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公开(公告)号:US07605700B2
公开(公告)日:2009-10-20
申请号:US11376265
申请日:2006-03-16
申请人: Randall Allen Drago , Ming-Hao Sun , Chun-Huei Bair , Kevin J. Powell , Omid Roshan-Afshar , Theodore Hockey , Jonathan Pfeifer
发明人: Randall Allen Drago , Ming-Hao Sun , Chun-Huei Bair , Kevin J. Powell , Omid Roshan-Afshar , Theodore Hockey , Jonathan Pfeifer
CPC分类号: G06K19/0723 , G06K5/00
摘要: Methods, systems, and apparatuses for monitoring and refreshing data stored in radio frequency identification (RFID) tags are described. A voltage margin for data stored in memory of a tag is checked. If the voltage margin has decreased to an undesirable level, the data stored in the tag is refreshed.
摘要翻译: 描述用于监视和刷新存储在射频识别(RFID)标签中的数据的方法,系统和装置。 检查存储在标签存储器中的数据的电压余量。 如果电压余量降低到不合需要的水平,则刷新存储在标签中的数据。
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公开(公告)号:US20080001725A1
公开(公告)日:2008-01-03
申请号:US11495676
申请日:2006-07-31
申请人: Joseph White , Theodore Hockey , Ming-Hao Sun , Randall Allen Drago , Omid Roshan-Afshar , Jonathan Pfeifer , Chun-Huei Bair
发明人: Joseph White , Theodore Hockey , Ming-Hao Sun , Randall Allen Drago , Omid Roshan-Afshar , Jonathan Pfeifer , Chun-Huei Bair
CPC分类号: G06K19/07309 , G06F21/31 , G06F21/35 , G06Q20/341 , G06Q20/3576 , G07F7/082 , G07F7/1008
摘要: Methods, systems, and apparatuses for preventing unauthorized reading of data stored in tags are described. A non-identifying bit pattern, an identifying bit pattern, and a first passcode are stored in the tag. A read lock command is received by the tag. The tag determines whether a second passcode associated with the read lock command matches the first passcode. Read access to the identifying bit pattern is disabled if it is determined that the second passcode matches the first passcode.
摘要翻译: 描述用于防止未经授权的读取存储在标签中的数据的方法,系统和装置。 标识中存储非识别位模式,识别位模式和第一密码。 标签接收到读取锁定命令。 标签确定与读取锁定命令相关联的第二个密码是否与第一个密码相匹配。 如果确定第二个密码与第一个密码相匹配,则对该识别位模式的读访问被禁用。
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公开(公告)号:US20070229230A1
公开(公告)日:2007-10-04
申请号:US11376265
申请日:2006-03-16
申请人: Randall Drago , Ming-Hao Sun , Chun-Huei Bair , Kevin Powell , Omid Roshan-Afshar , Theodore Hockey , Jonathan Pfeifer
发明人: Randall Drago , Ming-Hao Sun , Chun-Huei Bair , Kevin Powell , Omid Roshan-Afshar , Theodore Hockey , Jonathan Pfeifer
CPC分类号: G06K19/0723 , G06K5/00
摘要: Methods, systems, and apparatuses for monitoring and refreshing data stored in radio frequency identification (RFID) tags are described. A voltage margin for data stored in memory of a tag is checked. If the voltage margin has decreased to an undesirable level, the data stored in the tag is refreshed.
摘要翻译: 描述了用于监视和刷新存储在射频识别(RFID)标签中的数据的方法,系统和装置。 检查存储在标签存储器中的数据的电压余量。 如果电压余量降低到不合需要的水平,则刷新存储在标签中的数据。
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