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1. 发明申请

US20090033419A1 CLASS D AMPLIFIER WITH INCREASED EFFICIENCY 有权
标题翻译：具有提高效率的D类放大器
公开(公告)号：US20090033419A1
公开(公告)日：2009-02-05
申请号：US11831941
申请日：2007-07-31
申请人： Lance Weston , Tony T. Li , John J. Ryan
发明人： Lance Weston , Tony T. Li , John J. Ryan
IPC分类号： H03F3/217 , H03F3/38
CPC分类号： H03F3/2173 , H03F1/0205 , H03F2200/03 , H03F2200/114 , H03F2200/321 , H03F2200/351
摘要： The present invention is a method of operating a speaker by converting an audio signal to a pulse-width modulated signal that has a plurality of positive pulses and a plurality of negative pulses as a function of the audio signal, then driving an H-bridge circuit interconnected to a speaker, wherein the H-bridge circuit comprises an A-side and a B-side, wherein the A-side comprises a first switching transistor and a second switching transistor, and wherein the B-side comprises a first switching transistor and a second switching transistor. For each positive pulse, the A-side of the H-bridge circuit is driven by pushing the first switching transistor of the A-side while grounding the second switching transistor of the A-side. For each negative pulse, the B-side of the H-bridge circuit is driven by pushing the first switching transistor of the B-side while grounding the second switching transistor of the B-side.
摘要翻译：本发明是一种通过将音频信号转换成具有作为音频信号的函数的多个正脉冲和多个负脉冲的脉冲宽度调制信号来操作扬声器的方法，然后驱动H桥电路互连到扬声器，其中所述H桥电路包括A侧和B侧，其中所述A侧包括第一开关晶体管和第二开关晶体管，并且其中所述B侧包括第一开关晶体管和第二开关晶体管。对于每个正脉冲，通过在A侧的第二开关晶体管接地的同时推动A侧的第一开关晶体管来驱动H桥电路的A侧。对于每个负脉冲，通过在B侧的第二开关晶体管接地的同时推动B侧的第一开关晶体管来驱动H桥电路的B侧。

2. 发明授权

US07479893B2 Method and apparatus of generating a voice siren in a security system 有权
标题翻译：在安全系统中产生语音警报的方法和装置
公开(公告)号：US07479893B2
公开(公告)日：2009-01-20
申请号：US11322107
申请日：2005-12-29
申请人： Lance Weston , David Mole , Richard H. Hinkson
发明人： Lance Weston , David Mole , Richard H. Hinkson
IPC分类号： G08B17/10
CPC分类号： G08B25/14 , G08B3/10 , G08B25/012
摘要： A security device including a control panel for transmitting a pre-defined cadence pattern to a siren device. The siren device takes the pre-defined cadence pattern as an input and outputs an audible voice message that corresponds to the pre-defined cadence pattern. The siren device is capable of recognizing the pre-defined cadence pattern that indicates a security system armed or disarmed command from a user interface device as well as a detected alarm signal of fire, burglary and carbon monoxide from a corresponding smoke, motion and carbon monoxide detector. These signals are transmitted from either the sensors or user interface means to the control panel and then, in turn, to the siren device.
摘要翻译：一种安全装置，包括用于将预定义的节奏模式发送到警号装置的控制面板。警报设备将预定义的节奏模式作为输入，并输出与预定义节奏模式相对应的可听话音消息。警报装置能够识别表示来自用户界面装置的安全系统武装或撤防命令的预定义节奏模式，以及来自相应烟雾，运动和一氧化碳的检测到的火灾，爆窃和一氧化碳的报警信号探测器。这些信号从传感器或用户接口装置传送到控制面板，然后再传送到警号装置。

