发明申请
US20110279247A1 DATA READING WRITING APPARATUS FOR ACTIVE TAG DEVICE, ACTIVE TAG DEVICE AND SYSTEM THEREOF
审中-公开
用于活动标签设备的数据读取写入设备，活动标签设备及其系统
- 专利标题： DATA READING WRITING APPARATUS FOR ACTIVE TAG DEVICE, ACTIVE TAG DEVICE AND SYSTEM THEREOF
- 专利标题（中）： 用于活动标签设备的数据读取写入设备，活动标签设备及其系统
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申请号： US13186033申请日： 2011-07-19
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公开(公告)号： US20110279247A1公开(公告)日： 2011-11-17
- 发明人: Akira Itasaki , Isamu Yamada , Shinichi Shiotsu , Satoshi Inano , Hideki Tanaka , Daisuke Yamashita , Kazuki Matsui , Hiroyasu Sugano
- 申请人： Akira Itasaki , Isamu Yamada , Shinichi Shiotsu , Satoshi Inano , Hideki Tanaka , Daisuke Yamashita , Kazuki Matsui , Hiroyasu Sugano
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 主分类号： G06K7/01
- IPC分类号： G06K7/01
摘要：
An active tag device includes a controller to cause the wireless communication unit to carry out data transmission at intervals of a first period, and to cause to start measurement of a second period set for determining a timing for causing a wireless communication unit to carry out carrier sense to detect data output by a reading writing apparatus, synchronously with the data transmission, and to cause the wireless communication unit to carry out the carrier sense after the second period elapsed. The reading writing apparatus includes a controller to cause to start measurement of the first period set for synchronizing with carrier sense of the active tag device after a wireless communication unit detected reception of data from the active tag device, and to cause the wireless communication unit to carry out data transmission to the active tag device during the second period after the first period elapsed.
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