Abstract: A controlling method using a remote control having a plurality of faces includes gathering signals detected by a plurality of sensors of the remote control. The remote control is determined to transmit a control signal by searching a preset table according to the gathered signals. The determined control signal is transmitted to control an electronic device to execute a control function corresponding to the control signal.

Abstract: A controlling method using a remote control having a plurality of faces includes gathering signals detected by a plurality of sensors of the remote control. The remote control is determined to transmit a control signal by searching a preset table according to the gathered signals. The determined control signal is transmitted to control an electronic device to execute a control function corresponding to the control signal.

Abstract: A route searching method used in an electronic device includes detecting decreased available power of the electronic device. When the available power of the electronic device is less than the predetermined value, determining whether a first communication device receives infrared signals transmitted by the charging device. If the infrared signals are not received, the electronic device is driven to repeatedly to continuously turn through a predetermined angle to find a moving orientation of the electronic device, driving the electronic device to move along the orientation, determining whether the first communication device receives the infrared signals transmitted by the charging device when the electronic device is moving, and driving the electronic device to move to the charging device under guidance of the infrared signals, when the first communication device receives the infrared signals transmitted by the charging device.

Abstract: A water level alarm device includes first and second magnets, a wire, an insulated connection line, a floating body, an amplifier, and an alarm. The wire passes through a gap between the first magnet and the second magnet. The floating body floats in water of water storage equipment. When a water level of the water storage equipment is lower than a reference value, a buoyancy force of the floating body is less than a gravity of the floating body, the floating body pulls the insulated connection line, the insulated connection line vibrates, and the wire vibrates accordingly. The wire cuts magnetic induction lines between a north pole of the first magnet and a south pole of the second magnet to generate induced current. The induced current is amplified by the amplifier and then is output to the alarm, to control the alarm to alarm.

Abstract: A method of injecting liquid using an injection device, the injection device includes an infrared transceiver, which transmits infrared lights, and receives reflected infrared lights that are reflected by an object. A nozzle, and a control unit further are included in the injection device. The control unit is in communication with the infrared transceiver and the nozzle through a data bus. Once the control unit detects a size of the object according to a number of the reflected infrared lights that are received by the infrared transceiver, the control unit controls the nozzle injecting liquid with a predetermined volume according to the size of the object.

Abstract: The disclosure provides an application recognition system and an application recognition method for an electronic device. The method includes determining whether or not there is one or more hidden running applications, where the hidden applications are associated with an inactive window under an active window associated with the current running application on a screen of the electronic device. If there is one or more hidden running applications, the system acquires a sound control instruction associated with each of the hidden running applications and controls the sound output unit to output the preset sound every preset time period.

Abstract: A method for alerting running application includes steps of producing the input signals in response to user operation, detecting whether the electronic device is at the standby state, determining which applications are running, determining audio files corresponding to the determined applications according to the relationship table stored in a storage unit, and playing the determined audio files and controlling the audio output unit to output audio signals corresponding to the audio files.

Abstract: An illumination apparatus is provided. The apparatus includes a power supply unit, a switch unit, a bulb, a wireless unit, and a control unit. The power supply unit is for supplying power. The switch unit is for opening or closing a circuit between the power source unit and the bulb. The wireless unit is for receiving wireless signals from an external control device, and generating a first control signal when receiving the wireless signals. The control unit is for generating a close signal according to the first control signal. The switch unit closes the circuit between the power source unit and the bulb according to the close signal to enable the bulb to keep emitting light; and opens the circuit between the power source unit and the bulb if no receiving the close signal, thereby keeping the bulb extinguishing. A related control device for controlling the apparatus is also provided.

Abstract: An antenna includes a metallic sheet defining a first slot, a second slot, a third slot parallel to the first slot, a fourth slot parallel to the second slot, and a fifth slot parallel to the third slot. The second slot perpendicularly connects the first slot to the third slot and has a length smaller than that of the fourth slot. The third slot has a length greater than that of the first slot. The fourth slot extends perpendicularly from a side of the third slot away from the second slot. The fifth slot extends perpendicularly from an end of the fourth slot away from the third slot. The metallic sheet includes a first longitudinal side and a second longitudinal side opposite to the first longitudinal side. A feeding point is formed on the first longitudinal side and a grounding point is formed on the second longitudinal side.

