Source: http://www.google.de/patents/US6704558
Timestamp: 2013-06-20 02:21:28
Document Index: 471561657

Matched Legal Cases: ['art 2', 'art 2', 'art 2', 'art 1', 'art 2', 'art 2', 'art 2', 'art 1', 'art 2', 'art 2']

Patent US6704558 - Image-reject down-converter and embodiments thereof, such as the family ... - Google PatenteSuche Bilder Maps Play YouTube News Gmail Drive Mehr » Erweiterte Patentsuche | Webprotokoll | Anmelden Erweiterte Patentsuche PatenteA method and system is described for several embodiments of a communication system. In a first embodiment, a method and system is described wherein a signal is received and down-converted and wherein power consumption can be characterized as �ultra-low.� In a second embodiment, a method and system...http://www.google.de/patents/US6704558?utm_source=gb-gplus-sharePatent US6704558 - Image-reject down-converter and embodiments thereof, such as the family radio service Ver�ffentlichungsnummerUS6704558 B1PublikationstypErteilung Anmeldenummer09/476,091 Ver�ffentlichungsdatum9. M�rz 2004Eingetragen3. Jan. 2000 Priorit�tsdatum22. Jan. 1999 Ver�ffentlichungsnummer09476091, 476091, US 6704558 B1, US 6704558B1, US-B1-6704558, US6704558 B1, US6704558B1 ErfinderDavid F. Sorrells, Michael J. Bultman, Charles D. Clements, Robert W. Cook, Joseph M. Hamilla, Richard C. Looke, D. Moses Charley Jr., Gregory S. SilverUrspr�nglich Bevollm�chtigterParkervision, Inc.Patentzitate (101), Nichtpatentzitate (294), Referenziert von (12), Klassifizierungen (7) Externe Links: USPTO, USPTO-Zuordnung, EspacenetImage-reject down-converter and embodiments thereof, such as the family radio serviceUS 6704558 B1 Zusammenfassung A method and system is described for several embodiments of a communication system. In a first embodiment, a method and system is described wherein a signal is received and down-converted and wherein power consumption can be characterized as �ultra-low.� In a second embodiment, a method and system is described wherein undesirable images are rejected in a down-conversion system. In a third embodiment, a method and system is described wherein a signal is transmitted in a highly efficient manner. In one implementation the present invention is used in a family radio system.
wherein step (4) comprises sub-sampling said EM signal using said second control signal to transfer substantial second energy from said EM signal. Beschreibung
Patentzitate Zitiertes PatentEingetragen Ver�ffentlichungsdatum Antragsteller TitelUS205761328. Juli 193213. Okt. 1936General Electric CompanyDiversity factor receiving systemUS22410781. Nov. 19376. Mai 1941Vreeland Frederick KMultiplex communicationUS22703856. Okt. 193920. Jan. 1942Hartford National Bank And Trust CompanyMulticarrier transmission systemUS228357519. Apr. 193819. Mai 1942Radio Corporation Of AmericaHigh frequency transmission systemUS23581522. Okt. 194212. Sept. 1944Standard Telephones And Cables LimitedPhase and frequency modulation systemUS24103506. Febr. 194329. Okt. 1946Federal Telephone And Radio CorporationMethod and means for communicationUS245143023. Apr. 194612. Okt. 1948Jefferson Standard Broadcasting CompanyCarrier frequency shift signalingUS24620697. Mai 194322. Febr. 1949International Standard Electric CorporationRadio communication systemUS246218128. Sept. 194422. Febr. 1949Western Electric Company, IncorporatedRadio transmitting systemUS247279829. Nov. 194314. Juni 1949Radio Corporation Of AmericaLow-pass filter systemUS249785919. Nov. 194721. Febr. 1950The Western Union Telegraph CompanyFrequency diversity telegraph systemUS249927914. Apr. 194828. Febr. 1950Telefonaktiebolaget L M EricssonSingle side band modulatorUS280220825. Juni 19526. Aug. 1957Hobbs Charles FRadio frequency multiplexingUS298587524. Dez. 195823. Mai 1961Marconi'S Wireless Telegraph Company LimitedRadio communication systemsUS302330919. Dez. 196027. Febr. 1962Bell Telephone Laboratories, IncorporatedCommunication systemUS306967922. Apr. 195918. Dez. 1962Westinghouse Electric CorporationMultiplex communication systemsUS310439318. Okt. 196117. Sept. 1963Vogelman Joseph HMethod and apparatus for phase and amplitude control in ionospheric communications systemsUS311410623. Nov. 196010. Dez. 1963Mcmauus Robert PaulFrequency diversity systemUS311811710. Okt. 196014. Jan. 1964International Standard Electric CorporationModulators for carrier communication systemsUS32266438. Jan. 196228. Dez. 1965Avco CorporationCommand communication system of the rectangular wave typeUS324608426. Aug. 196012. Apr. 1966Bolt Beranek & Newman, Inc.Method of and apparatus for speech compression and the likeUS325869428. Juni 1966 Titel nicht verf�gbarUS338359815. Febr. 196514. Mai 1968Space-General CorporationTransmitter for multiplexed phase modulated singaling systemUS338482219. M�rz 196521. Mai 1968Nippon Electric Company LimitedFrequency-shift-keying phase-modulation code transmission systemUS34547183. Okt. 19668. Juli 1969Xerox Corp.Fsk transmitter with transmission of the same number of cycles of each carrier frequencyUS352329112. Sept. 19674. Aug. 1970Intern. Business Machines Corp.Data transmission systemUS354834215. Okt. 196815. Dez. 1970Intern. Business Machines Corp.Digitally controlled amplitude modulation circuitUS355542828. Febr. 196912. Jan. 1971Xerox Corp.Fsk receiver for detecting a data signal with the same number of cycles of each carrier frequencyUS361789227. Febr. 19672. Nov. 1971Rca Corp.Frequency modulation system for spreading radiated powerUS36214023. Aug. 197016. Nov. 1971Bell Telephone Laboratories Inc.Sampled data filterUS362288522. Juli 196923. Nov. 1971Autophon Ag.System for the parallel transmission of signalsUS362316017. Sept. 196923. Nov. 1971Sanders Associates Inc.Data modulator employing sinusoidal synthesisUS36264177. M�rz 19697. Dez. 1971Everett A. GilbertHybrid frequency shift-amplitude modulated tone systemUS36296966. Aug. 196821. Dez. 1971Northeast Electronics Corp.Method and apparatus for measuring delay distortion including simultaneously applied modulated signalsUS366226817. Nov. 19709. Mai 1972Bell Telephone Laboratories Inc.Diversity communication system using distinct spectral arrangements for each branchUS368984123. Okt. 19705. Sept. 1972Signatron Inc.Communication system for eliminating time delay effects when used in a multipath transmission mediumUS370244016. Nov. 19707. Nov. 1972Motorola Inc.Selective calling system providing an increased number of calling codes or auxiliary information transferUS37145776. Mai 197130. Jan. 1973W Us HayesSingle sideband am-fm modulation systemUS371673019. Apr. 197113. Febr. 1973Motorola Inc,UsIntermodulation rejection capabilities of field-effect transistor radio frequency amplifiers and mixersUS37178442. Apr. 197020. Febr. 1973Inst Fr Du Petrole Des Carburants Et Lubrifiants,FrProcess of high reliability for communications between a master installation and secondary installations and device for carrying out this processUS373504828. Mai 197122. Mai 1973Motorola Inc,UsIn-band data transmission systemUS376798413. Sept. 197223. Okt. 1973Nippon Electric Co Ltd,JaSchottky barrier type field effect transistorUS380681120. Jan. 197223. Apr. 1974Gte Sylvania Inc,UsMultiple carrier phase modulated signal generating apparatusUS385253019. M�rz 19733. Dez. 1974M Lu ShenSingle stage power amplifiers for multiple signal channelsUS386860118. Juni 197325. Febr. 1975The United States Of America As Represented By The Secretary Of The NavyDigital single-sideband modulatorUS39493003. Juli 19746. Apr. 1976Sadler; William S.Emergency radio frequency warning deviceUS396720225. Juli 197429. Juni 1976Northern Illinois Gas CompanyData transmission system including an RF transponder for generating a broad spectrum of intelligence bearing sidebandsUS39809457. Okt. 197414. Sept. 1976Raytheon CompanyDigital communications system with immunity to frequency selective fadingUS398728021. Mai 197519. Okt. 1976The United States Of America As Represented By The Secretary Of The NavyDigital-to-bandpass converterUS399127711. Febr. 19749. Nov. 1976Hirata; YoshimutsuFrequency division multiplex system using comb filtersUS400300227. Aug. 197511. Jan. 1977U.S. Philips CorporationModulation and filtering deviceUS401396616. Okt. 197522. M�rz 1977The United States Of America As Represented By The Secretary Of The NavyFm rf signal generator using step recovery diodeUS40177988. Sept. 197512. Apr. 1977Ncr CorporationSpread spectrum