A digital frequency conversion and tuning scheme for...

H - Electricity – 04 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04B 1/26 (2006.01) H04B 1/04 (2006.01) H04B 1/30 (2006.01)

Patent

CA 2139746

A digital frequency upconversion and downconversion scheme for receivers and transmitters enables high resolution downconversion and upconversion, respectively, with low phase noise. A digital signal processor (DSP) (230) receives temperature measurement information from a temperature transducer associated with a reference oscillator (240), and also receives channel tuning and other information. The DSP adjusts the signal samples accordingly, without adjusting the operation of the oscillator. Additionally, the inventive filtering scheme, preferably implemented in an application specific integrated circuit (ASIC), receives digital filtering coefficient information, digital symbol timing phase control signals, and, in some cases, other information from the DSP. As a result, the scheme enables operation at 1 Hz resolution, with phase noise which is at least 33.5 dB down at 10 Hz in the case of downconversion, and at least 42 dB down at 10 Hz in the case of upconversion.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

A digital frequency conversion and tuning scheme for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with A digital frequency conversion and tuning scheme for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A digital frequency conversion and tuning scheme for... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2065409

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.