Patent ID: 8711981

Claim:
An integrated circuit, comprising: a receiver, wherein the receiver comprises a first input port for receiving a first oscillatory input signal, a second input port for receiving a second oscillatory input signal, and an output port for delivering an oscillatory output signal which is a function of both the first input signal and the second input signal; and an oscillator circuit, wherein the oscillator circuit comprises a first output port for delivering a first oscillatory signal, a second output port for delivering a second oscillatory signal, wherein the first output port of the oscillator circuit is coupled to the first input port of the receiver to test a function of the receiver, the second output port of the oscillator circuit is coupled to the second input port of the receiver, and the first input port of the receiver is uncoupled from the first output port of the oscillator circuit after the function of the receiver is tested; and at least one of: a first detector, for measuring the power or amplitude of the first oscillatory signal transmitted to the first input port, a second detector, for measuring the power or amplitude of that portion of the first oscillatory signal that is reflected from the first input port, a third detector, for measuring the power or amplitude of the second oscillatory signal transmitted to the second input port, and a fourth detector, for measuring the power or amplitude of that portion of the second oscillatory signal that is reflected from the second input port.