Keyboard with multiple indicia sets
AssigneeLubartech Ltd.
InventorItzchak Bar-Yona
Life of this patent
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Abstract
The present invention discloses a method for displaying individually on a plurality of keys of a keyboard or keypad two or more indicia representing two or more functions performed by each key. The keys are characterized in that each of the two or more indicia is provided on the key in a plurality of separated portions. The portions being positioned in a spaced positioned relationship with one another, so as not to be physically closely juxtaposed. When viewed at a predetermined angle all parts of the indicia are optically juxtaposed to create the entire indicia.
Claims36
A key for a keyboard, a keypad, or the like, comprising two or more indicia provided on the surface of the key body, characterized in that each of said two or more indicia is provided on said key in a plurality of separated portions, said portions being positioned in a spaced positioned relationship with one another, so as not to be physically closely juxtaposed, and wherein when viewed at a predetermined angle all parts of said indicia are optically juxtaposed to create the entire indicia.
A method for displaying individually on a plurality of keys of a keyboard or keypad two or more indicia representing two or more functions performed by each key, the method comprising:
- dividing each of the individual indicia into portions;
- positioning each of said individual portions in a spaced positional relationship with respect to the adjacent portions containing parts of the same indicia;
- providing alternately, in the spaces between adjacent portions of the first indicia, portions containing information from the other indicia such that a single composite interlaced image, containing information about all of said indicia, is produced;
- wherein said composite image is produced on the top surface of said key and, when observed from different viewing angles, the information contained in said composite image is separated such that said indicia are observed individually.
A method for displaying individually on each key of a keyboard or keypad two or more indicia representing the two or more functions performed by said key, said method comprising:
- dividing each of the individual indicia into portions;
- positioning each of said separate portions of each of the indicia in separate parallel planes provided in the key, one set of said parallel planes for each of said indicia;
- wherein, when observed from different viewing angles, each of said indicia is observed individually.
Dependencies are inferred from the claim text.