WO2001089078A3 - Apparatus, system, and method for down-converting and up-converting electromagnetic signals - Google Patents

Apparatus, system, and method for down-converting and up-converting electromagnetic signals

Info

Publication number
WO2001089078A3
WO2001089078A3 PCT/US2001/015555 US0115555W WO2001089078A3 WO 2001089078 A3 WO2001089078 A3 WO 2001089078A3 US 0115555 W US0115555 W US 0115555W WO 2001089078 A3 WO2001089078 A3 WO 2001089078A3
Authority
WO
Grant status
Application
Patent type
Prior art keywords
signal
converting
harmonic
invention
oscillating
Prior art date
Application number
PCT/US2001/015555
Other languages
French (fr)
Other versions
WO2001089078A8 (en )
WO2001089078A2 (en )
Inventor
David F Sorrells
Michael J Bultman
Robert W Cook
Richard C Looke
Charley D Moses Jr
Gregory S Rawlins
Michael W Rawlins
Original Assignee
Parkervision Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/12Transference of modulation from one carrier to another, e.g. frequency-changing by means of semiconductor devices having more than two electrodes
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14Balanced arrangements
    • H03D7/1425Balanced arrangements with transistors
    • H03D7/1441Balanced arrangements with transistors using field-effect transistors
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14Balanced arrangements
    • H03D7/1425Balanced arrangements with transistors
    • H03D7/1458Double balanced arrangements, i.e. where both input signals are differential
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14Balanced arrangements
    • H03D7/1425Balanced arrangements with transistors
    • H03D7/1466Passive mixer arrangements
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14Balanced arrangements
    • H03D7/1425Balanced arrangements with transistors
    • H03D7/1483Balanced arrangements with transistors comprising components for selecting a particular frequency component of the output

Abstract

Methods, systems, and apparatuses for down-converting and up-converting an electromagnetic signal. In embodiments, the invention operates by receiving an electromagnetic signal and recursively operating on approximate half cycles of a carrier signal. The recursive operations can be performed at a sub-harmonic rate of the carrier signal. The invention accumulates the results of the recursive operations and uses the accumulated results to form a down-converted signal. In embodiments, up-conversion is accomplished by controlling a switch with an oscillating signal, the frequency of the oscillating signal being selected as a sub-harmonic of the desired output frequency. When the invention is being used in the frequency modulation or phase modulation implementations, the oscillating signal is modulated by an information signal before it causes the switch to gate a bias signal. The output of the switch is filtered, and the desired harmonic is output.
PCT/US2001/015555 2000-05-16 2001-05-16 Apparatus, system, and method for down-converting and up-converting electromagnetic signals WO2001089078A8 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US20479600 true 2000-05-16 2000-05-16
US60/204,796 2000-05-16
US21336300 true 2000-06-21 2000-06-21
US60/213,363 2000-06-21
US27204301 true 2001-03-01 2001-03-01
US60/272,043 2001-03-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20010977965 EP1297618A2 (en) 2000-05-16 2001-05-16 Apparatus, system, and method for down-converting and up-converting electromagnetic signals

Publications (3)

Publication Number Publication Date
WO2001089078A2 true WO2001089078A2 (en) 2001-11-22
WO2001089078A3 true true WO2001089078A3 (en) 2003-01-30
WO2001089078A8 true WO2001089078A8 (en) 2003-03-13

Family

ID=27394707

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/015555 WO2001089078A8 (en) 2000-05-16 2001-05-16 Apparatus, system, and method for down-converting and up-converting electromagnetic signals

Country Status (2)

Country Link
EP (1) EP1297618A2 (en)
WO (1) WO2001089078A8 (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4888557A (en) * 1989-04-10 1989-12-19 General Electric Company Digital subharmonic sampling down-converter
EP0643477A2 (en) * 1993-09-10 1995-03-15 Nokia Mobile Phones Ltd. Demodulation of an IF-signal by a sigma-delta converter
US5454007A (en) * 1993-09-24 1995-09-26 Rockwell International Corporation Arrangement for and method of concurrent quadrature downconversion input sampling of a bandpass signal
WO1996002977A1 (en) * 1994-07-13 1996-02-01 Stanford Telecommunications, Inc. Method and apparatus for alias-driven frequency downconversion (mixing)
US5564097A (en) * 1994-05-26 1996-10-08 Rockwell International Spread intermediate frequency radio receiver with adaptive spurious rejection
US5640698A (en) * 1995-06-06 1997-06-17 Stanford University Radio frequency signal reception using frequency shifting by discrete-time sub-sampling down-conversion
US5705949A (en) * 1996-09-13 1998-01-06 U.S. Robotics Access Corp. Compensation method for I/Q channel imbalance errors
EP0877476A1 (en) * 1997-05-09 1998-11-11 Nokia Mobile Phones Ltd. Down conversion mixer
US5898912A (en) * 1996-07-01 1999-04-27 Motorola, Inc. Direct current (DC) offset compensation method and apparatus
EP0977351A1 (en) * 1998-07-30 2000-02-02 Motorola Semiconducteurs S.A. Method and apparatus for radio communication

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4888557A (en) * 1989-04-10 1989-12-19 General Electric Company Digital subharmonic sampling down-converter
EP0643477A2 (en) * 1993-09-10 1995-03-15 Nokia Mobile Phones Ltd. Demodulation of an IF-signal by a sigma-delta converter
US5454007A (en) * 1993-09-24 1995-09-26 Rockwell International Corporation Arrangement for and method of concurrent quadrature downconversion input sampling of a bandpass signal
US5564097A (en) * 1994-05-26 1996-10-08 Rockwell International Spread intermediate frequency radio receiver with adaptive spurious rejection
WO1996002977A1 (en) * 1994-07-13 1996-02-01 Stanford Telecommunications, Inc. Method and apparatus for alias-driven frequency downconversion (mixing)
US5640698A (en) * 1995-06-06 1997-06-17 Stanford University Radio frequency signal reception using frequency shifting by discrete-time sub-sampling down-conversion
US5898912A (en) * 1996-07-01 1999-04-27 Motorola, Inc. Direct current (DC) offset compensation method and apparatus
US5705949A (en) * 1996-09-13 1998-01-06 U.S. Robotics Access Corp. Compensation method for I/Q channel imbalance errors
EP0877476A1 (en) * 1997-05-09 1998-11-11 Nokia Mobile Phones Ltd. Down conversion mixer
EP0977351A1 (en) * 1998-07-30 2000-02-02 Motorola Semiconducteurs S.A. Method and apparatus for radio communication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
J. RUDELL: "a 1.9ghz wiedband if double coversion cmos receiver for cordless telephone applicationsnd", IEEE JOURNAL OF SOLID STATE CIRCUITS, vol. 32, no. 12, 1 December 1997 (1997-12-01), new york,us, pages 2071 - 2088, XP000767456 *

Also Published As

Publication number Publication date Type
WO2001089078A8 (en) 2003-03-13 application
EP1297618A2 (en) 2003-04-02 application
WO2001089078A2 (en) 2001-11-22 application

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