demodulatorUS401914024. Okt. 197519. Apr. 1977Bell Telephone Laboratories, IncorporatedMethods and apparatus for reducing intelligible crosstalk in single sideband radio systemsUS40328475. Jan. 197628. Juni 1977Raytheon CompanyDistortion adapter receiver having intersymbol interference correctionUS403573215. M�rz 197612. Juli 1977The United States Of America As Represented By The Secretary Of The ArmyHigh dynamic range receiver front end mixer requiring low local oscillator injection powerUS404712116. Okt. 19756. Sept. 1977The United States Of America As Represented By The Secretary Of The NavyRF signal generatorUS405147521. Juli 197627. Sept. 1977The United States Ofamerica As Represented By The Secretary Of The ArmyRadio receiver isolation systemUS406684124. Sept. 19763. Jan. 1978Serck Industries LimitedData transmitting systemsUS40669191. Apr. 19763. Jan. 1978Motorola, Inc.Sample and hold circuitUS408057316. Juli 197621. M�rz 1978Motorola, Inc.Balanced mixer using complementary devicesUS40817481. Juli 197628. M�rz 1978Northern Illinois Gas CompanyFrequency/space diversity data transmission systemUS413076531. Mai 197719. Dez. 1978Arakelian; RafiLow supply voltage frequency multiplier with common base transistor amplifierUS413080623. Mai 197719. Dez. 1978U.S. Philips CorporationFilter and demodulation arrangementUS414215511. Mai 197727. Febr. 1979Nippon Telegraph And Telephone Public CorporationDiversity systemUS41707646. M�rz 19789. Okt. 1979Bell Telephone Laboratories, IncorporatedAmplitude and frequency modulation systemUS420417130. Mai 197820. Mai 1980Rca CorporationFilter which tracks changing frequency of input signalUS42108728. Sept. 19781. Juli 1980American Microsystems, Inc.High pass switched capacitor filter sectionUS422097724. Okt. 19782. Sept. 1980Sony CorporationSignal transmission circuitUS42453558. Aug. 197913. Jan. 1981Eaton CorporationMicrowave frequency converterUS425306613. Mai 198024. Febr. 1981Fisher; Charles B.Synchronous detection with samplingUS425306711. Dez. 197824. Febr. 1981Rockwell International CorporationBaseband differentially phase encoded radio signal detectorUS42530692. Apr. 197924. Febr. 1981Siemens AktiengesellschaftFilter circuit having a biquadratic transfer functionUS430861426. Okt. 197829. Dez. 1981Fisher; Charles B.Noise-reduction sampling systemUS43203613. Dez. 197916. M�rz 1982Marconi Instruments LimitedAmplitude and frequency modulators using a switchable component controlled by data signalsUS432053618. Sept. 197916. M�rz 1982Dietrich; James L.Subharmonic pumped mixer circuitUS433432431. Okt. 19808. Juni 1982Rca CorporationComplementary symmetry FET frequency converter circuitsUS43464771. Aug. 197724. Aug. 1982E-Systems, Inc.Phase locked sampling radio receiverUS435540126. Sept. 198019. Okt. 1982Nippon Electric Co., Ltd.Radio transmitter/receiver for digital and analog communications systemUS435655820. Dez. 197926. Okt. 1982Martin Marietta CorporationOptimum second order digital filterUS43608678. Dez. 198023. Nov. 1982Bell Telephone Laboratories, IncorporatedBroadband frequency multiplication by multitransition operation of step recovery diodeUS436313227. Jan. 19817. Dez. 1982Thomson-CsfDiversity radio transmission system having a simple and economical structureUS436521724. Nov. 198021. Dez. 1982Thomson-CsfCharge-transfer switched-capacity filterUS436952230. Aug. 197918. Jan. 1983Motorola, Inc.Singly-balanced active mixer circuitUS437057217. Jan. 198025. Jan. 1983Trw Inc.Differential sample-and-hold circuitUS43843573. Apr. 198117. Mai 1983Canadian Patens & Development LimitedSelf-synchronization circuit for a FFSK or MSK demodulatorUS438957927. Febr. 198121. Juni 1983Motorola, Inc.Sample and hold circuitUS43922558. Jan. 19815. Juli 1983Thomson-CsfCompact subharmonic mixer for EHF wave receiver using a single wave guide and receiver utilizing such a mixerUS43933958. Sept. 198112. Juli 1983Rca CorporationBalanced modulator with feedback stabilization of carrier balanceUS44306298. Apr. 19817. Febr. 1984Siemens AktiengesellschaftElectrical filter circuit operated with a definite sampling and clock frequency f.sub.T which consists of CTD elementsUS444643826. Okt. 19811. Mai 1984Gte Automatic Electric IncorporatedSwitched capacitor n-path filterUS445699010. Febr. 198226. Juni 1984Fisher; Charles B.Periodic wave elimination by negative feedbackUS447014526. Juli 19824. Sept. 1984Hughes Aircraft CompanySingle sideband quadricorrelatorUS447278513. Okt. 198118. Sept. 1984Victor Company Of Japan, Ltd.Sampling frequency converterUS447922629. M�rz 198223. Okt. 1984At&T Bell LaboratoriesFrequency-hopped single sideband mobile radio systemUS44814907. Juni 19826. Nov. 1984Ael Microtel, Ltd.Modulator utilizing high and low frequency carriersUS44816422. Juni 19816. Nov. 1984Texas Instruments IncorporatedIntegrated circuit FSK modemUS448301731. Juli 198113. Nov. 1984Rca CorporationPattern recognition system using switched capacitorsUS448414310. Dez. 198220. Nov. 1984Rockwell International CorporationCCD Demodulator circuitUS5678220 *24. Mai 199514. Okt. 1997France TelecomDevice for rejection of the image signal of a signal converted to an intermediate frequencyUS5901349 *11. Dez. 19964. Mai 1999Matra CommunicationMixer device with image frequency rejection* Vom Pr�fer zitiertNichtpatentzitateReferenz1"DSO takes sampling rate to 1 Ghz," Electronic Engineering, Morgan Grampian Publishers, vol. 59, No. 723, pp. 77 and 79 (Mar. 1987).2"New zero IF chipset from Philips," Electronic Engineering, United News & Media, vol. 67, No. 825, p. 10 (Sep. 1995).3"Project COST 205: Scintillatious in Earth-satellite links," Alta Frequenza: Scientific Review in Electronics, AEI, vol. LIV, No. 3, pp. 209-211 (May-Jun., 1985).4"Sampling Loops Lock Sources to 23 Ghz," Microwaves & RF, Penton Publishing, p. 212 (Sep. 1990).5Aghvami, H. et al., "Land Mobile Satellites Using the Highly Elliptic Orbits-The UK T-SAT Mobile Payload," Fourth International Conference on Satellite Systems for Mobile Communications and Navigation, IEE, pp. 147-153 (Oct. 17-19, 1988).6Aghvami, H. et al., "Land Mobile Satellites Using the Highly Elliptic Orbits�The UK T-SAT Mobile Payload," Fourth International Conference on Satellite Systems for Mobile Communications and Navigation, IEE, pp. 147-153 (Oct. 17-19, 1988).7Akers, N.P. et al., "RF Sampling Gates: a Brief Review," IEE Proceedings, IEE, vol. 133, Part A, No. 1, pp. 45-49 (Jan. 1986).8Akos, D.M. et al., "Direct Bandpass Sampling of Multiple Distinct RF Signals," IEEE Transactions on Communications, IEEE, vol. 47, No. 7, pp. 983-988 (Jul. 1999).9Al-Ahmad, H.A.M. et al., "Doppler Frequency Correction for a Non-Geostationary Communications Satellite. Techniques for CERS and T-SAT," Electronics Division Colloquium on Low Noise Oscillators and Synthesizers, IEE, pp. 4/1-4/5 (Jan. 23, 1986).10Ali, I. et al., "Doppler Characterization for LEO Satellites," IEEE Transactions on Communications, IEEE, vol. 46, No. 3, pp. 309-313 (Mar. 1998).11Allan, D.W., "Statistics of Atomic Frequency Standards," Proceedings of the IEEE Special Issue on Frequency Stability, IEEE, pp. 221-230 (Feb. 1966).12Allstot, D.J. and Black, Jr. W.C., "Technological Design Considerations for Monolithic MOS Switched-Capacitor Filtering Systems," Proceedings of the IEEE, IEEE, vol. 71, No. 8, pp. 967-986 (Aug. 1983).13Allstot, D.J. et al., "MOS Switched Capacitor Ladder Filters," IEEE Journal of Solid-State Circuits, IEEE, vol. SC-13, No. 6, pp. 806-814 (Dec. 1978).14Alouini, M. et al., "Channel Characterization and Modeling for Ka-Band Very Small Aperture Terminals," Proceedings of the IEEE, IEEE, vol. 85, No. 6, pp. 981-997 (Jun. 1997).15Andreyev, G.A. and Ogarev, S.A., "Phase Distortions of Keyed Millimeter-Wave Signals in the Case of Propagation in a Turbulent Atmosphere," Telecommunications and Radio Engineering, Scripta Technica, vol. 43, No. 12, pp. 87-90 (Dec. 1988).16Antonetti, A. et al., "Optoelectronic Sampling in the Picosecond Range," Optics Communications, North-Holland Publishing Company, vol. 21, No. 2, pp. 211-214 (May 1977).17Austin, J. et al., "Doppler Correction of the Telecommunication Payload Oscillators in the UK T-SAT," 18<th >European Microwave Conference, Microwave Exhibitions and Publishers Ltd., pp. 851-857 (Sep. 12-15, 1988).18Austin, J. et al., "Doppler Correction of the Telecommunication Payload Oscillators in the UK T-SAT," 18th European Microwave Conference, Microwave Exhibitions