US 11,843,391 B2
Temperature feedback control apparatus, method, and system
Xu Sun, Shenzhen (CN); Jiao Wang, Dongguan (CN); Yuchen Liu, Wuhan (CN); Rui Li, Shenzhen (CN); and Nguyen Binh Le, Shenzhen (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed by Huawei Technologies Co., Ltd., Guangdong (CN)
Filed on Sep. 20, 2021, as Appl. No. 17/448,113.
Application 17/448,113 is a continuation of application No. PCT/CN2020/072921, filed on Jan. 19, 2020.
Claims priority of application No. 201910218518.5 (CN), filed on Mar. 21, 2019.
Prior Publication US 2022/0006466 A1, Jan. 6, 2022
Int. Cl. H03M 1/06 (2006.01); H03M 1/08 (2006.01); G02F 7/00 (2006.01)
CPC H03M 1/089 (2013.01) [G02F 7/00 (2013.01); H03M 1/0818 (2013.01); H03M 1/0863 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A temperature feedback control apparatus comprising:
a first electric switch;
a second electric switch, wherein both the first electric switch and the second electric switch are multi-channel electric switches; and
a feedback control unit,
wherein one end of the feedback control unit is connected to at least two optical components, wherein the second electric switch is connected to the other end of the feedback control unit, wherein one channel of the first electric switch is connected to one optical component of the at least two optical components, and wherein one channel of the second electric switch is connected to one optical component of the at least two optical components;
wherein the first electric switch is configured to control that only a first channel is conducted at a moment, to feed back an optical signal of a target optical component connected to the first channel to the feedback control unit, wherein the first channel is a signal channel between the target optical component and the first electric switch, and the target optical component is any one of the at least two optical components;
wherein the feedback control unit is configured to convert the optical signal into an electrical signal, and calculate a temperature of the corresponding optical component based on the electrical signal, to obtain a control signal; and
wherein the second electric switch is configured to control, in response to the first channel being conducted, that only a second channel is conducted, to transmit the control signal to the target optical component, and adjust the temperature of the target optical component, wherein the second channel is a signal channel between the target optical component and the second electric switch.