ATE446613T1 - Verbesserte verfahren und vorrichtung zur auf- und abwärtsumsetzung von hochfrequenzsignalen (rf) - Google Patents
Verbesserte verfahren und vorrichtung zur auf- und abwärtsumsetzung von hochfrequenzsignalen (rf)Info
- Publication number
- ATE446613T1 ATE446613T1 AT01944827T AT01944827T ATE446613T1 AT E446613 T1 ATE446613 T1 AT E446613T1 AT 01944827 T AT01944827 T AT 01944827T AT 01944827 T AT01944827 T AT 01944827T AT E446613 T1 ATE446613 T1 AT E446613T1
- Authority
- AT
- Austria
- Prior art keywords
- phi
- signal
- mixing
- frequency
- signals
- Prior art date
Links
Classifications
-
- 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
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0475—Circuits with means for limiting noise, interference or distortion
-
- 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
- H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
-
- 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
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
- H04B1/1036—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal with automatic suppression of narrow band noise or interference, e.g. by using tuneable notch filters
-
- 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
- H04B1/30—Circuits for homodyne or synchrodyne receivers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Superheterodyne Receivers (AREA)
- Radar Systems Or Details Thereof (AREA)
- Burglar Alarm Systems (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CA2000/000996 WO2001017122A1 (en) | 1999-09-01 | 2000-09-01 | Improved method and apparatus for up- and down-conversion of radio frequency (rf) signals |
PCT/CA2000/000995 WO2001017121A1 (en) | 1999-09-01 | 2000-09-01 | Improved method and apparatus for up-conversion of radio frequency (rf) signals |
PCT/CA2000/000994 WO2001017120A2 (en) | 1999-09-01 | 2000-09-01 | Freqency translator using a non-periodic local oscillator signal |
PCT/CA2001/000876 WO2002019548A2 (en) | 2000-09-01 | 2001-06-19 | Improved method and apparatus for up- and down- conversion of radio frequency (rf) signals |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE446613T1 true ATE446613T1 (de) | 2009-11-15 |
Family
ID=27168651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT01944827T ATE446613T1 (de) | 2000-09-01 | 2001-06-19 | Verbesserte verfahren und vorrichtung zur auf- und abwärtsumsetzung von hochfrequenzsignalen (rf) |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1314255B1 (de) |
AT (1) | ATE446613T1 (de) |
AU (1) | AU2001267222A1 (de) |
CA (1) | CA2421173A1 (de) |
DE (1) | DE60140261D1 (de) |
WO (1) | WO2002019548A2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2375291C (en) * | 2002-03-08 | 2005-05-17 | Sirific Wireless Corporation | Generation of virtual local oscillator inputs for use in direct conversion radio systems |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2627586C3 (de) * | 1976-06-19 | 1980-03-13 | Carl Schenck Ag, 6100 Darmstadt | Verfahren und Schaltungsanordnung zur Multiplikation von elektrischen Wechselspannungssignalen |
US5390346A (en) * | 1994-01-21 | 1995-02-14 | General Instrument Corporation Of Delaware | Small frequency step up or down converters using large frequency step synthesizers |
WO1996001006A1 (en) * | 1994-06-29 | 1996-01-11 | Honeywell Inc. | Spurious response rejecting mixer using spread spectrum techniques |
JP2737655B2 (ja) * | 1994-07-12 | 1998-04-08 | 双葉電子工業株式会社 | スペクトル拡散通信方式 |
US5956345A (en) * | 1996-09-13 | 1999-09-21 | Lucent Technologies Inc. | IS-95 compatible wideband communication scheme |
JP3651154B2 (ja) * | 1996-12-27 | 2005-05-25 | ソニー株式会社 | Pn符号発生回路及び無線システムの端末装置 |
KR100264862B1 (ko) * | 1997-07-31 | 2000-09-01 | 윤종용 | 대역확산에따른직교부호도약다중접속방식통신시스템의송수신장치및그방법 |
CN1211969C (zh) * | 1997-09-13 | 2005-07-20 | 三星电子株式会社 | 用于双正交码跳变多址通信***的设备和方法 |
EP0977351B1 (de) * | 1998-07-30 | 2004-02-18 | Motorola Semiconducteurs S.A. | Verfahren und Gerät zur Funkübertragung |
-
2001
- 2001-06-19 DE DE60140261T patent/DE60140261D1/de not_active Expired - Lifetime
- 2001-06-19 AT AT01944827T patent/ATE446613T1/de not_active IP Right Cessation
- 2001-06-19 AU AU2001267222A patent/AU2001267222A1/en not_active Abandoned
- 2001-06-19 EP EP01944827A patent/EP1314255B1/de not_active Expired - Lifetime
- 2001-06-19 CA CA002421173A patent/CA2421173A1/en not_active Abandoned
- 2001-06-19 WO PCT/CA2001/000876 patent/WO2002019548A2/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2002019548A3 (en) | 2002-12-27 |
EP1314255A2 (de) | 2003-05-28 |
AU2001267222A1 (en) | 2002-03-13 |
DE60140261D1 (de) | 2009-12-03 |
EP1314255B1 (de) | 2009-10-21 |
CA2421173A1 (en) | 2002-03-07 |
WO2002019548A2 (en) | 2002-03-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |