公开(公告)号：US08049471B2

公开(公告)日：2011-11-01

申请号：US12857661

申请日：2010-08-17

申请人： Marian Niculae ,  Constantin Bucur ,  William L. Densham

发明人： Marian Niculae ,  Constantin Bucur ,  William L. Densham

IPC分类号： G05F1/10 ,  H02J3/12

CPC分类号： G06F1/263

摘要： A method includes coupling a variable output DC power source to power control circuitry, and detecting a type of the variable output DC power source in response to the coupling operation. In one embodiment, the detecting operation may include sending an interrogation signal from the power control circuitry to the variable output DC power source, and evaluating a response to the interrogation signal to determine the type of said variable output DC power source. Power control circuitry may include source type recognition circuitry configured to detect a type of a variable output DC power source in response to a coupling of the variable output DC power source to the power control circuitry.

摘要翻译： 一种方法包括将可变输出直流电源耦合到功率控制电路，以及响应于耦合操作检测可变输出直流电源的类型。 在一个实施例中，检测操作可以包括从功率控制电路向可变输出DC电源发送询问信号，以及评估对询问信号的响应以确定所述可变输出DC电源的类型。 功率控制电路可以包括源类型识别电路，其配置为响应于可变输出DC电源耦合到功率控制电路来检测可变输出DC电源的类型。

公开(公告)号：US07526349B2

公开(公告)日：2009-04-28

申请号：US09921171

申请日：2001-08-02

申请人： Reginia Chan ,  James Lam ,  William L. Densham ,  Sheau Chuen Her ,  Sterling Du

发明人： Reginia Chan ,  James Lam ,  William L. Densham ,  Sheau Chuen Her ,  Sterling Du

IPC分类号： G06F17/00

CPC分类号： G06F1/32 ,  G06F9/4406

摘要： A low-power digital audio decoding and playing system and method for computing devices provides a low-cost, low power-consumption, long-battery-life audio playing and decoding system, which may be used to play compressed audio files of various formats. In one aspect, a computer system adapted to play audio files comprises a system CPU, memory, at least one drive comprising compressed audio data, and an audio controller coupled to the system CPU, memory and drive. The audio controller is adapted to cause the drive to read the compressed audio data from the drive, to cause the system CPU to decompress the compressed audio data from the drive into decompressed audio data, to cause the decompressed audio to be stored in the memory, and to cause the decompressed audio data to be retrieved from the memory for playing.

公开(公告)号：US5132871A

公开(公告)日：1992-07-21

申请号：US405697

申请日：1989-09-11

申请人： William L. Densham ,  John W. Zolkos

发明人： William L. Densham ,  John W. Zolkos

IPC分类号： G06F1/16 ,  G06F1/18 ,  G06F3/06 ,  G11B33/02 ,  G11B33/12 ,  H01R31/00

CPC分类号： G11B33/122 ,  G06F1/1632 ,  G06F1/182 ,  G06F3/0601 ,  G11B33/025 ,  H01R31/00 ,  G06F2003/0692

摘要： A battery powered disk drive system for a portable computer comprises a disk drive unit, a cable, and a smart connector. The smart connector includes a disk drive controller integrated circuit, a printed circuit board, and an exterior plastic molding. The exterior plastic molding has an upper edge portion which butts against a display section of the portable computer when in use. Since the disk controller is physically located on the outside of a housing of the portable computer, the size of the portable computer is minimized. High frequency signals are converted to low frequency signals by the disk controller and, since the smart connector is located physically close to the computer, electromagnetic interference is minimized.

摘要翻译： 用于便携式计算机的电池供电的磁盘驱动器系统包括盘驱动单元，电缆和智能连接器。 智能连接器包括磁盘驱动器控制器集成电路，印刷电路板和外部塑料模制件。 外部塑料模制件在使用时具有与便携式计算机的显示部分相对的上边缘部分。 由于磁盘控制器物理地位于便携式计算机的壳体的外部，所以便携式计算机的尺寸被最小化。 高频信号由磁盘控制器转换为低频信号，并且由于智能连接器物理上靠近计算机，电磁干扰被最小化。

公开(公告)号：US08587264B2

公开(公告)日：2013-11-19

申请号：US13285684

申请日：2011-10-31

申请人： Marian Niculae ,  Constantin Bucur ,  William L. Densham

发明人： Marian Niculae ,  Constantin Bucur ,  William L. Densham

IPC分类号： G05F1/10 ,  H02J3/12

CPC分类号： G06F1/263

摘要： A method includes coupling a variable output DC power source to power control circuitry, and detecting a type of the variable output DC power source in response to the coupling operation. In one embodiment, the detecting operation may include sending an interrogation signal from the power control circuitry to the variable output DC power source, and evaluating a response to the interrogation signal to determine the type of said variable output DC power source. Power control circuitry may include source type recognition circuitry configured to detect a type of a variable output DC power source in response to a coupling of the variable output DC power source to the power control circuitry.

摘要翻译： 一种方法包括将可变输出直流电源耦合到功率控制电路，以及响应于耦合操作检测可变输出直流电源的类型。 在一个实施例中，检测操作可以包括从功率控制电路向可变输出DC电源发送询问信号，以及评估对询问信号的响应以确定所述可变输出DC电源的类型。 功率控制电路可以包括源类型识别电路，其配置为响应于可变输出DC电源耦合到功率控制电路来检测可变输出DC电源的类型。

公开(公告)号：US06741066B1

公开(公告)日：2004-05-25

申请号：US09960453

申请日：2001-09-21

申请人： William L. Densham ,  Vlad Mihail Popescu-Stanesti ,  Constantin Spiridon

发明人： William L. Densham ,  Vlad Mihail Popescu-Stanesti ,  Constantin Spiridon

IPC分类号： H02J704

CPC分类号： H02J7/042 ,  H02J5/00 ,  H02J7/0068 ,  H02J7/02

摘要： A power management topology for portable electronic devices that includes a feed-enabled AC/DC adapter that receives feedback data from a charge controller associated with the portable device. The feedback data can include battery charging current, battery voltage, or power requirements of the portable device. Using the feedback data, the external AC/DC adapter can adjust the DC output to meet the charging requirement of the battery and/or the power requirements of the portable device.

摘要翻译： 一种用于便携式电子设备的电源管理拓扑，其包括从与便携式设备相关联的充电控制器接收反馈数据的馈电AC / DC适配器。 反馈数据可以包括便携式设备的电池充电电流，电池电压或功率要求。 使用反馈数据，外部AC / DC适配器可以调整直流输出，以满足电池的充电要求和/或便携式设备的电源要求。

公开(公告)号：US07088076B2

公开(公告)日：2006-08-08

申请号：US10685043

申请日：2003-10-14

申请人： William L. Densham ,  Vlad Mihail Popescu-Stanesti ,  Constantin Spiridon

发明人： William L. Densham ,  Vlad Mihail Popescu-Stanesti ,  Constantin Spiridon

IPC分类号： H02J7/04

CPC分类号： H02J7/042 ,  H02J5/00 ,  H02J7/0068 ,  H02J7/02

摘要： A power management topology for portable electronic devices that includes a feed-enabled AC/DC adapter that receives feedback data from a charge controller associated with the portable device. The feedback data can include battery charging current, battery voltage, or power requirements of the portable device. Using the feedback data, the external AC/DC adapter can adjust the DC output to meet the charging requirement of the battery and/or the power requirements of the portable device.

摘要翻译： 一种用于便携式电子设备的电源管理拓扑，其包括从与便携式设备相关联的充电控制器接收反馈数据的馈电AC / DC适配器。 反馈数据可以包括便携式设备的电池充电电流，电池电压或功率要求。 使用反馈数据，外部AC / DC适配器可以调整直流输出，以满足电池的充电要求和/或便携式设备的电源要求。

公开(公告)号：US06507173B1

公开(公告)日：2003-01-14

申请号：US09951991

申请日：2001-09-13

申请人： Constantin Spiridon ,  Vlad Mihail Popescu-Stanesti ,  You-Yuh Shyr ,  Alexandru Hartular ,  William L. Densham, III

发明人： Constantin Spiridon ,  Vlad Mihail Popescu-Stanesti ,  You-Yuh Shyr ,  Alexandru Hartular ,  William L. Densham, III

IPC分类号： H02J704

CPC分类号： H02J7/027 ,  H02J7/0068 ,  H02J7/0077

摘要： A power management unit (PMU) apparatus and method may include: a bi-directional pin configured to serve as an input pin during a first condition and as an output pin during a second condition; or a battery charge controller for providing a first conditioning charge and a second full charge to a voltage source of the PMU; or an adapter detector configured to detect the presence of a continuous output adapter and a pulse output adapter; an under voltage lockout protection circuit to prevent start up of the PMU until a power source reaches a predetermined threshold lockout level and to shut down the PMU once the power source reaches a lower threshold lockout disabling level; or a plurality of internal switches for allowing an external switch to have multiple functions; or a power on reset circuit; or multi-output charge status pin.

摘要翻译： 功率管理单元（PMU）装置和方法可以包括：双向引脚，其被配置为在第一状态期间用作输入引脚，并且在第二状态期间用作输出引脚; 或用于向PMU的电压源提供第一调节电荷和第二满电荷的电池充电控制器; 或配置成检测连续输出适配器和脉冲输出适配器的存在的适配器检测器; 一个欠电压锁定保护电路，用于在电源达到预定阈值锁定电平之前防止PMU启动，一旦电源达到较低的阈值锁定禁止电平，则关闭PMU; 或多个内部开关，用于允许外部开关具有多个功能; 或上电复位电路; 或多输出充电状态引脚。