and Publishers Ltd., pp. 851-857 (Sep. 12-15, 1988).19Auston, D.H., "Picosecond optoelectronic switching and gating in silicon," Applied Physics Letters, American Institute of Physics, vol. 26, No. 3, pp. 101-103 (Feb. 1, 1975).20Baher, H., "Transfer Functions for Switched-Capacitor and Wave Digital Filters," IEEE Transactions on Circuits and Systems, IEEE Circuits and Systems Society, vol. CAS-33, No. 11, pp. 1138-1142 (Nov. 1986).21Baines, R., "The DSP Bottleneck," IEEE Communications Magazine, IEEE Communications Society, pp. 46-54 (May 1995).22Banjo, O.P. and Vilar, E. "Measurement and Modeling of Amplitude Scintillations on Low-Elevation Earth-Space Paths and Impact on Communication Systems," IEEE Transactions on Communications, IEEE Communications Society, vol. COM-34, No. 8, pp. 774-780 (Aug. 1986).23Banjo, O.P. and Vilar, E., "Binary Error Probabilities on Earth-Space Links Subject to Scintillation Fading," Electronics Letters, IEE, vol. 21, No. 7, pp. 296-297 (Mar. 28, 1985).24Banjo, O.P. and Vilar, E., "The Dependence of Slant Path Amplitude Scintillations on Various Meteorological Parameters," Fifth International Conference on Antennas and Propagation (ICAP 87) Part 2: Propagation, IEE, pp. 277-280 (Mar. 30 -Apr. 2, 1987).25Banjo, O.P. et al., "Tropospheric Amplitude Spectra Due to Absorption and Scattering in Earth-Space Paths," Fourth International Conference on Antennas and Propagation (ICAP 85), IEE, pp. 77-82 (Apr. 16-19, 1985).26Basili, P. et al., "Case Study of Intense Scintillation Events on the OTS Path," IEEE Transactions on Antennas and Propagation, IEEE, vol. 38, No. 1, pp. 107-113 (Jan. 1990).27Basili, P. et al., "Observation of High C<2 >and Turbulent Path Length on OTS Space-Earth Link," Electronics Letters, IEE, vol. 24, No. 17, pp. 1114-1116 (Aug. 18, 1988).28Basili, P. et al., "Observation of High C2 and Turbulent Path Length on OTS Space-Earth Link," Electronics Letters, IEE, vol. 24, No. 17, pp. 1114-1116 (Aug. 18, 1988).29Blakey, J.R. et al., "Measurement of Atmospheric Millimetre-Wave Phase Scintillations in an Absorption Region," Electronics Letters, IEE, vol. 21, No. 11, pp. 486-487 (May 23, 1985).30Burgue�o, A. et al., "Influence of rain gauge integration time on the rain rate statistics used in microwave communications," annales des t�l�communications, International Union of Radio Science, pp. 522-527 (Sep./Oct. 1988).31Burgue�o, A. et al., "Long Term Statistics of Precipitation Rate Return Periods in the Context of Microwave Communications," Sixth International Conference on Antennas and Propagation (ICAP 89) Part 2: Propagation, IEE, pp. 297-301 (Apr. 4-7, 1989).32Burgue�o, A. et al., "Long-Term Joint Statistical Analysis of Duration and Intensity of Rainfall Rate with Application to Microwave Communications," Fifth International Conference on Antennas and Propagation (ICAP 87) Part 2: Propagation, IEE, pp. 198-201 (Mar. 30-Apr. 2, 1987).33Burgue�o, A. et al., "Spectral Analysis of 49 Years of Rainfall Rate and Relation to Fade Dynamics," IEEE Transactions on Communications, IEEE Communications Society, vol. 38, No. 9, pp. 1359-1366 (Sep. 1990).34Catalan, C. and Vilar, E., "Approach for satellite slant path remote sensing," Electronics Letters, IEE, vol. 34, No. 12, pp. 1238-1240 (Jun. 11, 1998).35Chan, P. et al., "A Highly Linear 1-GHz CMOS Downconversion Mixer," European Solid State Circuits Conference, IEEE Communication Society, pp. 210-213 (Sep. 22-24, 1993).36Copy of Declaration of Alex Holtz filed in patent application Ser. No. 09/176,022, which is directed to related subject matter.37Copy of Declaration of Charley D. Moses, Jr. filed in patent application Ser. No. 09/176,022, which is directed to related subject matter.38Copy of Declaration of Jeffrey L. Parker and David F. Sorrells, with attachment Exhibit 1, filed in patent application Ser. No. 09/176,022, which is directed to related subject matter.39Copy of Declaration of Michael J. Bultman filed in patent application Ser. No. 09/176,022, which is directed to related subject matter.40Copy of Declaration of Richard C. Looke filed in patent application Ser. No. 09/176,022, which is directed to related subject matter.41Copy of Declaration of Robert W. Cook filed in patent application Ser. No. 09/176,022, which is directed to related subject matter.42Dewey, R.J. and Collier, C.J., "Multi-Mode Radio Receiver," Electronics Division Colloquium on Digitally Implemented Radios, IEE, pp. 3/1-3/5 (Oct. 18, 1985).43DIALOG File 347 (JAPIO) English Language Patent Abstract for JP 2-131629, published May 21, 1990, (1 page).44DIALOG File 347 (JAPIO) English Language Patent Abstract for JP 2-276351, published Nov. 13, 1990, (1 page).45DIALOG File 347 (JAPIO) English Language Patent Abstract for JP 2-39632, published Feb. 8, 1990, (1 page).46DIALOG File 348 (European Patents) English Language Patent Abstract for EP 0 785 635 A1, published Dec. 26, 1996, (3 pages).47DIALOG File 348 (European Patents) English Language Patent Abstract for EP 35166 A1, published Feb. 18, 1981, (2 pages).48Dines, J.A.B., "Smart Pixel Optoelectronic Receiver Based on a Charge Sensitive Amplifier Design," IEEE Journal of Selected Topics in Quantum Electronics, IEEE, vol. 2, No. 1, pp. 117-120 (Apr. 1996).49English-language Abstract of Japanese Patent Publication No. 04-123614, from http://www1.ipdl.jpo.go.jp, 1 page (Apr. 23, 1992�Date of publication of application).50English-language Abstract of Japanese Patent Publication No. 04-127601, from http://www1.ipdl.jpo.go.jp, 1 page (Apr. 28, 1992�Date of publication of application).51English-language Abstract of Japanese Patent Publication No. 05-175730, from http://www1.ipdl.jpo.go.jp, 1 page (Jul. 13, 1993�Date of publication of application).52English-language Abstract of Japanese Patent Publication No. 05-175734, from http://www1.ipdl.jpo.go.jp, 1 page (Jul. 13, 1993�Date of publication of application).53English-language Abstract of Japanese Patent Publication No. 05-327356, 1 page (Dec. 10, 1993�Date of publication of application).54English-language Abstract of Japanese Patent Publication No. 07-154344, from http://www1.ipdl.jpo.go.jp, 2 pages (Jun. 16, 1995�Date of publication of application).55English-language Abstract of Japanese Patent Publication No. 07-307620, from http://www1.ipdl.jpo.go.jp, 1 page (Nov. 21, 1995�Date of publication of application).56English-language Abstract of Japanese Patent Publication No. 55-066057, from http://www1.ipdl.jpo.go.jp, 1 page (May 19, 1980�Date of publication of application).57English-language Abstract of Japanese Patent Publication No. 58-133004, from http://www1.ipdl.jpo.go.jp, 2 pages (Aug. 8, 1993�Date of publication of application).58English-language Abstract of Japanese Patent Publication No. 60-058705, from http://www1.ipdl.jpo.go.jp, 1 page (Apr. 4, 1985�Date of publication of application).59English-language Abstract of Japanese Patent Publication No. 61-030821, 1 page (Feb. 13, 1986�Date of publication of application).60English-language Abstract of Japanese Patent Publication No. 63-065587, from http://www1.ipdl.jpo.go.jp, 1 page (Mar. 24, 1988�Date of publication of application).61English-language Abstract of Japanese Patent Publication No. 63-153691, from http://www1.ipdl.jpo.go.jp, 1 page (Jun. 27, 1988�Date of publication of application).62English-language Abstract of JP 06-237276, published Aug. 23, 1994, from http://www1.ipdl.jpo.go.jp, 2 pages (last visited Jan. 2, 2002).63English-language Abstract of JP 08-023359, published Jan. 23, 1996, from http://www1.ipdl.jpo.go.jp, 2 pages (last visited Jan. 2, 2002).64English-language Abstract of JP 08-032556, published Feb. 2, 1996, from http://www1.ipdl.jpo.go.jp, 2 pages (last visited Dec. 14, 2001).65English-language Abstract of JP 08-139524, published May 31, 1996, from http://www1.ipdl.jpo.go.jp, 2 pages (last visited Dec. 14, 2001).66English-language Abstract of JP 59-144249, published Aug. 18, 1984, from http://www1.ipdl.jpo.go.jp, 2 pages (last visited Jan. 2, 2002).67English-language Abstract of JP 63-054002, published Mar. 8, 1988, from http://www1.ipdl.jpo.go.jp, 2 pages (last visited Jan. 2, 2002).68Erdi, G. and Henneuse, P.R., "A Precision FET-Less Sample-and-Hold with High Charge-to-Droop Current Ratio," IEEE Journal of Solid-State Circuits, IEEE, vol. SC-13, No. 6, pp. 864-873 (Dec. 1978).69Faulkner, N.D. and Vilar, E., "Subharmonic Sampling for the Measurement of Short Term