Patent ID: 7406104
Filing Date: 2008-07-29
Classification: H03M,H04L,H04N

Abstract:
1. A method for transmission of information in digital form, the method comprising: transmitting at least first and second frames, each frame having a selected number F of binary digits or bits, and each frame including a signal synchronization segment of a first selected length and a signal body segment having a second selected length, where the synchronization segment for the first frame has a selected bit pattern that distinguishes this segment from a selected bit pattern for the synchronization segment of the second frame, and where the synchronization segment for at least one of the first frame and the second frame can be used to temporally synchronize at least one of the first and second frames; using said synchronization segment selected bit patterns to distinguish at least 2 choosing at least one of said synchronization segment selected bit patterns to include at least one of (i) a pseudonoise sequence that is generated by an Nth degree polynomial p(x)=0, where x is a Boolean variable and (ii) a pattern generated by forming an Exclusive OR of a first sequence of binary-valued numbers that is a pseudonoise sequence that is generated by an Nth degree polynomial p(x)=0, where x is a Boolean variable, and a second sequence of binary-valued numbers that is a selected orthogonal sequence having a selected code length.