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

US07196583B2 Power control of a power amplifier 有权
标题翻译：功率放大器的功率控制
公开(公告)号：US07196583B2
公开(公告)日：2007-03-27
申请号：US11176038
申请日：2005-07-07
申请人： John Christopher Clifton , Simon Denny , Anthony Eaton
发明人： John Christopher Clifton , Simon Denny , Anthony Eaton
IPC分类号： H03G3/10
CPC分类号： H03F3/24 , H03F1/0211 , H03F2200/408 , H03F2200/451 , H03F2200/504
摘要： To effect power control of a power amplifier 2 having three amplifier stages 3, 4 and 5 used to amplify input signals modulated in accordance with a variable envelope modulation scheme, there is used a power amplifier 2 having a gain which reduces as the supply voltage to the power amplifier 2 reduces, and the output power POUT of the power amplifier 2 is controlled by regulation of the supply voltage VS. Taking advantage of the reduction in gain of the power amplifier 2, it is ensured that, in respect of each respective amplifier stage 3, 4 and 5 and at each respective value of the supply voltage in the voltage control range, the output power POUT of the respective amplifier stage 3, 4 and 5 is less than the saturation output power PSAT of the respective amplifier stage 3, 4 and 5. As a result, distortion of the signal is reduced. The power control technique improves efficiency over known techniques of backing off the output power and using a variable gain amplifier stage to control the output power.
摘要翻译：为了实现功率放大器2的功率控制，功率放大器2具有用于放大根据可变包络调制方案调制的输入信号的三个放大器级3,4和5，功率放大器2的功率放大器2具有作为电源电压降低的增益功率放大器2减小，功率放大器2的输出功率P OUT OUT由电源电压V SUB的调节来控制。利用功率放大器2的增益的降低，确保对于各个放大器级3,4和5以及电压控制范围内的电源电压的各个值，输出功率P < 相应的放大器级3,4和5的“输出”OUT小于相应的放大器级3,4和5的饱和输出功率P SAT

2. 发明授权

US09215720B2 LTE frequency channel avoidance 有权
标题翻译： LTE频道避免
公开(公告)号：US09215720B2
公开(公告)日：2015-12-15
申请号：US13638824
申请日：2011-03-18
申请人： John Christopher Clifton , John Nicholas Wilson
发明人： John Christopher Clifton , John Nicholas Wilson
IPC分类号： H04W72/00 , H04W72/08 , H04W16/14 , H04W72/04
CPC分类号： H04W16/12 , H04W4/023 , H04W16/14 , H04W72/04 , H04W72/082
摘要： A method of reducing interference to reception of streams of television content received at a television receiver in which each of the streams of television content are transmitted on one of a plurality of frequency channels in accordance with a channel map which defines on which of the plurality of frequency channels each stream of television content is transmitted and the interference being caused by a base station transmitting data to or receiving data from one or more mobile devices via radio communication signals in a vicinity of the television receiver. The method includes identifying the channel map and adapting a transmission of the radio communication signals between the base station and the one or more of mobile devices in accordance with the identified channel map to reduce interference at the television receiver.
摘要翻译：一种降低对在电视接收机接收的电视接收流的接收干扰的方法，其中电视内容的每一个在多个频道中的一个频道上被发送，该频道图根据定义了多个频率信道传输电视内容的每个流，并且干扰是由基站通过电视接收机附近的无线电通信信号向一个或多个移动设备发送数据或从其接收数据引起的。所述方法包括：根据所识别的频道映射，识别频道映射并适应基站与一个或多个移动设备之间的无线电通信信号的传输，以减少电视接收机的干扰。

3. 发明申请

US20130076987A1 METHOD, AUDIO/VIDEO APPARATUS AND COMMUNICATION DEVICE 审中-公开
标题翻译：方法，音频/视频设备和通信设备
公开(公告)号：US20130076987A1
公开(公告)日：2013-03-28
申请号：US13636538
申请日：2011-03-29
申请人： John Nicholas Wilson , John Christopher Clifton
发明人： John Nicholas Wilson , John Christopher Clifton
IPC分类号： H04N5/50
CPC分类号： H04N5/50 , H04W16/14 , H04W52/146 , H04W52/244 , H04W52/245 , H04W52/246
摘要： A method and apparatus reducing interference to reception of television signals received by a television receiver. The television receiver includes an antenna receiving television signals and a tuner selecting the television signals transmitted on a carrier signal. The interference is produced by a communication device transmitting radio communication signals that can be received by the television receiver when the tuner is tuned to the television signals. The method transmits a radio beacon signal from a location substantially same as a location of the television receiver, and if the radio beacon signal is detected at the communication device, adapts transmission of the radio communication signals from the communication device to reduce interference at the television receiver. As examples, the communications device is a mobile communications device, mobile telephone, personal computer, or a base station, for example disposed within a house for forming a femto cell.
摘要翻译：一种减少对电视接收机接收的电视信号的干扰的方法和装置。电视接收机包括接收电视信号的天线和选择在载波信号上发送的电视信号的调谐器。当调谐器被调谐到电视信号时，通过发送无线电通信信号的通信装置产生干扰。该方法从与电视接收机的位置基本相同的位置发送无线电信标信号，并且如果在通信设备处检测到无线电信标信号，则适配来自通信设备的无线电通信信号的传输以减少电视机的干扰接收器。作为示例，通信设备是移动通信设备，移动电话，个人计算机或基站，例如设置在用于形成毫微微小区的房屋内。

