WALTER ROLAND FRIEDRICH
Pilots at Piemonte Dr, Pleasanton, CA

5333270, Jul 26, 1994

Dec 29, 1992

7/998412

David C. Brief - Palo Alto CA
Walter R. Friedrich - Pleasanton CA
James F. Torgerson - Andover MN

National Semiconductor Corporation - Santa Clara CA

G06F 1300

395200

A controllable configuration management (CFM) state machine user interface is disclosed for use in the physical layer controller of a station or concentrator capable or insertion into a data transmission network that is capable of operating substantially in accordance with the FDDI protocol. In one aspect of the invention, the physical layer controller includes a null configuration register, a join configuration register and a loop configuration register. The null configuration register is capable of storing information indicative of a desired configuration of the physical layer controller when the CFM state machine is in a null configuration. Similarly, the join and loop configuration register are capable of storing information indicative of desired configurations when the CFM state machine is in the join and loop configurations respectively.

5577206, Nov 19, 1996

Mar 9, 1993

8/028342

Walter R. Friedrich - Pleasanton CA
James R. Hamstra - Shorewood MN
James F. Torgerson - Andover MN

National Semiconductor Corporation - Santa Clara CA

G06F 1300

39520002

A physical layer controller for use in a data transmission network is disclosed which includes an automatic scrubbing arrangement that is activated upon the occurrence of a physical layer controller reconfiguration. The transmitter output port as well as each channel output of the physical layer controller has an output dirty flag associated therewith. Similarly, the input port as well as each channel input has an associated input dirty flag. A scrubbing arrangement automatically scrubs certain outputs after a configuration change. More specifically, in the absence of a blocking condition after a configuration change, the scrubbing arrangement will automatically scrub each output which has a new source and one of: 1) its associated output dirty flag is set to a first level; and 2) it is connected to an new source which has its associated input dirty flag set to a first level. In a method aspect, output dirty flags are set for each output that has the potential to transmits a data frame. Outputs which have data frame detection available are considered to have the potential to transmit a data frame only when they sense a frame start.

7940294, May 10, 2011

Nov 30, 2007

11/948031

Duanpei Wu - San Jose CA, US
Nermin M. Ismail - Mountain View CA, US
Shantanu Sarkar - San Jose CA, US
Walter R. Friedrich - Pleasanton CA, US

Cisco Technology, Inc. - San Jose CA

H04N 7/14

348 1408, 348 1409, 348 1412

A method, an apparatus and a medium encoded with instructions for providing layout selection, participant selection, and/or participant-to-participant far end camera control of the selected participant for use in a continuous presence multipoint videoconference. The method includes receiving one or more far end camera control messages over a packet network from a first participant of a multipoint videoconference; maintaining an indication of a far end camera control mode for the first participant, the mode being one of a set of modes; and depending on the far end camera control mode and on controls possible, carrying out a control according to one ore more the camera control messages.

8576272, Nov 5, 2013

May 6, 2011

13/102332

Duanpei Wu - San Jose CA, US
Nermin M. Ismail - Mountain View CA, US
Shantanu Sarkar - San Jose CA, US
Walter R. Friedrich - Pleasanton CA, US

Cisco Technology, Inc. - San Jose CA

H04N 7/14

348 1408, 348 141, 370401

A method, an apparatus and a medium encoded with instructions for providing layout selection, participant selection, and/or participant-to-participant far end camera control of the selected participant for use in a continuous presence multipoint videoconference. The method includes receiving one or more far end camera control messages over a packet network from a first participant of a multipoint videoconference; maintaining an indication of a far end camera control mode for the first participant, the mode being one of a set of modes; and depending on the far end camera control mode and on controls possible, carrying out a control according to one ore more the camera control messages.

7084898, Aug 1, 2006

Nov 18, 2003

10/715687

Scott S. Firestone - Mountain View CA, US
Walter R. Friedrich - Pleasanton CA, US
Nermin M. Ismail - Mountain View CA, US
Keith A. Lantz - Los Altos CA, US
Shantanu Sarkar - San Jose CA, US
Luke K. Surazski - Santa Clara CA, US
Duanpei Wu - San Jose CA, US

Cisco Technology, Inc. - San Jose CA

H04N 7/14

348 1409, 348 1408, 348 1412

An audio mixer on a first device receives one or more incoming audio streams. Each of the one or more incoming audio streams has an associated timestamp. The audio mixer generates a mixed audio stream from the one or more incoming audio streams. The audio mixer determines differences in the time base of each of the one or more incoming audio streams and the time base for the mixed audio stream. The audio mixer generates mapping parameters associated with the determined differences and transforms the timestamp of each of the one or more incoming audio streams to a corresponding output timestamp associated with the mixed audio stream according to the mapping parameters. the mapping parameters are provided to a video mixer for similar processing and transformation such that the mixed audio stream is in synchronization with a mixed video stream.

