Patents by Inventor David C. Corkum

David C. Corkum 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).

  • Annunciating apparatus, and associated method, for radio communication device
    Patent number: 6134455
    Abstract: Annunciator apparatus, and an associated method, for a mobile station, such as a radio telephone operable in a cellular communication system. When a call is to be terminated at the mobile station, a determination is made of the ambient noise levels proximate to the mobile station. Responsive to the determinations of the ambient noise level, selection is made of the loudness level of the ringing tone to be generated by an annunciator, used to annunciate the terminating call. Thereby, the loudness level of the ringing tone generated by the annunciator is of a loudness level appropriate for the conditions at which the mobile station is positioned.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: October 17, 2000
    Assignee: Nokia Mobile Phones Limited
    Inventor: David C. Corkum