Abstract: A wireless power transmitter can include a wireless power transfer coil designed to magnetically couple with a corresponding coil in a wireless power receiver to facilitate wireless power transfer from the wireless power transmitter to the wireless power receiver, a power converter configured to drive the wireless power transfer coil, and control and communications circuitry coupled to the wireless power transfer coil and the power converter. The control and communications circuitry can be configured to operate the power converter to drive the wireless power transfer coil so as to transfer power to the wireless power receiver in accordance with a negotiated power transfer. Simultaneously during power transfer, the control and communications circuitry can send a polling signal to detect a foreign object including a wireless transponder and reduce or stop wireless power transfer upon receiving a response to the polling signal from a foreign object including a wireless transponder.

Abstract: An electric fireplace includes a shell, where a heating component including a wind turbine and a heating element is disposed in the shell, and further includes a translucent imaging screen, where the imaging screen is vertically disposed at an upper end of the shell, a flame plate that can cast a flame shape is disposed on an upper end surface of the shell, and a light source and a light interference combination that includes a light interference barrel and a motor are disposed below the flame plate. Disposing the imaging screen externally greatly reduces the size of the shell. The present utility model is small in size, convenient in transportation, and unique in model, and can be adapted to a modern decoration style.

Abstract: An electric fireplace includes a shell, where a heating component including a wind turbine and a heating element is disposed in the shell, and further includes a translucent imaging screen, where the imaging screen is vertically disposed at an upper end of the shell, a flame plate that can cast a flame shape is disposed on an upper end surface of the shell, and a light source and a light interference combination that includes a light interference barrel and a motor are disposed below the flame plate. Disposing the imaging screen externally greatly reduces the size of the shell. The present utility model is small in size, convenient in transportation, and unique in model, and can be adapted to a modern decoration style.

Abstract: A method for positioning in a communication network with a cellular coverage is disclosed, wherein comprising the following steps: receiving location-dependent data concerning a mobile device; from a plurality of fingerprints, each of which corresponds to one of locations within the coverage, retrieving one having the highest similarity to the location-dependent data; and determining the location corresponding to the fingerprint with the highest similarity as the mobile device's location if the highest similarity exceeds a predetermined threshold.

Abstract: A method for positioning in a communication network with a cellular coverage is disclosed, wherein comprising the following steps: receiving location-dependent data concerning a mobile device; from a plurality of fingerprints, each of which corresponds to one of locations within the coverage, retrieving one having the highest similarity to the location-dependent data; and determining the location corresponding to the fingerprint with the highest similarity as the mobile device's location if the highest similarity exceeds a predetermined threshold.