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1. 发明授权

US08027644B2 Transceiver system including dual low-noise amplifiers 有权
标题翻译：收发系统包括双低音放大器
公开(公告)号：US08027644B2
公开(公告)日：2011-09-27
申请号：US12881226
申请日：2010-09-14
申请人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse
发明人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse
IPC分类号： H04B1/38
CPC分类号： H04B1/0064 , H04B7/0805
摘要： A transceiver system includes a first receive path with a first antenna configured to receive first signals, a first configuration switch, a first low noise amplifier configured to amplify the first signals, a second configuration switch, and a receiver. The first receive path is selectively configured to supply the amplified first signals to the receiver via the first antenna, the first configuration switch, the first low noise amplifier, and the second configuration switch. A second receive path includes a second antenna configured to receive second signals, a second low noise amplifier configured to amplify the second signals, the second configuration switch, and the receiver. The second receive path (i) includes fewer configuration switches than the first receive path and (ii) is selectively configured to supply the amplified second signals to the receiver via the second antenna, the second low noise amplifier, and the second configuration switch.
摘要翻译：收发机系统包括具有被配置为接收第一信号的第一天线的第一接收路径，第一配置开关，被配置为放大第一信号的第一低噪声放大器，第二配置开关和接收器。第一接收路径被选择性地配置为经由第一天线，第一配置开关，第一低噪声放大器和第二配置开关将放大的第一信号提供给接收器。第二接收路径包括被配置为接收第二信号的第二天线，配置成放大第二信号的第二低噪声放大器，第二配置开关和接收器。第二接收路径（i）包括比第一接收路径更少的配置开关，以及（ii）被选择性地配置为经由第二天线，第二低噪声放大器和第二配置开关将经放大的第二信号提供给接收机。

2. 发明授权

US07796952B1 Transceiver system including dual low-noise amplifiers 有权
标题翻译：收发系统包括双低音放大器
公开(公告)号：US07796952B1
公开(公告)日：2010-09-14
申请号：US10701626
申请日：2003-11-06
申请人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse
发明人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse
IPC分类号： H04B1/38
CPC分类号： H04B1/0064 , H04B7/0805
摘要： A system for communicating information signals includes a receiver in selective communication with a first antenna and a second antenna. The receiver is configured to selectively receive information signals via the first or second antenna. The system includes a first low-noise amplifier in communication with the first antenna and in selective communication with the receiver. The first low-noise amplifier is configured to amplify a first information signal received by the first antenna to generate a first amplified signal. The system includes a second low-noise amplifier in communication with the second antenna and in selective communication with the receiver. At least the first and second low-noise amplifiers are formed on a monolithic substrate. The second low-noise amplifier is configured to amplify a second information signal received by the second antenna to generate a second amplified signal. Either the first or second amplified signal is selectively applied to the receiver.
摘要翻译：用于传送信息信号的系统包括与第一天线和第二天线选择性通信的接收机。接收器被配置为经由第一或第二天线选择性地接收信息信号。该系统包括与第一天线通信并与接收机选择性通信的第一低噪声放大器。第一低噪声放大器被配置为放大由第一天线接收的第一信息信号以产生第一放大信号。该系统包括与第二天线通信并与接收机选择性通信的第二低噪声放大器。至少第一和第二低噪声放大器形成在单片基板上。第二低噪声放大器被配置为放大由第二天线接收的第二信息信号以产生第二放大信号。第一或第二放大信号被选择性地施加到接收器。

3. 发明授权

US07454634B1 Power savings apparatus and method for wireless network devices 有权
标题翻译：无线网络设备的省电设备和方法
公开(公告)号：US07454634B1
公开(公告)日：2008-11-18
申请号：US11070481
申请日：2005-03-02
申请人： Timothy Donovan , Shafiq Jamal , Yonghua Song , Chia-Chun Chung , Tam Tran , Lawrence Tse
发明人： Timothy Donovan , Shafiq Jamal , Yonghua Song , Chia-Chun Chung , Tam Tran , Lawrence Tse
IPC分类号： G06F1/32
CPC分类号： H04W52/029 , Y02D70/142 , Y02D70/22
摘要： A wireless network device having active and inactive modes comprises a clock generating module that generates a first clock signal having a first clock rate. A voltage supply module generates a first voltage level and a second voltage level that is less than the first voltage level. A first digital module receives the first clock rate and the first voltage level during the active mode, receives the second voltage level during the inactive mode and does not receive the first clock signal during the inactive mode. A first analog module communicates with the voltage supply module and has reduced current consumption during the inactive mode.
摘要翻译：具有有源和不活动模式的无线网络设备包括产生具有第一时钟速率的第一时钟信号的时钟产生模块。电压供应模块产生小于第一电压电平的第一电压电平和第二电压电平。第一数字模块在活动模式期间接收第一时钟速率和第一电压电平，在非活动模式期间接收第二电压电平，并且在非活动模式期间不接收第一时钟信号。第一模拟模块与电压供应模块通信，并且在非活动模式期间具有减少的电流消耗。

4. 发明授权

US07315197B1 Limit swing charge pump and method thereof 有权
标题翻译：限位摆动电荷泵及其方法
公开(公告)号：US07315197B1
公开(公告)日：2008-01-01
申请号：US11387391
申请日：2006-03-23
申请人： Jun Ming , Randy Tsang , Lawrence Tse
发明人： Jun Ming , Randy Tsang , Lawrence Tse
IPC分类号： G05F1/10
CPC分类号： H02M3/07
摘要： A charge pump comprises a limit swing generator that receives an input signal and that generates a drive signal based on the input signal. A charge pump core includes output switches that generate a charge pump output in response to the drive signal. The drive signal includes a voltage level. The limit swing generator includes at least one voltage generator to control the voltage level of the drive signal such that the drive signal tracks a parametric variable of the output switches.
摘要翻译：电荷泵包括接收输入信号并基于输入信号产生驱动信号的极限摆动发生器。电荷泵芯包括响应于驱动信号产生电荷泵输出的输出开关。驱动信号包括电压电平。极限摆动发生器包括至少一个电压发生器来控制驱动信号的电压电平，使得驱动信号跟踪输出开关的参数变量。

5. 发明授权

US07190230B1 Method and apparatus for an LNA with high linearity and improved gain control 有权
标题翻译：具有高线性度和改进的增益控制的LNA的方法和装置
公开(公告)号：US07190230B1
公开(公告)日：2007-03-13
申请号：US11435995
申请日：2006-05-17
申请人： Xiaodong Jin , Lawrence Tse , King Chun Tsai , George Chien
发明人： Xiaodong Jin , Lawrence Tse , King Chun Tsai , George Chien
IPC分类号： H03F3/04
CPC分类号： H03F3/193 , H03F1/223
摘要： A low noise amplifier (LNA) comprises an amplifier having an inverting input, a non-inverting input and an output. A first transistor has a control input that communicates with said output of said amplifier, a first terminal that generates a LNA output current and a second terminal that communicates with said inverting input. A device communicates with said second terminal of said first transistor, includes an output and has a resistance that is modulated in response to an input voltage to said LNA. The device is a variable resistor.
摘要翻译：低噪声放大器（LNA）包括具有反相输入，非反相输入和输出的放大器。第一晶体管具有与所述放大器的所述输出通信的控制输入端，产生LNA输出电流的第一端子和与所述反相输入端通信的第二端子。与所述第一晶体管的所述第二端子通信的装置包括输出端，并具有响应于所述LNA的输入电压而被调制的电阻。该器件是一个可变电阻器。

