Patent ID: 8391491
Filing Date: 2013-03-05
Classification: H04L,Y04S

Abstract:
1. A method for establishing bit-to-bit correspondence of data to be shared between a first communication device and a second communication device, which are connected through a plurality of communication channels, comprising: a) at the first communication device, transmitting first data to the second communication device through a first communication channel, wherein the first data comprises a plurality of bits each positioned at sequential bit timings; b) at the second communication device, modulating the transmitted first data which has been received from the first communication device through the first communication channel, using second data; c) storing the modulated first data as third data; d) provisionally setting a first sync deviation and a second sync deviation, wherein the first sync deviation is a bit-timing difference between the first and second communication devices, and the second sync deviation is a bit-timing difference between the second data and the third data within the second communication device; e) extracting a part of the third data which corresponds to the second data and is determined depending on the second sync deviation; f) comparing a part of the third data to a corresponding part of the first data which is determined depending on the first and second sync deviations while sequentially changing the first sync deviation and the second sync deviation within a predetermined adjustment range so that a plurality of possible combinations of the first sync deviation and the second sync deviation are tried; and g) determining the first and second sync deviations which make a maximum rate of data matching between a part of the third data and the corresponding part of the first data.