Patents by Inventor Samuel S. Mela

Samuel S. Mela 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).

  • Drop channel pre-alert for trunked radio communication system
    Patent number: 5086507
    Abstract: To help prevent call bridging and increase the reliability of channel de-assignment in a trunked radio repeater system, the working channel sends a drop channel "pre-alert" message to on-channel mobile units just before sending the drop channel signal. This "pre-alert" message instructs the mobile units to continue to receive but to not attempt to access the channel by transmitting. The pre-alert message thus makes the overall trunked communications system more forgiving of coincident mobile transmissions during drop channel signalling.
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: February 4, 1992
    Assignee: Ericsson GE Mobile Communications Inc.
    Inventor: Samuel S. Mela