Abstract: A method of time synchronization between a timepiece-equipped electronic device and a cell phone or an IPAD, which includes the steps of: (a) utilizing the universal standard time of the cell phone or IPAD by a time synchronization APP to obtain a synchronization time information; (b) modulating an audio frequency carrier signal or time signal from the digital signal of the cell phone or IPAD based on the encoding rules of audio phase-shifting; (c) transmitting the time information in the audio frequency carrier signal to the timepiece-equipped electronic device through audio or data signal transmission channel by utilizing the Bluetooth module or WIFI of the cell phone or IPAD; and (d) receiving and pairing the audio frequency carrier signal, decoding the time information and displaying the time information, which is the synchronized time with the cell phone or IPAD, onto the display of the timepiece-equipped electronic device.

Abstract: A method of time synchronization between a timepiece-equipped electronic device and a cell phone or an IPAD, which includes the steps of: (a) utilizing the universal standard time of the cell phone or IPAD by a time synchronization APP to obtain a synchronization time information; (b) modulating an audio frequency carrier signal or time signal from the digital signal of the cell phone or IPAD based on the encoding rules of audio phase-shifting; (c) transmitting the time information in the audio frequency carrier signal to the timepiece-equipped electronic device through audio or data signal transmission channel by utilizing the Bluetooth module or WIFI of the cell phone or IPAD; and (d) receiving and pairing the audio frequency carrier signal, decoding the time information and displaying the time information, which is the synchronized time with the cell phone or IPAD, onto the display of the timepiece-equipped electronic device.

Abstract: A multifunctional music player wirelessly communicates with a mobile device, and includes a main casing, a speaker provided on the main casing, a main wireless transceiver provided in the main casing, and a main processing unit. The main processing unit is supported in the main casing and is electrically connected to the speaker, and the main wireless transceiver. The main wireless transceiver is arranged to receive wireless signals from the mobile device. The wireless signals is transmitted to the main processing unit which drives the speaker to deliver audible sound corresponding to the wireless signals, so that a user is able to control playing of music in the multifunctional music player by operating on the mobile device.

Abstract: A wireless communication system includes a first electronic device and a second electronic device. The first electronic device includes a transmitting BLUETOOTH module, a memory unit for storing at least one audio file and a control signal, and a first processing unit electrically connecting to the transmitting BLUETOOTH module and the memory unit. The second electronic device includes a receiving BLUETOOTH module, an audio device, a controlled device, and a second processing unit electrically connected to the receiving BLUETOOTH module, the audio device and the controlled device. In the first electronic device, the audio file is arranged to be converted to an audio frequency signal stream and the control signal is arranged to be modulated into the audio frequency signal stream to form a stream of audio frequency chopper signals which are then wirelessly transmitted to the second electronic device through BLUETOOTH technology.

Abstract: A multifunctional music player wirelessly communicates with a mobile device, and includes a main casing, a speaker provided on the main casing, a main wireless transceiver provided in the main casing, and a main processing unit. The main processing unit is supported in the main casing and is electrically connected to the speaker, and the main wireless transceiver. The main wireless transceiver is arranged to receive wireless signals from the mobile device. The wireless signals is transmitted to the main processing unit which drives the speaker to deliver audible sound corresponding to the wireless signals, so that a user is able to control playing of music in the multifunctional music player by operating on the mobile device.

Abstract: A timepiece includes a casing, a display, a timepiece core unit, and a current processing circuitry. The current processing circuitry includes a rectifying circuitry, an oscillating circuitry, and an output circuitry. The rectifying circuitry is adapted for electrically connected with an AC power source, and arranged to rectify the AC. The oscillating circuitry is electrically connected with the rectifying circuitry, and is arranged to transform the DC outputted from the rectifying circuitry back into AC having a predetermined voltage and a frequency. The output circuitry is electrically connected with the oscillating circuitry, and is arranged to rectifying the AC output from the oscillating circuitry into a DC pulses output, wherein the DC output from the output circuitry is electrically transmitted to the timepiece circuitry for triggering an operation thereof so as to allow the signal generator to generate accurate time signal to display the current time by the display.

Abstract: A timepiece includes a casing, a display, a timepiece core unit, and a current processing circuitry. The current processing circuitry includes a rectifying circuitry, an oscillating circuitry, and an output circuitry. The rectifying circuitry is adapted for electrically connected with an AC power source, and arranged to rectify the AC. The oscillating circuitry is electrically connected with the rectifying circuitry, and is arranged to transform the DC outputted from the rectifying circuitry back into AC having a predetermined voltage and a frequency. The output circuitry is electrically connected with the oscillating circuitry, and is arranged to rectifying the AC output from the oscillating circuitry into a DC pulses output, wherein the DC output from the output circuitry is electrically transmitted to the timepiece circuitry for triggering an operation thereof so as to allow the signal generator to generate accurate time signal to display the current time by the display.

Abstract: A clock brightness control circuit includes at least a photosensitive element connected with a current limiting element and a current regulating element. The current limiting element and the current regulating element are connected with a light-emitting element of a clock, and adjust a current flowing through the light-emitting element under control of the photosensitive element in response to ambient light illumination. The clock brightness control circuit can adjust the brightness of the clock upon a change of the ambient light illumination when the circuit is applied in the clock.