Patent ID: 7825713
Filing Date: 2010-11-02
Classification: G06F

Abstract:
1. An absolute time delay generating device, comprising: at least a delay module comprising a control unit and a reference unit, wherein the delay module is configured to compare delay statuses generated by allowing original signals to pass through the control unit and the reference unit respectively, so as to generate delay parameters; a signal phase/frequency control module configured to receive and compare the delay parameters so as to determine a delay status of the absolute time delay generating device according to the delay parameters and to generate absolute time delay based on the delay status of the absolute time delay generating device, wherein the signal phase/frequency control module comprises a delay status information unit configured to provide a correction signal generation parameter according to the delay status of the absolute time delay generating device and to generate a correction signal according to the correction signal generation parameter, wherein the delay status of the absolute time delay generating device corresponds to a phase difference or a frequency difference; and a delay-timing generator configured to receive the correction signal and adjust the delay status of the absolute time delay generating device based on the correction signal, allowing output of the delay-timing generator to be signal delay at a periodic oscillation frequency or simple signal delay, wherein the delay-timing generator is a digital control oscillator configured to generate an oscillation signal, receive the correction signal, and adjust a delay status of the oscillation signal based on the correction signal.