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1. 发明授权

US08143794B1 Low voltage light source driving circuit 有权
标题翻译：低压光源驱动电路
公开(公告)号：US08143794B1
公开(公告)日：2012-03-27
申请号：US12403320
申请日：2009-03-12
申请人： Eric Li , Shang-Kuan Tang , Yi Zhang
发明人： Eric Li , Shang-Kuan Tang , Yi Zhang
IPC分类号： H05B41/36
CPC分类号： H05B33/0812
摘要： A low voltage LED (Light Emitting Diode) driving circuit operates under low supply voltage to provide stable and reliable control of LEDs. The LED driving circuit includes a switching transistor to turn on or off an output current in the LED. The LED driving circuit also includes a control transistor for controlling the level of the output current. The two transistors are coupled via a node that is maintained at a low voltage to increase the voltage across the switching transistor. The increased voltage across the switching transistor allows faster switching and more stable control over different levels of output voltage. The LED driver also includes circuit components for matching the turn-on times and turn-off times for different levels of the output current.
摘要翻译：低电压LED（发光二极管）驱动电路在低电源电压下工作，为LED提供稳定可靠的控制。 LED驱动电路包括用于导通或关断LED中的输出电流的开关晶体管。 LED驱动电路还包括用于控制输出电流电平的控制晶体管。两个晶体管经由保持在低电压的节点耦合以增加开关晶体管两端的电压。开关晶体管两端的增加的电压允许更快的开关和对不同输出电压电平的更稳定的控制。 LED驱动器还包括用于匹配不同电平输出电流的导通时间和关断时间的电路组件。

2. 发明授权

US08963810B2 LED display systems 有权
标题翻译： LED显示系统
公开(公告)号：US08963810B2
公开(公告)日：2015-02-24
申请号：US13170181
申请日：2011-06-27
申请人： Eric Li , Chun Lu , Shahnad Nadershahi , Shang-Kuan Tang
发明人： Eric Li , Chun Lu , Shahnad Nadershahi , Shang-Kuan Tang
IPC分类号： G09G3/28 , G09G3/32
CPC分类号： G09G3/32 , G09G3/2003 , G09G3/2014 , G09G2310/0272 , G09G2310/08 , G09G2320/0257 , G09G2320/066 , G09G2320/0666 , G09G2330/12 , Y02B20/42
摘要： An LED display system comprises an LED array and an LED driver circuit. An LED driver circuit comprises components including a phase lock loop, a pulse width modulation engine, a configuration register, a gain adjustable fast charge current source, and a serial input/output interface. The components in this driver circuit may be integrated on a same chip. The LED array may be arranged in a common cathode configuration.
摘要翻译： LED显示系统包括LED阵列和LED驱动电路。 LED驱动器电路包括包括锁相环，脉宽调制引擎，配置寄存器，增益可调快速充电电流源和串行输入/输出接口的组件。该驱动器电路中的组件可以集成在同一芯片上。 LED阵列可以布置成共同的阴极配置。

3. 发明申请

US20120182164A1 Signal Transmission between a Controller and an Optical Pickup Unit 有权
标题翻译：控制器和光学拾取单元之间的信号传输
公开(公告)号：US20120182164A1
公开(公告)日：2012-07-19
申请号：US13350602
申请日：2012-01-13
申请人： Eric Li , Shang-Kuan Tang , Nedi Nadershahi
发明人： Eric Li , Shang-Kuan Tang , Nedi Nadershahi
IPC分类号： H03M7/00
CPC分类号： H03M5/06 , G11B7/126 , G11B20/10027 , G11B20/1407 , G11B2220/2537
摘要： An improved transmission protocol is used to transmit a signal between two components of an electronic device. The improved transmission protocol is configured to reduce the number of simultaneous channel transitions that occur when multiple signal channels are transmitted in parallel. Reducing the number of simultaneous channel transitions is beneficial because a signal that is subject to skew, distortion, or electromagnetic interference during transmission may have a shorter settling time when fewer channels undergo a transition simultaneously. When the protocol is used to transmit a signal from a controller to an optical pickup unit in an optical data storage system, the reduced settling times allow for a higher data transmission rate.
摘要翻译：改进的传输协议用于在电子设备的两个组件之间传输信号。改进的传输协议被配置为减少当多个信号信道并行发送时发生的同时信道转换的数量。减少同时信道转换的数量是有益的，因为在较少信道同时进行转换时，在发送期间经受偏斜，失真或电磁干扰的信号可能具有较短的建立时间。当协议用于在光学数据存储系统中将信号从控制器发送到光学拾取单元时，减小的建立时间允许更高的数据传输速率。