Abstract: A dual frequency antenna includes a first scythe-shaped arm and a second scythe-shaped arm. The first scythe-shaped arm is configured for operating in a first band. The second scythe-shaped arm is configured for operating in a second band and includes an inverted-T-shaped strip with a foot of the inverted-T-shaped strip connected to the second scythe-shaped arm. The first scythe-shaped arm is attached to the second scythe-shaped arm at an apex. A head of the inverted-T-shaped strip is closer to the apex than the foot. A communication system is also provided.

Abstract: A multiband antenna includes a conductive sheet, a feeding point, and a grounding point. The conductive sheet defines a first slot, a second slot, a third slot, a fourth slot, a fifth slot, a sixth slot, and a seventh slot thereon. The second slot and the third slot extend from a same short side of the first slot and are parallel to each other. The fourth slot, the fifth slot, the sixth slot, and the seventh slot extend perpendicularly from a short side of the third slot away from the first slot in sequence. The feeding point is formed on the conductive sheet at a long side of the first slot away from the third slot. The grounding point is formed on the conductive sheet at a margin of the slots different from the location of the feeding point.

Abstract: An antenna includes a metallic sheet defining a first slot, a second slot, a third slot parallel to the first slot, a fourth slot parallel to the second slot, and a fifth slot parallel to the third slot. The second slot perpendicularly connects the first slot to the third slot and has a length smaller than that of the fourth slot. The third slot has a length greater than that of the first slot. The fourth slot extends perpendicularly from a side of the third slot away from the second slot. The fifth slot extends perpendicularly from an end of the fourth slot away from the third slot. The metallic sheet includes a first longitudinal side and a second longitudinal side opposite to the first longitudinal side. A feeding point is formed on the first longitudinal side and a grounding point is formed on the second longitudinal side.

Abstract: A multiband antenna includes a conductive sheet, a feeding point, and a grounding point. The conductive sheet defines a first slot, a second slot, a third slot, a fourth slot, a fifth slot, a sixth slot, and a seventh slot thereon. The second slot and the third slot extend from a same short side of the first slot and are parallel to each other. The fourth slot, the fifth slot, the sixth slot, and the seventh slot extend perpendicularly from a short side of the third slot away from the first slot in sequence. The feeding point is formed on the conductive sheet at a long side of the first slot away from the third slot. The grounding point is formed on the conductive sheet at a margin of the slots different from the location of the feeding point.

Abstract: An antenna includes a ground plane, a match portion, and a radiation portion. The ground plane is used for grounding. The match portion is parallel to the ground plane, and is connected to the ground plane. The radiation portion is connected to one end of the match portion, and extends upwardly with respect to the ground plane. The radiation portion can be a spiral element or a meandrous element. The radiation portion can also include a main body extending upwardly with respect to the ground plane, and a plurality of branches extending parallelly along a same direction from the main body.

Abstract: An illumination apparatus is provided. The apparatus includes a power supply unit, a switch unit, a bulb, a wireless unit, and a control unit. The power supply unit is for supplying power. The switch unit is for opening or closing a circuit between the power source unit and the bulb. The wireless unit is for receiving wireless signals from an external control device, and generating a first control signal when receiving the wireless signals. The control unit is for generating a close signal according to the first control signal. The switch unit closes the circuit between the power source unit and the bulb according to the close signal to enable the bulb to keep emitting light; and opens the circuit between the power source unit and the bulb if no receiving the close signal, thereby keeping the bulb extinguishing. A related control device for controlling the apparatus is also provided.

Abstract: A dual frequency antenna includes a first scythe-shaped arm and a second scythe-shaped arm. The first scythe-shaped arm is configured for operating in a first band. The second scythe-shaped arm is configured for operating in a second band and includes an inverted-T-shaped strip with a foot of the inverted-T-shaped strip connected to the second scythe-shaped arm. The first scythe-shaped arm is attached to the second scythe-shaped arm at an apex. A head of the inverted-T-shaped strip is closer to the apex than the foot. A communication system is also provided.

Abstract: An antenna includes a ground plane, a match portion, and a radiation portion. The ground plane is used for grounding. The match portion is parallel to the ground plane, and is connected to the ground plane. The radiation portion is connected to one end of the match portion, and extends upwardly with respect to the ground plane. The radiation portion can be a spiral element or a meandrous element. The radiation portion can also include a main body extending upwardly with respect to the ground plane, and a plurality of branches extending parallelly along a same direction from the main body.