Calibration method and apparatus for signal analysis device
AssigneeTektronix, Inc.
InventorsMark E. Mc Pherson, Gary J. Waldo, Louis R. Eagle, Leif X. Running, Gary M. Johnson, Frederick A. Azinger, Lynne A. Fitzsimmons, Steve K. Sullivan
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Abstract
A method and apparatus for calibrating at least signal probes associated with a signal analysis device by storing existing input channel parameters performing appropriate calibration procedures and restoring input channel operational parameters.
Claims26
A method, comprising:
- storing, in response to a calibration initiation, at least one operational parameter of an input channel in communication with a probe;
- determining if a calibration signal communicated by said probe exhibits a characteristic indicative of inappropriate probe operation;
- adapting at least one calibration parameter in response to a determination of inappropriate probe operation;
- and
- retrieving said at least one operational parameter of said input channel.
A method, comprising:
- storing, in response to a calibration initiation, at least one operational parameter of each of a plurality of input channels in communication with respective probes, each of said input channels providing a respective output signal for subsequent use by a processor;
- determining if said output signals provided by said input channels exhibit a characteristic indicative of inappropriate temporal synchronization;
- adapting a temporal calibration parameter of at least one of said input channels in response to a determination of inappropriate temporal synchronization;
- and
- retrieving said at least one operational parameter of each of a plurality of input channels.
A method, comprising:
- determining, in response to the application of a calibration signal to a probe, whether a corresponding calibration signal communicated by said probe to a measuring device exhibits a characteristic indicative of inappropriate probe operation;
- and
- adapting at least one calibration parameter in response to a determination of inappropriate probe operation.
A method, comprising:
- receiving a calibration signal via a probe;
- setting an attenuation factor of said probe;
- displaying, on a display device, imagery delineating a region associated with a properly calibrated signal;
- and
- selectively indicating whether said received calibration signal comprises a properly calibrated signal.
A method for use in a signal analysis device, said signal analysis device comprising a plurality of input channels and a processor, each of said input channels capable of receiving an input signal from a respective probe and producing therefrom a respective output signal, said processor adapted to process data representative of at least one of said output signals, said method comprising:
- storing, in response to a calibration initiation, at least one operational parameter of an input channel in communication with a probe;
- determining if a calibration signal communicated by said probe exhibits a characteristic indicative of inappropriate probe operation;
- adapting at least one calibration parameter in response to a determination of inappropriate probe operation;
- and
- retrieving said at least one operational parameter of said input channel.
A signal analysis device, comprising:
- a plurality of input channels, each of said input channels capable of receiving an input signal from a respective probe and producing therefrom a respective output signal;
- a processor, adapted to process data representative of at least one of said output signals;
- and
- a calibration signal generator, for generating a calibration signal for communication to at least one of said input channels via a respective probe;
- said processor, in a calibration mode, storing operational parameters of an input channel having associated with it a probe to be calibrated, enabling the calibration of said probe to be calibrated, and restoring to said input channel the stored operational parameters.
Dependencies are inferred from the claim text.