Abstract: A headphone device includes a sound outputting part and a sensor. The sound outputting part includes a case, a main board, a driving unit, a baffle plate and an ear pad. The sensor is installed on the baffle plate, uncovered by the ear pad and connected with the main board. If the human ear is sensed by the sensor, the main board judges that the headphone device is worn by the user. If the human ear is not sensed by the sensor, the main board judges that the headphone device is not worn by the user. According to the result of judging whether the headphone device is worn by the user, the playback of the audio content of an electronic device connected with the headphone device is correspondingly controlled.

Abstract: A wireless power transmission device includes a main body, a first transmitter coil and a second transmitter coil. The second transmitter coil is stacked over the first transmitter coil. If the wireless power transmission device is operated in a detecting mode, a magnetic flux is generated by the first transmitter coil and oriented in the direction toward the top surface of the main body. The magnetic flux is attenuated by the overlying second transmitter coil. Consequently, the electromagnetic wave is inhibited. If the wireless power transmission device is operated in a charging mode, both the first transmitter coil and the second transmitter coil are controlled to transmit magnetic fluxes. Since the intensity of the electric power is increased, the charging efficiency is enhanced.

Abstract: A wireless power transmission device includes a main body, a first transmitter coil and a second transmitter coil. The second transmitter coil is partially stacked over the first transmitter coil. If the wireless power transmission device is operated in a detecting mode, a magnetic flux oriented in the direction toward the top surface of the main body is generated by the first transmitter coil. The magnetic flux is attenuated by the second transmitter coil. Consequently, the electromagnetic wave is inhibited. If the wireless power transmission device detects that an electronic device is located near the first transmitter coil, the first transmitter coil is controlled to be in a charging mode to transmit the magnetic flux to the electronic device, and the magnetic flux is no longer attenuated by the second transmitter coil.

Abstract: A luminous keyboard includes a lateral-emitting type illumination element, a light guide panel, a sensing circuit pattern, a light-transmissible supporting plate, and plural keys. The lateral-emitting type illumination element is used for providing a light beam to the light guide panel. Consequently, the light beam can be diffused to the whole light guide panel. The light guide panel has plural light-guiding dots for collecting and scattering the light beam. The light-transmissible supporting plate is arranged between the light guide panel and the plural keys, and has plural light diffusion structures corresponding to the plural keys. The light beam scattered upwardly by each light-guiding dot is sequentially transmitted through the corresponding light diffusion structure and directed to the corresponding key. When one of the keys is moved toward the sensing circuit pattern, the sensing circuit pattern generates a corresponding non-contact key signal.

Abstract: A luminous keyboard includes plural bottom-emitting type illumination elements, a sensing module, plural keys, and a light-transmissible supporting plate. As a key is moved toward the sensing module, the sensing module generates a corresponding non-contact key signal. Each bottom-emitting type illumination element is aligned with the corresponding key, and disposed under the corresponding key. The light-transmissible supporting plate is arranged between the plural bottom-emitting type illumination elements and the plural keys. After the light beam provided by each bottom-emitting type illumination element is transmitted through the light-transmissible supporting plate, the light beam is projected to the corresponding key.

Abstract: An input system includes a communication device and a first input device. The communication device includes a communication chip and a communication port. The first input device includes a signal port connectable with the communication port and a device connecting port connectable with a second input device. In an input method, the communication device transmits a first pairing signal to the first input device so as to acquire a first identification code and a connection information of the first input device, and then the communication device transmits a first inquiring signal containing the first identification code to the first input device so as to acquire a first input signal from the first input device. If a second pairing signal and a second inquiring signal are transmitted to the second input device, the communication device acquires a second input signal from the second input device.

Abstract: A luminous keyboard includes a keypad module, plural light-emitting elements, an illumination circuit board and a light guide plate. The illumination circuit board has a light amount control structure. When the light beams from the light-emitting elements are transmitted through the illumination circuit board, portions of the light beams are absorbed by the light amount control structure on the illumination circuit board. Consequently, the light amount of the light beams transmitted through the illumination circuit board is reduced. The luminous keyboard can effectively overcome the light leakage problem.

Abstract: A headphone device with a controlling function is provided. The headphone device includes a headphone body and an optical finger navigation module. The optical finger navigation module is installed on the headphone body and exposed to an operating surface of the headphone body. When the optical finger navigation module is operated with the user's finger, an audio generator in communication with the headphone device is correspondingly controlled. Since the optical finger navigation module is slim and small, the optical finger navigation module can be applied to various types of headphone devices.

Abstract: A luminous keyboard includes a keypad module, plural light-emitting elements, an illumination circuit board and a light guide plate. The illumination circuit board has a light amount control structure. The light amount control structure is disposed on a circuit board main body or a protective layer of the illumination circuit board, and arranged between the light guide plate and the illumination circuit board. When the plural light-emitting elements emit light beams to the illumination circuit board, the light beams are projected on the light amount control structure, and the reflected fraction of the light beams is reduced. Since the light beams are not very centralized, the problem of generating bright spots will be diminished.

Abstract: An operating time supervisory system includes a computer host, a computer screen and an input device. An application program and a device driver corresponding to the input device are installed in the computer host. The device driver contains a supervisory program. When the application program is opened, the supervisory program recognizes the application program and starts to calculate an operating time of the application program. After a prompt setting task is completed, the supervisory program acquires a prompt time point. If the supervisory program judges that the application program is still operated at the prompt time point, the operating time corresponding to the prompt time point is displayed on the computer screen under control of the supervisory program.