4. 发明授权

US09047810B2 Circuits for eliminating ghosting phenomena in display panel having light emitters 有权
标题翻译：用于消除具有发光体的显示面板中的重影现象的电路
公开(公告)号：US09047810B2
公开(公告)日：2015-06-02
申请号：US13397669
申请日：2012-02-15
申请人： Eric Li , Yutao Chen , Jianxin Xue , Wenjie Yang , Shoulin Li , Chun Lu , Zhifeng Wen , Shean-Yih Chiou , Shang-Kuan Tang , Shahnad Nadershahi
发明人： Eric Li , Yutao Chen , Jianxin Xue , Wenjie Yang , Shoulin Li , Chun Lu , Zhifeng Wen , Shean-Yih Chiou , Shang-Kuan Tang , Shahnad Nadershahi
IPC分类号： G09G3/32 , G09G3/36
CPC分类号： G09G3/32 , G09G2300/06 , G09G2310/0248 , G09G2310/0275 , G09G2330/025 , G09G2330/04
摘要： The present disclosure provides a circuit for discharging parasitic capacitance in a display panel with common-anode topology having a plurality of light emitters, as well as a circuit for charging parasitic capacitance in a display panel with common-cathode topology. In the common-cathode topology, the circuit includes a three-terminal device having a gate, a source, and a drain, wherein one of the source and the drain is electrically coupled to a common cathode of the light emitters, and a mechanism for controlling the three-terminal device, the mechanism being electrically coupled to the gate. Shortly after a previously selected light emitter is unselected, the mechanism turns on the three-terminal device to form a conductive path between the source and the drain. The mechanism turns off the three-terminal device after a voltage at the common cathode is increased to a predetermined voltage level or after a maximum period of time lapses.
摘要翻译：本公开提供了一种用于在具有多个发光体的共阳极拓扑的显示面板中放电寄生电容的电路，以及用于在具有共阴极拓扑的显示面板中对寄生电容进行充电的电路。在共阴极拓扑中，电路包括具有栅极，源极和漏极的三端子器件，其中源极和漏极之一电耦合到发光体的公共阴极，以及用于控制三端子装置，该机构电耦合到栅极。在未选择先前选择的光发射器之后不久，该机构使三端子器件导通，以在源极和漏极之间形成导电路径。在公共阴极上的电压增加到预定电压电平之后或经过最大时间段之后，该机构关闭三端子器件。

5. 发明授权

US08963811B2 LED display systems 有权
标题翻译： LED显示系统
公开(公告)号：US08963811B2
公开(公告)日：2015-02-24
申请号：US13237960
申请日：2011-09-21
申请人： Eric Li , Chun Lu , Shahnad Nadershahi , Shang-Kuan Tang
发明人： Eric Li , Chun Lu , Shahnad Nadershahi , Shang-Kuan Tang
IPC分类号： G09G3/28 , G09G3/34 , G09G5/10 , G09G3/32 , G09G3/20
CPC分类号： H05B33/0818 , G09G3/2018 , G09G3/32 , G09G3/3216 , G09G3/3283 , G09G3/3406 , G09G3/3413 , G09G3/3426 , G09G5/10 , G09G2320/0242 , G09G2320/0257 , G09G2320/0285 , G09G2320/029 , G09G2320/062 , G09G2320/064 , G09G2320/0666 , G09G2330/06 , H05B33/0857
摘要： An LED display system comprises an LED array and an LED driver circuit. An LED driver circuit comprises components including a phase lock loop, a pulse width modulation engine, a configuration register, a series of gain adjustable fast charge current sources, and a serial input/output interface. The components in this driver circuit may be integrated on a same chip. The LED array may be arranged in a common cathode configuration.
摘要翻译： LED显示系统包括LED阵列和LED驱动电路。 LED驱动器电路包括包括锁相环，脉宽调制引擎，配置寄存器，一系列增益可调快速充电电流源和串行输入/输出接口的组件。该驱动器电路中的组件可以集成在同一芯片上。 LED阵列可以布置成共同的阴极配置。

6. 发明授权

US08462025B2 Signal transmission between a controller and an optical pickup unit 有权
标题翻译：控制器和光学拾取单元之间的信号传输
公开(公告)号：US08462025B2
公开(公告)日：2013-06-11
申请号：US13350602
申请日：2012-01-13
申请人： Eric Li , Shang-Kuan Tang , Nedi Nadershahi
发明人： Eric Li , Shang-Kuan Tang , Nedi Nadershahi
IPC分类号： H03M5/00
CPC分类号： H03M5/06 , G11B7/126 , G11B20/10027 , G11B20/1407 , G11B2220/2537
摘要： An improved transmission protocol is used to transmit a signal between two components of an electronic device. The improved transmission protocol is configured to reduce the number of simultaneous channel transitions that occur when multiple signal channels are transmitted in parallel. Reducing the number of simultaneous channel transitions is beneficial because a signal that is subject to skew, distortion, or electromagnetic interference during transmission may have a shorter settling time when fewer channels undergo a transition simultaneously. When the protocol is used to transmit a signal from a controller to an optical pickup unit in an optical data storage system, the reduced settling times allow for a higher data transmission rate.
摘要翻译：改进的传输协议用于在电子设备的两个组件之间传输信号。改进的传输协议被配置为减少当多个信号信道并行发送时发生的同时信道转换的数量。减少同时信道转换的数量是有益的，因为在较少信道同时进行转换时，在发送期间经受偏斜，失真或电磁干扰的信号可能具有较短的建立时间。当协议用于在光学数据存储系统中将信号从控制器发送到光学拾取单元时，减小的建立时间允许更高的数据传输速率。

7. 发明申请

US20120206430A1 CIRCUITS FOR ELIMINATING GHOSTING PHENOMENA IN DISPLAY PANEL HAVING LIGHT EMITTERS 有权
标题翻译：用于消除具有发光体的显示面板中的GHOSTING PHENOMENA的电路
公开(公告)号：US20120206430A1
公开(公告)日：2012-08-16
申请号：US13397669
申请日：2012-02-15
申请人： Eric Li , Chun Lu , Jianxin Xue , Wenjie Yang , Watt Li , Yutao Chen , Zhifeng Wen , Shean-Yih Chiou , Shang-kuan Tang , Nedi Nadershashi
发明人： Eric Li , Chun Lu , Jianxin Xue , Wenjie Yang , Watt Li , Yutao Chen , Zhifeng Wen , Shean-Yih Chiou , Shang-kuan Tang , Nedi Nadershashi
IPC分类号： G09G5/00 , G09G3/32
CPC分类号： G09G3/32 , G09G2300/06 , G09G2310/0248 , G09G2310/0275 , G09G2330/025 , G09G2330/04
摘要： The present disclosure provides a circuit for discharging parasitic capacitance in a display panel with common-anode topology having a plurality of light emitters, as well as a circuit for charging parasitic capacitance in a display panel with common-cathode topology. In the common-cathode topology, the circuit includes a three-terminal device having a gate, a source, and a drain, wherein one of the source and the drain is electrically coupled to a common cathode of the light emitters, and a mechanism for controlling the three-terminal device, the mechanism being electrically coupled to the gate. Shortly after a previously selected light emitter is unselected, the mechanism turns on the three-terminal device to form a conductive path between the source and the drain. The mechanism turns off the three-terminal device after a voltage at the common cathode is increased to a predetermined voltage level or after a maximum period of time lapses.
摘要翻译：本公开提供了一种用于在具有多个发光体的共阳极拓扑的显示面板中放电寄生电容的电路，以及用于在具有共阴极拓扑的显示面板中对寄生电容进行充电的电路。在共阴极拓扑中，电路包括具有栅极，源极和漏极的三端子器件，其中源极和漏极之一电耦合到发光体的公共阴极，以及用于控制三端子装置，该机构电耦合到栅极。在未选择先前选择的光发射器之后不久，该机构使三端子器件导通，以在源极和漏极之间形成导电路径。在公共阴极上的电压增加到预定电压电平之后或经过最大时间段之后，该机构关闭三端子器件。

8. 发明授权

US07889609B2 Enhanced linearity DVD writing current circuit 有权
标题翻译：增强线性DVD写入电流电路
公开(公告)号：US07889609B2
公开(公告)日：2011-02-15
申请号：US12074485
申请日：2008-03-03
申请人： Eric Li , Yi Zhang
发明人： Eric Li , Yi Zhang
IPC分类号： G11B7/004
CPC分类号： G11B7/126
摘要： A writing current circuit (42) supplies a controlled electrical current to a laser diode (34) for recording data swiftly onto a DVD (16). A plurality of current sources (62) in the writing current circuit (42) supply electrical current directly to the laser diode (34). Each current source (62) respectively receives a single output signal from a current control register (52) included in the writing current circuit (42) which activates or deactivates the current source (62) for supplying a particular quantity of current to the laser diode (34). In one aspect, a pair of current reference signals received by the current source (62) control electrical current supply to the diode (34). Incorporated into these controlling reference signals is a simulation of electrical characteristics of the diode (34). In another aspect, each current source (62) responds to a logical inverse of the output signal from the current control register (52) for controlling overshoot in voltage applied across the diode (34).
摘要翻译：写入电流电路（42）将受控的电流提供给激光二极管（34），用于将数据迅速地记录到DVD（16）上。写入电流电路（42）中的多个电流源（62）直接向激光二极管（34）提供电流。每个电流源（62）分别从包括在写入电流电路（42）中的电流控制寄存器（52）接收单个输出信号，其激活或去激活用于向激光二极管提供特定数量的电流的电流源（62）（34）。在一个方面，由电流源（62）接收的一对电流参考信号控制对二极管（34）的电流供应。结合到这些控制参考信号中的是二极管（34）的电特性的模拟。在另一方面，每个电流源（62）响应来自电流控制寄存器（52）的输出信号的逻辑反相，用于控制施加在二极管（34）上的电压中的过冲。

