Abstract: A keyless control device is provided, wherein the first infrared sensor module generates an infrared trigger signal when the earphone is in a wearing state; the Bluetooth controller generates enable signals according to the infrared trigger signal, and the left-ear infrared sensor module generates a first detection signal according to a first enable signal; the right-ear infrared sensor module generates a second detection signal according to the second enable signal; the left-ear acceleration sensor module generates a third detection signal according to the third enable signal when detecting that the left-ear component is knocked; the right-ear acceleration sensor module generates a fourth detection signal according to the fourth enable signal when detecting that the right-ear component is knocked; and finally, the Bluetooth controller performs the functions according to the detection signals.

Abstract: This application is related to a data recovery system. The data recovery system includes processing circuitry which receives a restore request. The restore request includes a restore target time. When backup data corresponding to the restore target time is determined to be available, the processing circuitry creates a temporary database service instance and determines information of the temporary database service instance. The processing circuitry further obtains the backup data corresponding to the restore target time and writes the backup data into the temporary database service instance according to the information of the temporary database service instance. The processing circuitry executes a formal restoration operation on the temporary database service instance, in which the backup data is written, according to a received processing request.

Abstract: This application is related to a data recovery system. The data recovery system includes processing circuitry which receives a restore request. The restore request includes a restore target time. When backup data corresponding to the restore target time is determined to be available, the processing circuitry creates a temporary database service instance and determines information of the temporary database service instance. The processing circuitry further obtains the backup data corresponding to the restore target time and writes the backup data into the temporary database service instance according to the information of the temporary database service instance. The processing circuitry executes a formal restoration operation on the temporary database service instance, in which the backup data is written, according to a received processing request.