公开(公告)号：US09866336B2

公开(公告)日：2018-01-09

申请号：US14741870

申请日：2015-06-17

Applicant: Google Inc.

Inventor： Arnd Geis ,  Arnold R. Feldman

IPC: H01Q3/00 ,  H04B17/30 ,  H01Q3/26 ,  H01Q3/34 ,  H04B17/14 ,  H03G1/00 ,  H03K5/1532

CPC classification number: H04B17/30 ,  H01Q3/267 ,  H01Q3/34 ,  H03G1/0017 ,  H03G3/00 ,  H03G3/20 ,  H03G3/301 ,  H03K5/1532 ,  H04B17/14

Abstract: A phased array antenna system includes an array of antennas having first antenna and second antennas disposed equidistantly from a third antenna. The first antenna is associated with a first gain and a first phase and the second antenna is associated with a second gain and a second phase. The first antenna receives a first reference signal corresponding to a calibration reference signal transmitted by the third antenna, and the second antenna receives a second reference signal corresponding to the calibration reference signal transmitted by the third antenna. The second receiver module is configured to adjust the second gain and the second phase associated with the second antenna to match the first gain and the first phase associated with the first antenna by comparing the first reference signal received by the first antenna with the second reference signal received by the second antenna.

公开(公告)号：US20160372828A1

公开(公告)日：2016-12-22

申请号：US14741870

申请日：2015-06-17

Applicant: Google Inc.

Inventor： Arnd Geis ,  Arnold R. Feldman

IPC: H01Q3/26 ,  H01Q3/34

CPC classification number: H04B17/30 ,  H01Q3/267 ,  H01Q3/34 ,  H03G1/0017 ,  H03G3/00 ,  H03G3/20 ,  H03G3/301 ,  H03K5/1532 ,  H04B17/14

Abstract: A phased array antenna system includes an array of antennas having first antenna and second antennas disposed equidistantly from a third antenna. The first antenna is associated with a first gain and a first phase and the second antenna is associated with a second gain and a second phase. The first antenna receives a first reference signal corresponding to a calibration reference signal transmitted by the third antenna, and the second antenna receives a second reference signal corresponding to the calibration reference signal transmitted by the third antenna. The second receiver module is configured to adjust the second gain and the second phase associated with the second antenna to match the first gain and the first phase associated with the first antenna by comparing the first reference signal received by the first antenna with the second reference signal received by the second antenna.

Abstract translation: 相控阵天线系统包括具有从第三天线等距离设置的第一天线和第二天线的天线阵列。 第一天线与第一增益和第一相相关联，第二天线与第二增益和第二相关联。 第一天线接收对应于由第三天线发送的校准参考信号的第一参考信号，并且第二天线接收对应于由第三天线发送的校准参考信号的第二参考信号。 第二接收器模块被配置为通过将由第一天线接收的第一参考信号与第二参考信号进行比较来调整与第二天线相关联的第二增益和第二相位以匹配与第一天线相关联的第一增益和第一相位 由第二天线接收。

公开(公告)号：US08841971B1

公开(公告)日：2014-09-23

申请号：US13717166

申请日：2012-12-17

Applicant: Google Inc.

Inventor： Arnd Geis ,  Benjamin Joseph Mossawir

IPC: H02H7/20

CPC classification number: H02H9/025 ,  H03F1/523 ,  H03F3/45183

Abstract: Systems and method that provide short circuit protection for a power amplifier are described. The system can include, for example, a sense network that receives an output current from the power amplifier that is to be protected. The sense network can include, for example, a first resistor and a second resistor in series. The sense amplifier has a first input and a second input in which the first input is coupled to a first end of the first resistor and in which second input is coupled to a second end of the first resistor. The sense amplifier amplifies a voltage across the first resistor of the sense network in which the voltage is based on the output current from the power amplifier. Based on the amplified voltage of the sense amplifier, the feedback network reduces the output current from the power amplifier to protect the power amplifier from damage due to a short circuit condition.

