Patents by Inventor Jeffrey C. Harp

Jeffrey C. Harp 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).

  • Spectrum management apparatus, method, and system
    Patent number: 7289568
    Abstract: A reconfigurable partial response encoder manages the emitted spectrum of a digital signal.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: October 30, 2007
    Assignee: Intel Corporation
    Inventors: Jeffrey C. Harp, Ernest T. Tsui
  • Antenna for wireless systems
    Patent number: 7158813
    Abstract: A base station for a wireless communication system has an antenna system that provides a downstream transmit pattern partitioned into azimuthal sectors and an upstream receive pattern partitioned into azimuthal sectors and elevation sectors. The base station has a transmitter connected to the antenna system to transmit a signal to a subscriber using the downstream transmit pattern, and a receiver connected to the antenna system for receiving a signal from the subscriber using the upstream receive pattern.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: January 2, 2007
    Assignee: Intel Corporation
    Inventors: Ernest T. Tsui, Jeffrey C. Harp
  • Antenna for wireless systems
    Publication number: 20030003959
    Abstract: A base station for a wireless communication system has an antenna system that provides a downstream transmit pattern partitioned into azimuthal sectors and an upstream receive pattern partitioned into azimuthal sectors and elevation sectors. The base station has a transmitter connected to the antenna system to transmit a signal to a subscriber using the downstream transmit pattern, and a receiver connected to the antenna system for receiving a signal from the subscriber using the upstream receive pattern.
    Type: Application
    Filed: June 28, 2001
    Publication date: January 2, 2003
    Inventors: Ernest T. Tsui, Jeffrey C. Harp
  • System and method of reducing ingress noise
    Publication number: 20020141347
    Abstract: A first signal containing a noise characteristic such as ingress, a data signal component, and a known sequence of symbols is transmitted from a client to a headend via a transmission channel within a communication network. A model of the transmission channel in the absence of the noise characteristic is then generated, the known sequence of symbols is applied to the transmission channel model, and the output of the transmission channel model is compared to the received signal to dynamically estimate the noise characteristic. The dynamically estimated noise characteristic is then used to modify the signal either at the client or the headend to reduce the impact of the noise characteristic on the transmitted data.
    Type: Application
    Filed: March 30, 2001
    Publication date: October 3, 2002
    Inventors: Jeffrey C. Harp, Ernest T. Tsui
  • Efficient QAM equalizer/demodulator with non-integer sampling
    Patent number: 5495203
    Abstract: A QAM demodulator that samples an IF input modulated with data at a fractional complex sampling rate between one and two times the data rate. The use of a fractional sampling rate significantly reduces the number of components necessary to implement the demodulator, particularly in the equalizer section of the demodulator which corrects for channel distortion. The fractional sampling rate demodulator architecture of the invention provides a significant reduction in integrated circuit surface area needed in a VLSI implementation.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: February 27, 1996
    Assignee: Applied Signal Technology, Inc.
    Inventors: Jeffrey C. Harp, Lee Snyder, Ernest Tsui