DRIVE RECORDER
First Claim
1. A drive recorder which is connected to an image capturing unit that outputs data, comprising:
- an image processing circuit which receives said data and converts said received data into video information;
an acceleration sensor which outputs acceleration information representing an acceleration exerted on a vehicle;
a recording device; and
a control unit which determines that a recording condition holds when said acceleration information equals or exceeds a threshold, and records said video information onto said recording device, whereinsaid control unit diagnoses connections to said image processing circuit, said acceleration sensor, or said image capturing unit during power-up of said drive recorder.
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Accused Products
Abstract
An object of the present invention is to provide a drive recorder that can check whether the essential components of the drive recorder are functioning properly for recording of video information. More specifically, the invention provides a drive recorder which is connected to an image capturing unit that outputs data, includes an image processing circuit which receives the data and converts the received data into video information, an acceleration sensor which outputs acceleration information representing an acceleration exerted on a vehicle, and a control unit which determines that a recording condition holds when the acceleration information equals or exceeds a threshold, and records the video information onto a recording device, wherein the control unit diagnoses connections to the image processing circuit, the acceleration sensor or the image capturing unit during power-up of the drive recorder.
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Citations
9 Claims
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1. A drive recorder which is connected to an image capturing unit that outputs data, comprising:
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an image processing circuit which receives said data and converts said received data into video information; an acceleration sensor which outputs acceleration information representing an acceleration exerted on a vehicle; a recording device; and a control unit which determines that a recording condition holds when said acceleration information equals or exceeds a threshold, and records said video information onto said recording device, wherein said control unit diagnoses connections to said image processing circuit, said acceleration sensor, or said image capturing unit during power-up of said drive recorder. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A drive recorder which is connected to an image capturing unit that outputs data, comprising:
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an image processing circuit which receives said data and converts said received data into video information; an acceleration sensor which outputs acceleration information representing an acceleration exerted on a vehicle; a recording device; and a control unit which determines that a recording condition holds when said acceleration information equals or exceeds a threshold, and records said video information onto said recording device, wherein said control unit diagnoses said acceleration sensor during power-up of said drive recorder, and applies offset compensation to said acceleration sensor when there is no fault in said acceleration sensor.
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9. A drive recorder comprising:
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an acceleration sensor; a recording device; a control unit which controls recording to said recording device in accordance with an output from said acceleration sensor, wherein said control unit diagnoses said acceleration sensor during power-up of said drive recorder, and applies offset compensation to said acceleration sensor when there is no fault in said acceleration sensor.
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Specification