Method to calibrate digital speedometer display to meter speedometer display
First Claim
Patent Images
1. A method for adjusting a displayed value of a digital gauge display to match a value indicated by a corresponding analog gauge in a system having both an analog and digital displays displaying common information, the method comprising:
- determining an analog gauge offset value corresponding to a difference between an anticipated analog gauge display value and a value physically indicated by the analog gauge when a given analog gauge input signal is provided to the analog gauge;
providing the analog gauge offset value to a controller adapted to send a digital gauge input signal to the digital gauge display to display a value on the display;
generating the digital gauge input signal by adding the analog gauge offset value to the analog gauge input signal;
sending the digital gauge input signal to the digital gauge;
displaying on the digital gauge a value corresponding to the input signal, said value corresponding to the input signal matching a value indicated by the analog gauge.
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Abstract
A method and system for calibrating a digital speedometer display to match an analog speedometer indicated value. The method generally includes calibrating each analog speedometer unit such that the exact deviation or “offset” from the center point of the analog speedometer is known. This measured deviation is then used to adjust the value input to the digital display thereby making the digital display value match the indicated value of the analog speedometer.
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Citations
16 Claims
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1. A method for adjusting a displayed value of a digital gauge display to match a value indicated by a corresponding analog gauge in a system having both an analog and digital displays displaying common information, the method comprising:
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determining an analog gauge offset value corresponding to a difference between an anticipated analog gauge display value and a value physically indicated by the analog gauge when a given analog gauge input signal is provided to the analog gauge; providing the analog gauge offset value to a controller adapted to send a digital gauge input signal to the digital gauge display to display a value on the display; generating the digital gauge input signal by adding the analog gauge offset value to the analog gauge input signal; sending the digital gauge input signal to the digital gauge; displaying on the digital gauge a value corresponding to the input signal, said value corresponding to the input signal matching a value indicated by the analog gauge. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system having both an analog gauge and a digital display for displaying common information comprising:
- an analog gauge adapted to receive an analog gauge input signal and, in response thereto, indicate a value;
a digital display adapted to receive a digital gauge input signal and in response thereto display a digital value; and
a controller for generating the digital gauge input signal and sending said signal to the digital display;
wherein the controller is configured to receive an analog gauge offset value corresponding to a difference between an anticipated analog gauge display value and a value physically indicated by the analog gauge, and generate the digital gauge input signal by adding the analog gauge offset value to the analog gauge input signal;
whereby the analog gauge and the digital display are configured to display a common value at the same time. - View Dependent Claims (9, 10, 11, 12, 13)
- an analog gauge adapted to receive an analog gauge input signal and, in response thereto, indicate a value;
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14. An analog gauge comprising:
- a gauge face having at least one marking corresponding to a value;
a moveable indicator adapted to move relative to the at least one marking for indicating a value when an analog input signal is provided to the gauge; and
a memory for storing at least one analog gauge offset value corresponding to a difference between an anticipated analog gauge display value and a value physically indicated by the analog gauge wherein the difference is a subtraction of the anticipated analog gauge display value from the value physically indicated by the analog gauge. - View Dependent Claims (15, 16)
- a gauge face having at least one marking corresponding to a value;
Specification