# US 2016/0259486 A1 · Display apparatus and control method for display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0259486 A1 - Document ID: US20160259486A1 - Status: Published application - Kind: A1 - Application number: 15/056,093 - Filed: 2016-02-29 - Published: 2016-09-08 - Earliest claimed: 2015-03-05 - Assignees: Seiko Epson Corporation - Applicants: Seiko Epson Corporation - Inventors: Toshiki FUJIMORI - Web page: https://patentgrep.com/patent/US20160259486A1 ## CPC - G06F 3/0425: {using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected (tracking a projected light spot to determine a position on a display surface G06F3/0386)} - G06F 3/017: {Gesture based interaction, e.g. based on a set of recognized hand gestures (interaction based on gestures traced on a digitiser G06F3/04883)} - G06F 3/0346: with detection of the device orientation or free movement in a three-dimensional [3D] space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors - G06F 3/03542: {Light pens for emitting or receiving light} - G06F 3/03545: {Pens or stylus} - G06F 3/038: Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry - G06F 3/0416: {Control or interface arrangements specially adapted for digitisers} - 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 A projector includes a determining unit configured to determine whether the distance between an operation device and a distance measuring unit configured to measure a distance to the operation device is a first threshold or less, a switching unit configured to switch, when a mode of the projector is a first mode, the mode from the first mode to a second mode when it is determined that the distance between the operation device and the distance measuring unit is the first threshold or less, a detecting unit configured to detect the position indicated by the operation device, and a processing unit configured to, when indication of a first position on the screen is detected, perform first processing corresponding to the first position when the mode is the first mode and perform second processing different from the first processing corresponding to the first position when the mode is the second mode. ## Claims ### Claim 1 A display apparatus that displays an image on a display surface, the display apparatus comprising: a determining unit configured to determine whether a distance between an indicator for indicating a position on the display surface and a distance measuring unit configured to measure a distance to the indicator is a first threshold or less; a switching unit configured to switch, when a mode of the display apparatus is a first mode, the mode from the first mode to a second mode when it is determined that the distance between the indicator and the distance measuring unit is the first threshold or less; a detecting unit configured to detect the position on the display surface indicated by the indicator; and a processing unit configured to, when indication of a first position on the display surface is detected, perform first processing corresponding to the first position when the mode is the first mode and perform second processing different from the first processing corresponding to the first position when the mode is the second mode. ### Claim 2 (depends on 1) The display apparatus according to claim 1, wherein the switching unit switches the mode from the first mode to the second mode when the distance between the indicator and the distance measuring unit continues to be determined as the first threshold or less for a predetermined time or more. ### Claim 3 (depends on 1) The display apparatus according to claim 1, wherein the switching unit performs, when a posture of the indicator is a first posture, the switching of the mode from the first mode to the second mode at time when it is determined that the distance between the indicator and the distance measuring unit is the first threshold or less and does not perform, when the posture of the indicator is a second posture different from the first posture, the switching of the mode from the first mode to the second mode at time when it is determined that the the distance between the indicator and the distance measuring unit is the first threshold or less. ### Claim 4 (depends on 3) The display apparatus according to claim 3, further comprising: a projecting unit configured to project the image on a projection surface wherein the display surface is the projection surface on which the image is projected, and the first posture is a posture in which the indicator faces a direction of the projecting unit. ### Claim 5 (depends on 1) The display apparatus according to claim 1, wherein, when a distance between the indicator and the display surface is a second threshold or less, the switching unit does not switch the mode from the first mode to the second mode. ### Claim 6 (depends on 1) The display apparatus according to claim 1, further comprising a notifying unit configured to notify a user that the mode is switched from the first mode to the second mode. ### Claim 7 (depends on 1) The display apparatus according to claim 1, wherein, when a plurality of the indicators including a first indicator and a second indicator different from the first indicator are used, when it is determined that the distance between the first indicator and the distance measuring unit is the first threshold or less, the switching unit switches the mode from the first mode to the second mode and does not perform the switching of the mode from the first mode to the second mode due to the determination that the distance between the second indicator and the distance measuring unit is the first threshold or less. ### Claim 8 (depends on 1) The display apparatus according to claim 1, wherein a plurality of the indicators exist, and the switching unit specifies the first threshold for each individual of the indicators. ### Claim 9 A control method for a display apparatus that displays an image on a display surface, the control method comprising: determining whether a distance between an indicator for indicating a position on the display surface and a distance measuring unit configured to measure a distance to the indicator is a first threshold or less; switching, when a mode of the display apparatus is a first mode, the mode from the first mode to a second mode when it is determined that the distance between the indicator and the distance measuring unit is the first threshold or less; detecting the position on the display surface indicated by the indicator; and when indication of a first position on the display surface is detected, performing first processing corresponding to the first position when the mode is the first mode and performing second processing different from the first processing corresponding to the first position when the mode is the second mode.