Light receiving detection circuit having a high-pass filter and an amplifying circuit
A light receiving detection circuit has a light receiving element configured to receive light emitted from a corresponding projection element, a current/voltage conversion circuit that converts a current signal passing through the light receiving element into a voltage signal, and a filter portion t...
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Format | Patent |
Language | English |
Published |
14.05.2013
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Subjects | |
Online Access | Get full text |
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Abstract | A light receiving detection circuit has a light receiving element configured to receive light emitted from a corresponding projection element, a current/voltage conversion circuit that converts a current signal passing through the light receiving element into a voltage signal, and a filter portion that has a plurality of stages. The filter portion has a high-pass filter and an amplifying circuit. The high-pass filter is able to be switched such that a time constant of the high-pass filter increases when the light receiving element receives light emitted by the corresponding projection element such that the time constant decreases when other projection elements except for the corresponding projection element emit the light. |
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AbstractList | A light receiving detection circuit has a light receiving element configured to receive light emitted from a corresponding projection element, a current/voltage conversion circuit that converts a current signal passing through the light receiving element into a voltage signal, and a filter portion that has a plurality of stages. The filter portion has a high-pass filter and an amplifying circuit. The high-pass filter is able to be switched such that a time constant of the high-pass filter increases when the light receiving element receives light emitted by the corresponding projection element such that the time constant decreases when other projection elements except for the corresponding projection element emit the light. |
Author | DAIO MITSUAKI |
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Notes | Application Number: US20100712778 |
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RelatedCompanies | OMRON CORPORATION DAIO MITSUAKI |
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Snippet | A light receiving detection circuit has a light receiving element configured to receive light emitted from a corresponding projection element, a... |
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SubjectTerms | BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY CALCULATING COMPUTING COUNTING COUNTING MECHANISMS COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR DETECTING MASSES OR OBJECTS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING PHYSICS PULSE TECHNIQUE TESTING |
Title | Light receiving detection circuit having a high-pass filter and an amplifying circuit |
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