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US 2011/0217926 A1Published application
Reverse link signaling via impedance modulation
AssigneeQUALCOMM Incorporated
InventorsZhen Ning Low, Sergio P. Estrada
Life of this patent
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Abstract
Exemplary embodiments are directed to reverse-link signaling via modification of an impedance on the receiver as detected by a transmitter. A method may include receiving a signal from a transmitter at a receiver unit. The method may further include adjusting an impedance detectable by the transmitter by modifying a load coupled with the receiver unit.
Claims30
A method, comprising:
- receiving a signal from a transmitter at a receiver unit;
- and
- adjusting an impedance detectable by the transmitter by modifying a load coupled with the receiver unit.
A method, comprising:
- coupling an output of a receiver unit to a load during a receive state;
- and
- coupling the output of the receiver unit to a voltage, different than the load, during another receive state.
A receiver, comprising:
- a receiver unit configured to receive an RF energy signal;
- and
- a switching circuit coupled to an output of the receiver unit and configured to modify a load coupled with the receiver unit.
A device, comprising:
- a receiver including a receiver unit;
- and
- a switching element configured to at least one of selectively couple the receiver unit to a load and selectively couple the receiver unit to a ground voltage.
A device, comprising:
- means for receiving a signal from a transmitter at a receiver unit;
- and
- means for adjusting an impedance detectable by the transmitter by modifying a load coupled with the receiver unit.
A device, comprising:
- means for coupling an output of a receiver unit to a load during a receive state;
- and
- means for coupling the output of the receiver unit to a voltage, different than the load, during another receive state.
Dependencies are inferred from the claim text.