公开(公告)号：US5691605A

公开(公告)日：1997-11-25

申请号：US512868

申请日：1995-08-09

申请人： Yongping Xia ,  Joshua Zhu ,  Sreeraman Venkitasubrahmanian ,  Raj Jayaraman ,  Thomas Farkas

发明人： Yongping Xia ,  Joshua Zhu ,  Sreeraman Venkitasubrahmanian ,  Raj Jayaraman ,  Thomas Farkas

IPC分类号： H05B41/38 ,  H05B37/02 ,  H05B41/285 ,  H05B41/36 ,  H05B41/392 ,  H02B37/02

CPC分类号： H05B41/2855 ,  H05B37/0263 ,  H05B41/2985 ,  H05B41/36 ,  H05B41/3921 ,  H05B41/3924 ,  Y10S315/04

摘要： A lamp controller includes an interface circuit, or receiver, which receives an input signal and decodes control signals supplied from a transmitting device, such as a power line wall controller, according to at least two of the following communication techniques: phase angle control, step control, and coded control. The receiver tests the input signal and identifies which type of control technique is employed by the wall controller connected to the lamp controller. The receiver then decodes the control command from the input signal. In a disclosed embodiment, the lamp controller is gas discharge lamp dimming ballast having a two wire input for connection to the hot dimmed and neutral leads of the power line controller. The ballast has an improved topology in which a pre-conditioner supplies a substantially constant DC voltage to a ballast stage including an inverter, a resonant tank output and a control circuit. The dim signal output by the receiver is independent of the DC rail voltage and, in combination with the maintenance of a substantially constant DC rail voltage, permits of improved dimming control while providing the ease of installation of a two wire ballast.

摘要翻译： 灯控制器包括接口电路或接收器，接口电路或接收器根据以下通信技术中的至少两个接收输入信号和解码从诸如电力线壁控制器的发送设备提供的控制信号：相位角控制，步骤 控制和编码控制。 接收机测试输入信号，并识别连接到灯控制器的墙壁控制器采用哪种类型的控制技术。 然后，接收器从输入信号解码控制命令。 在公开的实施例中，灯控制器是具有两线输入的气体放电灯调光镇流器，用于连接到电力线控制器的热调光和中性线。 镇流器具有改进的拓扑结构，其中预调节器向包括逆变器，谐振回路输出和控制电路的镇流器提供基本上恒定的DC电压。 由接收器输出的暗信号与直流轨道电压无关，并且与基本上恒定的直流轨电压的维持相结合，允许改进的调光控制，同时提供双线镇流器的易于安装。

公开(公告)号：US5850127A

公开(公告)日：1998-12-15

申请号：US644094

申请日：1996-05-10

申请人： Joshua Zhu ,  Sreeraman Venkitasubrahmanian

发明人： Joshua Zhu ,  Sreeraman Venkitasubrahmanian

IPC分类号： H05B41/298 ,  H05B41/392 ,  H05B37/02

CPC分类号： H05B41/3921 ,  H05B41/2988 ,  Y10S315/04

摘要： A dimming ballast lamp includes a lamp, a ballast circuit for converting AC input power to AC output power, a dimming interface circuit for generating a dimming control signal having a voltage level indicative of a selected dimming level of the lamp and a dimming circuit responsive to the dimming control signal for controlling operation of the ballast circuit. A feedback control circuit detects the lamp voltage and produces a feedback control signal in response to the lamp voltage exceeding a perscribed threshold voltage level. The dimming circuit, responsive to the feedback control signal, controls operation of the ballast circuit so as to increase lamp current thereby increasing the dimming level of the lamp, ensuring low temperature ignition of the lamp and protecting against lamp shutdown.