4. 发明申请

US20120243590A1 DEVICE FOR USE IN A POWER LINE COMMUNICATION SYSTEM, POWER LINE COMMUNICATION SYSTEMS AND POWER LINE COMMUNICATION METHOD 有权
标题翻译：用于电力线通信系统的设备，电力线通信系统和电力线通信方法
公开(公告)号：US20120243590A1
公开(公告)日：2012-09-27
申请号：US13502774
申请日：2010-10-12
申请人： Andreas Schwager , Dietmar Schill , John Christopher Clifton
发明人： Andreas Schwager , Dietmar Schill , John Christopher Clifton
IPC分类号： H04B3/54 , H04B1/38
CPC分类号： H04B3/56 , H04B2203/5454 , H04B2203/5491
摘要： A device including a power input supplying external AC power to the device via a power cord, a filter filtering noise from outside of the supplied external AC power and thereby generating a filtered AC power, at least one power socket supplying the filtered AC power to at least one other device, and a PLC modem configured to be connected to the at least one power socket and to transmit data to or receive data from the at least one other device via power line communication using the filtered AC power. The device may be used in power line communication systems. A power line communication method uses the device for isolating a power line communication network from a mains grid.
摘要翻译：一种设备，包括经由电源线向设备提供外部AC电力的电力输入，滤波器从提供的外部AC电力外部过滤噪声，从而产生滤波的AC电力;至少一个电源插座，用于将滤波的AC电力提供给至少一个其他设备，以及配置成连接到所述至少一个电源插座的PLC调制解调器，并且经由经过滤波的AC电力的电力线通信，向所述至少一个其他设备发送数据或从所述至少一个其他设备接收数据。该装置可用于电力线通信系统。电力线通信方法使用用于将电力线通信网络与电网隔离的装置。

5. 发明申请

US20110241782A1 POWER AMPLIFIER 有权
标题翻译：功率放大器
公开(公告)号：US20110241782A1
公开(公告)日：2011-10-06
申请号：US13015024
申请日：2011-01-27
申请人： John Christopher CLIFTON
发明人： John Christopher CLIFTON
IPC分类号： H03F3/68
CPC分类号： H03F1/0222 , H03F1/0261 , H03F1/0277 , H03F3/193 , H03F3/211 , H03F3/245 , H03F3/72 , H03F2200/111 , H03F2200/171 , H03F2200/18 , H03F2200/27 , H03F2200/271 , H03F2200/366 , H03F2200/405 , H03F2200/414 , H03F2200/417 , H03F2200/421 , H03F2200/429 , H03F2200/451 , H03F2200/471 , H03F2200/504 , H03F2200/507 , H03F2200/511 , H03F2200/516 , H03F2200/525 , H03F2200/54 , H03F2203/21145 , H03F2203/21157 , H03F2203/21175 , H03F2203/21178 , H03F2203/21193 , H03F2203/7206 , H03F2203/7209 , H03F2203/7227 , H03F2203/7236
摘要： A power amplifier comprises a series stack of power amplifier devices, connected in parallel to the amplifier input for receiving an RF input signal, and having output terminals being connected in series to the amplifier output. An intermediate coupling capacitor is connected between each adjacent pair of power amplifier devices in the series stack of power amplifier devices for DC isolation of said power amplifier devices. This reduces the required DC supply voltage, as well as allowing shorting of individual power amplifier devices in response to variation in the DC supply voltage.
摘要翻译：功率放大器包括串联的功率放大器装置，并联连接到放大器输入端，用于接收RF输入信号，并具有与放大器输出串联连接的输出端。中间耦合电容器连接在用于所述功率放大器装置的DC隔离的功率放大器装置的串联堆叠中的每对相邻功率放大器装置之间。这减少了所需的直流电源电压，并且响应于直流电源电压的变化，允许各个功率放大器装置短路。

6. 发明授权

US06996376B2 Antenna switch 有权
公开(公告)号：US06996376B2
公开(公告)日：2006-02-07
申请号：US10163916
申请日：2002-06-06
申请人： John Christopher Clifton
发明人： John Christopher Clifton
IPC分类号： H04B1/44 , H03F1/14 , H01P5/12
CPC分类号： H04B1/44 , H04B1/3877
摘要： An antenna switch including a transmit connection for inputting a radio frequency signal, an antenna connection for connection to an antenna for transmitting the radio frequency signal, and a signal path between transmit connection and the antenna connection including at least one transmit transistor controllable to connect selectively the transmit connection to the antenna connection so as to transfer the radio frequency signal from the transmit connection to the antenna connection wherein the transmit transistor is arranged so as to provide a stage of amplification to the radio frequency signal.

