ES2161644A1 - Protocolo anti-colision con comunicacion unidireccional. - Google Patents
Protocolo anti-colision con comunicacion unidireccional.Info
- Publication number
- ES2161644A1 ES2161644A1 ES200001154A ES200001154A ES2161644A1 ES 2161644 A1 ES2161644 A1 ES 2161644A1 ES 200001154 A ES200001154 A ES 200001154A ES 200001154 A ES200001154 A ES 200001154A ES 2161644 A1 ES2161644 A1 ES 2161644A1
- Authority
- ES
- Spain
- Prior art keywords
- channel
- emitters
- confirmation
- medium
- collusion
- 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
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
El objeto de la invención es un protocolo de comunicaciones unidireccionales por canal común con contienda por el medio en el que no existe canal de retorno para confirmación de recepción ni mecanismo de escucha del canal por parte de los emisores. Descripción: N emisores y M receptores comparten el canal. Los emisores envían tramas con información con intervalos de tiempo marcados por una variable aleatoria. Todos los receptores reciben el mensaje que es procesado por el receptor determinado. Cuando los mensajes se pierden no existe mecanismo de detección ni recuperación de ningún tipo. Aplicaciones: Aviso del paso del emisor por la cercanía de un receptor. Por ejemplo para el pago automático y sin parada de peaje de autopista. Aviso de perdida de recepción. Para asegurar que objetos o personas no se alejen más allá de una distancia determinada del receptor. Etiquetas sin contactos. Para alarmas antirrobo de mercancía y facturación automática en cajas registradoras.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200001154A ES2161644B1 (es) | 2000-04-29 | 2000-04-29 | Protocolo anti-colision con comunicacion unidireccional. |
PCT/ES2001/000173 WO2002091758A1 (es) | 2000-04-29 | 2001-05-04 | Protocolo anti-colisión con comunicación unidireccional |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200001154A ES2161644B1 (es) | 2000-04-29 | 2000-04-29 | Protocolo anti-colision con comunicacion unidireccional. |
PCT/ES2001/000173 WO2002091758A1 (es) | 2000-04-29 | 2001-05-04 | Protocolo anti-colisión con comunicación unidireccional |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2161644A1 true ES2161644A1 (es) | 2001-12-01 |
ES2161644B1 ES2161644B1 (es) | 2003-04-16 |
Family
ID=8493430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES200001154A Expired - Lifetime ES2161644B1 (es) | 2000-04-29 | 2000-04-29 | Protocolo anti-colision con comunicacion unidireccional. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2161644B1 (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003060848A1 (es) * | 2002-01-21 | 2003-07-24 | Enrique Lecuona Saiz | Pequeñísimo equipo o sistema electrónico miniatura, portátil y de bolsillo para prevenir el olvido, extravío o perdida de objetos, personas y mascotas |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0702324A2 (en) * | 1994-09-12 | 1996-03-20 | International Business Machines Corporation | Multiple item radio frequency tag identification protocol |
US5539394A (en) * | 1994-03-16 | 1996-07-23 | International Business Machines Corporation | Time division multiplexed batch mode item identification system |
US5591951A (en) * | 1995-10-12 | 1997-01-07 | The Regents Of The University Of California | System and method for simultaneously collecting serial number information from numerous identity tags |
WO1998035327A1 (en) * | 1997-02-07 | 1998-08-13 | Checkpoint Systems, Inc. | Anticollision protocol for reading multiple rfid tags |
WO1999067735A1 (en) * | 1998-06-22 | 1999-12-29 | Haneda Humepipe Co., Limited | Anti-collision tag apparatus and system |
-
2000
- 2000-04-29 ES ES200001154A patent/ES2161644B1/es not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5539394A (en) * | 1994-03-16 | 1996-07-23 | International Business Machines Corporation | Time division multiplexed batch mode item identification system |
EP0702324A2 (en) * | 1994-09-12 | 1996-03-20 | International Business Machines Corporation | Multiple item radio frequency tag identification protocol |
US5591951A (en) * | 1995-10-12 | 1997-01-07 | The Regents Of The University Of California | System and method for simultaneously collecting serial number information from numerous identity tags |
WO1998035327A1 (en) * | 1997-02-07 | 1998-08-13 | Checkpoint Systems, Inc. | Anticollision protocol for reading multiple rfid tags |
WO1999067735A1 (en) * | 1998-06-22 | 1999-12-29 | Haneda Humepipe Co., Limited | Anti-collision tag apparatus and system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003060848A1 (es) * | 2002-01-21 | 2003-07-24 | Enrique Lecuona Saiz | Pequeñísimo equipo o sistema electrónico miniatura, portátil y de bolsillo para prevenir el olvido, extravío o perdida de objetos, personas y mascotas |
Also Published As
Publication number | Publication date |
---|---|
ES2161644B1 (es) | 2003-04-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 20011201 Kind code of ref document: A1 Effective date: 20011201 |
|
FG2A | Definitive protection |
Ref document number: 2161644B1 Country of ref document: ES |
|
FA2A | Application withdrawn |
Effective date: 20050601 |