Patent ID: 7136442
Filing Date: 2006-11-14
Classification: H04L

Abstract:
1. A receiving circuit, the receiving circuit receiving a message signal, the message signal expected to contain an event in relation to a reference point, the reference point being at least one of a given point in time or a given timespan, the receiving circuit comprising: a sampler, the sampler sampling the message signal based on a sampling period and providing a sampled signal; a signal-quality determining unit, the signal-quality determining unit receiving the sampled signal and, responsive to the sampled signal, providing a quality signal representative of the relationship between the event and the reference point; a control unit, the control unit providing a control signal responsive to the quality signal, so as to control the sampler as to at least one sampling parameter; at least one of a decoder and a checking unit, the decoder and checking unit receiving the sampled signal and, responsive thereto, providing respective error signals to the control unit; and wherein, responsive at least in part to at least one of such error signals, the control unit provides the control signal, wherein the decoder decodes the sampled signal using an edge-decoder consistent with the edge-coding of the message signal; and wherein the control unit analyzes the quality signal with reference to a window of expectation, a tolerance window and an error window, so as to determine whether the event occurs within one of these windows, the control unit, responsive to such analyzing, is informed in providing the control signal according to at least one of the following: (a) if the event occurs within the window of expectation, there is no need for the control unit to take any action as to control of the sampler; (b) if the event occurs within the tolerance window, the control unit can tolerate the deviation from the window of expectation or can take action to control the sampler; and (c) if the event occurs within the error window, control of the sampler is required.