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Expanded interface system for projector and expanded module and controlling method therefor

A technology of expansion unit and expansion interface, which is applied in the field of projection, can solve the problem that expansion units cannot be replaced with each other, and achieve the effect of reducing workload and speeding up the cycle of upgrading

Inactive Publication Date: 2005-09-28
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is that in the projection system, the expansion functions are bound to a specific projector, and the expansion units of different applications cannot be replaced with each other.

Method used

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  • Expanded interface system for projector and expanded module and controlling method therefor
  • Expanded interface system for projector and expanded module and controlling method therefor
  • Expanded interface system for projector and expanded module and controlling method therefor

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Embodiment Construction

[0030] Please refer to figure 1 As shown, the present invention provides a universal expansion interface system for function expansion of the projector. This universal interface 3 well defines the boundary between projector 1 and extension unit 2, projector 1 (such as DLP projector, LCD projector, LCOS projector, etc.) and extension unit 2 (such as wireless unit, embedded PC, PC card player, TV tuner, DVD player, etc.) are on both sides of the universal interface 3, and the technologies of the two have nothing to do with each other. Expansion units 2 with different functions and different projector 1 hosts designed according to the definition of the expansion interface system can be conveniently connected together. One projector 1 can be hot-swappable connected with multiple expansion units 2 .

[0031] This design mode enables the projector manufacturer to coordinate development work within the projector manufacturer or between the projector manufacturer and other manufactu...

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Abstract

The invention is a kind of expanding interface system between projecting apparatus and expanding module and the control method, the projecting sets following expanding interfaces: picture interface for inputting and outputting computer picture signal, and realizing projection displaying; video frequency interface, realizes the input and output of video frequency signal, and realizes the projection displaying of video frequency signal; audio frequency interface, realizes the input and output of audio frequency signal; full duplex communication interface, the expanding module and projecting apparatus use the channel to transmits full duplex control order; power interface, supplies power to expanding module, it is the interior power module in the projecting apparatus. The control method includes three flows: expanding module initializing flow, expanding module communication interruption service flow and projecting apparatus communication interruption service flow.

Description

technical field [0001] The invention belongs to the field of projection, and in particular is used for an expansion interface and a control method between a projector and an expansion unit. Background technique [0002] With the maturity of the underlying technologies of projectors such as LCD and DLP, the homogeneity of basic performance indicators of products is becoming more and more obvious. Consumers have gradually paid more attention to the functional design, personalized design and characteristic technology of products. Therefore, various projector manufacturers have begun to increase their development efforts in function expansion, and products such as wireless projectors, network projectors, and PC card projectors have been launched accordingly. These projectors with extended functions have further improved product grades and promoted market growth. develop. These current functional projectors have the following disadvantages in terms of design ideas: [0003] 1. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/18G06F3/00G06F9/30
Inventor 颜毅强赵牧庄渭峰
Owner LENOVO (BEIJING) LTD
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