Invention Grant
US07675420B2 Read apparatus of RF tag and method of controlling read of RF tag
有权
RF标签的读取装置和RF标签的读取控制方法
- Patent Title: Read apparatus of RF tag and method of controlling read of RF tag
- Patent Title (中): RF标签的读取装置和RF标签的读取控制方法
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Application No.: US11728371Application Date: 2007-03-26
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Publication No.: US07675420B2Publication Date: 2010-03-09
- Inventor: Satoshi Kinoshita
- Applicant: Satoshi Kinoshita
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Agency: Scully, Scott, Murphy & Presser, P.C.
- Priority: JP2006-084523 20060327
- Main IPC: G08B13/14
- IPC: G08B13/14
Abstract:
An RF tag system includes a first reader/writer unit and a second reader/writer unit. A first reader/writer control unit is configured to control the first reader/writer unit to read a first data from a first RF tag, and to detect a trouble state of the first reader/writer unit. A second reader/writer control unit is configured to control the second reader/writer unit to read a second data from a second RF tag, and to detect a trouble state of the second reader/writer unit. A monitoring section is configured to issue a selection instruction and to monitor the first reader/writer unit through the first reader/writer control unit, and the second reader/writer unit through the second reader/writer control unit. A switching section is configured to select one of the first reader/writer control unit and the second reader/writer control unit in response to the selection instruction from the monitoring section.
Public/Granted literature
- US20070236326A1 Read apparatus of RF tag and method of controlling read of RF tag Public/Granted day:2007-10-11
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