Patents by Inventor Nelson C. Hung

Nelson C. Hung 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).

  • Label-based multiplexing
    Patent number: 7600039
    Abstract: A communication system adds transport layer protocol independent address labels to data packets. The communication system then routes the data packets based on the address labels rather than routing addresses, such as IP, UDP, and ATM headers, and thus can multiplex and transport data packets that are formatted based on a variety of transport protocols.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: October 6, 2009
    Assignee: Motorola, Inc.
    Inventors: Dah-Lain Almon Tang, Nelson C. Hung, Albert Chen
  • Label-based multiplexing
    Publication number: 20010025321
    Abstract: A communication system adds transport layer protocol independent address labels to data packets. The communication system then routes the data packets based on the address labels rather than routing addresses, such as IP, UDP, and ATM headers, and thus can multiplex and transport data packets that are formatted based on a variety of transport protocols.
    Type: Application
    Filed: February 14, 2001
    Publication date: September 27, 2001
    Inventors: Dah-Lain Almon Tang, Nelson C. Hung, Albert Chen
  • Digital cellular TDM system employing 6:1 packing of transcoded information
    Patent number: 5111454
    Abstract: A digital cellular time-division multiple access (TDMA) system including a cellular switch and at least one base site employing 6:1 packing of transcoded information. The system incorporates the VSELP speech encoding algorithm to transcode data input from a cellular switch and a unique packing scheme to compress six messages channels worth of transcoded data into one 20 msec, 160 frame information block for transmission in one TDM timeslot. The compressed transcoded data is transmitted to a base-site on a T1 link where the six message channels worth of transcoded data is un-packed and coded. The coded information is then separated into two groups of three air-interface timeslots where two separate transmitters transmit one group each of three air-interface timeslots on two separate radio carrier frequencies.
    Type: Grant
    Filed: August 16, 1990
    Date of Patent: May 5, 1992
    Assignee: Motorola, Inc.
    Inventors: Nelson C. Hung, John R. Welk