Patents by Inventor Bernie Dee Tull, Jr.

Bernie Dee Tull, Jr. 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).

  • Wireless portable transceiver arranged for providing isolation between radio frequency and audio signals
    Patent number: 5884197
    Abstract: Cross-over modulation between radio frequency circuits and audio circuits is minimized in a wireless portable transceiver by locating all audio circuitry in a first section of the portable transceiver and all radio frequency circuitry in a second, separate section of the portable transceiver. In view of modality considerations in small portable transceivers, an audio signal is either radiated or received in the vicinity of the radio frequency circuitry. Isolation of the audio signal is achieved by routing this signal while in its acoustic form. Since audio signals in an electrical form are not routed around or near the radio frequency circuitry, cross-over modulation does not occur between the radio frequency circuitry and the audio circuitry.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: March 16, 1999
    Assignee: Lucent Technologies Inc.
    Inventors: George L. Ricardo, William Davis Simmons, Bernie Dee Tull, Jr.
  • Telephone handset
    Patent number: D384673
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: October 7, 1997
    Assignee: Lucent Technologies Inc.
    Inventors: Ronald Dale Hernandez, George L. Ricardo, Linda A. Roberts, John Stoddard, Suzy Stone, Leslie G. Tudor, Bernie Dee Tull, Jr., Julian F. Vanhoof, Jr.