发明名称 |
USB connector for wireless communication device |
摘要 |
A Universal Serial Bus (USB) apparatus for USB communication is provided. The USB apparatus includes a Printed Circuit Board (PCB) including a circuit for communicating data with an external device according to a USB communication standard, a connector for connecting to a USB terminal of the external device, and a noise reduction circuit connected between an output terminal of the PCB and the connector for reducing noise of a data signal. The noise reduction circuit includes a common-mode filter for removing harmonic components generated between a ‘+’ data signal and a ‘−’ data signal and passing the ‘+’ data signal and the ‘−’ data signal, which operate in a differential mode. |
申请公布号 |
US9009381(B2) |
申请公布日期 |
2015.04.14 |
申请号 |
US201113191060 |
申请日期 |
2011.07.26 |
申请人 |
Samsung Electronics Co., Ltd. |
发明人 |
Kim Jung-Min;Jeong Joong-Ho;Kim Kyung-Ho;Kim Yong-Sup;Lim Dong-Soon |
分类号 |
G06F13/20;H03H7/00;H03H1/00 |
主分类号 |
G06F13/20 |
代理机构 |
Jefferson IP Law, LLP |
代理人 |
Jefferson IP Law, LLP |
主权项 |
1. A Universal Serial Bus (USB) apparatus for USB communication, the USB apparatus comprising:
a Printed Circuit Board (PCB) including a circuit configured to communicate a data signal to an external device according to a USB communication standard; a connector configured to connect to a USB terminal of the external device; and a noise reduction circuit connected between an output terminal of the PCB and the connector, the noise reduction circuit configured to reduce high-frequency noise of the data signal comprising a ‘+’ data signal and a ‘−’ data signal, wherein the noise reduction circuit includes:
a common-mode filter configured to remove harmonic components generated between the ‘+’ data signal and the ‘−’ data signal and to pass the ‘+’ data signal and the ‘−’ data signal, which operate in a differential mode, anda first bypass capacitor connected between a ground line and a ‘+’ data line for outputting the ‘+’ data signal and a second bypass capacitor connected between the ground line and a ‘−’ data line for outputting the ‘−’ data signal, the first and second bypass capacitors respectively configured to block the high-frequency noise included in the ‘+’ and ‘−’ data signals, and wherein a rating of the first and second bypass capacitors is less than or equal to 10 pico Farad (pF). |
地址 |
Suwon-si KR |