Abstract translation: 描述了为功率放大器提供短路保护的系统和方法。 该系统可以包括例如从要被保护的功率放大器接收输出电流的感测网络。 感测网络可以包括例如串联的第一电阻器和第二电阻器。 读出放大器具有第一输入和第二输入，其中第一输入耦合到第一电阻的第一端，其中第二输入耦合到第一电阻的第二端。 感测放大器放大感测网络的第一电阻上的电压，其中电压基于来自功率放大器的输出电流。 基于读出放大器的放大电压，反馈网络减小了功率放大器的输出电流，以保护功率放大器免受由于短路情况的损害。

公开(公告)号：US09871577B2

公开(公告)日：2018-01-16

申请号：US14954235

申请日：2015-11-30

Applicant: Google Inc.

Inventor： Dedi David Haziza ,  Arnd Geis

IPC: H04B1/44 ,  H04B7/185 ,  H04B1/69 ,  H04W72/08 ,  H04W64/00

CPC classification number: H04B7/18513 ,  H04B1/69 ,  H04W64/003 ,  H04W72/085

Abstract: A method for modifying a communication signal for transmission from a source to a destination includes identifying a target platform for communicating with a communication device and establishing a communication connection between the target platform and the communication device. The method includes identifying an available communication channel for communicating data between the target platform and the communication device, and receiving control inputs from one or more sensors. The method also includes determining a pseudo random noise spreading code based on the received control inputs, and modifying a communication signal by multiplying the communication signal with the pseudo random noise spreading code. Additionally, the method includes causing transmission of the modified communication signal from the communication device to the target platform through the available communication channel, the modified communication signal being transmitted below a thermal noise of the available communication channel.

公开(公告)号：US20170155443A1

公开(公告)日：2017-06-01

申请号：US14954235

申请日：2015-11-30

Applicant: Google Inc.

Inventor： Dedi David Haziza ,  Arnd Geis

IPC: H04B7/185 ,  H04W72/08 ,  H04W64/00 ,  H04B1/69

CPC classification number: H04B7/18513 ,  H04B1/69 ,  H04W64/003 ,  H04W72/085

Abstract: A method for modifying a communication signal for transmission from a source to a destination includes identifying a target platform for communicating with a communication device and establishing a communication connection between the target platform and the communication device. The method includes identifying an available communication channel for communicating data between the target platform and the communication device, and receiving control inputs from one or more sensors. The method also includes determining a pseudo random noise spreading code based on the received control inputs, and modifying a communication signal by multiplying the communication signal with the pseudo random noise spreading code. Additionally, the method includes causing transmission of the modified communication signal from the communication device to the target platform through the available communication channel, the modified communication signal being transmitted below a thermal noise of the available communication channel.

公开(公告)号：US08823457B1

公开(公告)日：2014-09-02

申请号：US13717112

申请日：2012-12-17

Applicant: Google Inc.

Inventor： Benjamin Joseph Mossawir ,  Arnd Geis

IPC: H03F3/04

CPC classification number: H03F3/45183 ,  H03F1/523

Abstract: Systems and methods for protecting circuits from short-circuit events are described. The system may include, for example, first circuitry that receives an output signal from a power amplifier to be protected from a short-circuit event. The first circuitry mirrors an output stage of the power amplifier and provides a mirrored current that mirrors an output stage current of the power amplifier. Second circuitry is operatively coupled to the first circuitry and to the power amplifier. The second circuitry includes, for example, a comparator circuit that compares the mirrored current to a reference current. A first transistor of the comparator circuit is in a mirror configuration with respect to a second transistor of the power amplifier. The second transistor sinks or sources current into the power amplifier to protect the power amplifier from the short-circuit event.

Abstract translation: 描述了用于保护电路免于短路事件的系统和方法。 该系统可以包括例如接收来自功率放大器以防止短路事件的输出信号的第一电路。 第一电路反映功率放大器的输出级，并提供镜像功率放大器的输出级电流的镜像电流。 第二电路可操作地耦合到第一电路和功率放大器。 第二电路包括例如将镜像电流与参考电流进行比较的比较器电路。 比较器电路的第一晶体管相对于功率放大器的第二晶体管呈反射镜配置。 第二个晶体管将电流吸收或输入到功率放大器中，以保护功率放大器免受短路事件的影响。