VEHICLE VISION SYSTEM WITH CAMERA POWER CONTROL
First Claim
1. A vision system for a vehicle, said vision system comprising:
- a camera configured to be disposed at a vehicle so as to have a field of view interior or exterior of the vehicle;
a power supply operable to supply a voltage for powering said camera;
a power filter in communication with said power supply and said camera and operable to supply a voltage to said camera;
a microcontroller operable to measure a voltage level supplied to said power filter; and
wherein, responsive to the determination that the measured voltage level is one of (i) a threshold amount above a nominal operating voltage of said camera and (ii) a threshold amount below the nominal operating voltage of said camera, said microcontroller adjusts the power supply to said camera.
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Accused Products
Abstract
A vision system for a vehicle includes a camera, a power supply, a power filter and a microcontroller. The camera is configured to be disposed at a vehicle so as to have a field of view interior or exterior of the vehicle. The power supply is operable to supply a voltage for powering the camera. The power filter is in communication with the power supply and the camera and is operable to supply a voltage to the camera. The microcontroller is operable to measure a voltage level supplied to the power filter. Responsive to the determination that the measured voltage level is one of (i) a threshold amount above a nominal operating voltage of the camera and (ii) a threshold amount below the nominal operating voltage of the camera, the microcontroller adjusts the power supply to the camera.
23 Citations
20 Claims
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1. A vision system for a vehicle, said vision system comprising:
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a camera configured to be disposed at a vehicle so as to have a field of view interior or exterior of the vehicle; a power supply operable to supply a voltage for powering said camera; a power filter in communication with said power supply and said camera and operable to supply a voltage to said camera; a microcontroller operable to measure a voltage level supplied to said power filter; and wherein, responsive to the determination that the measured voltage level is one of (i) a threshold amount above a nominal operating voltage of said camera and (ii) a threshold amount below the nominal operating voltage of said camera, said microcontroller adjusts the power supply to said camera. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A vision system for a vehicle, said vision system comprising:
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a camera configured to be disposed at a vehicle so as to have a field of view interior or exterior of the vehicle; a control unit comprising a power supply, a power filter, a receiver and a microcontroller, wherein said camera is connected to said control unit; wherein said power supply operable to supply a voltage for powering said camera; wherein said power filter is in communication with said power supply and said camera and operable to supply a voltage to said camera; wherein said receiver receives data captured by said camera and provides an output to said microcontroller for processing; wherein said microcontroller is operable to measure a voltage level supplied to said power filter; wherein the voltage is measured at one of (i) a node between said power supply and said power filter and (ii) a sense node at said power supply; and wherein, responsive to the determination that the measured voltage level is one of (i) a threshold amount above a nominal operating voltage of said camera and (ii) a threshold amount below the nominal operating voltage of said camera, said microcontroller adjusts the power supply to said camera. - View Dependent Claims (17, 18)
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19. A vision system for a vehicle, said vision system comprising:
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a camera configured to be disposed at a vehicle so as to have a field of view interior or exterior of the vehicle; a control unit comprising a power supply, a power filter, a receiver and a microcontroller, wherein said camera is connected to said control unit via a low-voltage differential signaling wire; wherein said control unit comprises an asymmetrical low-voltage differential signaling wire driver; wherein said power supply operable to supply a voltage for powering said camera; wherein said power filter is in communication with said power supply and said camera and operable to supply a voltage to said camera; wherein said power filter comprises a low pass filter; wherein said receiver receives data captured by said camera and provides an output to said microcontroller for processing; wherein said microcontroller is operable to measure a voltage level supplied to said power filter; wherein the voltage is measured at one of (i) a node between said power supply and said power filter and (ii) a sense node at said power supply; and wherein, responsive to the determination that the measured voltage level is one of (i) a threshold amount above a nominal operating voltage of said camera and (ii) a threshold amount below the nominal operating voltage of said camera, said microcontroller adjusts the power supply to said camera. - View Dependent Claims (20)
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Specification