9. 发明授权

US07916613B2 Higher performance DVD writing current circuit 有权
标题翻译：更高性能的DVD写入电流电路
公开(公告)号：US07916613B2
公开(公告)日：2011-03-29
申请号：US12448761
申请日：2008-01-07
申请人： Eric Li , Yi Zhang
发明人： Eric Li , Yi Zhang
IPC分类号： G11B7/00
CPC分类号： G11B7/00456 , G11B7/126
摘要： A writing current circuit (42) supplies a controlled electrical current to a laser diode (34) for recording data swiftly onto a DVD (16). A plurality of current sources (62) in the writing current circuit (42) supply electrical current to the laser diode (34). Each current source (62) respectively receives a single output signal from a current control register (52) included in the writing current circuit (42) which activates or deactivates the current source (62) for supplying a particular quantity of electrical current to the laser diode (34). In each current source (62), electrical current flows to the laser diode (34) through a MOSFET output transistor (142) connected in series with the laser diode (34). Each current source's MOSFET output transistor (142) has a gate insulating layer which is thinner than the gate insulating layer conventionally used for a MOSFET output transistor (142) that is energized by the electrical potential the it applied to the writing current circuit (42).
摘要翻译：写入电流电路（42）将受控电流提供给激光二极管（34），用于将数据迅速地记录到DVD（16）上。写入电流电路（42）中的多个电流源（62）向激光二极管（34）提供电流。每个电流源（62）分别从包括在写入电流电路（42）中的电流控制寄存器（52）接收单个输出信号，其激活或去激活用于向激光器提供特定数量的电流的电流源（62）二极管（34）。在每个电流源（62）中，电流通过与激光二极管（34）串联连接的MOSFET输出晶体管（142）流到激光二极管（34）。每个电流源的MOSFET输出晶体管（142）具有比通常用于MOSFET输出晶体管（142）的栅极绝缘层薄的栅极绝缘层，该栅极绝缘层被施加到写入电流电路（42）的电位激励，。

10. 发明授权

US08334660B2 Light source driving circuit with low operating output voltage 有权
标题翻译：光源驱动电路，工作输出电压低
公开(公告)号：US08334660B2
公开(公告)日：2012-12-18
申请号：US12783484
申请日：2010-05-19
申请人： Eric Li , Chun Lu , Yi Zhang
发明人： Eric Li , Chun Lu , Yi Zhang
IPC分类号： G05F1/00 , H05B37/02 , H05B39/04 , H05B41/36 , H05B39/02 , H05B37/00 , H05B39/00 , H05B41/00
CPC分类号： H05B33/0827
摘要： A driving circuit for regulating current in a light source using a tracking component. The tracking component detects the voltage difference between an input node in the input stage and an output node in the output stage. The input stage is connected to a current source and includes an input transistor. The output stage is connected to the light source and includes an output transistor. The tracking component generates an output that controls the input and output transistors based on the voltage difference between the input node and the output node so that the voltage at the input node tracks the voltage at the output node. By using the tracking component, the LED driver can achieve accurate current control through one output transistor instead of cascaded transistors, resulting in lower output operating voltage and reduced power dissipation of the LED driver. Further, the tracking component is intermittently operated or shared across different channels to reduce energy consumption of the LED driver.
摘要翻译：一种用于使用跟踪部件调节光源中的电流的驱动电路。跟踪组件检测输入级中的输入节点与输出级中的输出节点之间的电压差。输入级连接到电流源并包括输入晶体管。输出级连接到光源并包括输出晶体管。跟踪组件产生输出，其基于输入节点和输出节点之间的电压差来控制输入和输出晶体管，使得输入节点处的电压跟踪输出节点处的电压。通过使用跟踪组件，LED驱动器可以通过一个输出晶体管而不是级联晶体管实现精确的电流控制，从而降低输出工作电压并降低LED驱动器的功耗。此外，跟踪部件在不同的通道间歇地操作或共享以减少LED驱动器的能量消耗。

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