High bandwidth real-time oscilloscope

Data processing: measuring – calibrating – or testing – Measurement system – Measured signal processing

Reexamination Certificate

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C702S075000, C702S076000, C341S155000, C341S126000

Reexamination Certificate

active

11270187

ABSTRACT:
A method and apparatus for digitizing a signal. The method comprises the steps of receiving an input analog signal, splitting the received input analog signal into a plurality of signals and frequency converting at least one of the signals in accordance with a predetermined periodic function having a predetermined frequency. The signals are then digitized and combined mathematically to form a single output stream that is a substantially correct representation of the original input analog signal.

REFERENCES:
patent: 3783413 (1974-01-01), Froment et al.
patent: 3891803 (1975-06-01), Daguet et al.
patent: 3903484 (1975-09-01), Testani
patent: 4316282 (1982-02-01), Macina
patent: 4354277 (1982-10-01), Crackel et al.
patent: 5187803 (1993-02-01), Sohner et al.
patent: 5659546 (1997-08-01), Elder
patent: 5668836 (1997-09-01), Smith et al.
patent: 5950119 (1999-09-01), McGeehan et al.
patent: 6240150 (2001-05-01), Darveau et al.
patent: 6340883 (2002-01-01), Nara et al.
patent: 6380879 (2002-04-01), Kober et al.
patent: 2002/0150173 (2002-10-01), Buda
patent: 2002/0181614 (2002-12-01), Mostafa et al.
patent: 2004/0041599 (2004-03-01), Murphy
patent: 2004/0246047 (2004-12-01), Manku et al.
patent: 0 275 136 (1988-07-01), None
patent: 0 589 594 (1994-03-01), None
Real-Time Spectrum Analysis Tools Aid Transition to Third-Generation Wireless Technology: Tektronix, Inc. 1999, pp. 1-6.
A Matter of Time: Today's RF Signals Call for a Different Kind of Spectrum Analysis; Tektronix, Inc. 2000, pp. 1-8, no month.
Signature™—High Performance Signal Analyzer 100 Hz to 8 GHz: Anritsu, 2000., pp. 1-2, no month.
Agilent E5052A Signal Source Analyzer 10 MHz to 7 GHz; Agilent Technologies, Jun. 9, 2004, pp. 1-3.
R3681 Signal Analyzer; Advantest, 2004, pp. 1-2, no month.
RF Front-end Considerations for SDR Ultra-Wideband Communications Systems; Stephanie Paquelet et al.; RF Design, Jul. 2004, pp. 44-51.
On Perfect Reconstruction in Critically Sampled Frequency-Domain Scrambler; J.A. Apolinario, Jr., et al.; pp. 1-4, no month.
Sampling and Reconstruction of Periodic Signals; Teodor Neagoe et al.; Apr. 2004, pp. 1-15.
Putting Undersampling to Work; Pentek, Inc.; pp. 1-2, no date.
Reconstruction of Nonuniformly Sampled Bandlimited Signals by Means of Digital Fractional Delay Filters; Hakan Johansson et al.; IEEE Transactions on Signal Processing, vol. 50, No. 11, Nov. 2002; pp. 2757-2767.
Japanese Abstract of JP 06 197019—Hitachi Denshi Ltd.; Jul. 15, 1994.
High-Performance Advanced Filter Bank Analog-to-Digital Converter for Universal RF Receivers; Scott R. Velazquez, V Company; IEEE 1998; pp. 229-232, no month.
Frequency Domain Approach for CMOS Ultra-Wideband Radios; Hyung-Jin Lee et al.; Proceedings for the IEEE Computer Society Annual Symposium on VLSI, 2003; pp. 1-2, no month.
Frequency-Interleaving Technique for High-Speed A/D Conversion; G. Ding et al.; IEEE 2003; pp. 1-857-1-860, no month.
Design of Hybrid Filter Banks for Analog/Digital Conversion; Scott R. Velazquez et al.; IEEE Transactions on Signal Processing, vol. 46, No. 4, Apr. 1998; pp. 956-967.
Analog to Digital Conversion of Ultra-Wideband Signals in Orthogonal Spaces; Sebastian Hoyos et al.; IEEE 2003; pp. 47-51, no month.
Understanding Digital Signal Processing; Richard G. Lyons; Prentice Hall Professional Technical Reference, Second Edition 2004; pp. 30-39; 346-360; 471-479; and 571-572, no month.
Electronics Engineers' Handbook; Donald G. Fink et al.; McGraw Hill Book Company, First Edition 1975; pp. 4-32;14-28 to 14-29; 14-65 to 14-69 and 22-30 to 22-31, no month.
Real-Time Speech Frequency Scrambling and Descrambling (Undated), 17 pages.
Optional Block Function Library for Hypersignal® Block Diagram/RIDE; Advanced Transmission Library; Hyperception, Inc. 1997, no month.

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