Receiver and transmitter receiver system
First Claim
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1. A receiver for receiving messages from a transmitter, the receiver comprising:
- a controller; and
a driver stage for providing a supply voltage to the transmitter based on a control signal;
wherein the controller is further configured to measure the supply voltage and to evaluate a series of succeeding values of the control signal to derive at least one message generated by the transmitter by modulating its current consumption.
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Abstract
A receiver for receiving messages from a transmitter includes a controller and a driver stage for providing a supply voltage to the transmitter based on a control signal. The controller is configured to provide the control signal to compensate for changes of the supply voltage caused by a modulation of the current consumption of the transmitter, such that the supply voltage remains in a predefined range. Furthermore, the controller is configured to evaluate a series of succeeding values of the control signal to derive a message generated by the transmitter by modulating its current consumption.
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Citations
36 Claims
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1. A receiver for receiving messages from a transmitter, the receiver comprising:
a controller; and a driver stage for providing a supply voltage to the transmitter based on a control signal; wherein the controller is further configured to measure the supply voltage and to evaluate a series of succeeding values of the control signal to derive at least one message generated by the transmitter by modulating its current consumption. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A transmitter receiver system, comprising:
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a transmitter configured to generate a message for the receiver by modulating its current consumption; and a receiver comprising; a controller; and a driver stage configured to provide a supply voltage to the transmitter based on a control signal; wherein the controller is further configured to measure the supply voltage and to evaluate a series of succeeding values of the control signal to derive at least one message generated by the transmitter by modulating its current consumption. - View Dependent Claims (27, 28, 29)
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30. A method for receiving messages from a transmitter, the method comprising:
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providing a supply voltage to the transmitter based on a control signal; measuring the supply voltage; and evaluating a series of succeeding values of the control signal to derive a message generated by the transmitter by modulating its current consumption. - View Dependent Claims (31, 32)
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33. A receiver for receiving messages from a transmitter, the receiver comprising:
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a controller; and a driver stage configured to provide a supply voltage to the transmitter based on a control signal; wherein the controller is configured to measure the supply voltage and to provide the control signal to compensate for changes of the supply voltage caused by a modulation of the current consumption of the transmitter, such that the supply voltage remains in a predefined range when the receiver is ready to receive messages; wherein the controller comprises a comparator configured to obtain a digital representation of the supply voltage provided by the driver stage; wherein the controller is configured to evaluate the digital representation of the supply voltage to adjust the control signal; and wherein the controller is configured to evaluate a series of succeeding values of the control signal using a digital model of the driver stage to estimate a supply current of the transmitter to derive a message generated by the transmitter by modulating its current consumption. - View Dependent Claims (34, 35, 36)
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Specification