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US 10,708,400 B2Granted
Mobile terminal
AssigneeLG Electronics Inc.
InventorsHongjo Shim, Hyunwoo Kim, Cheongsun Yun
Life of this patent
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Abstract
A mobile terminal including a terminal body; an ultrasonic sensing unit mounted on at least one side surface of the terminal body and configured to generate an ultrasonic wave on a path propagating along the at least one side surface of the terminal body; and a detecting circuit configured to detect a touch applied to the terminal body by using a signal change caused due to a touch on the path of the ultrasonic wave.
Claims18
A mobile terminal, comprising:
- a terminal body;
- an ultrasonic sensing unit mounted on at least one side surface of the terminal body and configured to generate an ultrasonic wave on a path propagating along the at least one side surface of the terminal body;
- and
- a detecting circuit configured to detect a touch applied to the terminal body by using a signal change caused due to a touch on the path of the ultrasonic wave,
- wherein the ultrasonic sensing unit comprises:
- an ultrasonic output sensor configured to output the ultrasonic wave;
- an ultrasonic receiving sensor spaced apart from the ultrasonic output sensor along the path propagating along the side surface and configured to receive the ultrasonic wave output from the ultrasonic output sensor;
- and
- a force sensor disposed adjacent to the ultrasonic output sensor or the ultrasonic receiving sensor,
- wherein a signal change of the ultrasonic receiving sensor is compensated using touch sensing by the force sensor, and
- wherein the force sensor extracts filtered data with respect to a strength of a force of the touch on the path of the ultrasonic wave, and the sliding input sensed by the ultrasonic sensing unit is compensated based on a compensation algorithm.
8 more elements
Dependencies are inferred from the claim text.