Method and apparatus for synchronizing to a data stream for an inductively coupled transponder
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United States of America Patent
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Oct 16, 2001
Issued Date -
N/A
app pub date -
Aug 16, 1999
filing date -
Apr 3, 1996
priority date (Note) -
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Abstract
An apparatus and method of transmitting data between two inductively coupled circuits. The method includes providing a transmitting circuit, providing a receiving circuit spaced from the transmitting circuit, and generating a data signal in the transmitting circuit. The data signal includes a first component representing the data, and a second component identifying a portion of the first component. The apparatus includes a transmitting circuit having a transmitting coil. The transmitting circuit generates electrical energy in the transmitting coil. The apparatus further includes a receiving circuit spaced from and inductively coupled to the transmitting circuit. The receiving circuit includes modulating means for generating a carrier signal including a first component encoding a plurality of consecutive data signals, and a second component identifying the beginning of respective ones of the data signals.
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