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公开(公告)号:US08829932B2
公开(公告)日:2014-09-09
申请号:US13188802
申请日:2011-07-22
申请人: John R. Turner , Nathan Charland
发明人: John R. Turner , Nathan Charland
IPC分类号: G01R31/3187 , G01R31/28 , G01R31/317
CPC分类号: G01R31/2844 , G01R31/2884 , G01R31/31701
摘要: This application provides apparatus and methods for initiating tests in an interface circuit without using inputs of the interface circuit dedicated to initiating the tests. In an example, a test mode interface circuit can include a voltage comparator configured compare a first voltage to a second voltage, a ripple counter configured to count pulses from a processor when the voltage comparator indicates that the first voltage is greater than the second voltage, and wherein the test mode interface circuit is configured to provide a test mode enable signal and an indication of the a desired test mode an interface circuit that includes the test mode interface circuit.
摘要翻译: 该应用提供用于在接口电路中启动测试而不使用专用于启动测试的接口电路的输入的装置和方法。 在一个示例中,测试模式接口电路可以包括将第一电压与第二电压进行比较的电压比较器,当电压比较器指示第一电压大于第二电压时,纹波计数器被配置为对来自处理器的脉冲进行计数, 并且其中所述测试模式接口电路被配置为提供测试模式使能信号和期望测试模式的指示,所述接口电路包括所述测试模式接口电路。
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公开(公告)号:US20120019309A1
公开(公告)日:2012-01-26
申请号:US13188778
申请日:2011-07-22
申请人: John R. Turner , Seth M. Prentice , Oscar Freitas , Wonsoo Moon
发明人: John R. Turner , Seth M. Prentice , Oscar Freitas , Wonsoo Moon
IPC分类号: G01R29/00
CPC分类号: H03K5/1254
摘要: This document discusses, among other things, an audio jack detection circuit configured to be coupled to an audio jack receptacle of an external device. The audio jack detection circuit configured to receive to receive audio jack receptacle information, to disable an oscillator when the audio jack receptacle information indicates that the audio jack receptacle is empty, and to enable the oscillator when the audio jack receptacle information indicates that the audio jack receptacle includes an audio jack.
摘要翻译: 本文件尤其讨论了被配置为耦合到外部设备的音频插座的音频插座检测电路。 音频插孔检测电路被配置为接收音频插座信息,当音频插孔信息指示音频插孔插座为空时禁用振荡器,并且当音频插座信息指示音频插孔 插座包括音频插孔。
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公开(公告)号:US08831234B2
公开(公告)日:2014-09-09
申请号:US13188778
申请日:2011-07-22
申请人: John R. Turner , Seth M. Prentice , Oscar Freitas , Wonsoo Moon
发明人: John R. Turner , Seth M. Prentice , Oscar Freitas , Wonsoo Moon
IPC分类号: H04R29/00 , H04B3/00 , H03K5/1254
CPC分类号: H03K5/1254
摘要: This document discusses, among other things, an audio jack detection circuit configured to be coupled to an audio jack receptacle of an external device. The audio jack detection circuit configured to receive to receive audio jack receptacle information, to disable an oscillator when the audio jack receptacle information indicates that the audio jack receptacle is empty, and to enable the oscillator when the audio jack receptacle information indicates that the audio jack receptacle includes an audio jack.
摘要翻译: 本文件尤其讨论了被配置为耦合到外部设备的音频插座的音频插座检测电路。 音频插孔检测电路被配置为接收音频插座信息,当音频插孔信息指示音频插孔插座为空时禁用振荡器,并且当音频插座信息指示音频插孔 插座包括音频插孔。
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公开(公告)号:US08817994B2
公开(公告)日:2014-08-26
申请号:US13188834
申请日:2011-07-22
申请人: John R. Turner , Seth M. Prentice
发明人: John R. Turner , Seth M. Prentice
IPC分类号: H04R29/00 , H03K5/1254
CPC分类号: H03K5/1254
摘要: This document provides apparatus and methods for providing low-power operation of an interface circuit during an interval when a port of the interface circuit is in an uncoupled state.
