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公开(公告)号：US20130073295A1
公开(公告)日：2013-03-21
申请号：US13238462
申请日：2011-09-21
Applicant: Timothy M. Johnson
Inventor： Timothy M. Johnson
IPC: G10L19/00
CPC classification number: G06F3/162 , H04M1/6025 , H04R3/12 , H04R2499/11 , H04R2499/15
Abstract: A dual channel audio coder decoder (codec) chip that has two output pins, which can be used to drive a pair of speakers in stereo mode, or a vibrator and a single speaker in mono mode. Each channel has its own DAC and audio power amplifier to receive an audio signal for driving a speaker. Each channel also has a variable signal generator to generate a vibrator signal for driving a vibrator. The DAC and variable signal generator outputs of each channel are input into a respective multiplexer. The multiplexer and the vibrator frequency are configured via an external digital communication interface. Other embodiments are also described.
Abstract translation: 具有两个输出引脚的双通道音频编码器解码器（编解码器）芯片，可用于以立体声模式驱动一对扬声器，或单声道模式下的振动器和单个扬声器。 每个通道都有自己的DAC和音频功率放大器来接收用于驱动扬声器的音频信号。 每个通道还具有可变信号发生器以产生用于驱动振动器的振动器信号。 每个通道的DAC和可变信号发生器输出被输入到相应的多路复用器中。 多路复用器和振荡器频率通过外部数字通信接口配置。 还描述了其它实施例。
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32.发明申请公开(公告)号：US20130070930A1
公开(公告)日：2013-03-21
申请号：US13236254
申请日：2011-09-19
Applicant: Timothy M. Johnson
Inventor： Timothy M. Johnson
CPC classification number: H04R3/007 , G06F11/00 , H04R3/04 , H04R3/12 , H04R29/00 , H04R2201/107 , H04R2420/01 , H04R2420/03 , H04R2420/05 , H04R2420/09 , H04R2430/01 , H04R2499/11
Abstract: An audio system has a connector with a signal pin that interfaces the audio system with an external device. An audio integrated circuit has a digital to analog converter (DAC) and an audio power amplifier having an input coupled to an output of the DAC and an output coupled to an output pin of the audio integrated circuit. Data storage contains stored instructions that program a processor to select an audio output mode of operation namely line-out mode or headphone mode. A configurable output conditioning circuit is coupled between the output pin of the audio integrated circuit and the signal pin of the connector. The conditioning circuit changes the output impedance that is presented at the signal pin, under control of the programmed processor when selecting the audio output mode of operation. Other embodiments are also described and claimed.
Abstract translation: 音频系统具有与音频系统与外部设备接口的信号引脚连接器。 音频集成电路具有数模转换器（DAC）和音频功率放大器，其具有耦合到DAC的输出的输入和耦合到音频集成电路的输出引脚的输出。 数据存储包含存储的指令，用于对处理器进行编程，以选择音频输出操作模式，即线路输出模式或耳机模式。 可配置的输出调理电路耦合在音频集成电路的输出引脚和连接器的信号引脚之间。 当选择音频输出运行模式时，调节电路会在编程处理器的控制下改变信号引脚上呈现的输出阻抗。 还描述和要求保护其他实施例。
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公开(公告)号：US08350522B2
公开(公告)日：2013-01-08
申请号：US12721223
申请日：2010-03-10
Applicant: Timothy M. Johnson
Inventor： Timothy M. Johnson
CPC classification number: H02J7/0052 , G06F1/266 , G06F1/305 , H02J7/00 , H02J7/0068 , H02J7/0073 , H02J7/041 , H02J7/045 , H02J2007/0062
Abstract: A portable electronic device has a connector with a first pin and a second pin, and a battery charging circuit having an input coupled to receive current through the second pin to charge a battery of the device. The portable device also has a controller to determine whether the connector is coupled to an external power source (EPS) having a power converter circuit that can provide the current. The controller on that basis drives the first pin to stimulate the power converter circuit to raise voltage on the second pin. Other embodiments are also described and claimed.
Abstract translation: 便携式电子设备具有连接器，其具有第一引脚和第二引脚，以及电池充电电路，其具有耦合以输入通过第二引脚的电流的输入，以对器件的电池充电。 便携式设备还具有控制器，用于确定连接器是否耦合到具有能够提供电流的功率转换器电路的外部电源（EPS）。 在此基础上的控制器驱动第一个引脚来激励电源转换器电路，以提高第二个引脚上的电压。 还描述和要求保护其他实施例。
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Patent Agency Ranking
公开(公告)号：US20120275101A1
公开(公告)日：2012-11-01
申请号：US13544840
申请日：2012-07-09
Applicant: Timothy M. Johnson , Scott Mullins , David John Tupman
Inventor： Timothy M. Johnson , Scott Mullins , David John Tupman
CPC classification number: G01R31/3624
Abstract: A gas gauge circuit has a power supply pin, a power return pin, power-on reset capability, and a communications signal pin. A reset control circuit is coupled between the power supply pin and the communications signal pin, or between the power return pin and the communications signal pin. The reset control circuit removes power to the gas gauge circuit in accordance with a control signal asserted on the communications signal pin. Other embodiments are also described and claimed.
