Abstract: An electronic device includes a first speaker for generating a first sound wave; a first chamber coupled to a first side of the first speaker for outputting the first sound wave generated by the first speaker; a second chamber coupled to a second side of the first speaker; a functional device in the second chamber including at least one functional device that generates heat during operation; and a hollow duct located in the second chamber for transporting air from the second chamber to an outlet of the hollow duct, dissipating heat generated by the functional device.

Abstract: Computerized systems, methods, and other embodiments associated with generating virtual map tiles according to an ad hoc specification are described. In one embodiment, a method includes defining, in response to receiving a request through an interface of a map server, virtual map tiles according to an ad hoc specification. The ad hoc specification indicates characteristics of the virtual map tiles including at least a format and map content of the virtual map tiles. The method includes computing the virtual map tiles from at least the map content specified by the ad hoc specification and according to the format indicated by the ad hoc specification. Computing the virtual map tiles includes computing the virtual map tiles in response to receiving the request. The method includes transmitting the virtual map tiles to a client device to cause the viewable region of the electronic map to be displayed on the client device.

Abstract: The present disclosure discloses an IP address based URL filtering method, the method comprising: sniffing a network access request message for accessing a URL; querying an IP address filtering library, to determine whether a destination IP address of the network access request message exists in the IP address filtering library; and in response a query result indicating that the destination IP address exists in the IP address filtering library, discarding the network access request message.

Abstract: Systems, methods, and other embodiments associated with automatically updating a map cache are described. In one embodiment, a method includes detecting a modification to a spatial database record having a geometry attribute and recording, in a log table, an identifier for the record that was modified. The method includes periodically accessing the log table to identify map tiles that include at least one geometry of records that have been modified and periodically generating the identified map tiles. The generated map tiles are stored in a map cache.

Abstract: The present disclosure provides an electronic device. The electronic device includes a first speaker for generating a first sound wave; a first chamber coupled to a first side of the first speaker for outputting the first sound wave generated by the first speaker; a second chamber coupled to a second side of the first speaker; a functional device in the second chamber including at least one functional device that generates heat during operation; and a hollow duct located in the second chamber for transporting air from the second chamber to an outlet of the hollow duct, dissipating heat generated by the functional device.

Abstract: Computerized systems, methods, and other embodiments associated with generating virtual map tiles according to an ad hoc specification are described. In one embodiment, a method includes defining, in response to receiving a request through an interface of a map server, virtual map tiles according to an ad hoc specification. The ad hoc specification indicates characteristics of the virtual map tiles including at least a format and map content of the virtual map tiles. The method includes computing the virtual map tiles from at least the map content specified by the ad hoc specification and according to the format indicated by the ad hoc specification. Computing the virtual map tiles includes computing the virtual map tiles in response to receiving the request. The method includes transmitting the virtual map tiles to a client device to cause the viewable region of the electronic map to be displayed on the client device.

Abstract: Systems, methods, and other embodiments associated with automatically updating a map cache are described. In one embodiment, a method includes detecting a modification to a spatial database record having a geometry attribute and recording, in a log table, an identifier for the record that was modified. The method includes periodically accessing the log table to identify map tiles that include at least one geometry of records that have been modified and periodically generating the identified map tiles. The generated map tiles are stored in a map cache.

Abstract: The invention discloses a camera device that contains an image capture module for capturing image data including a user; an information processing module for obtaining human face image data from the image data, and obtaining a distance information between a human face corresponding to the human face image data and the camera device according to the human face image data; a decision module for determining whether the distance corresponding to said distance information is less than a predetermined value, and generating a prompt information while the distance corresponding to said distance information is less than a predetermined value; and a prompt output module for outputting said prompt information based on said distance information, said prompt information is configured to give a prompt to said user. The invention also discloses an information prompt method.

Abstract: The invention discloses a camera device, comprising: an image capture module for capturing image data including a user; an information processing module for obtaining human face image data from the image data, and obtaining a distance information between a human face corresponding to the human face image data and the camera device according to the human face image data; a decision module for determining whether the distance corresponding to said distance information is less than a predetermined value, and generating a prompt information while the distance corresponding to said distance information is less than a predetermined value; and a prompt output module for outputting said prompt information based on said distance information, said prompt information is configured to give a prompt to said user. The invention also discloses an information prompt method.