Patent ID: 8755461

Claim:
A local wireless signal receiving apparatus using digital radio frequency (RF) processing technology, the apparatus comprising: a receiving digital RF processor comprising a mixer and an intermediate frequency (IF) processor, wherein the mixer includes a first IF filter configured to filter an RF signal, detect a first decimation factor from the filtered RF signal, and remove the first decimation factor to detect a front-end stage of an analog signal corresponding to the RF signal to provide an IF signal, and the IF processor includes a second IF filter configured to filter the IF signal, detect a second decimation factor from the filtered IF signal, and remove the second decimation factor to detect a back-end stage of the analog signal to provide a domain of a single-bit IF signal; a zero-crossing signal detector comprising a one-bit detector configured to detect a zero-crossing signal of the domain of the single-bit IF signal and convert the detected zero-crossing signal into a single bit zero-crossing signal; and a receiving signal processor configured to convert the single bit zero-crossing signal into a local wireless signal.