Patents by Inventor Ken J. Ju

Ken J. Ju 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: 7385940
    Abstract: A system for using a plurality of processors to support a media conference includes a mixing processor and a first media transformation processor coupled to the mixing processor. The mixing processor mixes input media information associated with two or more first participants to generate output media information for communication to a second participant. The first media transformation processor receives the output media information from the mixing processor, encodes the output media information to generate an output data stream, and communicates the output data stream to the second participant's end-user device.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: June 10, 2008
    Assignee: Cisco Technology, Inc.
    Inventors: Joseph C. Harrow, Kai C. Kwong, Ken J. Ju, Son H. P. Le
  • Patent number: 6806814
    Abstract: Internet nodes having global positioning receivers or the like are configured for communicating position information over the Internet, using an Internet protocol (IP). Preferably, information packets according to the protocol include some or all of a source identifier, a time stamp and/or an indicator of the type or format of the position information. Preferably, end-users may provide for encryption, passwords or other features for controlling the entities which can receive or use the position information.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: October 19, 2004
    Assignee: Cisco Technology, Inc.
    Inventors: Timothy James Iverson, Kai Cheung Kwong, Ken J. Ju, Pak Chiu Leung, Son Hoanh Phuoc Le
  • Patent number: 6744741
    Abstract: A system for maintaining a plurality of media conferences includes digital signal processors (DSPs) and a system resource management (SRM) module coupled to the DSPs. Each DSP receives input data packets from conference participants, processes the input data packets to generate output data packets, and communicates the output data packets to the conference participants. The SRM module may migrate a media conference from a first DSP to a second DSP.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: June 1, 2004
    Assignee: Cisco Technology, Inc.
    Inventors: Ken J. Ju, Tien-Yi Lin, Steven Chow, Joseph C. Harrow, Son H. P. Le
  • Patent number: 6606306
    Abstract: A device for supporting a plurality of media conferences includes digital signal processors (DSPs) and a system resource management (SRM) module coupled to the DSPs. Each DSP receives input data packets from conference participants and processes the input data packets to generate output data packets. Each DSP determines whether the media conference is set to an active mode and communicates the output data packets to the conference participants in response to determining that the media conference is set to the active mode. The SRM module allocates a media conference to a first DSP and a second DSP and sets the media conference to the active mode in the first DSP and a stand-by mode in the second DSP. The first DSP communicates output data packets associated with the media conference in response to the SRM module setting the media conference to the active mode in the first DSP.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: August 12, 2003
    Assignee: Cisco Technology, Inc.
    Inventors: Tien-Yi Lin, Steven Chow, Joseph C. Harrow, Ken J. Ju, Son H. P. Le