WF

Walter R. Friedrich

CI Cisco: 12 patents #1,141 of 13,007Top 9%
NS National Semiconductor: 4 patents #498 of 2,238Top 25%
Overall (All Time): #299,171 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8713105 Method and apparatus for transcoding and transrating in distributed video systems Thiyagesan Ramalingam, Francis Viggiano, Nermin M. Ismail, Duanpei Wu, Shantanu Sarkar 2014-04-29
8659636 System and method for performing distributed video conferencing Scott Firestone, Nermin M. Ismail, Keith A. Lantz, Shantanu Sarkar, Luke K. Surazski +1 more 2014-02-25
8576272 Method and apparatus for using far end camera control (FECC) messages to implement participant and layout selection in a multipoint videoconference Duanpei Wu, Nermin M. Ismail, Shantanu Sarkar 2013-11-05
7940294 Method and apparatus for using far end camera control (FECC) messages to implement participant and layout selection in a multipoint videoconference Duanpei Wu, Nermin M. Ismail, Shantanu Sarkar 2011-05-10
7929012 Method and architecture for distributed video switching using media notifications Steven G. Fry, Thiyagesan Ramalingam, Nermin M. Ismail, Duanpei Wu 2011-04-19
7907594 Marking keyframes for a communication session Duanpei Wu, Shantanu Sarkar, Steven G. Fry 2011-03-15
7664057 Audio-to-video synchronization system and method for packet-based network video conferencing Fang Wu, Wen-hsiung Chen, Shantanu Sarkar 2010-02-16
7580375 Scalable moderated audio conferencing for multicast and unicast endpoints and gateways Shantanu Sarkar, Nermin M. Ismail 2009-08-25
7477282 System and method for performing distributed video conferencing Scott Firestone, Nermin M. Ismail, Keith A. Lantz, Shantanu Sarkar, Luke K. Surazski +1 more 2009-01-13
7321384 Method and apparatus for using far end camera control (FECC) messages to implement participant and layout selection in a multipoint videoconference Duanpei Wu, Nermin M. Ismail, Shantanu Sarkar 2008-01-22
7084898 System and method for providing video conferencing synchronization Scott Firestone, Nermin M. Ismail, Keith A. Lantz, Shantanu Sarkar, Luke K. Surazski +1 more 2006-08-01
6989856 System and method for performing distributed video conferencing Scott Firestone, Nermin M. Ismail, Keith A. Lantz, Shantanu Sarkar, Luke K. Surazski +1 more 2006-01-24
5577206 System for physical layer controllers for performing automatic hardware based scrubbing of input and output dirty flags for updating system configuration changes James R. Hamstra, James F. Torgerson 1996-11-19
5390183 PCM pseudo code signalling user interface David Brief 1995-02-14
5333270 FDDI configuration management state machine controller David Brief, James F. Torgerson 1994-07-26
5325360 Controllable PCM state machine user interface 1994-06-28