3. 发明授权

US07764528B2 AC to DC conversion circuit 有权
标题翻译：交直流转换电路
公开(公告)号：US07764528B2
公开(公告)日：2010-07-27
申请号：US11862066
申请日：2007-09-26
申请人： Lance Weston , Mark H. Schmidt , Tony T. Li
发明人： Lance Weston , Mark H. Schmidt , Tony T. Li
IPC分类号： H02M7/02
CPC分类号： H03G1/0082 , H03G3/301
摘要： A half-wave rectifier including an input port for receiving an incoming AC signal, an output port for outputting a half-wave rectified signal, an operational amplifier including inverting and non-inverting input terminals and an output terminal, the inverting input terminal connected to a ground reference and a non-inverting input terminal coupled to a negative feedback loop and a first resistor. The negative feedback loop including a second resistor coupled between a first node and a second node, the first node coupling the output terminal and the output port and the second node coupling the non-inverting input terminal and the second resistor. A capacitor is coupled to the input port and in series with the first resistor.
摘要翻译：一种半波整流器，包括用于接收输入AC信号的输入端口，用于输出半波整流信号的输出端口，包括反相和非反相输入端子的运算放大器和输出端子，所述反相输入端子连接到耦合到负反馈回路和第一电阻器的接地参考和非反相输入端子。负反馈回路包括耦合在第一节点和第二节点之间的第二电阻器，耦合输出端子和输出端口的第一节点和耦合非反相输入端子和第二电阻器的第二节点。电容器耦合到输入端口并与第一电阻串联。

4. 发明授权

US07619471B2 Class D amplifier with increased efficiency 有权
标题翻译： D类放大器提高了效率
公开(公告)号：US07619471B2
公开(公告)日：2009-11-17
申请号：US11831941
申请日：2007-07-31
申请人： Lance Weston , Tony T Li , John J Ryan
发明人： Lance Weston , Tony T Li , John J Ryan
IPC分类号： H03F3/217
CPC分类号： H03F3/2173 , H03F1/0205 , H03F2200/03 , H03F2200/114 , H03F2200/321 , H03F2200/351
摘要： The present invention is a method of operating a speaker by converting an audio signal to a pulse-width modulated signal that has a plurality of positive pulses and a plurality of negative pulses as a function of the audio signal, then driving an H-bridge circuit interconnected to a speaker, wherein the H-bridge circuit comprises an A-side and a B-side, wherein the A-side comprises a first switching transistor and a second switching transistor, and wherein the B-side comprises a first switching transistor and a second switching transistor. For each positive pulse, the A-side of the H-bridge circuit is driven by pushing the first switching transistor of the A-side while grounding the second switching transistor of the A-side. For each negative pulse, the B-side of the H-bridge circuit is driven by pushing the first switching transistor of the B-side while grounding the second switching transistor of the B-side.
摘要翻译：本发明是一种通过将音频信号转换成具有作为音频信号的函数的多个正脉冲和多个负脉冲的脉冲宽度调制信号来操作扬声器的方法，然后驱动H桥电路互连到扬声器，其中所述H桥电路包括A侧和B侧，其中所述A侧包括第一开关晶体管和第二开关晶体管，并且其中所述B侧包括第一开关晶体管和第二开关晶体管。对于每个正脉冲，通过在A侧的第二开关晶体管接地的同时推动A侧的第一开关晶体管来驱动H桥电路的A侧。对于每个负脉冲，通过在B侧的第二开关晶体管接地的同时推动B侧的第一开关晶体管来驱动H桥电路的B侧。

5. 发明授权

US07576624B2 System and method for extending universal bus line length 有权
标题翻译：扩展通用总线长度的系统和方法
公开(公告)号：US07576624B2
公开(公告)日：2009-08-18
申请号：US11434458
申请日：2006-05-15
申请人： Lance Weston , Tony T. Li , John J. Ryan
发明人： Lance Weston , Tony T. Li , John J. Ryan
IPC分类号： H04B3/04 , H04L25/03
CPC分类号： G06F13/4072 , H04B1/62 , H04B3/06
摘要： A system and method for recovering a high frequency component of a slew rate controlled signal propagating along a transmission line enables the high frequency component to be recovered after being lost because of slew rate control and transmission line low pass filtering effects. The system includes a wave shaping circuit for receiving and shaping the slew rate controlled signal to recover the high frequency component. The method includes receiving the slew rate controlled signal, and recovering the high frequency component by shaping the slew rate controlled signal to produce a shaped signal, where the shaped signal includes the received slew rate controlled signal and the high frequency component.
摘要翻译：用于恢复沿着传输线传播的转换速率控制信号的高频分量的系统和方法使得能够在由于压摆率控制和传输线低通滤波效应而在丢失之后恢复高频分量。该系统包括波形整形电路，用于接收和整形转换速率控制信号以恢复高频分量。该方法包括接收压摆率控制信号，并通过整形转换速率控制信号来恢复高频分量，以产生成形信号，其中成形信号包括接收转换速率控制信号和高频分量。

