Abstract: An electronic device including a sound receiver and a processor is provided. The sound receiver receives a sound signal provided by a sound generator. When the processor determines that an obstacle is blocked between the electronic device and the fixed device, the processor estimates a virtual position of the electronic device at a current time according to previous movement information and a previous position of the electronic device. The virtual position has a shortest path between a boundary position of the obstacle and the sound generator. The processor obtains a first relative distance between the electronic device and the boundary position according to the sound signal received by the sound receiver and the boundary position. The processor calculates a relative velocity and a relative acceleration of the electronic device relative to the fixed device at the current time according to the sound signal and the first relative distance.

Abstract: A device management method for use in a cloud system including a remote device, a mobile device and a cloud server is provided. The method includes the steps of: using, by the mobile device and the remote device, a same login information to log in the cloud server; sending, by the remote device, a push notification message to the mobile device through the cloud server when detecting that a first device is connected to a connection port, wherein the push notification message includes first identification information corresponding to the first device; and in response to receiving the push notification message, identifying, by the mobile device, the first device according to the first identification information to activate a respective application so as to perform data transmission with the first device through the respective application.

Abstract: A method for browsing virtual reality (VR) webpage content is provided. The browsing method includes: identifying a device information of a VR helmet by a native application; sending out a notification message by a first browser when it is detected that a VR webpage is browsed; retrieving a webpage information corresponding to the VR webpage and providing the webpage information to the native application by an extension component of the first browser in response to the notification message; determining, by the native application, whether the first browser supports the VR helmet to display a VR content of the VR webpage according to the device information; opening the VR webpage through a second browser, which supports the VR helmet to display the VR content, by the native application according to the webpage information when it is determined that the first browser does not support the VR helmet.

Abstract: A location identification device, adopted in an audio output device outputting an audio signal, includes a first audio receiving device, a second audio receiving device, and a processor. The first audio receiving device samples the audio signal by a sampling frequency to generate first sample points. A waveform of the audio signal is a superposition result of a high frequency signal and an envelope. The second audio receiving device, which is away from the first audio receiving device at a predetermined distance, samples the audio signal by the sampling frequency to generate second sample points. The processor obtains the first envelope of a first characteristic value and the second envelope of a second characteristic value for identifying a location of the audio output device according to a time difference and an amplitude difference between the first characteristic value and the second characteristic value.

Abstract: A connecting device configured to electrically connect a solenoid valve to a manifold base includes a housing and two spaced-apart conductive bodies disposed inside the housing. The housing has a valve-connecting portion configured to be connected to the solenoid valve, and a base-connecting portion configured to be connected to the manifold base. Each conductive body has a first conductive portion configured to electrically connect with the solenoid valve, a second conductive portion configured to electrically connect with the manifold base, and an electrical connecting portion connected between the first and second conductive portions.

Abstract: A wireless network connection method for an electronic device is provided, in which a first signal is transmitted to additional electronic device and is utilized to identify the electronic device. When the additional electronic device identifies the electronic device through the first signal, it establishes wireless communication between the electronic device and the additional electronic device. A second signal is transmitted to the additional electronic device. The second signal is an audio signal to instruct the additional electronic device to maintain the wireless communication.

Abstract: A portable electronic device includes a transmission interface, a wireless communication circuit and microprocessor. The wireless communication circuit connects to a cloud server through the Internet. The microprocessor obtains firmware-version information and device-setting information of an electronic device through the transmission interface, and controls the wireless communication circuit to send the firmware-version information and the device-setting information to the cloud server.

Abstract: The invention provides a remote control system, including a cloud server, a first device and a portable electronic device. The first device includes a transmission interface for connecting to a second device. The portable electronic device sets up a transmission path to connect with the first device via the cloud server. The first device transmits type information including a type of the transmission interface to the portable electronic device through the transmission path. The portable electronic device encodes original data based on the type information to generate encoded data conforming to the transmission interface, and transmits the encoded data to the first device through the transmission path. The first device transmits the encoded data to the second device through the transmission interface, so as to control the second device.

Abstract: A wireless network connection method for an electronic device is provided, in which a first signal is transmitted to additional electronic device and is utilized to identify the electronic device. When the additional electronic device identifies the electronic device through the first signal, it establishes wireless communication between the electronic device and the additional electronic device. A second signal is transmitted to the additional electronic device. The second signal is an audio signal to instruct the additional electronic device to maintain the wireless communication.

Abstract: The present invention provides an audio-data transmission system including a channel encoder, a data modulator and a speaker. The channel encoder is utilized to receive and encode a bit signal and generates an encoding signal. The data modulator is utilized to receive the encoding signal and modulates it to an audio signal whose frequency is on a frequency band. The audio signal includes at least four different sub-audio signals. The frequency band includes at least four sub-frequency bands with different frequencies. The frequencies of the at least four sub-audio signals are respectively on the at least four sub-frequency bands. The speaker is utilized to transmit the audio signal including the at least four different sub-audio signals.

