Paul A Lanier

US Patent:

7684437, Mar 23, 2010

Filed:

Mar 23, 2005

Appl. No.:

11/087786

Inventors:

Rod Miller - Kernersville NC, US
Paul Lanier - Kernersville NC, US

Assignee:

Analog Devices, Inc. - Norwood MA

International Classification:

H04J 3/22

US Classification:

370466, 345698, 345 21, 345 33, 348443, 348445, 348455, 370270, 370350, 3703951

Abstract:

A system and method transmits graphic data received at varying frequencies at a fixed data rate. The frequency dependent data and associated data clock signal are received and the frequency dependent data is converted to frequency independent data. A ratio of a number of data clock cycles to a number of reference clock cycles is determined and transmitted. The frequency independent data and header data are transmitted, at a fixed rate, to a receiver, the fixed rate being a frequency greater than the frequency of the associated data clock signal. The received the frequency independent data is converted to frequency dependent data based upon the received determined ratio. The communication channel may include an optical fiber and a tension member wherein control data is transmitted along the tension member and graphic data is transmitted along the optical fiber.