Abstract: An optical lens accessory for wide-angle photography is provided. The optical lens accessory includes: an optical device having a wide-angle lens. The optical device is configured to frame a view with a range of viewing angle greater than a range of viewing angle of the camera device and let framed light into the camera device; a housing device positioned outside the optical device and causing no interference to the range of viewing angle of the wide-angle lens, the housing device is configured to support the optical device, and to isolate the framed light from external stray light, thereby preventing the external stray light from interfering with an optical path of the framed light; and a fixture device configured to attach the optical lens accessory to the camera device of the terminal device while causing no interference to the range of viewing angle of the wide-angle lens.

Abstract: A method of creating a communication group based on wearable devices, and such a wearable device are disclosed. The method includes: acquiring the position information of the current wearable device and of the nearby wearable devices; calculating the distances of these nearby wearable devices from the current wearable device based on the position information; building up, by the current wearable device, communication connections with the nearby wearable devices that satisfy the preset conditions and thus creating the communication group. According to the disclosure, the current wearable device can automatically build up a communication group with the nearby wearable devices that satisfy the preset distance requirements, such that a user can expand his friendship circle.

Abstract: An optical lens accessory used in conjunction with a terminal device equipped with two camera devices is provided, the optical lens accessory includes: an optical device including two fisheye lenses arranged in a back-to-back configuration, where directions of the two respective viewing angles associated with the two fisheye lenses are opposite to each other, and where viewing angle of each of the fisheye lenses is greater than 180° to allow each of the two fisheye lenses to independently frame a view in the respective direction of the respective viewing angle, to let the framed lights into the two camera devices; a housing device positioned outside the optical device, where the housing device is configured to support the optical device, and to isolate the framed lights from external stray light; and a fixture device configured to attach the optical lens accessory to the terminal device.

Abstract: A method and a system for quickly starting a camera based on eyeprint recognition may include storing a camera initialization procedure for a power-up initializing camera of a mobile terminal in a singleton pattern class of the camera, and detecting whether the screen of the mobile terminal is illuminated or not; when it is detected that the mobile terminal screen is illuminated, directly acquiring the camera initialization procedure in the singleton pattern class to complete the power-up initializing of the camera, directly displaying an image captured by the camera while starting eyeprint recognition software, and acquiring a user's eye image to complete eyeprint unlocking.

Abstract: A method for data sharing is provided. The method includes: searching, by a first terminal, for multiple nearby terminals, and establishing wireless connections with the discovered nearby terminals, displaying on the display interface of the first terminal the nearby terminals already wirelessly connected to the first terminal and a transmittable file stored in the first terminal or the nearby terminals, and receiving by the first terminal a file-transmission command and transmitting or receiving a file to or from the nearby terminals. A system for data sharing is also provided. By the above means, operations based on the present disclosure are simple and fast, enabling interconnections of mobile terminals within a close range, a mobile terminal can transmit a file synchronously to multiple terminals for data transmission, and the terminals can share data therebetween, which thus profoundly enhances the user experience.

Abstract: A handheld terminal, a computer and a visible light communication system are disclosed. In the handheld terminal, a first backlight apparatus is disposed on a display screen of the handheld terminal, a first data processing apparatus accesses data from a first data storage apparatus and converts the data to multiple luminance level control signals that are used to control the luminance level of the first backlight apparatus, a first control apparatus controls the first backlight apparatus to adjust its current luminance based on the multiple luminance level control signals, and the first backlight apparatus changes its luminance in accordance with the change of the data and, as a result, transmits the data to the computer in the form of visible light. Thus, the present disclosure eliminates the need of cumbersome physical connection ports and intermediate connection cables, and enables stable, reliable and highly secure visible light communications.

Abstract: A method of creating a communication group based on wearable devices, and such a wearable device are disclosed. The method includes: acquiring the position information of the current wearable device and of the nearby wearable devices; calculating the distances of these nearby wearable devices from the current wearable device based on the position information; building up, by the current wearable device, communication connections with the nearby wearable devices that satisfy the preset conditions and thus creating the communication group. According to the disclosure, the current wearable device can automatically build up a communication group with the nearby wearable devices that satisfy the preset distance requirements, such that a user can expand his friendship circle.

Abstract: A smart terminal information display method and a smart terminal, the smart terminal information display method may include a smart terminal detecting an inputted locking event to lock its screen, responding to the locking event and displaying the information containing a list of specific functions on the screen, and entering the locking screen interface. Embodiments enable a user to easily acquire new function information of the smart terminal and improves the user experience, but also makes a full use of the locking screen background of the smart terminal and expands the functions of the smart terminal, thereby further improving the user experience.

Abstract: A method and system for file synchronization may include sending, by a first device, a file synchronization request to a server; receiving, by the server, the file synchronization request from the first device; determining, according to first file synchronization information and at least one piece of second fine synchronization information, the latest state information of the file to be synchronized among the first state information and the at least one piece of second state information; sending the latest state information of the file to be synchronized to the first device; receiving, by the first device, the latest state information of the file to be synchronized sent by the server; and performing synchronization operations on the file according to the latest state information of the file to be synchronized. In such a way, the present invention can allow a file to be synchronously used between different devices.

Abstract: A combined type accessory for communications connection with a mobile terminal may include a power supply module, a control module and a function module. The control module and the power supply module can be detachably connected. The function module and the control module can be detachably connected. The power supply module can supply power to the control module and the function module, and the mobile terminal can be in communications connection with the control module so as to control the function module. Embodiments of the present invention further provide a combined type accessory system. The combined type accessory system and the combined type accessory can form various accessories through a variety of combinations, provide abundant applications of the mobile terminal, and result in convenience for people's life.

Abstract: A method for data sharing is provided. The method includes: searching, by a first terminal, for multiple nearby terminals, and establishing wireless connections with the discovered nearby terminals, displaying on the display interface of the first terminal the nearby terminals already wirelessly connected to the first terminal and a transmittable file stored in the first terminal or the nearby terminals, and receiving by the first terminal a file-transmission command and transmitting or receiving a file to or from the nearby terminals. A system for data sharing is also provided. By the above means, operations based on the present disclosure are simple and fast, enabling interconnections of mobile terminals within a close range, a mobile terminal can transmit a file synchronously to multiple terminals for data transmission, and the terminals can share data therebetween, which thus profoundly enhances the user experience.

Abstract: A method and a smart terminal for rotating a picture are disclosed. The method includes steps of: detecting, by the smart terminal, that a touch operation applied on the picture displayed on a screen of the smart terminal includes at least two touch points, and, when a trajectory of each of the at least two touch points is an arc, determining the touch operation to be an operation of rotating the picture, and rotating synchronously the picture in accordance with the rotation direction of the trajectories and the rotation angle. By the aforementioned means, in the present disclosure the picture can be quickly rotated to the desired angle of the user, thereby enhancing the user experience.