Audio detection of medium jam
AssigneeKodak Alaris Inc.
InventorBruce Link
Life of this patent
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Abstract
A method of indicating a medium jam along a medium transport path; a plurality of microphones for detecting the sound of the medium being transported as it enters medium transport path and producing a signal representing the sound; a plurality of microphones for detecting the sound of the medium being transported in the medium transport path and producing a signal representing the sound in the medium transport; a plurality of microphones for detecting the sound of the medium being existing the medium transport path and producing a signal representing the sound of the medium existing the medium transport; a processor for producing sound values from the signal and computing the maximum sound responsive to the sound values per each microphone, and indicating the medium jam responsive to the sound values.
Claims20
A system for calibrating jam detection components within a media transport device, the system comprising:
- a transport path within the media transport device;
- a plurality of rollers configured to move media along the transport path;
- at least one microphone located along the transport path and configured to receive signals indicative of the noise of media being transported;
- and
- a system processing unit coupled to a memory, the system processing unit configured to:
- retrieve detected sound values from the at least one microphone for a calibration region along the transport path;
- compute a loudness profile from the detected sound values;
- determine the maximum loudness of the detected sound values to produce a calibration loudness;
- compare the calibration loudness to a default calibration value and an acceptable range to determine if it is acceptable.
A method for calibrating jam detection components within a media transport device, the system comprising:
- moving media along a transport path within a media transport device;
- retrieving detected sound values with a system processing unit coupled to a memory. from at least one microphone located along the transport path and configured to receive signals indicative of the noise of the media being transported, for a calibration region along the transport path;
- computing a loudness profile from the detected sound values with the system processing unit;
- determining the maximum loudness of the detected sound values to produce a calibration loudness with the system processing unit;
- and
- comparing, with the system processing unit. the calibration loudness to a default calibration value and an acceptable range to determine if it is acceptable.
Dependencies are inferred from the claim text.