中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

71 records (took 0.023 seconds)

    POWER CONVERTER WITH THE FUNCTION OF DIGITAL ERROR CORRECTION
    44.
    发明申请
    POWER CONVERTER WITH THE FUNCTION OF DIGITAL ERROR CORRECTION 有权
    具有数字误差校正功能的电源转换器

    公开(公告)号：US20130335045A1

    公开(公告)日：2013-12-19

    申请号：US13637298

    申请日：2011-03-17

    Applicant: Bo Zhang ,  Shaowei Zhen ,  Ping Luo ,  Xiaohui Zhu ,  Jiangkun Li

    Inventor： Bo Zhang ,  Shaowei Zhen ,  Ping Luo ,  Xiaohui Zhu ,  Jiangkun Li

    IPC: H02M3/158

    CPC classification number: H02M3/158 ,  H02M3/157 ,  H02M3/1588 ,  H02M2001/0016 ,  H02M2001/0025 ,  Y02B70/1466

    Abstract: This invention relates to the output voltage regulator of step-down switching power converters. This invention provides regulator with digitally adjusted output voltage. It solves the problem of low regulation due to low error amplifier (EA) gain. This invention is a power converter with the function of Digitally Error Correction, consisting of Logic Control, EA, PWM comparator, Driver, power devices and passive components. It features Digital Calibration Circuit whose input terminal is connected to the output voltage and output terminal is connected to the error signal. When the output voltage exceeds the tolerance range, this Digital Calibration Circuit will increase or decrease the error signal step by step, keeping the output voltage in the tolerance range. The Digital Calibration Circuit of this invention can be applied not only in nanometer scale process, but also in traditional process. For those power converters in traditional process, it is also quite promising in applications.

    Abstract translation: 本发明涉及降压开关电源转换器的输出电压调节器。 本发明为调节器提供数字调节的输出电压。 它解决了由于低误差放大器（EA）增益引起的低调制问题。 本发明是具有数字误差校正功能的功率转换器，由逻辑控制，EA，PWM比较器，驱动器，功率器件和无源器件组成。 它具有数字校准电路，其输入端连接到输出电压，输出端连接到误差信号。 当输出电压超过公差范围时，该数字校准电路将逐步增加或减少误差信号，将输出电压保持在公差范围内。 本发明的数字校准电路不仅可以应用在纳米级工艺中，而且可以应用于传统工艺。 对于传统过程中的电源转换器，在应用中也是非常有希望的。

    TEMPERATURE ADAPTIVE BANDGAP REFERENCE CIRCUIT
    45.
    发明申请
    TEMPERATURE ADAPTIVE BANDGAP REFERENCE CIRCUIT 有权
    温度自适应带宽参考电路

    公开(公告)号：US20130314068A1

    公开(公告)日：2013-11-28

    申请号：US13637237

    申请日：2011-02-28

    Applicant: Shaowei Zhen ,  Ping Luo ,  Ruhui Yang ,  Kang Yang ,  Bo Zhang

    Inventor： Shaowei Zhen ,  Ping Luo ,  Ruhui Yang ,  Kang Yang ,  Bo Zhang

    IPC: G05F3/16

    CPC classification number: G05F3/16 ,  G05F3/30 ,  Y10S323/907

    Abstract: This invention involves a bandgap reference circuit in IC. The temperature coefficient of conventional bandgap reference is large and the higher order compensation is difficult to implement. This invention provides an adaptive compensated bandgap reference which solves the problem only using lower order (first order) temperature coefficient compensation. The invention adopts segmental compensation circuit to realize adaptive segmental compensation of bandgap reference with low temperature coefficient. The technical solution includes traditional bandgap voltage reference circuit and adaptive feedback compensation circuit which consists of sample and hold circuit, voltage comparator and control module. This invention controls the bandgap voltage reference through systematical view and it has high process compatibility. This invention can find the best temperature characteristic curve adaptively, the output voltage has low temperature coefficient, meeting the requirement of fabrication process, the implementation is simple with small area. This invention relates to integrated circuits.

    Abstract translation: 本发明涉及IC中的带隙基准电路。 常规带隙基准的温度系数大，难以实现较高阶补偿。 本发明提供了一种仅使用低阶（一阶）温度系数补偿来解决问题的自适应补偿带隙基准。 本发明采用分段补偿电路，实现低温系数带隙参考自适应分段补偿。 技术方案包括传统的带隙电压参考电路和自适应反馈补偿电路，由采样保持电路，电压比较器和控制模块组成。 本发明通过系统的方式控制带隙电压参考，并具有较高的工艺兼容性。 本发明可以自适应地找到最佳的温度特性曲线，输出电压温度系数低，满足制造工艺要求，实现面积小。 本发明涉及集成电路。

    Method and system for communication channel optimization in a multiple-input multiple-output (MIMO) communication system
    46.
    发明授权
    Method and system for communication channel optimization in a multiple-input multiple-output (MIMO) communication system 有权
    多输入多输出（MIMO）通信系统中通信信道优化的方法和系统

    公开(公告)号：US08374275B2

    公开(公告)日：2013-02-12

    申请号：US12514515

    申请日：2007-06-23

    Applicant: Qian Yu ,  Ping Luo ,  Masayuki Hoshino

    Inventor： Qian Yu ,  Ping Luo ,  Masayuki Hoshino

    IPC: H04B7/02 ,  H04B7/06 ,  H04L27/00

    CPC classification number: H04B7/0417 ,  H04B7/0452 ,  H04B7/0634 ,  H04B7/0639

    Abstract: A transmission method in a multiple-input multiple-output (MIMO) communication system, a transmitter in a MIMO communication system and a MIMO communication system are provided. The method comprises the steps of: receiving feedback data representing channel state information from respective receivers of the MIMO communication system; grouping the receivers into one or more groups based on the received feedback data; obtaining a precoding matrix for each group of receivers based on the received feedback data such that precoding vectors or sub-matrices in the precoding matrix associated with respective receivers of said each group of receivers are orthogonal to each other; and applying the precoding matrix to input signals for transmission to said each group of receivers.

    Abstract translation: 提供了多输入多输出（MIMO）通信系统中的传输方法，MIMO通信系统中的发射机和MIMO通信系统。 该方法包括以下步骤：从MIMO通信系统的各个接收机接收表示信道状态信息的反馈数据; 基于接收到的反馈数据将接收机分组成一个或多个组; 基于所接收的反馈数据获得每组接收机的预编码矩阵，使得与所述每组接收机的各接收机相关联的预编码矩阵中的预编码向量或子矩阵彼此正交; 以及将预编码矩阵应用于输入信号以传输到所述每组接收机。

    Re-transmission in a MIMO communication system
    47.
    发明授权
    Re-transmission in a MIMO communication system 有权
    MIMO通信系统中的重传

    公开(公告)号：US08126069B2

    公开(公告)日：2012-02-28

    申请号：US12306294

    申请日：2006-06-23

    Applicant: Ronghong Mo ,  Ping Luo ,  Poy Boon Tan ,  Katsuhiko Hiramatsu

    Inventor： Ronghong Mo ,  Ping Luo ,  Poy Boon Tan ,  Katsuhiko Hiramatsu

    IPC: H04K1/10

    CPC classification number: H04B7/0669 ,  H04L1/1867

    Abstract: A method for re-transmission in a multiple-input multiple-output (MIMO) communication system, the method comprising: performing spatial mapping of one or more retransmitted data streams and one or more newly transmitted data streams, wherein the spatial mapping comprises switching bits between the re-transmission data streams and the new transmission data streams.

    Abstract translation: 一种用于在多输入多输出（MIMO）通信系统中进行再传输的方法，所述方法包括：执行一个或多个重传的数据流和一个或多个新传输的数据流的空间映射，其中所述空间映射包括切换位 在重传数据流和新的传输数据流之间。

    METHOD AND SYSTEM FOR COMMUNICATION CHANNEL OPTIMIZATION IN A MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) COMMUNICATION SYSTEM
    49.
    发明申请
    METHOD AND SYSTEM FOR COMMUNICATION CHANNEL OPTIMIZATION IN A MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) COMMUNICATION SYSTEM 有权
    用于多输入多输出（MIMO）通信系统中的通信信道优化的方法和系统

    公开(公告)号：US20100142633A1

    公开(公告)日：2010-06-10

    申请号：US12514515

    申请日：2007-06-23

    Applicant: Qian Yu ,  Ping Luo ,  Masayuki Hoshino

    Inventor： Qian Yu ,  Ping Luo ,  Masayuki Hoshino

    IPC: H04L27/28

    CPC classification number: H04B7/0417 ,  H04B7/0452 ,  H04B7/0634 ,  H04B7/0639

    Abstract: A transmission method in a multiple-input multiple-output (MIMO) communication system, a transmitter in a MIMO communication system and a MIMO communication system are provided. The method comprises the steps of: receiving feedback data representing channel state information from respective receivers of the MIMO communication system; grouping the receivers into one or more groups based on the received feedback data; obtaining a precoding matrix for each group of receivers based on the received feedback data such that precoding vectors or sub-matrices in the precoding matrix associated with respective receivers of said each group of receivers are orthogonal to each other; and applying the precoding matrix to input signals for transmission to said each group of receivers.

    Abstract translation: 提供了多输入多输出（MIMO）通信系统中的传输方法，MIMO通信系统中的发射机和MIMO通信系统。 该方法包括以下步骤：从MIMO通信系统的各接收机接收表示信道状态信息的反馈数据; 基于接收到的反馈数据将接收机分组成一个或多个组; 基于所接收的反馈数据获得每组接收机的预编码矩阵，使得与所述每组接收机的各接收机相关联的预编码矩阵中的预编码向量或子矩阵彼此正交; 以及将预编码矩阵应用于输入信号以传输到所述每组接收机。

    Systems for providing dual resolution control of display panels
    50.
    发明授权
    Systems for providing dual resolution control of display panels 有权

    公开(公告)号：US07656381B2

    公开(公告)日：2010-02-02

    申请号：US11330006

    申请日：2006-01-11

    Applicant: Ping Luo

    Inventor： Ping Luo

    IPC: G09G3/36

    CPC classification number: G09G3/20 ,  G09G2310/0267 ,  G09G2310/0283 ,  G09G2340/0414

    Abstract: Systems for providing dual resolution control of display panels are provided. A representative system incorporates two pairs of shift registers, each of the shift registers outputting a shifting signal; two pairs of logic gates; and a switching network coupled among the shifting registers and the logic gates. In a low resolution mode, the switching network causes the shift registers to output shifting signals, with corresponding pulses of the shifting signals of the shift registers of the first pair temporally overlapping with corresponding pulses of the shifting signals of the shift registers of the second pair; and wherein, responsive to the shifting signals, the logic gates output panel control signals, with corresponding pulses of the panel control signals of the logic gates of the first pair not temporally overlapping with corresponding pulses of the panel control signals of the logic gates of the second pair.

Patent Agency Ranking