公开(公告)号：US12050248B2

公开(公告)日：2024-07-30

申请号：US18304691

申请日：2023-04-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yu Huang ,  Weiwei Zhang

IPC: G01R31/3183 ,  G01R31/28 ,  G01R31/317 ,  G01R31/3177 ,  G01R31/3185 ,  H03K19/173 ,  H03K19/21

CPC classification number: G01R31/318335 ,  G01R31/31713 ,  G01R31/3177 ,  G01R31/318536 ,  H03K19/1733 ,  H03K19/21 ,  G01R31/2834

Abstract: This application provides decompression circuits. An example decompression circuit includes a plurality of sub-circuits. The sub-circuit includes a plurality of cellular automaton (CA) circuits and a phase shifter. Each of the plurality of CA circuits includes a first XOR circuit and a register. The first XOR circuit includes a first input end, a second input end, and an output end. A data input end of the register is coupled to the output end of the first XOR circuit. A data output end of the register is coupled to the first input end of the first XOR circuit and an input end of the phase shifter. The data output end of the register is further coupled to the second input end of the first XOR circuit in a different CA circuit. The phase shifter is configured to output a test signal.

公开(公告)号：US11747580B2

公开(公告)日：2023-09-05

申请号：US17851705

申请日：2022-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Song Yang ,  Sufei Miao ,  Zhigang Wang ,  Liang Xu ,  Yu Huang

IPC: H04B10/00 ,  G02B6/42 ,  H05K9/00

CPC classification number: G02B6/4277 ,  G02B6/426 ,  H05K9/0058 ,  G02B6/428

Abstract: An optical port shielding and fastening apparatus is configured to be installed in the optical module. The optical module includes a housing assembly and an optical component located in the housing assembly. The optical port shielding and fastening apparatus includes a fastener and an electromagnetic wave absorbing piece. The fastener is fastened in the housing assembly. The electromagnetic wave absorbing piece is fastened on a side that is of the fastener and that faces an outside of the housing assembly. A first mounting hole and a second mounting hole are correspondingly provided on the fastener and the electromagnetic wave absorbing piece. The optical component passes through the first mounting hole and the second mounting hole in sequence. This application provides an optical port shielding and fastening apparatus, an optical module, and a communications device, to resolve poor optical port shielding performance of an optical module in the related technology.