Stability of Microwave Oscillators," IEEE Transactions on Instrumentation and Measurement, IEEE, vol. IM-32, No. 1, pp. 208-213 (Mar. 1983).70Faulkner, N.D. and Vilar, E., "Time Domain Analysis of Frequency Stability Using Non-Zero Dead-Time Counter Techniques," CPEM 84 Digest Conference on Precision Electromagnetic Measurements, IEEE, pp. 81-82 (1984).71Faulkner, N.D. et al., "Sub-Harmonic Sampling for the Accurate Measuremnet of Frequency Stability of Microwave Oscillators," CPEM 82 Digest: Conference on Precision Electromagnetic Measurements, IEEE, pp. M-10 and M-11 (1982).72Fest, Jean-Pierre , "Le Convertisseur A/N Revolutionne Le Recepteur Radio," Electronique, JMJ (Publisher), No. 54, pp. 40-42 (Dec. 1995).73Fest, Jean-Pierre, "The A/D Converter Revolutionizes the Radio Receiver," Electronique, JMJ (Publisher), No. 54, 3 pages (Dec. 1995). (Translation of Doc. AQ50).74Filip, M. and Vilar, E., "Optimum Utilization of the Channel Capacity of a Satellite Link in the Presence of Amplitude Scintillations and Rain Attenuation," IEEE Transactions on Communications, IEEE Communications Society, vol. 38, No. 11, pp. 1958-1965 (Nov. 1990).75Fukahori, K., "A CMOS Narrow-Band Signaling Filter with Q Reduction," IEEE Journal of Solid-State Circuits, IEEE, vol. SC-19, No. 6, pp. 926-932 (Dec. 1984).76Fukuchi, H. and Otsu, Y., "Available time statistics of rain attenuation on earth-space path," IEE Proceedings-H: Microwaves, Antennas and Propagation, IEE, vol. 135, Pt. H, No. 6, pp. 387-390 (Dec. 1988).77Fukuchi, H. and Otsu, Y., "Available time statistics of rain attenuation on earth-space path," IEE Proceedings�H: Microwaves, Antennas and Propagation, IEE, vol. 135, Pt. H, No. 6, pp. 387-390 (Dec. 1988).78Gibbins, C.J. and Chadha, R., "Millimetre-wave propagation through hydrocarbon flame," IEE Proceedings, IEE, vol. 134, Pt. H, No.2, pp. 169-173 (Apr. 1987).79Gilchrist, B. et al., "Sampling hikes performance of frequency synthesizers," Microwaves & RF, Hayden Publishing, vol. 23, No. 1, pp. 93-94 and 110 (Jan. 1984).80Gossard, E.E., "Clear weather meteorological effects on propagation at frequencies above 1 Ghz," Radio Science, American Geophysical Union, vol. 16, No. 5, pp. 589-608 (Sep.-Oct. 1981).81Gregorian, R. et al., "Switched-Capacitor Circuit Design," Proceedings of the IEEE, IEEE, vol. 71, No. 8, pp. 941-966 (Aug. 1983).82Groshong et al., "Undersampling Techniques Simplify Digital Radio," Electronic Design, Penton Publishing, pp. 67-68, 70, 73-75 and 78 (May 23, 1991).83Grove, W.M., "Sampling for Oscilloscopes and Other RF Systems: Dc through X-Band," IEEE Transactions on Microwave Theory and Techniques, IEEE, pp. 629-635 (Dec. 1966).84Haddon, J. and Vilar, E., "Scattering Induced Microwave Scintillations from Clear Air and Rain on Earth Space Paths and the Influence of Antenna Aperture," IEEE Transactions on Antennas and Propagation, IEEE, vol. AP-34, No. 5, pp. 646-657 (May 1986).85Haddon, J. et al., "Measurement of Microwave Scintillations on a Satellite Down-Link at X-Band," Antennas and Propagation, IEE, pp. 113-117 (1981).86Hafdallah, H. et al., "2-4 Ghz MESFET Sampler," Electronics Letters, IEE, vol. 24, No. 3, pp. 151-153 (Feb. 4, 1988).87Herben, M.H.A.J., "Amplitude and Phase Scintillation Measurements on 8-2 km Line-Of-Sight Path at 30 Ghz," Electronics Letters, IEE, vol. 18, No. 7, pp. 287-289 (Apr. 1, 1982).88Hewitt, A. and Vilar, E., "Selective fading on LOS Microwave Links: Classical and Spread-Spectrum Measurement Techniques," IEEE Transactions on Communications, IEEE Communications Society, vol. 36, No. 7, pp. 789-796 (Jul. 1988).89Hewitt, A. et al., "An 18 Ghz Wideband LOS Multipath Experiment," International Conference on Measurements for Telecommunication Transmission Systems-MTTS 85, IEE, pp. 112-116 (Nov. 27-28, 1985).90Hewitt, A. et al., "An Autoregressive Approach to the Identification of Multipath Ray Parameters from Field Measurements," IEEE Transactions on Communications, IEEE Communications Society, vol. 37, No. 11, pp. 1136-1143 (Nov. 1989).91Hewitt, A. et al., "An 18 Ghz Wideband LOS Multipath Experiment," International Conference on Measurements for Telecommunication Transmission Systems�MTTS 85, IEE, pp. 112-116 (Nov. 27-28, 1985).92Hospitalier, E., "Instruments for Recording and Observing Rapidly Varying Phenomena," Science Abstracts, IEE, vol. VII, pp. 22-23 (1904).93Howard, I.M. and Swansson, N.S., "Demodulating High Frequency Resonance Signals for Bearing Fault Detection," The Institution of Engineers Australia Vibration and Noise Conference, Institution of Engineers, Australia, pp. 115-121 (Sep. 18-20, 1990).94Hu, X., A Switched-Current Sample-and-Hold Amplifier for FM Demodulation, Thesis for Master of Applied Science, Dept. of Electrical and Computer Engineering, University of Toronto, UMI Dissertation Services, pp. 1-64 (1995).95Hung, H-L. A. et al., "Characterization of Microwave Integrated Circuits Using An Optical Phase-Locking and Sampling System," IEEE MTT-S Digest, IEEE, pp. 507-510 (1991).96Hurst, P.J., "Shifting the Frequency Response of Switched-Capacitor Filters by Nonuniform Sampling," IEEE Transactions on Circuits and Systems, IEEE Circuits and Systems Society, vol. 38, No. 1, pp. 12-19 (Jan. 1991).97Itakura, T., "Effects of the sampling pulse width on the frequency characteristics of a sample-and-hold circuit," IEE Proceedings Circuits, Devices and Systems, IEE, vol. 141, No. 4, pp. 328-336 (Aug. 1994).98Janssen, J.M.L. and Michels, A.J., "An Experimental 'Stroboscopic' Oscilloscope for Frequencies up to about 50 Mc/s: II. Electrical Build-Up," Philips Technical Review, Philips Research Laboratories, vol. 12, No. 3, pp. 73-82 (Sep. 1950).99Janssen, J.M.L. and Michels, A.J., "An Experimental �Stroboscopic� Oscilloscope for Frequencies up to about 50 Mc/s: II. Electrical Build-Up," Philips Technical Review, Philips Research Laboratories, vol. 12, No. 3, pp. 73-82 (Sep. 1950).100Janssen, J.M.L., "An Experimental 'Stroboscopic' Oscilloscope for Frequencies up to about 50 Mc/s: I. Fundamentals," Philips Technical Review, Philips Research Laboratories, vol. 12, No. 2, pp. 52-59 (Aug. 1950).101Janssen, J.M.L., "An Experimental �Stroboscopic� Oscilloscope for Frequencies up to about 50 Mc/s: I. Fundamentals," Philips Technical Review, Philips Research Laboratories, vol. 12, No. 2, pp. 52-59 (Aug. 1950).102Jondral, V.F. et al., "Doppler Profiles for Communication Satellites," Frequenz, Herausberger, pp. 111-116 (May-Jun. 1996).103Kaleh, G.K., "A Frequency Diversity Spread Spectrum System for Communication in the Presence of In-band Interference," 1995 IEEE Globecom, IEEE Communications Society, pp. 66-70 (1995).104Karasawa, Y. et al., "A New Prediction Method for Tropospheric Scintillation on Earth-Space Paths," IEEE Transactions on Antennas and Propagation, IEEE Antennas and Propagation Society, vol. 36, No. 11, pp. 1608-1614 (Nov. 1988).105Kirsten, J. and Fleming, J., "Undersampling reduces data-acquisition costs for select applications," EDN, Cahners Publishing, vol. 35, No. 13, pp. 217-222, 224, 226-228 (Jun. 21, 1990).106Lam, W.K. et al., "Measurement of the Phase Noise Characteristics of an Unlocked Communications Channel Identifier," Proceedings of the 1993 IEEE International Frequency Control Symposium, IEEE, pp. 283-288 (Jun. 2-4, 1993).107Lam, W.K. et al., "Wideband sounding of 11.6 Ghz transhorizon channel," Electronics Letters, IEE, vol. 30, No. 9, pp. 738-739 (Apr. 28, 1994).108Larkin, K.G., "Efficient demodulator for bandpass sampled AM signals," Electronics Letters, IEE, vol. 32, No. 2, pp. 101-102 (Jan. 18, 1996).109Lau, W.H. et al., "Analysis of the Time Variant Structure of Microwave Line-of-sight Multipath Phenomena," IEEE Global Telecommunications Conference & Exhibition, IEEE, pp. 1707-1711 (Nov. 28-Dec. 1, 1988).110Lau, W.H. et al., "Improved Prony Algorithm to Identify Multipath Components," Electronics Letters, IEE, vol. 23, No. 20, pp. 1059-1060 (Sep. 24, 1987).111Lesage, P. and Audoin, C., "Effect of Dead-Time on the Estimation of the Two-Sample Variance," IEEE Transactions on Instrumentation and Measurement, IEEE Instrumentation and Measurement Society, vol. IM-28, No. 1, pp. 6-10 (Mar. 1979).112Liechti, C.A., "Performance of Dual-gate GaAs MESFET's as Gain-Controlled Low-Noise Amplifiers and High-Speed Modulators," IEEE Transactions on Microwave Theory and Techniques, IEEE Microwave Theory and Techniques Society, vol. MTT-23, No. 