Patents by Inventor Craig M. Julian

Craig M. Julian 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).

  • Patent number: 6987799
    Abstract: A Direct Sequence Spread Spectrum (DSSS) receiver system (100) combines and orders the soft symbols from associated information channels. The system permits a QPSK channel to be demodulated as a pair of BPSK channels, and the soft symbols of the demodulated BPSK channels to be multiplexed into a single information channel. The receiver system (100) includes a plurality of demodulating fingers (102–106). Each demodulating finger accepts modulation parameters and a sample stream, while supplying soft symbols with indexing information so that information channels can be subsequently multiplexed into a single information channel. A method for ordering the soft symbols of associated information channels in a DSSS system is also provided.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: January 17, 2006
    Assignee: Texas Instruments Incorporated
    Inventors: John G. McDonough, Craig M. Julian
  • Patent number: 6959033
    Abstract: A method for providing combiner channel assignments, with the soft symbols of corresponding demodulated information channels, is presented. The grouping of combiner channel assignments with the soft symbols permits any information channel to be associated with any finger channel without additional communications being required between a controller and the combiner. Once the demodulating finger is programmed with a combiner channel assignment for each finger channel, the assignment of finger channel outputs to combiner channels is regulated in the flow of communications between the combiner and the demodulating finger. A system for assigning combiner channels with the soft symbol outputs of a demodulating finger is also provided.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: October 25, 2005
    Assignee: Texas Instruments Incorporated
    Inventors: John G. McDonough, Craig M. Julian
  • Publication number: 20020181552
    Abstract: A Direct Sequence Spread Spectrum (DSSS) receiver system (100) combines and orders the soft symbols from associated information channels. The system permits a QPSK channel to be demodulated as a pair of BPSK channels, and the soft symbols of the demodulated BPSK channels to be multiplexed into a single information channel. The receiver system (100) includes a plurality of demodulating fingers (102-106). Each demodulating finger accepts modulation parameters and a sample stream, while supplying soft symbols with indexing information so that information channels can be subsequently multiplexed into a single information channel. A method for ordering the soft symbols of associated information channels in a DSSS system is also provided.
    Type: Application
    Filed: May 3, 2001
    Publication date: December 5, 2002
    Inventors: John G. McDonough, Craig M. Julian