Abstract: A wearable device includes a main body and a band body. The opposite sides of the main body are provided with a tail portion and a hook portion, respectively. An open groove is provided between the hook portion and other parts of the main body. One end of the band body is connected to the tail portion. The band body enters the open groove from an open side of the open groove and is folded back around the hook portion. The other end of the band body is fixed to a part of the band body, so that the band body is coupled to the hook portion, and the band body is adapted to fix the main body to a subject.

Abstract: A wearable device includes a main body and a coupling member. The main body has a tail portion and a hook portion at two opposite sides respectively. One end of the coupling member is connected to the tail portion. A buckle hole of another end of the coupling member is for sleeving onto the hook portion to fix the main body to a subject.

Abstract: A head-mounted display device includes a main body and a supporter. The main body has a connection portion. The supporter is pivotally connected to the connection portion by taking an axis as a rotation axis. There is a first gap between the supporter and the connection portion on one side away from a user's head. A width of the first gap remains constant during rotation of the supporter relative to the connection portion.

Abstract: A display apparatus is provided. The display apparatus includes a graphic processing unit, a display driver, and a display panel. The graphic processing unit is configured to provide a first image. The display driver is configured to correct an optical aberration of the first image to generate a second image. The display panel is configured to display the second image.

Abstract: The embodiments of the disclosure provide a method for transmitting reduced depth information and an electronic device. The method includes: obtaining a first depth map of an image frame, wherein the first depth map includes a plurality of first depth pixels corresponding to multiple image pixels in the image frame; downscaling the first depth map as a second depth map, wherein the second depth map includes multiple second depth pixels, and each second depth pixel has a depth value; adjusting the second depth map as a third depth map by scaling up the depth value of each second depth pixel based on a specific ratio; dividing the third depth map into multiple fourth depth maps; appending the fourth depth maps to the image frame; encoding the image frame appended with the fourth depth maps; and transmitting the encoded image frame to a client device.

Abstract: An image sensing device, including multiple lens groups, a connector, at least one antenna element, and multiple image sensing elements, is provided. Each lens group includes multiple lens elements arranged along an optical axis from a first side. The connector includes multiple first parts and multiple second parts. The second parts are connected between the first parts. The antenna elements are respectively disposed on the first parts and are configured to provide multiple sensing beams to a target area toward the first side. The image sensing elements are respectively disposed on a side of the lens groups facing a second side and are configured to sense a reflected light beam of the target area. The direction of the second side is opposite to the direction of the first side.

Abstract: The embodiments of the disclosure provide a method for pose correction and a host. The method includes: obtaining a first image; in response to determining that a first reference object of at least one reference object exists in the first image, determining a first relative position between the host and the first reference object; obtaining a first reference pose based on the first relative position; and correcting a pose of the host based on the first reference pose.

Abstract: A head-mounted display device includes a display, a lens group and an actuator. The display is used for generating an image light beam. The lens group is disposed between the display and a target area and is adapted to focus the image light beam to form a display image in the target area. The actuator is coupled to the display or the lens group to periodically move the display or the lens group on a plane.

Abstract: A system with sound adjustment capability is provided. The system includes a head-mounted device, a first loudspeaker and a processor. The first loudspeaker is detachable from the head-mounted device. The processor is configured to detect a plurality of positions and a plurality of orientations of the head-mounted device and the first loudspeaker to determine whether the first loudspeaker is detached from the head-mounted device. The processor is further configured to modify a first audio signal by at least one first filter or at least one second filter to generate a filtered first audio signal. The at least one first filter is used when the first loudspeaker is coupled to the head-mounted device, and the at least one second filter is used when the first loudspeaker is detached from the head-mounted device. The filtered first audio signal is configured to drive the first loudspeaker.

Abstract: A head-mounted display device includes a main body and a first simulator connected to the main body. The first simulator includes multiple nozzles, multiple air channels, a first fan, and multiple regulators. The nozzles face the user's eyes. The first fan is configured to drive external air to flow to the corresponding nozzles through the air channels. The regulators are disposed between the air channels and the corresponding nozzles to independently regulate the flow rates of air jetted from the nozzles.

