公开(公告)号：US06918539B2

公开(公告)日：2005-07-19

申请号：US10463240

申请日：2003-06-16

申请人： Katsuki Nakajima ,  Koji Sakacho ,  Takuya Murata

发明人： Katsuki Nakajima ,  Koji Sakacho ,  Takuya Murata

IPC分类号： G06K7/00 ,  G06K7/10 ,  G06K7/14

CPC分类号： G06K7/14

摘要： A two-dimensional code reader repeats a cycle of ordinary code-reading processes such as taking an image of an optical data code, extracting a two-dimensional code from the image and decoding optical data of the two-dimensional code in the image. A specified evaluation value for the optical data code is obtained from the results of processes carried out prior to the decoding step and stored if the decoding is done successfully. Data which show the changes in the evaluation value with time are displayed. The evaluation value may be compared with a specified warning level and a warning output is made, depending on the result of the comparison.

摘要翻译： 二维码读取器重复进行普通码读取处理的周期，例如拍摄光学数据码的图像，从图像中提取二维码并解码图像中的二维码的光学数据。 从解码步骤之前执行的处理结果获得光学数据代码的指定评估值，并且如果解码成功完成则存储。 显示显示评估值随时间变化的数据。 评估值可以与指定的警告级别进行比较，并根据比较结果进行警告输出。

公开(公告)号：US07421249B2

公开(公告)日：2008-09-02

申请号：US11040619

申请日：2005-01-21

申请人： Tomonori Ariyoshi ,  Koyo Ozaki ,  Koji Sakacho

发明人： Tomonori Ariyoshi ,  Koyo Ozaki ,  Koji Sakacho

IPC分类号： H04B17/00

CPC分类号： H01Q7/00 ,  G06K7/0008 ,  H01Q1/362 ,  H01Q11/08 ,  H04B5/00 ,  H04B5/0056 ,  H04B5/0062 ,  H04B5/0081

摘要： A read-write processing apparatus communicates with an RFID tag provided with a semiconductor memory to exchange commands and responses through antenna coils. A condition under which only a carrier wave is transmitted is set prior to a communication with the RFID tag and a level from a reception signal obtained under this condition is extracted as noise level. The extracted noise level is displayed or outputted to an output host apparatus.

摘要翻译： 读写处理装置与设置有半导体存储器的RFID标签通信，以通过天线线圈交换命令和响应。 在与RFID标签进行通信之前设定仅发送载波的条件，并且将从该条件获得的接收信号的电平提取为噪声电平。 提取的噪声电平被显示或输出到输出主机装置。

公开(公告)号：US20050170784A1

公开(公告)日：2005-08-04

申请号：US11040619

申请日：2005-01-21

申请人： Tomonori Ariyoshi ,  Koyo Ozaki ,  Koji Sakacho

发明人： Tomonori Ariyoshi ,  Koyo Ozaki ,  Koji Sakacho

IPC分类号： G06K17/00 ,  G06K7/00 ,  H01Q1/36 ,  H01Q7/00 ,  H01Q11/08 ,  H04B1/59 ,  H04B5/00 ,  H04B5/02 ,  H04B17/00

CPC分类号： H01Q7/00 ,  G06K7/0008 ,  H01Q1/362 ,  H01Q11/08 ,  H04B5/00 ,  H04B5/0056 ,  H04B5/0062 ,  H04B5/0081

摘要： A read-write processing apparatus communicates with an RFID tag provided with a semiconductor memory to exchange commands and responses through antenna coils. A condition under which only a carrier wave is transmitted is set prior to a communication with the RFID tag and a level from a reception signal obtained under this condition is extracted as noise level. The extracted noise level is displayed or outputted to an output host apparatus.

摘要翻译： 读写处理装置与设置有半导体存储器的RFID标签通信，以通过天线线圈交换命令和响应。 在与RFID标签进行通信之前设定仅发送载波的条件，并且将从该条件获得的接收信号的电平提取为噪声电平。 提取的噪声电平被显示或输出到输出主机装置。