Abstract: One embodiment provides an electrical key for locking and unlocking an electrical lock. The electrical key includes an energy-transfer unit that includes a magnetic core and a coil wrapped around the magnetic core, a pulse generator configured to generate a first pulse sequence including alternating pulse on and pulse off cycles and a second pulse sequence comprising a continuous pulse train, and a modulator driver configured to modulate a voltage or current on the coil using the generated first or second pulse sequence, a measurement module configured to measure a current or voltage on the coil excited by the modulated voltage or current, respectively, a key-position determination module configured to determine a relative position between the electrical key and the electrical lock based on the measured current or voltage, and a communication interface for communicating with the electrical lock to facilitate the locking and unlocking of the electrical lock.

Abstract: One embodiment of the present invention provides a smart lock-and-key system. The smart lock-and-key system can include a smart lock corresponding to a lock identifier and a smart key capable of locking and unlocking the smart lock. The smart key can include a first communication interface for communicating with the smart lock and a second communication interface for communicating with a mobile computing device. The smart key can be configured to obtain the lock identifier and receive, from the mobile computing device, an operation command based on the obtained lock identifier.

Abstract: One embodiment of the present invention provides a smart lock-and-key system. The smart lock-and-key system can include a smart lock corresponding to a lock identifier and a smart key capable of locking and unlocking the smart lock. The smart key can include a first communication interface for communicating with the smart lock and a second communication interface for communicating with a mobile computing device. The smart key can be configured to obtain the lock identifier and receive, from the mobile computing device, an operation command based on the obtained lock identifier.

Abstract: One embodiment provides an electrical key for locking and unlocking an electrical lock. The electrical key includes an energy-transfer unit that includes a magnetic core and a coil wrapped around the magnetic core, a pulse generator configured to generate a first pulse sequence including alternating pulse on and pulse off cycles and a second pulse sequence comprising a continuous pulse train, and a modulator driver configured to modulate a voltage or current on the coil using the generated first or second pulse sequence, a measurement module configured to measure a current or voltage on the coil excited by the modulated voltage or current, respectively, a key-position determination module configured to determine a relative position between the electrical key and the electrical lock based on the measured current or voltage, and a communication interface for communicating with the electrical lock to facilitate the locking and unlocking of the electrical lock.

Abstract: One embodiment of the present invention provides a smart lock-and-key system. The smart lock-and-key system can include a smart lock corresponding to a lock identifier and a smart key capable of locking and unlocking the smart lock. The smart key can include a first communication interface for communicating with the smart lock and a second communication interface for communicating with a mobile computing device. The smart key can be configured to obtain the lock identifier and receive, from the mobile computing device, an operation command based on the obtained lock identifier.

Abstract: A method and a mobile terminal for displaying an application with a widget are disclosed. The method includes: monitoring actively by the widget activation of a first application, and acquiring its activation information; monitor actively by the widget deactivation of the first application, and acquiring its deactivation information; acquiring by the widget the latest information of the application when the application is deactivated, and displaying the latest information. The mobile terminal includes a widget module, a supervision unit configured to monitor the activation or deactivation of a first application in the mobile terminal, an acquisition unit configured to acquire the activation or deactivation information generated and transmitted by the supervision module and acquire the latest information of the first application when the deactivation information is acquired, a display unit configured to display the latest information of the first application that is acquired by the acquisition unit.

Abstract: An intelligent collecting and sharing method and a mobile terminal are provided. The method comprises: acquiring a type of a content currently browsed; if a collecting command triggered by the user is received, then classifying the content according to the type of the content currently browsed and storing the critical information of the currently browsed into a local favorites folder according to a save format corresponding to type of the content so that the content can be sorted and collected by the user; if a sharing command triggered by the user is received, then opening the local favorites folder automatically so that the user searches for the content to be shared in the local favorites according to the type, copying and pasting the critical information corresponding to the content to be shared for purpose of sharing.

Abstract: A method for online video playback includes: loading the first video segment corresponding to the lowest class of bit rates from the version of the lowest class of bit rates at an initial playback; and choosing to load and play a video segment corresponding to an appropriate class of bit rates according to the bit rate corresponding to the current network traffic and the resolution supported by a playing terminal after the video has been playing steadily. The method for online video playback can automatically choose to play videos encoded at an appropriate bit rate according to the current internet speed so that the playback is smooth and uninterrupted.

Abstract: The present invention provides a mobile terminal video synchronous sharing method and system, wherein a first mobile terminal receives the pause command, pauses and acquires the information of the pause time of the current video; receives data synchronization command, and transmits the current video, and video to be played and the information of the pause time of the current video to a second mobile terminal; the second mobile terminal receives and continues to play according to the information of the pause time of the video. The present invention shares multimedia files synchronously between a plurality of mobile terminals, thereby increasing the interactivity.

Abstract: A method and system for managing household devices is provided. The method includes: locating by multiple household devices the current position coordinates of a mobile terminal; computing by the multiple household devices their respective distances to the mobile terminal using the current position coordinates of the mobile terminal to obtain multiple pieces of distance information, and transmitting the distance information to a control center; selecting by the mobile terminal the smallest distance based on the distance information, and transmitting feedback information to the household device at the smallest distance; and receiving by the household device the feedback information and thus performing operations of turning on, turning off, or regulating. The present disclosure makes possible an intelligent and humane home management mode without addition of extra chips which thus results in low cost.

Abstract: A method for online video playback includes: loading the first video segment corresponding to the lowest class of bit rates from the version of the lowest class of bit rates at an initial playback; and choosing to load and play a video segment corresponding to an appropriate class of bit rates according to the bit rate corresponding to the current network traffic and the resolution supported by a playing terminal after the video has been playing steadily. The method for online video playback can automatically choose to play videos encoded at an appropriate bit rate according to the current internet speed so that the playback is smooth and uninterrupted.

Abstract: An intelligent collecting and sharing method and a mobile terminal are provided. The method comprises: acquiring a type of a content currently browsed; if a collecting command triggered by the user is received, then classifying the content according to the type of the content currently browsed and storing the critical information of the currently browsed into a local favorites folder according to a save format corresponding to type of the content so that the content can be sorted and collected by the user; if a sharing command triggered by the user is received, then opening the local favorites folder automatically so that the user searches for the content to be shared in the local favorites according to the type, copying and pasting the critical information corresponding to the content to be shared for purpose of sharing.

Abstract: One embodiment of the present invention provides a lock-and-key system for an electrical power plant. The system includes a plurality of locks and a smart key. A respective lock is installed with a standardized lock core, and the lock is associated with a lock identifier (ID). The smart key includes a key head that matches the standardized lock core; a lock-ID detector configured to detect the lock ID; a rotation stopper which, when enabled, is configured to prevent rotation of the key head while the key head is inserted into the standardized lock core; and a control module configured to disable the rotation stopper based on the detected lock ID, thereby facilitating the smart key to unlock the lock by rotating the key head.

Abstract: One embodiment of the present invention provides a lock-and-key system for an electrical power plant. The system includes a plurality of locks and a smart key. A respective lock is installed with a standardized lock core, and the lock is associated with a lock identifier (ID). The smart key includes a key head that matches the standardized lock core; a lock-ID detector configured to detect the lock ID; a rotation stopper which, when enabled, is configured to prevent rotation of the key head while the key head is inserted into the standardized lock core; and a control module configured to disable the rotation stopper based on the detected lock ID, thereby facilitating the smart key to unlock the lock by rotating the key head.