Math menu user interface on a calculator
First Claim
Patent Images
1. A system, comprising:
- a processor;
a keyboard coupled to the processor, said keyboard comprising a mathematical function key and an arrow key; and
a display coupled to the processor, said display having only two lines with one line used for numbers as well as text and another line used for numbers only;
wherein, when said mathematical function key is pressed, said processor causes said display to display a sequence of at least one math function and at least one math menu choice upon a user repeatedly pressing the arrow key, wherein the at least one math menu choice describes a group of one or more math functions or sub-menu choices and is not itself a math function; and
wherein, for each math function displayed on the display, the processor concurrently also causes the result of the math function to be displayed without the user pressing another key;
wherein the at least one math function and at least one math menu choice are displayed one at a time.
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Abstract
A system comprises a processor and a keyboard coupled to the processor. The keyboard comprises a mathematical function key and an arrow key. When the mathematical function key is pressed, the processor causes the display to display a sequence of math functions or math menu choices upon a user repeatedly pressing the arrow key. For each math function displayed on the display, the processor concurrently also causes the result of the math function to be displayed without the user pressing another key.
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Citations
14 Claims
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1. A system, comprising:
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a processor; a keyboard coupled to the processor, said keyboard comprising a mathematical function key and an arrow key; and a display coupled to the processor, said display having only two lines with one line used for numbers as well as text and another line used for numbers only; wherein, when said mathematical function key is pressed, said processor causes said display to display a sequence of at least one math function and at least one math menu choice upon a user repeatedly pressing the arrow key, wherein the at least one math menu choice describes a group of one or more math functions or sub-menu choices and is not itself a math function; and wherein, for each math function displayed on the display, the processor concurrently also causes the result of the math function to be displayed without the user pressing another key; wherein the at least one math function and at least one math menu choice are displayed one at a time. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method, comprising:
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entering a data value on a calculator keyboard; pressing a math button on the calculator keyboard; displaying one at a time a sequence of at least one selectable menu choice and at least one math function on a display upon a user repeatedly pressing a direction key on the keyboard wherein the at least one math menu choice describes a group of one or more math functions or sub-menu choices and is not itself a math function; and for each such math function, displaying a title of the math function and the result of the operation of the math function on the entered data value without a user pressing another key. - View Dependent Claims (8, 9, 10, 11)
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12. A hand-held calculator, comprising:
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logic; a keyboard coupled to the logic, said keyboard comprising a mathematical function key and an arrow key; and a display coupled to the logic, said display comprising less than two lines on which to display alphanumeric characters; wherein, upon said mathematical function key being pressed, said logic causes said display to display at least one math menu title and at least one math function upon a user repeatedly pressing the arrow key wherein the at least one math menu choice describes a group of one or more math functions or sub-menu choices and is not itself a math function; and wherein, for the at least one math function displayed on the display, the logic concurrently also causes the result of the math function to be displayed without the user pressing another key; and wherein the at least one math function and at least one math menu choice are displayed one at a time. - View Dependent Claims (13, 14)
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Specification