6. 发明授权

US07177620B1 Mixer constant linear range biasing apparatus and method 有权
标题翻译：混合器恒定线性范围偏置装置及方法
公开(公告)号：US07177620B1
公开(公告)日：2007-02-13
申请号：US10388920
申请日：2003-03-14
申请人： King Chun Tsai , Lawrence Tse
发明人： King Chun Tsai , Lawrence Tse
IPC分类号： H04B1/28 , H04B1/26
CPC分类号： H03D7/1441 , H03D7/1458 , H03D7/1491 , H03D2200/0043 , H03D2200/0084 , H03D2200/0096
摘要： A Gilbert cell mixer for a wireless transceiver includes a first stage that performs voltage to current conversions and that includes first and second transistors that are operated in a saturation region and third and fourth transistors that are operated in a triode region. A second stage communicates with the first stage and that performs frequency conversion. A biasing circuit communicates with the first stage to maintain a substantially constant input linear range over temperature and process variations.
摘要翻译：用于无线收发器的吉尔伯特单元混合器包括执行电压到电流转换的第一级，并且包括在饱和区域中操作的第一和第二晶体管以及在三极管区域中操作的第三和第四晶体管。第二级与第一级通信并执行频率转换。偏置电路与第一级通信，以保持温度和过程变化之间基本恒定的输入线性范围。

7. 发明授权

US06897729B1 Self-calibrating gain control circuit for low noise amplifier 有权
标题翻译：用于低噪声放大器的自校准增益控制电路
公开(公告)号：US06897729B1
公开(公告)日：2005-05-24
申请号：US10889643
申请日：2004-07-12
申请人： Xiaodong Jin , Lawrence Tse
发明人： Xiaodong Jin , Lawrence Tse
IPC分类号： H03F1/30 , H03F3/18 , H03F3/193 , H03G1/00 , H03F3/04
CPC分类号： H03G1/00 , H03F1/301 , H03F3/193 , H03F2200/294 , H03F2200/372
摘要： An amplifier comprises a Low Noise Amplifier (LNA) that amplifies a Radio Frequency (RF) signal that includes a transconductance, a gain and an input stage that receives the RF signal. A bias assembly includes a bias circuit with a bias resistance and generates a bias current for the input stage of the LNA, which is related to the bias resistance. A shunt feedback stage amplifies an output of the input stage, generates an RF output and includes a shunt resistance. Changes in the bias resistance due to changes in conditions are substantially offset by changes in the shunt resistance due to the changes in conditions, which reduces variation of the gain of the LNA based on the changes in conditions.
摘要翻译：放大器包括放大包括跨导的射频（RF）信号的低噪声放大器（LNA），接收RF信号的增益和输入级。偏置组件包括具有偏置电阻的偏置电路并且产生与偏置电阻相关的LNA的输入级的偏置电流。分路反馈级放大输入级的输出，产生RF输出并且包括分流电阻。由于条件变化导致的分流电阻的变化基本上被条件变化引起的偏置电阻的变化抵消，这样可以根据条件的变化来减小LNA的增益的变化。

8. 发明授权

US06784738B1 Method and apparatus for gain control in a CMOS low noise amplifier 有权
标题翻译： CMOS低噪声放大器中增益控制的方法和装置
公开(公告)号：US06784738B1
公开(公告)日：2004-08-31
申请号：US10301349
申请日：2002-11-20
申请人： Xiaodong Jin , Lawrence Tse
发明人： Xiaodong Jin , Lawrence Tse
IPC分类号： H03F318
CPC分类号： H03G1/00 , H03F1/301 , H03F3/193 , H03F2200/294 , H03F2200/372
摘要： An amplifier comprising a Low Noise Amplifier (LNA) to amplify a Radio Frequency (RF) signal. The LNA having a transconductance and including an input stage to receive the RF signal. The LNA again varying as a function of changes in conditions. A bias assembly to generate a bias current to bias the LNA input stage. The bias assembly configured to reduce variation of the LNA gain to changes in conditions.
摘要翻译：一种放大器，包括用于放大射频（RF）信号的低噪声放大器（LNA）。 LNA具有跨导并且包括用于接收RF信号的输入级。 LNA随条件变化而变化。偏置组件，用于产生偏置电流以偏置LNA输入级。偏置组件被配置为减小LNA增益对条件变化的变化。

