Unlock instant, AI-driven research and patent intelligence for your innovation.

Projection device and system

A technology for projection devices and projectors, applied in projection devices, optics, instruments, etc., can solve problems such as not meeting market expectations, increasing costs, and complicated mechanisms

Inactive Publication Date: 2008-07-09
DELTA ELECTRONICS INC
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the calculation method of this method is too complicated, which causes a burden on the internal processor of the projector. Not only that, this method also needs a camera for sensing and generating signals, which not only makes the mechanism more complicated, but also greatly increases the cost, which is not in line with the market expect
[0005] To sum up, the current methods of improving the projection of projectors to presenters are either easily affected by lighting, or are too complicated and increase system costs, which do not meet the needs of users

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Projection device and system
  • Projection device and system
  • Projection device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The first embodiment of the present invention is shown in Fig. 1 and figure 2 As shown, a projection system 1 is shown, and the projection system 1 includes a sensor 11 and a projection device 13, both of which transmit signals. In this embodiment, the transmission of the signal is carried out by infrared transmission in a wireless manner. In other embodiments, radio signals, ultrasonic signals and other wireless signals can also be used for transmission; in addition, the sensor 11 and the projection device 13 can also be the transmission of wired electronic signals, such as connecting with transmission lines or optical fibers, sensing The signal generated by the device is transmitted to the projection device through the transmission line or optical fiber.

[0033] The sensor 11 is installed under the screen 12 to sense the horizontal position of the user 10 in front of the screen 12, and sends a horizontal position signal 110 to the projection device 13 according to t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A sensor senses the horizontal position of a user in front of a screen, and sends horizontal signals. A projection device comprises a receiver, a processor and an image projector; wherein the receiver receives the horizontal signals, the processor generates on-screen display (OSD) according to the horizontal signals and overlays the OSD on a projected image, and the image projector projects the overlaid image onto a screen; at the time of projection, the OSD covers a user's face.

Description

technical field [0001] The present invention relates to a projection device and a projection system including the projection device; in particular, it relates to a projection device capable of generating masked images to presenters and a projection system including the projection device. Background technique [0002] With the diversified development of society, the expression and communication between people is becoming more and more important, for example, internal education and training, customer meetings, copywriting, or external product descriptions, speeches and other activities. In order to allow the participants to go deeper into the topics and allow the presenters to express their thoughts more clearly, projection devices are often used in activities to make the presentation of information more convenient and improve work efficiency. However, when the presenter stands in front of the projection screen and faces the projection device, the light and shadow projected by...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/26G03B21/00
Inventor 苏紫薇郭文杰
Owner DELTA ELECTRONICS INC