ES2064419T3 - Receptor para la recepcion de una subportadora de amplitud modulada. - Google Patents
Receptor para la recepcion de una subportadora de amplitud modulada.Info
- Publication number
- ES2064419T3 ES2064419T3 ES89121207T ES89121207T ES2064419T3 ES 2064419 T3 ES2064419 T3 ES 2064419T3 ES 89121207 T ES89121207 T ES 89121207T ES 89121207 T ES89121207 T ES 89121207T ES 2064419 T3 ES2064419 T3 ES 2064419T3
- Authority
- ES
- Spain
- Prior art keywords
- reception
- receiver
- carrier
- subporter
- modulated amplitude
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/22—Homodyne or synchrodyne circuits
- H03D1/2245—Homodyne or synchrodyne circuits using two quadrature channels
- H03D1/2254—Homodyne or synchrodyne circuits using two quadrature channels and a phase locked loop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/1646—Circuits adapted for the reception of stereophonic signals
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Circuits Of Receivers In General (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
UN RECEPTOR DIGITAL MUESTREA DATOS DESDE UN SUBPORTADOR MODULADO DE AMPLITUD A UNA PROPORCION MENOR QUE DOS VECES LA FRECUENCIA MAXIMA DEL SUBPORTADOR, POR MUESTREAR A PUNTOS DE FASE CONOCIDA. EL MUESTREAR A PUNTOS DE FASE CONOCIDA ES REALIZADO POR GENERAR UNA MUESTRA PUNTUAL DESDE UNA FASE DE SEÑAL FIJADA A, Y TRANSMITIDA CON, EL SUBPORTADOR DE DATOS MODULADOS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/388,186 US4893341A (en) | 1989-08-01 | 1989-08-01 | Digital receiver operating at sub-nyquist sampling rate |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2064419T3 true ES2064419T3 (es) | 1995-02-01 |
Family
ID=23533045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES89121207T Expired - Lifetime ES2064419T3 (es) | 1989-08-01 | 1989-11-16 | Receptor para la recepcion de una subportadora de amplitud modulada. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4893341A (es) |
EP (1) | EP0411207B1 (es) |
JP (1) | JPH02192251A (es) |
AT (1) | ATE112905T1 (es) |
CA (1) | CA2004248A1 (es) |
DE (1) | DE68918857T2 (es) |
ES (1) | ES2064419T3 (es) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2242800B (en) * | 1990-04-03 | 1993-11-24 | Sony Corp | Digital phase detector arrangements |
US5416806A (en) * | 1992-06-15 | 1995-05-16 | International Business Machines Corporation | Timing loop method and apparatus for PRML data detection |
DE4303387A1 (de) * | 1993-02-05 | 1994-08-11 | Blaupunkt Werke Gmbh | Schaltungsanordnung zur Decodierung eines Multiplexsignals in einem Stereo-Rundfunkempfänger |
JPH07162383A (ja) * | 1993-12-07 | 1995-06-23 | Hitachi Denshi Ltd | Fmステレオ放送装置 |
US5610825A (en) * | 1994-11-08 | 1997-03-11 | Johnson; William J. | Method and apparatus for the display of digitized analog signal loss |
US5768374A (en) * | 1996-08-06 | 1998-06-16 | Transcrypt International | Apparatus and method for continuous scrambling while transmitting or receiving synchronization data |
US6295362B1 (en) * | 1998-01-20 | 2001-09-25 | General Instrument Corporation | Direct digital synthesis of FM 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 |
US6694128B1 (en) | 1998-08-18 | 2004-02-17 | Parkervision, Inc. | Frequency synthesizer using universal frequency translation technology |
US6061551A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for down-converting electromagnetic signals |
US6091940A (en) | 1998-10-21 | 2000-07-18 | Parkervision, Inc. | Method and system for frequency up-conversion |
US6061555A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for ensuring reception of a communications signal |
US6370371B1 (en) | 1998-10-21 | 2002-04-09 | Parkervision, Inc. | Applications of universal frequency translation |
US7236754B2 (en) * | 1999-08-23 | 2007-06-26 | Parkervision, Inc. | Method and system for frequency up-conversion |
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 |
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 |
US6542722B1 (en) | 1998-10-21 | 2003-04-01 | Parkervision, Inc. | Method and system for frequency up-conversion with variety of transmitter configurations |
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 |
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 |
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 |
US7292835B2 (en) * | 2000-01-28 | 2007-11-06 | Parkervision, Inc. | Wireless and wired cable modem applications of universal frequency translation technology |
US7010286B2 (en) * | 2000-04-14 | 2006-03-07 | Parkervision, Inc. | Apparatus, system, and method for down-converting and up-converting electromagnetic signals |
US7010559B2 (en) * | 2000-11-14 | 2006-03-07 | Parkervision, Inc. | Method and apparatus for a parallel correlator and applications thereof |
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 |
US7460584B2 (en) | 2002-07-18 | 2008-12-02 | Parkervision, Inc. | Networking methods and systems |
US7379883B2 (en) | 2002-07-18 | 2008-05-27 | Parkervision, Inc. | Networking methods and systems |
US6942660B2 (en) * | 2002-11-19 | 2005-09-13 | Conmed Corporation | Electrosurgical generator and method with multiple semi-autonomously executable functions |
TWI280690B (en) * | 2003-03-18 | 2007-05-01 | Tdk Corp | Electronic device for wireless communications and reflector device for wireless communication cards |
US7945004B2 (en) | 2007-12-14 | 2011-05-17 | Motorola Mobility, Inc. | Method and apparatus for detecting a frequency band and mode of operation |
GB0725111D0 (en) * | 2007-12-21 | 2008-01-30 | Wolfson Microelectronics Plc | Lower rate emulation |
US8055222B2 (en) | 2008-12-16 | 2011-11-08 | Motorola Mobility, Inc. | Multiple protocol signal detector |
US10778260B2 (en) * | 2018-04-20 | 2020-09-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for energy efficient transmission and reception of a signal using aliasing |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4757538A (en) * | 1986-07-07 | 1988-07-12 | Tektronix, Inc. | Separation of L+R from L-R in BTSC system |
US4688253A (en) * | 1986-07-28 | 1987-08-18 | Tektronix, Inc. | L+R separation system |
JP2571247B2 (ja) * | 1988-01-07 | 1997-01-16 | パイオニア株式会社 | ラジオデータ受信機における受信周波数選択方法 |
-
1989
- 1989-08-01 US US07/388,186 patent/US4893341A/en not_active Expired - Lifetime
- 1989-11-16 ES ES89121207T patent/ES2064419T3/es not_active Expired - Lifetime
- 1989-11-16 AT AT89121207T patent/ATE112905T1/de not_active IP Right Cessation
- 1989-11-16 EP EP89121207A patent/EP0411207B1/en not_active Expired - Lifetime
- 1989-11-16 DE DE68918857T patent/DE68918857T2/de not_active Expired - Lifetime
- 1989-11-20 JP JP1299895A patent/JPH02192251A/ja active Pending
- 1989-11-30 CA CA002004248A patent/CA2004248A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE68918857D1 (de) | 1994-11-17 |
CA2004248A1 (en) | 1991-02-01 |
EP0411207B1 (en) | 1994-10-12 |
EP0411207A2 (en) | 1991-02-06 |
US4893341A (en) | 1990-01-09 |
ATE112905T1 (de) | 1994-10-15 |
EP0411207A3 (en) | 1992-02-05 |
JPH02192251A (ja) | 1990-07-30 |
DE68918857T2 (de) | 1995-03-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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