Patents by Inventor Daniel H. Larson

Daniel H. Larson 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).

  • Proximity detection for telecommunications features
    Patent number: 4932050
    Abstract: A switching system in which telecommunications features are improved by the use of the proximity status of a telephone station set user. The status is transmitted to the switching system over the same telephone line used for the station set. The proximity status information simply defines the presence or absence of a person to answer calls to the station set without identifying a particular person.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: June 5, 1990
    Assignee: AT&T Bell Laboratories
    Inventors: Wayne A. Davidson, Daniel H. Larson