GB2246273A - Adapting teletext information for the blind - Google Patents

Adapting teletext information for the blind Download PDF

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Publication number
GB2246273A
GB2246273A GB9011776A GB9011776A GB2246273A GB 2246273 A GB2246273 A GB 2246273A GB 9011776 A GB9011776 A GB 9011776A GB 9011776 A GB9011776 A GB 9011776A GB 2246273 A GB2246273 A GB 2246273A
Authority
GB
United Kingdom
Prior art keywords
teletext
output transducer
controller
adapting
national
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.)
Withdrawn
Application number
GB9011776A
Other versions
GB9011776D0 (en
Inventor
David Glyn Farr
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.)
MICROSYS CONSULTANTS Ltd
Original Assignee
MICROSYS CONSULTANTS Ltd
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 MICROSYS CONSULTANTS Ltd filed Critical MICROSYS CONSULTANTS Ltd
Priority to GB9011776A priority Critical patent/GB2246273A/en
Publication of GB9011776D0 publication Critical patent/GB9011776D0/en
Publication of GB2246273A publication Critical patent/GB2246273A/en
Withdrawn legal-status Critical Current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
    • G09B21/003—Teaching or communicating with blind persons using tactile presentation of the information, e.g. Braille displays
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H04N7/0882—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of character code signals, e.g. for teletext

Abstract

Textual information broadcast as part of a national teletext service is transformed into a form more readily understood by a visually handicapped person, e.g. Braille or speech using a speech synthesiser. <IMAGE>

Description

ADAPTING TEXTUAL INFORMATION This invention relates to a system for adapting textual information broadcast as part of a national teletext service for access by the visually handicapped.
In the United Kingdom at the present time two major broadcasters transmit teletext information as a service along with audio and visual signals, namely the BBC with the CEEFAX service and ITV with the ORACLE service.
The service provided by teletext is quite widespread and varied, with pages of information being made available on subjects such as the national newsj local weather, recipes, share prices and the like. The teletext service also allows pictures to be built up and displayed on television screens.
According to our invention a system for adapting textual information broadcast as part of a national teletext service for access by the visually handicapped comprises a controller adapted to convert teletext information taken as an input to a format which can be used to drive an output transducer directly.
This enables a visually handicapped person to "read" the teletext information from the output transducer.
Where used herein the term "read" is intended to cover the whole human aspect of understanding information that is external to the body.
Conveniently the controller is adapted to accept teletext information from either a standard or custom built receiver circuit and a decoder circuit and to accept commands from an input device, suitably a keyboard, and the controller is then adapted to issue control signals to the output transducer and also back to the receiver and decoder circuits.
The output transducer may comprise any convenient device, suitably a speech synthesiser, a Braille printer, or a Braille pad.
One embodiment of our invention is illustrated in single Figure of the accompanying drawings which is a layout of a system for adapting textual information broadcast as part of a national teletext service for access by the visually handicapped.
In the system illustrated in the drawings television signals are received via aerial (A) by receiving circuits (B). Teletext information is extracted from the received signals by the decoder circuitry (C) and passed to a controller (D). The purpose of the controller, which will normally be microprocessor based, is to convert the teletext information into a format that can directly be used by an output transducer (E). An input device (F), which will generally be a keyboard or keypad, allows commands to be passed on to the controller (D). The visually handicapped person can "read" the teletext information from the output transducer (E) in accordance with commands from the input device (F).
The output transducer (E) may comprise a speech synthesiser, a Braille printer, or a Braille pad.
When the transducer comprises a speech synthesiser, it is preferably of the unlimited vocabulary type and will allow text to be spoken aloud in a readily understandable manner.
When the transducer comprises a Braille printer it is arranged to print the textual information on paper in the Braille format. This enables the paper to be read by touch.
When the transducer comprises a Braille pad such an electro-mechanical device presents the textual information one character at a time. Each character is in the Braille format and is presented as a cluster of raised 'pips' on a flat pad.
Commands that can be given to the controller (D) will include such items as the teletext page that is to be selected, display commands, e.g. 'freeze pages', frequency of character presentation, volume, channel selection and so on.
The whole system can be housed together in one container or as separate units.

