Phase difference adjusting circuit

Details Phase difference adjusting circuit Phase difference adjusting circuit

H - Electricity

04

L

328/28

H04L 7/00 (2006.01) H04J 3/06 (2006.01) H04L 1/06 (2006.01)

Patent

CA 1305758

66446-472 ABSTRACT A phase adjusting circuit for adjusting the phase difference between at least two input data strings, supplied through respective input lines is described. The circuit has a sync detector for generating first and second sync detection signals by detecting sync signals from the first and second input data strings. A phase relation signal generator is responsive to the first and second sync detection signal to generate a phase relation signal representing the phase relation between the first and second input data strings. A phase difference detector generates a phase difference signal indicative of the phase dif- ference between the first and second data strings. A first switch is responsive to the phase relation signal to switch the first and second input data strings to produce first and second switched data strings. A variable delay circuit is responsive to the phase difference signal to delay the second switched data string to produce a delayed data string. A second switch is res- ponsive to the phase relation signal to deliver the delayed data string and the switched first data string to output lines corres- ponding to the input lines.

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