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Projector for automatic recognition of suspended ceiling model

An automatic identification and projector technology, applied in the field of projectors, can solve problems such as trouble for users, achieve the effect of convenient use and avoid abnormal display

Inactive Publication Date: 2007-09-12
XINCHENG ZHIDIAN NETWORK TECH CO LTD SHANGHAI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is very difficult to ask the user to change the factory mode, and it must be debugged by the professional of the manufacturer. Therefore, the existing projector has certain limitations in use, and sometimes it will bring great trouble to the user.

Method used

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  • Projector for automatic recognition of suspended ceiling model
  • Projector for automatic recognition of suspended ceiling model

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Embodiment Construction

[0014] Referring to Fig. 1, a projector of the present invention that automatically recognizes the ceiling mode includes a housing 1, a light engine 2, a circuit board 3, a lighter and a power supply 7, a light source 4, a heat dissipation mechanism 5 and an automatic ceiling mode. Identify circuit 6.

[0015] Referring to FIG. 2 , the ceiling mode automatic identification circuit 6 of the present invention includes an image receiving photosensitive device 601 , an image processing chip 602 and a host CPU 603 . The image receiving photosensitive device 601 adopts HV7131R, and the image processing chip 602 adopts DSP56EF80.

[0016] The host computer CPU 603 is connected with the image processing chip 602, and sends a detection command to the image processing chip 602. The image receiving photosensitive device 601 detects and receives the optical signal from the projection screen, and the image receiving photosensitive device 601 is connected with the image processing chip 602....

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PUM

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Abstract

The invention provides a projector of automatically recognizing hang ceiling mode, comprising: casing as well as light engine, circuit board, lighter, light source and heat radiation mechanism arranged in the casing, and also comprising a hang ceiling mode automatic recognizing circuit. As compared with the existing techniques, it has advantages of an operating mode of automatically sensing projector, automatically regulating display state of projection image, avoiding abnormal display of projection image caused by user's misoperation, etc.

Description

technical field [0001] The invention relates to a projector, in particular to a projector that automatically recognizes a ceiling mode. Background technique [0002] Projectors are widely used in education, business and home. A common projector generally includes a casing and a light engine, a circuit board, a lighter, a light source and a corresponding heat dissipation mechanism arranged in the casing. According to the number of lenses used in the light engine, projectors can be divided into single-lens projectors and three-lens projectors. In terms of design, the white light generated by a light source is generally separated into red, green and blue three-color light, and the three-color light is modulated by three liquid crystal light valves respectively. The modulated three-color light is designed according to the single-lens or three-lens design. Different methods are used to deal with it. In a single-lens projector, the three-color light is synthesized with a color ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/14G03B21/16G03B21/00
Inventor 肖雄朱志武
Owner XINCHENG ZHIDIAN NETWORK TECH CO LTD SHANGHAI
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