Inventor · disambiguated record
Walter R. Friedrich
Also filed as: FRIEDRICH WALTER · FRIEDRICH WALTER R
16 granted patents·941 citations·filing 1992–2011
95Inventor score
Files withCISCO TECH INC8NAT SEMICONDUCTOR CORP4CISCO TECH IND1FIRESTONE SCOTT S1RAMALINGAM THIYAGESAN1
Top patents by PatentIndex Score
16 records- 0198US7477282B2System and method for performing distributed video conferencingCISCO TECH INC·Filed 2005·Granted Jan 13, 2009·164 cites·39 claims
- 0298US6989856B2System and method for performing distributed video conferencingCISCO TECH IND·Filed 2003·Granted Jan 24, 2006·281 cites·26 claims
- 0397US7084898B1System and method for providing video conferencing synchronizationCISCO TECH INC·Filed 2003·Granted Aug 1, 2006·173 cites·20 claims
- 0496US7321384B1Method and apparatus for using far end camera control (FECC) messages to implement participant and layout selection in a multipoint videoconferenceCISCO TECH INC·Filed 2003·Granted Jan 22, 2008·92 cites·47 claims
- 0590US7664057B1Audio-to-video synchronization system and method for packet-based network video conferencingCISCO TECH INC·Filed 2004·Granted Feb 16, 2010·78 cites·68 claims
- 0689US7940294B2Method and apparatus for using far end camera control (FECC) messages to implement participant and layout selection in a multipoint videoconferenceCISCO TECH INC·Filed 2007·Granted May 10, 2011·10 cites·20 claims
- 0788US7580375B1Scalable moderated audio conferencing for multicast and unicast endpoints and gatewaysCISCO TECH INC·Filed 2004·Granted Aug 25, 2009·57 cites·32 claims
- 0885US7929012B2Method and architecture for distributed video switching using media notificationsCISCO TECH INC·Filed 2006·Granted Apr 19, 2011·15 cites·31 claims
- 0983US8576272B2Method and apparatus for using far end camera control (FECC) messages to implement participant and layout selection in a multipoint videoconferenceWU DUANPEI·Filed 2011·Granted Nov 5, 2013·4 cites·9 claims
- 1068US8659636B2System and method for performing distributed video conferencingFIRESTONE SCOTT S·Filed 2003·Granted Feb 25, 2014·12 cites·34 claims
- 1157US8713105B2Method and apparatus for transcoding and transrating in distributed video systemsRAMALINGAM THIYAGESAN·Filed 2006·Granted Apr 29, 2014·2 cites·16 claims
- 1250US5325360AControllable PCM state machine user interfaceNAT SEMICONDUCTOR CORP·Filed 1992·Granted Jun 28, 1994·21 cites·24 claims
- 1343US7907594B2Marking keyframes for a communication sessionCISCO TECH INC·Filed 2006·Granted Mar 15, 2011·0 cites·21 claims
- 1443US5333270AFDDI configuration management state machine controllerNAT SEMICONDUCTOR CORP·Filed 1992·Granted Jul 26, 1994·15 cites·19 claims
- 1537US5577206ASystem for physical layer controllers for performing automatic hardware based scrubbing of input and output dirty flags for updating system configuration changesNAT SEMICONDUCTOR CORP·Filed 1993·Granted Nov 19, 1996·9 cites·38 claims
- 1636US5390183APCM pseudo code signalling user interfaceNAT SEMICONDUCTOR CORP·Filed 1992·Granted Feb 14, 1995·8 cites·30 claims
Join the waitlist — get patent alerts
Get an alert when Walter R. Friedrich files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →