Obtaining information from time variation of sensing results
First Claim
1. A method of using a sensor, the method comprising:
- while an object travels past the sensor, operating the sensor to obtain sensing results, the sensing results indicating one or more sensed time-varying waveforms with time variation that includes information about the object; and
using the sensing results in a comparing operation on a set of time-varying waveforms to obtain comparison results indicating motion-independent information about the object;
the set of time-varying waveforms including at least one of the sensed time-varying waveforms;
the act of using the sensing results in a comparing operation including;
performing time scaling on at least one of the set of time-varying waveforms.
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Accused Products
Abstract
Sensing results from moving objects, e.g. from photosensing emanating light or from impedance-based sensing, can indicate sensed time-varying waveforms with information about objects. For example, a sensed time-varying waveform can be compared with another waveform, such as a reference waveform produced by objects of a certain type, to obtain comparison results indicating motion-independent information about the object; time-scaling can adjust for displacement rate such as speed. Also, a modulation periodicity value can be obtained from a sensed time-varying waveform and used in obtaining information about an object; for example, a periodic modulation frequency can be used with a given time'"'"'s chirp frequency to obtain phase information about an object'"'"'s position. Or, where periodic modulation frequency indicates displacement rate, time scaling during comparison can use a scaling factor based on the frequency. Objects can move fluidically as in flow cytometry or through scanning movement, as in document scanning.
109 Citations
38 Claims
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1. A method of using a sensor, the method comprising:
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while an object travels past the sensor, operating the sensor to obtain sensing results, the sensing results indicating one or more sensed time-varying waveforms with time variation that includes information about the object; and using the sensing results in a comparing operation on a set of time-varying waveforms to obtain comparison results indicating motion-independent information about the object;
the set of time-varying waveforms including at least one of the sensed time-varying waveforms;the act of using the sensing results in a comparing operation including; performing time scaling on at least one of the set of time-varying waveforms. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of using encoding/sensing arrangements, the method comprising:
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operating an encoding/sensing arrangement to obtain sensing results for an object moving relative to the encoding/sensing arrangement, the sensing results indicating one or more sensed time-varying waveforms with time variation as a result of the object'"'"'s moving relative to the encoding/sensing arrangement;
the act of operating the encoding/sensing arrangement to obtain sensing results including;operating the encoding/sensing arrangement to encode the time variation in accordance with a set of one or more patterns, the set including at least one of; an excitation pattern; a pattern in a filter arrangement; a pattern relative to which the object is displaced; a patterned sensing arrangement; a periodic pattern; a chirp pattern; a random pattern; a pattern in space; and a pattern in time; the act of operating the encoding/sensing arrangement to obtain sensing results further including at least one of; photosensing light emanating from the object; and performing impedance-based sensing; and performing a comparing operation on a set of time-varying waveforms to obtain comparison results;
the set of time-varying waveforms including at least one of the sensed time-varying waveforms and also including a reference time-varying waveform, the reference time-varying waveform being related to at least one of the set of patterns. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of using a sensor, the method comprising:
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while objects travel past the sensor, operating the sensor to obtain sensing results, the sensing results indicating one or more sensed time-varying waveforms with time variation that includes information about the objects; and using the sensing results in a comparing operation on a set of time-varying waveforms to obtain comparison results indicating motion-independent information about the objects;
the set of time-varying waveforms including at least one of the sensed time-varying waveforms;the act of using the sensing results in a comparing operation including; performing time scaling on at least one of the set of time-varying waveforms. - View Dependent Claims (24, 25, 26)
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27. Apparatus comprising:
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a fluidic structure that includes a channel through which objects can travel during operation of the apparatus; along the channel, a sensor arrangement that can obtain sensing results indicating one or more sensed time-varying waveforms; and circuitry that can receive sensing results from the sensor arrangement and can, in response, obtain information about the objects;
the circuitry being structured to use the sensing results from the sensor arrangement in a comparing operation on a set of time-varying waveforms to obtain comparison results indicating motion-independent information about the objects;
the set of time-varying waveforms including at least one of the sensed time-varying waveforms;in using the sensing results in the comparing operation, the circuitry performing time scaling on at least one of the set of time-varying waveforms. - View Dependent Claims (28, 29, 30)
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31. A method of using a sensor, the method comprising:
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while an object travels, operating the sensor to obtain sensing results, the sensing results indicating one or more sensed time-varying waveforms that include periodic modulation; and using the sensing results to obtain information about the object;
the act of using the sensing results including;obtaining a modulation periodicity value from the periodic modulation of at least one of the sensed time-varying waveforms; and obtaining information about the object using the modulation periodicity value and one or more of the sensed time-varying waveforms, the act of obtaining information about the object including; time scaling a first set of one or more time-varying waveforms based on the modulation periodicity value, the first set including at least one of; one or more of the sensed time-varying waveforms; and a reference time-varying waveform; and comparing a second set of two or more time-varying waveforms;
the second set including at least one of the sensed time-varying waveforms;
the second set including at least one of the first set of time-scaled time-varying waveforms. - View Dependent Claims (32, 33, 34, 35)
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36. A method of using sensors, the method comprising:
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while an object travels, operating a sensor to obtain sensing results, the sensing results indicating one or more sensed time-varying waveforms that include periodic modulation and chirp modulation; and using the sensing results to obtain information about the object;
the act of using the sensing results including;obtaining a modulation periodicity value from the periodic modulation of at least one of the sensed time-varying waveforms; obtaining a chirp periodicity value from the chirp modulation of at least one of the sensed time-varying waveforms, the chirp periodicity value indicating chirp periodicity at a respective time; and using the modulation and chirp periodicity values to obtain the information about the object at the respective time. - View Dependent Claims (37, 38)
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Specification