BR0109557A - Aparelho e método de controle de saìda de leitora rfid - Google Patents
Aparelho e método de controle de saìda de leitora rfidInfo
- Publication number
- BR0109557A BR0109557A BR0109557-9A BR0109557A BR0109557A BR 0109557 A BR0109557 A BR 0109557A BR 0109557 A BR0109557 A BR 0109557A BR 0109557 A BR0109557 A BR 0109557A
- Authority
- BR
- Brazil
- Prior art keywords
- rfid reader
- swr
- power level
- output power
- output control
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
Landscapes
- Engineering & Computer Science (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Radar Systems Or Details Thereof (AREA)
- Near-Field Transmission Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
"APARELHO E MéTODO DE CONTROLE DE SAìDA DE LEITORA RFID". São fornecidos um aparelho e um método para determinar se um objeto se encontra num raio máximo para leitura de um marcador RFID por uma leitora RFID e para controlar o nível de potência de saída RF da leitora RFID com base na SWR medida do sinal RF transmitido. O sinal de interrogação RFID é transmitido num nível de potência de saída pré-estabelecido. é feita uma comparação entre os sinais RF direto e o refletido para determinar a SWR. O nível de potência de saída do transmissor da leitora RFID é então ajustado em função da SWR, de maneira tal que o nível de potência de saída seja estabelecido alto, quando a SWR for alta, e estabelecido baixo, quando a SWR for baixa.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55923500A | 2000-04-26 | 2000-04-26 | |
| PCT/US2001/013078 WO2001082213A2 (en) | 2000-04-26 | 2001-04-23 | Rfid reader output control apparatus and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR0109557A true BR0109557A (pt) | 2003-06-03 |
Family
ID=24232832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR0109557-9A BR0109557A (pt) | 2000-04-26 | 2001-04-23 | Aparelho e método de controle de saìda de leitora rfid |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1277163B1 (pt) |
| JP (1) | JP4588963B2 (pt) |
| CN (1) | CN1423792A (pt) |
| AU (2) | AU2001253769B2 (pt) |
| BR (1) | BR0109557A (pt) |
| CA (1) | CA2403535A1 (pt) |
| DE (1) | DE60143518D1 (pt) |
| WO (1) | WO2001082213A2 (pt) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6681107B2 (en) | 2000-12-06 | 2004-01-20 | Xybernaut Corporation | System and method of accessing and recording messages at coordinate way points |
| US6377793B1 (en) | 2000-12-06 | 2002-04-23 | Xybernaut Corporation | System and method of accessing and recording messages at coordinate way points |
| KR100584328B1 (ko) * | 2003-10-07 | 2006-05-26 | 삼성전자주식회사 | 무선주파수 식별 태그가 결합된 이동 단말 회로 및 그이동 단말기에서의 무선 식별 방법 |
| US7215249B2 (en) | 2003-11-19 | 2007-05-08 | Alien Technology Corporation | Radio frequency identification reader |
| JP2006033143A (ja) * | 2004-07-13 | 2006-02-02 | Sharp Corp | 無線識別デバイスと無線識別デバイス処理装置 |
| DE602005016830D1 (de) * | 2004-11-19 | 2009-11-05 | Sensormatic Electronics Corp | Verfahren und hardware zur kommunikation mit rückstreuungs-rfid-lesern |
| US20060220793A1 (en) * | 2005-03-30 | 2006-10-05 | Samsung Electronics Co., Ltd. | Mobile radio frequency identification reader, portable terminal having the same, and FR transmission power setting method thereof |
| JP4636241B2 (ja) * | 2005-03-31 | 2011-02-23 | 日本電気株式会社 | 通信規制システムおよび通信規制方法 |
| EP1872308A2 (en) * | 2005-04-21 | 2008-01-02 | Skyetek, Inc | System and method for combining rfid tag memory |
| US7659819B2 (en) | 2005-04-21 | 2010-02-09 | Skyetek, Inc. | RFID reader operating system and associated architecture |
| EP1987468B1 (en) * | 2006-02-15 | 2018-05-23 | Tyco Fire & Security GmbH | Rf switched rfid multiplexer |
| DE102006040180A1 (de) | 2006-08-26 | 2008-03-13 | Nordenia Deutschland Gronau Gmbh | Verfahren zum kontaktlosen Testen von auf einer Materialbahn aufgebrachten Antennen |
| JP4257378B1 (ja) * | 2007-10-02 | 2009-04-22 | 株式会社神戸製鋼所 | Ｒｆｉｄタグの検知方法，ｒｆｉｄタグ検知システム |
| FR2990785B1 (fr) * | 2012-05-21 | 2014-05-02 | Schneider Electric Ind Sas | Systeme d'echange de donnees |
| CN103646227B (zh) * | 2013-12-30 | 2016-09-28 | 无锡清华信息科学与技术国家实验室物联网技术中心 | 无线射频识别系统中的高效节能识别方法 |
| JP6530309B2 (ja) * | 2015-12-01 | 2019-06-12 | トヨタ自動車株式会社 | 部品管理システム |
| GB202014150D0 (en) * | 2020-09-09 | 2020-10-21 | Ifpl Group Ltd | Contactless reader |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS647718A (en) * | 1987-06-29 | 1989-01-11 | Nec Corp | Transmitting power control circuit for radiocommunication equipment |
| JPH04142121A (ja) * | 1990-10-02 | 1992-05-15 | Sharp Corp | 送受信機 |
| JPH08191259A (ja) * | 1995-01-11 | 1996-07-23 | Sony Chem Corp | 非接触式ｉｃカードシステム用送受信装置 |
| US5864580A (en) * | 1996-08-26 | 1999-01-26 | Hid Corporation | Miniature wireless modem |
| JPH11146580A (ja) * | 1997-11-06 | 1999-05-28 | Kokusai Electric Co Ltd | リーダライタ |
| US6476708B1 (en) * | 1998-03-20 | 2002-11-05 | Hid Corporation | Detection of an RFID device by an RF reader unit operating in a reduced power state |
-
2001
- 2001-04-23 BR BR0109557-9A patent/BR0109557A/pt not_active Application Discontinuation
- 2001-04-23 DE DE60143518T patent/DE60143518D1/de not_active Expired - Lifetime
- 2001-04-23 CA CA002403535A patent/CA2403535A1/en not_active Abandoned
- 2001-04-23 JP JP2001579224A patent/JP4588963B2/ja not_active Expired - Fee Related
- 2001-04-23 CN CN 01808099 patent/CN1423792A/zh active Pending
- 2001-04-23 AU AU2001253769A patent/AU2001253769B2/en not_active Ceased
- 2001-04-23 WO PCT/US2001/013078 patent/WO2001082213A2/en not_active Ceased
- 2001-04-23 AU AU5376901A patent/AU5376901A/xx active Pending
- 2001-04-23 EP EP01927302A patent/EP1277163B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001082213A3 (en) | 2002-03-21 |
| CA2403535A1 (en) | 2001-11-01 |
| JP4588963B2 (ja) | 2010-12-01 |
| AU5376901A (en) | 2001-11-07 |
| JP2003532203A (ja) | 2003-10-28 |
| DE60143518D1 (de) | 2011-01-05 |
| AU2001253769B2 (en) | 2006-09-21 |
| EP1277163B1 (en) | 2010-11-24 |
| EP1277163A2 (en) | 2003-01-22 |
| WO2001082213A2 (en) | 2001-11-01 |
| CN1423792A (zh) | 2003-06-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B11A | Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing | ||
| B11Y | Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette] |