7. 发明授权

US09025647B2 Device for use in a power line communication system, power line communication systems and power line communication method 有权
标题翻译：设备用于电力线通信系统，电力线通信系统和电力线通信方式
公开(公告)号：US09025647B2
公开(公告)日：2015-05-05
申请号：US13502774
申请日：2010-10-12
申请人： Andreas Schwager , Dietmar Schill , John Christopher Clifton
发明人： Andreas Schwager , Dietmar Schill , John Christopher Clifton
IPC分类号： H04B1/38 , H04B3/56
CPC分类号： H04B3/56 , H04B2203/5454 , H04B2203/5491
摘要： A device including a power input supplying external AC power to the device via a power cord, a filter filtering noise from outside of the supplied external AC power and thereby generating a filtered AC power, at least one power socket supplying the filtered AC power to at least one other device, and a PLC modem configured to be connected to the at least one power socket and to transmit data to or receive data from the at least one other device via power line communication using the filtered AC power. The device may be used in power line communication systems. A power line communication method uses the device for isolating a power line communication network from a mains grid.
摘要翻译：一种设备，包括经由电源线向设备提供外部AC电力的电力输入，滤波器从提供的外部AC电力外部过滤噪声，从而产生滤波的AC电力;至少一个电源插座，用于将滤波的AC电力提供给至少一个其他设备，以及配置成连接到所述至少一个电源插座的PLC调制解调器，并且经由经过滤波的AC电力的电力线通信，向所述至少一个其他设备发送数据或从所述至少一个其他设备接收数据。该装置可用于电力线通信系统。电力线通信方法使用用于将电力线通信网络与电网隔离的装置。

8. 发明申请

US20130090125A1 LTE FREQUENCY CHANNEL AVOIDANCE 有权
标题翻译： LTE频道通道避免
公开(公告)号：US20130090125A1
公开(公告)日：2013-04-11
申请号：US13638824
申请日：2011-03-18
申请人： John Christopher Clifton , John Nicholas Wilson
发明人： John Christopher Clifton , John Nicholas Wilson
IPC分类号： H04W72/08
CPC分类号： H04W16/12 , H04W4/023 , H04W16/14 , H04W72/04 , H04W72/082
摘要： A method of reducing interference to reception of streams of television content received at a television receiver in which each of the streams of television content are transmitted on one of a plurality of frequency channels in accordance with a channel map which defines on which of the plurality of frequency channels each stream of television content is transmitted and the interference being caused by a base station transmitting data to or receiving data from one or more mobile devices via radio communication signals in a vicinity of the television receiver. The method includes identifying the channel map and adapting a transmission of the radio communication signals between the base station and the one or more of mobile devices in accordance with the identified channel map to reduce interference at the television receiver.
摘要翻译：一种降低对在电视接收机接收的电视接收流的接收干扰的方法，其中电视内容的每一个在多个频道中的一个频道上被发送，该频道图根据定义了多个频率信道传输电视内容的每个流，并且干扰是由基站通过电视接收机附近的无线电通信信号向一个或多个移动设备发送数据或从其接收数据引起的。所述方法包括：根据所识别的频道映射，识别频道映射并适应基站与一个或多个移动设备之间的无线电通信信号的传输，以减少电视接收机的干扰。

9. 发明授权

US08253485B2 Power amplifier 有权
标题翻译：功率放大器
公开(公告)号：US08253485B2
公开(公告)日：2012-08-28
申请号：US13015024
申请日：2011-01-27
申请人： John Christopher Clifton
发明人： John Christopher Clifton
IPC分类号： H03F1/14 , H03F3/16
CPC分类号： H03F1/0222 , H03F1/0261 , H03F1/0277 , H03F3/193 , H03F3/211 , H03F3/245 , H03F3/72 , H03F2200/111 , H03F2200/171 , H03F2200/18 , H03F2200/27 , H03F2200/271 , H03F2200/366 , H03F2200/405 , H03F2200/414 , H03F2200/417 , H03F2200/421 , H03F2200/429 , H03F2200/451 , H03F2200/471 , H03F2200/504 , H03F2200/507 , H03F2200/511 , H03F2200/516 , H03F2200/525 , H03F2200/54 , H03F2203/21145 , H03F2203/21157 , H03F2203/21175 , H03F2203/21178 , H03F2203/21193 , H03F2203/7206 , H03F2203/7209 , H03F2203/7227 , H03F2203/7236
摘要： A power amplifier comprises a series stack of power amplifier devices, connected in parallel to the amplifier input for receiving an RF input signal, and having output terminals being connected in series to the amplifier output. An intermediate coupling capacitor is connected between each adjacent pair of power amplifier devices in the series stack of power amplifier devices for DC isolation of said power amplifier devices. This reduces the required DC supply voltage, as well as allowing shorting of individual power amplifier devices in response to variation in the DC supply voltage.
摘要翻译：功率放大器包括串联的功率放大器装置，并联连接到放大器输入端，用于接收RF输入信号，并具有与放大器输出串联连接的输出端。中间耦合电容器连接在用于所述功率放大器装置的DC隔离的功率放大器装置的串联堆叠中的每对相邻功率放大器装置之间。这减少了所需的直流电源电压，并且响应于直流电源电压的变化，允许各个功率放大器装置短路。

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