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1. 发明授权

US4151540A High beta, high frequency transistor structure 失效
标题翻译：高β，高频晶体管结构
公开(公告)号：US4151540A
公开(公告)日：1979-04-24
申请号：US858572
申请日：1977-12-08
申请人： Wendell B. Sander , William H. Shepherd
发明人： Wendell B. Sander , William H. Shepherd
IPC分类号： H01L21/265 , H01L29/06 , H01L29/10 , H01L29/72
CPC分类号： H01L29/0615 , H01L21/26513 , H01L29/1004
摘要： High beta, high frequency transistors require very narrow and high resistance base structures, thereby placing a low limit of collector-emitter voltages that may be used without encountering "punch-through" breakdown. This invention permits the use of normal collector-emitter voltages without danger of punch-through problems by injecting into the high resistance base material an impurity grid that serves both as an electrostatic shield to increase the voltage breakdown level, and as a means of reducing the apparent lateral base resistance, thereby further increasing the high frequency capability of the device without degrading the high beta characteristics.
摘要翻译：高β晶体管需要非常窄且高电阻的基极结构，从而可以在不会发生“穿通”故障的情况下使用集电极 - 发射极电压的下限。本发明允许使用正常的集电极 - 发射极电压，而不会出现穿通问题的危险，通过将高电阻基底材料注入用作静电屏蔽以增加电压击穿电平的杂质栅格，并且作为减少表观侧基电阻，从而进一步增加器件的高频能力而不降低高β特性。

2. 发明授权

US08600080B2 Methods for communicating with electronic device accessories 有权
标题翻译：与电子设备配件通讯的方法
公开(公告)号：US08600080B2
公开(公告)日：2013-12-03
申请号：US12203883
申请日：2008-09-03
申请人： Wendell B. Sander , Jeffrey Terlizzi , Douglas M. Farrar , Timothy Johnson , Brian Sander , Brian J. Conner , Jesse L. Dorogusker
发明人： Wendell B. Sander , Jeffrey Terlizzi , Douglas M. Farrar , Timothy Johnson , Brian Sander , Brian J. Conner , Jesse L. Dorogusker
IPC分类号： H04R3/00
CPC分类号： H04M1/6058 , H04M1/05 , H04M1/72527 , H04M1/72558 , H04R1/1041 , H04R3/00 , H04R2499/11
摘要： Electronic devices and accessories such as headsets for electronic devices are provided. A microphone may be included in an accessory to capture sound for an associated electronic device. Buttons and other user interfaces may be included in the accessories. An accessory may have an audio plug that connects to a mating audio jack in an electronic device, thereby establishing a wired communications link between the accessory and the electronic device. The electronic device may include power supply circuitry for applying bias voltages to the accessory. The bias voltages may bias a microphone and may adjust settings in the accessory such as settings related to operating modes. User input information may be conveyed between the accessory and the electronic device using ultrasonic tone transmission. The electronic device may also gather input from the accessory using a voltage detector coupled to lines in the communications path.
摘要翻译：提供电子设备和附件，例如电子设备的耳机。附件中可以包括麦克风以捕获相关联的电子设备的声音。按钮和其他用户界面可能包含在附件中。附件可以具有连接到电子设备中的匹配音频插孔的音频插头，从而在附件和电子设备之间建立有线通信链路。电子设备可以包括用于向附件施加偏置电压的电源电路。偏置电压可能偏置麦克风，并可能会调整附件中的设置，例如与操作模式相关的设置。用户输入信息可以使用超声波传输在配件和电子设备之间传送。电子设备还可以使用耦合到通信路径中的线路的电压检测器从附件收集输入。

3. 发明授权

US08401200B2 Electronic device and headset with speaker seal evaluation capabilities 有权
公开(公告)号：US08401200B2
公开(公告)日：2013-03-19
申请号：US12622371
申请日：2009-11-19
申请人： Victor Tiscareno , Jeffrey J. Terlizzi , Wendell B. Sander , Christopher Todd Beauchamp
发明人： Victor Tiscareno , Jeffrey J. Terlizzi , Wendell B. Sander , Christopher Todd Beauchamp
IPC分类号： H04R29/00 , H04R1/10 , H04B15/00
CPC分类号： H04R29/00 , H04R1/1016 , H04R3/12 , H04R5/033
摘要： Electronic devices and accessories for electronic devices such as headsets are provided. The electronic devices may produce audio output. The headsets may include earbuds with speakers that play the audio output for a user while the earbuds are located in the user's ears. Circuitry in an electronic device and a headset may be used in evaluating how well the earbuds are sealed to the user's ears. In response to seal quality measurements, informative messages can be generated for the user, overall earbud volume may be increased, balance adjustments may be made to correct for mismatched balance between left and right earbuds, equalization settings may be adjusted, and noise cancellation circuitry settings can be changed. Electrical impedance measurements and acoustic measurements can be used in evaluating seal quality.

