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

IPC分类号： H04B7/02 ,  H04L1/02

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。

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

IPC分类号： H04B17/00 ,  H04L27/28

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。

公开(公告)号：US20080176509A1

公开(公告)日：2008-07-24

申请号：US12017351

申请日：2008-01-22

申请人： Kuang-Yu Yen ,  Jiun-Hung Yu ,  Der-Zheng Liu ,  Chung-Yao Chang

发明人： Kuang-Yu Yen ,  Jiun-Hung Yu ,  Der-Zheng Liu ,  Chung-Yao Chang

IPC分类号： H04H20/71

CPC分类号： H04H60/11 ,  H04H20/42 ,  H04H20/61

摘要： A wireless transmission method for broadcasting packets to a plurality of receiving devices includes: broadcasting a plurality of packets to the receiving devices, receiving signals transmitted from the receiving devices, generating a plurality of estimation results according to the signals transmitted from the receiving devices where each of the estimation results corresponds to a receiving quality while each of the receiving devices receives the packets, determining whether each of the receiving devices is suitable for receiving the packets according to each of the estimation results and a recipient condition and storing information of at least one of the receiving devices suitable for receiving the packets, and determining whether the at least one of the receiving devices needs to receive a broadcasted packet again according to the information and signals transmitted from the at least one of the receiving devices suitable for receiving the packets.

摘要翻译： 一种用于向多个接收设备广播分组的无线传输方法包括：向接收设备广播多个分组，接收从接收设备发送的信号，根据从接收设备发送的信号生成多个估计结果，其中每个接收设备 的估计结果对应于接收质量，而每个接收设备接收分组，根据估计结果和接收者条件确定每个接收设备是否适于接收分组，并且存储至少一个 以及确定所述接收设备中的至少一个是否需要根据从适于接收分组的接收设备中的至少一个发送的信息和信号再次接收广播分组。

公开(公告)号：US09136963B2

公开(公告)日：2015-09-15

申请号：US12017351

申请日：2008-01-22

申请人： Kuang-Yu Yen ,  Jiun-Hung Yu ,  Der-Zheng Liu ,  Chung-Yao Chang

发明人： Kuang-Yu Yen ,  Jiun-Hung Yu ,  Der-Zheng Liu ,  Chung-Yao Chang

IPC分类号： H04H20/71 ,  H04H60/11 ,  H04H20/42 ,  H04H20/61

CPC分类号： H04H60/11 ,  H04H20/42 ,  H04H20/61

摘要： A wireless transmission method for broadcasting packets to a plurality of receiving devices includes: broadcasting a plurality of packets to the receiving devices, receiving signals transmitted from the receiving devices, generating a plurality of estimation results according to the signals transmitted from the receiving devices where each of the estimation results corresponds to a receiving quality while each of the receiving devices receives the packets, determining whether each of the receiving devices is suitable for receiving the packets according to each of the estimation results and a recipient condition and storing information of at least one of the receiving devices suitable for receiving the packets, and determining whether the at least one of the receiving devices needs to receive a broadcasted packet again according to the information and signals transmitted from the at least one of the receiving devices suitable for receiving the packets.

摘要翻译： 一种用于向多个接收设备广播分组的无线传输方法包括：向接收设备广播多个分组，接收从接收设备发送的信号，根据从接收设备发送的信号生成多个估计结果，其中每个接收设备 的估计结果对应于接收质量，而每个接收设备接收分组，根据估计结果和接收者条件确定每个接收设备是否适于接收分组，并且存储至少一个 以及确定所述接收设备中的至少一个是否需要根据从适于接收分组的接收设备中的至少一个发送的信息和信号再次接收广播分组。

公开(公告)号：US20100061489A1

公开(公告)日：2010-03-11

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

IPC分类号： H04L27/06 ,  H04B1/06

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 by means of 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。 预定方案通过前置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。

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。