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公开(公告)号：US20240031750A1
公开(公告)日：2024-01-25
申请号：US18479606
申请日：2023-10-02
Applicant: Sonos, Inc.
Inventor： Hilmar Lehnert , Aurelio Ramos
CPC classification number: H04R29/001 , G01K1/14 , G01K3/10 , H03G3/3005 , H04R3/007 , H03G2201/708
Abstract: To avoid damage from overheating, playback device operation can be modulated based on input from temperature sensors. An example method includes obtaining, via one or more temperature sensors carried by the playback device, temperature data. Based on the temperature data, a first temperature parameter is detected. In response to detecting the first temperature parameter, a gain of audio playback is decreased by a first amount. After decreasing the gain of audio playback by the first amount, a second temperature parameter is detected. In response to detecting the second temperature parameter, the gain of audio playback is decreased by a second amount different than the first amount.
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2.发明申请INTEGRATED POWER DETECTOR WITH TEMPERATURE COMPENSATION FOR FULLY-CLOSED LOOP CONTROL 有权集成功率检测器，具有完全闭环控制的温度补偿公开(公告)号：US20090302830A1
公开(公告)日：2009-12-10
申请号：US12133297
申请日：2008-06-04
Applicant: Bun Kobayashi , Liyang Zhang , Mau-Chung Frank Chang , Pei-Ming Daniel Chow
Inventor： Bun Kobayashi , Liyang Zhang , Mau-Chung Frank Chang , Pei-Ming Daniel Chow
IPC: G01R29/08
CPC classification number: G01R21/12 , H03G3/3042 , H03G2201/708
Abstract: An amplifier circuit comprises a detection power input circuit for receiving an RF signal, and a bias circuit that includes an output for generating a bias signal in response to a reference control voltage. The power detector further comprises a detection circuit for generating a power control voltage having a voltage characteristic that offsets temperature characteristics of the received RF signal. The amplifier circuit further comprises a power amplifier coupled to the bias circuit. The power amplifier includes a driver stage providing the RF signal. The detection circuit compensates temperature variation of the inputted detection voltage of the received RF signal.
Abstract translation: 放大器电路包括用于接收RF信号的检测功率输入电路和包括用于响应于参考控制电压产生偏置信号的输出的偏置电路。 功率检测器还包括用于产生具有抵消接收的RF信号的温度特性的电压特性的功率控制电压的检测电路。 放大器电路还包括耦合到偏置电路的功率放大器。 功率放大器包括提供RF信号的驱动级。 检测电路补偿接收到的RF信号的输入检测电压的温度变化。
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公开(公告)号：US20030040290A1
公开(公告)日：2003-02-27
申请号：US10169141
申请日：2002-08-19
Inventor： Karl Gosta Sahlman , Hans Eriksson
IPC: H03C001/62 , H04B017/00
CPC classification number: H03G3/001 , H03G3/3047 , H03G2201/708 , H04W52/50 , H04W52/52
Abstract: The present invention relates to radio transmission of bursts in for example a TDMA cellular radio system. The burst starts with a ramping up period, ends with a corresponding ramping down ramping down period and with the pay-load information therebetween. The ramp form is created in a ramp generator (13) which gives a multiplication value to multiply the digital information to be transmitted in multipliers (15, 16). The multiplied values are converted into analogue form and amplified before being transferred to the antenna (21). Output power and temperature of the transmitting equipment are measured (22, 23) and used to update the output power levels during the next burst.
Abstract translation: 本发明涉及例如TDMA蜂窝无线电系统中的脉冲串的无线电传输。 突发从加速期开始，以相应的斜坡下降周期结束，并且其间的付费信息。 在斜坡发生器（13）中创建斜坡形式，斜坡发生器（13）给出乘法值乘以要在乘法器（15,16）中发送的数字信息。 相乘的值被转换成模拟形式，并在被传送到天线（21）之前被放大。 测量发射设备的输出功率和温度（22,23），并用于在下一个脉冲串期间更新输出功率电平。
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公开(公告)号：US12074576B2
公开(公告)日：2024-08-27
申请号：US17706854
申请日：2022-03-29
Applicant: SKYWORKS SOLUTIONS, INC.
