公开(公告)号：US08272248B2

公开(公告)日：2012-09-25

申请号：US12952710

申请日：2010-11-23

申请人： Mark T. Guenther ,  Daniel D. Carpenter ,  Jarret D. Zablocki ,  Fredric C. Schmidt ,  Richard Thomas Rooney ,  Timothy Alfred Nevius ,  Scott Thomas Porter ,  Leslie Hill

发明人： Mark T. Guenther ,  Daniel D. Carpenter ,  Jarret D. Zablocki ,  Fredric C. Schmidt ,  Richard Thomas Rooney ,  Timothy Alfred Nevius ,  Scott Thomas Porter ,  Leslie Hill

IPC分类号： G01N7/00

CPC分类号： G01N1/2252 ,  G01N2001/2255

摘要： An emission test system may include at least one controller configured to determine, directly or indirectly, a quantity of diluted exhaust sample in a container at the completion of an emissions test, and to cause additional diluent gas to be added to the container based on the determined quantity.

摘要翻译： 排放测试系统可以包括至少一个控制器，其被配置为在排放测试完成时直接地或间接地确定容器中稀释的废气样本的量，并且基于所述排放测试系统将附加的稀释气体添加到容器中 确定数量。

公开(公告)号：US4414548A

公开(公告)日：1983-11-08

申请号：US249073

申请日：1981-03-30

申请人： Daniel D. Carpenter ,  Ronald L. Lanning

发明人： Daniel D. Carpenter ,  Ronald L. Lanning

IPC分类号： G01P5/00 ,  G01P3/42 ,  G01S13/60 ,  G01S9/44

CPC分类号： G01S13/60

摘要： A vehicle velocity sensing system is disclosed which includes a doppler velocity sensor (10, 12) and means for reducing spurious signal components in the output of the sensor. An accelerometer (30, 32) is mounted so as to sense vehicle accelerations along the boresight of the doppler velocity sensor. A processor (34, 36) processes the output of the accelerometer to provide a signal which corresponds essentially to the spurious components of the output of the doppler radar velocity sensor. A signal combiner (38, 40) combines the output of the processor with the output of the doppler velocity sensor to derive a corrected output signal which is more closely indicative of the velocity of the vehicle.

摘要翻译： 公开了一种车速检测系统，其包括多普勒速度传感器（10,12）和用于减少传感器输出中的杂散信号分量的装置。 加速度计（30,32）被安装成沿着多普勒速度传感器的视轴感测车辆加速度。 处理器（34,36）处理加速度计的输出以提供基本上对应于多普勒雷达速度传感器的输出的杂散分量的信号。 信号组合器（38,40）将处理器的输出与多普勒速度传感器的输出组合以得到校正的输出信号，该校正输出信号更加紧密地指示车辆的速度。

公开(公告)号：US4020461A

公开(公告)日：1977-04-26

申请号：US633148

申请日：1975-11-18

申请人： William B. Adams ,  Douglas R. Anderson ,  Daniel D. Carpenter

发明人： William B. Adams ,  Douglas R. Anderson ,  Daniel D. Carpenter

IPC分类号： H03M13/35 ,  H04L1/00 ,  H04L27/26 ,  G06F11/12

CPC分类号： H04L1/004 ,  H03M13/35 ,  H04L27/2626 ,  H04L27/2647

摘要： A system for transmitting digital information such as audio or video over a lossy or dispersive medium. The digital information is of the type where certain bits are more important than others and hence the less important bits can suffer a greater bit error rate. Accordingly, the most important bits are encoded into a (7,k) 8-ary Reed Solomon code where 7 is the length of the code and k is the dimension of the code. The less important bits are then respectively encoded into a (7,k+1) or a (7,k+2) 8-ary Reed Solomon code. The code words are modulated onto a plurality of tones or subcarriers. The decoding is effected by initially demodulating the subcarriers and generating a candidate set of code words from each 7-tuple of demodulated 8-ary symbols corresponding to a transmitted code word. The decoding of each transmitted code word is completed by making the statistical decision that the transmitted code word is the member of the associated group of candidate code words maximizing an adaptive maximum likelihood test statistic.

摘要翻译： 用于通过有损或分散介质传输诸如音频或视频的数字信息的系统。 数字信息是某些位比其他位更重要的类型，因此较不重要的位可能遭受更大的误码率。 因此，最重要的比特被编码为（7，k）8进制里德所罗门码，其中7是码的长度，k是码的维数。 然后较不重要的比特分别编码为（7，k + 1）或（7，k + 2）8进制里德所罗门码。 码字被调制到多个音调或子载波上。 通过初始解调子载波并且从对应于所发送的码字的解调的8元符号的每个7元组生成候选的码字集合来实现解码。 通过使所发送的代码字是相关联的候选代码字组的成员的统计判定来完成每个发送的代码字的解码，使自适应最大似然检验统计量最大化。