Television – Special applications – Aid for the blind
Patent
1996-03-11
1998-03-17
Au, Amelia
Television
Special applications
Aid for the blind
382313, H04N 718
Patent
active
057292833
ABSTRACT:
A magnifying device for magnifying an object and displaying the object on a monitor is disclosed. The magnifying device includes a hand held unit or scanner and a base unit. The scanner includes a solid state camera which is mounted in a housing. The scanner includes a focusing control and a zoom control. The focusing and zoom controls are interconnected so that the image will not have to be refocused if the magnification of the image is changed. The camera converts the image to an electrical signal which is sent to the base unit. A mobile holder for the scanner is provided having an upper frame of space apart, horizontally extending arms. The arms extend laterally from the top edge of a vertical side wall. The scanner can be removeably attached between the arms and there by elevated above the object being read. The side wall has a pair of wheels attached to the bottom corners. There is a support member at one corner which extends laterally from the wall and parallel to the support arms. The support member has a wheel attached to the distal end. The three wheels are in a substantially triangular arrangement for stability and mobility. The base unit includes inverting circuitry to convert the image from black on white to white on black, if desired. The base unit can be connected either to video monitor or a standard television. When connected to the television, the devise will not impair normal use of the television when the unit is turned off. All controls for the device are located on the hand unit to be easily accessible at all times.
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Meyer Daniel M.
Trulaske James
Au Amelia
Denk Paul M.
Vision Technology, Inc.
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