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1. 发明授权

US5561351A Dimmer for electrodeless discharge lamp 失效
标题翻译：调光器用于无电极放电灯
公开(公告)号：US5561351A
公开(公告)日：1996-10-01
申请号：US329696
申请日：1994-10-26
申请人： Nickolas G. Vrionis , Roger Siao , Donald E. Pezzolo , James W. Pfeiffer , Derek Bray , Larry A. Lincoln
发明人： Nickolas G. Vrionis , Roger Siao , Donald E. Pezzolo , James W. Pfeiffer , Derek Bray , Larry A. Lincoln
IPC分类号： H05B41/24 , H05B41/36 , H05B41/392 , H05B41/16
CPC分类号： H05B41/36 , H05B41/24 , H05B41/3927 , Y10S315/04
摘要： An arrangement for adjusting the intensity of an electrodeless discharge lamp is described. In one embodiment the high-frequency signal delivered to the induction coil is interrupted during a predetermined portion of a full duty cycle. This function is provided by a dimmer control unit which may be in an analog or digital form and may respond to a control signal provided by a potentiometer, a three-way lighting fixture or an addressable, remote controlled interface with data transmitted over the power lines or over a radio or infrared communication channel. In another embodiment the dimmer control unit alters the amplitude of the high-frequency signal supplied to the lamp's induction coil.
摘要翻译：描述了一种用于调节无电极放电灯的强度的装置。在一个实施例中，传送到感应线圈的高频信号在整个占空比的预定部分期间被中断。该功能由调光器控制单元提供，调光器控制单元可以是模拟或数字形式，并且可以响应由电位器，三向照明灯具或可寻址的远程控制接口提供的控制信号，该接口具有通过电力线传输的数据或通过无线电或红外通信信道。在另一个实施例中，调光器控制单元改变提供给灯的感应线圈的高频信号的振幅。

2. 发明授权

US5387850A Electrodeless discharge lamp containing push-pull class E amplifier 失效
标题翻译：无电极放电灯含有推挽式E放大器
公开(公告)号：US5387850A
公开(公告)日：1995-02-07
申请号：US894020
申请日：1992-06-05
申请人： Derek Bray , Timothy P. Murphy
发明人： Derek Bray , Timothy P. Murphy
IPC分类号： H05B41/24 , H05B41/28 , H05B37/00
CPC分类号： H05B41/2806 , H05B41/24 , Y02B20/22
摘要： A push-pull Class E amplifier is used to provide an efficient transfer of power to the induction coil in an electrodeless discharge lamp and to minimize the amount of radio frequency interference emitted by the lamp into the surrounding environment.
摘要翻译：推挽E级放大器用于提供无电极放电灯中的感应线圈的有效功率传递，并将灯发射到周围环境中的射频干扰量最小化。

3. 发明授权

US5349271A Electrodeless discharge lamp with spiral induction coil 失效
标题翻译：无电极放电灯带螺旋感应线圈
公开(公告)号：US5349271A
公开(公告)日：1994-09-20
申请号：US36303
申请日：1993-03-24
申请人： Ron van Os , Derek Bray
发明人： Ron van Os , Derek Bray
IPC分类号： H01J65/04 , H05B41/24 , H05B41/28 , H05B41/282 , H05B41/16
CPC分类号： H01J65/048 , H05B41/24 , H05B41/2806 , H05B41/2827 , Y02B20/22
摘要： An electrodeless discharge lamp includes a discharge vessel containing an ionizable vapor, a generator for providing a high frequency signal, and an induction coil adjacent the discharge vessel and connected to the generator. The induction coil is shaped in the form of a planar spiral. The spiral coil is formed of wire or made of metal etched in a spiral pattern onto a substrate. The electrodeless discharge lamp having a spiral induction coil shows low lumen depreciation, a high linear relationship between light output and power input and produces low radio frequency interference.
摘要翻译：无电极放电灯包括容纳可电离蒸气的放电容器，用于提供高频信号的发生器和与放电容器相邻并连接到发生器的感应线圈。感应线圈成形为平面螺旋形。螺旋线圈由金属丝制成，或以螺旋形图案蚀刻成金属的材料形成在基底上。具有螺旋感应线圈的无电极放电灯显示出低流明衰减，光输出与功率输入之间的高线性关系，并产生低的射频干扰。

