# US 2020/0401287 A1 · Information processor for changing scroll amount upon receiving touch operation performed on return key or forward key > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0401287 A1 - Document ID: US20200401287A1 - Status: Published application - Kind: A1 - Application number: 16/896,149 - Filed: 2020-06-08 - Published: 2020-12-24 - Earliest claimed: 2019-06-18 - Assignees: KYOCERA Document Solutions Inc. - Applicants: KYOCERA Document Solutions Inc. - Inventors: Takushi DANDOKO - Web page: https://patentgrep.com/patent/US20200401287A1 ## CPC - G06F 3/0485: Scrolling or panning - G06F 3/0482: Interaction with lists of selectable items, e.g. menus - G06F 3/04855: Interaction with scrollbars - 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 An information processor includes a display device, a touch panel, a storage device, and a control device. The control device causes the display device to display a portion of a predefined image, a forward key, and a return key, upon receiving slide operation on a display portion via the touch panel, causes the display device to scroll the predefined image until a movement amount of the predefined image reaches a scroll amount and causes the storage device to store the set scroll amount as an additional scroll amount, and upon receiving touch operation performed on the forward key via the touch panel before the movement amount of the predefined image reaches the set scroll amount, adds the additional scroll amount to the set scroll amount to change the set scroll amount and causes the display device to scroll the image until the movement amount of the predefined image reaches the scroll amount having been changed. ## Claims ### Claim 1 An information processor comprising: a display device; a touch panel; a storage device; and a control device including a processor, and as a result of execution of a control program by the processor, functioning as a controller causing the display device to display, in a predefined region, a portion in a predefined direction of a predefined image as a display portion and also to display: a forward key configured to input an instruction for displaying, in the predefined region, a forward image portion being located on a side of a first direction directed more closely to one end side of the predefined direction than the display portion and continuing to the display portion in the predefined image; and a return key configured to input an instruction for displaying, in the predefined region, a return image portion being located on a side of a second direction directed more closely to another end side of the predefined direction than the display portion and continuing to the display portion in the predefined image, causing the display device to, upon receiving slide operation performed on the display portion via the touch panel, scroll the predefined image in the predefined direction toward a direction of the slide operation until a movement amount of the predefined image from a time point at which the slide operation was received reaches a scroll amount set in accordance with an attribute of the slide operation and causing the storage device to store the set scroll amount as an additional scroll amount, and upon receiving touch operation performed on the forward key via the touch panel before the movement amount of the predefined image from the time point at which the slide operation was received reaches the set scroll amount, adding the additional scroll amount to the set scroll amount to change the set scroll amount and causing the display device to scroll the predefined image in the predefined direction toward the first direction until the movement amount of the predefined image from the time point at which the slide operation was received reaches the scroll amount having been changed. ### Claim 2 (depends on 1) The information processor according to claim 1, wherein upon receiving touch operation performed on the return key via the touch panel before the movement amount of the predefined image from the time point at which the slide operation was received reaches the set scroll amount, the controller subtracts the additional scroll amount from the set scroll amount to change the set scroll amount and causes the display device to scroll the predefined image in the predefined direction toward the second direction until the movement amount of the predefined image from the time point at which the slide operation was received reaches the scroll amount having been changed. ### Claim 3 (depends on 1) The information processor according to claim 1, wherein the controller causes the display device to scroll the predefined image at scroll speed set in accordance with the attribute of the slide operation. ### Claim 4 (depends on 1) The information processor according to claim 1, wherein the controller causes the display device to display the forward key and the return key in a predefined first display mode when not causing the display device to scroll the predefined image, and causes the display device to display the forward key and the return key in a second display mode different from the first display mode when causing the display device to scroll the predefined image. ### Claim 5 (depends on 4) The information processor according to claim 4, wherein the controller causes the display device to display the forward key and the return key in a predefined first color when not causing the display device to scroll the predefined image, and causes the display device to display the forward key and the return key in a second color different from the first color when causing the display device to scroll the predefined image. ### Claim 6 (depends on 4) The information processor according to claim 4, wherein the controller causes the display device to display the forward key and the return key with a predefined first size when not causing the display device to scroll the predefined image, and causes the display device to display the forward key and the return key with a second size different from the first size when causing the display device to scroll the predefined image.