FR2221057A5 - Reading machine for blind persons - converts signals denoting alpha-numeric characters into audio signals - Google Patents

Reading machine for blind persons - converts signals denoting alpha-numeric characters into audio signals

Info

Publication number
FR2221057A5
FR2221057A5 FR7308028A FR7308028A FR2221057A5 FR 2221057 A5 FR2221057 A5 FR 2221057A5 FR 7308028 A FR7308028 A FR 7308028A FR 7308028 A FR7308028 A FR 7308028A FR 2221057 A5 FR2221057 A5 FR 2221057A5
Authority
FR
France
Prior art keywords
alpha
letter
numeric characters
reading machine
blind persons
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
Application number
FR7308028A
Other languages
French (fr)
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.)
MESSAGE HENRI
Original Assignee
MESSAGE HENRI
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 MESSAGE HENRI filed Critical MESSAGE HENRI
Priority to FR7308028A priority Critical patent/FR2221057A5/en
Application granted granted Critical
Publication of FR2221057A5 publication Critical patent/FR2221057A5/en
Expired 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
    • G09B21/006—Teaching or communicating with blind persons using audible presentation of the information

Abstract

The machine detects each character of a written text using photo-electric cells, and the signals obtained are used to control a recording disc carrying parallel tracks each representing one letter of the alphabet. The characters are enlarged before detection. This is performed by focussing them onto a grid defined by the cells. Each cell produces a note of a characteristic pitch when it falls on part of a letter, so that each letter or normal typescript produces a characteristic chord. The text is recorded using the reading head and the record may be played back when required.
FR7308028A 1973-03-05 1973-03-05 Reading machine for blind persons - converts signals denoting alpha-numeric characters into audio signals Expired FR2221057A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7308028A FR2221057A5 (en) 1973-03-05 1973-03-05 Reading machine for blind persons - converts signals denoting alpha-numeric characters into audio signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7308028A FR2221057A5 (en) 1973-03-05 1973-03-05 Reading machine for blind persons - converts signals denoting alpha-numeric characters into audio signals

Publications (1)

Publication Number Publication Date
FR2221057A5 true FR2221057A5 (en) 1974-10-04

Family

ID=9115874

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7308028A Expired FR2221057A5 (en) 1973-03-05 1973-03-05 Reading machine for blind persons - converts signals denoting alpha-numeric characters into audio signals

Country Status (1)

Country Link
FR (1) FR2221057A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1369839A1 (en) * 2002-06-03 2003-12-10 Swisscom Mobile AG Processor based method and system for the production of an audio image out of graphical data
GB2508673A (en) * 2012-12-06 2014-06-11 David John Webster Audible presentation of Braille characters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1369839A1 (en) * 2002-06-03 2003-12-10 Swisscom Mobile AG Processor based method and system for the production of an audio image out of graphical data
GB2508673A (en) * 2012-12-06 2014-06-11 David John Webster Audible presentation of Braille characters

Similar Documents

Publication Publication Date Title
KR880013157A (en) Information signal recording system
KR890001465B1 (en) Method of recording a digital information signal on a record carrier
JPS5250132A (en) Information processing control unit
JPS51138410A (en) Method of recording and reproducing signal
GB1337163A (en) Dictating and transcribing apparatus
ES8501152A1 (en) Method of recording a digital information signal on a record carrier, record carrier provided with such an information signal, and read/write apparatus for such a record carrier.
US3996586A (en) Magnetic tape pulse width to digital convertor
FR2221057A5 (en) Reading machine for blind persons - converts signals denoting alpha-numeric characters into audio signals
KR860000295B1 (en) Reproducting system for stored digital information in a record media
AT328002B (en) DEVICE FOR READING INFORMATION, E.G. PICTURE AND / OR SOUND INFORMATION RECORDED IN AT LEAST ONE TRACK ON A RECORDING MEDIUM
JPS5492146A (en) Information retrieval unit
JPS6457409A (en) Floppy disk device
EP0374907A3 (en) Method for recording and/or reproducing a signal
JPS5473605A (en) Azimuth recording method using double film
SU546007A1 (en) The method of magnetic recording and playback of digital information
JPS53110510A (en) Data recording method for recording medium featuring plural fixed length recording units
JPS5413316A (en) Method for recording information signals in original of grooveless information recording medium disc
JPS54100711A (en) Recording current optimizing device
JPS57200916A (en) Recording and reproducing device for digital signal
JPS5745718A (en) Readout circuit for magnetic disc device
JPS6414779A (en) Storage device
CA1022676A (en) Apparatus for reading a record carrier in which information, for example, video and/or audio information, is recorded in at least one track
JPS51142221A (en) Information reproducing device
JPS52132838A (en) Laser recording system
JPS5715266A (en) Signal recording system for position retrieval of rotary information recording medium

Legal Events

Date Code Title Description
ST Notification of lapse