6. 发明授权

US07573239B2 Circuit for monitoring batteries in a parallel configuration while under load 失效
标题翻译：在负载下并联配置的电池监视电路
公开(公告)号：US07573239B2
公开(公告)日：2009-08-11
申请号：US11648529
申请日：2006-12-29
申请人： Lance Weston , Tony T. Li , John J. Ryan
发明人： Lance Weston , Tony T. Li , John J. Ryan
IPC分类号： H02J7/00 , G08B21/00
CPC分类号： H02J7/0021 , H02J2007/0067
摘要： The invention includes a circuit to monitor batteries arranged in a parallel battery configuration for charge/discharge battery circuit operation. The circuit selectively tests for each battery's presence in a battery holder or receptacle without interrupting circuit discharging operation, e.g., physical removal, and communicates a fault condition if the battery is determined to be missing. The inventive circuit enables existing or legacy control circuitry operating with the circuit to detect individual missing batteries where the legacy control circuitry is constructed to detect only missing circuit charge paths states.
摘要翻译：本发明包括一种用于监视以并联电池配置布置的用于对电池电路进行充电/放电操作的电池的电路。电路选择性地测试每个电池在电池座或插座中的存在而不中断电路放电操作，例如物理去除，并且如果确定电池被丢失则传达故障状况。本发明的电路使得能够利用电路操作的现有或遗留的控制电路检测遗留控制电路被构造为仅检测缺失的电路电荷路径状态的各个缺失的电池。

7. 发明授权

US07489158B2 Feedback circuit for line load compensation and reflection reduction 失效
标题翻译：用于线路负载补偿和反射减少的反馈电路
公开(公告)号：US07489158B2
公开(公告)日：2009-02-10
申请号：US11324095
申请日：2005-12-30
申请人： Lance Weston , Richard H. Hinkson , David Mole
发明人： Lance Weston , Richard H. Hinkson , David Mole
IPC分类号： H03K17/16 , H03K19/003 , H03K19/094 , H03K19/173 , G06F7/38
CPC分类号： H04L25/0272 , H04L25/0298
摘要： Line load compensation and reflection reduction in a signal transmitting circuit is provided using feedback capacitors. The feedback capacitor serially coupled with a resistance generates an RC rise/fall time that is independent of the line load. Additionally, by selecting a capacitor that yields a rise/fall time of approximately ⅓ of the maximum bit transmission time, signal reflection on the signal line can be reduced. Accordingly, by incorporating the feedback capacitor with a differential drive circuit, such as the IB 485 driver, variations in line load can be compensated for while also reducing signal reflection due to un-terminated or improperly terminated signal lines, thus allowing a free topology implementation.
摘要翻译：使用反馈电容器提供信号发送电路中的线路负载补偿和反射减少。与电阻串联耦合的反馈电容产生独立于线路负载的RC上升/下降时间。此外，通过选择产生大于最大位传输时间的1/3的上升/下降时间的电容器，可以减少信号线上的信号反射。因此，通过将反馈电容器与诸如IB485驱动器的差分驱动电路并入，可以补偿线路负载的变化，同时还减少由于未终止或不正确终止的信号线引起的信号反射，从而允许自由拓扑实现。

