US 12,457,705 B2
Projection device and parameter adjustment method thereof
Wei-Min Chien, Hsin-Chu (TW); Yi-Cheng Hou, Hsin-Chu (TW); and Tung-Chou Hu, Hsin-Chu (TW)
Assigned to Coretronic Corporation, Hsin-Chu (TW)
Filed by Coretronic Corporation, Hsin-Chu (TW)
Filed on Sep. 7, 2022, as Appl. No. 17/939,872.
Claims priority of application No. 202111054774.9 (CN), filed on Sep. 9, 2021.
Prior Publication US 2023/0080165 A1, Mar. 16, 2023
Int. Cl. H05K 7/20 (2006.01); G03B 21/16 (2006.01); H04R 3/00 (2006.01); H04R 29/00 (2006.01)
CPC H05K 7/20209 (2013.01) [G03B 21/16 (2013.01); H04R 3/00 (2013.01); H04R 29/001 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A parameter adjustment method of a projection device, comprising:
receiving a plurality of environment detection values through a control chip from a plurality of detection modules, wherein the plurality of environment detection values are an environment illuminance value and a volume load value, or the environment illuminance value and an environment volume value, or the volume load value and the environment volume value, or the environment illuminance value, the volume load value and the environment volume value;
comparing each of the plurality of environment detection values with a corresponding reference range to obtain a plurality of comparison results, wherein the plurality of comparison results are corresponding environment modes or environment load values corresponding to the environment modes;
selecting a lowest speed among a plurality of rotation speeds of a fan module corresponding to the plurality of comparison results; and
adjusting the rotation speed of the fan module according to the lowest speed.