6, pp. 461-469 (Jun. 1975).113Linnenbrink, T.E. et al., "A One Gigasample Per Second Transient Recorder," IEEE Transactions on Nuclear Science, IEEE Nuclear and Plasma Sciences Society, vol. NS-26, No. 4, pp. 4443-4449 (Aug. 1979).114Liou, M.L., "A Tutorial on Computer-Aided Analysis of Switched-Capacitor Circuits," Proceedings of the IEEE, IEEE, vol. 71, No. 8, pp. 987-1005 (Aug. 1983).115Lo, P. et al., "Coherent Automatic Gain Control," IEE Colloquium on Phase Locked Techniques, IEE, pp. 2/1-2/6 (Mar. 26, 1980).116Lo, P. et al., "Computation of Rain Induced Scintillations on Satellite Down-Links at Microwave Frequencies," Third International Conference on Antennas and Propagation (ICAP 83), pp. 127-131 (Apr. 12-15, 1983).117Lo, P.S.L.O. et al., "Observations of Amplitude Scintillations on a Low-Elevation Earth-Space Path," Electronics Letters, IEE, vol. 20, No. 7, pp. 307-308 (Mar. 29, 1984).118Madani, K. and Aithison, C.S., "A 20 Ghz Microwave Sampler," IEEE Transactions on Microwave Theory and Techniques, IEEE Microwave Theory and Techniques Society, vol. 40, No. 10, pp. 1960-1963 (Oct. 1992).119Marsland, R.A. et al., "130 Ghz GaAs monolithic integrated circuit sampling head," Appl. Phys. Lett., American Institute of Physics, vol. 55, No. 6, pp. 592-594 (Aug. 7, 1989).120Martin, K. and Sedra, A.S., "Switched-Capacitor Building Blocks for Adaptive Systems," IEEE Transactions on Circuits and Systems, IEEE Circuits and Systems Society, vol. CAS-28, No. 6, pp. 576-584 (Jun. 1981).121Marzano, F.S. and d'Auria, G., "Model-based Prediction of Amplitude Scintillation variance due to Clear-Air Tropospheric Turbulence on Earth-Satellite Microwave Links," IEEE Transactions on Antennas and Propagation, IEEE Antennas and Propagation Society, vol. 46, No. 10, pp. 1506-1518 (Oct. 1998).122Matricciani, E., "Prediction of fade durations due to rain in satellite communication systems," Radio Science, American Geophysical Union, vol. 32, No. 3, pp. 935-941 (May-Jun. 1997).123McQueen, J.G., "The Monitoring of High-Speed Waveforms," Electronic Engineering, Morgan Brothers Limited, vol. XXIV, No. 296, pp. 436-441 (Oct. 1952).124Merkelo, J. and Hall, R.D., "Broad-Band Thin-Film Signal Sampler," IEEE Journal of Solid-State Circuits, IEEE, vol. SC-7, No. 1, pp. 50-54 (Feb. 1972).125Merlo, U. et al., "Amplitude Scintillation Cycles in a Sirio Satellite-Earth Link," Electronics Letters, IEE, vol. 21, No. 23, pp. 1094-1096 (Nov. 7, 1985).126Miki, S. and Nagahama, R., Modulation System II, Common Edition 7, Kyoritsu Publishing Co., Ltd., pp. 146-149 (Apr. 30, 1956). (Partial Translation of Doc. AQ51).127Miki, S. and Nagahama, R., Modulation System II, Common Edition 7, Kyoritsu Publishing Co., Ltd., pp. 146-154 (Apr. 30, 1956).128Morris, D., "Radio-holographic reflector measurement of the 30-m millimeter radio telescope at 22 Ghz with a cosmic signal source," Astronomy and Astrophysics, Springer-Verlag, vol. 203, No. 2, pp. 399-406 (Sep. (11), 1988).129Moulsley, T.J. et al., "The efficient acquisition and processing of propagation statistics," Journal of the Institution of Electronic and Radio Engineers, IERE, vol. 55, No. 3, pp. 97-103 (Mar. 1985).130Ndzi, D. et al., "Wide-Band Statistical Characterization of an Over-the-Sea Experimental Transhorizon Link," IEE Colloquium on Radio Communications at Microwave and Millimetre Wave Frequencies, IEE, pp. 1/1-1/6 (Dec. 16, 1996).131Ndzi, D. et al., "Wideband Statistics of Signal Levels and Doppler Spread on an Over-The-Sea Transhorizon Link," IEE Colloquium on Propagation Characteristics and Related System Technqiues for Beyond Line-of-Sight Radio, IEE, pp. 9/1-9/6 (Nov. 24, 1997).132Ohara, H. et al., "First monolithic PCM filter cuts cost of telecomm systems," Electronic Design, Hayden Publishing Company, vol. 27, No. 8, pp. 130-135 (Apr. 12, 1979).133Oppenheim, A.V. and Schafer, R.W., Digital Signal Processing, Prentice-Hall, pp. vii-x, 6-35, 45-78, 87-121 and 136-165 (1975).134Oppenheim, A.V. et al., Signals and Systems, Prentice-Hall, pp. 527-531 and 561-562 (1983).135Ortgies, G., "Experimental Parameters Affecting Amplitude Scintillation Measurements on Satellite Links," Electronics Letters, IEE, vol. 21, No. 17, pp. 771-772 (Aug. 15, 1985).136P�rssinen et al., "A 2-GHz Subharmonic Sampler for Signal Downconversion," IEEE Transactions on Microwave Theory and Techniques, IEEE, vol. 45, No. 12, 7 pages (Dec. 1997).137Partial Translation of Japanese Patent Publication No. 58-7903, 3 pages.138Patel, M. et al., "Bandpass Sampling for Software Radio Receivers, and the Effect of Oversampling on Aperture Jitter," VTC 2002, IEEE, pp. 1901-1905 (2002).139Peeters, G. et al., "Evaluation of Statistical Models for Clear-Air Scintillation Prediction Using Olympus Satellite Measurements," International Journal of Satellite Communications, John Wiley and Sons, vol. 15, No. 2, pp. 73-88 (Mar.-Apr. 1997).140Perrey, A.G. and Schoenwetter, H.K., NBS Technical Note 1121: A Schottky Diode Bridge Sampling Gate, U.S. Dept. of Commerce, pp. 1-14 (May 1980).141Poulton, K. et al., "A 1-Ghz 6-bit ADC System," IEEE Journal of Solid-State Circuits, IEEE, vol. SC-22, No. 6, pp. 962-969 (Dec. 1987).142Press Release, "CLI and ParkerVision Bring Enhanced Ease-of-Use to Videoconferencing," CLI/Parkervision, 2 pages (Jan. 20, 1997).143Press Release, "Joint Marketing Agreement Offers New Automated Production Solution," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Apr. 13, 1999).144Press Release, "Laboratory Tests Verify Parkervision Wireless Technology," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Mar. 3, 1998).145Press Release, "NEC and Parkervision Make Distance Learning Closer," NEC America, 2 pages (Jun. 18, 1997).146Press Release, "Parkervision �DIRECT2DATA� Introduced in Response to Market Demand," Parkervision Marketing and Manufacturing Headquarters, 3 pages (Jul. 9, 1998).147Press Release, "Parkervision Adds Two New Directors," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Mar. 5, 1999).148Press Release, "ParkerVision and IBM Join Forces to Create Wireless Computer Peripherals," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Jul. 23, 1997).149Press Release, "ParkerVision Announces Breakthrough in Wireless Radio Frequency Technology," Parkervision Marketing and Manufacturing Headquarters, 3 pages (Dec. 10, 1997).150Press Release, "Parkervision Announces Existing Agreement with IBM Terminates�Company Continues with Strategic Focus Announced in December," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Jan. 27, 1998).151Press Release, "Parkervision Announces First Quarter Financial Results," Parkervision Marketing and Manufacturing Headquarters, 3 pages (May 4, 1998).152Press Release, "Parkervision Announces Fourth Quarter and Year End Financial Results," Parkervision Marketing and Manufacturing Headquarters, 3 pages (Mar. 5, 1999).153Press Release, "Parkervision Announces New Camera Control Technology," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Oct. 25, 1995).154Press Release, "Parkervision Announces Second Quarter and Six Month Financial Results," Parkervision Marketing and Manufacturing Headquarters, 4 pages (Jul. 30, 1998).155Press Release, "Parkervision Announces Third Quarter and Nine Month Financial Results," Parkervision Marketing and Manufacturing Headquarters, 3 pages (Oct. 30, 1998).156Press Release, "Parkervision Awarded Editors' Pick of Show for NAB 98," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Apr. 15, 1998).157Press Release, "Parkervision Expands Senior Management Team," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Jul. 29, 1998).158Press Release, "ParkerVision Files Patents for its Research of Wireless Technology," Parkervision Marketing and Manufacturing Headquarters, 1 page (Mar. 28, 1996).159Press Release, "Parkervision Granted New Patent," Parkervision Marketing and Manufacturing Headquarters, 1 page (Jul. 21, 1995).160Press Release, "Parkervision National Sales Manager Next President of USDLA," Parkervision Marketing and Manufacturing Headquarters, 1 page (Jul. 6, 1995).161Press Release, "Parkervision Supplies JPL with Robotic Cameras, Cameraman Shot Director for Mars Mission," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Jul. 8, 1997).162Press Release, "Parkervision Wins Top 100 Product Districts' Choice Award," Parkervision Marketing and Manufacturing Headquarters, 1 page (Jun. 29, 1995).163Press Release, "Parkervision, Inc. Announces