公开(公告)号：US08737939B1

公开(公告)日：2014-05-27

申请号：US13250701

申请日：2011-09-30

申请人： Kevin Hsiao-Cheng Tang ,  Atul Salhotra

发明人： Kevin Hsiao-Cheng Tang ,  Atul Salhotra

IPC分类号： H04B1/04

CPC分类号： H04B1/0466

摘要： A measurement signal, the measurement signal indicative of a bias in a signal received via a communication channel, is generated. A detection signal, the detection signal indicative of presence of an unmodulated radio frequency (RF) carrier prior to a communication frame in the signal received via the communication channel, is generated using the measurement signal.

摘要翻译： 产生测量信号，表示通过通信信道接收的信号中的偏置的测量信号。 在通过通信信道接收的信号中的通信帧之前，产生检测信号，该信号表示存在未调制射频（RF）载波的检测信号。

公开(公告)号：US08565255B1

公开(公告)日：2013-10-22

申请号：US13013142

申请日：2011-01-25

申请人： Kevin Hsiao-Cheng Tang ,  Yungping Hsu ,  Guorong Hu ,  Weishi Feng

发明人： Kevin Hsiao-Cheng Tang ,  Yungping Hsu ,  Guorong Hu ,  Weishi Feng

IPC分类号： H04W84/12 ,  H04W28/04 ,  H04L12/44

CPC分类号： H04B17/00 ,  H04B1/707 ,  H04W24/00 ,  H04W74/08

摘要： A transceiver including: an antenna configured to a receive a first signal transmitted on a radio frequency channel; and a peak-to-sidelobe ratio determination unit configured to generate a second signal based on a ratio, in which the ratio is based on a peak value and a sidelobe value, and the peak value and the sidelobe value are determined based on a non-correlated version of the first signal. The transceiver further includes a carrier sense unit configured to, based on the second signal, generate a third signal indicating (i) whether the radio frequency channel is busy or (ii) whether the first signal is valid.

摘要翻译： 收发器，包括：天线，被配置为接收在射频信道上发送的第一信号; 以及峰值与旁瓣比确定单元，其被配置为基于所述比率基于峰值和旁瓣值生成第二信号，并且所述峰值和旁瓣值是基于非 - 相关版本的第一个信号。 所述收发机还包括载波侦听单元，被配置为基于所述第二信号，生成指示（i）所述无线电频道是否正忙的第三信号，或者（ii）所述第一信号是否有效。

公开(公告)号：US08032095B1

公开(公告)日：2011-10-04

申请号：US11213907

申请日：2005-08-30

申请人： Kevin Hsiao-Cheng Tang ,  Atul Salhotra

发明人： Kevin Hsiao-Cheng Tang ,  Atul Salhotra

IPC分类号： H04B1/04

CPC分类号： H04B1/0466

摘要： A method and circuit for indicating signal faults in wireless transmissions, particularly, a carrier leak, includes an input to receive a wireless signal, a bias detector that detects a bias in a portion of the signal and outputs a bias value indicative of the bias, an evaluator configured to compare the bias value to at least one allowable transmission signal value, and output a signal when the bias value is outside the allowable transmission signal value, and an output, responsive to the evaluator, to indicate a carrier leakage in the wireless signal. A buffer may be provided between the input and the evaluator. The sensitivity of the circuit may be adjusted and a protocol determination may be made.

摘要翻译： 用于指示无线传输中的信号故障，特别是载波泄漏的方法和电路包括接收无线信号的输入端，偏置检测器，其检测信号的一部分中的偏置并输出指示偏置的偏置值， 评估器，被配置为将所述偏置值与至少一个可允许的传输信号值进行比较，并且当所述偏置值在所述允许的传输信号值之外时输出信号;以及响应于所述评估器的输出，以指示所述无线电中的载波泄漏 信号。 可以在输入和评估器之间提供缓冲器。 可以调整电路的灵敏度，并且可以进行协议确定。