摘要翻译： 调光镇流器灯包括灯，用于将AC输入功率转换为AC输出功率的镇流器电路;调光接口电路，用于产生具有指示灯的选定调光电平的电压电平的调光控制信号，以及响应于 用于控制镇流器电路的操作的调光控制信号。 反馈控制电路检测灯电压并且响应于灯电压超过被摄阈值电压电平而产生反馈控制信号。 调光电路响应于反馈控制信号，控制镇流器电路的运行，从而增加灯电流，从而增加灯的调光电平，确保灯的低温点火并防止灯关闭。

公开(公告)号：US11612229B1

公开(公告)日：2023-03-28

申请号：US16860298

申请日：2020-04-28

申请人： Jonathan Pao ,  Joshua Zhu ,  Stacey Wong ,  Jialin Ke ,  Jordan Gorelick

发明人： Jonathan Pao ,  Joshua Zhu ,  Stacey Wong ,  Jialin Ke ,  Jordan Gorelick

IPC分类号： A45D29/02

摘要： A toenail trimmer is configured to aid elderly and flexibility-challenged individuals, and includes: a housing with an opening; a cutting member mounted within the housing with a portion proximate to the opening; a motor to drive the cutting member to remove a portion of a toenail inserted through the housing opening; and a shaft, with the housing positioned proximate to a first end of the shaft. The shaft includes a support member, such as a cuff, that is configured to releasably secure a first portion of the shaft to the user's upper arm, and an ergonomic handle portion configured for grasping by the user's hand. The ergonomic handle portion and the support member provide stable support for the toe nail trimmer at two positions with respect to the user's arm during use of the toe nail trimmer. The handle may cooperate with a base to provide support/guidance thereto.

公开(公告)号：US11382397B1

公开(公告)日：2022-07-12

申请号：US16860209

申请日：2020-04-28

申请人： Jonathan Pao ,  Joshua Zhu ,  Stacey Wong ,  Jialin Ke ,  Jordan Gorelick

发明人： Jonathan Pao ,  Joshua Zhu ,  Stacey Wong ,  Jialin Ke ,  Jordan Gorelick

IPC分类号： A45D29/02 ,  B25F5/02

摘要： A toenail trimmer is configured to aid elderly and flexibility-challenged individuals, and includes: a housing with an opening; a cutting member mounted within the housing with a portion proximate to the opening; a motor to drive the cutting member to remove a portion of a toenail inserted through the housing opening; and a shaft, with the housing positioned proximate to a first end of the shaft. The shaft includes a support member, such as a cuff, that is configured to releasably secure a first portion of the shaft to the user's upper arm, and an ergonomic handle portion configured for grasping by the user's hand. The ergonomic handle portion and the support member provide stable support for the toe nail trimmer at two positions with respect to the user's arm during use of the toe nail trimmer. The handle may cooperate with a base to provide support/guidance thereto.

公开(公告)号：US08452603B1

公开(公告)日：2013-05-28

申请号：US13615750

申请日：2012-09-14

申请人： Mindy Liu ,  Xin Zheng ,  Kaihua Zhu ,  Ning Wang ,  Joshua Zhu

发明人： Mindy Liu ,  Xin Zheng ,  Kaihua Zhu ,  Ning Wang ,  Joshua Zhu

IPC分类号： G06F17/28 ,  G06F3/16 ,  G10L13/02

CPC分类号： G06F3/167 ,  G06F9/454 ,  G06F17/289 ,  G10L13/02

摘要： Methods and systems for enhancement of device accessibility are described. In an example, an operating system configured to be executed on a device, may be configured to support a plurality of software applications and to support a plurality of modes of operation of the device. A given software application may include a user-interface comprising a user-interface item having a text in a first language. The operating system may be configured to receive a selection of the user-interface item of the given software application. Based on the operating system being in an accessibility mode common to the plurality of software applications, the operating system may be configured to determine a translation of the text into a second language; and a voice output corresponding to a spoken utterance of the translation of the text. The operating system further may be configured to provide, by the device, the voice output.

摘要翻译： 描述了用于增强设备可访问性的方法和系统。 在一个示例中，被配置为在设备上执行的操作系统可以被配置为支持多个软件应用并且支持设备的多种操作模式。 给定的软件应用可以包括包括具有第一语言的文本的用户界面项的用户界面。 操作系统可以被配置为接收给定软件应用的用户界面项的选择。 基于操作系统处于多个软件应用程序共同的可访问性模式，操作系统可以被配置为确定文本到第二语言的翻译; 以及对应于文本翻译的说出话语的语音输出。 操作系统还可以被配置为通过设备提供语音输出。