Patent ID: 7965946
Filing Date: 2011-06-21
Classification: H04B,H04J

Abstract:
1. A method for calibrating skew in a multichannel optical transport network (OTN) transmission device, the method comprising: accepting a pair of 2 accepting a pair of 2 correlating the Ix, Qx, Iy, and Qy signals to a predetermined preamble/header portion of an OTN frame; comparing a voltage V generating a VO comparing a voltage V generating a VO comparing a voltage on a signal path selected from a first group consisting of Ix and Qx with a voltage selected from a second group consisting of Iy and Qy; generating a first VOxy (VOxyA) voltage in response to the comparison; and, minimizing the generated VO voltages in response to adjusting time delay modules in the Ix, Qx, Iy, and Qy signals paths.