System and method for adaptive digital ramp current control
First Claim
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1. An adaptive digital ramp current control method, comprising:
- automatically digitally ramping a current level supplied to a light emitting diode (LED) according to a predetermined ramp profile, the ramp profile comprising at least one intermediate current level step between a minimum current level and a maximum current level.
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Abstract
An adaptive digital ramp current control system comprises a digital current ramp controller configured to digitally ramp a current level supplied to at least one light emitting diode (LED) according to a predetermined ramp profile, the ramp profile comprising at least one intermediate current level step between a minimum current level and a maximum current level.
23 Citations
20 Claims
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1. An adaptive digital ramp current control method, comprising:
automatically digitally ramping a current level supplied to a light emitting diode (LED) according to a predetermined ramp profile, the ramp profile comprising at least one intermediate current level step between a minimum current level and a maximum current level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An adaptive digital ramp current control system, comprising:
a digital current ramp controller configured to automatically digitally ramp a current level supplied to at least one light emitting diode (LED) according to a predetermined ramp profile, the ramp profile comprising at least one intermediate current level step between a minimum current level and a maximum current level. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. An imaging system, comprising:
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a photosensitive element for generating a scanned image of an object; at least one light emitting diode (LED) for illuminating the object; and a digital current ramp controller configured to automatically digitally ramp a current level supplied to the at least one (LED) according to a predetermined ramp profile, the ramp profile comprising at least one intermediate current level step between a minimum current level and a maximum current level. - View Dependent Claims (17, 18, 19, 20)
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Specification