Wideband frequency signal digitizer and method

Multiplex communications – Communication over free space – Combining or distributing information via frequency channels

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

370481, 370484, 370497, H04J 105

Patent

active

056595468

ABSTRACT:
A wideband frequency signal digitizer and method for digitizing multiple bands of a wideband frequency signal. The digitizer and method providing for optimally positioning a segment (402) of the wideband frequency signal within a Nyquist band of an analog-to-digital converter. Remaining segments (402) of the wideband frequency signal are closely positioned relative to the first segment such that the entire wideband frequency signal (400) is easily digitized using a single or multiple analog-to-digital converters (36) while reducing or eliminating undesirable spurious signals.

REFERENCES:
patent: 3991277 (1976-11-01), Hirata
patent: 4101738 (1978-07-01), Bellanger et al.
patent: 4112374 (1978-09-01), Steinbrecher
patent: 4206320 (1980-06-01), Keasler et al.
patent: 4230956 (1980-10-01), Steinbrecher
patent: 4237551 (1980-12-01), Narasimha
patent: 4355405 (1982-10-01), Ruys et al.
patent: 4492962 (1985-01-01), Hansen
patent: 4514760 (1985-04-01), Balaban et al.
patent: 4517586 (1985-05-01), Balaban et al.
patent: 4621337 (1986-11-01), Cates et al.
patent: 4652858 (1987-03-01), Kokubo et al.
patent: 4783779 (1988-11-01), Takahata et al.
patent: 4803727 (1989-02-01), Holt et al.
patent: 4876542 (1989-10-01), van Bavel et al.
patent: 4881222 (1989-11-01), Goeckler et al.
patent: 4884265 (1989-11-01), Schroeder et al.
patent: 4893316 (1990-01-01), Janc et al.
patent: 4979188 (1990-12-01), Kotzin et al.
patent: 5058107 (1991-10-01), Stone et al.
patent: 5101501 (1992-03-01), Gilhousen et al.
patent: 5103459 (1992-04-01), Gilhousen et al.
patent: 5109390 (1992-04-01), Gilhousen et al.
patent: 5136612 (1992-08-01), Bi
patent: 5159608 (1992-10-01), Falconer et al.
patent: 5170413 (1992-12-01), Hess et al.
patent: 5187809 (1993-02-01), Rich et al.
patent: 5224122 (1993-06-01), Bruckert
patent: 5251218 (1993-10-01), Stone et al.
patent: 5278837 (1994-01-01), Kelley
patent: 5293329 (1994-03-01), Wishart et al.
patent: 5295153 (1994-03-01), Gudmundson
patent: 5299192 (1994-03-01), Guo et al.
patent: 5313279 (1994-05-01), Wang et al.
patent: 5323157 (1994-06-01), Ledzius et al.
patent: 5347284 (1994-09-01), Volpi et al.
patent: 5392044 (1995-02-01), Kotzin et al.
patent: 5396489 (1995-03-01), Harrison
patent: 5406629 (1995-04-01), Harrison et al.
patent: 5412690 (1995-05-01), Kotzin et al.
Harris Semiconductor Digital Signal Processing Databook, "Numerically Controlled Oscillator/Modulator", HSP45116, pp. 5-26/5-40, Harris Corporation.
Fundamentals of Digital Image Processing by Anil K. Jain, University of California, Davis, 1989 by Prentice-Hall, Inc., pp. 155-159, 185-187.
"Robust Digital Filter Structures", 7-3 Cascade Form Digital Filter Structures, Handbook for Digital Signal Processing by Sanjit Mitra and James Kaiser, John Wiley & Sons 1993.
Hogenauer, Eugene B. "An Economical Class of Digital Filters for Decimation and Interpolation", IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-29, No. 2.
ETSI-SMG, GSM 06.31, 4.0.0, Discontinuous Transmission (DTX) for Full Rate Speech Transmission Channels, Oct. 1992.
ETSI-SMG, GSM 06.12, 4.0.1, Comfort Noise Aspects for Full Rate Speech Traffic Channels, Jan. 1993.
EIA/TIA/IS-95, Requireemnts for Base Station CDMA Operation, pp. 7-1/7-185, Appendix A Requiremetns for CDMA Service OptionsA-1/A-68.

LandOfFree

Say what you really think

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

Rating

Wideband frequency signal digitizer and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wideband frequency signal digitizer and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wideband frequency signal digitizer and method will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1110175

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