4. 发明授权

US06346711B1 High-speed optocoupler driver 失效
标题翻译：高速光耦驱动器
公开(公告)号：US06346711B1
公开(公告)日：2002-02-12
申请号：US09342532
申请日：1999-06-29
申请人： Derek Bray
发明人： Derek Bray
IPC分类号： G02B2700
CPC分类号： H03K17/04123 , H04B10/802
摘要： The response time of a driver for an LED optocoupler is improved by adding a pedestal current component (IP) to the LED drive on turn-on. The pedestal current speeds up or accelerates the turn-on process by providing an additional amount of current for a short period of time.
摘要翻译：通过在启动时向LED驱动器添加基座电流分量（IP），LED驱动器对LED光耦合器的响应时间将得到改善。基座电流通过在短时间内提供额外的电流来加速或加速开启过程。

5. 发明授权

US5525871A Electrodeless discharge lamp containing push-pull class E amplifier and bifilar coil 失效
标题翻译：无电极放电灯含有推挽式E放大器和双线圈
公开(公告)号：US5525871A
公开(公告)日：1996-06-11
申请号：US382824
申请日：1995-02-03
申请人： Derek Bray , Timothy P. Murphy , Lance T. Klinger
发明人： Derek Bray , Timothy P. Murphy , Lance T. Klinger
IPC分类号： H05B41/24 , H05B41/28 , H05B41/16
CPC分类号： H03F3/217 , H05B41/24 , H05B41/2806 , Y02B20/22
摘要： A push-pull Class E amplifier is used to provide an efficient transfer of power to the induction coil in an electrodeless discharge lamp and to reduce the amount of radio frequency interference emitted by the lamp into the surrounding environment. A bifilar or other type of multifilar induction coil, preferably center-tapped, is used to further reduce the radio frequency interference problem.
摘要翻译：推挽E级放大器用于提供无电极放电灯中的感应线圈的有效功率传递，并且减少由灯发射到周围环境中的射频干扰量。使用双绞线或其他类型的多相感应线圈，优选是中心抽头的，以进一步减少射频干扰问题。

6. 发明授权

US4068139A IC compatible variable shunt impedance for Dolby B system 失效
标题翻译：用于杜比B系统的IC兼容的可变分流阻抗
公开(公告)号：US4068139A
公开(公告)日：1978-01-10
申请号：US710958
申请日：1976-08-09
申请人： Derek Bray
发明人： Derek Bray
IPC分类号： H03G1/00 , H03G9/18 , H04B1/64 , H03G7/06 , H03K1/14
CPC分类号： H04B1/64 , H03G1/0035 , H03G9/18
摘要： A current variable shunt impedance with a non-linear control characteristic intended to functionally imitate and replace a field effect transistor responsive to a control voltage applied to its gate electrode having a source-drain path connected as a variable impedance shunt resistor in the variable frequency high pass filter section of the commercially popular Dolby B noise reduction system. The invention allows a large part of the Dolby B encode decode circuitry to be embodied in low-cost integrated circuit form while maintaining performance characteristics which closely match existing standards. These standards were previously established using noise reduction systems fabricated from discrete circuit components. The complementary nature of the encode and decode operations used to process a signal makes such matching of performance characteristics to the established standards critical.
摘要翻译：具有非线性控制特性的电流可变分流阻抗，其功能上模拟和替换场效应晶体管，所述场效应晶体管响应于施加到其栅电极的控制电压，其源极 - 漏极路径以可变频率高度连接为可变阻抗并联电阻器商业流行的杜比B降噪系统的通过滤波器部分。本发明允许大部分杜比B编码解码电路以低成本集成电路形式实现，同时保持与现有标准紧密匹配的性能特征。以前使用由分立电路组件制造的降噪系统建立了这些标准。用于处理信号的编码和解码操作的互补性质使得性能特征与已建立标准的匹配成为关键。

