Projection noise reduction system and noise reduction method

Abstract

The invention provides a projection noise reduction system and method. The projection noise reduction system comprises a projector and an intelligent device. The projector comprises a storage unit which stores a comparison table including multiple noise reduction parameters and multiple noise reduction signals, wherein the multiple noise reduction parameters are corresponding to the multiple noise reduction signals; a second processing unit which is coupled with the storage unit; a second communication unit which is coupled with the second processing unit; and a sound generation unit which is coupled with the second processing unit. The intelligent device is arranged at the periphery of the projector. The intelligent device comprises a first processing unit; and a first communication unit which is coupled with the first processing unit, wherein the first processing unit controls the first communication unit to transmit the noise reduction parameters, the second communication unit receives the noise reduction parameters, the second processing unit acquires the corresponding noise reduction signals according to the noise reduction parameters and the comparison table, and the sound generation unit plays the corresponding noise reduction signals. Therefore, the effect of noise reduction can be achieved.

Description

technical field [0001] The invention relates to the field of projection noise reduction, in particular to a system and method for noise reduction using an intelligent device in cooperation with a projector. Background technique [0002] Electronic projectors, whether digital light processing projectors (Digital Light Processing, DLP) or liquid crystal display projectors (Liquid Crystal Display, LCD), while the resolution of the projectors and the size of the projections increase, the demand for the brightness of the projectors also increases. increase, and with the improvement of the projector's own chip processing capability and high-brightness backlight, the heat generated by the projector has increased greatly. Most projectors use forced cooling methods such as fans to cool down to protect components and extend components. service life. On the other hand, in response to the audio-visual needs of users, in addition to being equipped with rich information terminals, variou...

AI Technical Summary

Problems solved by technology

However, the above-mentioned noise reduction technology requires built-in detection, calculation and broadcasting and other equipment, which increases the cost of the product itself, and this way of implementing calculation puts forward higher requirements for the control circuit, which is not conducive to cost reduction.

Images