Grass Valley Canada

Gvbb Holdings S.a.r.l

Ken Buttle

Charles S Meyer

Tim John Lascano Callahan

A router fabric for switching real time broadcast video signals in a media processing network includes a logic device configured to route multiple channels of packetized video signals to another network device, a crossbar switch configured to be coupled to a plurality of input/output components and to switch video data of the multiple channels between the logic device and the plurality of input/output components in response to a control instruction, and a controller configured to map routing addresses for each video signal relative to the system clock, and to send the control instruction with the mapping to the crossbar switch and the logic device.

Router fabric for switching broadcast signals in a media processing network

Router fabric for switching real time broadcast signals in a media processing network

Router fabric for switching real time broadcast video signals in a media processing network

Router fabric

A method for stabilizing delay during conversion between Standard Definition (SD) video and High Definition (HD) video includes the step of establishing an integer divide ratio (M/N) corresponding to a ratio of clock rates with the output and input formats. The output clock rate is generated from the input clock rate by a Phase Lock Loop () using the M/N divide ratio to provide a known phase relationship between the two clocks rates at a repetitive interval. The video frame can be transferred at the known repetitive interval to provide coarse control over the input-to-output video delay. A separate fine tuning control (delay block) is provided to enable any programmable delay in video throughput to be accommodated to an accuracy of &#xb1;0.5 output pixel periods.

Delay stabilization method and apparatus for video format conversion

Growing community of inventors

Folsom, CA, United States of America

Ken Buttle