公开(公告)号：US20070127607A1

公开(公告)日：2007-06-07

申请号：US11465452

申请日：2006-08-18

申请人： Kuo-Ming Wu ,  Der-Zheng Liu ,  Kuang-Yu Yen

发明人： Kuo-Ming Wu ,  Der-Zheng Liu ,  Kuang-Yu Yen

IPC分类号： H04L27/06

CPC分类号： H04L27/2662 ,  H04B1/7183 ,  H04L27/2675

摘要： The present invention relates to a symbol acquisition apparatus and a method thereof. The method includes: determining a first boundary according to a first preamble symbol and generating a first confidence value according to signal quality of the first preamble symbol; determining a second boundary according to a second preamble symbol and generating a second confidence value according to signal quality of the second preamble symbol; and determining a symbol boundary from the first and the second boundaries according to the first and the second confidence values.

摘要翻译： 符号获取装置及其方法技术领域本发明涉及符号获取装置及其方法。 该方法包括：根据第一前导码符号确定第一边界，并根据第一前导符号的信号质量产生第一置信度值; 根据第二前导码符号确定第二边界，并根据第二前导符号的信号质量产生第二置信度值; 以及根据第一和第二置信度从第一边界和第二边界确定符号边界。

公开(公告)号：US07983324B2

公开(公告)日：2011-07-19

申请号：US11465452

申请日：2006-08-18

申请人： Kuo-Ming Wu ,  Der-Zheng Liu ,  Kuang-Yu Yen

发明人： Kuo-Ming Wu ,  Der-Zheng Liu ,  Kuang-Yu Yen

IPC分类号： H04B1/00

CPC分类号： H04L27/2662 ,  H04B1/7183 ,  H04L27/2675

摘要： The present invention relates to a symbol acquisition apparatus and a method thereof. The method includes: determining a first boundary according to a first preamble symbol and generating a first confidence value according to signal quality of the first preamble symbol; determining a second boundary according to a second preamble symbol and generating a second confidence value according to signal quality of the second preamble symbol; and determining a symbol boundary from the first and the second boundaries according to the first and the second confidence values.

摘要翻译： 符号获取装置及其方法技术领域本发明涉及符号获取装置及其方法。 该方法包括：根据第一前导码符号确定第一边界，并根据第一前导符号的信号质量产生第一置信度值; 根据第二前导码符号确定第二边界，并根据第二前导符号的信号质量产生第二置信度值; 以及根据第一和第二置信度从第一边界和第二边界确定符号边界。

公开(公告)号：US20050157812A1

公开(公告)日：2005-07-21

申请号：US10905757

申请日：2005-01-19

申请人： Der-Zheng Liu ,  Kuang-Yu Yen ,  Kuo-Ming Wu

发明人： Der-Zheng Liu ,  Kuang-Yu Yen ,  Kuo-Ming Wu

IPC分类号： H04K1/02 ,  H04L27/26

CPC分类号： H04L27/2623

摘要： An apparatus for reducing a peak-to-average-power ratio includes a clipping signal detector coupled to the original time domain signal for generating an ideal clipping signal according to the original time domain signal, a clipping signal reconstruction unit coupled to the clipping signal detector for generating an actual clipping signal according to the ideal clipping signal, and a signal clipper coupled to the original time domain signal and the clipping signal reconstruction unit for generating a clipped time domain signal.

摘要翻译： 用于降低峰均功率比的装置包括：耦合到原始时域信号的限幅信号检测器，用于根据原始时域信号产生理想的限幅信号;剪切信号重建单元，耦合到限幅信号检测器 用于根据理想的削波信号产生实际的削波信号，以及耦合到原始时域信号的信号限幅器和用于产生限幅时域信号的限幅信号重构单元。

公开(公告)号：US08284736B2

公开(公告)日：2012-10-09

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

IPC分类号： H04W4/00

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。

公开(公告)号：US20120076173A1

公开(公告)日：2012-03-29

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： H04B1/713

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。

公开(公告)号：US07391828B2

公开(公告)日：2008-06-24

申请号：US10885186

申请日：2004-07-06

申请人： Der-Zheng Liu ,  Song-Nien Tang ,  Tai-Cheng Liu ,  Kuang-Yu Yen

发明人： Der-Zheng Liu ,  Song-Nien Tang ,  Tai-Cheng Liu ,  Kuang-Yu Yen

IPC分类号： H04L27/06

CPC分类号： H04L27/2662 ,  H04L27/2605 ,  H04L27/2675 ,  H04L27/2678

摘要： A symbol boundary detection device and a method thereof for use in a receiver of a multi-channel communication system. The device utilizes a threshold to make an auxiliary judgement so as to select a proper symbol boundary reference point within an early range. The threshold may be flexibly set in response to different characteristics of the systems. In addition, a pilot symbol guard interval matched filter is further utilized to determine whether a pilot symbol guard interval is received.