Abstract translation: 气量计电路具有电源引脚，电源返回引脚，上电复位功能和通信信号引脚。 复位控制电路耦合在电源引脚和通信信号引脚之间，或者在电源返回引脚和通信信号引脚之间。 复位控制电路根据在通信信号引脚上断言的控制信号去除气量计电路的电力。 还描述和要求保护其他实施例。
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公开(公告)号：US08278948B2
公开(公告)日：2012-10-02
申请号：US12721211
申请日：2010-03-10
Applicant: Timothy M. Johnson
Inventor： Timothy M. Johnson
CPC classification number: G01R1/10 , G06F21/86 , G08B13/128 , G08B13/1418 , G08B13/1445 , H05K1/0215 , H05K1/0268 , H05K1/0275 , H05K1/0293 , H05K5/0208 , H05K7/1417 , H05K2201/10151 , H05K2201/10409
Abstract: An electronic device has a chassis, and a printed wiring board (PWB) having a hole. A fastener is installed in the hole thereby securing the PWB to the chassis. A pair of conductive traces is formed in the PWB. A cap, being an amount of conductive glue, covers a part of the fastener and fills an electrically insulating gap between the two traces, to thereby form a conductive path that connects the two traces. A sensing circuit is coupled to the traces, to detect a change in impedance of the path and signal a tamper event alert. Other embodiments are also described and claimed.
Abstract translation: 电子设备具有底盘和具有孔的印刷电路板（PWB）。 紧固件安装在孔中，从而将PWB固定到底盘。 在PWB中形成一对导电迹线。 作为导电胶的量的盖子覆盖紧固件的一部分并且填充两个迹线之间的电绝缘间隙，从而形成连接两个迹线的导电路径。 感测电路耦合到迹线，以检测路径的阻抗变化并发出篡改事件警报信号。 还描述和要求保护其他实施例。
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公开(公告)号：US08232771B2
公开(公告)日：2012-07-31
申请号：US12330156
申请日：2008-12-08
Applicant: Timothy M. Johnson , Scott Mullins , David John Tupman
Inventor： Timothy M. Johnson , Scott Mullins , David John Tupman
IPC: H02J7/00
CPC classification number: G01R31/3624
Abstract: A gas gauge circuit has a power supply pin, a power return pin, power-on reset capability, and a communications signal pin. A reset control circuit is coupled between the power supply pin and the communications signal pin, or between the power return pin and the communications signal pin. The reset control circuit removes power to the gas gauge circuit in accordance with a control signal asserted on the communications signal pin. Other embodiments are also described and claimed.
Abstract translation: 气量计电路具有电源引脚，电源返回引脚，上电复位功能和通信信号引脚。 复位控制电路耦合在电源引脚和通信信号引脚之间，或者在电源返回引脚和通信信号引脚之间。 复位控制电路根据在通信信号引脚上断言的控制信号去除气量计电路的电力。 还描述和要求保护其他实施例。
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37.发明申请公开(公告)号：US20110033065A1
公开(公告)日：2011-02-10
申请号：US12535505
申请日：2009-08-04
Applicant: Timothy M. Johnson
Inventor： Timothy M. Johnson
IPC: H03G3/00
Abstract: An audio host device has a headset electrical interface in which a reference contact is shared by a microphone and a speaker. A variable or programmable gain amplifier, PGA, has a signal input coupled to a sense point for the reference contact. A first difference amplifier has its inputs coupled to a microphone contact and the PGA through a first gain stage; a second difference amplifier has its inputs coupled to the microphone contact and to the output of the PGA, through a second gain stage having a different gain than the first gain stage; a third difference amplifier has its inputs coupled to the microphone contact and the output of the PGA through a third gain stage having a gain in between that of the first and second gain stages. A controller monitors outputs of the first and second difference amplifiers and changes a gain setting of the PGA. Other embodiments are also described and claimed.
Abstract translation: 音频主机设备具有耳机电接口，其中参考接点由麦克风和扬声器共享。 可变或可编程增益放大器PGA具有耦合到参考触点的感测点的信号输入。 第一差分放大器的输入通过第一增益级耦合到麦克风接点和PGA; 第二差分放大器通过具有与第一增益级不同的增益的第二增益级将其输入耦合到麦克风接点和PGA的输出端; 第三差分放大器的输入通过第三增益级与麦克风接点耦合，并且PGA的输出具有在第一和第二增益级之间的增益。 控制器监视第一和第二差分放大器的输出并改变PGA的增益设置。 还描述和要求保护其他实施例。
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38.发明申请NOISE CANCELLATION FOR MICROPHONE-SPEAKER COMBINATIONS USING COMBINED SPEAKER AMPLIFIER AND REFERENCE SENSING 有权使用组合扬声器放大器和参考感应的麦克风扬声器组合的噪音消除公开(公告)号：US20110033056A1
公开(公告)日：2011-02-10
申请号：US12535516
申请日：2009-08-04
Applicant: Timothy M. Johnson , Lawrence F. Heyl
Inventor： Timothy M. Johnson , Lawrence F. Heyl
CPC classification number: H03F3/68 , H03F1/26 , H03F3/45475 , H03F2200/03 , H03F2200/372 , H04R3/007
Abstract: An audio host device has a connector 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 first cold input, a second cold input, and hot input. The first cold input is coupled to an output of the speaker amplifier, while the second cold input is coupled a sense point for the reference contact. The hot input is coupled to the microphone contact. Other embodiments are also described and claimed.
Abstract translation: 音频主机设备具有具有扬声器接触件，麦克风接点和参考接点的连接器。 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。 提供了具有第一冷输入，第二冷输入和热输入的差分放大器。 第一冷输入耦合到扬声器放大器的输出，而第二冷输入耦合到用于参考触点的感测点。 热输入耦合到麦克风接点。 还描述和要求保护其他实施例。
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