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1. 发明授权

US08325583B2 Laser diode driver with wave-shape control 有权
标题翻译：具有波形控制的激光二极管驱动器
公开(公告)号：US08325583B2
公开(公告)日：2012-12-04
申请号：US12758160
申请日：2010-04-12
申请人： Douglas Warren Dean , Shengyuan Li , Indumini W. Ranmuthu
发明人： Douglas Warren Dean , Shengyuan Li , Indumini W. Ranmuthu
IPC分类号： G11B7/00
CPC分类号： G11B7/126 , G11B7/00456
摘要： An optical disk drive system associated with a laser diode is described. The optical disk drive system comprises a current generator for receiving input signals; a current switch coupled to receive timing signals; a current driver coupled to receive output signals from the current switch and the current generator, the current driver further comprising a driver with wave shape control selected from the group consisting of a laser diode read driver and a laser diode write driver, wherein the driver with shape control is operative for transmitting at least one output signal that is a scaled version of at least one of the output signals received from the current generator, wherein the current driver is operative for transmitting at least one output signal driving the laser diode.
摘要翻译：描述了与激光二极管相关联的光盘驱动器系统。光盘驱动系统包括用于接收输入信号的电流发生器; 耦合以接收定时信号的电流开关; 电流驱动器，其耦合以从电流开关和电流发生器接收输出信号，所述电流驱动器还包括从由激光二极管读取驱动器和激光二极管写入驱动器组成的组中选择的波形控制的驱动器，其中所述驱动器具有形状控制用于发送至少一个输出信号，其是从电流发生器接收的至少一个输出信号的缩放版本，其中当前驱动器用于传输驱动该激光二极管的至少一个输出信号。

2. 发明申请

US20100315918A1 LASER DIODE DRIVER WITH WAVE-SHAPE CONTROL 有权
标题翻译：激光二极管驱动器与波形控制
公开(公告)号：US20100315918A1
公开(公告)日：2010-12-16
申请号：US12758160
申请日：2010-04-12
申请人： Douglas Warren Dean , Shengyuan Li , Indumini W. Ranmuthu
发明人： Douglas Warren Dean , Shengyuan Li , Indumini W. Ranmuthu
IPC分类号： G11B20/00 , G11B7/00
CPC分类号： G11B7/126 , G11B7/00456
摘要： An optical disk drive system associated with a laser diode is described. The optical disk drive system comprises a current generator for receiving input signals; a current switch coupled to receive timing signals; a current driver coupled to receive output signals from the current switch and the current generator, the current driver further comprising a driver with wave shape control selected from the group consisting of a laser diode read driver and a laser diode write driver, wherein the driver with shape control is operative for transmitting at least one output signal that is a scaled version of at least one of the output signals received from the current generator, wherein the current driver is operative for transmitting at least one output signal driving the laser diode.
摘要翻译：描述了与激光二极管相关联的光盘驱动器系统。光盘驱动系统包括用于接收输入信号的电流发生器; 耦合以接收定时信号的电流开关; 电流驱动器，其耦合以从电流开关和电流发生器接收输出信号，所述电流驱动器还包括从由激光二极管读取驱动器和激光二极管写入驱动器组成的组中选择的波形控制的驱动器，其中所述驱动器具有形状控制用于发送至少一个输出信号，该至少一个输出信号是从电流发生器接收的至少一个输出信号的缩放版本，其中当前驱动器用于传输驱动该激光二极管的至少一个输出信号。

3. 发明授权

US08174953B2 Input current channel device 有权
标题翻译：输入电流通道器件
公开(公告)号：US08174953B2
公开(公告)日：2012-05-08
申请号：US12622559
申请日：2009-11-20
申请人： Shengyuan Li , Indumini W. Ranmuthu , Marius V. Dina
发明人： Shengyuan Li , Indumini W. Ranmuthu , Marius V. Dina
IPC分类号： G11B7/00
CPC分类号： G11B7/126 , G11B7/00456
摘要： An input current channel device is described. This device comprises a first terminal for receiving a reference signal; a second terminal for receiving a first target signal; a pass through device coupled to the first terminal, the pass through device operative for transmitting a delayed reference signal in response to receiving the reference signal; a first combination logic device coupled to the first terminal and the second terminal, the first combination logic device operative for transmitting a first combination logic signal in response to receiving the reference signal and the first target signal; a selection device coupled for receiving the delayed reference signal, the first combination logic signal, and a first synchronization signal, the selection device operative for selectively transmitting a second synchronization signal, and wherein selectively transmitting the second synchronization signal reduces skew between the reference channel and the first target channel.
摘要翻译：描述输入电流通道器件。该装置包括用于接收参考信号的第一端子; 用于接收第一目标信号的第二终端; 耦合到所述第一终端的通过设备，所述通过设备响应于接收到所述参考信号而用于发送延迟的参考信号; 耦合到所述第一终端和所述第二终端的第一组合逻辑设备，所述第一组合逻辑设备用于响应于接收到所述参考信号和所述第一目标信号而发送第一组合逻辑信号; 耦合用于接收所述延迟参考信号的选择装置，所述第一组合逻辑信号和第一同步信号，所述选择装置用于选择性地发送第二同步信号，并且其中选择性地发送所述第二同步信号减少所述参考信道和第一个目标通道。