Abstract: A virtual reality display includes a display module and an optical module. The display module includes a display, a liquid crystal cell, a first phase retarder, and a polarizing directional lens. The optical module includes a transflective lens, a second phase retarder, a reflective polarizer, and a lens element. The liquid crystal cell is located between the display and the first phase retarder, and the polarizing directional lens is located between the first phase retarder and the transflective lens. The transflective lens is located between the polarizing directional lens and the second phase retarder, and the reflective polarizer is located between the second phase retarder and the lens element.

Abstract: A calibration system configured to calibrate a handheld controller is disclosed. The calibration system includes a tracking camera, a displayer and a processing unit. The tracking camera is configured to capture streaming images involving the handheld controller. The displayer is configured to display a calibration test instruction. The processing unit is configured to receive first movement data generated by the handheld controller while the handheld controller moving; receive the streaming images captured by the tracking camera generated while the handheld controller moving; calculate second movement data according to the streaming images; calculate calibration parameters by comparing the first movement data and the second movement data; and, transmit the calibration parameters to the handheld controller. The calibration parameters are utilized by the handheld controller in generating a third movement data.

Abstract: A head-mounted display device includes a front-end assembly, a plurality of support arms, a plurality of counterweight parts and a plurality of brackets. The plurality of support arms are respectively connected to the front-end assembly. The plurality of counterweight parts are respectively slidably arranged to the plurality of support arms and away from the front assembly. The plurality of brackets are respectively connected to the plurality of counterweight parts and used for contacting the head of the user. The brackets are separated from each other. Each of the brackets has an upper part and a lower part. The upper parts of the brackets are adapted to support the upper part of the back of the user's head. The lower parts of the brackets are adapted to support the lower part of the back of the user's head.

Abstract: A head-mounted display device includes a base, a first lens, a second lens, a first shape memory alloy (SMA) element, and a braking element. The first lens and the second lens are movably disposed on the base. The first SMA element is connected between the base and the first lens or connected between the second lens and the first lens, and is used to move the first lens and adjust a distance between the first lens and the second lens. The braking element is disposed on the base. The braking element brakes the first lens at a braking position. The braking element is separated from the first lens at a movable position.

Abstract: A communication device includes a display device, a phase tuning layer, and a mmWave (Millimeter Wave) module. The display device includes a first display portion and a second display portion. The pixel density of the first display portion is greater than that of the second display portion. The phase tuning layer is adjacent to the second display portion. The mmWave module generates a wireless signal. The wireless signal is propagated through the second display portion and the phase tuning layer.

Abstract: A speaker module is adapted to be configured to a wearable device. The speaker module includes an enclosure and a driving unit. The driving unit is used to generate sound. The enclosure contains the driving unit. A sound sum of the sound output from a front opening, a first rear opening and a second rear opening of the enclosure has directivity. The connection vectors and the inverse vector of the connection normal vector defined by these openings are added to form a combined vector. A unit vector of the combination vector and a unit vector of a front normal vector facing outwards of the front opening are added to form a sum vector. The direction of the sum vector is the direction of the sound sum.

Abstract: A virtual reality device is provided. The virtual reality device includes a main body portion, a plurality of first-type antennas, and a plurality of second-type antennas. The main body portion has a first side eyeglass frame, a second side eyeglass frame, and a connection part. The connection part is connected to the first side eyeglass frame and the second side eyeglass frame. The second-type antennas and the corresponding first-type antennas are respectively disposed on a first side of the first side eyeglass frame, on a second side of the second side eyeglass frame, and on the connection part. The first side of the first side eyeglass frame is opposite to the second side of the second side eyeglass frame.

Abstract: A handheld controller is suitable for controlling an electronic device. The handheld controller includes a first body, a second body and a connecting portion. The first body is suitable for being held by a hand of a user. The connecting portion connects the first body and the second body. The second body is electrically connected to the first body through the connecting portion, and the connecting portion is suitable for being clamped between fingers of the user.