发明名称 |
Lower power wake-up device |
摘要 |
A circuit producing a wake-up signal with a frequency selective RF amplifier that produces an amplified RF output. An RF detector detects the RF output and produces a signal W indicative of the the RF output signal's presence. A threshold detector determines if the amplified output signal has reached a predetermined threshold and produces an output T. A clock signal is generated in response to the threshold detector output signal T. A data decoder logic circuit turns off the clock in the absence of an RF output signal for a time period and decodes the RF detector output W into a stream of output signals. A serial comparator compares a most recent stream of N output data from the data decoder logic with a stored reference to generate a wake-up signal that enables power to an electronic system. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract. |
申请公布号 |
US8019316(B2) |
申请公布日期 |
2011.09.13 |
申请号 |
US20080151214 |
申请日期 |
2008.05.05 |
申请人 |
SONY CORPORATION;SONY ELECTRONICS INC. |
发明人 |
HUSTON JAMES;MILNE JAMES R. |
分类号 |
H04B1/06 |
主分类号 |
H04B1/06 |
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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