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Control circuit for image array sensors and automatic headlmap control

An image array and detector technology, applied in the direction of headlights, image communication, energy-saving control technology, etc., can solve the problems of information loss, uncertain intensity, etc.

Inactive Publication Date: 2005-03-09
金特克斯公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the sensitivity of the image array detector is set too high, the specific pixels imaging the headlights will be saturated, and the actual intensity may not be determined. Since the sensitivity of the headlight image is a general representation of the distance to oncoming vehicles, this information is lost

Method used

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  • Control circuit for image array sensors and automatic headlmap control
  • Control circuit for image array sensors and automatic headlmap control
  • Control circuit for image array sensors and automatic headlmap control

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Embodiment Construction

[0031] The present invention relates to a control system for controlling an image array detector, such as the above-mentioned active image pixel array detector, for example, a photobit photodiode image array detector, and provides communication with a microcontroller. Quite efficient serial communication interface. Although the system is described with reference to a photodiode image array detector, the principles of the invention are also applicable to other image array detectors, such as the photogate type image array detectors described above. The systems described below are integrated with existing CMOS image array detectors and even microcontrollers. The serial communication interface between the microcontroller and the image array detector provides a relatively plug-less device. For example, in one embodiment, control logic, programmable row, column and timing controllers, photoarray detectors and associated biasing circuits, and amplifiers and Figure 9The blocks 1, 2...

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Abstract

A control system is disclosed for controlling an image array sensor and controlling communication between the image array sensor and a microcontroller by way of a serial communication interface. The control system is able to efficiently control various aspects of the image array sensor such as windowing, mode of operation, sensitivity as well as other parameters in order to reduce the data throughput. An important aspect of the invention relates to the fact that the control circuit can be rather easily and efficiently configured in CMOS with relatively few output pins which enables the control circuit to be rather easily and efficiently integrated with CMOS based image array sensors and even the microcontroller to reduce the part count and thus, the overall cost of the system.

Description

technical field [0001] The present invention relates to a control system, in particular to a control system for controlling an image array detector with a predetermined number of pixels and controlling communication between the image array detector and a microcontroller through a serial communication interface, the The described control system enables efficient and economical control of individual subgroups or subwindows of pixels and the manner in which the image array detector operates through a circuit suitable to be fabricated as an Application Specific Integrated Circuit (ASIC), even suitable for It is integrated with an image array detector and a microcontroller to form a custom IC. Background technique [0002] Image array detectors are well known in the art. Photogates and photodiode image array detectors are known. Examples of such image array detectors are disclosed in U.S. Patents 5,386,128 and 5,471,515 and 2 / SPIE Vol. 1900, pp. 2-14, "ACTIVE PIXEL SENSORS: ARE...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60Q1/08B60Q1/14H04N25/00
CPCH04N3/1562G06K9/00825B60Q2300/42B60Q2300/45B60Q2300/41B60Q2300/312B60Q2300/3321B60Q2300/054B60Q1/1423H04N5/232B60Q2300/324H04N5/335G06V20/584H04N23/661H04N25/00B60Q1/14H04N25/74
Inventor J·H·贝赫特尔J·S·斯塔姆
Owner 金特克斯公司