4. 发明申请

US20100315915A1 Input Signal Processing System 有权
标题翻译：输入信号处理系统
公开(公告)号：US20100315915A1
公开(公告)日：2010-12-16
申请号：US12606280
申请日：2009-10-27
申请人： Shengyuan Li , Indumini W. Ranmuthu
发明人： Shengyuan Li , Indumini W. Ranmuthu
IPC分类号： G11B7/00 , H03B1/00
CPC分类号： G11B7/126 , H01S5/0428 , H01S5/06825 , H03F3/45475 , H03F2200/168 , H03K5/01
摘要： An input signal processing system is described. It comprises a first transconductance device having a first input, second input, and an output, wherein the first input is coupled to receive the input signal; a first resistor coupled to a first input of the first transconductance device, wherein the first resistor converts the input current signal to an input voltage signal; a first voltage-current converter coupled to the output, the second input, the resistor, and a low voltage supply, wherein the first voltage-current converter is operative for converting the input voltage signal to a input current signal; and a low pass filter having an input coupled to the voltage converter for filtering noise from the input current signal.
摘要翻译：描述输入信号处理系统。它包括具有第一输入，第二输入和输出的第一跨导装置，其中第一输入被耦合以接收输入信号; 耦合到所述第一跨导装置的第一输入端的第一电阻器，其中所述第一电阻器将所述输入电流信号转换为输入电压信号; 耦合到所述输出端的第一电压 - 电流转换器，所述第二输入端，所述电阻器和低电压电源，其中所述第一电压 - 电流转换器用于将所述输入电压信号转换为输入电流信号; 以及低通滤波器，其具有耦合到电压转换器的输入端，用于滤除来自输入电流信号的噪声。

5. 发明授权

US08289832B2 Input signal processing system 有权
标题翻译：输入信号处理系统
公开(公告)号：US08289832B2
公开(公告)日：2012-10-16
申请号：US12606280
申请日：2009-10-27
申请人： Shengyuan Li , Indumini W. Ranmuthu
发明人： Shengyuan Li , Indumini W. Ranmuthu
IPC分类号： G11B7/00 , G11B7/12
CPC分类号： G11B7/126 , H01S5/0428 , H01S5/06825 , H03F3/45475 , H03F2200/168 , H03K5/01
摘要： An input signal processing system is described. It comprises a first transconductance device having a first input, second input, and an output, wherein the first input is coupled to receive the input signal; a first resistor coupled to a first input of the first transconductance device, wherein the first resistor converts the input current signal to an input voltage signal; a first voltage-current converter coupled to the output, the second input, the resistor, and a low voltage supply, wherein the first voltage-current converter is operative for converting the input voltage signal to a input current signal; and a low pass filter having an input coupled to the voltage converter for filtering noise from the input current signal.
摘要翻译：描述输入信号处理系统。它包括具有第一输入，第二输入和输出的第一跨导装置，其中第一输入被耦合以接收输入信号; 耦合到所述第一跨导装置的第一输入端的第一电阻器，其中所述第一电阻器将所述输入电流信号转换为输入电压信号; 耦合到所述输出端的第一电压 - 电流转换器，所述第二输入端，所述电阻器和低电压电源，其中所述第一电压 - 电流转换器用于将所述输入电压信号转换为输入电流信号; 以及低通滤波器，其具有耦合到电压转换器的输入端，用于滤除来自输入电流信号的噪声。

6. 发明申请

US20100315917A1 INPUT CURRENT CHANNEL DEVICE 有权
标题翻译：输入电流通道
公开(公告)号：US20100315917A1
公开(公告)日：2010-12-16
申请号：US12622559
申请日：2009-11-20
申请人： Shengyuan Li , Indumini W. Ranmuthu , Marius V. Dina
发明人： Shengyuan Li , Indumini W. Ranmuthu , Marius V. Dina
IPC分类号： G11B20/10
CPC分类号： G11B7/126 , G11B7/00456
摘要： An input current channel device is described. This device comprises a first terminal for receiving a reference signal; a second terminal for receiving a first target signal; a pass through device coupled to the first terminal, the pass through device operative for transmitting a delayed reference signal in response to receiving the reference signal; a first combination logic device coupled to the first terminal and the second terminal, the first combination logic device operative for transmitting a first combination logic signal in response to receiving the reference signal and the first target signal; a selection device coupled for receiving the delayed reference signal, the first combination logic signal, and a first synchronization signal, the selection device operative for selectively transmitting a second synchronization signal, and wherein selectively transmitting the second synchronization signal reduces skew between the reference channel and the first target channel.
摘要翻译：描述输入电流通道器件。该装置包括用于接收参考信号的第一端子; 用于接收第一目标信号的第二终端; 耦合到所述第一终端的通过设备，所述通过设备用于响应于接收到所述参考信号而发送延迟的参考信号; 耦合到所述第一终端和所述第二终端的第一组合逻辑设备，所述第一组合逻辑设备用于响应于接收到所述参考信号和所述第一目标信号而发送第一组合逻辑信号; 耦合用于接收所述延迟的参考信号的选择装置，所述第一组合逻辑信号和第一同步信号，所述选择装置用于选择性地发送第二同步信号，并且其中选择性地发送所述第二同步信号减少所述参考信道和第一个目标通道。

