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公开(公告)号：WO2019099312A1
公开(公告)日：2019-05-23
申请号：PCT/US2018/060239
申请日：2018-11-12
Applicant: COLGATE-PALMOLIVE COMPANY
Inventor： ZHANG, Xiaonan , SORRENTINO, Alan , DAEP, Carlo , WU, Zi
Abstract: An ultrasonic system may include: an oral care device including: a head; a plurality of teeth cleaning elements extending from a first side of the head; and an ultrasound module including an ultrasound transceiver positioned in the head, the ultrasound transceiver configured to produce an ultrasound signal on the first side of the head and to generate a detection signal from a reflected ultrasound signal; and a processing module operably coupled to the ultrasound module to receive the detection signal; wherein the processing module includes a programmable processor configured to process the detection signal non-linearly with respect to time by first identifying a first reflection representing a surface of a tooth and then determining whether a second reflection peak is present in the detection signal at a time prior to the first reflection peak, the second reflection peak representing a biofilm on the surface of the tooth.
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公开(公告)号：EP3709835A1
公开(公告)日：2020-09-23
申请号：EP18807837.2
申请日：2018-11-12
Applicant: Colgate-Palmolive Company
Inventor： ZHANG, Xiaonan , SORRENTINO, Alan , DAEP, Carlo , WU, Zi
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