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    • 61. 发明授权
    • Remote control code filtering used for relaying of remote control codes
    • 用于远程控制代码中继的遥控代码过滤
    • US07924167B2
    • 2011-04-12
    • US10874149
    • 2004-06-22
    • Piet Bernard HesdahlAmiram Levi
    • Piet Bernard HesdahlAmiram Levi
    • G08C19/00G05B19/02
    • G08C23/04
    • Remote control code filtering techniques are disclosed that are suitable for use in a remote control code relaying system. A portion of a received remote control code is compared with corresponding portions of stored remote control codes. The received remote control code can be filtered based on the comparison. The filtering can comprise outputting the received remote control code or a portion thereof, discarding the received remote control code, or adding a new remote control code to the stored remote control codes. The remote control code can be received from a network or from a hardware interface (e.g., which converts an electromagnetic remote control signal to the remote control code). The received remote control code can be output to a network or to a hardware interface for subsequent transmission of an electromagnetic remote control signal. Filtering can occur before or after the network.
    • 公开了适用于遥控代码中继系统的遥控代码过滤技术。 将接收到的遥控代码的一部分与存储的遥控代码的相应部分进行比较。 可以根据比较过滤接收到的遥控代码。 滤波可以包括输出接收到的遥控代码或其一部分,丢弃所接收的遥控代码,或者向存储的遥控代码添加新的遥控代码。 可以从网络或硬件接口(例如,将电磁遥控信号转换为遥控代码)来接收遥控代码。 所接收的远程控制代码可以被输出到网络或硬件接口,用于随后传输电磁遥控信号。 过滤可能发生在网络之前或之后。
    • 63. 发明授权
    • Method and apparatus for preamble training with shortened long training field in a multiple antenna communication system
    • 用于在多天线通信系统中具有缩短的长训练场的前同步训练的方法和装置
    • US07903755B2
    • 2011-03-08
    • US11815398
    • 2006-02-08
    • Syed A. Mujtaba
    • Syed A. Mujtaba
    • H04L27/00
    • H04B7/0684H04L27/261
    • Methods and apparatus are provided for communicating data in a multiple antenna communication system having N transmit antennas. According to one aspect of the invention, a header format includes a legacy preamble having at least one legacy long training field and an extended portion having at least N additional long training fields on each of the N transmit antennas, wherein one or more of the at least N additional long training fields are comprised of only one Orthogonal Frequency Division Multiplexing (OFDM) symbol. The extended portion optionally comprises one or more repeated OFDM symbols for frequency offset estimation. In one implementation, the extended portion comprises a first high throughput long training field comprised of two repeated OFDM symbols and N−1 high throughput long training fields comprised of only one OFDM symbol. In another variation, the extended portion comprises N high throughput long training fields comprised of only one OFDM symbol.
    • 提供了用于在具有N个发射天线的多天线通信系统中传送数据的方法和装置。 根据本发明的一个方面,报头格式包括具有至少一个传统长训练场的传统前导码和在N个发射天线中的每一个上具有至少N个附加的长训练场的扩展部分,其中一个或多个 最少N个附加的长训练场仅由一个正交频分复用(OFDM)符号组成。 扩展部分可选地包括用于频率偏移估计的一个或多个重复的OFDM符号。 在一个实现中,扩展部分包括由两个重复OFDM符号和仅包括一个OFDM符号的N-1个高吞吐量长训练字段组成的第一高吞吐量长训练场。 在另一变型中,扩展部分包括仅由一个OFDM符号组成的N个高吞吐量长的训练场。
    • 64. 发明申请
    • RECEIVER FOR ERROR-PROTECTED PACKET-BASED FRAME
    • 接收器,用于基于错误保护的分组框架
    • US20110055666A1
    • 2011-03-03
    • US12837556
    • 2010-07-16
    • Atul Kisanrao HedaooRayesh Kashinath Raikar
    • Atul Kisanrao HedaooRayesh Kashinath Raikar
    • H03M13/05G06F11/10
    • H03M13/05H03M13/13H04L1/0052H04L1/0057
    • In one embodiment, a receiver for a frame of media packets employing the real-time transmission protocol (RTP) and forward error correction (FEC) is disclosed. The receiver comprises a packet buffer and an FEC decoder. After a packet is received by the packet buffer, the FEC decoder reads the packet and, as part of FEC processing, performs an XOR operation on the packet, without waiting for the entire frame (or, indeed, for any subsequent packet of the frame) to be received. The XOR operation results are accumulated until sufficient packets are received to reconstruct a missing packet in the frame. Because the XOR operations are performed immediately after a packet is received, without any delay from waiting for subsequent packets, the receiver has a very low latency, and the packet buffer may be relatively small.
