发明名称 |
Method for transmitting data from an interrogating device to portable objects |
摘要 |
A method of information transmission from an interrogator system to portable objects. The information is transmitted through ternary amplitude modulation and positional pulse coding. A frame is made up of a Start Of Frame (SOF) marker made up of two like-polarity pulses, patterns that transmit binary symbols and are composed of two opposite-polarity pulses, and lastly an End Of Frame (EOF) marker that is made up only of a single pulse. The present invention is notably intended for interrogating radio frequency (RFID) tags.
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申请公布号 |
US6954496(B2) |
申请公布日期 |
2005.10.11 |
申请号 |
US20010926039 |
申请日期 |
2001.08.20 |
申请人 |
COMMISSARIAT A L'ENERGIE ATOMIQUE |
发明人 |
CROCHON ELISABETH;THOMAS THIERRY;DES NOES MATHIEU BOUVIER |
分类号 |
H04L27/02;H04B1/59;H04B7/26;H04L25/34;H04L25/49;(IPC1-7):H03K7/04 |
主分类号 |
H04L27/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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