US 12,033,677 B2
Hard disk indicator circuit and hard disk backplane
Hong-Shuang Wu, Tianjin (CN)
Assigned to Fulian Precision Electronics (Tianjin) Co., LTD., Tianjin (CN)
Filed by Fulian Precision Electronics (Tianjin) Co., LTD., Tianjin (CN)
Filed on Apr. 7, 2023, as Appl. No. 18/132,121.
Claims priority of application No. 202210409174.8 (CN), filed on Apr. 19, 2022.
Prior Publication US 2023/0333951 A1, Oct. 19, 2023
Int. Cl. G11B 5/455 (2006.01); G06F 11/22 (2006.01); G06F 11/273 (2006.01)
CPC G11B 5/455 (2013.01) [G06F 11/2205 (2013.01); G06F 11/273 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A hard disk indicator circuit comprising:
an indicating unit configured for indicating states of the hard disk;
a control unit configured for detecting the states of the hard disk and outputting a control signal according to the states of the hard disk;
a drive unit configured for receiving the control signals and controlling the indicating unit to emit light beams according to the received control signals; and
a verification unit configured for obtaining level state of the indicating unit and determining whether the indicating unit is faulty according to the level value and the control signals.