Keyless control mechanism
First Claim
1. Apparatus for generating a control signal in response to predetermined input signals, comprising, first means for sequentially displaying information for viewing by an observer, said first means including a display window having a critical viewing angle requiring the observer to assume a specific position relative to the display window in order to view the displayed information, second means including a single actuator means permitting an observer to selectively acknowledge displayed information and produce signals indicative of the acknowledged display information, and third means operatively connected to said second means and responding to said signals to determine if the acknowledged information corresponds to predetermined information, said third means producing a control signal if said acknowledged information corresponds to said predetermined information.
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Accused Products
Abstract
A controlled display device sequentially displays code information which is viewable only to an observer positioned at a critical angle relative to the display device. The observers actuation of a device acknowledging a predetermined sequence of code information results in the generation of a control signal.
17 Citations
4 Claims
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1. Apparatus for generating a control signal in response to predetermined input signals, comprising, first means for sequentially displaying information for viewing by an observer, said first means including a display window having a critical viewing angle requiring the observer to assume a specific position relative to the display window in order to view the displayed information, second means including a single actuator means permitting an observer to selectively acknowledge displayed information and produce signals indicative of the acknowledged display information, and third means operatively connected to said second means and responding to said signals to determine if the acknowledged information corresponds to predetermined information, said third means producing a control signal if said acknowledged information corresponds to said predetermined information.
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2. Apparatus claimed in claim 1 wherein said display window consists of a light control film.
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3. Apparatus claimed in claim 1 wherein said display window includes louvers arranged to establish a critical viewing angle for observing the displayed information.
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4. ApparaTus claimed in claim 1 wherein said third means includes mechanical thumbwheel switch means for changing said predetermined information.
Specification
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- Resources
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Current AssigneePaul S. Angello
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Original AssigneePaul S. Angello
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InventorsAngello, Paul S.
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Primary Examiner(s)Yusko, Donald J.
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Application NumberUS05/440,202Time in Patent Office510 DaysField of Search340/147R,149R,164A,164R 317/134US Class Current340/5.54CPC Class CodesG07C 9/00698 actuated in function of dis...G07F 7/10 together with a coded signa...
