公开(公告)号：US20100267339A1

公开(公告)日：2010-10-21

申请号：US12568679

申请日：2009-09-29

申请人： Yuh-Chun Lin ,  Yi-Feng Su

发明人： Yuh-Chun Lin ,  Yi-Feng Su

IPC分类号： H04B15/00

CPC分类号： H04W76/16 ,  H04W88/06

摘要： A wireless transceiver device capable of preventing collision includes a first wireless module and a second wireless module. The first wireless module includes a first wireless transceiver unit for transmitting and receiving wireless signals of a first wireless communication system, and an indication signal generating unit for generating an indication signal indicating that the first wireless transceiver unit starts to transmit or receive a wireless signal at a first time point before the first wireless transceiver unit transmits or receives the wireless signal. The second wireless module includes a second wireless transceiver unit for transmitting and receiving wireless signals of a second wireless communication system, and a transmission control unit for controlling the second wireless transceiver unit to stop transmitting or receiving wireless signals from the first time point according to the indication signal.

摘要翻译： 能够防止冲突的无线收发器装置包括第一无线模块和第二无线模块。 第一无线模块包括用于发送和接收第一无线通信系统的无线信号的第一无线收发器单元和指示信号生成单元，用于生成指示第一无线收发器单元开始发送或接收无线信号的指示信号 在第一无线收发器单元发送或接收无线信号之前的第一时间点。 第二无线模块包括用于发送和接收第二无线通信系统的无线信号的第二无线收发器单元，以及用于控制第二无线收发器单元停止从第一时间点发送或接收无线信号的传输控制单元， 指示信号。

公开(公告)号：US07756222B2

公开(公告)日：2010-07-13

申请号：US11381625

申请日：2006-05-04

申请人： Jeng-Hong Chen ,  Yumin Lee ,  Yuh-Chun Lin

发明人： Jeng-Hong Chen ,  Yumin Lee ,  Yuh-Chun Lin

IPC分类号： H04L27/00

CPC分类号： H04L27/2647 ,  H04L25/067 ,  H04L27/0008

摘要： A quadrature frequency division multiplexing (“OFDM”) wireless receiver, including methods and devices for adaptive quantization of OFDM signals according to modulation and coding schemes and sub-carrier frequency responses, is provided. Efficient quantization may be utilized to reduce the large dynamic range of signals to achieve circuit simplification and chip area reduction. In one embodiment, a quantization circuit includes a quantization selector to select quantization thresholds according to modulation and coding schemes and sub-carrier frequency responses, and a non-uniform quantizer to reduce input dynamic range so that an output is represented by fewer bits than an input.

摘要翻译： 提供了一种正交频分复用（“OFDM”）无线接收机，包括用于根据调制和编码方案以及子载波频率响应的OFDM信号的自适应量化的方法和装置。 可以利用高效量化来减小信号的大动态范围，以实现电路简化和芯片面积减小。 在一个实施例中，量化电路包括量化选择器，以根据调制和编码方案和子载波频率响应来选择量化阈值，以及不均匀量化器，以减少输入动态范围，使得输出由比 输入。

公开(公告)号：US20090129355A1

公开(公告)日：2009-05-21

申请号：US12273052

申请日：2008-11-18

申请人： YUH-CHUN LIN

发明人： YUH-CHUN LIN

IPC分类号： H04W8/00

CPC分类号： G06F13/385 ,  G06F2213/3814 ,  H04L47/14 ,  H04L47/2416 ,  H04L47/28 ,  H04L49/90 ,  H04L49/9078

摘要： An apparatus for transmitting packets of a wireless local area network comprises a packet buffer area, a host controller and a timer. The packet buffer area is configured to temporarily store a plurality of packets. The host controller is configured to aggregate and control the plurality of packets in the packet buffer area. The timer is used to determine whether there are time-limited packets in the packet buffer area. While the host controller is aggregating the packets in the packet buffer area, an aggregation busy flag is enabled; and when the packet buffer area is outputting the time-limited packets, a timer busy flag is enabled.

摘要翻译： 用于发送无线局域网的分组的装置包括分组缓冲区，主机控制器和定时器。 分组缓冲区被配置为临时存储多个分组。 主机控制器被配置为聚合和控制分组缓冲区中的多个分组。 定时器用于确定分组缓冲区中是否存在时间有限的分组。 当主机控制器聚合分组缓冲区中的分组时，启用聚合忙标志; 并且当分组缓冲区正在输出时间有限的分组时，启用定时器忙标志。

公开(公告)号：US20070258531A1

公开(公告)日：2007-11-08

申请号：US11381625

申请日：2006-05-04

申请人： Jeng-Hong Chen ,  Yumin Lee ,  Yuh-Chun Lin

发明人： Jeng-Hong Chen ,  Yumin Lee ,  Yuh-Chun Lin

IPC分类号： H04L5/12 ,  H04L23/02

CPC分类号： H04L27/2647 ,  H04L25/067 ,  H04L27/0008

摘要： A quadrature frequency division multiplexing (“OFDM”) wireless receiver, including methods and devices for adaptive quantization of OFDM signals according to modulation and coding schemes and sub-carrier frequency responses, is provided. Efficient quantization may be utilized to reduce the large dynamic range of signals to achieve circuit simplification and chip area reduction. In one embodiment, a quantization circuit includes a quantization selector to select quantization thresholds according to modulation and coding schemes and sub-carrier frequency responses, and a non-uniform quantizer to reduce input dynamic range so that an output is represented by fewer bits than an input.

摘要翻译： 提供了一种正交频分复用（“OFDM”）无线接收机，包括用于根据调制和编码方案以及子载波频率响应的OFDM信号的自适应量化的方法和装置。 可以利用高效量化来减小信号的大动态范围，以实现电路简化和芯片面积减小。 在一个实施例中，量化电路包括量化选择器，以根据调制和编码方案和子载波频率响应来选择量化阈值，以及不均匀量化器，以减少输入动态范围，使得输出由比 输入。

公开(公告)号：US20060133548A1

公开(公告)日：2006-06-22

申请号：US11013360

申请日：2004-12-17

申请人： Joungheon Oh ,  Yuh-Chun Lin ,  Chia-En Wu

发明人： Joungheon Oh ,  Yuh-Chun Lin ,  Chia-En Wu

IPC分类号： H03D1/04

CPC分类号： H03D3/009

摘要： The present invention provides apparatus and method for calibrating I/Q imbalance in a direct conversion transmitter-receiver, including generating a complex sinusoidal signal with a center frequency at ωi, sending the sinusoidal signal to the receiver and using FFT to estimate the I/Q the phase φ, the gain imbalance ε, and phase imbalance θ. The input signal is calibrated according to the estimated I/Q amplitude and phase imbalance.

摘要翻译： 本发明提供了用于校准直接转换发射机 - 接收机中的I / Q不平衡的装置和方法，包括产生具有ωωi i的中心频率的复数正弦信号，将正弦信号发送到接收机， 使用FFT估计I / Q相位phi，增益不平衡ε和相位不平衡θ。 输入信号根据估计的I / Q振幅和相位不平衡进行校准。