Patents by Inventor Pavel Cerna

Pavel Cerna 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: 6597667
    Abstract: A system and method for selectively muting a call of a wireless communication system. A first predetermined signal is received by the wireless communication system. The phone signal has a user signal associated with it. In response to the first predetermined signal, the wireless communication system pauses communication of the user signal to the end user while still maintaining the phone call between the wireless communication system and the conference bridge. In response to a second predetermined signal, the wireless communication system reiates communication of the user signal to the end user.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: July 22, 2003
    Assignee: Qualcomm Incorporated
    Inventor: Pavel Cerna
  • Patent number: 5444707
    Abstract: A multi-channel telephonic communications system, where voice, data, and facsimile information is packetized and switched to the desired destination based upon a call number embedded in each packet which is based upon the digits dialed at the source. A switching architecture is used to minimize the trunk line resource needed and to simplify system configuration and maintenance. Connection between the source and the desired destination are allowed if there is sufficient bandwidth to support the connection. Flow control is also provided, which dynamically varies the bandwidth used by voice packets to adjust to changing traffic levels. Voice bandwidth is reduce when needed by the traffic volume, and voice bandwidth is increased when possible to improve voice quality.
    Type: Grant
    Filed: July 9, 1993
    Date of Patent: August 22, 1995
    Assignee: Netrix Telcom Systems Corporation
    Inventors: Pavel Cerna, Robert E. Hay