Automated development of timing diagrams for electrical circuits
First Claim
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1. An apparatus for constructing timing diagrams on a computer having a monitor to model electrical circuits, comprising:
- parameter spreadsheet means, performed by the computer, for accepting one or more parameters defining a timing diagram into a spreadsheet displayed on the monitor, wherein the spreadsheet comprises one or more intersecting rows and columns, each of the rows comprises one of the parameters, and the columns identify a minimum value for the parameter and a maximum value for the parameter; and
timing diagram window means, performed by the computer, for displaying the timing diagram on the monitor of the computer in response to the parameters accepted into the spreadsheet displayed on the monitor, wherein the spreadsheet and the timing diagram are linked so that changes in the spreadsheet are reflected in the timing diagram.
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Abstract
A computer-implemented method and apparatus that automates the entry, modification, and verification of timing diagrams for electrical circuits. The computer-implemented method and apparatus also provides an automated mechanism for analyzing these timing diagrams and verifying that the timing relationships specified for the circuit are met using the parts selected for the circuit.
67 Citations
42 Claims
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1. An apparatus for constructing timing diagrams on a computer having a monitor to model electrical circuits, comprising:
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parameter spreadsheet means, performed by the computer, for accepting one or more parameters defining a timing diagram into a spreadsheet displayed on the monitor, wherein the spreadsheet comprises one or more intersecting rows and columns, each of the rows comprises one of the parameters, and the columns identify a minimum value for the parameter and a maximum value for the parameter; and timing diagram window means, performed by the computer, for displaying the timing diagram on the monitor of the computer in response to the parameters accepted into the spreadsheet displayed on the monitor, wherein the spreadsheet and the timing diagram are linked so that changes in the spreadsheet are reflected in the timing diagram. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of constructing timing diagrams on a computer having a monitor to model electrical circuits, comprising the steps of:
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accepting one or more parameters defining a timing diagram into a spreadsheet displayed on the monitor coupled to the computer, wherein the spreadsheet comprises one or more intersecting rows and columns, each of the rows comprising one of the parameters, and the columns identify a minimum value for the parameter and a maximum value for the parameter; and displaying the timing diagram on the monitor of the computer in response to the parameters accepted into the spreadsheet displayed on the monitor, wherein the spreadsheet and the timing diagram are linked so that changes in the spreadsheet are reflected in the timing diagram. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification