Education and demonstration – Communication aids for the handicapped – Tactile reading aid
Patent
1987-07-21
1989-11-21
Tarcza, Thomas H.
Education and demonstration
Communication aids for the handicapped
Tactile reading aid
434114, 382 1, G09B 2100, G06K 900
Patent
active
048819000
ABSTRACT:
Selecting switches are provided near a converter for converting an optical image into an electric signal, thereby enabling the electric signal before or after it was stored to be effectively selected. A plurality of convertors are provided and when an electric signal is not output from one of the convertors, the other convertors can be used. The analog electric signal output from the converter is binarized by a reference level signal before it fluctuates. An electric power consumption when the apparatus is not used is prevented by a power controller arranged near a sensing display.
REFERENCES:
patent: 4475234 (1984-10-01), Nishijima et al.
"A Monolithic Image Sensor for a Reading Aid for the Blind," Proc. IEEE, vol. 58, #9, Sep. 1970, Salsbury et al.
"An Aid to the Blind: An Optical-to-Tactile Converter of Wide Images," Ciolli et al., Inst. Naz. Office, (Italy) vol. 34.
"A Reading Eye for the Blind," Brugler et al., Optical Spectra, Feb. 1971.
"Proceedings of IFIP Congress 80"--Tokyo--6-9 Oct. 1980, Melbourne, 14-17 Oct. 1980, pp. 951-954, North Holland.
Publishing Co., Amsterdam N1; W. Schwewikhardt: "A Computer Based Education System for the Blind".
Wescon Technical Papers, vol. 17, San Francisco, 11-14 Sep. 1973, pp. 1 and 2, Wescon, Los Angeles, U.S.; R. D. Melen: "A One-Hand Optacon".
Ikuta Tamao
Kanemoto Takashi
Katayama Hirohiko
Matsuoka Mikiharu
Miyazaki Yasuko
Canon Kabushiki Kaisha
Lobo Ian J.
Tarcza Thomas H.
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