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1. (WO2018226516) DEVICE AND SYSTEM FOR MEASURING FLICKER

Pub. No.:    WO/2018/226516    International Application No.:    PCT/US2018/035536
Publication Date: Fri Dec 14 00:59:59 CET 2018 International Filing Date: Sat Jun 02 01:59:59 CEST 2018
IPC: G06F 13/28
Applicants: OSRAM SYLVANIA INC.
Inventors: SAFAEE, Alireza
SIESSEGGER, Bernhard
KOSTRUN, Marijan
Title: DEVICE AND SYSTEM FOR MEASURING FLICKER
Abstract:
Techniques are disclosed for measuring an amount of flicker produced by a light source. In one embodiment, a flicker measuring device includes a photo sensor to measure the amount of light produced by the light source, a dedicated processor to receive and process data from the photo sensor, a memory bus coupled to an analog-to-digital converter (ADC) and to a first memory, and a direct memory access (DMA) bus coupled to the ADC and to a second memory. In another embodiment, a flicker measuring system uses a light sensor, an associated circuit and a portable computing device (PCD), such as a smart phone, to measure an amount of flicker produced by a light source by sending an electrical signal from the light source and associated circuit via an audio output to an audio sub-system of the PCD, so that the PCD may calculate the flicker value.