Inventor： Philip John Lehtola
CPC classification number: H03G3/3042 , H03F1/0211 , H03F1/302 , H03F3/245 , H04B1/04 , H01L23/66 , H01L2223/6644 , H03F1/56 , H03F2200/222 , H03F2200/451 , H03G2201/708
Abstract: A power amplifier can include an input stage that includes an amplifying transistor having an input node and an output node, such that a signal at the input node has a first power level and an amplified signal at the output node has a second power level. The power amplifier can further include a bias circuit configured to provide a bias signal to the amplifying transistor, and a feedback circuit that couples the output node of the amplifying transistor to the input node of the amplifying transistor. The feedback circuit can include a resistance and a capacitance arranged in series. The power amplifier can further include a gain compensation circuit implemented relative to the input stage such that the second power level is compensated for a variation in temperature associated with the power amplifier.
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公开(公告)号：US11792589B2
公开(公告)日：2023-10-17
申请号：US17938513
申请日：2022-10-06
Applicant: Sonos, Inc.
Inventor： Hilmar Lehnert , Aurelio Ramos
CPC classification number: H04R29/001 , G01K1/14 , G01K3/10 , H03G3/3005 , H04R3/007 , H03G2201/708
Abstract: To avoid damage from overheating, playback device operation can be modulated based on input from temperature sensors. An example method includes obtaining, via one or more temperature sensors carried by the playback device, temperature data. Based on the temperature data, a first temperature parameter is detected. In response to detecting the first temperature parameter, a gain of audio playback is decreased by a first amount. After decreasing the gain of audio playback by the first amount, a second temperature parameter is detected. In response to detecting the second temperature parameter, the gain of audio playback is decreased by a second amount different than the first amount.
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Patent Agency Ranking
6.发明申请INTEGRATED POWER DETECTOR WITH TEMPERATURE COMPENSATION FOR FULLY-CLOSED LOOP CONTROL 有权集成功率检测器，具有完全闭环控制的温度补偿公开(公告)号：US20110018624A1
公开(公告)日：2011-01-27
申请号：US12848937
申请日：2010-08-02
Applicant: Bun Kobayashi , Liyang Zhang , Mau-Chung Frank Chang , Pei-Ming Daniel Chow
Inventor： Bun Kobayashi , Liyang Zhang , Mau-Chung Frank Chang , Pei-Ming Daniel Chow
IPC: H03F3/14
CPC classification number: G01R21/12 , H03G3/3042 , H03G2201/708
Abstract: An amplifier circuit comprises a detection power input circuit for receiving an RF signal, and a bias circuit that includes an output for generating a bias signal in response to a reference control voltage. The power detector further comprises a detection circuit for generating a power control voltage having a voltage characteristic that offsets temperature characteristics of the received RF signal. The amplifier circuit further comprises a power amplifier coupled to the bias circuit. The power amplifier includes a driver stage providing the RF signal. The detection circuit compensates temperature variation of the inputted detection voltage of the received RF signal.
Abstract translation: 放大器电路包括用于接收RF信号的检测功率输入电路和包括用于响应于参考控制电压产生偏置信号的输出的偏置电路。 功率检测器还包括用于产生具有抵消接收的RF信号的温度特性的电压特性的功率控制电压的检测电路。 放大器电路还包括耦合到偏置电路的功率放大器。 功率放大器包括提供RF信号的驱动级。 检测电路补偿接收到的RF信号的输入检测电压的温度变化。
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公开(公告)号：US20070176681A1
公开(公告)日：2007-08-02
申请号：US10589076
申请日：2005-02-08
Applicant: Hidenori Matsumoto
Inventor： Hidenori Matsumoto
IPC: H03G3/00
CPC classification number: H03G1/0088 , H03G3/3042 , H03G2201/103 , H03G2201/506 , H03G2201/702 , H03G2201/708 , H04B2001/0416
Abstract: A transmission power control apparatus which reduces the number of steps required for adjustments of the transmission power control apparatus and performs transmission power control with high accuracy in a wide dynamic range. The apparatus has a first variable amplifying circuit (122) with the resolution of 1 dB and a second variable amplifying circuit (123) with the resolution of 0.1 dB, where a correction value calculating section (106) calculates a correction value to compensate for deterioration in the accuracy of transmission power caused by a change in environment due to frequency characteristics and temperature characteristics and another correction value to compensate for error in transmission power, a transmission power calculating section (107) calculates transmission power obtained by correcting with the correction value specified transmission power to output to a communicating party based on the received signal, and a first set value calculating section (108) and a second set value calculating section (109) calculate gain values to set on the first variable amplifying circuit (122) and second variable amplifying circuit (123) based on the corrected transmission power, respectively.