Appointments to its National Sales Force," Lippert/Heilshorn and Associates, 2 pages (Jun. 17, 1994).164Press Release, "Parkervision, Inc. Announces Completion of VTEL/Parkervision Joint Product Line", Parkervision Marketing and Manufacturing Headquarters, 2 pages (Oct. 30, 1995).165Press Release, "Parkervision, Inc. Announces First Quarter Financial Results," Lippert/Heilshorn and Associates, 2 pages (Apr. 26, 1994).166Press Release, "Parkervision, Inc. Announces First Quarter Financial Results," Lippert/Heilshorn and Associates, 3 pages (Apr. 28, 1995).167Press Release, "Parkervision, Inc. Announces First Quarter Financial Results," Parkervision Marketing and Manufacturing Headquarters, 3 pages (Apr. 29, 1997).168Press Release, "Parkervision, Inc. Announces First Quarter Financial Results," Parkervision Marketing and Manufacturing Headquarters, 3 pages (Apr. 30, 1996).169Press Release, "Parkervision, Inc. Announces First Significant Dealer Sale of Its Cameraman� System II," Lippert/Heilshorn and Associates, 2 pages (Nov. 7, 1994).170Press Release, "Parkervision, Inc. Announces First Significant Sale of Its Cameraman� Three-Chip System," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Apr. 12, 1996).171Press Release, "Parkervision, Inc. Announces Fiscal 1993 Results," Lippert/Heilshorn and Associates, 2 pages (Apr. 6, 1994).172Press Release, "Parkervision, Inc. Announces Fourth Quarter and Year End Financial Results," Parkervision Marketing and Manufacturing Headquarters, 3 pages (Mar. 5, 1998).173Press Release, "Parkervision, Inc. Announces Fourth Quarter and Year End Results," Lippert/Heilshorn and Associates, 2 pages (Mar. 1, 1995).174Press Release, "ParkerVision, Inc. Announces Fourth Quarter and Year End Results," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Feb. 27, 1996).175Press Release, "Parkervision, Inc. Announces Fourth Quarter and Year End Results," Parkervision Marketing and Manufacturing Headquarters, 3 pages (Feb. 27, 1997).176Press Release, "Parkervision, Inc. Announces Joint Product Developments with VTEL," Lippert/Heilshorn and Associates, 2 pages (Mar. 21, 1995).177Press Release, "Parkervision, Inc. Announces New Cameraman System II� At Infocomm Trade Show," Lippert/Heilshorn and Associates, 3 pages (Jun. 9, 1994).178Press Release, "Parkervision, Inc. Announces Private Placement of 800,000 Shares," Parkervision Marketing and Manufacturing Headquarters, 1 page (Apr. 15, 1996).179Press Release, "Parkervision, Inc. Announces Private Placement of 990,000 Shares," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Sep. 8, 1997).180Press Release, "Parkervision, Inc. Announces Purchase Commitment From VTEL Corporation," Parkervision Marketing and Manufacturing Headquarters, 1 page (Feb. 26, 1996).181Press Release, "Parkervision, Inc. Announces Second Quarter and Six Months Financial Results," Lippert/Heilshorn and Associates, 3 pages (Aug. 9, 1994).182Press Release, "Parkervision, Inc. Announces Second Quarter and Six Months Financial Results," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Jul. 31, 1995).183Press Release, "Parkervision, Inc. Announces Second Quarter and Six Months Financial Results," Parkervision Marketing and Manufacturing Headquarters, 3 pages (Aug. 1, 1996).184Press Release, "ParkerVision, Inc. Announces Second Quarter and Six Months Financial Results," Parkervision Marketing and Manufacturing Headquarters, 3 pages (Jul. 31, 1997).185Press Release, "Parkervision, Inc. Announces the Appointment of Joseph F. Skovron to the Position of Vice President, Licensing�Wireless Technologies," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Jan. 9, 1998).186Press Release, "Parkervision, Inc. Announces the Appointment of Michael Baker to the New Position of National Sales Manager," Lippert/Heilshorn and Associates, 1 page (Apr. 7, 1994).187Press Release, "Parkervision, Inc. Announces the Retirement of William H. Fletcher, Chief Financial Officer," Lippert/Heilshorn and Associates, 1 page (May 11, 1994).188Press Release, "Parkervision, Inc. Announces Third Quarter and Nine Months Financial Results," Lippert/Heilshorn and Associates, 3 pages (Oct. 28, 1994).189Press Release, "Parkervision, Inc. Announces Third Quarter and Nine Months Financial Results," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Oct. 29, 1996).190Press Release, "Parkervision, Inc. Announces Third Quarter and Nine Months Financial Results," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Oct. 30, 1995).191Press Release, "Parkervision, Inc. Announces Third Quarter Financial Results," Parkervision Marketing and Manufacturing Headquarters, 3 pages (Oct. 30, 1997).192Press Release, "Parkervision, Inc. Expands Its Cameraman System II Product Line," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Sep. 22, 1995).193Press Release, "ParkerVision, Inc. Expands its Product Line," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Mar. 7, 1996).194Press Release, "Parkervision, Inc. Introduces New Product Line For Studio Production Market," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Apr. 15, 1996).195Press Release, "Parkervision's Cameraman Personal Locator Camera System Wins Telecon XV Award," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Nov. 1, 1995).196Press Release, "Parkervision's Cameraman Well-Received by Distance Learning Market," Lippert/Heilshorn and Associates, 2 pages (Apr. 8, 1994).197Press Release, "ParkerVision's New Studio Product Wins Award," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Jun. 5, 1996).198Press Release, "PictureTel and ParkerVision Sign Reseller Agreement," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Oct. 30, 1996).199Press Release, "Questar Infocomm, Inc. Invests $5 Million in Parkervision Common Stock," Parkervision Marketing and Manufacturing Headquarters, 3 pages (Dec. 2, 1998).200Press Release, "Wal-Mart Chooses Parkervision for Broadcast Production," Parkervision Marketing and Manufacturing Headquarters, 2 pages (Oct. 24, 1997).201Rabiner, L.R. and Gold, B., Theory and Application of Digital Signal Processing, Prentice-Hall, Inc., pp. xiii-xii and 40-46 (1975).202Razavi, B., A 900-MHz/1.8-Ghz CMOS Transmitter for Dual-Band Applications, Symposium on VLSI Circuits Digest of Technical Papers, IEEE, pp. 128-131 (1998).203Razavi, B., RF Microelectronics, Prentice-Hall, pp. 147-149 (1998).204Reeves, R.J.D., "The Recording and Collocation of Waveforms (Part 1)," Electronic Engineering, Morgan Brothers Limited, vol. 31, No. 373, pp. 130-137 (Mar. 1959).205Reeves, R.J.D., "The Recording and Collocation of Waveforms (Part 2)," Electronic Engineering, Morgan Brothers Limited, vol. 31, No. 374, pp. 204-212 (Apr. 1959).206Rein, H.M. and Zahn, M., "Subnanosecond-Pulse Generator with Variable Pulsewidth Using Avalanche Transistors," Electronics Letters, IEE, vol. 11, No. 1, pp. 21-23 (Jan. 9, 1975).207Riad, S.M. and Nahman, N.S., "Modeling of the Feed-through Wideband (DC to 12.4 Ghz) Sampling-Head," IEEE MTT-S International Microwave Symposium Digest, IEEE, pp. 267-269 (Jun. 27-29, 1978).208Ritter, G.M., "SDA, A New Solution for Transceivers," 16th European Microwave Conference, Microwave Exhibitions and Publishers, pp. 729-733 (Sep. 8, 1986).209Rizzoli, V. et al., "Computer-Aided Noise Analysis of MESFET and HEMT Mixers," IEEE Transactions on Microwave Theory and Techniques, IEEE, vol. 37, No. 9, pp. 1401-1410 (Sep. 1989).210Rowe, H.E., Signals and Noise in Communication Systems, D. Van Nostrand Company, Inc., Princeton, New Jersey, including, for example, Chapter V, Pulse Modulation Systems (1965).211R�cker, F. and Dintelman, F., "Effect of Antenna Size on OTS Signal Scintillations and Their Seasonal Dependence," Electronics Letters, IEE, vol. 19, No. 24, pp. 1032-1034 (Nov. 24, 1983).212Rudell, J.C. et al., "A 1.9-Ghz Wide-Band IF Double Conversion CMOS Receiver for Cordless Telephone Applications," IEEE Journal of Solid-State Circuits, IEEE, vol. 32, No. 12, pp. 2071-2088 (Dec. 1997).213Russell, R. and Hoare, L., "Millimeter Wave Phase Locked Oscillators," Military Microwaves '78 Conference Proceedings, Microwave Exhibitions and Publishers, pp. 238-242 (Oct. 25-27, 1978).214Sabel, L.P., "A DSP Implementation of a Robust Flexible Receiver/Demultiplexer for Broadcast Data Satellite Communications," The Institution of Engineers Australia Communications Conference, Institution of Engineers, Australia, pp. 218-223 (Oct. 16-18, 