Invention Grant
US07681801B2 RFID chip with write-once functionality for an operation-stop instruction
有权
具有写入功能的RFID芯片，用于操作停止指令
- Patent Title: RFID chip with write-once functionality for an operation-stop instruction
- Patent Title (中): 具有写入功能的RFID芯片，用于操作停止指令
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Application No.: US11442611Application Date: 2006-05-30
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Publication No.: US07681801B2Publication Date: 2010-03-23
- Inventor: Shusuke Iwata
- Applicant: Shusuke Iwata
- Applicant Address: unknown Atsugi-shi, Kanagawa-ken
- Assignee: Semiconductor Energy Laboratory Co., Ltd
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd
- Current Assignee Address: unknown Atsugi-shi, Kanagawa-ken
- Agency: Robinson Intellectual Property Law Office, P.C.
- Agent Eric J. Robinson
- Priority: JP2005-159479 20050531
- Main IPC: G06K19/00
- IPC: G06K19/00
Abstract:
When an operation-stop instruction is received from an RFID reader/writer, an RFID chip decodes the instruction by a control circuit and conducts the operation-stop instruction. In addition, the RFID chip uses a register which has a write-once function such as an organic memory and does not return to an original state physically if a value is written once as a register which maintains a setting whether there is an operation-stop or not.
Public/Granted literature
- US20060273182A1 Semiconductor device Public/Granted day:2006-12-07
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