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公开(公告)号：US07535971B2
公开(公告)日：2009-05-19
申请号：US11164486
申请日：2005-11-24
申请人： Kuang-Yu Yen , Der-Zheng Liu , Shu-Hua Yang , Chih-Hung Tsai
发明人： Kuang-Yu Yen , Der-Zheng Liu , Shu-Hua Yang , Chih-Hung Tsai
CPC分类号： H04B7/0814 , H04L1/1607
摘要： A receiver includes a plurality of antennas; a switching device coupled to the antennas for selecting one of the antennas to receive transmitted signals; a demodulator coupled to the switching device for demodulating the transmitted signals to generate demodulated signals; and a control circuit coupled to the demodulator and the switching device, for counting a specific type of packets within the demodulated signals so as to accordingly control the switching device.
摘要翻译： 接收机包括多个天线; 耦合到所述天线的开关装置，用于选择所述天线之一以接收发射信号; 耦合到所述开关装置的解调器，用于解调所发送的信号以产生解调信号; 以及耦合到解调器和开关装置的控制电路，用于对解调信号内的特定类型的分组进行计数，从而相应地控制开关装置。
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22.发明授权Method and device for implementation of adaptive frequency hopping by power spectral density 有权通过功率谱密度实现自适应跳频的方法和装置公开(公告)号：US09136902B2
公开(公告)日：2015-09-15
申请号：US13095844
申请日：2011-04-27
申请人： Chung-Yao Chang , Der-Zheng Liu , Ming-Yuh Yeh , Kuang-Yu Yen
发明人： Chung-Yao Chang , Der-Zheng Liu , Ming-Yuh Yeh , Kuang-Yu Yen
IPC分类号： H04B1/00 , H04B1/7143
CPC分类号： H04B1/7143 , H04B2201/71346
摘要： A wireless communication device is disclosed. The wireless communication device includes a frequency hopping communication circuit, a power spectral density circuit and a control circuit. The frequency hopping communication circuit includes a channel map. The frequency hopping communication circuit selects one of channel in a channel map to connect to another frequency hopping communication circuit according to the channel map. The power spectral density circuit for generating a power spectral density signal by measuring spectrums on all channels connected to the frequency hopping communication circuit. The control circuit receives the power spectral density and output statistical distribution data to the frequency hopping communication circuit. The frequency hopping communication circuit updates the channel map according to the statistical distribution data.
摘要翻译： 公开了一种无线通信设备。 无线通信装置包括跳频通信电路，功率谱密度电路和控制电路。 跳频通信电路包括频道图。 跳频通信电路根据频道图选择频道图中的频道之一连接到另一跳频通信电路。 功率谱密度电路，用于通过连接到跳频通信电路的所有信道上的频谱测量来产生功率谱密度信号。 控制电路接收功率谱密度并输出到跳频通信电路的统计分布数据。 跳频通信电路根据统计分布数据更新频道图。
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公开(公告)号：US08995248B2
公开(公告)日：2015-03-31
申请号：US13372612
申请日：2012-02-14
申请人： Wei-Hsuan Chang , Chung-Yao Chang , Der-Zheng Liu , Kuang-Yu Yen
发明人： Wei-Hsuan Chang , Chung-Yao Chang , Der-Zheng Liu , Kuang-Yu Yen
CPC分类号： H04W52/286 , H04W52/362 , H04W52/48
摘要： A power adjusting apparatus communicating with a remote terminal is provided. The apparatus includes: a transceiving unit transmitting a plurality of test packets by a plurality of powers; a processing unit coupled to the transceiving unit, and deciding a transmission power for transmitting a subsequent packet according to at least one retransmission number of transmitting the test packets.
摘要翻译： 提供与远程终端通信的功率调节装置。 该装置包括：收发单元，通过多个功率发送多个测试分组; 耦合到所述收发单元的处理单元，以及根据发送所述测试分组的至少一个重传次数来决定用于发送后续分组的发送功率。
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24.发明授权Power saving apparatus and method of multiple-antenna receiver with variable rate 有权具有可变速率的多天线接收机的节电装置和方法公开(公告)号：US08792575B2
公开(公告)日：2014-07-29
申请号：US12555949
申请日：2009-09-09
申请人： Der-Zheng Liu , Jiun-Hung Yu , Kuang-Yu Yen
发明人： Der-Zheng Liu , Jiun-Hung Yu , Kuang-Yu Yen
CPC分类号： H04L1/06 , H04L1/0053
摘要： A multiple-antenna receiver can enable and disable receive radio frequency front-end and analog front-end circuits of specific antenna receiving routes according to a predetermined scheme during the receive data phase. The predetermined scheme calculates signal quality indices of the receiving route antennas according to a preamble sequence, and derives the modulation and coding scheme and the number of spatial streams via the information provided by a header sequence. Indications of the signal quality indices are compared with threshold values to determine which receiving routes are to be turned on and which receiving routes are to be turned off.
