NL7804569A - Schakelstelsel voor een antenneinrichting. - Google Patents
Schakelstelsel voor een antenneinrichting.Info
- Publication number
- NL7804569A NL7804569A NL7804569A NL7804569A NL7804569A NL 7804569 A NL7804569 A NL 7804569A NL 7804569 A NL7804569 A NL 7804569A NL 7804569 A NL7804569 A NL 7804569A NL 7804569 A NL7804569 A NL 7804569A
- Authority
- NL
- Netherlands
- Prior art keywords
- antenna device
- switching system
- switching
- antenna
- Prior art date
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)
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 (1)
Publication Number | Publication Date |
---|---|
NL7804569A true NL7804569A (nl) | 1978-11-06 |
Family
ID=25158563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7804569A NL7804569A (nl) | 1977-05-02 | 1978-04-27 | Schakelstelsel voor een antenneinrichting. |
Country Status (10)
Country | Link |
---|---|
US (1) | US4170759A (nl) |
JP (1) | JPS6051818B2 (nl) |
AU (1) | AU511262B2 (nl) |
CA (1) | CA1110329A (nl) |
DE (1) | DE2815665A1 (nl) |
DK (1) | DK187478A (nl) |
FR (1) | FR2390026B1 (nl) |
GB (1) | GB1571673A (nl) |
NL (1) | NL7804569A (nl) |
SE (1) | SE423855B (nl) |
Families Citing this family (21)
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 |
US4349840A (en) * | 1980-11-25 | 1982-09-14 | Rca Corporation | Apparatus for automatically steering an electrically steerable television antenna |
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 |
WO1992013398A1 (en) * | 1991-01-15 | 1992-08-06 | Motorola, Inc. | Antenna pattern selection for optimized communications and avoidance of people |
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 |
EP0954050A1 (en) * | 1993-05-27 | 1999-11-03 | Griffith University | Antennas for use in portable communications devices |
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 (en) * | 1998-12-11 | 2000-06-11 | Telecommunications Research Laboratories | Multiport antenna and method of processing multipath signals received by a multiport antenna |
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 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2594087A (en) * | 1949-05-20 | 1952-04-22 | Bell Telephone Labor Inc | Radio receiver selection system |
US3055002A (en) * | 1960-10-06 | 1962-09-18 | Servo Corp Of America | Gated integrating circuit |
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 |
FR1508349A (fr) * | 1966-11-24 | 1968-01-05 | Lannionaise D Electronique Soc | Dispositif automatique de commutation d'antenne |
US3987446A (en) * | 1972-10-27 | 1976-10-19 | General Instrument Corporation | Direction finding apparatus |
-
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/en 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/nl not_active Application Discontinuation
- 1978-05-01 JP JP53052593A patent/JPS6051818B2/ja not_active Expired
- 1978-05-01 DK DK187478A patent/DK187478A/da not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
GB1571673A (en) | 1980-07-16 |
FR2390026A1 (nl) | 1978-12-01 |
AU511262B2 (en) | 1980-08-07 |
US4170759A (en) | 1979-10-09 |
DK187478A (da) | 1978-11-03 |
DE2815665A1 (de) | 1978-11-09 |
JPS549521A (en) | 1979-01-24 |
CA1110329A (en) | 1981-10-06 |
AU3543978A (en) | 1979-11-22 |
FR2390026B1 (nl) | 1984-07-13 |
SE423855B (sv) | 1982-06-07 |
JPS6051818B2 (ja) | 1985-11-15 |
SE7804575L (sv) | 1978-11-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A85 | Still pending on 85-01-01 | ||
BA | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
BV | The patent application has lapsed |