Abstract: An audio signal switcher includes a jack switcher and a plug switcher. The jack switcher includes an audio jack and a first USB port. The audio jack includes a left track segment and a right track segment which are coupled to a first data pin and a second data pin of the first USB port, respectively. The jack also includes a ground segment divided into a left ground ring and a right ground ring which are connected together to couple to a ground pin of the USB port. The plug switcher includes an audio plug and a second USB port. The audio plug is coupled to the second USB port according to a connection between the audio jack and the first USB port.

Abstract: An intelligent light emitting diode (LED) lamp includes a power management unit connected to a power source configured for supplying power; a LED lighting unit; a motion sensor configured for detecting whether there is someone around the LED lamp and producing a trigger signal when detecting that someone is around; a light detector configured for detecting current ambient light level and generating a light signal according to the current ambient light level; and a processing unit configured for controlling the LED lighting unit to light, generating and passing on a communication signal to other LED lamps, upon condition that the trigger signal is received and the current ambient light level is determined less than a predetermined value according to the light signal.

Abstract: An exemplary electronic device capable of automatically selecting a power source includes two power ports configured to connect to external power sources and a battery compartment configured to receive a battery module. The voltage of the battery module is higher than at least one of the external power sources. The electronic device further includes a power selection module allocated between the battery module and the power port which selects the lower voltage. Three diodes are respectively located on the output path of the three power sources. A path switch that controls whether power to the device comes from the battery compartment or a power port is located between the anode of the battery compartment and the diode located on the output path of the battery module. Among the multiple power sources, the external power source providing a higher voltage is the first to be chosen to power the electronic device.

Abstract: An LED table lamp includes a base; a support arm with an end connected to the base; a power input disposed in the base configured for receving power; a lamp body pivotally connected to another end of the support arm; an LED light module, composed by several LED dies and a circuit board connected in a manner of series or parallel; and a light filter disposed on light path of the lamp body, configured for making light emitted from the light emitting device uniform.

Abstract: An audio signal switcher includes a jack switcher and a plug switcher. The jack switcher includes an audio jack and a first USB port. The first USB port includes a first data pin, a second data pin, a power pin, and a ground pin. The audio jack includes a left track segment, a right track segment, and a ground segment, which are isolated coupled to at least three pins of the first USB port. The plug switcher includes an audio plug and a second USB port. The audio plug includes a left track segment and a right track segment which are coupled to a first data pin and a second data pin of the second USB port, respectively. The plug also includes a ground segment divided into a left ground ring and a right ground ring which are connected together to couple to a ground pin of the USB port.

Abstract: An audio signal switcher includes a jack switcher and a plug switcher. The jack switcher includes at least two audio jacks and a first USB port. The first USB port includes a first data pin, a second data pin, a power pin, and a ground pin. Each of the audio jacks includes a left track segment, a right track segment, and a ground segment, which are electrically isolated coupled to at least three pins of the first USB port. The plug switcher includes an audio plug and a second USB port. The second USB port also includes a data pin, a second data pin, a power pin, and a ground pin. The audio plug also includes a left track segment, a right track segment, and a ground segment, which are electrically isolated coupled to at least three pins of the second USB port.

Abstract: An audio signal switcher includes a jack switcher and a plug switcher. The jack switcher includes an audio jack and a first USB port. The audio jack includes a left track segment and a right track segment which are coupled to a first data pin and a second data pin of the first USB port, respectively. The jack includes a ground segment divided into a left ground ring and a right ground ring which are connected together to couple to a ground pin of the USB port. The plug switcher includes an audio plug and a second USB port. The second USB port also includes a data pin, a second data pin, a power pin, and a ground pin. The audio plug also includes a left track segment, a right track segment, and a ground segment, which are isolated coupled to at least three pins of the second USB port.

Abstract: An audio signal switcher includes a jack switcher and a plug switcher. The jack switcher includes an audio jack and a first USB port. The audio jack includes a left track segment and a right track segment which are coupled to a first data pin and a second data pin of the first USB port, respectively. The jack also includes a ground segment divided into a left ground ring and a right ground ring which are connected together to couple to a ground pin of the USB port. The plug switcher includes an audio plug and a second USB port. The audio plug is coupled to the second USB port according to a connection between the audio jack and the first USB port.