摘要翻译： 一种在多声道通信系统的接收机中使用的符号边界检测装置及其方法。 设备利用阈值进行辅助判断，以便在早期范围内选择适当的符号边界参考点。 可以响应于系统的不同特性灵活地设置阈值。 此外，进一步利用导频符号保护间隔匹配滤波器来确定是否接收到导频符号保护间隔。

公开(公告)号：US20060203945A1

公开(公告)日：2006-09-14

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

IPC分类号： H04L1/02

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。

公开(公告)号：US08463214B2

公开(公告)日：2013-06-11

申请号：US13275321

申请日：2011-10-18

申请人： Kuang-Yu Yen ,  Der-Zheng Liu

发明人： Kuang-Yu Yen ,  Der-Zheng Liu

IPC分类号： H04B7/08 ,  H04K3/00

CPC分类号： H04B7/0874

摘要： An antenna diversity system having a non-interrupt function is provided. The antenna diversity system includes: a plurality of antennas, a plurality of radio frequency (RF) circuits, and a signal processing unit. The RF circuits are respectively coupled to the antennas, wherein each RF circuit is utilized for operating in one of a plurality of channels. The signal processing unit is coupled to the RF circuits, and utilized for determining whether a signal quality value of at least one of the antennas lower than a threshold to generate a determining result, and determining whether to change the channel of at least one of the RF circuits according to the determining result, so as to make at least two of the RF circuits operating in a same channel of the channels.

摘要翻译： 提供具有非中断功能的天线分集系统。 天线分集系统包括：多个天线，多个射频（RF）电路和信号处理单元。 RF电路分别耦合到天线，其中每个RF电路用于在多个信道之一中操作。 所述信号处理单元耦合到所述RF电路，并且用于确定所述天线中的至少一个的信号质量值是否低于阈值以产生确定结果，以及确定是否改变所述信号处理单元中的至少一个的信道 RF电路根据确定结果，以使至少两个RF电路在通道的相同通道中工作。

公开(公告)号：US20110013561A1

公开(公告)日：2011-01-20

申请号：US12836486

申请日：2010-07-14

申请人： Der-Zheng Liu ,  Kuang-Yu Yen ,  Jia-Ching Shen

发明人： Der-Zheng Liu ,  Kuang-Yu Yen ,  Jia-Ching Shen

IPC分类号： H04W4/00

CPC分类号： H04W52/286 ,  H04W52/48 ,  H04W52/50

摘要： The present invention provides a method for adjusting transmission power of a communication system having a first terminal and a second terminal. In accordance with a preferred embodiment, the method comprises steps of: (a) repeatedly transmitting a detecting packet from the first terminal to the second terminal by sequentially using one of a variety of transmission powers; (b) receiving a responding packet from the second terminal, wherein the responding packet corresponds to the one of the variety of transmission powers; and (c) choosing at least one from the variety of the transmission powers for transmitting at least a data packet to the second terminal therewith based on the responding packet from the second terminal.

摘要翻译： 本发明提供一种用于调整具有第一终端和第二终端的通信系统的发送功率的方法。 根据优选实施例，该方法包括以下步骤：（a）通过依次使用各种发送功率之一，将检测分组从第一终端重复发送到第二终端; （b）从所述第二终端接收响应分组，其中所述响应分组对应于所述多种传输功率中的一种; 以及（c）基于来自第二终端的响应分组从至少一个发送功率中选择至少一个，用于至少将数据分组发送到其第二终端。

公开(公告)号：US20100080204A1

公开(公告)日：2010-04-01

申请号：US12568684

申请日：2009-09-29

申请人： Kuang-Yu Yen ,  Der-Zheng Liu ,  Ka-Un Chan

发明人： Kuang-Yu Yen ,  Der-Zheng Liu ,  Ka-Un Chan

IPC分类号： H04W4/00

CPC分类号： H04B7/04

摘要： A WLAN transceiving system, which comprises: a plurality of antennas; a plurality of receiving circuits, wherein each one of receiving circuits is coupled to one of the antenna to receive a input signal from the antennas; and a plurality of transmitting circuits, for outputting one of an output signal and an amplified output signal, wherein at least one of the transmitting circuit includes a power amplifier and utilizes at least one of the power amplifier to amplify an output signal to generate the amplified output signal, where a number of the power amplifiers is less than a number of the antennas.

摘要翻译： 一种WLAN收发系统，包括：多个天线; 多个接收电路，其中每个接收电路耦合到所述天线之一以从所述天线接收输入信号; 以及多个发送电路，用于输出输出信号和放大的输出信号之一，其中所述发送电路中的至少一个包括功率放大器，并利用所述功率放大器中的至少一个来放大输出信号以产生所述放大的 输出信号，其中多个功率放大器小于多个天线。