8. 发明申请

US20090036076A1 SECURITY SYSTEM WITH DYNAMIC RANGE ENHANCEMENT FOR FM DEMODULATION 有权
标题翻译：用于调频解调的动态范围增强的安全系统
公开(公告)号：US20090036076A1
公开(公告)日：2009-02-05
申请号：US11831395
申请日：2007-07-31
申请人： Lance Weston , Tony T. Li , Mark H. Schmidt
发明人： Lance Weston , Tony T. Li , Mark H. Schmidt
IPC分类号： H04B1/16
CPC分类号： H04L27/14 , H04L2027/0028 , H04L2027/0055
摘要： A system and method for communicating between a base and a remote device in a security system. The base receives an audio signal from a telephone network via a panel and then frequency modulates the audio signal at a carrier frequency to generate an FM signal. The remote device receives the FM signal from the base, determines a phase error signal representing the phase error between the received FM signal and an output signal of a voltage controlled oscillator, determines a difference between the carrier frequency and a center frequency of the voltage controlled oscillator, and, if there is a difference, then changes the center frequency of the voltage controlled oscillator to match the carrier frequency of the FM signal.
摘要翻译：一种用于在安全系统中的基站和远程设备之间进行通信的系统和方法。基座通过面板从电话网接收音频信号，然后以载波频率对音频信号进行频率调制，以产生FM信号。远程设备从基座接收FM信号，确定表示接收的FM信号与压控振荡器的输出信号之间的相位误差的相位误差信号，确定载波频率与受控电压的中心频率之间的差值振荡器，如果有差异，则改变压控振荡器的中心频率以匹配FM信号的载波频率。

9. 发明申请

US20070170953A1 System and method for extending universal bus line length 有权
标题翻译：扩展通用总线长度的系统和方法
公开(公告)号：US20070170953A1
公开(公告)日：2007-07-26
申请号：US11434458
申请日：2006-05-15
申请人： Lance Weston , Tony Li , John Ryan
发明人： Lance Weston , Tony Li , John Ryan
IPC分类号： H03K19/003
CPC分类号： G06F13/4072 , H04B1/62 , H04B3/06
摘要： A system and method for recovering a high frequency component of a slew rate controlled signal propagating along a transmission line enables the high frequency component to be recovered after being lost because of slew rate control and transmission line low pass filtering effects. The system includes a wave shaping circuit for receiving and shaping the slew rate controlled signal to recover the high frequency component. The method includes receiving the slew rate controlled signal, and recovering the high frequency component by shaping the slew rate controlled signal to produce a shaped signal, where the shaped signal includes the received slew rate controlled signal and the high frequency component.
摘要翻译：用于恢复沿着传输线传播的转换速率控制信号的高频分量的系统和方法使得能够在由于压摆率控制和传输线低通滤波效应而在丢失之后恢复高频分量。该系统包括波形整形电路，用于接收和整形转换速率控制信号以恢复高频分量。该方法包括接收压摆率控制信号，并通过整形转换速率控制信号来恢复高频分量，以产生成形信号，其中成形信号包括接收转换速率控制信号和高频分量。

10. 发明申请

US20070164779A1 Feedback circuit for line load compensation and reflection reduction 失效
标题翻译：用于线路负载补偿和反射减少的反馈电路
公开(公告)号：US20070164779A1
公开(公告)日：2007-07-19
申请号：US11324095
申请日：2005-12-30
申请人： Lance Weston , Richard Hinkson , David Mole
发明人： Lance Weston , Richard Hinkson , David Mole
IPC分类号： H03K17/16
CPC分类号： H04L25/0272 , H04L25/0298
摘要： Line load compensation and reflection reduction in a signal transmitting circuit is provided using feedback capacitors. The feedback capacitor serially coupled with a resistance generates an RC rise/fall time that is independent of the line load. Additionally, by selecting a capacitor that yields a rise/fall time of approximately ⅓ of the maximum bit transmission time, signal reflection on the signal line can be reduced. Accordingly, by incorporating the feedback capacitor with a differential drive circuit, such as the IB 485 driver, variations in line load can be compensated for while also reducing signal reflection due to un-terminated or improperly terminated signal lines, thus allowing a free topology implementation.
摘要翻译：使用反馈电容器提供信号发送电路中的线路负载补偿和反射减少。与电阻串联耦合的反馈电容产生独立于线路负载的RC上升/下降时间。此外，通过选择产生大于最大位传输时间的1/3的上升/下降时间的电容器，可以减少信号线上的信号反射。因此，通过将反馈电容器与诸如IB485驱动器的差分驱动电路并入，可以补偿线路负载的变化，同时还减少由于未终止或不正确终止的信号线引起的信号反射，从而允许自由拓扑实现。

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