ES2184602B1 - Escaner para lectura de escritura en sistema "braille" por ultrasonidos. - Google Patents

Escaner para lectura de escritura en sistema "braille" por ultrasonidos.

Info

Publication number
ES2184602B1
ES2184602B1 ES200100620A ES200100620A ES2184602B1 ES 2184602 B1 ES2184602 B1 ES 2184602B1 ES 200100620 A ES200100620 A ES 200100620A ES 200100620 A ES200100620 A ES 200100620A ES 2184602 B1 ES2184602 B1 ES 2184602B1
Authority
ES
Spain
Prior art keywords
braille
point
scanner
amplitude
ultrasounds
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 - Fee Related
Application number
ES200100620A
Other languages
English (en)
Other versions
ES2184602A1 (es
Inventor
Tomas E. Gomez Alvarez-Arenas
Francisco Montero De Espinosa
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.)
Consejo Superior de Investigaciones Cientificas CSIC
Original Assignee
Consejo Superior de Investigaciones Cientificas CSIC
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 Consejo Superior de Investigaciones Cientificas CSIC filed Critical Consejo Superior de Investigaciones Cientificas CSIC
Priority to ES200100620A priority Critical patent/ES2184602B1/es
Priority to PCT/ES2002/000121 priority patent/WO2002075247A1/es
Publication of ES2184602A1 publication Critical patent/ES2184602A1/es
Application granted granted Critical
Publication of ES2184602B1 publication Critical patent/ES2184602B1/es
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B21/00—Teaching, or communicating with, the blind, deaf or mute
    • G09B21/001—Teaching or communicating with blind persons
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
    • G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
    • 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/015—Attenuation, scattering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/26—Scanned objects
    • G01N2291/263—Surfaces
    • G01N2291/2632—Surfaces flat

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Character Input (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

Escáner para lectura de escritura en sistema "Braille" por ultrasonidos. El escáner basa su funcionamiento en la utilización de transductores piezoeléctricos para emitir y recibir señales ultrasónicas al aire y un sistema de movimiento para insonificar punto a punto la superficie del material sobre el que se ha grabado el texto en Braille y recoger, simultáneamente, la amplitud de la señal reflejada y las coordenadas de dicho punto. La presencia de realces, depresiones, o simplemente zonas planas produce variaciones en la amplitud de la señal reflejada que convenientemente recogida según el haz ultrasónico recorre la superficie del material en el que se ha grabado el texto en Braille, permite digitalizar la información contenida en el mismo.
ES200100620A 2001-03-16 2001-03-16 Escaner para lectura de escritura en sistema "braille" por ultrasonidos. Expired - Fee Related ES2184602B1 (es)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES200100620A ES2184602B1 (es) 2001-03-16 2001-03-16 Escaner para lectura de escritura en sistema "braille" por ultrasonidos.
PCT/ES2002/000121 WO2002075247A1 (es) 2001-03-16 2002-03-14 Escáner para lectura de escritura en sistema 'braille' por ultrasonidos

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200100620A ES2184602B1 (es) 2001-03-16 2001-03-16 Escaner para lectura de escritura en sistema "braille" por ultrasonidos.

Publications (2)

Publication Number Publication Date
ES2184602A1 ES2184602A1 (es) 2003-04-01
ES2184602B1 true ES2184602B1 (es) 2004-10-16

Family

ID=8497117

Family Applications (1)

Application Number Title Priority Date Filing Date
ES200100620A Expired - Fee Related ES2184602B1 (es) 2001-03-16 2001-03-16 Escaner para lectura de escritura en sistema "braille" por ultrasonidos.

Country Status (2)

Country Link
ES (1) ES2184602B1 (es)
WO (1) WO2002075247A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9875670B2 (en) 2010-07-08 2018-01-23 King Abdulaziz City For Science And Technology Braille copy machine using image processing techniques
AU2016430712B2 (en) 2016-11-25 2022-08-25 Auto Drive Solutions S.L. Encoded surfaces that are read by three-dimensional radar imaging systems

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0045456A2 (de) * 1980-08-02 1982-02-10 Heribert Ballhaus Oberflächenabtastgerät
US4646573A (en) * 1985-04-26 1987-03-03 International Business Machines Corporation Scanning acoustic microscope

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0045456A2 (de) * 1980-08-02 1982-02-10 Heribert Ballhaus Oberflächenabtastgerät
US4646573A (en) * 1985-04-26 1987-03-03 International Business Machines Corporation Scanning acoustic microscope

Also Published As

Publication number Publication date
WO2002075247A1 (es) 2002-09-26
ES2184602A1 (es) 2003-04-01

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