FR2143452A1 - - Google Patents

Info

Publication number
FR2143452A1
FR2143452A1 FR7222918A FR7222918A FR2143452A1 FR 2143452 A1 FR2143452 A1 FR 2143452A1 FR 7222918 A FR7222918 A FR 7222918A FR 7222918 A FR7222918 A FR 7222918A FR 2143452 A1 FR2143452 A1 FR 2143452A1
Authority
FR
France
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
FR7222918A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co 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
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of FR2143452A1 publication Critical patent/FR2143452A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/36—Amplitude modulation by means of semiconductor device having at least three electrodes
FR7222918A 1971-06-25 1972-06-23 Withdrawn FR2143452A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15684371A 1971-06-25 1971-06-25

Publications (1)

Publication Number Publication Date
FR2143452A1 true FR2143452A1 (fr) 1973-02-02

Family

ID=22561329

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7222918A Withdrawn FR2143452A1 (fr) 1971-06-25 1972-06-23

Country Status (6)

Country Link
US (1) US3719903A (fr)
BE (1) BE785124A (fr)
DE (1) DE2230151A1 (fr)
FR (1) FR2143452A1 (fr)
IT (1) IT959231B (fr)
NL (1) NL7208353A (fr)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6813485B2 (en) * 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US7321735B1 (en) 1998-10-21 2008-01-22 Parkervision, Inc. Optical down-converter using universal frequency translation technology
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US6873836B1 (en) 1999-03-03 2005-03-29 Parkervision, Inc. Universal platform module and methods and apparatuses relating thereto enabled by universal frequency translation technology
US6853690B1 (en) * 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US7110435B1 (en) 1999-03-15 2006-09-19 Parkervision, Inc. Spread spectrum applications of universal frequency translation
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US7082171B1 (en) 1999-11-24 2006-07-25 Parkervision, Inc. Phase shifting applications of universal frequency translation
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US7554508B2 (en) 2000-06-09 2009-06-30 Parker Vision, Inc. Phased array antenna applications on universal frequency translation
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US7010559B2 (en) * 2000-11-14 2006-03-07 Parkervision, Inc. Method and apparatus for a parallel correlator and applications thereof
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7321640B2 (en) * 2002-06-07 2008-01-22 Parkervision, Inc. Active polyphase inverter filter for quadrature signal generation
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
US7312700B2 (en) * 2005-01-26 2007-12-25 Broadcom Corporation GPS enabled cell phone with common interest alerts
US20070038560A1 (en) * 2005-08-12 2007-02-15 Carl Ansley Transaction payment system and processing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159802A (en) * 1962-08-22 1964-12-01 Gen Electric Cancellation of low frequency components in modulator output
BE639553A (fr) * 1962-11-05
US3191130A (en) * 1963-05-31 1965-06-22 Jr Harry C Rudd Phase shifter using two voltage sensitive elements
US3389327A (en) * 1965-06-01 1968-06-18 Avco Corp Transistorized suppressed carrier balanced modulator
US3482173A (en) * 1966-07-05 1969-12-02 Motorola Inc Wave signal phase and amplitude detector
US3430151A (en) * 1966-09-07 1969-02-25 Massachusetts Inst Technology Amplitude modulation detector for single sideband or suppressed carrier input

Also Published As

Publication number Publication date
NL7208353A (fr) 1972-12-28
BE785124A (fr) 1972-10-16
US3719903A (en) 1973-03-06
IT959231B (it) 1973-11-10
DE2230151A1 (de) 1973-01-11

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Legal Events

Date Code Title Description
ST Notification of lapse