Method and apparatus for synchronizing to a data stream for an inductively coupled transponder
First Claim
1. A method of transmitting data between two inductively coupled circuits, said method comprising the steps of:
- (a) providing a transmitting circuit;
(b) providing a receiving circuit spaced from said transmitting circuit; and
(c) generating a data signal in said transmitting circuit, said data signal including a first component representing said data and having a phase, and a second component identifying said first component and having a phase that is shifted a predetermined amount with respect to said phase of said first component.
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Accused Products
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.
113 Citations
9 Claims
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1. A method of transmitting data between two inductively coupled circuits, said method comprising the steps of:
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(a) providing a transmitting circuit;
(b) providing a receiving circuit spaced from said transmitting circuit; and
(c) generating a data signal in said transmitting circuit, said data signal including a first component representing said data and having a phase, and a second component identifying said first component and having a phase that is shifted a predetermined amount with respect to said phase of said first component. - View Dependent Claims (2, 3)
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4. An apparatus comprising:
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a transmitting circuit including a transmitting coil, said transmitting circuit generating electrical energy in said transmitting coil; and
a receiving circuit spaced from and inductively coupled to said transmitting circuit, said receiving circuit including modulating means for generating a carrier signal including a first component encoding a plurality of consecutive data signals and having a phase, and a second component identifying the beginning of respective ones of said data signals and having a phase that is shifted a predetermined amount with respect to said phase of said first component. - View Dependent Claims (5, 6, 7, 8, 9)
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Specification