FR2390026A1 - - Google Patents
Info
- Publication number
- FR2390026A1 FR2390026A1 FR7809120A FR7809120A FR2390026A1 FR 2390026 A1 FR2390026 A1 FR 2390026A1 FR 7809120 A FR7809120 A FR 7809120A FR 7809120 A FR7809120 A FR 7809120A FR 2390026 A1 FR2390026 A1 FR 2390026A1
- Authority
- FR
- France
- Prior art keywords
- antenna
- switching
- receiver
- signal
- logic
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/10—Polarisation diversity; Directional diversity
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Radio Transmission System (AREA)
- Noise Elimination (AREA)
- Details Of Aerials (AREA)
Abstract
a. Antenne multiple à commutation, comportant une logique commandant séquentiellement un commutateur d'antenne sur un récepteur, la logique comportant un détecteur traitant le signal du récepteur et détectant le signal de l'antenne pour commander la commutation de l'antenne de façon prédéterminée. b. Antenne caractérisée en ce qu'elle comporte un moyen d'interdiction du fonctionnement du détecteur pendant un intervalle prédéterminé à la suite de chaque commutation d'antenne pour supprimer la détection des réponses erratiques ainsi créées.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/792,942 US4170759A (en) | 1977-05-02 | 1977-05-02 | Antenna sampling system |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2390026A1 true FR2390026A1 (fr) | 1978-12-01 |
FR2390026B1 FR2390026B1 (fr) | 1984-07-13 |
Family
ID=25158563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7809120A Expired FR2390026B1 (fr) | 1977-05-02 | 1978-03-29 |
Country Status (10)
Country | Link |
---|---|
US (1) | US4170759A (fr) |
JP (1) | JPS6051818B2 (fr) |
AU (1) | AU511262B2 (fr) |
CA (1) | CA1110329A (fr) |
DE (1) | DE2815665A1 (fr) |
DK (1) | DK187478A (fr) |
FR (1) | FR2390026B1 (fr) |
GB (1) | GB1571673A (fr) |
NL (1) | NL7804569A (fr) |
SE (1) | SE423855B (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2494920A1 (fr) * | 1980-11-25 | 1982-05-28 | Rca Corp | Appareil d'orientation automatique d'une antenne de television orientable electriquement |
EP0567459A1 (fr) * | 1991-01-15 | 1993-11-03 | Motorola, Inc. | Selection de diagramme d'antenne permettant d'optimiser les communications et d'eviter l'exposition au rayonnement hf |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56119130A (en) * | 1980-01-22 | 1981-09-18 | Nippon Kankoushi Kogyo Kk | Manufacture of easily corrigible screen printing plate |
US4499606A (en) * | 1982-12-27 | 1985-02-12 | Sri International | Reception enhancement in mobile FM broadcast receivers and the like |
US4566133A (en) * | 1982-12-27 | 1986-01-21 | Commtech International | Switched diversity method and apparatus for FM receivers |
US4626858A (en) * | 1983-04-01 | 1986-12-02 | Kentron International, Inc. | Antenna system |
US4696058A (en) * | 1983-12-06 | 1987-09-22 | Matsushita Electric Industrial Co., Ltd. | Diversity receiver |
US4983988A (en) * | 1988-11-21 | 1991-01-08 | E-Systems, Inc. | Antenna with enhanced gain |
US5021801A (en) * | 1989-09-05 | 1991-06-04 | Motorola, Inc. | Antenna switching system |
JP3195926B2 (ja) * | 1991-02-08 | 2001-08-06 | フバ オートモティブ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディッド ゲセルシャフト | 自動車テレビジョン信号受信における受信妨害を除去するためのアンテナダイバーシチ受信装置 |
DE69433176T2 (de) * | 1993-05-27 | 2004-04-29 | Griffith University, Nathan | Antennen für tragbare kommunikationsgeräte |
US5684491A (en) * | 1995-01-27 | 1997-11-04 | Hazeltine Corporation | High gain antenna systems for cellular use |
DE19510534B4 (de) * | 1995-03-23 | 2004-01-29 | Siemens Ag | Empfangs- und Sendeverfahren für ein System zur nicht leitungsgebundenen Duplexübertragung |
US6288682B1 (en) | 1996-03-14 | 2001-09-11 | Griffith University | Directional antenna assembly |
US6079367A (en) * | 1997-10-10 | 2000-06-27 | Dogwatch, Inc. | Animal training apparatus and method |
