DIRECT DIGITAL RECEIVER WITH LOCAL FREE RUNNING CLOCK Russian patent published in 2015 - IPC H03M1/12 G01R33/36 

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to a direct digital receiver. The receiver comprises: an analogue-to-digital converter (214) for converting an analogue signal received from a radio-frequency coil (11, 12, 13, 200) to a digital sample input signal, the analogue-to- digital converter (214) being driven by a local clock, a local clock oscillator (400) adapted to provide the local clock in a local clock time base to the analogue-to-digital converter (214), the local clock time base being independent of the system clock time base, a phase detector (402) adapted to determine a phase difference (512) between the system clock (222) and the local clock, a resampling unit (224) adapted to resample the digital sample input signal to the digital sample output signal using said phase difference (512).

EFFECT: simple circuit of a direct digital receiver.

8 cl, 9 dwg