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1. 发明授权

US08369534B2 Mode switching noise cancellation for microphone-speaker combinations used in two way audio communications 有权
标题翻译：用于双向音频通信的麦克风 - 扬声器组合的模式切换噪声消除
公开(公告)号：US08369534B2
公开(公告)日：2013-02-05
申请号：US13433064
申请日：2012-03-28
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： H04B3/00
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。

2. 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。

3. 发明申请

US20120183159A1 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：US20120183159A1
公开(公告)日：2012-07-19
申请号：US13433064
申请日：2012-03-28
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： H03F99/00
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。

4. 发明授权

US08150058B2 Mode switching noise cancellation for microphone-speaker combinations used in two way audio communications 有权
标题翻译：用于双向音频通信的麦克风 - 扬声器组合的模式切换噪声消除
公开(公告)号：US08150058B2
公开(公告)日：2012-04-03
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： H04B3/00
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。

5. 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。

6. 发明申请

US20090180659A1 ELECTRONIC DEVICE ACCESSORY WITH ULTRASONIC TONE GENERATOR 有权
标题翻译：带超音波发生器的电子设备配件
公开(公告)号：US20090180659A1
公开(公告)日：2009-07-16
申请号：US12203879
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： H04R25/00
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。

7. 发明申请

US20090179768A1 ELECTRONIC DEVICE ACCESSORY 有权
标题翻译：电子设备附件
公开(公告)号：US20090179768A1
公开(公告)日：2009-07-16
申请号：US12203876
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： G08C19/12
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。

8. 发明授权

US08976976B2 Accessory adapter with user input interface 有权
标题翻译：带用户输入接口的附件适配器
公开(公告)号：US08976976B2
公开(公告)日：2015-03-10
申请号：US12203880
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： H04R1/10 , H04M1/725 , H04M1/60 , H04M1/05
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。

9. 发明授权

US07627128B2 Methods of calibrating tone-based communications systems 有权
标题翻译：校准基于音调的通信系统的方法
公开(公告)号：US07627128B2
公开(公告)日：2009-12-01
申请号：US12203873
申请日：2008-09-03
申请人： Wendell B. Sander , Jeffrey Terlizzi , Douglas M. Farrar
发明人： Wendell B. Sander , Jeffrey Terlizzi , Douglas M. Farrar
IPC分类号： H04R1/10 , H04L17/02
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。

10. 发明授权

US07408403B2 Circuits and methods for amplifying signals 有权
标题翻译：用于放大信号的电路和方法
公开(公告)号：US07408403B2
公开(公告)日：2008-08-05
申请号：US11450026
申请日：2006-06-09
申请人： Douglas M. Farrar , Wendell B. Sander
发明人： Douglas M. Farrar , Wendell B. Sander
IPC分类号： H03F3/38
CPC分类号： H03F3/217 , H03F1/0211 , H03F1/30 , H03F2200/351
摘要： The present invention discloses a bus pumping compensation for a pulse modulation circuit such as class D modulators. The compensation according to the present invention provides a compensation current controlled by the output voltage, with the compensation characteristics matching the reverse current for improving circuit efficiency. Embodiments of the present invention also disclose a designable compensation circuit, comprising a linear compensation current, offering a good trade-off between circuit efficiency and ease of design. The present invention compensation circuit is preferably employed in a class D amplifier with substantial reverse current, and most preferably added into a LDO power supply in a class D amplifier circuit to prevent reverse current problem. The disclosed class D amplifier circuit is preferably used in an audio media player.
摘要翻译：本发明公开了一种脉冲调制电路如D类调制器的总线泵浦补偿。根据本发明的补偿提供了由输出电压控制的补偿电流，其补偿特性与反向电流匹配以提高电路效率。本发明的实施例还公开了一种可设计的补偿电路，其包括线性补偿电流，在电路效率和易于设计之间提供良好的权衡。本发明的补偿电路优选地用于具有大的反向电流的D类放大器中，最优选地被添加到D类放大器电路中的LDO电源中以防止反向电流问题。所公开的D类放大器电路优选地用在音频媒体播放器中。

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