4. 发明授权

US08223909B2 Digital sampling apparatuses and methods 有权
标题翻译：数字采样设备和方法
公开(公告)号：US08223909B2
公开(公告)日：2012-07-17
申请号：US12132926
申请日：2008-06-04
申请人： Wendell B. Sander
发明人： Wendell B. Sander
IPC分类号： H04L7/00
CPC分类号： H03L7/0995 , G01R23/15 , H03L7/07 , H03L7/091 , H03L7/18
摘要： Methods and apparatus for sampling and determining the frequency of periodic digital signals. An exemplary digital sampling apparatus includes a polyphase sampling apparatus configured to sample a periodic digital signal according to a polyphase clock system having multiple phases. The multiple phases provided by the polyphase clock system are successively distributed in time so that consecutive phases have a periodic phase difference. By using a polyphase clock system, a sampling rate that is equivalent to a sampling clock having a period equal to the phase difference in time between phases of the polyphase clocks is realized. Accordingly, the effective sampling rate of a given periodic digital signal can be increased, or the sampling of higher frequency periodic digitals signals can be achieved, while the underlying logic circuitry used to capture the samples is clocked at a much lower rate.
摘要翻译：用于采样和确定周期性数字信号频率的方法和装置。示例性数字采样装置包括：多相采样装置，被配置为根据具有多个相位的多相时钟系统对周期数字信号进行采样。由多相时钟系统提供的多个相位在时间上相继分布，使得连续的相位具有周期性的相位差。通过使用多相时钟系统，实现了等效于具有等于多相时钟的相位之间的时间相位差的周期的采样时钟的采样率。因此，可以增加给定的周期性数字信号的有效采样率，或者可以实现更高频率周期数字信号的采样，而用于捕获采样的基础逻辑电路以低得多的速率被计时。

5. 发明授权

US08130790B2 Digital communications system with variable-bandwidth traffic channels 有权
标题翻译：具有可变带宽业务信道的数字通信系统
公开(公告)号：US08130790B2
公开(公告)日：2012-03-06
申请号：US12887468
申请日：2010-09-21
申请人： Wendell B. Sander , Barry Corlett , David John Tupman , Brian Sander , Jeffrey J. Terlizzi , Andrew Bright , Anup Sharma
发明人： Wendell B. Sander , Barry Corlett , David John Tupman , Brian Sander , Jeffrey J. Terlizzi , Andrew Bright , Anup Sharma
IPC分类号： H04J3/16
CPC分类号： H04J3/1682 , H04M1/6058
摘要： Electronic devices and equipment may communicate over a wired communications path. The wired communications path may include one or more wires and may be associated with a headphone cable. Data may be conveyed in the form of a digital data stream containing multiple traffic channels. The digital data stream may include superframes, each of which has multiple frames of data. The frames of data may each contain a number of data slots. Some of the slots in a superframe may be used exclusively by a particular one of the traffic channels. Boundary slots may be shared between traffic channels. Data interface circuitry may implement a data dispersion algorithm that determines the pattern in which data from each traffic channel is distributed within each boundary slot. Transmitting data interface circuitry may merge traffic channels into a single data stream. Receiving data interface circuitry may reconstruct the traffic channels.
摘要翻译：电子设备和设备可以通过有线通信路径进行通信。有线通信路径可以包括一个或多个电线并且可以与耳机线缆相关联。数据可以以包含多个业务信道的数字数据流的形式传送。数字数据流可以包括超帧，每个超帧具有多个数据帧。数据帧可以各自包含多个数据时隙。超帧中的一些时隙可以由特定的业务信道专门使用。边界槽可以在通道之间共享。数据接口电路可以实现数据分散算法，其确定在每个边界时隙内分布来自每个业务信道的数据的模式。传输数据接口电路可以将业务信道合并成单个数据流。接收数据接口电路可以重建业务信道。

