Abstract: The embodiments of the present disclosure relate to the technical field of electronic devices and disclose a method and an apparatus for adjusting a virtual key of a mobile terminal. According to the present disclosure, a method for adjusting a virtual key of a mobile terminal includes: collecting first touch information within a non-virtual-key region; determining whether the first touch information satisfies a first predetermined adjustment condition; receiving second touch information within the virtual key region when it is determined that the first touch information satisfies the first predetermined adjustment condition; and adjusting the virtual key based on the second touch information. The method and apparatus for adjusting a virtual key of a mobile terminal can effectively prevent false triggering of the virtual key.

Abstract: The present disclosure relates to the field of communication technology, and in particular, to an electronic device. The electronic device includes a main body having at least two acoustic cavities isolated from each other, the acoustic cavities including a first acoustic cavity and a second acoustic cavity; a processor configured to generate a plurality of control signals independent from each other, the plurality of control signals including a first control signal and a second control signal; a speaker electrically connected to the processor and configured to output a sound signal in accordance with the first control signal; and a vibrator electrically connected to the processor and capable of vibrating with respect to the main body in accordance with the second control signal. One of the speaker and the vibrator is provided in the first acoustic cavity and the other is provided in the second acoustic cavity.

Abstract: The present disclosure relate to the technical field of electronic equipment and disclose a method and apparatus for synchronously playing media and a vibration. The method includes: S101: acquiring a time difference between a present media playing time point and a next vibration playing time point; S102: starting timing at the same time of playing the media from the present media playing time point; S103: comparing an actual present media playing time point with the vibration playing time point to obtain an error therebetween when timing duration is equal to the time difference; and S104: playing a vibration and returning to S101 if the error is less than a preset threshold, and skipping playing the vibration and returning to S101 if the error is greater than the preset threshold. Compared with the prior art, a good playing effect is achieved and the user experience may be effectively improved.

Abstract: A tracking servo method of an optical video disc player and its special device which accomplish angle adjustment in a simple, time-saving and effort-saving manner and improve the tracking servo capability of the optical video disc player. In the tracking servo method of an optical video disc player, a laser beam is split into a main beam and two sub beams, and tracking error signal generated from the two sub beams are subtracted from tracking error signal generated by the main beam; light spot of the main beam is circular in shape, and light spots of the two sub beams are elliptical in shape. The special device has an effective grating region (1). The effective grating region (1) has a middle zone (2) and two side zones (3, 4); the middle zone (2) has two side edges which are parallel and equal in length, and the two side edges has a distance therebetween which is 10-90% of diameter of the effective grating region (1), and the middle zone (2) and the two side zones (3, 4) have different grating pitches.