DE3683540D1 - Qpsk-modulator mit traegersubharmonischen pumpsignalen. - Google Patents
Qpsk-modulator mit traegersubharmonischen pumpsignalen.Info
- Publication number
- DE3683540D1 DE3683540D1 DE8686303858T DE3683540T DE3683540D1 DE 3683540 D1 DE3683540 D1 DE 3683540D1 DE 8686303858 T DE8686303858 T DE 8686303858T DE 3683540 T DE3683540 T DE 3683540T DE 3683540 D1 DE3683540 D1 DE 3683540D1
- Authority
- DE
- Germany
- Prior art keywords
- carrier
- qpsk modulator
- pump signals
- subharmonic pump
- subharmonic
- Prior art date
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/738,441 US4612518A (en) | 1985-05-28 | 1985-05-28 | QPSK modulator or demodulator using subharmonic pump carrier signals |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3683540D1 true DE3683540D1 (de) | 1992-03-05 |
Family
ID=24968033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8686303858T Expired - Fee Related DE3683540D1 (de) | 1985-05-28 | 1986-05-21 | Qpsk-modulator mit traegersubharmonischen pumpsignalen. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4612518A (de) |
EP (1) | EP0204463B1 (de) |
JP (1) | JPH07123258B2 (de) |
KR (1) | KR940005373B1 (de) |
CA (1) | CA1253929A (de) |
DE (1) | DE3683540D1 (de) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4726039A (en) * | 1986-05-09 | 1988-02-16 | Honeywell Inc. | Constant amplitude PSK modulator |
US4968956A (en) * | 1989-12-04 | 1990-11-06 | Trw Inc. | Microwave phase modulator having a quadrature path with phase offset |
DE4028371A1 (de) * | 1990-09-07 | 1992-03-12 | Standard Elektrik Lorenz Ag | Modulator- und mischstufe |
US5565930A (en) * | 1993-10-26 | 1996-10-15 | Samsung Electronics Co., Ltd. | Receiver with oversampling analog-to-digital conversion for digital signals accompanied by analog TV signals |
US5425057A (en) * | 1994-04-25 | 1995-06-13 | Paff; Thomas M. | Phase demodulation method and apparatus using asynchronous sampling pulses |
DE69532596T2 (de) * | 1994-05-09 | 2004-08-05 | Canon K.K. | Verfahren zur Steuerung der Stromversorgung in einer Mehrprozessbetriebsumgebung |
US5815115A (en) * | 1995-12-26 | 1998-09-29 | Lucent Technologies Inc. | High speed wireless transmitters and receivers |
US6061551A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for down-converting electromagnetic signals |
US6694128B1 (en) | 1998-08-18 | 2004-02-17 | Parkervision, Inc. | Frequency synthesizer using universal frequency translation technology |
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 |
US6091940A (en) | 1998-10-21 | 2000-07-18 | Parkervision, Inc. | Method and system for frequency up-conversion |
US6542722B1 (en) | 1998-10-21 | 2003-04-01 | Parkervision, Inc. | Method and system for frequency up-conversion with variety of transmitter configurations |
US6560301B1 (en) | 1998-10-21 | 2003-05-06 | Parkervision, Inc. | Integrated frequency translation and selectivity with a variety of filter embodiments |
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 |
US7236754B2 (en) | 1999-08-23 | 2007-06-26 | Parkervision, Inc. | Method and system for frequency up-conversion |
US6049706A (en) * | 1998-10-21 | 2000-04-11 | Parkervision, Inc. | Integrated frequency translation and selectivity |
US7039372B1 (en) | 1998-10-21 | 2006-05-02 | Parkervision, Inc. | Method and system for frequency up-conversion with modulation embodiments |
US6370371B1 (en) | 1998-10-21 | 2002-04-09 | Parkervision, Inc. | Applications of universal frequency translation |
US6061555A (en) * | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for ensuring reception of a communications signal |
US6704549B1 (en) | 1999-03-03 | 2004-03-09 | Parkvision, Inc. | Multi-mode, multi-band communication system |
US6704558B1 (en) | 1999-01-22 | 2004-03-09 | Parkervision, Inc. | Image-reject down-converter and embodiments thereof, such as the family radio service |
US6879817B1 (en) | 1999-04-16 | 2005-04-12 | Parkervision, Inc. | DC offset, re-radiation, and I/Q solutions using 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 |