摘要翻译： 多天线接收机可以在接收数据阶段期间根据预定方案启用和禁用特定天线接收射频前端和模拟前端电路。 预定方案根据前导码序列计算接收路由天线的信号质量指标，并通过头序列提供的信息得出调制编码方案和空间流数。 将信号质量指标的指示与阈值进行比较，以确定要接通哪些接收路由，哪个接收路由将被关闭。
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公开(公告)号：US08665980B2
公开(公告)日：2014-03-04
申请号：US13251282
申请日：2011-10-02
申请人： Der-Zheng Liu , Yung-Ting Chen , Kuang-Yu Yen
发明人： Der-Zheng Liu , Yung-Ting Chen , Kuang-Yu Yen
IPC分类号： H04L1/02
CPC分类号： H04B7/0874
摘要： The present invention provides an antenna diversity apparatus and an antenna diversity method. The antenna diversity apparatus comprises: a plurality groups of antennas, a switching unit, a demodulating unit, an antenna switch selecting unit, and a control unit, wherein each group of the plurality groups of antennas comprises at least an antenna, and the control unit can comprises: a receiving signal quality detecting unit, a packet detecting unit, and an antenna decision unit. The antenna decision unit can be realized by hardware, firmware, or software, and the antenna switch selecting unit can be realized by hardware. The antenna diversity apparatus and the antenna diversity method provided by the present invention can switch antennas fast to avoid the defect of occurring burst error to reduce transmitting data rate, and switch to proper antennas fast when variation of the data transmission channels occurs.
摘要翻译： 本发明提供一种天线分集装置和天线分集方法。 天线分集装置包括：多组天线，切换单元，解调单元，天线切换选择单元和控制单元，其中，所述多组天线中的每组包括至少天线，并且所述控制单元 可以包括：接收信号质量检测单元，分组检测单元和天线判定单元。 天线决定单元可以通过硬件，固件或软件实现，并且天线切换选择单元可以通过硬件来实现。 本发明提供的天线分集装置和天线分集方法可以快速切换天线，以避免发生突发错误的缺陷，以降低发送数据速率，并且在发生数据传输信道的变化时快速切换到适当的天线。
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公开(公告)号：US20120213104A1
公开(公告)日：2012-08-23
申请号：US13372612
申请日：2012-02-14
申请人： Wei-Hsuan Chang , Chung-Yao Chang , Der-Zheng Liu , Kuang-Yu Yen
发明人： Wei-Hsuan Chang , Chung-Yao Chang , Der-Zheng Liu , Kuang-Yu Yen
IPC分类号： H04W52/04
CPC分类号： H04W52/286 , H04W52/362 , H04W52/48
摘要： A power adjusting apparatus communicating with a remote terminal is provided. The apparatus includes: a transceiving unit transmitting a plurality of test packets by a plurality of powers; a processing unit coupled to the transceiving unit, and deciding a transmission power for transmitting a subsequent packet according to at least one retransmission number of transmitting the test packets.
摘要翻译： 提供与远程终端通信的功率调节装置。 该装置包括：收发单元，通过多个功率发送多个测试分组; 耦合到所述收发单元的处理单元，以及根据发送所述测试分组的至少一个重传次数来决定用于发送后续分组的发送功率。
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27.发明申请公开(公告)号：US20120108301A1
公开(公告)日：2012-05-03
申请号：US13346821
申请日：2012-01-10
申请人： Der-Zheng Liu , Chung-Yao Chang , Kuang-Yu Yen
发明人： Der-Zheng Liu , Chung-Yao Chang , Kuang-Yu Yen
CPC分类号： H04W52/287 , H04B7/0413
摘要： A multiple-antenna transceiver in the present invention includes a frame controller and circuitry for transmitting and receiving. The transmitting component includes a sequence selection circuit, a MIMO modulation and coding circuit, and numerous TX RFE and AFE circuits. The receiving component includes a MIMO demodulation and decoding circuit, a sequence separation circuit, and numerous RX RFE and AFE circuits. The frame controller can enable and disable the TX and RX RFE and AFE circuits individually so as to reduce power consumption of the whole system.
