Test system and method for parallel modulation error measurement of transceivers
AssigneeAgilent Technologies, Inc.
InventorPeter O'Neill
Life of this patent
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Abstract
A test system is capable of performing parallel modulation error measurement of transceivers using a loop-back configuration. Each transceiver includes a transmitter and a receiver. A signal generator generates a first modulated signal for input to the receivers of the transceivers. A tester is operable to measure a first demodulation error produced by the receiver in response to the first modulated signal and to measure a modulation error of the transmitter based on the first demodulation error and a second demodulation error. The second demodulation error is produced by the receiver in response to a second modulated signal generated by the transmitter and coupled from the transmitter to the receiver.
Claims24
A test system for testing a transceiver comprising a receiver and a transmitter, said test system comprising:
- a signal generator operable to generate a first modulated signal;
- and
- a tester operable to measure a first demodulation error produced by the receiver in response to said first modulated signal and to measure a modulation error of the transmitter based on said first demodulation error and a second demodulation error, said second demodulation error produced by the receiver in response to a second modulated signal generated by the transmitter and coupled from the transmitter to the receiver.
A test system for parallel modulation error testing of transceivers, each including a receiver and a transmitter, said test system comprising:
- a signal generator operable to generate a first modulated signal for substantially simultaneous input to the receivers of each of the transceivers;
- and
- a tester operable to measure a respective first demodulation error produced by each of the receivers in response to said first modulated signal and to measure a respective modulation error for each of the transmitters based on said respective first demodulation error and a second respective demodulation error, said second respective demodulation error produced by each of the receivers in response to a respective second modulated signal generated by the respective transmitters and coupled from the respective transmitters to the respective receivers.
A method for testing a transceiver including a receiver and a transmitter, said method comprising:
- receiving a first modulated signal at the receiver;
- measuring a first demodulation error for the receiver based on said first modulated signal;
- producing a second modulated signal by the transmitter;
- receiving said second modulated signal at the receiver;
- and
- measuring a modulation error for the transmitter based on said first demodulation error and a second demodulation error produced by the receiver in response to said second modulated signal.
Dependencies are inferred from the claim text.