Abstract: Disclosed is a true random number generator and a method for generating a true random number. The true random number generator includes a sampling circuit and a random number generating circuit. The sampling circuit is configured to sample N voltage(s) of N capacitors according to a clock signal and thereby generate N sample value(s), in which the N is a positive integer. The random number generating circuit is configured to generate a random number according to at least a part of the N sample value(s).

Abstract: An energy detection method includes the following steps: controlling a communication device to enter a sleep mode during a first time interval; intermittently turning on and turning off a part of receiving functions of the communication device during a second time interval, in which the second time interval is after the first time interval, and when the part of receiving functions of the communication device are turned on, the communication device is controlled to receive a signal; and determining if a beacon signal is present according to energy of the signal received by the communication device. The first time interval and the second time interval form a detection period. First average power consumption of the communication device during the second time interval is smaller than second average power consumption of the communication device, in which the second average power consumption corresponds to enabling all receiving functions of the communication device.

Abstract: A communication method includes the following steps: acquiring a data rate of a data packet; setting a clock frequency of at least one component disposed along a data transmitting path or a data receiving path of a communication system according to the data rate of the data packet, and processing the data packet after the clock frequency of the at least one component disposed along the data transmitting path or the data receiving path of the communication system is set. When the data packet has a higher data rate, the clock frequency of the at least one component is set to a higher clock frequency. When the data packet has a lower data rate, the clock frequency of the at least one component is set to a lower clock frequency.

Abstract: The present invention provides a pin multiplexer including a multiplexing circuit, a control circuit and a detecting circuit. The multiplexing circuit includes a first port, a second port and a third port, wherein the first port, the second port and the third port are coupled to a first device, a second device and a third device, respectively. The control circuit is configured to control the multiplexing circuit to operate in a first mode or a second mode, wherein when the multiplexing circuit operates in the first mode, the first port is coupled the second port; and when the multiplexing circuit operates in the second mode, the first port is coupled to the third port. When operating in the second mode, the detecting circuit detects a signal of the first port to generate a detection result for dynamically switching the data transmission direction between the third device and the first device.

Abstract: Disclosed is a capacitive touch detecting device including a sampler circuit and a detection-and-calibration circuit. The sampler circuit executes the following steps: charging a capacitor when the level of a clock signal is high, wherein the capacitor's capacitance is a first capacitance provided a touch event occurs and is a second capacitance provided the touch event doesn't occur, the first capacitance is greater than the second capacitance and related to a parasitic capacitance and a touch capacitance, and the second capacitance is unrelated to the touch capacitance; sampling a voltage determined by the capacitor during the level transition of the clock signal to generate a sample value; and discharging the capacitor when the level of the clock signal is low. The detection-and-calibration circuit determines whether the touch event occurs and whether at least one parameter needs to be updated according to the sample value and at least one parameter.

Abstract: A method for controlling a wireless communication circuit is provided, wherein the wireless communication circuit is positioned in a first electronic device, and the method includes the steps of: obtaining parameters of each of a plurality of channels of the wireless communication circuit, and storing the parameters of each channel into a first storage device of the wireless communication circuit, wherein the plurality of channels are capable of being used for communications between the first electronic device and a second electronic device; using at least one specific channel of the plurality of channels to communicate with the second electronic device; and when the wireless communication circuit enters a power saving mode, retaining the parameters of the at least one specific channel, and removing at least a portion of the parameters of the other channels from the first storage device.

Abstract: The present invention provides a method for controlling an audio device, wherein the method includes the steps of: controlling an electronic device to use a first wireless communication module to communicate with the audio device; controlling the electronic device to perform burst transmission to transmit audio data to the audio device during a partial time of a time period only; controlling the audio device to continuously play the audio data during the time period; and when the audio device finishes receiving the audio data, controlling a second wireless communication module of the audio device to enter a sleep mode.

Abstract: Disclosed is a baud rate tracking and compensation apparatus comprising: a clock generating component generating a clock; a sampling circuit sampling a reception signal according to the clock and thereby generating a sampled result, and the sampling circuit generating a transition notification signal when the sampled result indicates a transition of the reception signal; a clock counting circuit counting cycles of the clock between a first transition of the reception signal and a second transition of the reception signal according to the clock and the transition notification signal; a bit counting circuit counting bit(s) between the first transition and the second transition according to the clock and a bit cycle; and a calculation circuit dividing the number of the cycles by the number of the bit(s) to obtain a calculation value, and then updating the bit cycle according to the calculation value.

Abstract: Disclosed is a baud rate tracking and compensation apparatus comprising: a clock generating component generating a clock; a sampling circuit sampling a reception signal according to the clock and thereby generating a sampled result, and the sampling circuit generating a transition notification signal when the sampled result indicates a transition of the reception signal; a clock counting circuit counting cycles of the clock between a first transition of the reception signal and a second transition of the reception signal according to the clock and the transition notification signal; a bit counting circuit counting bit(s) between the first transition and the second transition according to the clock and a bit cycle; and a calculation circuit dividing the number of the cycles by the number of the bit(s) to obtain a calculation value, and then updating the bit cycle according to the calculation value.