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 |
US7065162B1 (en) | 1999-04-16 | 2006-06-20 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same |
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 |
US7010286B2 (en) | 2000-04-14 | 2006-03-07 | Parkervision, Inc. | Apparatus, system, and method for down-converting and up-converting electromagnetic signals |
US7454453B2 (en) | 2000-11-14 | 2008-11-18 | Parkervision, Inc. | Methods, systems, and computer program products for parallel correlation and applications thereof |
US7072427B2 (en) | 2001-11-09 | 2006-07-04 | Parkervision, Inc. | Method and apparatus for reducing DC offsets in a communication system |
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 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4276521A (en) * | 1978-12-18 | 1981-06-30 | Trw Inc. | Quadriphase integrated high-speed microwave modulator |
US4216542A (en) * | 1979-03-06 | 1980-08-05 | Nasa | Method and apparatus for quadriphase-shift-key and linear phase modulation |
US4352071A (en) * | 1979-06-22 | 1982-09-28 | Communications Satellite Corporation | Planar QPSK demodulator |
FR2515449B1 (fr) * | 1981-10-23 | 1986-08-14 | Thomson Csf | Dispositif melangeur subharmonique hyperfrequence et systeme hyperfrequence utilisant un tel dispositif |
US4480336A (en) * | 1982-09-20 | 1984-10-30 | General Dynamics, Pomona Division | Orthogonal hybrid fin-line mixer |
US4528526A (en) * | 1983-05-31 | 1985-07-09 | Motorola, Inc. | PSK modulator with noncollapsable output for use with a PLL power amplifier |
-
1985
- 1985-05-28 US US06/738,441 patent/US4612518A/en not_active Expired - Lifetime
-
1986
- 1986-05-21 EP EP86303858A patent/EP0204463B1/de not_active Expired - Lifetime
- 1986-05-21 DE DE8686303858T patent/DE3683540D1/de not_active Expired - Fee Related
- 1986-05-27 KR KR1019860004142A patent/KR940005373B1/ko not_active IP Right Cessation
- 1986-05-27 CA CA000510066A patent/CA1253929A/en not_active Expired
- 1986-05-28 JP JP61121377A patent/JPH07123258B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US4612518A (en) | 1986-09-16 |
EP0204463B1 (de) | 1992-01-22 |
CA1253929A (en) | 1989-05-09 |
EP0204463A3 (en) | 1988-03-16 |
EP0204463A2 (de) | 1986-12-10 |
KR940005373B1 (ko) | 1994-06-17 |
KR860009543A (ko) | 1986-12-23 |
JPS6211346A (ja) | 1987-01-20 |
JPH07123258B2 (ja) | 1995-12-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3683540D1 (de) | Qpsk-modulator mit traegersubharmonischen pumpsignalen. | |
DE3685508T2 (de) | Infusionspumpe mit verfuegbarer kassette. | |
FI882652A0 (fi) | Pump. | |
DE3688518D1 (de) | Halbleiteranordnungen mit leitfaehigkeitsmodulation. | |
DE68904499D1 (de) | Behaelter mit auftraeger. | |
DE3687920T2 (de) | Elektrooptischer welleneleitermodulator. | |
NO862790D0 (no) | Roerkobling. | |
DE3669543D1 (de) | Ablagern von titanaluminiden. | |
DE3680836D1 (de) | Tonerdetraeger mit breiten poren. | |
NO864587D0 (no) | Roerkopling. | |
DE3576387D1 (de) | Membranpumpe mit umlaufspuelung. | |
DE3683673D1 (de) | Plasmapaneel mit konzentrischer durchfuhr. | |
DE3675783D1 (de) | Amplitudenmodulator. | |
NO164368C (no) | Hydraulisk straalepumpe. | |
DE3689609D1 (de) | Verbinder mit Erdungskontakt. | |
NO864266D0 (no) | Roerkopling. | |
DE3676495D1 (de) | Kabeltraeger. | |
NO864437D0 (no) | Baereanordning. | |
DE3686565T2 (de) | Dauertraeger-ueberwachungsschaltung. | |
DE3678538D1 (de) | Pumpanordnung mit veraenderlicher verdraengung. | |
NO863387D0 (no) | Fluidpumpe. | |
NO870849D0 (no) | Fornettede fraktureringsvaesker. | |
FI854880A0 (fi) | Anordning foer axiell foerskjutning av en pumps loephjul. | |
ATE65227T1 (de) | Traeger mit verbesserten seitlichen waenden. | |
DE3675011D1 (de) | Dichtung mit hydrodynamischem antrieb. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Free format text: BLUMBACH, KRAMER & PARTNER, 65193 WIESBADEN |
|
8339 | Ceased/non-payment of the annual fee |