Abstract: The present application is directed to a mounting system for a base station antenna. The system includes a passive antenna and an active antenna module and a mounting kit. The mounting kit includes an upper radio mounting bracket assembly and a lower radio mounting bracket assembly, and is configured to mount and secure an upper portion of the passive antenna to a mounting structure and mount and secure the active antenna module to the mounting structure behind the passive antenna. The system further includes a middle antenna mounting bracket assembly configured to pivotably mount a middle portion of the passive antenna to the mounting structure and a lower antenna mounting bracket assembly configured to slidably and/or pivotably mount a lower portion of the passive antenna to the mounting structure. The mounting system is configured to adjust the base station antenna downwardly or upwardly to a desired angle of tilt. Mounting kits and methods of operating same are also described herein.

Abstract: A base station antenna includes a plurality of pairs of RF ports, a tubular reflector, a plurality of columns of first frequency band radiating elements that are mounted to extend outwardly from the tubular reflector, the columns extending around a periphery of the tubular reflector and grouped into a plurality of column groups, where each column group includes at least three columns, and a plurality of feed networks, where each feed network connects one of the pairs of RF ports to a respective one of the column groups.

Abstract: The present method comprises: obtaining a texture of one or more 2D application interfaces to be displayed; determining a virtual reality scene to be displayed, and writing the virtual reality scene into a frame buffer of an Android system in a left-right screen splitting mode using an OpenGL function; sketching contents in the frame buffer of the Android system onto left and right screens of the virtual reality device respectively to form a virtual screen in the virtual reality scene; sketching the obtained texture of the one or more 2D application interfaces to be displayed onto the virtual screen in the virtual reality scene of the left and right screens, respectively. The method renders the 2D application interface as images in left and right eyes simultaneously, with a three-dimensional sense, and facilitates the use of a large number of existing Android applications in the virtual reality system.

Abstract: The present invention discloses an image correction method for an adjustable virtual reality helmet. The method comprises the steps of: pre-storing in the helmet a corresponding relation table between a configuration parameter and an image correction parameter and an image correction formula of the helmet; acquiring a real-time configuration parameter of the helmet; searching in the corresponding relation table an image correction parameter corresponding to a configuration parameter closest to the real-time configuration parameter; and performing image correction by calling the image correction formula based on a searched image correction parameter. The present invention also provides an image correction system for an adjustable virtual reality helmet. The present invention can provide better image correction effects for an adjustable virtual reality helmet.

Abstract: The present invention discloses a network-based video type identification method and system, a client, a server and an electronic device. In the present invention, a client generates a video identification code for a local video, and sends a request querying about a type of the video to a server; the server queries about a video type in a database based on the video identification code and returns a query result; the client sets the video type based on the query result; the client judges whether playing of the video reaches a predetermined duration; if the predetermined duration is reached, the client sends a video type report carrying the video identification code to the server; and the server updates the video type in the database based on the video type report. This invention provides a network-based video type identification technique with high identification accuracy.

Abstract: A method for recognizing an application type, includes, but is not limited to, judging whether an application in a system has an application type mark. If so, acquiring a value of the application type mark of the application, and comparing the value of the application type mark with a preset value of each application type to recognize a type of the application. The application type mark refers to metadata that can indicate the type of the application that was added into a list configuration file of the application when the application was being developed. If not, acquiring an application package name of the application, and recognizing the type of the application according to the application package name. By applying the mark, the system can automatically judge whether the current application is a Virtual Reality (VR) application or an ordinary 2D application, thereby performing appropriate output processing, and brining better user experience.

Abstract: The present disclosure discloses a video conversion method, apparatus and system. The apparatus comprises: a video input controller, a main controller, and a video output controller; the video input controller is configured to establish a data connection with a video source; the video output controller is configured to establish a data connection with an intelligent terminal; and the main controller is configured to control the video input controller to acquire a video stream transmitted from the video source; control the video input controller to perform a format conversion operation on the video stream in a preset video display format; and control the video output controller to output a converted video stream to the intelligent terminal which displays the converted video stream. The technical solutions provided by the present disclosure can solve the problem that the existed intelligent terminal such as a cellular phone cannot run the virtual reality applications well due to the restricted performance.

Abstract: Embodiments of the present disclosure disclose a head-wearable apparatus, a 3D video call system and a method for implementing 3D video call. The present disclosure relates to virtual reality technologies and is invented to relatively completely shoot video images of the scenario where the user locates, achieve real-time 3D video call between users of both parties, and mutually share scenes viewed by themselves. The head-wearable apparatus comprises at least two cameras which are spaced apart from each other and arranged on the head fixing means and/or the video output unit, and field of vision of the at least two cameras superimposes and covers all positions in a horizontal direction.

Abstract: A method for shortening image delay includes, but is not limited to refreshing a current frame image from a frame buffer area to the display screen from top to bottom, and notifying an application to draw next frame image when the current frame image is refreshed to a predetermined row. The method further includes updating content in predetermined rows from top of next frame image drawn by the application to the frame buffer area of the system, and replacing content in the predetermined rows of the current frame image that have already been displayed The method further includes updating the content in the remaining rows of next frame image drawn by the application to the frame buffer area, and replacing content in the remaining rows of the current frame image that have already been displayed.

