NL175575C - Filter- en demodulatie-inrichting. - Google Patents
Filter- en demodulatie-inrichting.Info
- Publication number
- NL175575C NL175575C NLAANVRAGE7605726,A NL7605726A NL175575C NL 175575 C NL175575 C NL 175575C NL 7605726 A NL7605726 A NL 7605726A NL 175575 C NL175575 C NL 175575C
- Authority
- NL
- Netherlands
- Prior art keywords
- filter
- demodulation device
- demodulation
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/06—Demodulator circuits; Receiver circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D5/00—Circuits for demodulating amplitude-modulated or angle-modulated oscillations at will
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
- H03D2200/0041—Functional aspects of demodulators
- H03D2200/0047—Offset of DC voltage or frequency
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
- H03D2200/0041—Functional aspects of demodulators
- H03D2200/0054—Digital filters
- H03D2200/0056—Digital filters including a digital decimation filter
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
- H03D2200/0041—Functional aspects of demodulators
- H03D2200/006—Signal sampling
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
- H03D2200/0041—Functional aspects of demodulators
- H03D2200/0082—Quadrature arrangements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/16—Multiple-frequency-changing
- H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
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)
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NLAANVRAGE7605726,A NL175575C (nl) | 1976-05-28 | 1976-05-28 | Filter- en demodulatie-inrichting. |
DE2721850A DE2721850C2 (de) | 1976-05-28 | 1977-05-14 | Filter- und Demodulationsanordnung |
US05/799,884 US4130806A (en) | 1976-05-28 | 1977-05-23 | Filter and demodulation arrangement |
GB22042/77A GB1529544A (en) | 1976-05-28 | 1977-05-25 | Filter and demodulation arrangement |
FR7715898A FR2361772A1 (fr) | 1976-05-28 | 1977-05-25 | Dispositif de filtrage et de demodulation |
AU25485/77A AU514328B2 (en) | 1976-05-28 | 1977-05-25 | Digital filter and demodulator for quarternary signals |
SE7706093A SE413273B (sv) | 1976-05-28 | 1977-05-25 | Anordning for filtrering och demodulering av passbandssignaler |
JP6001177A JPS52146156A (en) | 1976-05-28 | 1977-05-25 | Passing band signal filtering and demodulating circuit |
BE177963A BE855101A (fr) | 1976-05-28 | 1977-05-26 | Dispositif de filtrage et de demodulation |
CA279,169A CA1089028A (en) | 1976-05-28 | 1977-05-26 | Filter and demodulation arrangement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NLAANVRAGE7605726,A NL175575C (nl) | 1976-05-28 | 1976-05-28 | Filter- en demodulatie-inrichting. |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7605726A NL7605726A (nl) | 1977-11-30 |
NL175575B NL175575B (nl) | 1984-06-18 |
NL175575C true NL175575C (nl) | 1984-11-16 |
Family
ID=19826272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NLAANVRAGE7605726,A NL175575C (nl) | 1976-05-28 | 1976-05-28 | Filter- en demodulatie-inrichting. |
Country Status (10)
Country | Link |
---|---|
US (1) | US4130806A (nl) |
JP (1) | JPS52146156A (nl) |
AU (1) | AU514328B2 (nl) |
BE (1) | BE855101A (nl) |
CA (1) | CA1089028A (nl) |
DE (1) | DE2721850C2 (nl) |
FR (1) | FR2361772A1 (nl) |
GB (1) | GB1529544A (nl) |
NL (1) | NL175575C (nl) |
SE (1) | SE413273B (nl) |
Families Citing this family (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5821466B2 (ja) * | 1979-02-13 | 1983-04-30 | 日本電信電話株式会社 | デイジタル信号受信方式 |
US4309772A (en) * | 1980-01-24 | 1982-01-05 | Motorola, Inc. | Soft quantizer for FM radio binary digital signaling |
US4415918A (en) * | 1981-08-31 | 1983-11-15 | Rca Corporation | Digital color television signal demodulator |
DE3174147D1 (en) * | 1981-11-30 | 1986-04-24 | Ibm | Method for receiving a data signal with double side-band quadrature carrier modulation |
US4592074A (en) * | 1984-06-01 | 1986-05-27 | Rockwell International Corporation | Simplified hardware implementation of a digital IF translator |
FR2568074B1 (fr) * | 1984-07-17 | 1992-01-10 | Lignes Telegraph Telephon | Demodulateur de signaux electriques a plusieurs etats d'amplitude et de phase pour equipements de transmission de donnees. |
US4893316A (en) * | 1985-04-04 | 1990-01-09 | Motorola, Inc. | Digital radio frequency receiver |
EP0216803B1 (en) * | 1985-04-04 | 1993-03-31 | Motorola, Inc. | Digital zero-if selectivity section |
NL8700244A (nl) * | 1987-02-02 | 1988-09-01 | Philips Nv | Modulator met een kamfilter. |
US4910752A (en) * | 1987-06-15 | 1990-03-20 | Motorola, Inc. | Low power digital receiver |
US4811362A (en) * | 1987-06-15 | 1989-03-07 | Motorola, Inc. | Low power digital receiver |
DE4021226A1 (de) * | 1990-07-04 | 1992-01-16 | Thomson Ind Technology Ass S A | Spannungsgesteuerte filterschaltung |
US5212817A (en) * | 1990-09-14 | 1993-05-18 | Atkinson Noel D | Ultra high speed scan system |
DE4132907A1 (de) * | 1991-10-04 | 1993-04-08 | Thomson Brandt Gmbh | Filteranordnung |
