DE3779638D1 - Empfaenger mit parallelen signalstrecken. - Google Patents
Empfaenger mit parallelen signalstrecken.Info
- Publication number
- DE3779638D1 DE3779638D1 DE8787201668T DE3779638T DE3779638D1 DE 3779638 D1 DE3779638 D1 DE 3779638D1 DE 8787201668 T DE8787201668 T DE 8787201668T DE 3779638 T DE3779638 T DE 3779638T DE 3779638 D1 DE3779638 D1 DE 3779638D1
- Authority
- DE
- Germany
- Prior art keywords
- mixing
- inputs
- frequency
- outputs
- stages
- 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
- 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
- H04B1/26—Circuits for superheterodyne receivers
-
- 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
- H04B1/302—Circuits for homodyne or synchrodyne receivers for single sideband receivers
-
- 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
- H03D3/009—Compensating quadrature phase or amplitude imbalances
-
- 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
- H03D7/166—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature using two or more quadrature frequency translation stages
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Superheterodyne Receivers (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP87201668A EP0305604B1 (de) | 1987-09-03 | 1987-09-03 | Empfänger mit parallelen Signalstrecken |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3779638D1 true DE3779638D1 (de) | 1992-07-09 |
DE3779638T2 DE3779638T2 (de) | 1993-01-21 |
Family
ID=8197663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8787201668T Expired - Fee Related DE3779638T2 (de) | 1987-09-03 | 1987-09-03 | Empfaenger mit parallelen signalstrecken. |
Country Status (9)
Country | Link |
---|---|
US (1) | US4903331A (de) |
EP (1) | EP0305604B1 (de) |
JP (1) | JP2603700B2 (de) |
KR (1) | KR960015278B1 (de) |
AU (1) | AU618492B2 (de) |
CA (1) | CA1299249C (de) |
DE (1) | DE3779638T2 (de) |
DK (1) | DK483988A (de) |
FI (1) | FI86677C (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI924648A (fi) * | 1991-10-15 | 1993-04-16 | Siemens Ag | I ett schema utplacerade element foer korsmodulering eller demolulering |
CA2082244C (en) * | 1992-01-08 | 1996-09-03 | Samuel Rocco Paniccia Jr. | Two-handset cordless telephone system |
US5375258A (en) * | 1992-12-07 | 1994-12-20 | Motorola, Inc. | Circuit for generating signals in phase quadrature and associated method therefor |
JPH08125562A (ja) * | 1994-10-24 | 1996-05-17 | Pioneer Electron Corp | マルチキャリア変調信号受信装置 |
GB2296613A (en) * | 1994-12-21 | 1996-07-03 | Univ Bristol | Image-reject mixers |
JP3478313B2 (ja) * | 1995-01-25 | 2003-12-15 | ソニー株式会社 | 受信機 |
US5568520A (en) * | 1995-03-09 | 1996-10-22 | Ericsson Inc. | Slope drift and offset compensation in zero-IF receivers |
DE59600988D1 (de) * | 1995-07-18 | 1999-01-28 | Siemens Ag | Verfahren zur Erhöhung der Empfangsempfindlichkeit in Homodyn-Empfängern |
JPH09172384A (ja) * | 1995-12-19 | 1997-06-30 | Sony Corp | Amラジオ放送の受信装置 |
GB9720285D0 (en) * | 1997-09-25 | 1997-11-26 | Philips Electronics Nv | Improvements in or relating to phasing receivers |
JP2001508634A (ja) * | 1997-11-21 | 2001-06-26 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 直角位相信号を復調する復調ユニットおよび方法 |
JPH11205172A (ja) * | 1998-01-12 | 1999-07-30 | Alps Electric Co Ltd | 衛星放送受信機用チュ−ナ |
EP1080549A1 (de) * | 1998-05-27 | 2001-03-07 | Nokia Mobile Phones Ltd. | Einer empfänger und empfängsverfahren zur drahtlosen kommunikation |
US6397051B1 (en) * | 1998-12-21 | 2002-05-28 | At&T Corporation | Dual image-reject mixer receiver for multiple channel reception and processing |
US20030003891A1 (en) * | 2001-07-02 | 2003-01-02 | Nokia Corporation | Method to improve I/Q-amplitude balance and receiver quadrature channel performance |
JP2007235346A (ja) * | 2006-02-28 | 2007-09-13 | Icom Inc | 角度復調装置、位相補正装置、角度復調方法、位相補正方法及びプログラム |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2358288A1 (de) * | 1973-11-22 | 1975-06-05 | Standard Elektrik Lorenz Ag | Empfaenger fuer frequenzmodulierte hf-signale |
FR2368184A1 (fr) * | 1976-10-18 | 1978-05-12 | Ibm France | Systeme de synchronisation de porteuse pour demodulateur de phase coherent |
NL8301179A (nl) * | 1983-04-01 | 1984-11-01 | Philips Nv | Ontvanger voor hf-signalen voorzien van een paar parallelle signaalwegen. |
-
1987
- 1987-09-03 EP EP87201668A patent/EP0305604B1/de not_active Expired - Lifetime
- 1987-09-03 DE DE8787201668T patent/DE3779638T2/de not_active Expired - Fee Related
-
1988
- 1988-08-31 FI FI884018A patent/FI86677C/fi not_active IP Right Cessation
- 1988-08-31 CA CA000576152A patent/CA1299249C/en not_active Expired - Lifetime
- 1988-08-31 DK DK483988A patent/DK483988A/da not_active Application Discontinuation
- 1988-09-02 JP JP63218646A patent/JP2603700B2/ja not_active Expired - Lifetime
- 1988-09-02 AU AU21799/88A patent/AU618492B2/en not_active Ceased
- 1988-09-02 KR KR88011321A patent/KR960015278B1/ko not_active IP Right Cessation
- 1988-09-06 US US07/241,172 patent/US4903331A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4903331A (en) | 1990-02-20 |
CA1299249C (en) | 1992-04-21 |
DK483988D0 (da) | 1988-08-31 |
FI86677B (fi) | 1992-06-15 |
AU2179988A (en) | 1989-03-09 |
JP2603700B2 (ja) | 1997-04-23 |
AU618492B2 (en) | 1991-12-19 |
KR960015278B1 (en) | 1996-11-07 |
KR890006069A (ko) | 1989-05-18 |
DK483988A (da) | 1989-03-04 |
EP0305604B1 (de) | 1992-06-03 |
DE3779638T2 (de) | 1993-01-21 |
FI884018A0 (fi) | 1988-08-31 |
EP0305604A1 (de) | 1989-03-08 |
FI86677C (fi) | 1992-09-25 |
FI884018A (fi) | 1989-03-04 |
JPS6472625A (en) | 1989-03-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL |
|
8327 | Change in the person/name/address of the patent owner |
Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N |
|
8339 | Ceased/non-payment of the annual fee |