Patent ID: 7894562

Claim:
An electronic system for generating a data sync pattern for a network that utilizes Manchester (Bi-Phase) type signal encoding with an embedded sync pattern, the system comprising: a transmitter for generating said embedded sync pattern comprising a signal pattern of at least one of the patterns (a) and (b), where: pattern (a) begins with a first low signal of one bit period, followed by a high signal of 1½ bit periods, followed by a second low signal, and wherein a trailing edge transition from the high signal to second low signal creates a guaranteed transition ½ bit period prior to a start period for a data bit; and pattern (b) begins with a first high signal of one bit period, followed by a low signal of 1½ bit periods, followed by a second high signal, and wherein a trailing edge transition from the low signal to the second high signal creates a guaranteed transition ½ bit period prior to the start period for the data bit; and wherein portions of each of the patterns prior to and subsequent to said 1½ bit period both differ in duration from said 1½ bit period.