6. 发明授权

US08004113B2 Methods and apparatuses for operating devices with solar power 有权
标题翻译：用于操作具有太阳能发电装置的方法和装置
公开(公告)号：US08004113B2
公开(公告)日：2011-08-23
申请号：US11544103
申请日：2006-10-06
申请人： Wendell B. Sander , Daniel A. Warren , Aaron Leiba
发明人： Wendell B. Sander , Daniel A. Warren , Aaron Leiba
IPC分类号： H02J1/12
CPC分类号： H02J7/35 , H02J3/385 , Y10T307/516
摘要： Solar power tracking techniques are described herein. In one aspect of the invention, a solar power tracking apparatus includes, but is not limited to, a voltage converter and a controller coupled to the voltage converter. The voltage converter includes an input capable of being coupled to a solar power source and an output capable of being coupled to an electronic load, such as, for example, a portable electronic device. The voltage converter is configured to monitor or detect an amount of power drawn by the electronic load at the output of the voltage converter. In response to the monitored power drawn, the controller is configured to control the voltage converter to reduce amount of power to be drawn subsequently if the monitored amount of power exceeds a predetermined threshold. As a result, the output voltage from the solar power source is maintained within a predetermined range. Other methods and apparatuses are also described.
摘要翻译：本文描述了太阳能跟踪技术。在本发明的一个方面，一种太阳能发电跟踪装置包括但不限于与电压转换器耦合的电压转换器和控制器。电压转换器包括能够耦合到太阳能电源的输入端和能够耦合到例如便携式电子设备的电子负载的输出端。电压转换器被配置为监视或检测在电压转换器的输出处由电子负载拉出的功率量。响应于所监视的电力消耗，控制器被配置为如果监视的功率量超过预定阈值，则控制电压转换器以减少随后抽取的功率量。结果，来自太阳能电源的输出电压保持在预定范围内。还描述了其它方法和装置。

7. 发明申请

US20110194569A1 DIGITAL COMMUNICATIONS SYSTEM WITH VARIABLE-BANDWIDTH TRAFFIC CHANNELS 有权
标题翻译：具有可变带宽交通信道的数字通信系统
公开(公告)号：US20110194569A1
公开(公告)日：2011-08-11
申请号：US12887468
申请日：2010-09-21
申请人： Wendell B. Sander , Barry Corlett , David John Tupman , Brian Sander , Jeffrey J. Terlizzi , Andrew Bright , Anup Sharma
发明人： Wendell B. Sander , Barry Corlett , David John Tupman , Brian Sander , Jeffrey J. Terlizzi , Andrew Bright , Anup Sharma
IPC分类号： H04L29/02 , H04H20/88
CPC分类号： H04J3/1682 , H04M1/6058
摘要： Electronic devices and equipment may communicate over a wired communications path. The wired communications path may include one or more wires and may be associated with a headphone cable. Data may be conveyed in the form of a digital data stream containing multiple traffic channels. The digital data stream may include superframes, each of which has multiple frames of data. The frames of data may each contain a number of data slots. Some of the slots in a superframe may be used exclusively by a particular one of the traffic channels. Boundary slots may be shared between traffic channels. Data interface circuitry may implement a data dispersion algorithm that determines the pattern in which data from each traffic channel is distributed within each boundary slot. Transmitting data interface circuitry may merge traffic channels into a single data stream. Receiving data interface circuitry may reconstruct the traffic channels.
摘要翻译：电子设备和设备可以通过有线通信路径进行通信。有线通信路径可以包括一个或多个电线并且可以与耳机线缆相关联。数据可以以包含多个业务信道的数字数据流的形式传送。数字数据流可以包括超帧，每个超帧具有多个数据帧。数据帧可以分别包含多个数据时隙。超帧中的一些时隙可以由特定的业务信道专门使用。边界槽可以在通道之间共享。数据接口电路可以实现数据分散算法，其确定在每个边界时隙内分布来自每个业务信道的数据的模式。传输数据接口电路可以将业务信道合并成单个数据流。接收数据接口电路可以重建业务信道。