AU682032B2 (en) * | 1993-06-29 | 1997-09-18 | Sony Corporation | Audio signal transmitting apparatus and the method thereof |
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 |
US6560301B1 (en) | 1998-10-21 | 2003-05-06 | Parkervision, Inc. | Integrated frequency translation and selectivity with a variety of filter embodiments |
US6049706A (en) | 1998-10-21 | 2000-04-11 | Parkervision, Inc. | Integrated frequency translation and selectivity |
US7295826B1 (en) | 1998-10-21 | 2007-11-13 | Parkervision, Inc. | Integrated frequency translation and selectivity with gain control functionality, and applications thereof |
US6370371B1 (en) | 1998-10-21 | 2002-04-09 | Parkervision, Inc. | Applications of universal frequency translation |
US7039372B1 (en) | 1998-10-21 | 2006-05-02 | Parkervision, Inc. | Method and system for frequency up-conversion with modulation embodiments |
US6061555A (en) * | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for ensuring reception of a communications signal |
US7236754B2 (en) | 1999-08-23 | 2007-06-26 | Parkervision, Inc. | Method and system for frequency up-conversion |
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 |
US7027786B1 (en) | 1998-10-21 | 2006-04-11 | Parkervision, Inc. | Carrier and clock recovery using universal frequency translation |
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 |
US7006805B1 (en) | 1999-01-22 | 2006-02-28 | Parker Vision, Inc. | Aliasing communication system with multi-mode and multi-band functionality and embodiments thereof, such as the family radio service |
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 |
US6879817B1 (en) | 1999-04-16 | 2005-04-12 | Parkervision, Inc. | DC offset, re-radiation, and I/Q solutions using universal frequency translation technology |
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 |
US7072390B1 (en) | 1999-08-04 | 2006-07-04 | Parkervision, Inc. | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments |
US7054296B1 (en) | 1999-08-04 | 2006-05-30 | Parkervision, Inc. | Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation |
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 |
US6963734B2 (en) | 1999-12-22 | 2005-11-08 | Parkervision, Inc. | Differential frequency down-conversion using techniques of universal frequency translation technology |
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 |
GB2362279B (en) * | 2000-05-12 | 2004-12-29 | Global Silicon Ltd | Radio receiver |
US7554508B2 (en) | 2000-06-09 | 2009-06-30 | Parker Vision, Inc. | Phased array antenna applications on universal frequency translation |
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 |
US7085335B2 (en) | 2001-11-09 | 2006-08-01 | Parkervision, Inc. | Method and apparatus for reducing DC offsets in a communication system |
US6975848B2 (en) | 2002-06-04 | 2005-12-13 | Parkervision, Inc. | Method and apparatus for DC offset removal in a radio frequency communication channel |
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 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3493876A (en) * | 1966-06-28 | 1970-02-03 | Us Army | Stable coherent filter for sampled bandpass signals |
US3525541A (en) * | 1969-03-24 | 1970-08-25 | Clifford H Snyder Jr | Quick disconnect coupling for flanged conduits |
NL7101037A (nl) * | 1971-01-27 | 1972-07-31 | Philips Nv | |
US3971996A (en) * | 1973-01-18 | 1976-07-27 | Hycom Incorporated | Phase tracking network |
US3943448A (en) * | 1974-09-11 | 1976-03-09 | Hycom Incorporated | Apparatus and method for synchronizing a digital modem using a random multilevel data signal |
NL168669C (nl) * | 1974-09-16 | 1982-04-16 | Philips Nv | Interpolerend digitaal filter met ingangsbuffer. |
-
1976
- 1976-05-28 NL NLAANVRAGE7605726,A patent/NL175575C/nl not_active IP Right Cessation
-
1977
- 1977-05-14 DE DE2721850A patent/DE2721850C2/de not_active Expired
- 1977-05-23 US US05/799,884 patent/US4130806A/en not_active Expired - Lifetime
- 1977-05-25 SE SE7706093A patent/SE413273B/xx not_active IP Right Cessation
- 1977-05-25 AU AU25485/77A patent/AU514328B2/en not_active Expired
- 1977-05-25 FR FR7715898A patent/FR2361772A1/fr active Granted
- 1977-05-25 JP JP6001177A patent/JPS52146156A/ja active Pending
- 1977-05-25 GB GB22042/77A patent/GB1529544A/en not_active Expired
- 1977-05-26 BE BE177963A patent/BE855101A/xx unknown
- 1977-05-26 CA CA279,169A patent/CA1089028A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1529544A (en) | 1978-10-25 |
DE2721850A1 (de) | 1977-12-08 |
SE7706093L (sv) | 1977-11-29 |
BE855101A (fr) | 1977-11-28 |
US4130806A (en) | 1978-12-19 |
SE413273B (sv) | 1980-05-12 |
FR2361772A1 (fr) | 1978-03-10 |
FR2361772B1 (nl) | 1981-08-28 |
AU2548577A (en) | 1978-11-30 |
AU514328B2 (en) | 1981-02-05 |
DE2721850C2 (de) | 1983-06-09 |
NL7605726A (nl) | 1977-11-30 |
JPS52146156A (en) | 1977-12-05 |
CA1089028A (en) | 1980-11-04 |
NL175575B (nl) | 1984-06-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
V1 | Lapsed because of non-payment of the annual fee |