View source for Apple inc. (20250067595). Electronic Devices With Ambient Flicker Detection

=Electronic Devices With Ambient Flicker Detection=


==Organization Name==

[[:Category:apple inc.|apple inc.]]


[[Category:apple inc.]]

==Inventor(s)==

[[:Category:Anand K. Chamakura of San Jose CA (US)|Anand K. Chamakura of San Jose CA (US)]][[Category:Anand K. Chamakura of San Jose CA (US)]]

[[:Category:Stephen N. Sweet of San Jose CA (US)|Stephen N. Sweet of San Jose CA (US)]][[Category:Stephen N. Sweet of San Jose CA (US)]]

[[:Category:Ali Motamed of San Francisco CA (US)|Ali Motamed of San Francisco CA (US)]][[Category:Ali Motamed of San Francisco CA (US)]]

[[:Category:Dong Zheng of Los Altos CA (US)|Dong Zheng of Los Altos CA (US)]][[Category:Dong Zheng of Los Altos CA (US)]]

[[:Category:Jianjun Guo of San Jose CA (US)|Jianjun Guo of San Jose CA (US)]][[Category:Jianjun Guo of San Jose CA (US)]]

[[:Category:Chau H. Nguyen of Santa Clara CA (US)|Chau H. Nguyen of Santa Clara CA (US)]][[Category:Chau H. Nguyen of Santa Clara CA (US)]]

==Electronic Devices With Ambient Flicker Detection==


This abstract first appeared for US patent application 20250067595 titled 'Electronic Devices With Ambient Flicker Detection

==Original Abstract Submitted==

an electronic device may have a sensor to measure ambient flicker. the sensor may be a sigma-delta converter. the flicker may be calculated based on the voltage output of the sigma-delta converter and the number of times the sigma-delta converter is triggered during a predetermined period, thereby reducing the voltage output. in particular, a fast fourier transform (fft) may be used on these values to determine the flicker. if desired, filtering and/or non-uniform sampling may be incorporated to avoid aliasing. additionally or alternatively, a lomb-scargle spectral analysis may be used to prevent the attenuation of the measured flicker signals. as an alternative to using a sigma-delta converter to determine ambient flicker, a folding capacitive transimpedance amplifier (c-tia) circuit or a circuit with an analog to digital converter and digital filter may be used to measure the ambient flicker.



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