2007015, Jul 5, 2007

Jan 3, 2006

11/324864

Thiyagesan Ramalingam - Milpitas CA, US
Francis Viggiano - Palo Alto CA, US
Nermin Ismail - Fremont CA, US
Walter Friedrich - Pleasanton CA, US
Duanpei Wu - San Jose CA, US
Shantanu Sarkar - San Jose CA, US

Cisco Technology, Inc. - San Jose CA

G06F 15/16

709246000

Disclosed are video conferencing systems, devices, architectures, and methods for transcoding, transrating, and the like, to facilitate video streaming in a distributed arrangement. An exemplary translator in accordance with embodiments can include: an input configured to receive a first video stream in a first format, the first video stream being from a first media switch, the first media switch being associated with a first stream group having one or more first endpoints; and an output configured to provide a second video stream in a second format, the second video stream being sent to a second media switch, the second media switch being associated with a second stream group having one or more second endpoints, whereby the translator is configured to convert from the first to the second format. Further, the translator can be configured as a logical endpoint where a first interface having an input/output pair uses the first format and a second interface having another input/output pair uses the second format. The two formats may differ in at least one characteristic.

7321384, Jan 22, 2008

Jun 3, 2003

10/453341

Duanpei Wu - San Jose CA, US
Nermin M. Ismail - Mountain View CA, US
Shantanu Sarkar - San Jose CA, US
Walter R. Friedrich - Pleasanton CA, US

Cisco Technology, Inc. - San Jose CA

H04N 7/14

348 1408, 348 141, 370401

A method and an apparatus for providing layout selection, participant selection, and/or participant-to-participant far end camera control of the selected participant for use in a continuous presence multipoint videoconference. The method includes receiving an FECC message of a set of FECC messages over a packet network from a first participant, the first participant having a set of FEEC modes and being in one of the FECC modes. The method further includes maintaining knowledge of the mode of the first participant and interpreting the received FECC message according to the FECC mode of the first participant. Depending on the FECC mode of the first participant, the interpreted FECC message, and the set of controls provided by the method (layout selection and/or participant selection to select a participant and/or participant-to-participant camera control), the method further includes one of changing the FECC mode of the first participant, forming a layout for the first participant, selecting a participant for the first participant, or carrying out participant-to-participant camera control of a previously selected participant.

6989856, Jan 24, 2006

Nov 6, 2003

10/703859

Scott S. Firestone - Mountain View CA, US
Walter R. Friedrich - Pleasanton CA, US
Nermin M. Ismail - Mountain View CA, US
Keith A. Lantz - Los Altos CA, US
Shantanu Sarkar - San Jose CA, US
Luke K. Surazski - Santa Clara CA, US
Duanpei Wu - San Jose CA, US

Cisco Technology, Inc. - San Jose CA

H04N 7/14

348 1409, 348 1408, 348 1412

A method for executing a video conference is provided that includes receiving one or more audio streams associated with a video conference from one or more end points and determining an active speaker associated with one of the end points. Audio information associated with the active speaker may be received at one or more media switches. One or more video streams may be suppressed except for a selected video stream associated with the active speaker, the selected video stream propagating to one or more of the media switches during the video conference. The selected video stream may be replicated such that it may be communicated to one or more of the end points associated with a selected one of the media switches.

2005007, Apr 14, 2005

Oct 8, 2003

10/680918

Scott Firestone - Mountain View CA, US
Walter Friedrich - Pleasanton CA, US
Nermin Ismail - Mountain View CA, US
Keith Lantz - Los Altos CA, US
Shantanu Sarkar - San Jose CA, US
Luke Surazski - Santa Clara CA, US
Duanpei Wu - San Jose CA, US

H04N007/14

348014080, 348014130

A method for executing a video conference is provided that includes receiving one or more audio streams associated with a video conference from one or more end points and determining an active speaker associated with one of the end points. Audio information associated with the active speaker may be received at one or more media switches. One or more video streams may be suppressed except for a selected video stream associated with the active speaker, the selected video stream propagating to one or more of the media switches during the video conference. The selected video stream may be replicated such that it may be communicated to one or more of the end points associated with a selected one of the media switches.

7477282, Jan 13, 2009

Jul 12, 2005

11/180826

Scott S. Firestone - Mountain View CA, US
Walter R. Friedrich - Pleasanton CA, US
Nermin M. Ismail - Mountain View CA, US
Keith A. Lantz - Los Altos CA, US
Shantanu Sarkar - San Jose CA, US
Luke K. Surazski - Santa Clara CA, US
Duanpei Wu - San Jose CA, US

Cisco Technology, Inc. - San Jose CA

H04N 7/14, H04M 3/42

348 1409, 348 1408, 348 1411

A method for executing a video conference is provided that includes receiving one or more audio streams associated with a video conference from one or more end points and determining an active speaker associated with one of the end points. Audio information associated with the active speaker may be received at one or more media switches. One or more video streams may be suppressed except for a selected video stream associated with the active speaker, the selected video stream propagating to one or more of the media switches during the video conference. The selected video stream may be replicated such that it may be communicated to one or more of the end points associated with a selected one of the media switches.