Acoustic data coupling system and method
First Claim
Patent Images
1. A data coupler, comprising:
- an acoustic isolation transformer operable to develop an isolated output signal in response to an input signal;
a transmitter adapted to receive a data input signal and coupled to the acoustic isolation transformer, the transmitter operable to generate a continuous periodic input signal for the input signal responsive to the data input signal, wherein the transmitter utilizes one of On/Off Keying, frequency modulation, Frequency Shift Keying, amplitude modulation, and Amplitude Shift Keying to generate the periodic input signal, the transmitter being operable to start generating the periodic input signal responsive to a first transition of the data input signal from a first logic state to a second logic state and to terminate generating the periodic input signal responsive to a second transition of the data input signal from the second logic state to the first logic state; and
a receiver coupled to the acoustic isolation transformer to receive the isolated output signal and operable to generate a data output signal responsive to the isolated output signal.
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Abstract
A data coupler includes an acoustic isolation transformer operable to develop an isolated output signal in response to an input signal. A transmitter is coupled to the acoustic isolation transformer and generates the input signal responsive to a data input signal. A receiver is coupled to the acoustic isolation transformer to receive the isolated output signal and generates a data output signal responsive to the isolated output signal.
74 Citations
45 Claims
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1. A data coupler, comprising:
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an acoustic isolation transformer operable to develop an isolated output signal in response to an input signal; a transmitter adapted to receive a data input signal and coupled to the acoustic isolation transformer, the transmitter operable to generate a continuous periodic input signal for the input signal responsive to the data input signal, wherein the transmitter utilizes one of On/Off Keying, frequency modulation, Frequency Shift Keying, amplitude modulation, and Amplitude Shift Keying to generate the periodic input signal, the transmitter being operable to start generating the periodic input signal responsive to a first transition of the data input signal from a first logic state to a second logic state and to terminate generating the periodic input signal responsive to a second transition of the data input signal from the second logic state to the first logic state; and a receiver coupled to the acoustic isolation transformer to receive the isolated output signal and operable to generate a data output signal responsive to the isolated output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A data coupler, comprising:
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a substrate on which an acoustic isolation transformer, transmitter circuit, and receiver circuit are formed; the acoustic isolation transformer being operable to develop an isolated output signal in response to an input signal; the transmitter being adapted to receive a data input signal and being coupled to the acoustic isolation transformer, the transmitter being operable to apply the input signal to the acoustic isolation transformer responsive to the data input signal, wherein the transmitter is operable to generate a continuous periodic input signal for the input signal responsive to the data input signal, the transmitter utilizing one of On/Off Keying, frequency modulation, Frequency Shift Keying, amplitude modulation, and Amplitude Shift Keying to generate the periodic input signal, the transmitter being operable to start generating the periodic input signal responsive to a first transition of the data input signal from a first logic state to a second logic state and to terminate generating the periodic input signal responsive to a second transition of the data input signal from the second logic state to the first logic state; and the receiver being coupled to the acoustic isolation transformer to receive the isolated output signal and being operable to generate a data output signal responsive to the isolated output signal. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. An electronic system, comprising:
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a first electronic subsystem; a second electronic subsystem; a substrate containing at least one data coupling device, each data coupling device being coupled to the first and second electronic subsystems and each data coupling device including, an acoustic isolation transformer having an input and an output, the isolation transformer operable to develop an isolated output signal on the output in response to an input signal on the input; a transmitter coupled to the input of the isolation transformer and adapted to receive a data input signal, the transmitter operable to generate one of a nonperiodic modulated signal and a periodic modulated signal in response to the data input signal and to apply the modulated signal to the input of the isolation transformer; and a receiver coupled to the output of the isolation transformer to receive the isolated output signal and operable to generate a data output signal responsive to the isolated output signal. - View Dependent Claims (34, 35, 36, 37)
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38. A method of generating a data output signal in response to a data input signal, the data output signal being electrically isolated from the data input signal, the method comprising:
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applying the data input signal to an acoustic data coupler; generating in the acoustic data coupler an acoustic wave in response to the applied data input signal by generating a continuous periodic input signal responsive to the data input signal by applying one of On/Off Keying, frequency modulating a carrier signal responsive to the periodic input signal, and amplitude modulating the data input signal to generate the continuous periodic signal responsive to the data input signal, the On/Off Keying including, starting generation of the periodic input signal responsive to a first transition of the data input signal from a first logic state to a second logic state and terminating generation of the periodic input signal responsive to a second transition of the data input signal from the second logic state to the first logic state; generating the acoustic wave responsive to the continuous periodic signal; and providing the data output signal from the acoustic isolation device responsive to the acoustic wave. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45)
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Specification