US 11,725,808 B2
Carry-signal controlled LED light with low power consumption and LED light string having the same
Wen-Chi Peng, New Taipei (TW)
Assigned to SEMISILICON TECHNOLOGY CORP., New Taipei (TW)
Filed by Semisilicon Technology Corp., New Taipei (TW)
Filed on Jun. 11, 2021, as Appl. No. 17/346,110.
Application 17/346,110 is a continuation of application No. 16/444,284, filed on Jun. 18, 2019, granted, now 11,085,620.
Claims priority of application No. 201910384047.5 (CN), filed on May 9, 2019.
Prior Publication US 2021/0302013 A1, Sep. 30, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. F21V 23/00 (2015.01); F21S 4/20 (2016.01); H05B 45/00 (2022.01); F21V 23/02 (2006.01); H05B 45/54 (2020.01)
CPC F21V 23/003 (2013.01) [F21S 4/20 (2016.01); F21V 23/023 (2013.01); H05B 45/00 (2020.01); H05B 45/54 (2020.01)] 18 Claims
OG exemplary drawing
 
1. A carry-signal controlled LED light with low power consumption, comprising:
at least one LED, and
a drive unit coupled to the at least one LED, the drive unit configured to receive a carry light signal including a plurality of pulse waves to control the at least one LED, the drive unit comprising a light control unit and an oscillator, and the light control unit configured to drive luminous behaviors of the at least one LED according to a light command content of the carry light signal, wherein the light command content is specific identified encoded content corresponding to the luminous behaviors,
wherein when a voltage of the carry light signal is less than a low-level voltage, the light control unit entering an eco mode by first turning off analog circuits with higher power consumption with the exception of the oscillator or circuits related to the oscillator, and the light control unit configured to detect and identify signals within a time interval, and
wherein a time length of the time interval is a plurality of clock cycles; after the time interval, the light control unit entering a sleep mode.