Abstract: A communication system is provided. The communication system includes a main electronic device and an auxiliary electronic device. The auxiliary electronic device would send a connection sound wave signal. When the main electronic device receives the connection sound wave signal, the main electronic device sends a positioning signal. When the auxiliary electronic device receives the positioning signal, the auxiliary electronic device sends a positioning sound wave signal to the main electronic device. Moreover, the main electronic device determines a relative position of the auxiliary electronic device and the main electronic device according to the positioning sound wave signal, and displays an operating icon on a display unit of the main electronic device according to the relative position.

Abstract: A wireless network connection method for an electronic device is provided, in which a first signal is transmitted to additional electronic device and is utilized to identify the electronic device. When the additional electronic device identifies the electronic device through the first signal, it establishes wireless communication between the electronic device and the additional electronic device. A second signal is transmitted to the additional electronic device. The second signal is an audio signal to instruct the additional electronic device to maintain the wireless communication.

Abstract: A device management method for use in a cloud system including a remote device, a mobile device and a cloud server is provided. The method includes the steps of: using, by the mobile device and the remote device, a same login information to log in the cloud server; sending, by the remote device, a push notification message to the mobile device through the cloud server when detecting that a first device is connected to a connection port, wherein the push notification message includes first identification information corresponding to the first device; and in response to receiving the push notification message, identifying, by the mobile device, the first device according to the first identification information to activate a respective application so as to perform data transmission with the first device through the respective application.

Abstract: The invention provides a remote control system, including a cloud server, a first device and a portable electronic device. The first device includes a transmission interface for connecting to a second device. The portable electronic device sets up a transmission path to connect with the first device via the cloud server. The first device transmits type information including a type of the transmission interface to the portable electronic device through the transmission path. The portable electronic device encodes original data based on the type information to generate encoded data conforming to the transmission interface, and transmits the encoded data to the first device through the transmission path. The first device transmits the encoded data to the second device through the transmission interface, so as to control the second device.

Abstract: An image outputting device for transmitting an output image to a remote screen is provided, including a display engine, a display, a position detection device, a processor and a transmission interface. The display engine provides a display frame. The display displays the display frame. The position detection device detects position information of an object corresponding to the display. The object is physically separated from the display. The processor generates the output image according to the position information and the display frame. The transmission interface transmits the output image to the remote screen.

Abstract: Presented herein are techniques to reduce error probability and eliminate the lingering signal that causes problems during audio signal data transmission. An electroacoustic transducer of a first electronic device receives a data encoded audio signal that includes modulated digital data therein. The data encoded audio signal is demodulated to produce a present input signal that includes a target frequency and a lingering effect of a previously received data encoded audio signal. Lingering cancellation is performed on the present input signal to produce a present output signal from which the lingering effect of the previously received data encoded audio signal has been removed.

Abstract: A wireless network connection method is provided, in which a first priority level of a first electronic device is determined according to the performance of the first electronic device. A first identification sound of a frequency band of a total frequency band is transmitted, and the frequency band corresponds to the first priority level. A second identification sound from a second electronic device is received. A second priority level of the second electronic device is determined according to the second identification sound. The second priority level is compared with the first priority level. When the second priority level is higher than or equal to the first priority level, the transmission of the first identification sound is stopped. When the second priority level is lower than the first priority level, the transmission of the first identification sound is kept until a host is assigned to implement wireless internet connections.

Abstract: A sound transmitting apparatus, a sound receiving apparatus and a method for transferring data from the sound transmitting apparatus to the sound receiving apparatus using a sound signal are provided. In the method, a plurality of basic tones and control tones are defined by using a plurality of sound frequencies within a sound frequency range, in which each basic tone corresponds a character and each control tone corresponds an order of the basic tones. A plurality of characters in the data to be transferred are transformed into corresponding basic tones and the corresponding control tone is determined according to the order of the characters. The basic tones and the control tone are transmitted to the sound receiving apparatus. The sound receiving apparatus transforms the received basic tones into the characters and determines the order of the characters according to the received control tone, so as to recover the data.

Abstract: An electronic device and a method for data copy between electronic devices are provided, and the method includes following steps. Data is added to a clipboard of an electronic device. It is determined whether the electronic device is connected to a network associated to a network unit, so as to determine to use the network unit or a wireless transmission unit to transmit the data. If the electronic device is not connected to the network, the data is directly transmitted to another electronic device by the wireless transmission unit, such that the data is added to another clipboard of another electronic device. If the electronic device is connected to the network, the data is indirectly transmitted to the another electronic device by the network unit via a sever in the network, such that the data is added to the another clipboard of the another electronic device.

Abstract: The present invention provides an audio-data transmission system including a channel encoder, a data modulator and a speaker. The channel encoder is utilized to receive and encode a bit signal and generates an encoding signal. The data modulator is utilized to receive the encoding signal and modulates it to an audio signal whose frequency is on a frequency band. The audio signal includes at least four different sub-audio signals. The frequency band includes at least four sub-frequency bands with different frequencies. The frequencies of the at least four sub-audio signals are respectively on the at least four sub-frequency bands. The speaker is utilized to transmit the audio signal including the at least four different sub-audio signals.