ES2084669T3 - Sistema de alta velocidad para leer y escribir datos en etiquetas remotas. - Google Patents

Sistema de alta velocidad para leer y escribir datos en etiquetas remotas.

Info

Publication number
ES2084669T3
ES2084669T3 ES90312097T ES90312097T ES2084669T3 ES 2084669 T3 ES2084669 T3 ES 2084669T3 ES 90312097 T ES90312097 T ES 90312097T ES 90312097 T ES90312097 T ES 90312097T ES 2084669 T3 ES2084669 T3 ES 2084669T3
Authority
ES
Spain
Prior art keywords
frequency
sub
label
period
signal
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
Application number
ES90312097T
Other languages
English (en)
Inventor
Peter L Hendrick
Donald F Speirs
Michael A Wolf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amtech Systems Inc
Original Assignee
Amtech Systems Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Amtech Systems Inc filed Critical Amtech Systems Inc
Application granted granted Critical
Publication of ES2084669T3 publication Critical patent/ES2084669T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B1/59—Responders; Transponders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/04—Indicating or recording train identities
    • B61L25/048—Indicating or recording train identities using programmable tags
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/82—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/82—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted
    • G01S13/825—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted with exchange of information between interrogator and responder
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/40—Data acquisition and logging
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Data Mining & Analysis (AREA)
  • Databases & Information Systems (AREA)
  • Mathematical Physics (AREA)
  • Software Systems (AREA)
  • Signal Processing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

LA INVENCION DE ESTA MATERIA SE REFIERE A UN SISTEMA PARA LEER Y ESCRIBIR DATOS DESDE Y EN ETIQUETAS ELECTRONICAS QUE PUEDEN ESTAR ASOCIADAS CON OBJETOS QUE SE MUEVEN CON RESPECTO A UN INTERROGADOR, O SE PUEDEN COLOCAR EN POSICIONES FIJAS EN EL CAMINO DE UN INTERROGADOR EN MOVIMIENTO. EL INTERROGADOR, QUE ESTA ESTACIONARIO SI LA TARJETA ESTA EN MOVIMIENTO, ENVIA UNA SEÑAL RF CONTINUA PARA LA ETIQUETA A DISTANCIA. LA ETIQUETA DISTRIBUYE HACIA ATRAS-MODULA LA SEÑAL RF RECIBIDA CON DATOS ALMACENADOS EN LA ETIQUETA DE FORMA TEMPORAL O PERMANENTE, INCLUIDO, POR EJEMPLO, DATOS ASOCIADOS CON EL OBJETO AL QUE ESTA PEGADA LA ETIQUETA, POR EJEMPLO, SU IDENTIDAD O CONTENIDOS. EL SISTEMA DE ESTA INVENCION EMPLEA UNA TECNICA DE CODIFICACION MUY EFICAZ PARA LOS DATOS QUE SE DISTRIBUYE HACIA ATRAS-MODULA MEDIANTE LA ETIQUETA Y SE RECIBE MEDIANTE EL INTERROGADOR. LAS SEÑALES DISTRIBUIDAS HACIA ATRAS-MODULADAS ESTAN COMPUESTOS DE SEÑALES DE LA PRIMERA Y SEGUNDA FRECUENCIA F SUB 1 Y 2F SUB 1, RESPECTIVAMENTE, DONDE LA SEGUNDA FRECUENCIA 2F SUB 1 ES DOS VECES LA PRIMERA FRECUENCIA F SUB 1, Y DONDE UNO DE LOS DOS BITS BINARIOS ONE Y ZERO SE REPRESENTA MEDIANTE UN SEMIPERIODO DE UNA SEÑAL DE LA PRIMERA FRECUENCIA SEGUIDA DE UN PERIODO DE LA SEGUNDA FRECUENCIA, Y EL OTRO DE LOS DOS BITS BINARIOS SE REPRESENTA MEDIANTE UN PERIODO DE UNA SEÑAL DE LA SEGUNDA FRECUENCIA SEGUIDA DE UN SEMIPERIODO DE UNA SEÑAL DE LA PRIMERA FRECUENCIA. LAS SEÑALES CONTIENEN TAMBIEN MARCADORES DE ENCUADRE COMPUESTOS DE CINCO PERIODOS DE FRECUENCIA 2F SUB 1 SEGUIDOS DE UN SEMIPERIODO DE FRECUENCIA F SUB 1. LAS SEÑALES WRITE-BY-RF ENVIADAS A LA ETIQUETA MEDIANTE EL INTERROGADOR ESTAN COMPUESTAS DE PULSOS DE TRES DIFERENTES FRECUENCIAS, UNA DE ELLAS LA FRECUENCIA F SUB 2, LA SIGUIENTE, LA FRECUENCIA 2F SUB 2 Y LA TERCERA, 4F SUB 2. ZERO O ONE PUEDEN SER UN PERIODO DE PULSOS DE 2F SUB 2 O 4F SUB 2 SIENDO EL OTRO BIT LA OTRA FRECUENCIA, Y SIENDO EL MARCADOR DE ENCUADRE UN PERIODO DE FRECUENCIA F SUB 2. LA SEÑAL DE MODE ES CUATRO PERIODOS DE FRECUENCIA F SUB 2.
ES90312097T 1990-02-06 1990-11-05 Sistema de alta velocidad para leer y escribir datos en etiquetas remotas. Expired - Lifetime ES2084669T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/475,729 US5055659A (en) 1990-02-06 1990-02-06 High speed system for reading and writing data from and into remote tags

Publications (1)

Publication Number Publication Date
ES2084669T3 true ES2084669T3 (es) 1996-05-16

Family

ID=23888863

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90312097T Expired - Lifetime ES2084669T3 (es) 1990-02-06 1990-11-05 Sistema de alta velocidad para leer y escribir datos en etiquetas remotas.

Country Status (9)

Country Link
US (1) US5055659A (es)
EP (1) EP0441031B1 (es)
JP (1) JPH07115383A (es)
KR (1) KR0160980B1 (es)
AU (1) AU625483B2 (es)
CA (1) CA2030703C (es)
DE (1) DE69025162T2 (es)
ES (1) ES2084669T3 (es)
IL (1) IL96322A0 (es)

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US5055659A (en) 1991-10-08
KR910015864A (ko) 1991-09-30
DE69025162T2 (de) 1996-12-12
EP0441031A3 (en) 1992-07-01
CA2030703C (en) 2000-01-25
EP0441031B1 (en) 1996-01-31
AU625483B2 (en) 1992-07-09
JPH07115383A (ja) 1995-05-02
AU6483190A (en) 1991-08-08
EP0441031A2 (en) 1991-08-14
CA2030703A1 (en) 1991-08-07
DE69025162D1 (de) 1996-03-14
KR0160980B1 (ko) 1999-03-20
IL96322A0 (en) 1991-08-16

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