Abstract: The present method comprises: obtaining a texture of one or more 2D application interfaces to be displayed; determining a virtual reality scene to be displayed, and writing the virtual reality scene into a frame buffer of an Android system in a left-right screen splitting mode using an OpenGL function; sketching contents in the frame buffer of the Android system onto left and right screens of the virtual reality device respectively to form a virtual screen in the virtual reality scene; sketching the obtained texture of the one or more 2D application interfaces to be displayed onto the virtual screen in the virtual reality scene of the left and right screens, respectively. The method renders the 2D application interface as images in left and right eyes simultaneously, with a three-dimensional sense, and facilitates the use of a large number of existing Android applications in the virtual reality system.

Abstract: A method for recognizing an application type, includes, but is not limited to, judging whether an application in a system has an application type mark. If so, acquiring a value of the application type mark of the application, and comparing the value of the application type mark with a preset value of each application type to recognize a type of the application. The application type mark refers to metadata that can indicate the type of the application that was added into a list configuration file of the application when the application was being developed. If not, acquiring an application package name of the application, and recognizing the type of the application according to the application package name. By applying the mark, the system can automatically judge whether the current application is a Virtual Reality (VR) application or an ordinary 2D application, thereby performing appropriate output processing, and brining better user experience.

Abstract: A method for shortening image delay includes, but is not limited to refreshing a current frame image from a frame buffer area to the display screen from top to bottom, and notifying an application to draw next frame image when the current frame image is refreshed to a predetermined row. The method further includes updating content in predetermined rows from top of next frame image drawn by the application to the frame buffer area of the system, and replacing content in the predetermined rows of the current frame image that have already been displayed The method further includes updating the content in the remaining rows of next frame image drawn by the application to the frame buffer area, and replacing content in the remaining rows of the current frame image that have already been displayed.

Abstract: An information processing method and an apparatus thereof are provided, which are applicable to a head-mounted device with a display unit. The information processing method includes: determining a virtual vision area for a user in a case that the user wears the head-mounted device; searching an environment space for a first object which is located in the virtual vision area and satisfies a predetermined condition; determining a first display area of the display unit which matches the first object; and outputting first display content in the first display area, such that when the user watches the display unit, the user sees that the first display content is presented on the first object in the virtual vision area. Display effect of the head-mounted device is improved according to the embodiments of the disclosure.

Abstract: The present disclosure discloses a video conversion method, apparatus and system. The apparatus comprises: a video input controller, a main controller, and a video output controller; the video input controller is configured to establish a data connection with a video source; the video output controller is configured to establish a data connection with an intelligent terminal; and the main controller is configured to control the video input controller to acquire a video stream transmitted from the video source; control the video input controller to perform a format conversion operation on the video stream in a preset video display format; and control the video output controller to output a converted video stream to the intelligent terminal which displays the converted video stream. The technical solutions provided by the present disclosure can solve the problem that the existed intelligent terminal such as a cellular phone cannot run the virtual reality applications well due to the restricted performance.

Abstract: Embodiments of the present disclosure disclose a head-wearable apparatus, a 3D video call system and a method for implementing 3D video call. The present disclosure relates to virtual reality technologies and is invented to relatively completely shoot video images of the scenario where the user locates, achieve real-time 3D video call between users of both parties, and mutually share scenes viewed by themselves. The head-wearable apparatus comprises at least two cameras which are spaced apart from each other and arranged on the head fixing means and/or the video output unit, and field of vision of the at least two cameras superimposes and covers all positions in a horizontal direction.

Abstract: The present invention discloses a network-based video type identification method and system, a client, a server and an electronic device. In the present invention, a client generates a video identification code for a local video, and sends a request querying about a type of the video to a server; the server queries about a video type in a database based on the video identification code and returns a query result; the client sets the video type based on the query result; the client judges whether playing of the video reaches a predetermined duration; if the predetermined duration is reached, the client sends a video type report carrying the video identification code to the server; and the server updates the video type in the database based on the video type report. This invention provides a network-based video type identification technique with high identification accuracy.

Abstract: The present invention discloses an image correction method for an adjustable virtual reality helmet. The method comprises the steps of: pre-storing in the helmet a corresponding relation table between a configuration parameter and an image correction parameter and an image correction formula of the helmet; acquiring a real-time configuration parameter of the helmet; searching in the corresponding relation table an image correction parameter corresponding to a configuration parameter closest to the real-time configuration parameter; and performing image correction by calling the image correction formula based on a searched image correction parameter. The present invention also provides an image correction system for an adjustable virtual reality helmet. The present invention can provide better image correction effects for an adjustable virtual reality helmet.

Abstract: An information processing method and an apparatus thereof are provided, which are applicable to a head-mounted device with a display unit. The information processing method includes: determining a virtual vision area for a user in a case that the user wears the head-mounted device; searching an environment space for a first object which is located in the virtual vision area and satisfies a predetermined condition; determining a first display area of the display unit which matches the first object; and outputting first display content in the first display area, such that when the user watches the display unit, the user sees that the first display content is presented on the first object in the virtual vision area. Display effect of the head-mounted device is improved according to the embodiments of the disclosure.

Abstract: An information processing method is disclosed. The method comprises determining whether a head-mounted electronic device has changed from a first position to a second position, wherein the head-mounted electronic device comprises an image capture unit and a display unit for displaying a virtual scene; and capturing an image of an environment where a user of the head-mounted electronic device is located by using the image capture unit of the head-mounted electronic device and displaying the image, or a part thereof, via the display unit of the head-mounted electronic device for viewing by the user. Also disclosed is an information processing method and an electronic device.