摘要翻译： 本发明的多天线收发器包括帧控制器和用于发送和接收的电路。 发送组件包括序列选择电路，MIMO调制和编码电路以及许多TX RFE和AFE电路。 接收组件包括MIMO解调和解码电路，序列分离电路和许多RX RFE和AFE电路。 帧控制器可以单独启用和禁用TX和RX RFE和AFE电路，以降低整个系统的功耗。
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公开(公告)号：US20120087431A1
公开(公告)日：2012-04-12
申请号：US13251282
申请日：2011-10-02
申请人： Der-Zheng Liu , Yung-Ting Chen , Kuang-Yu Yen
发明人： Der-Zheng Liu , Yung-Ting Chen , Kuang-Yu Yen
IPC分类号： H04B7/02
CPC分类号： H04B7/0874
摘要： The present invention provides an antenna diversity apparatus and an antenna diversity method. The antenna diversity apparatus comprises: a plurality groups of antennas, a switching unit, a demodulating unit, an antenna switch selecting unit, and a control unit, wherein each group of the plurality groups of antennas comprises at least an antenna, and the control unit can comprises: a receiving signal quality detecting unit, a packet detecting unit, and an antenna decision unit. The antenna decision unit can be realized by hardware, firmware, or software, and the antenna switch selecting unit can be realized by hardware. The antenna diversity apparatus and the antenna diversity method provided by the present invention can switch antennas fast to avoid the defect of occurring burst error to reduce transmitting data rate, and switch to proper antennas fast when variation of the data transmission channels occurs.
摘要翻译： 本发明提供一种天线分集装置和天线分集方法。 天线分集装置包括：多组天线，切换单元，解调单元，天线切换选择单元和控制单元，其中，所述多组天线中的每组包括至少天线，并且所述控制单元 可以包括：接收信号质量检测单元，分组检测单元和天线判定单元。 天线决定单元可以通过硬件，固件或软件实现，并且天线切换选择单元可以通过硬件来实现。 本发明提供的天线分集装置和天线分集方法可以快速切换天线，以避免发生突发错误的缺陷，以降低发送数据速率，并且在发生数据传输信道的变化时快速切换到适当的天线。
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29.发明授权公开(公告)号：US07680197B2
公开(公告)日：2010-03-16
申请号：US10803047
申请日：2004-03-18
申请人： Der-Zheng Liu , Tai-Cheng Liu , Song-Nien Tung , Kuang-Yu Yen
发明人： Der-Zheng Liu , Tai-Cheng Liu , Song-Nien Tung , Kuang-Yu Yen
CPC分类号： H04L27/2662 , H04L27/2657 , H04L27/2675
摘要： The present invention provides an apparatus and an associated method for sampling timing compensation, which can estimate sampling frequency offset between the receiver and transmitter of a multi-carrier system according to estimated frequency responses of two consecutive received symbols within each pilot subchannel, and compensate an accumulated sampling timing offset resulted from the sampling frequency offset. When the accumulated timing offset is not large, the apparatus uses a phase rotator to compensate with a corresponding accumulated phase rotation in frequency domain. When the accumulated timing offset is large, the apparatus first compensates with a specific timing offset in time domain, and then uses the phase rotator to compensate with a phase rotation corresponding to the remaining timing offset in frequency domain. A timing controller is used to compensate with the specific timing offset by adjusting a clock generator or a cyclic prefix remover of the receiver.
摘要翻译： 本发明提供了一种用于采样定时补偿的装置和相关方法，其可以根据每个导频子信道内的两个连续接收符号的估计频率响应来估计多载波系统的接收机和发射机之间的采样频率偏移，并且对 采样频率偏移产生的累积采样定时偏移。 当累积的定时偏差不大时，该装置使用相位旋转器来对频域中相应的累积相位旋转进行补偿。 当累积的定时偏移量大时，装置首先用时域中的特定定时偏移补偿，然后使用相位旋转器对与频域中的剩余定时偏移相对应的相位旋转进行补偿。 定时控制器用于通过调整接收机的时钟发生器或循环前缀去除器来补偿特定的定时偏移。
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30.发明申请WIRELESS COMMUNICATION APPARATUS WITH BUILT-IN CHANNEL EMULATOR/NOISE GENERATOR 审中-公开无线通信设备与内置通道仿真器/噪声发生器公开(公告)号：US20080280566A1
公开(公告)日：2008-11-13
申请号：US12116219
申请日：2008-05-07
申请人： Kuang-Yu Yen , Jiun-Hung Yu , Der-Zheng Liu , Tsung-Chun Cheng , Yung-Ting Chen
发明人： Kuang-Yu Yen , Jiun-Hung Yu , Der-Zheng Liu , Tsung-Chun Cheng , Yung-Ting Chen
CPC分类号： H04B17/3911 , H04B17/0082 , H04B17/0085 , H04B17/0087 , H04B17/14 , H04L27/2601
摘要： The invention provides a wireless communication apparatus with performance simulation function. The wireless communication apparatus includes a channel emulator and at least one noise generator; therefore a real transmission environment can be simulated inside the wireless communication apparatus to thereby accelerate the testing process. Moreover, as this invention sets a random noise generator in front of the FFT, an approximate AWGN effect will be generated when the wireless communication apparatus is under test.
摘要翻译： 本发明提供一种具有性能仿真功能的无线通信装置。 无线通信装置包括信道仿真器和至少一个噪声发生器; 因此可以在无线通信装置内模拟实际的传输环境，从而加速测试过程。 此外，由于本发明在FFT之前设置随机噪声发生器，所以当无线通信装置被测试时将产生近似的AWGN效应。
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