Patent ID: 7020795
Filing Date: 2006-03-28
Classification: H04L

Abstract:
1. An operating method, for detecting and solving underflow and overflow by using oversampling, the method is suitable for a transmitter and a receiver to transmit and receive data by using different clock frequencies, the receiver receives a plurality of received packages, each of the received packages includes a plurality of data, each of the data is sampled by a plurality of sampling phases, the sampling phase that is a first sampling for each of the data is referred to as a leading edge sampling phase, the method comprises the steps of: for each of the received packages, the leading edge sampling phase with most occurrence times in a first one of at least one synchronous period being used as an initial leading edge phase; determining an underflow circulation center point and an overflow circulation center point; processing an underflow operation and an overflow operation according to the underflow circulation center point and the overflow circulation center point; throwing away an extra bit when processing the underflow operation; and inserting a lost bit when processing the overflow operation, wherein, whether to process the underflow operation is determined by relative positions between the underflow circulation center point and the leading edge sampling phases, wherein, whether to process the overflow operation is determined by relative positions between the overflow circulation center point and the leading edge sampling phases.