8. 发明申请

US20110033060A1 MODE SWITCHING NOISE CANCELLATION FOR MICROPHONE-SPEAKER COMBINATIONS USED IN TWO WAY AUDIO COMMUNICATIONS 有权
标题翻译：两路音频通信中使用的麦克风扬声器组合的模式切换噪声消除
公开(公告)号：US20110033060A1
公开(公告)日：2011-02-10
申请号：US12535570
申请日：2009-08-04
申请人： Timothy M. Johnson , Lawrence F. Heyl , Wendell B. Sander , Douglas M. Farrar
发明人： Timothy M. Johnson , Lawrence F. Heyl , Wendell B. Sander , Douglas M. Farrar
IPC分类号： G10K11/16
CPC分类号： H04M1/6008
摘要： An audio host device has an electrical interface having a speaker contact, a microphone contact, and a reference contact. The reference contact is shared by a microphone and a speaker. The reference contact is also directly coupled to a power return plane of the audio host device. A difference amplifier is provided, having a cold input and a hot input. The hot input is coupled to the microphone contact. A switched attenuator circuit is also provided that has first and second states. In the first state, the attenuator circuit couples a sense point of the reference contact to the cold input, while in the second state the cold input is isolated from the reference sense point. Other embodiments are also described and claimed.
摘要翻译：音频主机设备具有电接口，其具有扬声器触点，麦克风触点和参考触点。参考触点由麦克风和扬声器共享。参考触点也直接耦合到音频主机设备的功率返回平面。提供差分放大器，具有冷输入和热输入。热输入耦合到麦克风接点。还提供了具有第一和第二状态的开关衰减器电路。在第一状态下，衰减器电路将参考触点的感测点耦合到冷输入，而在第二状态下，冷输入与参考检测点隔离。还描述和要求保护其他实施例。

9. 发明授权

US07636386B2 Method of continuously calibrating the gain for a multi-path angle modulator 失效
标题翻译：连续校准多路径角度调制器增益的方法
公开(公告)号：US07636386B2
公开(公告)日：2009-12-22
申请号：US11280665
申请日：2005-11-15
申请人： Earl W. McCune, Jr. , Wendell B. Sander
发明人： Earl W. McCune, Jr. , Wendell B. Sander
IPC分类号： H04B1/38 , H04L5/16 , H04L27/10 , H04L27/18
CPC分类号： H03C3/0991 , H03C3/0941 , H03C3/095 , H03C3/0966 , H03C3/0975
摘要： A multiple path angle modulator includes a closed secondary loop added to a main control loop to automatically adjust a scaling factor related to high frequency gain. The main control loop is configured as a primary path to process the low frequency portion of the angle modulation signal, and the secondary loop is configured as an auxiliary path to process the high frequency portions of the angle modulation signal. The secondary loop senses calibration information and uses it to continuously calibrate the gain within the modulation loop in real time while the system performs its primary operation, thereby eliminating the need for a system shut down or calibration specific timing, such as a lapse time, to balance the modulation paths. Calibration is continuously performed as a background process. The angle modulator is applicable to all modulation type systems.
摘要翻译：多路径角度调制器包括添加到主控制回路中的闭合次级回路，以自动调整与高频增益相关的缩放因子。主控制回路被配置为处理角度调制信号的低频部分的主要路径，并且辅助回路被配置为辅助路径以处理角度调制信号的高频部分。次级回路感测校准信息，并使用它在系统执行其主要操作时实时地连续地校准调制环路内的增益，从而消除对系统关闭或校准特定定时（例如经过时间）的需要，平衡调制路径。作为后台进程连续执行校准。角度调制器适用于所有调制型系统。

10. 发明申请

US20090237157A1 POWER AMPLIFIER EDGE EVALUATION-ALTERNATIVE ENVELOPE MODULATOR 有权
标题翻译：功率放大器边缘评估 - 替代环境调节器
公开(公告)号：US20090237157A1
公开(公告)日：2009-09-24
申请号：US12394543
申请日：2009-02-27
申请人： Wendell B. Sander , Earl W. McCune, JR.
发明人： Wendell B. Sander , Earl W. McCune, JR.
IPC分类号： H03G3/20
CPC分类号： H03G3/3042 , H03C5/00
摘要： A modulator includes a power driver, a power amplifier, and a heterojunction bipolar transistor (HBT) type device. The power driver is for receiving an amplitude modulation signal and for providing a control signal. The power amplifier is for receiving a phase modulation signal, a bias voltage, and the control signal. The power amplifier is for providing a radio frequency signal as an output based on the phase modulation signal, the bias voltage, and the control signal. The switching device is for coupling the power driver to the power amplifier such that the control signal is provided to the power amplifier in a timely manner.
摘要翻译：调制器包括功率驱动器，功率放大器和异质结双极晶体管（HBT）型器件。功率驱动器用于接收幅度调制信号并提供控制信号。功率放大器用于接收相位调制信号，偏置电压和控制信号。功率放大器用于基于相位调制信号，偏置电压和控制信号提供射频信号作为输出。开关装置用于将功率驱动器耦合到功率放大器，使得控制信号及时地提供给功率放大器。

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