Patents by Inventor Steven Robert Norsworthy

Steven Robert Norsworthy 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: 5745061
    Abstract: Briefly, in accordance with one embodiment of the invention, a circuit comprises: a sigma-delta modulator including an input signal port, an output signal port, and a signal path. The signal path includes a feedforward signal path and a feedback signal path. The signal path is adapted to be coupled to a dither signal and the circuit is adapted to adjust the dither signal substantially in accordance with a signal applied to the input signal port. In accordance with another embodiment of the invention, a method of improving the stability of a sigma-delta modulator, the modulator employing dither, comprises the steps of: applying a signal to the input port of the sigma-delta modulator; applying a dither signal to the signal path of the sigma-delta modulator; and adjusting the dither signal applied substantially in accordance with the signal applied to the input port.
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: April 28, 1998
    Assignee: Lucent Technologies Inc.
    Inventors: Steven Robert Norsworthy, David Arthur Rich
  • Patent number: 5648777
    Abstract: A data converter for converting a signal either from analog form to digital form or from digital form to analog form includes a storage register. The storage register receives and temporarily stores digital data samples. The digital data samples are transferable out of the storage register in the same sequence in which they were received. A digital signal processor coupled to the storage register is interruptible to transferred digital data samples either to or from the storage register. In this manner, the digital signal processor transfers multiple digital data samples either to or from the storage register during each interrupt rather than transferring a single data sample per interrupt, thereby reducing the number of interrupts necessary to transfer a given number of digital data samples.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: July 15, 1997
    Assignee: Lucent Technologies Inc.
    Inventors: Laurence Edward Bays, Richard Muscavage, Steven Robert Norsworthy