Abstract translation: 一种发送功率控制装置，其减少了调整发送功率控制装置所需的步骤数量，并且在宽动态范围内以高精度执行发送功率控制。 该装置具有分辨率为1dB的第一可变放大电路（122）和分辨率为0.1dB的第二可变放大电路（123），其中校正值计算部分（106）计算校正值以补偿劣化 在由于频率特性和温度特性引起的由环境变化引起的发送功率的精度以及用于补偿发送功率误差的另一校正值的情况下，发送功率计算部（107）计算通过指定的校正值进行校正而获得的发送功率 发送功率，基于接收信号输出到通信对方，第一设定值计算部（108）和第二设定值计算部（109）计算设定在第1可变放大电路（122）和第2可变放大电路 可变放大电路（123）基于校正的发射功率， y。
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公开(公告)号：US20180115287A1
公开(公告)日：2018-04-26
申请号：US15714120
申请日：2017-09-25
Applicant: Skyworks Solutions, Inc.
CPC classification number: H03F1/30 , H03F1/02 , H03F1/0266 , H03F3/195 , H03F3/213 , H03F3/245 , H03F2200/408 , H03F2200/447 , H03F2200/451 , H03F2200/468 , H03G3/20 , H03G3/3042 , H03G3/3047 , H03G2201/708
Abstract: A temperature compensation circuit comprises a temperature coefficient circuit that generates a temperature coefficient that is temperature dependent and a compensation circuit that generates a compensation signal based on an indication of temperature of an amplifier and the temperature coefficient, and based on the compensation signal, a gain of the amplifier is adjusted to improve amplifier linearity during data bursts.
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公开(公告)号：US07692482B1
公开(公告)日：2010-04-06
申请号：US11888187
申请日：2007-07-31
Applicant: Thart Fah Voo
Inventor： Thart Fah Voo
IPC: G05F3/02
CPC classification number: H03G1/0029 , H03G3/004 , H03G2201/708
Abstract: A programmable gain amplifier comprises a current source that generates a first current based on a first transfer function. A voltage amplifier receives an input voltage signal and generates an output voltage signal based on a gain A, wherein the gain A is based on a control current and a second transfer function. A compensation module generates the control current based on the first current and a mapping function, wherein the mapping function is based on the first transfer function and the second transfer function to reduce the effect of an independent variable on an overall transfer function that relates the first current to the gain A.
Abstract translation: 可编程增益放大器包括基于第一传递函数产生第一电流的电流源。 电压放大器接收输入电压信号并基于增益A产生输出电压信号，其中增益A基于控制电流和第二传递函数。 补偿模块基于第一电流和映射函数产生控制电流，其中映射函数基于第一传递函数和第二传递函数，以减少独立变量对总传递函数的影响，该总体传递函数涉及第一 目前获得A.
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公开(公告)号：US07683702B1
公开(公告)日：2010-03-23
申请号：US11821912
申请日：2007-06-26
Applicant: Thart Fah Voo
Inventor： Thart Fah Voo
IPC: G05F1/10
CPC classification number: H03G1/0029 , H03G3/004 , H03G2201/708
Abstract: A compensated control circuit includes a combination module that generates a control variable based on n signals and a process module that generates an output signal based on an input signal and the control variable wherein n is a positive integer.
Abstract translation: 补偿控制电路包括基于n个信号产生控制变量的组合模块和基于输入信号产生输出信号的处理模块和其中n是正整数的控制变量。
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