TW257917B - Receiver comprising a pulse count FM demodulator, and pulse count FM demodulator - Google Patents
Receiver comprising a pulse count FM demodulator, and pulse count FM demodulatorInfo
- Publication number
- TW257917B TW257917B TW084102197A TW84102197A TW257917B TW 257917 B TW257917 B TW 257917B TW 084102197 A TW084102197 A TW 084102197A TW 84102197 A TW84102197 A TW 84102197A TW 257917 B TW257917 B TW 257917B
- Authority
- TW
- Taiwan
- Prior art keywords
- capacitance
- demodulator
- transistor
- pulse shaper
- pulse count
- Prior art date
Links
Classifications
-
- 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
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/04—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by counting or integrating cycles of oscillations
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K9/00—Demodulating pulses which have been modulated with a continuously-variable signal
- H03K9/06—Demodulating pulses which have been modulated with a continuously-variable signal of frequency- or rate-modulated pulses
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Circuits Of Receivers In General (AREA)
- Manipulation Of Pulses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94200986 | 1994-04-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
TW257917B true TW257917B (en) | 1995-09-21 |
Family
ID=8216792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW084102197A TW257917B (en) | 1994-04-12 | 1995-03-08 | Receiver comprising a pulse count FM demodulator, and pulse count FM demodulator |
Country Status (7)
Country | Link |
---|---|
US (1) | US5619538A (zh) |
EP (1) | EP0755586B1 (zh) |
JP (1) | JPH09511633A (zh) |
KR (1) | KR970702613A (zh) |
DE (1) | DE69522447T2 (zh) |
TW (1) | TW257917B (zh) |
WO (1) | WO1995028033A2 (zh) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
US6049706A (en) | 1998-10-21 | 2000-04-11 | Parkervision, Inc. | Integrated frequency translation and selectivity |
US6560301B1 (en) | 1998-10-21 | 2003-05-06 | Parkervision, Inc. | Integrated frequency translation and selectivity with a variety of filter embodiments |
US6370371B1 (en) | 1998-10-21 | 2002-04-09 | Parkervision, Inc. | Applications of 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 |
US7236754B2 (en) | 1999-08-23 | 2007-06-26 | 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 |
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 |
US7693230B2 (en) | 1999-04-16 | 2010-04-06 | Parkervision, Inc. | Apparatus and method of differential IQ frequency up-conversion |
US7065162B1 (en) | 1999-04-16 | 2006-06-20 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same |
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 |
FR2817090A1 (fr) * | 2000-11-21 | 2002-05-24 | Koninkl Philips Electronics Nv | Dispositif de modulation de la largeur d'impulsion de signaux tres hautes frequences |
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 (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2956227A (en) * | 1956-09-19 | 1960-10-11 | North American Aviation Inc | Frequency sensitive device |
US3562645A (en) * | 1967-06-23 | 1971-02-09 | Gen Electric | Frequency transducer utilizing pulse generator producing frequency-responsive,variable-width output pulses |
DE1962004A1 (de) * | 1969-12-11 | 1971-06-16 | Siegfried Schwarz | Stoersichere Multivibratoren |
DE2136217A1 (de) * | 1971-07-20 | 1973-01-25 | Bosch Gmbh Robert | Monostabile kippschaltung |
JPS54101651A (en) * | 1978-01-27 | 1979-08-10 | Toshiba Corp | Fm demodulator circuit |
JPS5715505A (en) * | 1980-07-03 | 1982-01-26 | Toshiba Corp | Fm demodulation circuit |
JPS60187120A (ja) * | 1984-03-07 | 1985-09-24 | Toshiba Corp | 単安定マルチバイブレ−タ回路 |
US5039956A (en) * | 1987-11-17 | 1991-08-13 | Amp Incorporated | Frequency synthesizer for frequency agile modem |
US5126846A (en) * | 1988-08-08 | 1992-06-30 | Kabushiki Kaisha Toshiba | Non-linear amplifier and non-linear emphasis/deemphasis circuit using the same |
JPH0770925B2 (ja) * | 1989-05-16 | 1995-07-31 | 三洋電機株式会社 | Fm復調回路 |
US5315651A (en) * | 1993-06-09 | 1994-05-24 | Rockwell International Corporation | Active surge rejection circuit |
-
1995
- 1995-03-08 TW TW084102197A patent/TW257917B/zh active
- 1995-03-20 KR KR1019960705798A patent/KR970702613A/ko not_active Application Discontinuation
- 1995-03-20 JP JP7526200A patent/JPH09511633A/ja active Pending
- 1995-03-20 DE DE69522447T patent/DE69522447T2/de not_active Expired - Fee Related
- 1995-03-20 WO PCT/IB1995/000187 patent/WO1995028033A2/en active IP Right Grant
- 1995-03-20 EP EP95910706A patent/EP0755586B1/en not_active Expired - Lifetime
- 1995-03-24 US US08/410,022 patent/US5619538A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0755586A1 (en) | 1997-01-29 |
WO1995028033A2 (en) | 1995-10-19 |
DE69522447D1 (de) | 2001-10-04 |
KR970702613A (ko) | 1997-05-13 |
DE69522447T2 (de) | 2002-05-02 |
EP0755586B1 (en) | 2001-08-29 |
JPH09511633A (ja) | 1997-11-18 |
US5619538A (en) | 1997-04-08 |
WO1995028033A3 (en) | 1995-12-07 |
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