    • 在一个实施例中,公开了一种采用实时传输协议(RTP)和前向纠错(FEC)的媒体分组帧的接收机。 接收机包括分组缓冲器和FEC解码器。 在分组缓冲器接收到分组之后,FEC解码器读取分组,并且作为FEC处理的一部分,在分组上执行异或运算,而不等待整个帧(或实际上,对于帧的任何后续分组) )被接收。 积累XOR运算结果,直到接收到足够的数据包来重构帧中丢失的数据包。 由于在接收到分组之后立即执行XOR操作,所以接收机没有等待后续分组的任何延迟,所以接收机具有非常低的延迟,并且分组缓冲器可能相对较小。
    • 65. 发明授权
    • Auxiliary coding for home networking communication system
    • 家庭网络通信系统的辅助编码
    • US07898972B2
    • 2011-03-01
    • US10046749
    • 2002-01-17
    • Gang HuangZhenyu WangJinguo Yu
    • Gang HuangZhenyu WangJinguo Yu
    • H04L12/26
    • H04W99/00H04L12/2803H04W28/18H04W48/08
    • Advance training information is provided to a receiving Home network station via auxiliary coding, synchronized and/or included in the relevant Ethernet type packet. The advance training information may be, e.g., past equalizer, timing recovery circuit, AGC circuit, echo canceler values resulting from the reception of a previous frame. The training information may be, e.g., an early identity of the source of the packet, with a subsequent lookup performed by the receiving station for predetermined training value(s), or the training values themselves may be transmitted to the home network receiver via auxiliary coding. The auxiliary coding information may be transmitted before and/or during the frame training period of the relevant frame. This permits use of predetermined training values specific to the particular transmitter based on past frames received from that same transmitter during the training period for the received signal to be further refined from that determined from the auxiliary coding, resulting in more efficient and more accurate training of, e.g., a receiving equalizer, time recovery circuits, AGC, echo canceler, etc. Exemplary auxiliary coding techniques include, e.g., BPSK, FSK, QAM.
    • 通过辅助编码向接收家庭网络站提供预先训练信息,同步和/或包括在相关的以太网类型分组中。 预先训练信息可以是例如过去均衡器,定时恢复电路,AGC电路,由接收前一帧产生的回波消除器值。 培训信息可以是例如分组的源的早期身份,接收站对于预定训练值执行的后续查找,或者训练值本身可以经由辅助方式发送到家庭网络接收机 编码。 辅助编码信息可以在相关帧的帧训练周期之前和/或期间传送。 这允许在训练期间基于从相同发射机接收的过去帧来使用特定发射机的预定训练值,以便从辅助编码确定的接收信号进一步改进接收信号,导致更有效和更准确的训练 例如接收均衡器,时间恢复电路,AGC,回波消除器等。示例性辅助编码技术包括例如BPSK,FSK,QAM。
    • 67. 发明授权
    • Hot-electronic injection testing of transistors on a wafer
    • 晶圆上晶体管的热电子注入测试
    • US07898277B2
    • 2011-03-01
    • US12344016
    • 2008-12-24
    • Bonnie Weir
    • Bonnie Weir
    • G01R31/26
    • G01R31/2648
    • A hot-carrier injection (HCI) test that permits rapid screening of integrated circuit wafers susceptible to possible HCI-induced failures is disclosed. A method is described that determines transistor stress voltages that results in a transistor HCI-induced post-stress drain current differing from a pre-stress drain current within a desired range. These stress voltages are determined using a wafer with acceptable HCI susceptibility. Additional wafers to be tested are first tested using a described method that uses the determined transistor stress voltages to quickly screen the wafers for HCI susceptibility and, if HCI susceptibility is found, then additional conventional HCI testing may be applied to the susceptible wafers.
    • 公开了允许快速筛选容易受到HCI引起的故障的集成电路晶片的热载体注入(HCI)测试。 描述了一种确定晶体管应力电压的方法,其导致晶体管HCl诱导的后应力漏极电流与期望范围内的预应力漏极电流不同。 这些应力电压使用具有可接受的HCl敏感性的晶片来确定。 首先使用所描述的方法测试待测试的另外的晶片,其使用所确定的晶体管应力电压来快速筛选晶片以获得HCI敏感性,并且如果发现HCI易感性,则可以将附加的常规HCl测试应用于敏感晶片。
    • 70. 发明授权
    • Demodulator with configurable adaptive equalizer
    • 具有可配置自适应均衡器的解调器
    • US07881365B2
    • 2011-02-01
    • US11932320
    • 2007-10-31
    • Yhean-Sen LaiZhenyu WangJinguo Yu
    • Yhean-Sen LaiZhenyu WangJinguo Yu
    • H03H7/30
    • H03G3/3078H04L25/03057H04L27/183
    • An improved multi-channel receiver for satellite broadcast applications or the like. In an exemplary embodiment, the receiver has an adaptive equalizer configurable to operate with QPSK or 8PSK modulated signals. In the equalizer, a slicer table memory responsive to an 8-level quantizer (slicer) and a select signal is configured to map the output of the quantizer into QPSK or 8PSK symbol coordinates depending on whether the QPSK or the 8PSK signal is being received. The slicer table memory may be loaded with the symbol coordinates calculated from data in the 8PSK signal. A pattern matcher determines if the 8PSK or the QPSK signal is being received and asserts the select signal to configure the slicer table memory accordingly.
    • 用于卫星广播应用的改进的多频道接收机等。 在示例性实施例中,接收机具有可配置为利用QPSK或8PSK调制信号进行操作的自适应均衡器。 在均衡器中,响应于8电平量化器(限幅器)和选择信号的限幅器表存储器被配置为根据是否接收到QPSK或8PSK信号将量化器的输出映射成QPSK或8PSK符号坐标。 切片机存储器可以装载从8PSK信号中的数据计算的符号坐标。 模式匹配器确定是否正在接收8PSK或QPSK信号,并且断言选择信号以相应地配置限幅器表存储器。