Abstract: An optical element driving mechanism is provided and includes a fixed assembly, a movable assembly, a driving assembly and a stopping assembly. The fixed assembly has a main axis. The movable assembly is configured to connect an optical element, and the movable assembly is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The stopping assembly is configured to limit the movement of the movable assembly relative to the fixed assembly within a range of motion.

Abstract: The present disclosure provides an operation method of a smart speaker. The method includes steps as follows. The linked settings among voiceprint registration data, user information and a cast setting of a user device are preloaded by the smart speaker. Wake-up words are received to set an operation mode of the smart speaker and to generate a voiceprint recognition result. In the operation mode, after receiving voice, the voice is converted into voice text and the voiceprint recognition result is compared to voiceprint registration data. When the voiceprint recognition result matches the voiceprint registration data, the user information and the voice text are transmitted to a cloud server, so that the cloud server returns the response message to the smart speaker. According to the cast setting, the response message is sent to the user device.

Abstract: The present disclosure provides a video image composition method including the following steps. A priority level list is obtained, and the priority level list includes multiple priority levels of multiple person identities. Multiple video streams are received. Multiple identity labels corresponding to human face frame images from the video streams are determined. The multiple display levels of the human face frame images are determined according to the identity labels and priority level list. A part of the human face frame images being in speaking status are detected. At least one of the part of the human face frame images being in speaking status is constituted as a main display area of a video image, according to the display levels.

Abstract: A display device is disclosed. The display device includes a display panel, a backlight module, and a processor. The display panel displays a display screen. The backlight module provides a backlight brightness to the display panel. The processor generates the display screen and determines the backlight brightness corresponding to the display screen. The processor dynamically adjusts a size and a position of several display areas on the display screen based on an instant state of the continuous image signal respectively. The processor determines several backlight areas corresponding to several display areas respectively, and the processor generates several backlight control signals corresponding to several backlight areas respectively based on the display setting and several image contents.

Abstract: The present invention provides a method for driving personal input device. The method is executed by a display. The display is connected with a personal input device. A first processing unit of the display drives the personal input device. The display receives a first event message from the personal input device. The first processing unit processes the event message to give a first event parameter, and updates the status of a cursor in a display picture according to the first event parameter. In addition, the first processing unit processes the first event message to generate a second event message, and transmits the second event message to an electronic device via a display data channel/command interface (DDC/CI).

Abstract: The present invention provides a method for driving personal input device. The method is executed by a display. The display is connected with a personal input device. A first processing unit of the display drives the personal input device. The display receives a first event message from the personal input device. The first processing unit processes the event message to give a first event parameter, and updates the status of a cursor in a display picture according to the first event parameter. In addition, the first processing unit processes the first event message to generate a second event message, and transmits the second event message to an electronic device via a display data channel/command interface (DDC/CI).

Abstract: A virtual reality device and the operation method of virtual reality device, and the method includes: the virtual reality device displays an image content according to a corresponding viewing angle of a user; and when the time of virtual reality device detects that the viewing elevation angle is greater than a predetermined angle for a time period which exceeds a predetermined time period, the virtual reality device enters a locking mode; in the locking mode, the virtual reality device displays the image content with a fixed main field, and the virtual reality device constrains the viewing angle of the image content from the movement or rotation of the user. The present invention can determine whether to enter the locking mode according to a preset condition, and provide the main image content of the fixed field of view in the locking mode in order to achieve user convenience and save power.

Abstract: A video recommending system includes a virtual reality device and a server. The virtual reality device includes a brainwave sensor and a processor. The brainwave sensor is configured to acquire a first brainwave data. The processor is coupled to the brainwave sensor, and is configured to receive the first brainwave data. The server is coupled to the virtual reality device. The server is configured to generate a recommending list according to a first emotion data corresponding to the first brainwave data, and to transmit the recommending list to the virtual reality device, wherein the recommending list includes a plurality of video lists for the virtual reality device to play at least one video of the video lists.

Abstract: A video recommending system includes a virtual reality device and a server. The virtual reality device includes a brainwave sensor and a processor. The brainwave sensor is configured to acquire a first brainwave data. The processor is coupled to the brainwave sensor, and is configured to receive the first brainwave data. The server is coupled to the virtual reality device. The server is configured to generate a recommending list according to a first emotion data corresponding to the first brainwave data, and to transmit the recommending list to the virtual reality device, wherein the recommending list includes a plurality of video lists for the virtual reality device to play at least one video of the video lists.

Abstract: The present disclosure provides an operation method of a smart speaker. The method includes steps as follows. The linked settings among voiceprint registration data, user information and a cast setting of a user device are preloaded by the smart speaker. Wake-up words are received to set an operation mode of the smart speaker and to generate a voiceprint recognition result. In the operation mode, after receiving voice, the voice is converted into voice text and the voiceprint recognition result is compared to voiceprint registration data. When the voiceprint recognition result matches the voiceprint registration data, the user information and the voice text are transmitted to a cloud server, so that the cloud server returns the response message to the smart speaker. According to the cast setting, the response message is sent to the user device.

Abstract: A virtual reality device and the operation method of virtual reality device, and the method includes: the virtual reality device displays an image content according to a corresponding viewing angle of a user; and when the time of virtual reality device detects that the viewing elevation angle is greater than a predetermined angle for a time period which exceeds a predetermined time period, the virtual reality device enters a locking mode; in the locking mode, the virtual reality device displays the image content with a fixed main field, and the virtual reality device constrains the viewing angle of the image content from the movement or rotation of the user. The present invention can determine whether to enter the locking mode according to a preset condition, and provide the main image content of the fixed field of view in the locking mode in order to achieve user convenience and save power.