to generate PCM output data which is loaded into a PCM buffer (34). An address circuit forms several addresses from a single value to accesses multiple sources of data and coefficients simultaneously for use by the hardware filter arithmetic unit.
    Type: Grant
    Filed: April 26, 1993
    Date of Patent: August 12, 1997
    Assignee: Texas Instruments Incorporated
    Inventors: Gerard Benbassat, Frank L. Laczko, Sr., Stephen H. Li, Kenneth R. Cyr, Jonathan L. Rowlands
  • Integrated audio decoder system and method of operation
    Patent number: 5644310
    Abstract: A data processing system (10) is disclosed which comprises a microprocessor host (12) coupled to a decoding system (14). A host interface block (18) receives a bit stream and passes bit stream on to a system decoder block (20). The system decoder block (20) extracts the appropriate data from the bit stream and loads an input buffer (24) or an optional external buffer (26). An audio decoder block (28) retrieves the data from the input buffer (24) and generates scale factor indices, bit per code word values and subband samples which are stored in an arithmetic unit buffer (30). A hardware filter arithmetic unit block (32) retrieves the information from the arithmetic unit buffer (30) and dequantizes, transforms and filters the data to generate PCM output data which is loaded into a PCM buffer (34). The data within the PCM buffer (34) is output by a PCM output block (36) to a digital-to-analog converter (16).
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 1, 1997
    Assignee: Texas Instruments Incorporated
    Inventors: Frank L. Laczko, Sr., Gerard Benbassat, Kenneth R. Cyr, Stephen H. Li, Shiu Wai Kam, Karen L. Walker, Jonathan L. Rowlands