Patent ID: 11913988
Assignee: QUALCOMM TECHNOLOGIES, INC.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A method for testing a system, comprising:
providing a transducer module having:
a plurality of transducers having a common-mode terminal, each transducer configured to independently produce corresponding output signal, relative to the common-mode terminal, in response to a common stimulus, and
a transducer output interface comprising a plurality of transducer output terminals, each transducer output terminal corresponding to a one of the plurality of transducers and configured to provide corresponding output signal;
providing a transducer signal amplifier input interface comprising a plurality of amplifier input terminals, each amplifier input terminal of the plurality of amplifier input terminals operably coupled to a corresponding one of the transducer output terminals, and a transducer signal amplifier output interface configured to provide a transducer signal amplifier output signal having an amplifier output amplitude;
injecting a conditioned alternating signal into the common mode terminal, the conditioned alternating signal being an electrical signal having an injected amplitude; and
determining whether the plurality of transducers are not well matched by;
comparing the transducer signal amplifier output signal to a pre-determined mismatch threshold.