Spectral shaping circuit
First Claim
1. A testing circuit for use in an inductive coupling system to test communication devices, comprising:
- at least an output transformer having a frequency response for providing a signal having electrical properties compatible with a communication device to be tested; and
, a spectral shaping circuit having an input port for receiving a test signal and an output port for providing a shaped test signal, the shaped test signal for being provided via the at least an output transformer to a device under test, the spectral shaping circuit for partitioning the test signal in dependence upon spectral ranges thereof and relating to a frequency response of at least an output transformer for shaping the frequency characteristics of the received signal in approximately inverse proportion to the frequency response of the at least an output transformer.
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Accused Products
Abstract
A testing circuit for use in an inductive coupling system to test communication devices is disclosed. The testing circuit including at least an output transformer having a frequency response for providing a signal having electrical properties compatible with a communication device to be tested; and, a spectral shaping circuit having an input port for receiving a test signal and an output port for providing a shaped test signal, the shaped test signal for being provided via the at least an output transformer to a device under test, the spectral shaping circuit for partitioning the test signal in dependence upon pre-determined spectral ranges thereof and relating to a frequency response of at least an output transformer for shaping the frequency characteristics of the received signal in approximately inverse proportion to the frequency response of the at least an output transformer.
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Citations
16 Claims
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1. A testing circuit for use in an inductive coupling system to test communication devices, comprising:
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at least an output transformer having a frequency response for providing a signal having electrical properties compatible with a communication device to be tested; and
,a spectral shaping circuit having an input port for receiving a test signal and an output port for providing a shaped test signal, the shaped test signal for being provided via the at least an output transformer to a device under test, the spectral shaping circuit for partitioning the test signal in dependence upon spectral ranges thereof and relating to a frequency response of at least an output transformer for shaping the frequency characteristics of the received signal in approximately inverse proportion to the frequency response of the at least an output transformer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of testing a communication device comprising the steps of:
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providing a test signal to an input port of a spectral shaping circuit for providing a shaped test signal at an output port thereof;
providing the shaped test signal to a transformer;
transforming the shaped test signal;
measuring the transformed shaped test signal to provide measured results;
comparing the measured results against a known desired result to provide comparison results; and
in dependence upon the comparison result tuning the spectral shaping circuit until the comparison result is within predetermined tolerances.
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Specification