1990).215Salous, S., "IF digital generation of FMCW waveforms for wideband channel characterization," IEE Proceedings-I, IEE, vol. 139, No. 3, pp. 281-288 (Jun. 1992).216Sasikumar, M. et al., "Active Compensation in the Switched-Capacitor Biquad," Proceedings of the IEEE, IEEE, vol. 71, No. 8, pp. 1008-1009 (Aug. 1983).217Saul, P.H., "A GaAs MESFET Sample and Hold Switch," Fifth European Solid State Circuits Conference�ESSCIRC 79, IEE, pp. 5-7 (1979).218Shen, D. et al., "A 900 MHZ Integrated Discrete-Time Filtering RF Front-End," IEEE International Solid State Circuits Conference, IEEE, vol. 39, pp. 54-55 and 417 (Feb. 1996).219Shen, D.H. et al., "A 900-MHZ RF Front-End with Integrated Discrete-Time Filtering," IEEE Journal of Solid-State Circuits, IEEE Solid-State Circuits Council, vol. 31, No. 12, pp. 1945-1954 (Dec. 1996).220Shen, X. and Tawfik, A.N., "Dynamic Behavior of Radio Channels Due to Trans-Horizon Propagation Mechanisms," Electronics Letters, IEE, vol. 29, No. 17, pp. 1582-1583 (Aug. 19, 1993).221Shen, X. and Vilar, E., "Path loss statistics and mechanisms of transhorizon propagation over a sea path," Electronics Letters, IEE, vol. 32, No. 3, pp. 259-261 (Feb. 1, 1996).222Shen, X. et al., "Modeling Enhanced Spherical Diffraction and Troposcattering on a Transhorizon Path with aid of the parabolic Equation and Ray Tracing Methods," IEE Colloquium on Common modeling techniques for electromagnetic wave and acoustic wave propagation, IEE, pp. 4/1-4/7 (Mar. 8, 1996).223Shen, X.D. and Vilar, E., "Anomalous transhorizon propagation and meteorological processes of a multilink path," Radio Science, American Geophysical Union, vol. 30, No. 5, pp. 1467-1479 (Sep.-Oct. 1995).224Simoni, A. et al., "A Digital Camera for Machine Vision," 20th International Conference on Industrial Electronics, Control and Instrumentation, IEEE, pp. 879-883 (Sep. 1994).225Spillard, C. et al., "X-Band Tropospheric Transhorizon Propagation Under Differing Meteorological Conditions," Sixth International Conference on Antennas and Propagation (ICAP 89) Part 2: Propagation, IEE, pp. 451-455 (Apr. 4-7, 1989).226Stafford, K.R. et al., "A Complete Monolithic Sample/Hold Amplifier," IEEE Journal of Solid-State Circuits, IEEE, vol. SC-9, No. 6, pp. 381-387 (Dec. 1974).227Staruk, W. Jr. et al., "Pushing HF Data Rates," Defense Electronics, EW Communications, vol. 17, No. 5, pp. 211, 213, 215, 217, 220 and 222 (May 1985).228Stephenson, A.G., "Digitizing multiple RF signals requires an optimum sampling rate," Electronics, McGraw-Hill, pp. 106-110 (Mar. 27, 1972).229Stewart, R.W. and Pfann, E., "Oversampling and sigma-delta strategies for data conversion," Electronics & Communication Engineering Journal, IEEE, pp. 37-47 (Feb. 1998).230Sugarman, R., "Sampling Oscilloscope for Statistically Varying Pulses," The Review of Scientific Instruments, American Institute of Physics, vol. 28, No. 11, pp. 933-938 (Nov. 1957).231Sylvain, M., "Experimental probing of multipath microwave channels," Radio Science, American Geophysical Union, vol. 24, No. 2, pp. 160-178 (Mar.-Apr. 1989).232Takano, T., "NOVEL GaAs Pet Phase Detector Operable to Ka Band," IEEE MT-S Digest, IEEE, pp. 381-383 (1984).233Tan, M.A., "Biquadratic Transconductance Switched-Capacitor Filters," IEEE Transactions on Circuits and Systems�I: Fundamental Theory and Applications, IEEE Circuits and Systems Society, vol. 40, No. 4, pp. 272-275 (Apr. 1993).234Tanaka, K. et al., "Single Chip Multisystem AM Stereo Decoder IC," IEEE Transactions on Consumer Electronics, IEEE Consumer Electronics Society, vol. CE-32, No. 3, pp. 482-496 (Aug. 1986).235Tawfik, A.N. and Vilar, E., "Correlation of Transhorizon Signal Level Strength with Localized Surface Meteorological Parameters," Eighth International Conference on Antennas and Propagation, Electronics Divison of the IEE, pp. 335-339 (Mar. 30-Apr. 2, 1993).236Tawfik, A.N. and Vilar, E., "Dynamic Structure of a Transhorizon Signal at X-band Over a Sea Path," Sixth International Conference on Antennas and Propagation (ICAP 89) Part 2: Propagation, IEE, pp. 446-450 (Apr. 4-7, 1989).237Tawfik, A.N. and Vilar, E., "Statistics of Duration and Intensity of Path Loss in a Microwave Transhorizon Sea-Path," Electronics Letters, IEE, vol. 26, No. 7, pp. 474-476 (Mar. 29, 1990).238Tawfik, A.N. and Vilar, E., "X-Band Transhorizon Measurements of CW Transmissions Over the Sea�Part 1: Path Loss, Duration of Events, and Their Modeling," IEEE Transactions on Antennas and Propagation, IEEE Antennas and Propagation Society, vol. 41, No. 11, pp. 1491-1500 (Nov. 1993).239Tawfik, A.N., "Amplitude, Duration and Predictability of Long Hop Trans-Horizon X-band Signals Over the Sea," Electronics Letters, IEE, vol. 28, No. 6, pp. 571-572 (Mar. 12, 1992).240Tayloe, D., "A Low-noise, High-performance Zero IF Quadrature Detector/Preamplifier," RF Design, pp. 58, 60, 62 and 69 (Mar. 2003).241Temes, G.C. and Tsividis, T., "The Special Section on Switched-Capacitor Circuits," Proceedings of the IEEE, IEEE, vol. 71, No. 8, pp. 915-916 (Aug. 1983).242Thomas, G.B., Calculus and Analytic Geometry, Third Edition, Addison-Wesley Publishing, pp. 119-133 (1960).243Tomassetti, Q., "An Unusual Microwave Mixer," 16th European Microwave Conference, Microwave Exhibitions and Publishers, pp. 754-759 (Sep. 8-12, 1986).244Tortoli, P. et al., "Bidirectional Doppler Signal Analysis Based on a Single RF Sampling Channel," IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Ultrasonics, Ferroelectrics, and Frequency Control Society, vol. 41, No. 1, pp. 1-3 (Jan. 1984).245Translation of DE Patent No. 35 41 031 A1, 22 pages.246Translation of EP Patent No. 0 732 803 A1, 9 pages.247Translation of German Patent No. DE 197 35 798 C1, 8 pages.248Translation of Japanese Patent Publication No. 47-2314, 3 pages.249Translation of Specification and Claims of FR Patent No. 2245130, 3 pages.250Tsividis, Y. and Antognetti, P. (Ed.), Design of MOS VLSI Circuits for Telecommunications, Prentice-Hall, p. 304 (1985).251Tsividis, Y., "Principles of Operation and Analysis of Switched-Capacitor Circuits," Proceedings of the IEEE, IEEE, vol. 71, No. 8, pp. 926-940 (Aug. 1983).252Tsurumi, H. and Maeda, T., "Design Study on a Direct Conversion Receiver Front-End for 280 MHZ, 900 MHZ, and 2.6 Ghz Band Radio Communication Systems," 41st IEEE Vehicular Technology Conference, IEEE Vehicular Technology Society, pp. 457-462 (May 19-22, 1991).253Valdmanis, J. A. et al., "Picosecond and Subpicosend Optoelectronics for Measurements of Future High Speed Electronic Devices," IEDM Technical Digest, IEEE, pp. 597-600 (Dec. 5-7, 1983).254van de Kamp, M.M.J.L., "Asymmetric signal level distribution due to tropospheric scintillation," Electronics Letters, IEE, vol. 34, No. 11, pp. 1145-1146 (May 28, 1998).255Vasseur, H. and Vanhoenacker, D., "Characterization of tropospheric turbulent layers from radiosonde data," Electronics Letters, IEE, vol. 34, No. 4, pp. 318-319 (Feb. 19, 1998).256Verdone, R., "Outage Probability Analysis for Short-Range Communication Systems at 60 Ghz in ATT Urban Environments," IEEE Transactions on Vehicular Technology, IEEE Vehicular Technology Society, vol. 46, No. 4, pp. 1027-1039 (Nov. 1997).257Vierira-Ribeiro, S.A., Single-IF DECT Receiver Architecture using a Quadrature Sub-Sampling Band-Pass Sigma-Delta Modulator, Thesis for Degree of Master's of Engineering, Carleton University, UMI Dissertation Services, pp. 1-180 (Apr. 1995).258Vilar, E. and Burgue�o, A., "Analysis and Modeling of Time Intervals Between Rain Rate Exceedances in the Context of Fade Dynamics," IEEE Transactions on Communications, IEEE Communications Society, vol. 39, No. 9, pp. 1306-1312 (Sep. 1991).259Vilar, E. and Faulkner, N.D., "Phase Noise and Frequency Stability Measurments. Numerical Techniques and Limitations," Electronics Division Colloquium on Low Noise Oscillators and Synthesizer, IEE, 5 pages (Jan. 23, 1986).260Vilar, E. and Haddon, J., "Measurement and Modeling of Scintillation Intensity to Estimate Turbulence Parameters in an Earth-Space Path," IEEE Transactions on Antennas and Propagation, IEEE Antennas and Propagation Society, vol. AP-32, No. 4, pp. 340-346 (Apr. 1984).261Vilar, E. and Haddon, J., "Scintillation Modeling and Measurement�A Tool for Remote-Sensing Slant Paths," AGARD Conference Proceedings No. 332: Propagation Aspects of Frequency Sharing, Interference and System Diversity, AGARD, pp. 27-1 -27-13 (Oct. 