Patents by Inventor Derrick Lim

Derrick Lim 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).

  • ADAPTIVE RESPONSIVITY RF RECEIVER DETECTOR SYSTEM
    Publication number: 20090163160
    Abstract: A variable responsivity adaptive detector system (10) for a receiver protects a baseband amplifier from being overdriven and used to detect weak signals at the antenna (14). The RF detector system (10) includes an envelope detector (28) configured to receive an RF signal, and a power detector (20) sensing a magnitude of the received RF signal and providing a DC signal for biasing the envelope detector (28) to modify the magnitude of the received RF signal.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Applicant: Motorola, Inc.
    Inventors: John E. Holmes, Derrick Lim, Stephen K. Rockwell
  • EYEWEAR COMMUNICATIONS SYSTEM
    Publication number: 20090156128
    Abstract: An eyewear apparatus (100) has a first plurality of antennas (144, 142, 158) disposed thereon for transmitting a signal in a narrow beam (402), for example, with a directivity greater than 10 dBi, the signal comprising at least one of data and video. A microcomputer (126) is coupled to the first plurality of antennas for providing the signal thereto.
    Type: Application
    Filed: December 12, 2007
    Publication date: June 18, 2009
    Applicant: MOTOROLA, INC.
    Inventors: Steven J. Franson, Silviu Chiricescu, Derrick Lim