7. 发明授权

US06373045B1 High speed optocoupler detector 失效
标题翻译：高速光耦检测器
公开(公告)号：US06373045B1
公开(公告)日：2002-04-16
申请号：US09342804
申请日：1999-06-29
申请人： Derek Bray
发明人： Derek Bray
IPC分类号： H01J4014
CPC分类号： H04B10/801 , G01J1/44
摘要： The delay and distortion characteristics of an optical detector can be improved with a comparator having tailored offsets and hysteresis. The comparator is controlled by the output of a transimpedance amplifier, coupled in part through a delay mechanism. The delay mechanism provides a dynamic reference level to one terminal of the comparator.
摘要翻译：具有定制偏移和迟滞的比较器可以提高光学检测器的延迟和失真特性。比较器由跨阻抗放大器的输出控制，部分通过延迟机构耦合。延迟机制为比较器的一个端子提供动态参考电平。

8. 发明授权

US5801587A Variable gain peak detector 失效
标题翻译：可变增益峰值检测器
公开(公告)号：US5801587A
公开(公告)日：1998-09-01
申请号：US730841
申请日：1996-09-26
申请人： Derek Bray
发明人： Derek Bray
IPC分类号： H03G7/08 , H03G3/30
CPC分类号： H03G7/08
摘要： An improved peak detector for an audio limiter is disclosed where the audio limiter comprises preferably a voltage controlled amplifier and the feedback detector in a feedback arrangement. The peak detector has a resistive capacitive load and either charges or discharges more rapidly when the difference between the output of the peak detector and the output of the voltage controlled amplifier increases. As a result, over much of the range of operation of that difference, the charging or discharging current is linear with the output of the amplifier to provide a constant transconductance gain. However, when the difference exceeds a predetermined maximum, the circuit limits that current, thereby, decreasing the transconductance gain of the circuit.
摘要翻译：公开了一种用于音频限幅器的改进的峰值检测器，其中音频限幅器优选地包括电压控制放大器和反馈装置中的反馈检测器。当峰值检测器的输出与压控放大器的输出之间的差异增加时，峰值检测器具有电阻性容性负载，并且可以更快地进行充电或放电。结果，在该差异的大部分操作范围内，充电或放电电流与放大器的输出是线性的，以提供恒定的跨导增益。然而，当该差超过预定的最大值时，该电路限制该电流，从而减小该电路的跨导增益。

9. 发明授权

US3676789A Low distortion agc amplifier 失效
标题翻译：低失真AGC放大器
公开(公告)号：US3676789A
公开(公告)日：1972-07-11
申请号：US3676789D
申请日：1970-11-16
申请人： DEREK BRAY
发明人： BRAY DEREK
IPC分类号： H03G1/00 , H03G3/30
CPC分类号： H03G1/0023 , H03G3/3036
摘要： A linear amplifier in an automatic gain control circuit whose gain is a function of the ratio of two bias currents is obtained by selectively coupling two pairs of semiconductor devices such that the effects of nonlinearities due to the logarithmic relationship between voltage and current across a PN junction cancel. The relationship between the two pairs of devices is such that the output signal from the second pair of devices is linearly related to the input signal driving the first pair of devices.
摘要翻译：通过选择性地耦合两对半导体器件获得增益是两个偏置电流比的函数的自动增益控制电路中的线性放大器，使得由于PN结上的电压和电流之间的对数关系引起的非线性的影响取消。两对器件之间的关系使得来自第二对器件的输出信号与驱动第一对器件的输入信号线性相关。

10. 发明授权

US06362467B1 Fast-switching comparator with hysteresis 失效
标题翻译：具有迟滞的快速开关比较器
公开(公告)号：US06362467B1
公开(公告)日：2002-03-26
申请号：US09425273
申请日：1999-10-21
申请人： Derek Bray
发明人： Derek Bray
IPC分类号： H03R524
CPC分类号： H03F3/087 , H03K5/2481
摘要： Fast switching may be achieved in a comparator by driving a comparator stage with a gain amplifier and feeding back the output signal from the comparator to the gain amplifier.
摘要翻译：通过用增益放大器驱动比较器级并将输出信号从比较器反馈到增益放大器，可以在比较器中实现快速切换。

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