CAPELLA MICROSYSTEMS (Taiwan), Ltd. Patent applications |
Patent application number | Title | Published |
20110221349 | Illuminating System and Method Thereof - The present invention discloses an illuminating system and a method thereof, comprising a light emitting module, a light sensor and a control module, wherein the control module connects to the light emitting module and the light sensor. The light emitting module emitting light with a first frequency, the light sensor detecting an intensity of incident light, and the control module controls the light emitting module to emit light with a second frequency according to the intensity of incident light. | 09-15-2011 |
20100019133 | PHOTOSENSITIVE CHIP - The present invention discloses a photosensitive circuit comprising a photosensitivity unit, a capacitance and a switch unit. The photosensitivity unit is capable of receiving a received light, and the capacitance is capable of storing a photoelectric current corresponding to the received light. The switch unit is used to respectively provide the positive voltage of the capacitance to a comparison unit at a first time period, and the negative voltage of the capacitance to a comparison unit at a second time period. The comparison unit outputs a detection value according to the positive voltage and the negative voltage of the capacitance, the detection value is related to the distance between an object and the photosensitive circuit. The present invention further disclose a photosensitive chip to drive a luminescent unit to provide a detective light. The photosensitive chip comprises a sampling clock generator, the ambient light sensor unit, a proximity sensor unit and a driving clock generator. | 01-28-2010 |
20090236508 | Incremental encoder - An incremental encoder, which comprises a light source, a code wheel, a first photo-sensitive unit, a second photo-sensitive unit, a first inverse-phase photo-sensitive unit and a comparison circuit, is disclosed. The light source provides a detecting light. The code wheel comprises many diaphanous holes. The detecting light is sieved into a light pulse signal by the diaphanous holes when the code wheel is rotating. The first photo-sensitive unit, the second photo-sensitive unit and the first inverse-phase photo-sensitive unit generates the first electronic signal, the second electronic signal and the first inverse-phase electronic signal respectively based on the light pulse signal. The comparison circuit generates a voltage signal by composing the first electronic signal and the first inverse-phase electronic signal, generates a first digital signal based on the voltage signal and the first electronic signal, and generates a second digital signal based on the voltage signal and the second electronic signal. | 09-24-2009 |