专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09972903B2 Communication device 有权
公开(公告)号：US09972903B2
公开(公告)日：2018-05-15
申请号：US14896915
申请日：2014-09-12
申请人： TOKIN CORPORATION
发明人： Kazumasa Makita , Masaki Kurimoto , Koji Sato , Masashi Mori
IPC分类号： H01Q1/50 , H01Q1/00 , H01Q9/04 , H04B1/04 , H04B1/18
CPC分类号： H01Q1/50 , H01Q1/002 , H01Q9/04 , H04B1/0458 , H04B1/18
摘要： A communication device includes an antenna unit, a switch unit, a matching unit which is connected between the antenna and switch units, a communication unit which is connected to the switch unit, and a switch control unit. When the switch unit is in a conductive state, the matching unit matches a first impedance occurring if the antenna unit is seen from the matching unit and a second impedance occurring if the switch unit is seen from the matching unit. The switch control unit controls the switch unit so that the switch unit is set to the conductive state when the communication unit communicates via the antenna unit, and so that the switch unit is set to an interrupted state when the communication unit is to be protected from overvoltage. The switch control unit and switch unit are semiconductors formed under a first process rule and second process rule, respectively.

2. 发明授权

US10524399B2 Device including a transmission line 有权
公开(公告)号：US10524399B2
公开(公告)日：2019-12-31
申请号：US15895264
申请日：2018-02-13
申请人： TOKIN CORPORATION
发明人： Masaki Kurimoto , Koichi Kondo , Masashi Ikeda
IPC分类号： H05K9/00 , H01B7/04 , H01B7/00 , H01B11/06 , H01B7/08
摘要： A device is provided with a PWM signal generating circuit, a gate driver and a transmission line connecting them. The transmission line transmits a PWM signal output from the PWM generator as an input signal for the gate driver. A noise suppression member is provided to at least a part of a periphery of the transmission line. The noise suppression member has a structure that magnetic powder is dispersed in a binder and has an imaginary part μ″ of a complex magnetic permeability that is greater than or equal to 5 and smaller than or equal to 30 in a range of 500 MHz to 3 GHz. The noise suppression member has a thickness t greater than or equal to 20 μm. The noise suppression member is disposed apart from a conducting wire of the transmission line by a distance greater than 0.05 mm or smaller than or equal to 5 mm.

3. 发明申请

US20150280429A1 COMMUNICATION APPARATUS AND ELECTRONIC DEVICE 审中-公开
标题翻译：通信设备和电子设备
公开(公告)号：US20150280429A1
公开(公告)日：2015-10-01
申请号：US14646482
申请日：2014-02-07
申请人： NEC TOKIN CORPORATION
发明人： Kazumasa Makita , Junetsu Urata , Yuichi Sakurai , Koji Sato , Masashi Mori , Masaki Kurimoto
IPC分类号： H02H9/04 , H02J17/00
CPC分类号： H02J7/025 , H02H3/20 , H02H9/04 , H02J5/005 , H02J17/00 , H02J50/00
摘要： A communication apparatus includes: a communication antenna, a communication unit which can transmit and receive signals, a switch connected between the communication antenna and the communication unit and composed of a semiconductor switch, a switch control unit, and a high-voltage output means. The switch, when receiving a connection command signal causes the communication unit to be electrically connected with the communication antenna, and when not receiving the signal cuts them off. The switch control unit outputs the signal to the switch under prescribed conditions, and stops the signal when overvoltage applied to the communication unit is detected. The high-voltage output means, connected between the switch control unit and the switch, sets voltage of the signal received from the switch control unit to a voltage at which the communication unit in a transmitting mode would not be cut off from the communication antenna, and outputs the voltage to the switch.
摘要翻译：通信装置包括：通信天线，可以发送和接收信号的通信单元，连接在通信天线和通信单元之间并由半导体开关，开关控制单元和高压输出装置组成的开关。该开关在接收到连接命令信号时，使通信单元与通信天线电连接，并且当不接收到该信号时，切换它们。开关控制单元在规定的条件下将信号输出到开关，并且在检测到对通信单元施加过电压时停止信号。连接在开关控制单元和开关之间的高电压输出装置将从开关控制单元接收的信号的电压设置为不会从通信天线切断发送模式的通信单元的电压，并将电压输出到开关。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式