Abstract: A control system includes a server, an active device and a passive device. An operation interface information is stored in the server. The active device is wirelessly connected with the passive device according to a communication identification information. When a device information of the passive device is acquired by the active device, a control application program of the active device retrieves the operation interface information from the server according to the device information. Consequently, an operation interface corresponding to the operation interface information is displayed on the active device. By operating the operation interface, the passive device is correspondingly controlled.

Abstract: A wireless charging device and an electric energy recycling method are provided. The wireless charging device includes a casing, a transmitter coil, a recycling coil and a recycling battery. When a magnetic flux is generated by the transmitter coil, a first portion of the magnetic flux is transmitted to an electronic device, and a second portion of the magnetic flux is recycled by the recycling coil. The second portion of the magnetic flux is converted into a charging current by a charging unit, so that the recycling battery is charged by the charging current.

Abstract: A keyboard module includes a pressing layer, a switch circuit board, a base plate and plural glue dots. The pressing layer includes plural key parts. The switch circuit board includes plural first wiring patterns, plural second wiring patterns and plural spacing dots. The plural glue dots are disposed on a lower wiring plate of the switch circuit board. The plural glue dots and the plural spacing dots are staggered. Due to the plural glue dot, the non-bonding zones of the lower wiring plate without the glue dots are bendable. When the key part is pressed, the lower wiring plate corresponding to the pressed key part is bent. Consequently, the first wiring pattern is inserted into the region between the corresponding spacing dots and contacted with the corresponding second wiring pattern.

Abstract: A background module includes a light-emitting element, a light guide plate, and a light shielding structure. The light guide plate includes a reflective material layer. The reflective material layer is disposed on a top surface of the light guide plate and located near the light-emitting element. After a light beam emitted by the light-emitting element is introduced into the light shielding structure, a portion of the light beam is reflected back into the light shielding structure by the reflective material layer. On the other hand, a portion of the light beam is transmitted through the reflective material layer and absorbed by the light shielding structure. Consequently, the possibility of causing light leakage will be minimized.

Abstract: A touch device warning method and a touch device warning system are provided. The touch device warning method provides multiple judgment mechanisms. The multiple judgment mechanisms include the mechanism of judging whether a touch device is triggered by a touch pen, the mechanism of judging whether the touch device is moved and the mechanism of judging whether an untouched time period of the touch pen and the touch device exceeds a predetermined time. Once the conditions of the judgment mechanisms are satisfied, the touch device warning method warns the user of taking back the touch pen. Consequently, the possibility of losing the touch pen is reduced, and the occurrence of the erroneous judgment is avoided.

Abstract: An illuminated keyboard device includes plural keys, a membrane switch circuit module and plural light-emitting elements. The membrane switch circuit module is located under the plural keys. The plural light-emitting elements and plural light source wiring lines are disposed on the membrane switch circuit module. The plural light-emitting elements are connected with each other through the plural light source wiring lines. Since the plural light-emitting elements and the plural light source wiring lines are disposed on the membrane switch circuit module, it is not necessary to install a backlight module.

Abstract: A touch pen includes a sleeve, a contact element, a sensing device and a buffering element. The contact element is penetrated through the sleeve and movably relative to the sleeve. The sensing device is disposed within the sleeve. The buffering element is disposed within the sleeve. The contact element and the sensing device are separated from each other by the buffering element. While the contact element is moved in response to an external force applied to touch pen, the impact of the contact element on the sensing device is largely reduced because the contact element and the sensing device are separated from each other by the buffering element. Moreover, since the external force is received by the buffering element, the sensing device can be protected by the buffering element. Consequently, the failure probability of the touch pen is reduced.

Abstract: A keyboard includes plural keys, a base plate and a backlight module. Each key includes a keycap and a sliding element. The keycap includes a first protrusion part. The sliding element includes a second protrusion part. The first protrusion part has a first slant surface. The second protrusion part has a second slant surface. The first slant surface and the second slant surface are in parallel with each other. When the keycap is depressed and moved toward the base plate, the first slant surface is moved along the second slant surface to push the sliding element to be moved relative to the base plate in a horizontal direction. Consequently, a light beam transmitted through the base plate is further transmitted through the sliding element and outputted from the keycap, or the light beam transmitted through the base plate is blocked by the sliding element.

Abstract: An illuminated keyboard includes a key structure, a sensor board, a light source, a light guide plate, an adhesive layer, and a bottom plate. The sensor board includes a key wiring region for sensing a depressing action of the key structure and thereby generates a key signal. The light source is used for emitting a light beam to the light guide plate. The sensor board is made of a light-transmissible material. The sensor board is disposed over the light guide plate. At least one edge region of the sensor board is coated with a light-shading material or mixed with a light-shading material. Moreover, the at least one edge region of the sensor board is bent to enclose at least one edge of the light guide plate in order to prevent lateral light leakage of the illuminated keyboard.

Abstract: A time synchronization method is provided. Firstly, an update time of a second playing device is calculated according to a first system time of transmitting a first packet from a first playing device and a second system time of receiving the first packet by the second playing device. Then, a first difference value is calculated according to the first system time of transmitting a second packet from the first playing device and the update time corresponding to the reception of the second packet by the second playing device. If plural first difference values are all smaller than a first predetermined value, a second difference value is calculated. If the second difference value is smaller than a second predetermined value, a synchronization time is obtained according to the second difference value and the update time.