18-22, 1982).262Vilar, E. and Larsen, J.R., "Elevation Dependence of Amplitude Scintillations on Low Elevation Earth Space Paths," Sixth International Conference on Antennas and Propagation (ICAP 89) Part 2: Propagation, IEE, pp. 150-154 (Apr. 4-7, 1989).263Vilar, E. and Matthews, P.A., "Amplitude Dependence of Frequency in Oscillators," Electronics Letters, IEE, vol. 8, No. 20, pp. 509-511 (Oct. 5, 1972).264Vilar, E. and Matthews, P.A., "Importance of Amplitude Scintillations in Millimetric Radio Links," Proceedings of the 4th European Microwave Conference, Microwave Exhibitions and Publishers, pp. 202-206 (Sep. 10-13, 1974).265Vilar, E. and Matthews, P.A., "Measurement of Phase Fluctuations on Millimetric Radiowave Propagation," Electronics Letters, IEE, vol. 7, No. 18, pp. 566-568 (Sep. 9, 1971).266Vilar, E. and Matthews, P.A., "Summary of Scintillation Observations in a 36 Ghz Link Across London," International Conference on Antennas and Propagation Part 2: Propagation, IEE, pp. 36-40 (Nov. 28-30, 1978).267Vilar, E. and Moulsley, T.J., "Comment and Reply: Probability Density Function of Amplitude Scintillations," Electronics Letters, IEE, vol. 21, No. 14, pp. 620-622 (Jul. 4, 1985).268Vilar, E. and Senin, S., "Propagation phase noise identified using 40 Ghz satellite downlink," Electronics Letters, IEE, vol. 33, No. 22, pp. 1901-1902 (Oct. 23, 1997).269Vilar, E. and Smith, H., "A Theoretical and Experimental Study of Angular Scintillations in Earth Space Paths," IEEE Transactions on Antennas and Propagation, IEEE, vol. AP-34, No. 1, pp. 2-10 (Jan. 1986).270Vilar, E. and Wan, K.W., "Narrow and Wide Band Estimates of Field Strength for Indoor Communications in the Millimetre Band," Electronics Division Colloquium on Radiocommunications in the Range 30-60 Ghz, IEE, pp. 5/1-5/8 (Jan. 17, 1991).271Vilar, E. et al., "A Comprehensive/Selective MM-Wave Satellite Downlink Experiment on Fade Dynamics," Tenth International Conference on Antennas and Propagation, Electronics Division of the IEE, pp. 2.98-2.101 (Apr. 14-17, 1997).272Vilar, E. et al., "A System to Measure LOS Atmospheric Transmittance at 19 Ghz," AGARD Conference Proceedings No. 346: Characteristics of the Lower Atmosphere Influencing Radio Wave Propagation, AGARD, pp. 8-1 -8-16 (Oct. 4-7, 1983).273Vilar, E. et al., "A Wide Band Transhorizon Experiment at 11.6 Ghz," Eighth International Conference on Antennas and Propagation, Electronics Division of the IEE, pp. 441-445 (Mar. 30-Apr. 2, 1993).274Vilar, E. et al., "An experimental mm-wave receiver system for measuring phase noise due to atmospheric turbulence," Proceedings of the 25th European Microwave Conference, Nexus House, pp. 114-119 (1995).275Vilar, E. et al., "Angle of Arrival Fluctuations in High and Low Elevation Earth Space Paths," Fourth International Conference on Antennas and Propagation (ICAP 85), Electronics Division of the IEE, pp. 83-88 (Apr. 16-19, 1985).276Vilar, E. et al., "CERS*. Millimetre-Wave Beacon Package and Related Payload Doppler Correction Strategies," Electronics Division Colloquium on CERS�Communications Engineering Research Satellite, IEE, pp. 10/1-10/10 (Apr. 10, 1984).277Vilar, E. et al., "Comparison of Rainfall Rate Duration Distributions for ILE-IFE and Barcelona," Electronics Letters, IEE, vol. 28, No. 20, pp. 1922-1924 (Sep. 24, 1992).278Vilar, E. et al., "Experimental System and Measurements of Transhorizon Signal Levels at 11 Ghz," 18th European Microwave Conference, Microwave Exhibitions and Publishers Ltd., pp. 429-435 (Sep. 12-15, 1988).279Vilar, E. et al., "Scattering and Extinction: Dependence Upon Raindrop Size Distribution in Temperate (Barcelona) and Tropical (Belem) Regions," Tenth International Conference on Antennas and Propagation, Electronics Division of the IEE, pp. 2.230-2.233 (Apr. 14-17, 1997).280Vilar, E. et al., "Wideband Characterization of Scattering Channels," Tenth International Conference on Antennas and Propagation, Electronics Division of the IEE, pp. 2.353-2.358 (Apr. 14-17, 1997).281Vilar, E., "Antennas and Propagation: A Telecommunications Systems Subject," Electronics Division Colloquium on Teaching Antennas and Propagation to Undergraduates, IEE, pp. 7/1-7/6 (Mar. 8, 1988).282Vilar, E., "Depolarization and Field Transmittances in Indoor Communications," Electronics Letters, IEE, vol. 27, No. 9, pp. 732-733 (Apr. 25, 1991).283Vilar, E., "Some Limitations on Digital Transmission Through Turbulent Atmosphere," International Conference on Satellite Communication Systems Technology, Electronics Division of the IEE, pp. 169-187 (Apr. 7-10, 1975).284Vollmer, A., "Complete GPS Receiver Fits on Two Chips," Electronic Design, Penton Publishing, pp. 50, 52, 54 and 56 (Jul. 6, 1998).285Voltage and Time Resolution in Digitizing Oscilloscopes: Application Note 348, Hewlett Packard, pp. 1-11 (Nov. 1986).286Wan, K.W. et al., "A Novel Approach to the Simultaneous Measurement of Phone and Amplitude Noises in Oscillator," Proceedings of the 19th European Microwave Conference, Microwave Exhibitions and Publishers Ltd., pp. 809-813 (Sep. 4-7, 1989).287Wan, K.W. et al., "Extended Variances and Autoregressive/Moving Average Algorithm for the Measurement and Synthesis of Oscillator Phase Noise," Proceedings of the 43rd Annual Symposium on Frequency Control, IEEE, pp. 331-335 (1989).288Wan, K.W. et al., "Wideband Transhorizon Channel Sounder at 11 Ghz," Electronics Division Colloquium on High Bit Rate UHF/SHF Channel Sounders�Technology and Measurement, IEE, pp. 3/1-3/5 (Dec. 3, 1993).289Wang, H., "A 1-V Multigigahertz RF Mixer Core in 0.5-μm CMOS," IEEE Journal of Solid-State Circuits, IEEE Solid-State Circuits Society, vol. 33, No. 12, pp. 2265-2267 (Dec. 1998).290Watson, A.W.D. et al., "Digital Conversion and Signal Processing for High Performance Communications Receivers," Digital Processing of Signals in Communications, Institution of Electronic and Radio Engineers, pp. 367-373 (Apr. 22nd-26th, 1985).291Weast, R.C. et al. (Ed.), Handbook of Mathematical Tables, Second Edition, The Chemical Rubber Co., pp. 480-485 (1964).292Wiley, R.G., "Approximate FM Demodulation Using Zero Crossings," IEEE Transactions on Communications, IEEE, vol. COM-29, No. 7, pp. 1061-1065 (Jul. 1981).293Worthman, W., "Convergence . . . Again," RF Design, Primedia, p. 102 (Mar. 1999).294Young, I.A. and Hodges, D.A., "MOS Switched-Capacitor Analog Sampled-Data Direct-Form Recursive Filters," IEEE Journal of Solid-State Circuits, IEEE, vol. SC-14, No. 6, pp. 1020-1033 (Dec. 1979). Referenziert von Zitiert von PatentEingetragen Ver�ffentlichungsdatum Antragsteller TitelUS6813485 *20. Apr. 20012. Nov. 2004Parkervision, Inc.Method and system for down-converting and up-converting an electromagnetic signal, and transforms for sameUS685369014. M�rz 20008. Febr. 2005Parkervision, Inc.Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodimentsUS7039382 *15. Mai 20012. Mai 2006Broadcom CorporationDC offset calibration for a radio transceiver mixerUS7047023 *3. Dez. 200116. Mai 2006Sirf Technology, Inc.GPS RF front end IC with frequency plan for improved integrabilityUS7110444 *4. Aug. 200019. Sept. 2006Parkervision, Inc.Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementationsUS7340233 *29. M�rz 20044. M�rz 2008Intel CorporationIntegrated circuit and methods for third sub harmonic up conversion and down conversion of signalsUS757667127. Febr. 200718. Aug. 2009Intrinsix CorporationMismatch-shaping dynamic element matching systems and methods for multi-bit sigma-delta data convertersUS75963621. Mai 200629. Sept. 2009Broadcom CorporationDC offset calibration for a radio transceiver mixerUS786018919. Aug. 200528. Dez. 2010Intrinsix CorporationHybrid heterodyne transmitters and receiversUS801931220. Aug. 200913. Sept. 2011Broadcom CorporationDC offset calibration for a radio transceiver mixerUS837976017. Nov. 201019. Febr. 2013Intrinsix CorporationHybrid heterodyne transmitters and receiversUS838586512. Aug. 200826. Febr. 2013Sony Mobile Communications AbEvolved EDGE receiver* Vom Pr�fer zitiertKlassifizierungen US-Klassifikation455/323, 375/349, 455/302, 455/285Internationale KlassifikationH03D7/00 UnternehmensklassifikationH03D7/00 Europ�ische KlassifikationH03D7/00DrehenOriginalbildGoogle-Startseite - Sitemap - USPTO-Bulk-Downloads - Datenschutzerkl�rung - Nutzungsbedingungen - �ber Google Patente - Feedback gebenDaten bereitgestellt von IFI CLAIMS Patent Services.© 2012 Google