Receiver circuit
First Claim
1. A receiver circuit comprising:
- a first rectifier configured to receive a signal from an antenna;
a second rectifier configured to receive the signal from the antenna;
a first transistor connected between the first rectifier and a first output of the receiver circuit, the first transistor including a drain connected to a first output of the first rectifier, a source connected to the first output of the receiver circuit, and a gate to receive a voltage based on an output of the second rectifier, wherein the first transistor is configured to be in an open state when a level of the signal from the antenna exceeds a predetermined level; and
a second transistor connected between the first rectifier and a second output of the receiver circuit, the second transistor including a drain connected to the second output of the first rectifier, a source connected to the second output of the receiver circuit, and a gate to receive the voltage, wherein the second transistor is configured to be in the open state when the level of the signal from the antenna exceeds the predetermined level.
2 Assignments
0 Petitions
Accused Products
Abstract
A receiver circuit and a device incorporating a receiver circuit are described, including a receiver circuit comprising a first rectifier arranged to receive a signal from an antenna, a second rectifier arranged to receive the signal from the antenna, and a first depletion mode NMOS transistor switch connected between the first rectifier and a first output of the receiver circuit, wherein a drain of the first transistor switch is connected to a first output of the first rectifier, a source of the first transistor switch comprises the first output of the receiver circuit, and a gate of the first transistor switch is arranged to receive a voltage based on an output of the second rectifier, such that the transistor switch is opened when a level of the signal from the antenna exceeds a predetermined level.
4 Citations
19 Claims
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1. A receiver circuit comprising:
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a first rectifier configured to receive a signal from an antenna; a second rectifier configured to receive the signal from the antenna; a first transistor connected between the first rectifier and a first output of the receiver circuit, the first transistor including a drain connected to a first output of the first rectifier, a source connected to the first output of the receiver circuit, and a gate to receive a voltage based on an output of the second rectifier, wherein the first transistor is configured to be in an open state when a level of the signal from the antenna exceeds a predetermined level; and a second transistor connected between the first rectifier and a second output of the receiver circuit, the second transistor including a drain connected to the second output of the first rectifier, a source connected to the second output of the receiver circuit, and a gate to receive the voltage, wherein the second transistor is configured to be in the open state when the level of the signal from the antenna exceeds the predetermined level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A device, comprising:
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an antenna; a communications circuit; and a receiver circuit comprising; a first rectifier configured to receive a signal from an antenna; a second rectifier configured to receive the signal from the antenna; a first transistor connected between the first rectifier and a first output of the receiver circuit, the first transistor including a drain connected to a first output of the first rectifier, a source connected to the first output of the receiver circuit, and a gate to receive a voltage based on an output of the second rectifier, wherein the first transistor is configured to be in an open state when a level of the signal from the antenna exceeds a predetermined level; and a second transistor connected between the first rectifier and a second output of the receiver circuit, the second transistor including a drain connected to the second output of the first rectifier, a source connected to the second output of the receiver circuit, and a gate to receive the voltage, wherein the second transistor is configured to be in the open state when the level of the signal from the antenna exceeds the predetermined level. - View Dependent Claims (17, 18, 19)
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Specification