Abstract: The present invention provides an audio signal switcher including a jack switcher and a plug switcher. The jack switcher includes an audio jack and a first USB port. The first USB port includes a first data pin, a second data pin, a power pin, and a ground pin. The audio jack includes a left track segment, a right track segment, and a ground segment, which are electrically isolated coupled to at least three pins of the first USB port. The plug switcher includes an audio plug and a second USB port. The second USB port also includes a data pin, a second data pin, a power pin, and a ground pin. The audio plug also includes a left track segment, a right track segment, and a ground segment, which are electrically isolated coupled to at least three pins of the second USB port according to a connection between the audio jack and the first USB port. The plug switcher can be connected to the jack switcher by a USB cable.

Abstract: A touch sensing apparatus includes: a differential signal source for generating two alternating current signals with same frequency and reverse phase; two conductors connected to a cathode output end and an anode output end of the differential signal source; a sensor for receiving a noise generated by a contact of an object; wherein the sensor and the two conductors form two simulated capacitors that result in offsetting environmental noise; a detector having a first input end and a second input end, the detector upon receiving the noise transferred from the sensor resulting in voltage differences between the first and second input ends thereof, and outputting a signal; and a rectifying circuit for rectifying the alternating current signals generated by the differential signal source and simultaneously generating a noise.

Abstract: A switching mode power supply includes a transformer which includes a primary winding and two secondary windings. One secondary winding and the primary winding constitute a forward circuit. The other secondary winding and the primary winding constitute a flyback circuit. The switching mode power supply also includes a power storing circuit and an output terminal. The power storing circuit is interposed between the forward circuit, the flyback circuit, and the output terminal.

Abstract: A touch sensing apparatus is provided. The apparatus includes a flip-flop (15), a sensor (13), an AC signal (14), and a detector (16). The AC signal supplies AC signals to the flip-flop. The flip-flop outputs a first output signal at the output of flip-flop when the sensor is not touched. The sensor receives electricity signals from the object, and causes a delay of the AC signal inputted to the first input of the flip-flop, the delay of the AC signal to be inputted to the first input of the flip-flop further causes the flip-flop to output a second output signal at the output of the flip-flop. The detector detects a change from the first output signal to the second output signal at the output of the flip-flop and accordingly identifies a touch on the sensor.

Abstract: An energy saving system used in an electronic device is provided. The energy saving system includes a battery for supplying the electronic device with energy; a energy detector for measuring a energy level of the battery, and transmitting a battery energy saving control signal when the measured energy level is equal to or less than a predetermined energy level; and a control unit for changing a predetermined first time period into a predetermined second time period which is shorter than the predetermined first time period according to the battery energy saving control signal, and controlling the electronic device to enter a sleep mode state when an elapsed time of not receiving any operations on the electronic device reaches the predetermined second time period.

Abstract: A touch sensing apparatus is provided. The apparatus includes a sensor (13), a flip-flop (16), and a microcontroller unit (17). The sensor is connected to one of input of the flip-flop for receiving electricity signals from an object that touches the sensor. The MCU respectively supplies two AC signals at two outputs thereof to two inputs of the flip-flop. The flip-flop outputs a first type output signal at the output thereof when the sensor not being touched. When being touched, the sensor receives electricity signals from an object, and causes a delay of an AC signal to be inputted to the input of the flip-flop to which the sensor is connected, the delay of the AC signal to be inputted to the input of the flip-flop further causes the flip-flop to output a second type output signal at a output thereof. The MCU detects a change of the output signals of the flip-flop from the first type output signal to the second type output signal and accordingly identifies a touch on the sensor.

Abstract: A method for obtaining technical information of IC is disclosed. The method provides an IC, a computer, and a network terminal. The network terminal stores technical information of the IC. The IC includes a memory. The memory stores link information for obtaining the technical information. Connects the IC to the computer. The computer reads the link information from the memory of IC, and obtains the technical information from the network terminal according to the link information. Using this method, engineers can find the technical information of the IC conveniently and correctly.

Abstract: A method for outputting multimedia files and broadcast contents of a selected television (TV) channels on the DPF in a picture-in-picture (PIP) output mode is provided. The method includes: starting the PIP output mode when the DPF plays multimedia files under a DPF mode; defining a PIP region on the DPF; receiving broadcasts of a selected TV channel; and outputting the multimedia files and the broadcast contents of the selected TV channel in the PIP output mode. A related DPF is also provided.

Abstract: A method of a digital photo frame (DPF) with mode switching function is provided. The method includes: determining whether the DPF is in a DPF mode or a TV mode upon receiving a power off signal; detecting whether any multimedia file exists in the DPF if the DPF is in the TV mode; and switching the DPF from the TV mode to the DPF mode if any multimedia file exists in the storage. A related DPF is also provided.