Method for efficiently controlling read/write of flash memory
    21.
    发明申请
    Method for efficiently controlling read/write of flash memory 审中-公开
    有效控制闪存读写的方法

    公开(公告)号:US20050055532A1

    公开(公告)日:2005-03-10

    申请号:US10933266

    申请日:2004-09-03

    申请人: James Yu

    发明人: James Yu

    IPC分类号: G06F3/06 G06F12/02 G06F12/08

    摘要: A method for efficiently controlling read/write of a flash memory is proposed, wherein two address mapping tables and an empty block FIFO mechanism are built. A zone address mapping table matched with its empty block FIFO data is used for the logical address of the file allocation table (FAT). When a host end performs read/write to a flash memory, no matter to which zone the zone address mapping table corresponds, it is not necessary to rebuild the FAT address mapping table. Moreover, a cache address mapping table and its empty block FIFO data can be added. When the logical address is not in the zone address mapping table and the FAT address mapping table, a smaller cache address mapping table is first built to increase the system speed, let control of the flash memory be more efficient, and distribute the utility rate of each block.

    摘要翻译: 提出了一种有效控制闪速存储器的读/写的方法,其中构建了两个地址映射表和一个空块FIFO机制。 与其空块FIFO数据匹配的区域地址映射表用于文件分配表(FAT)的逻辑地址。 当主机端对闪存执行读/写操作时,无论区域地址映射表对应于哪个区域,都不需要重建FAT地址映射表。 此外,可以添加高速缓存地址映射表及其空块FIFO数据。 当逻辑地址不在区域地址映射表和FAT地址映射表中时,首先构建较小的缓存地址映射表,以提高系统速度,使闪存的控制更有效率,并分配 每个块。

    Low-Frequency Noise Interference Prevention in Power Over Ethernet Systems
    23.
    发明申请
    Low-Frequency Noise Interference Prevention in Power Over Ethernet Systems 审中-公开
    以太网供电中的低频噪声干扰预防

    公开(公告)号:US20130262884A1

    公开(公告)日:2013-10-03

    申请号:US13456810

    申请日:2012-04-26

    申请人: James Yu

    发明人: James Yu

    IPC分类号: G06F1/26 H04B3/00

    摘要: Low-frequency noise interference prevention in power over Ethernet (PoE) systems. A PoE device such as a power sourcing equipment (PSE) and/or a powered device (PD) is coupled to center taps of data transformers on multiple wire pairs used for high-data rate transmission via series high-impedance inductive devices.

    摘要翻译: 以太网供电(PoE)系统中的低频噪声干扰预防。 诸如电源设备(PSE)和/或供电设备(PD)的PoE设备被耦合到通过串联高阻抗感应设备用于高数据速率传输的多个线对上的数据变压器的中心抽头。

    DATA MANIPULATION OF POWER FAIL
    24.
    发明申请
    DATA MANIPULATION OF POWER FAIL 有权
    功率失效的数据处理

    公开(公告)号:US20120159239A1

    公开(公告)日:2012-06-21

    申请号:US13083394

    申请日:2011-04-08

    IPC分类号: G06F12/16 G06F11/14

    摘要: Disclosed is a power isolation and backup system. When a power fail condition is detected, temporary storage is flushed to an SDRAM. After the flush, interfaces are halted, and power is removed from most of the chip except the SDRAM subsystem. The SDRAM subsystem copies data from an SDRAM to a flash memory. On the way, the data may be encrypted, and/or a data integrity signature calculated. To restore data, the SDRAM subsystem copies data from the flash memory to the SDRAM. On the way, the data being restored may be decrypted, and/or a data integrity signature checked.

    摘要翻译: 公开了电力隔离和备用系统。 当检测到电源故障条件时,临时存储器被刷新到SDRAM。 在刷新之后,接口被停止,除了SDRAM子系统之外的大多数芯片的电源被去除。 SDRAM子系统将数据从SDRAM复制到闪存。 在路上,数据可以被加密,和/或计算数据完整性签名。 为了恢复数据,SDRAM子系统将数据从闪存复制到SDRAM。 一路上,正在恢复的数据可能被解密,和/或检查数据完整性签名。

    Systems and methods for managing orders made via a computer network
    25.
    发明授权
    Systems and methods for managing orders made via a computer network 有权
    用于管理通过计算机网络进行订单的系统和方法

    公开(公告)号:US08015068B2

    公开(公告)日:2011-09-06

    申请号:US12539219

    申请日:2009-08-11

    IPC分类号: G06Q30/00

    摘要: A system and method for allowing a user to schedule pickup of an ordered item provides a user interface having user interface elements for allowing a user to specify a frequency with which an order is it to be picked up, for informing a user as to availability of the item for pickup, and/or for allowing a user to request that an item be held in reserve for pickup within a given period of time, such as 24 hours. Frequency options provided to the user for selection when scheduling an order for pickup may include a one-time frequency, a daily frequency, a weekly frequency, a monthly frequency, and user specified dates. The information as to availability of the item for pickup is determined considering a time of order and real-time stocking information for the item.

    摘要翻译: 用于允许用户调度订购物品的拾取的系统和方法提供了具有用户界面元素的用户接口,用于允许用户指定要被拾取的订单的频率,以通知用户可用性 和/或允许用户在给定的时间段(例如24小时)内请求保留物品以备用于拾取的物品。 在调度拾取订单时向用户提供的频率选项可以包括一次频率,每日频率,每周频率,每月频率和用户指定的日期。 关于拾取项目的可用性的信息是根据订单的时间和项目的实时存货信息来确定的。

    System and method for measuring a cable resistance in a power over Ethernet application
    26.
    发明授权
    System and method for measuring a cable resistance in a power over Ethernet application 有权
    用于测量以太网供电中电缆电阻的系统和方法

    公开(公告)号:US07956616B2

    公开(公告)日:2011-06-07

    申请号:US12749489

    申请日:2010-03-29

    申请人: James Yu

    发明人: James Yu

    IPC分类号: G01R31/08

    CPC分类号: G01R27/04 H04L12/10

    摘要: A system and method for measuring a cable resistance in a power over Ethernet (PoE) application. A short circuit module in a powered device is designed to produce a short circuit effect upon receipt of a cable resistance detection voltage. The cable resistance detection voltage can be designed to be greater than a voltage for detection or classification and less than a voltage for powering of the powered device. The measurement of the current at a time when a short circuit effect is produced at the powered device enables a calculation of the actual resistance of the cable on a given PoE port.

    摘要翻译: 一种用于测量以太网供电(PoE)应用中的电缆电阻的系统和方法。 被动设备中的短路模块被设计成在接收到电缆电阻检测电压时产生短路效应。 电缆电阻检测电压可以被设计为大于用于检测或分类的电压,并且小于用于供电设备供电的电压。 电源设备产生短路效应时电流的测量可以计算给定PoE端口电缆的实际电阻。

    AC Disconnect of Power Over Ethernet Devices
    27.
    发明申请
    AC Disconnect of Power Over Ethernet Devices 审中-公开
    交流断开以太网供电设备

    公开(公告)号:US20110055598A1

    公开(公告)日:2011-03-03

    申请号:US12552858

    申请日:2009-09-02

    申请人: James Yu

    发明人: James Yu

    IPC分类号: G06F1/26

    CPC分类号: G06F1/26 G06F1/266 H04L12/10

    摘要: Embodiments of power sourcing equipment (PSE) utilizing AC disconnect are provided herein. In one embodiment, a PSE is provided that includes a DC supply configured to provide a DC voltage over a data communications medium, a controller configured to provide an AC disconnect signal over the data communications medium, and a parallel inductor-capacitor (LC) circuit coupled between the DC supply and the data communications medium. The parallel LC circuit is configured to isolate the DC supply from the AC disconnect signal. In another embodiment, a PSE is provided that includes a DC supply configured to provide a DC voltage at an output, an inductor coupled between the output of the DC supply and a data communications medium, and a capacitor coupled between the data communications medium and ground. The inductor and capacitor form a series LC circuit configured to generate an AC disconnect signal.

    摘要翻译: 本文提供了使用AC断开的电源设备(PSE)的实施例。 在一个实施例中,提供了一种PSE,其包括配置成通过数据通信介质提供DC电压的DC电源,被配置为在数据通信介质上提供AC断开信号的控制器,以及并联电感器 - 电容器(LC)电路 耦合在DC电源和数据通信介质之间。 并联LC电路被配置为将DC电源与AC断开信号隔离。 在另一个实施例中,提供了一种PSE,其包括被配置为在输出处提供DC电压的DC电源,耦合在DC电源的输出和数据通信介质之间的电感器以及耦合在数据通信介质和地之间的电容器 。 电感器和电容器形成串联LC电路,其被配置为产生AC断开信号。

    Capacitor Coupled Ethernet
    28.
    发明申请
    Capacitor Coupled Ethernet 有权
    电容耦合以太网

    公开(公告)号:US20100277293A1

    公开(公告)日:2010-11-04

    申请号:US12433080

    申请日:2009-04-30

    申请人: James Yu Minh Tran

    发明人: James Yu Minh Tran

    IPC分类号: G05B11/01

    CPC分类号: H04L12/10

    摘要: A system and method for enabling power applications over a single conductor pair. In one embodiment, data transformers are coupled to a single conductor pair using one or more direct current (DC) blocking elements that preserve an alternating current path. Power is injected onto the single conductor pair after the DC blocking elements and power is extracted from the single conductor pair before the DC blocking elements. Saturation of the data transformers by the injection of power onto the single pair is thereby prevented.

    摘要翻译: 一种用于在单个导体对上实现电力应用的系统和方法。 在一个实施例中,使用保持交流路径的一个或多个直流(DC)阻塞元件将数据变压器耦合到单个导体对。 在直流阻塞元件之后,在直流阻塞元件之前从单个导体对提取功率,在单个导体对上注入功率。 从而防止了通过将电力注入到单对上的数据变压器的饱和度。

    SYSTEM AND METHOD FOR MEASURING A CABLE RESISTANCE IN A POWER OVER ETHERNET APPLICATION
    29.
    发明申请
    SYSTEM AND METHOD FOR MEASURING A CABLE RESISTANCE IN A POWER OVER ETHERNET APPLICATION 有权
    用于测量以太网电源中的电缆电阻的系统和方法

    公开(公告)号:US20090058436A1

    公开(公告)日:2009-03-05

    申请号:US11849336

    申请日:2007-09-03

    申请人: James Yu

    发明人: James Yu

    IPC分类号: G01R27/02

    CPC分类号: G01R27/04 H04L12/10

    摘要: A system and method for measuring a cable resistance in a power over Ethernet (PoE) application. A short circuit module in a powered device is designed to produce a short circuit effect upon receipt of a cable resistance detection voltage. The cable resistance detection voltage can be designed to be greater than a voltage for detection or classification and less than a voltage for powering of the powered device. The measurement of the current at a time when a short circuit effect is produced at the powered device enables a calculation of the actual resistance of the cable on a given PoE port.

    摘要翻译: 一种用于测量以太网供电(PoE)应用中的电缆电阻的系统和方法。 被动设备中的短路模块被设计成在接收到电缆电阻检测电压时产生短路效应。 电缆电阻检测电压可以被设计为大于用于检测或分类的电压,并且小于用于供电设备供电的电压。 电源设备产生短路效应时电流的测量可以计算给定PoE端口电缆的实际电阻。