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Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 6, 2015
0Patent Application Number
143578170
Date Filed
August 21, 2012
0Patent Citations Received
Patent Primary Examiner
Patent abstract
In a distance measurement device of an embodiment, a light source emits modulation light in a first charge transfer cycle, and emission of the modulation light of the light source is stopped in a second charge transfer cycle. In each of the first and second charge transfer cycles, the charges generated in a photosensitive region are distributed to a first accumulation region and a second accumulation region. A first value is obtained based on readout values corresponding to amounts of accumulated charges of the first accumulation region. A second value is obtained based on readout values corresponding to amounts of accumulated charges of the second accumulation region. A distance is calculated based on the first value and the second value.
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