7. 发明申请

US20120300606A1 Current Driver Damping Circuit 有权
标题翻译：电流驱动器阻尼电路
公开(公告)号：US20120300606A1
公开(公告)日：2012-11-29
申请号：US13118242
申请日：2011-05-27
申请人： Shengyuan Li , Douglas Warren Dean , Indumini Ranmuthu
发明人： Shengyuan Li , Douglas Warren Dean , Indumini Ranmuthu
IPC分类号： G11B7/13 , H02H9/00 , G05F3/02
CPC分类号： H01S5/042
摘要： Various apparatuses, methods and systems for damping a current driver are disclosed herein. For example, some embodiments provide an apparatus for supplying current, including an output transistor connected between a voltage supply and a current output, and an active clamp connected between the current output and a current sink. The active clamp is adapted to connect the current output to the current sink when a voltage at the current output reaches a predetermined state relative to a voltage at a control input of the output transistor.
摘要翻译：本文公开了用于阻尼电流驱动器的各种装置，方法和系统。例如，一些实施例提供一种用于提供电流的装置，包括连接在电压源和电流输出端之间的输出晶体管和连接在电流输出端与电流源之间的有源钳位。当电流输出端的电压相对于输出晶体管的控制输入处的电压达到预定状态时，有源钳位电路适于将电流输出连接到电流吸收器。

8. 发明授权

US08841943B2 Current driver damping circuit 有权
标题翻译：电流驱动阻尼电路
公开(公告)号：US08841943B2
公开(公告)日：2014-09-23
申请号：US13118242
申请日：2011-05-27
申请人： Shengyuan Li , Douglas Warren Dean , Indumini Ranmuthu
发明人： Shengyuan Li , Douglas Warren Dean , Indumini Ranmuthu
IPC分类号： H03B1/00 , H01S5/042
CPC分类号： H01S5/042
摘要： Various apparatuses, methods and systems for damping a current driver are disclosed herein. For example, some embodiments provide an apparatus for supplying current, including an output transistor connected between a voltage supply and a current output, and an active clamp connected between the current output and a current sink. The active clamp is adapted to connect the current output to the current sink when a voltage at the current output reaches a predetermined state relative to a voltage at a control input of the output transistor.
摘要翻译：本文公开了用于阻尼电流驱动器的各种装置，方法和系统。例如，一些实施例提供一种用于提供电流的装置，包括连接在电压源和电流输出端之间的输出晶体管和连接在电流输出端与电流源之间的有源钳位。当电流输出端的电压相对于输出晶体管的控制输入处的电压达到预定状态时，有源钳位电路适于将电流输出连接到电流吸收器。

9. 发明申请

US20100315919A1 CURRENT GAIN CONTROL SYSTEM 有权
标题翻译：电流增益控制系统
公开(公告)号：US20100315919A1
公开(公告)日：2010-12-16
申请号：US12622586
申请日：2009-11-20
申请人： Akihiko Doi , Shengyuan Li
发明人： Akihiko Doi , Shengyuan Li
IPC分类号： G11B20/10
CPC分类号： G11B20/10009 , G11B20/10027 , G11B2020/10592 , G11B2220/2545 , G11B2220/2562
摘要： A current gain control system is described and comprises first and second gain blocks respectively associated with the first and second input channels, wherein first and second gain blocks transmit first and second gain signals in response to receiving first and second input signals; first and second converters adapted to be respectively coupled to the first and second gain blocks, the first and second converters operative for setting gains associated with the first and second input channel and for transmitting first and second converted signals in response to receiving the first and second gain signals; and first and second switches for selectively coupling the first and second converters to first and second channel drivers, respectively, wherein the first and second channel drivers transmit channel gain signals in response to receiving the first converted signal, and the channel gain signal allows control of the gain associated with the input channel.
摘要翻译：描述当前增益控制系统，并且包括分别与第一和第二输入通道相关联的第一和第二增益块，其中响应于接收第一和第二输入信号，第一和第二增益块传输第一和第二增益信号; 第一和第二转换器适于分别耦合到第一和第二增益块，第一和第二转换器用于设置与第一和第二输入通道相关联的增益，并且用于响应于接收第一和第二增益块而发送第一和第二转换信号增益信号; 以及分别用于将第一和第二转换器分别选择性地耦合到第一和第二通道驱动器的第一和第二开关，其中第一和第二通道驱动器响应于接收到第一转换信号而传输通道增益信号，并且通道增益信号允许控制与输入通道相关的增益。

10. 外观设计

USD698054S1 LED light source module 有权
标题翻译： LED光源模块
公开(公告)号：USD698054S1
公开(公告)日：2014-01-21
申请号：US29417197
申请日：2012-03-30
申请人： Lin He , Jian Li , Shengyuan Li
设计人： Lin He , Jian Li , Shengyuan Li

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