公开(公告)号：US07201034B2

公开(公告)日：2007-04-10

申请号：US10521746

申请日：2003-07-18

申请人： Tatsu Kobayakawa ,  Hideki Toda ,  Sachiko Saito

发明人： Tatsu Kobayakawa ,  Hideki Toda ,  Sachiko Saito

IPC分类号： G01N29/02 ,  G01N29/22 ,  G01N29/44

CPC分类号： G01N29/40 ,  G01N29/032 ,  G01N29/343 ,  G01N29/48 ,  G01N2291/0212 ,  G01N2291/02809 ,  G01N2291/02818 ,  G01N2291/02836

摘要： A gas concentration measurement instrument comprises: ultrasonic wave transmitting means for transmitting an ultrasonic wave according to an ultrasonic wave generation signal composed of a group of rectangular pulse waves; ultrasonic wave receiving means for converting the ultrasonic wave transmitted through the gas in the measurement region into an electric signal to use it as an ultrasonic wave reception signal; and gas concentration measuring means for measuring the signal output time when the ultrasonic wave generation signal is outputted, generating an envelope processing signal by subjecting the ultrasonic wave reception signal to an envelope extracting processing, measuring the threshold fall time when the envelope processing signal decreases below a predetermined threshold after exceeding the threshold, and measuring the difference between the threshold fall time and the signal output time as change in the gas concentration.

摘要翻译： 气体浓度测量仪器包括：超声波发射装置，用于根据由一组矩形脉冲波组成的超声波发生信号发送超声波; 超声波接收装置，用于将通过测量区域中的气体传输的超声波转换为电信号，以将其用作超声波接收信号; 以及气体浓度测量装置，用于在输出超声波产生信号时测量信号输出时间，通过对超声波接收信号进行包络提取处理产生包络处理信号，该包络提取处理测量包络处理信号下降时的阈值下降时间 超过阈值之后的预定阈值，并且测量阈值下降时间和信号输出时间之间的差作为气体浓度的变化。

公开(公告)号：US20050235734A1

公开(公告)日：2005-10-27

申请号：US10521746

申请日：2003-07-18

申请人： Tatsu Kobayakawa ,  Hideki Toda ,  Sachiko Saito

发明人： Tatsu Kobayakawa ,  Hideki Toda ,  Sachiko Saito

IPC分类号： G01N29/02 ,  G01N29/00 ,  G01N29/032 ,  G01N29/40 ,  G01N29/44 ,  G01N29/48

CPC分类号： G01N29/40 ,  G01N29/032 ,  G01N29/343 ,  G01N29/48 ,  G01N2291/0212 ,  G01N2291/02809 ,  G01N2291/02818 ,  G01N2291/02836

摘要： A gas concentration measurement instrument comprises: ultrasonic wave transmitting means for transmitting an ultrasonic wave according to an ultrasonic wave generation signal composed of a group of rectangular pulse waves; ultrasonic wave receiving means for converting the ultrasonic wave transmitted through the gas in the measurement region into an electric signal to use it as an ultrasonic wave reception signal; and gas concentration measuring means for measuring the signal output time when the ultrasonic wave generation signal is outputted, generating an envelope processing signal by subjecting the ultrasonic wave reception signal to an envelope extracting processing, measuring the threshold fall time when the envelope processing signal decreases below a predetermined threshold after exceeding the threshold, and measuring the difference between the threshold fall time and the signal output time as change in the gas concentration.

摘要翻译： 气体浓度测量仪器包括：超声波发射装置，用于根据由一组矩形脉冲波组成的超声波发生信号发送超声波; 超声波接收装置，用于将通过测量区域中的气体传输的超声波转换为电信号，以将其用作超声波接收信号; 以及气体浓度测量装置，用于在输出超声波产生信号时测量信号输出时间，通过对超声波接收信号进行包络提取处理产生包络处理信号，该包络提取处理测量包络处理信号下降时的阈值下降时间 超过阈值之后的预定阈值，并且测量阈值下降时间和信号输出时间之间的差作为气体浓度的变化。

公开(公告)号：US5329523A

公开(公告)日：1994-07-12

申请号：US945130

申请日：1992-09-15

申请人： Sachiko Saito ,  Takeshi Uehara

发明人： Sachiko Saito ,  Takeshi Uehara

IPC分类号： H04M3/42 ,  H04M3/46 ,  H04Q3/545 ,  H04Q3/58 ,  H04Q11/04 ,  H04J3/02 ,  H04M3/54

CPC分类号： H04M3/42 ,  H04M3/46 ,  H04Q11/0428

摘要： An extension agent system of an ISDN electronic exchange having a switching network to which interfaces grouped into groups are connected, wherein extension agent numbers are respectively assigned to the groups of the interfaces and each interface includes a plurality of channels, has a management unit which manages first information indicating, for each interface, the number of channels being used and second information indicating, for each interface, the number of available channels. The management unit includes a table which stores third information indicating, for each of the groups of the interfaces, a sequence of the interfaces to be accessed such that one of the interfaces receives a call having the extension agent number. The system also has a control unit which selects one of the interfaces for receiving a call having the extension agent number on the basis of the first information, the second information and the third information.

摘要翻译： 一种具有交换网络的ISDN电子交换机的分机代理系统，连接有分组的接口，其中分机号码分别分配给接口组，每个接口包括多个信道，具有管理单元，管理单元管理 第一信息针对每个接口指示正在使用的信道的数量，以及针对每个接口指示可用频道数量的第二信息。 管理单元包括存储表示针对每个接口组的第三信息的表，其中接口的一个接口接收到具有扩展代理号码的呼叫。 系统还具有控制单元，该控制单元基于第一信息，第二信息和第三信息来选择用于接收具有扩展代理号码的呼叫的接口之一。