9. 发明授权

US08447887B1 Method and apparatus for enabling a network interface to support multiple networks 有权
标题翻译：使网络接口支持多个网络的方法和装置
公开(公告)号：US08447887B1
公开(公告)日：2013-05-21
申请号：US13584341
申请日：2012-08-13
申请人： Peter Loc , Lawrence Tse , Heng-Jui H Hsu
发明人： Peter Loc , Lawrence Tse , Heng-Jui H Hsu
IPC分类号： G06F15/16
CPC分类号： H04L45/02 , H04L12/6418
摘要： A network device comprises a host, including a device driver, and a network interface. The network interface includes a first media access controller, the first media access controller configured to, when activated, use a media access controller address for transferring data from the host to the first network, and transferring data from the first network to the host. A second media access controller is configured to, when activated, also use the media access controller address for transferring data from the host to the second network, and transferring data from the second network to the host. The device driver is configured to select either the first network or the second network for communication with the host, and the first media access controller or the second media access controller is respectively activated in response to the device driver selecting the first network or the second network.
摘要翻译：网络设备包括主机，包括设备驱动器和网络接口。网络接口包括第一媒体访问控制器，第一媒体访问控制器被配置为当被激活时，使用媒体访问控制器地址来将数据从主机传送到第一网络，以及将数据从第一网络传送到主机。第二媒体访问控制器被配置为当被激活时也使用媒体访问控制器地址来从主机传输数据到第二网络，并且将数据从第二网络传送到主机。设备驱动器被配置为选择第一网络或第二网络以与主机通信，并且响应于设备驱动器选择第一网络或第二网络而分别激活第一媒体访问控制器或第二媒体访问控制器。

10. 发明授权

US08369782B1 Bluetooth wideband scan mode 有权
标题翻译：蓝牙宽带扫描模式
公开(公告)号：US08369782B1
公开(公告)日：2013-02-05
申请号：US12190251
申请日：2008-08-12
申请人： Yui Lin , Lawrence Tse , Poh Boon Leong , Minko Tsai , Robert Mack , Yungping Hsu
发明人： Yui Lin , Lawrence Tse , Poh Boon Leong , Minko Tsai , Robert Mack , Yungping Hsu
IPC分类号： H04B7/00 , H04B1/18 , H04W72/00 , H04W4/00
CPC分类号： H04B7/2612 , H03J1/0091
摘要： Different scan modes are provided for Bluetooth devices. In at least some embodiments, a narrowband scanning mode looks for signal energy on individual transmission frequencies at a time. By looking for signal energy rather than decoding transmitted packets, at least some of the components in a Bluetooth device can remain in an idle or rest state. A midband scanning mode looks for signal energy across multiple different frequencies at a time. Again, by looking for signal energy across multiple different frequencies rather than decoding transmitted packets, at least some of the components in a Bluetooth device can remain in an idle or rest state. A wideband scanning mode looks for signal energies across all relevant frequencies at a time. At least some embodiments enable a Bluetooth device to switch between scanning modes.
摘要翻译：为蓝牙设备提供了不同的扫描模式。在至少一些实施例中，窄带扫描模式一次在单个传输频率上寻找信号能量。通过寻找信号能量而不是解码发送的分组，蓝牙设备中的至少一些组件可以保持在空闲或休眠状态。中频扫描模式一次查找多个不同频率的信号能量。再次，通过在多个不同的频率上寻找信号能量而不是解码传输的分组，蓝牙设备中的至少一些组件可以保持在空闲或静止状态。宽带扫描模式一次查找所有相关频率的信号能量。至少一些实施例使得蓝牙设备能够在扫描模式之间切换。

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