Claims (8)

1. A system for adapting textual information broadcast as part of a national teletext service for access by the visually handicapped comprising a controller adapted to convert teletext information taken as input to a format which can be used to drive an output transducer directly.
2. A system according to claim 1, in which the controller is adapted to accept teletext information from either a standard or custom built receiver circuit and a decoder circuit and to accept commands from an input device, and the controller is then adapted to issue control signals to the output transducer and also back to the receiver and decoder circuits.
3. A system according to claim 2, in which the input device is a keyboard or keypad.
4. A system according to any preceding claim, in which the output transducer comprises a speech synthesiser.
5. A system according to claim 4, in which the speech synthesiser is of the unlimited vocabulary type.
6. A system according to any of claims 1 to 3, in which the output transducer comprises a Braille printer or a Braille pad.
7. A system according to any previous claim, in which the system is housed in one container or as separate units.
8. A system for adapting textual information broadcast as part of a national teletext service for access by the visually handicapped substantially as described herein with reference to and as illustrated in the accompanying drawings.
GB9011776A 1990-05-25 1990-05-25 Adapting teletext information for the blind Withdrawn GB2246273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9011776A GB2246273A (en) 1990-05-25 1990-05-25 Adapting teletext information for the blind

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9011776A GB2246273A (en) 1990-05-25 1990-05-25 Adapting teletext information for the blind

Publications (2)

Publication Number Publication Date
GB9011776D0 GB9011776D0 (en) 1990-07-18
GB2246273A true GB2246273A (en) 1992-01-22

Family

ID=10676585

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9011776A Withdrawn GB2246273A (en) 1990-05-25 1990-05-25 Adapting teletext information for the blind

Country Status (1)

Country Link
GB (1) GB2246273A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0574887A1 (en) * 1992-06-16 1993-12-22 Canon Kabushiki Kaisha Information processing apparatus for physically-handicapped users
EP1126643A3 (en) * 1994-01-12 2002-07-31 Command Audio Corporation A method and receiver for accessing data carried by a broadcast signal
EP1363455A2 (en) * 2002-05-16 2003-11-19 Seiko Epson Corporation Caption extraction device
WO2008008992A2 (en) * 2006-07-14 2008-01-17 Qualcomm Incorporated Improved methods and apparatus for delivering audio information
EP2356654A4 (en) * 2008-12-08 2015-09-09 Home Box Office Inc Method and process for text-based assistive program descriptions for television

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700322A (en) * 1983-06-02 1987-10-13 Texas Instruments Incorporated General technique to add multi-lingual speech to videotex systems, at a low data rate
GB2235111A (en) * 1989-08-03 1991-02-20 Samsung Electronics Co Ltd Teletext converter giving braille output.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700322A (en) * 1983-06-02 1987-10-13 Texas Instruments Incorporated General technique to add multi-lingual speech to videotex systems, at a low data rate
GB2235111A (en) * 1989-08-03 1991-02-20 Samsung Electronics Co Ltd Teletext converter giving braille output.

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
and viewdata into Braille",pp 196-200 *
Conference Title - Computers for handicapped persons,Austria1989,"The automatic translation system o *
Conference Title - International conference on man/machine systems,UK,1982,"Conversion of teletext *
Conference Title - Second international conference on microprocessors in automation and communicatio *
f teletext data for the blind using a personal computer",pp 406-412 *
Microprocessors and microsystems,Vol 10 No 10,Dec.1986, pp 553-556 *
ns,UK,1981,"Teletext and viewdata for the blind",pp 161-170 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0574887A1 (en) * 1992-06-16 1993-12-22 Canon Kabushiki Kaisha Information processing apparatus for physically-handicapped users
US5588839A (en) * 1992-06-16 1996-12-31 Canon Kabushiki Kaisha Information processing apparatus
EP1126643A3 (en) * 1994-01-12 2002-07-31 Command Audio Corporation A method and receiver for accessing data carried by a broadcast signal
EP1363455A2 (en) * 2002-05-16 2003-11-19 Seiko Epson Corporation Caption extraction device
EP1363455A3 (en) * 2002-05-16 2004-04-07 Seiko Epson Corporation Caption extraction device
WO2008008992A2 (en) * 2006-07-14 2008-01-17 Qualcomm Incorporated Improved methods and apparatus for delivering audio information
WO2008008992A3 (en) * 2006-07-14 2008-11-06 Qualcomm Inc Improved methods and apparatus for delivering audio information
US7822606B2 (en) 2006-07-14 2010-10-26 Qualcomm Incorporated Method and apparatus for generating audio information from received synthesis information
EP2356654A4 (en) * 2008-12-08 2015-09-09 Home Box Office Inc Method and process for text-based assistive program descriptions for television

Also Published As

Publication number Publication date
GB9011776D0 (en) 1990-07-18

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)