CA2255516A1 (fr) * | 1998-12-11 | 2000-06-11 | Telecommunications Research Laboratories | Antenne multiports et methode de traitement de signaux se propageant par trajets multiples captes par une antenne multiports |
US20010045914A1 (en) * | 2000-02-25 | 2001-11-29 | Bunker Philip Alan | Device and system for providing a wireless high-speed communications network |
DE60030954T2 (de) * | 2000-04-25 | 2007-02-01 | Siemens Ag | Empfänger mit Antennendiversity |
US7430440B2 (en) * | 2004-02-06 | 2008-09-30 | Interdigital Technology Corporation | Method and apparatus for reducing transient impacts of beam switching in a switched beam antenna system |
US7835701B2 (en) * | 2004-03-29 | 2010-11-16 | Edgewater Computer Systems, Inc. | Detecting and eliminating spurious energy in communications systems via multi-channel processing |
FR2885750A1 (fr) * | 2005-05-13 | 2006-11-17 | Thomson Licensing Sa | Methode de positionnement des antennes d'un systeme de transmission de donnees |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3055002A (en) * | 1960-10-06 | 1962-09-18 | Servo Corp Of America | Gated integrating circuit |
US3537011A (en) * | 1966-11-24 | 1970-10-27 | Antenna switching arrangement for continuous sequential sampling and selection of best signal | |
US3987446A (en) * | 1972-10-27 | 1976-10-19 | General Instrument Corporation | Direction finding apparatus |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2594087A (en) * | 1949-05-20 | 1952-04-22 | Bell Telephone Labor Inc | Radio receiver selection system |
US3329901A (en) * | 1963-06-03 | 1967-07-04 | Itt | Selector systems for locking onto antenna receiving usable signal strength |
US3475686A (en) * | 1966-05-17 | 1969-10-28 | Lockheed Aircraft Corp | Method and apparatus for selection of antenna providing acceptable signal |
-
1977
- 1977-05-02 US US05/792,942 patent/US4170759A/en not_active Expired - Lifetime
-
1978
- 1978-03-14 GB GB10068/78A patent/GB1571673A/en not_active Expired
- 1978-03-20 CA CA299,314A patent/CA1110329A/fr not_active Expired
- 1978-03-29 FR FR7809120A patent/FR2390026B1/fr not_active Expired
- 1978-04-11 DE DE19782815665 patent/DE2815665A1/de not_active Withdrawn
- 1978-04-21 SE SE7804575A patent/SE423855B/sv not_active IP Right Cessation
- 1978-04-26 AU AU35439/78A patent/AU511262B2/en not_active Expired
- 1978-04-27 NL NL7804569A patent/NL7804569A/xx not_active Application Discontinuation
- 1978-05-01 DK DK187478A patent/DK187478A/da not_active Application Discontinuation
- 1978-05-01 JP JP53052593A patent/JPS6051818B2/ja not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3055002A (en) * | 1960-10-06 | 1962-09-18 | Servo Corp Of America | Gated integrating circuit |
US3537011A (en) * | 1966-11-24 | 1970-10-27 | Antenna switching arrangement for continuous sequential sampling and selection of best signal | |
US3987446A (en) * | 1972-10-27 | 1976-10-19 | General Instrument Corporation | Direction finding apparatus |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2494920A1 (fr) * | 1980-11-25 | 1982-05-28 | Rca Corp | Appareil d'orientation automatique d'une antenne de television orientable electriquement |
EP0567459A1 (fr) * | 1991-01-15 | 1993-11-03 | Motorola, Inc. | Selection de diagramme d'antenne permettant d'optimiser les communications et d'eviter l'exposition au rayonnement hf |
EP0567459A4 (en) * | 1991-01-15 | 1994-08-24 | Motorola Inc | Antenna pattern selection for optimized communications and avoidance of people |
Also Published As
Publication number | Publication date |
---|---|
GB1571673A (en) | 1980-07-16 |
SE7804575L (sv) | 1978-11-03 |
CA1110329A (fr) | 1981-10-06 |
JPS6051818B2 (ja) | 1985-11-15 |
FR2390026B1 (fr) | 1984-07-13 |
NL7804569A (nl) | 1978-11-06 |
DE2815665A1 (de) | 1978-11-09 |
US4170759A (en) | 1979-10-09 |
DK187478A (da) | 1978-11-03 |
AU3543978A (en) | 1979-11-22 |
JPS549521A (en) | 1979-01-24 |
AU511262B2 (en) | 1980-08-07 |
SE423855B (sv) | 1982-06-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |