Read/write circuit for accessing chalcogenide non-volatile memory cells
    191.
    发明申请
    Read/write circuit for accessing chalcogenide non-volatile memory cells 有权
    用于访问硫族化物非易失性存储单元的读/写电路

    公开(公告)号:US20050024922A1

    公开(公告)日:2005-02-03

    申请号:US10631174

    申请日:2003-07-31

    CPC classification number: G11C13/0004 G11C13/0038 G11C13/004

    Abstract: A read/write circuit for accessing chalcogenide non-volatile memory cells is disclosed. The read/write circuit includes a chalcogenide storage element, a voltage limiting circuit, a current-to-voltage converter, and a buffer circuit. The voltage limiting circuit, which is coupled to the chalcogenide storage element, ensures that voltages across the chalcogenide storage element will not exceed a predetermined value during a read operation. During a read operation, the current-to-voltage converter, which is coupled to the voltage limiting circuit, converts a current pulse read from the chalcogenide storage element to a voltage pulse. By sensing the voltage pulse from the current-to-voltage converter, the buffer circuit can determine a storage state of the chalcogenide storage element.

    Abstract translation: 公开了用于访问硫族化物非易失性存储器单元的读/写电路。 读/写电路包括硫族化物存储元件,电压限制电路,电流 - 电压转换器和缓冲电路。 耦合到硫族化物存储元件的电压限制电路确保在读取操作期间跨越硫族化物存储元件的电压不会超过预定值。 在读取操作期间,耦合到电压限制电路的电流 - 电压转换器将从硫族化物存储元件读取的电流脉冲转换为电压脉冲。 通过感测来自电流 - 电压转换器的电压脉冲,缓冲电路可以确定硫族化物存储元件的存储状态。

    Multi-stage receiver
    192.
    发明授权
    Multi-stage receiver 有权
    多级接收机

    公开(公告)号:US06775332B1

    公开(公告)日:2004-08-10

    申请号:US10435799

    申请日:2003-05-12

    Applicant: Bin Li Wen Tong

    Inventor: Bin Li Wen Tong

    Abstract: A multi-stage receiver and method for recovering a traffic signal embedded in at least one received signal. The multi-stage receiver includes a plurality of sequential detection stages for processing each received signal and providing successively better estimates of the traffic signal. The multi-stage receiver includes, for each received signal, a first processing stage and a second processing stage. The multi-stage receiver also includes a final processing stage connected to the second processing stages. Each first processing stage generates a first estimate of the traffic signal from the respective received signal and each second processing stage generates a set of energy values from the respective first estimate of the traffic signal and from the respective received signal. The final processing stage combines the set of energy values from each second processing stage and generates an improved estimate of the traffic signal. By employing multiple stages in the receiver, there is an improvement in successive estimates of the traffic signal.

    Abstract translation: 一种用于恢复嵌入到至少一个接收信号中的业务信号的多级接收机和方法。 多级接收机包括多个顺序检测级,用于处理每个接收到的信号并提供连续更好的业务信号估计。 对于每个接收信号,多级接收机包括第一处理级和第二处理级。 多级接收机还包括连接到第二处理级的最后处理级。 每个第一处理阶段从相应的接收信号产生交通信号的第一估计,并且每个第二处理阶段根据交通信号的相应的第一估计和相应的接收信号产生一组能量值。 最终处理阶段组合来自每个第二处理阶段的能量值集合,并且生成交通信号的改进的估计。 通过在接收机中采用多级,交通信号的连续估计有改善。

    Efficient implementations of proposed turbo code interleavers for third generation code division multiple access
    193.
    发明授权
    Efficient implementations of proposed turbo code interleavers for third generation code division multiple access 有权
    用于第三代码分多址的提出的turbo码交织器的有效实现

    公开(公告)号:US06625234B1

    公开(公告)日:2003-09-23

    申请号:US09359539

    申请日:1999-07-22

    Abstract: The invention relates to methods and apparatus for Turbo Code interleavers for use with third generation code division multiple access (3G CDMA) data. The apparatus includes a memory for receiving and temporarily storing the data, a counter and a clock coupled to the memory and counter for synchronization. The apparatus also includes a table containing a addresses that are selected by the counter. A puncturing device coupled to the table discards addresses if they are greater than a frame size. A buffer is coupled to the memory and the clock. The memory is configured to retrieve data from the selected addresses which are not discarded and forward it to the buffer for output.

    Abstract translation: 本发明涉及用于与第三代码分多址(3G CDMA)数据一起使用的Turbo码交织器的方法和装置。 该装置包括用于接收和临时存储数据的存储器,连接到存储器的计数器和时钟以及用于同步的计数器。 该装置还包括包含由计数器选择的地址的表。 耦合到表的打孔设备如果大于帧大小则丢弃地址。 缓冲器耦合到存储器和时钟。 存储器被配置为从未被丢弃的所选择的地址检索数据并将其转发到缓冲器以进行输出。

    Block detection receiver
    194.
    发明授权
    Block detection receiver 有权
    块检测接收机

    公开(公告)号:US06621850B1

    公开(公告)日:2003-09-16

    申请号:US09216972

    申请日:1998-12-21

    Applicant: Bin Li Wen Tong

    Inventor: Bin Li Wen Tong

    CPC classification number: H04B1/707

    Abstract: A method and apparatus for receiving orthogonal signals in a spread-spectrum communications system. A demodulator provides groups of de-spread samples of a processed received signal. The groups of de-spread samples are passed through an orthogonal code transformer to provide sequential transformer blocks. The blocks are buffered in sequences of 2 or 3. Then each buffered sequence is subjected to a summing, squaring and selection operation a to obtain a desired orthogonal code from each of the transformer blocks of the two or three transformer blocks.

    Abstract translation: 一种用于在扩频通信系统中接收正交信号的方法和装置。 解调器提供经处理的接收信号的解扩展样本组。 解扩样本组通过正交码变换器以提供顺序变换器块。 块以2或3的顺序缓冲。然后每个缓冲序列经过求和,平方和选择操作a以从两个或三个变换器块的每个变压器块获得期望的正交码。

    Multi-stage receiver
    195.
    发明授权
    Multi-stage receiver 有权
    多级接收机

    公开(公告)号:US06526103B1

    公开(公告)日:2003-02-25

    申请号:US09220014

    申请日:1998-12-23

    Applicant: Bin Li Wen Tong

    Inventor: Bin Li Wen Tong

    Abstract: A detector for detecting a traffic signal from a first demodulated signal is provided. The detector comprises a first stage for receiving the first demodulated signal and generating a first estimate of the traffic signal and a second stage connected to the first stage. The second stage receives the first demodulated signal and the first estimate of the traffic signal and generates a second estimate of the traffic signal from the first demodulated signal and the first estimate of the traffic signal. A method of detecting a traffic signal from a first demodulated signal is provided. The method comprises the steps of (a) generating an estimate of the traffic signal from the first demodulated signal using a first stage and (b) generating another estimate of the traffic signal from the first demodulated signal and the estimate of the traffic signal obtained from step (a) using a second stage.

    Abstract translation: 提供了一种用于从第一解调信号检测交通信号的检测器。 检测器包括用于接收第一解调信号并产生交通信号的第一估计的第一级和连接到第一级的第二级。 第二级接收第一解调信号和业务信号的第一估计,并且从第一解调信号和交通信号的第一估计产生交通信号的第二估计。 提供一种从第一解调信号检测交通信号的方法。 该方法包括以下步骤:(a)使用第一级从第一解调信号产生业务信号的估计,以及(b)从第一解调信号产生业务信号的估计和从 步骤(a)使用第二阶段。

    Correlation for synchronizing to long number sequences in communications systems
    196.
    发明授权
    Correlation for synchronizing to long number sequences in communications systems 有权
    通信系统中与长数字序列同步的相关性

    公开(公告)号:US06411610B1

    公开(公告)日:2002-06-25

    申请号:US09186484

    申请日:1998-11-05

    Applicant: Bin Li Wen Tong

    Inventor: Bin Li Wen Tong

    CPC classification number: H04B1/7077 G06F17/15 H04B1/70752 H04B1/708 H04B1/709

    Abstract: A correlation arrangement comprises 2k correlators each for correlating a sub-block of k symbols of a sequence derived from a received signal of a wireless communications system with all 2k possible sequences of k binary symbols to produce a respective one of 2k correlator outputs. For PN (pseudo random noise) synchronization, for each of N candidate PN sequences, a sub-block of k binary symbols of the respective candidate PN sequence is used to select a respective one of the 2k correlator outputs as a correlation output for the sub-block, and the selected sub-block correlation outputs are accumulated for m sub-blocks to produce a correlation result for a correlation block of mk symbols. A maximum one of the N correlation results is detected and the candidate PN sequence providing this maximum is identified for PN synchronization. N, k, and m are integers. The arrangement reduces computation for large values of N and large correlation blocks.

    Abstract translation: 相关装置包括2k个相关器,用于将从无线通信系统的接收信号导出的序列的k个符号的子块与k个二进制符号的所有2k个可能序列相关,以产生2k个相关器输出中的相应一个。 对于PN(伪随机噪声)同步,对于N个候选PN序列中的每一个,使用相应候选PN序列的k个二进制符号的子块来选择2k个相关器输出中的相应一个作为子载波的相关输出 块,并且对于m个子块累积所选择的子块相关输出,以产生用于mk个符号的相关块的相关结果。 检测到N个相关结果中的最大一个,并且为PN同步识别提供该最大值的候选PN序列。 N,k和m是整数。 该布置减少了大值N和大相关块的计算。

    Toy aeroplane
    197.
    外观设计

    公开(公告)号:USD970632S1

    公开(公告)日:2022-11-22

    申请号:US29792385

    申请日:2022-03-25

    Applicant: Bin Li

    Designer: Bin Li

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