# US 2021/0278902 A1 · Signal processing device, signal processing method, program, and electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0278902 A1 - Document ID: US20210278902A1 - Status: Published application - Kind: A1 - Application number: 16/325,062 - Filed: 2017-08-17 - Published: 2021-09-09 - Earliest claimed: 2016-08-31 - Assignees: Sony Corporation - Applicants: Sony Corporation - Inventors: AYUMI KATO; OSAMU ITO - Web page: https://patentgrep.com/patent/US20210278902A1 ## CPC - G06F 3/016: {Input arrangements with force or tactile feedback as computer generated output to the user} - G06F 3/0483: Interaction with page-structured environments, e.g. book metaphor - G06F 3/0484: for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range - G06F 3/04847: Interaction techniques to control parameter settings, e.g. interaction with sliders or dials - G06F 3/0485: Scrolling or panning - G06F 3/0488: using a touch-screen or digitiser, e.g. input of commands through traced gestures - G06F 3/04883: for inputting data by handwriting, e.g. gesture or text - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract The present disclosure relates to a signal processing device, a signal processing method, a computer program, and an electronic device that are capable of providing user interface having better operability. The signal processing device includes: an input information acquisition unit configured to acquire input information input through a touch operation by a user; and a feedback control unit configured to output mutually different kinds of feedback control in accordance with a kind of the input information continuously acquired in response to movement of a position touched through the touch operation. In addition, the signal processing device further includes an operation speed calculation unit configured to calculate an operation speed at which a touched position through the touch operation moves, and the feedback control unit changes the output of feedback control in accordance with the operation speed. The present technology is applicable to, for example, an electronic device including a touch panel. ## Claims ### Claim 1 A signal processing device comprising: an input information acquisition unit configured to acquire input information input through a touch operation performed by a user; and a feedback control unit configured to output mutually different kinds of feedback control in accordance with a kind of the input information continuously acquired in response to movement of a position touched through the touch operation. ### Claim 2 (depends on 1) The signal processing device according to claim 1, further comprising an operation speed calculation unit configured to calculate an operation speed at which the position touched through the touch operation moves, wherein the feedback control unit changes output of the feedback control in accordance with the operation speed calculated by the operation speed calculation unit. ### Claim 3 (depends on 2) The signal processing device according to claim 2, wherein the feedback control unit outputs first feedback control in a case where the kind of the input information is a first kind, and outputs second feedback control that is more likely to be perceived than the first feedback control in a case where the kind of the input information is a second kind that is input at a frequency lower than a frequency of the first kind. ### Claim 4 (depends on 3) The signal processing device according to claim 3, wherein, in a case where the operation speed calculated by the operation speed calculation unit is equal to or higher than a predetermined threshold speed, the feedback control unit performs a change to stop outputting of the first feedback control so that only the second feedback control is output. ### Claim 5 (depends on 3) The signal processing device according to claim 3, wherein, in a case where an interval at which the input information is continuously acquired by the input information acquisition unit is shorter than a predetermined threshold interval, the feedback control unit performs a change to stop outputting of any one of the first feedback control and the second feedback control so that an interval of continuous outputting of the first feedback control and the second feedback control becomes equal to or longer than a predetermined threshold interval. ### Claim 6 (depends on 5) The signal processing device according to claim 5, wherein the feedback control unit performs feedback control to always output the second feedback control even in a case where the interval at which the input information is continuously acquired by the input information acquisition unit is shorter than a predetermined threshold interval. ### Claim 7 (depends on 3) The signal processing device according to claim 3, wherein, in a case where an interval at which the input information is continuously acquired by the input information acquisition unit is shorter than a predetermined threshold interval, the feedback control unit performs a change to stop outputting of the first feedback control so that an interval of continuous outputting of the first feedback control and the second feedback control becomes equal to or longer than a predetermined threshold interval and the second feedback control is preferentially output. ### Claim 8 (depends on 3) The signal processing device according to claim 3, wherein, in a case where the touch operation is performed to move a touched position from one direction to another direction, the input information acquisition unit determines that the input information of the second kind is input when touch is canceled in a predetermined range extending toward the other direction from a place at which the input information of the second kind is input. ### Claim 9 (depends on 1) The signal processing device according to claim 1, further comprising a user interface display control unit configured to control display of a seek bar including a bar indicating a total length of contents and a slider indicating a position corresponding to a predetermined place of the contents, wherein the input information acquisition unit acquires, as an input information, the predetermined place of the contents in accordance with a touch operation on the slider. ### Claim 10 (depends on 9) The signal processing device according to claim 9, wherein, in a case where a touch operation on the slider is a round-trip touch operation in a certain range at an operation speed equal to or slower than a predetermined operation speed, the user interface display control unit displays an auxiliary user interface on which the certain range is displayed in an enlarged manner. ### Claim 11 (depends on 1) The signal processing device according to claim 1, wherein, in accordance with a touch operation that entirely scrolls a display screen on which a plurality of contents are displayed, the input information acquisition unit acquires, as the input information, a specific partition that classifies each content, and the feedback control unit outputs the feedback control when the specific partition of the contents passes through an end part of the display screen. ### Claim 12 A signal processing method comprising steps of: acquiring input information input through a touch operation by a user; and outputting mutually different kinds of feedback control in accordance with a kind of the input information continuously acquired in response to movement of a position touched through the touch operation. ### Claim 13 A program configured to cause a computer to execute signal processing comprising steps of: acquiring input information input through a touch operation by a user; and outputting mutually different kinds of feedback control in accordance with a kind of the input information continuously acquired in response to movement of a position touched through the touch operation. ### Claim 14 An electronic device comprising: a touch panel configured to display a user interface for receiving a touch operation by a user, detect a position touched through the touch operation, and vibrate in accordance with signal processing based on the touch operation; and a signal processing device configured to perform signal processing in accordance with the touch operation on the touch panel by the user, wherein the signal processing device includes an input information acquisition unit configured to acquire input information input through the touch operation, and a feedback control unit configured to output feedback control to the touch panel so that vibrations different from each other are performed in accordance with a kind of the input information continuously acquired in response to movement of a position touched through the touch operation.