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. 发明申请

US20050249484A1 Wireless digital music playing and transmitting device for portable DVD/CD player 审中-公开
标题翻译：用于便携式DVD / CD播放器的无线数字音乐播放和发送设备
公开(公告)号：US20050249484A1
公开(公告)日：2005-11-10
申请号：US11125070
申请日：2005-05-10
申请人： Man Ng , Ya Cao , Ming Wang
发明人： Man Ng , Ya Cao , Ming Wang
IPC分类号： H04B20060101 , H04N5/781 , H04R5/00
CPC分类号： H04N21/43637 , H04N21/2143 , H04N21/8113 , H04R5/00
摘要： A wireless digital music playing and transmitting device installed on the portable DVD/CD player wherein a transmitter having a functional interface consists of a central processing and audio frequency AD converting circuit, a radio-frequency module, an indicating lamp and a power control circuit; output terminals of the central processing and audio frequency AD converting circuit are connected to the radio frequency module, the indicating lamp and the power control circuit; a receiver consists of at least one set of switching circuits, a radio-frequency receiving module, a central processing and AD converting circuit and an audio-frequency amplifier circuit; output terminals of said radio-frequency receiving module are connected to the central processing and AD converting circuit, output terminals of the central processing and AD converting circuit are connected to the audio-frequency amplifier circuit which is provided with a functional interface.
摘要翻译：一种安装在便携式DVD / CD播放器上的无线数字音乐播放和发送装置，其中具有功能接口的发射机包括中央处理和音频AD转换电路，射频模块，指示灯和功率控制电路; 中央处理和音频AD转换电路的输出端连接到射频模块，指示灯和电源控制电路; 接收机由至少一组开关电路，射频接收模块，中央处理和AD转换电路和音频放大器电路组成。所述射频接收模块的输出端子连接到中央处理和AD转换电路，中央处理和AD转换电路的输出端子连接到具有功能接口的音频放大器电路。

2. 发明授权

US07855399B2 Protection device of programmable semiconductor surge suppressor having deep-well structure 有权
标题翻译：具有深井结构的可编程半导体浪涌抑制器保护装置
公开(公告)号：US07855399B2
公开(公告)日：2010-12-21
申请号：US12585820
申请日：2009-09-25
申请人： Walance Sun , Ken Ou , Shouming Zhang , Man Ng
发明人： Walance Sun , Ken Ou , Shouming Zhang , Man Ng
IPC分类号： H01L29/73
CPC分类号： H01L27/0262
摘要： A protection device of programmable semiconductor surge suppressor having deep-well structure is provided comprising one, two or four protection units, each of which is composed of a PN-junction diode, a PNPN-type thyristor and a NPN-type triode connected with each other. It is characterized in that in the diode area on the frontal side of the N-type semiconductor base is formed a PN junction with impurity concentration changed gradiently from top to bottom according to the order of P+, P, N and N+; and a group of deep-wells with P-type impurities are positioned at the interface of the PN junction, making the PN junction form a concave-convex type interface. The present invention can be used in the program-controlled switchboard to protect the Subscriber Line Interface Circuit (SLIC) board. The above improvement can further improve the anti-lightning and anti-surge performance and the energy discharge capability of the whole device. The device of the present invention can reach a level of 3000˜3500 V according to the anti-lightning performance test.
摘要翻译：提供具有深阱结构的可编程半导体浪涌抑制器的保护装置，其包括一个，两个或四个保护单元，每个保护单元由PN结二极管，PNPN型晶闸管和与每个保护单元连接的NPN型三极管组成其他。其特征在于，在N型半导体基座的正面侧的二极管区域中，按照P +，P，N和N +的顺序，形成从上到下逐渐变化的杂质浓度的PN结; 并且一组具有P型杂质的深阱位于PN结的界面处，使得PN结形成凹凸型界面。本发明可用于程控交换机中以保护用户线接口电路（SLIC）板。上述改进可以进一步提高整个设备的防雷击和抗浪涌性能和能量放电能力。根据防雷击性能试验，本发明的装置可以达到3000〜3500V的水平。

3. 发明申请

US20100181597A1 Protection device of programmable semiconductor surge suppressor having deep-well structure 有权
公开(公告)号：US20100181597A1
公开(公告)日：2010-07-22
申请号：US12585820
申请日：2009-09-25
申请人： Walance Sun , Ken Ou , Shouming Zhang , Man Ng
发明人： Walance Sun , Ken Ou , Shouming Zhang , Man Ng
IPC分类号： H01L27/06
CPC分类号： H01L27/0262
摘要： A protection device of programmable semiconductor surge suppressor having deep-well structure is provided comprising one, two or four protection units, each of which is composed of a PN-junction diode, a PNPN-type thyristor and a NPN-type triode connected with each other. It is characterized in that in the diode area on the frontal side of the N-type semiconductor base is formed a PN junction with impurity concentration changed gradiently from top to bottom according to the order of P+, P, N and N+; and a group of deep-wells with P-type impurities are positioned at the interface of the PN junction, making the PN junction form a concave-convex type interface. The present invention can be used in the program-controlled switchboard to protect the Subscriber Line Interface Circuit (SLIC) board. The above improvement can further improve the anti-lightning and anti-surge performance and the energy discharge capability of the whole device. The device of the present invention can reach a level of 3000˜3500 V according to the anti-lightning performance test.

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