公开(公告)号：US20240189520A1

公开(公告)日：2024-06-13

申请号：US18063693

申请日：2022-12-09

申请人： YU-FENG LIU

发明人： YU-FENG LIU

IPC分类号： A61M5/32 ,  A61M5/315

CPC分类号： A61M5/3257 ,  A61M5/31515

摘要： A safety injector includes: an injection module having an injection cylinder and a pullable piston rod; a needle module including a needle seat and an injection needle; the needle seat having a seat body and a buckle. In installation state, a safety sleeve covering movably around the injection cylinder between an installation position and a protection position. In the installing position, a first end portion of the safety sleeve is near the buckle and the second end portion thereof is near the handhold portion; while in the protection position, the first end portion is protruded from the injection cylinder for covering the injection needle and the second end portion is near the head portion of the injection cylinder. An inner side of the sleeve body is formed with a first and a second annular flange; and an annular groove is formed therebetween for confining the buckle.

公开(公告)号：USD545565S1

公开(公告)日：2007-07-03

申请号：US29266674

申请日：2006-09-25

申请人： Kirk B. Newman ,  Alex Yu-Feng Liu

设计人： Kirk B. Newman ,  Alex Yu-Feng Liu

公开(公告)号：US20130330089A1

公开(公告)日：2013-12-12

申请号：US13603066

申请日：2012-09-04

申请人： Chi-Wai Chow ,  Chien-Hung Yeh ,  Yu-Feng Liu ,  Po-Yen Huang

发明人： Chi-Wai Chow ,  Chien-Hung Yeh ,  Yu-Feng Liu ,  Po-Yen Huang

IPC分类号： H04B10/02

CPC分类号： H04B10/116

摘要： A background noise-immune LED-based communication device comprises at least one LED signal transmitter emitting a Manchester code signal generated by a Manchester coding technology; and at least one optical receiver receiving the Manchester code signal from the LED signal transmitter. The present invention applies the Manchester coding technology to visible-light communication devices, enabling the LED-based communication device to transmit the Manchester code signal, whereby is decreased noise and promoted signal quality.

摘要翻译： 基于背景噪声的基于LED的通信设备包括至少一个发射曼彻斯特编码技术产生的曼彻斯特码信号的LED信号发射器; 以及至少一个光接收器，接收来自LED信号发射器的曼彻斯特码信号。 本发明将曼彻斯特编码技术应用于可见光通信设备，使得基于LED的通信设备能够发送曼彻斯特码信号，从而降低噪声并提高信号质量。