DE69005066D1 - Transponder zum Positionieren eines Satelliten. - Google Patents
Transponder zum Positionieren eines Satelliten.Info
- Publication number
- DE69005066D1 DE69005066D1 DE90117358T DE69005066T DE69005066D1 DE 69005066 D1 DE69005066 D1 DE 69005066D1 DE 90117358 T DE90117358 T DE 90117358T DE 69005066 T DE69005066 T DE 69005066T DE 69005066 D1 DE69005066 D1 DE 69005066D1
- Authority
- DE
- Germany
- Prior art keywords
- transponder
- satellite
- positioning
- 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
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
- H03L7/107—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8912043A FR2651937B1 (fr) | 1989-09-14 | 1989-09-14 | Transpondeur de mise a poste d'un satellite. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE69005066D1 true DE69005066D1 (de) | 1994-01-20 |
Family
ID=9385472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE90117358T Expired - Lifetime DE69005066D1 (de) | 1989-09-14 | 1990-09-10 | Transponder zum Positionieren eines Satelliten. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5163160A (de) |
EP (1) | EP0417682B1 (de) |
JP (1) | JPH03112224A (de) |
CA (1) | CA2025240A1 (de) |
DE (1) | DE69005066D1 (de) |
FR (1) | FR2651937B1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6002926A (en) * | 1989-09-27 | 1999-12-14 | Nec Corporation | Double superheterodyne type receiving circuit |
GB9115350D0 (en) * | 1991-07-16 | 1991-08-28 | Navstar Ltd | A radio receiver |
US5566204A (en) * | 1994-05-02 | 1996-10-15 | Raytheon Company | Fast acquisition clock recovery system |
KR0143023B1 (ko) * | 1994-08-03 | 1998-08-01 | 김광호 | 디지탈 무선전화기의 송수신 신호처리 회로 |
US5463351A (en) * | 1994-09-29 | 1995-10-31 | Motorola, Inc. | Nested digital phase lock loop |
US5963862A (en) * | 1996-10-25 | 1999-10-05 | Pt Pasifik Satelit Nusantara | Integrated telecommunications system providing fixed and mobile satellite-based services |
US6067453A (en) * | 1996-10-25 | 2000-05-23 | Pt Pasifik Satelit Nusantara | Satellite-based direct access telecommunications systems |
JP3825540B2 (ja) * | 1997-09-05 | 2006-09-27 | 松下電器産業株式会社 | 受信機および送受信機 |
US6324379B1 (en) * | 1998-05-28 | 2001-11-27 | California Amplifier, Inc. | Transceiver systems and methods that preserve frequency order when downconverting communication signals and upconverting data signals |
US6564039B1 (en) * | 2000-02-29 | 2003-05-13 | Motorola, Inc. | Frequency generation circuit and method of operating a tranceiver |
US6882834B1 (en) * | 2002-04-26 | 2005-04-19 | Analog Devices, Inc. | Direct conversion receiver apparatus |
JP2010131866A (ja) * | 2008-12-04 | 2010-06-17 | Abbott Japan Co Ltd | チェックシート及びこれを備えたノート |
US9444470B2 (en) * | 2014-01-31 | 2016-09-13 | Microsemi Semiconductor Ulc | Double phase-locked loop with frequency stabilization |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS527613A (en) * | 1975-07-09 | 1977-01-20 | Oki Electric Ind Co Ltd | Afc system |
US4365349A (en) * | 1980-02-01 | 1982-12-21 | Nippon Gakki Seizo Kabushiki Kaisha | Radio receiver having phase locked loop and automatic frequency control loop for stably maintaining local oscillator frequency of voltage-controlled local oscillator |
US4365211A (en) * | 1980-10-31 | 1982-12-21 | Westinghouse Electric Corp. | Phase-locked loop with initialization loop |
US4513447A (en) * | 1982-12-13 | 1985-04-23 | Motorola, Inc. | Simplified frequency scheme for coherent transponders |
JPS61184005A (ja) * | 1985-02-08 | 1986-08-16 | Matsushita Electric Ind Co Ltd | 周波数シンセサイザ装置 |
US4879757A (en) * | 1987-05-07 | 1989-11-07 | Hazeltine Corp. | Tweet elimination, or reduction, in superheterodyne receivers |
US5029237A (en) * | 1988-06-30 | 1991-07-02 | At&E Corporation | Radio receiver frequency control system |
US4955075A (en) * | 1988-10-17 | 1990-09-04 | Motorola, Inc. | Battery saver circuit for a frequency synthesizer |
-
1989
- 1989-09-14 FR FR8912043A patent/FR2651937B1/fr not_active Expired - Fee Related
-
1990
- 1990-09-10 EP EP90117358A patent/EP0417682B1/de not_active Expired - Lifetime
- 1990-09-10 DE DE90117358T patent/DE69005066D1/de not_active Expired - Lifetime
- 1990-09-13 CA CA002025240A patent/CA2025240A1/fr not_active Abandoned
- 1990-09-13 JP JP2243658A patent/JPH03112224A/ja active Pending
- 1990-09-14 US US07/582,294 patent/US5163160A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2651937B1 (fr) | 1994-04-08 |
JPH03112224A (ja) | 1991-05-13 |
FR2651937A1 (fr) | 1991-03-15 |
US5163160A (en) | 1992-11-10 |
EP0417682B1 (de) | 1993-12-08 |
CA2025240A1 (fr) | 1991-03-15 |
EP0417682A1 (de) | 1991-03-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de |