摘要翻译: 本文提供了在接口电路的端口处于非耦合状态的间隔期间提供接口电路的低功率操作的装置和方法。
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公开(公告)号:US20130169369A1
公开(公告)日:2013-07-04
申请号:US13341490
申请日:2011-12-30
申请人: John R. Turner , Tyler Daigle
发明人: John R. Turner , Tyler Daigle
IPC分类号: H03L7/00
CPC分类号: H03K3/02315 , H03L7/0805 , H03L7/099 , H03L2207/50
摘要: In one general aspect, an apparatus can include a reference oscillator counter circuit configured to produce a reference oscillator count value based on a reference oscillator signal, and a target oscillator counter circuit configured to produce a target oscillator count value based on a target oscillator signal where the target oscillator signal has a frequency targeted for calibration against a frequency of the reference oscillator signal. The apparatus can include a difference circuit configured to calculate a difference between the reference oscillator counter value and the target oscillator counter value, and a summation circuit configured to define a trim code based on only a portion of bit values from the difference.
摘要翻译: 在一个一般方面,一种装置可以包括:参考振荡器计数器电路,被配置为基于参考振荡器信号产生参考振荡器计数值;以及目标振荡器计数器电路,被配置为基于目标振荡器信号产生目标振荡器计数值, 目标振荡器信号具有针对基准振荡器信号的频率进行校准的频率。 该装置可以包括被配置为计算参考振荡器计数器值和目标振荡器计数器值之间的差的差分电路,以及被配置为仅基于来自差值的位值的一部分来定义修剪码的求和电路。
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公开(公告)号:US20120019306A1
公开(公告)日:2012-01-26
申请号:US13188834
申请日:2011-07-22
申请人: John R. Turner , Seth M. Prentice
发明人: John R. Turner , Seth M. Prentice
CPC分类号: H03K5/1254
摘要: This document provides apparatus and methods for providing low-power operation of an interface circuit during an interval when a port of the interface circuit is in an uncoupled state.
摘要翻译: 本文提供了在接口电路的端口处于非耦合状态的间隔期间提供接口电路的低功率操作的装置和方法。
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公开(公告)号:US20120019273A1
公开(公告)日:2012-01-26
申请号:US13188802
申请日:2011-07-22
申请人: John R. Turner , Nathan Charland
发明人: John R. Turner , Nathan Charland
IPC分类号: G01R31/3187
CPC分类号: G01R31/2844 , G01R31/2884 , G01R31/31701
摘要: This application provides apparatus and methods for initiating tests in an interface circuit without using inputs of the interface circuit dedicated to initiating the tests. In an example, a test mode interface circuit can include a voltage comparator configured compare a first voltage to a second voltage, a ripple counter configured to count pulses from a processor when the voltage comparator indicates that the first voltage is greater than the second voltage, and wherein the test mode interface circuit is configured to provide a test mode enable signal and an indication of the a desired test mode an interface circuit that includes the test mode interface circuit.
摘要翻译: 该应用提供用于在接口电路中启动测试而不使用专用于启动测试的接口电路的输入的装置和方法。 在一个示例中,测试模式接口电路可以包括将第一电压与第二电压进行比较的电压比较器,当电压比较器指示第一电压大于第二电压时,纹波计数器被配置为对来自处理器的脉冲进行计数, 并且其中所述测试模式接口电路被配置为提供测试模式使能信号和期望测试模式的指示,所述接口电路包括所述测试模式接口电路。
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公开(公告)号:USD418024S
公开(公告)日:1999-12-28
申请号:US90887
申请日:1998-07-20
申请人: George L. Howell , John R. Turner
设计人: George L. Howell , John R. Turner
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公开(公告)号:US08564375B2
公开(公告)日:2013-10-22
申请号:US13341490
申请日:2011-12-30
申请人: John R. Turner , Tyler Daigle
发明人: John R. Turner , Tyler Daigle
IPC分类号: H03L7/24
CPC分类号: H03K3/02315 , H03L7/0805 , H03L7/099 , H03L2207/50
摘要: In one general aspect, an apparatus can include a reference oscillator counter circuit configured to produce a reference oscillator count value based on a reference oscillator signal, and a target oscillator counter circuit configured to produce a target oscillator count value based on a target oscillator signal where the target oscillator signal has a frequency targeted for calibration against a frequency of the reference oscillator signal. The apparatus can include a difference circuit configured to calculate a difference between the reference oscillator counter value and the target oscillator counter value, and a summation circuit configured to define a trim code based on only a portion of bit values from the difference.
摘要翻译: 在一个一般方面,一种装置可以包括:参考振荡器计数器电路,被配置为基于参考振荡器信号产生参考振荡器计数值;以及目标振荡器计数器电路,被配置为基于目标振荡器信号产生目标振荡器计数值, 目标振荡器信号具有针对基准振荡器信号的频率进行校准的频率。 该装置可以包括被配置为计算参考振荡器计数器值和目标振荡器计数器值之间的差的差分电路,以及被配置为仅基于来自差值的位值的一部分来定义修剪码的求和电路。
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