发明名称 Optical touch apparatus with noise suppressing function and method of operating the same
摘要 An optical touch apparatus is disclosed. The optical touch apparatus comprises a light emitting module, a noise suppressing module, a light sensing module, and a processing module. The light emitting module emits at least one sensing beam, and the at least one sensing beam comprises a plurality of sensing rays. If an emitting angle of a specific sensing ray among the plurality of sensing rays toward a light sensor of the light sensing module is larger than a default value, the noise suppressing module will block the specific sensing ray from emitting into the light sensor. After the light sensing module generates a sensing result according to the condition of the light sensing module receiving the at least one sensing beam, the processing module will determine the position of a touch point according to the sensing result.
申请公布号 US8698780(B2) 申请公布日期 2014.04.15
申请号 US20100813175 申请日期 2010.06.10
申请人 YEN MENG-SHIN;WANG WILLIAM;CHOU CHUNG-CHENG;RAYDIUM SEMICONDUCTOR CORPORATION 发明人 YEN MENG-SHIN;WANG WILLIAM;CHOU CHUNG-CHENG
分类号 G06F3/042;G06F3/044 主分类号 G06F3/042
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