Abstract: A wireless signal transmission device and a sound system having the same are disclosed. The wireless signal transmission device is used for connecting to an audio amplifier, wherein the audio amplifier includes at least one connecting hole. The wireless signal transmission device includes a chassis, a base board, an antenna, a control module, and at least one signal transmission port. The antenna is used for emitting or receiving an audio signal. The control module is used for controlling the transmission or reception of the audio signal. The at least one signal transmission port is used for connecting to the at least one connecting hole of the audio amplifier directly for transmitting the audio signal, wherein the chassis is able to be supported by the at least one connecting hole according to a connection between the at least one signal transmission port and the at least one connecting hole.

Abstract: A handwriting input device includes a housing and a nib selectively exposed from a bottom side of the housing or hidden in the housing. The device further includes a pressure sensor, a motion sensor, and a microcontroller. The pressure sensor generates pressure signals when the nib is depressed. The motion sensor senses movement of the device. The microcontroller records the sensed movement upon receiving the pressure signals, and processes the recorded movement to obtain track signals of handwritten information when the duration of not receiving the pressure signals exceeds a predetermined time interval. The track signals of handwritten information are then transmitted to an external electronic device communicating with the device to become handwriting shown on a display of the external electronic device.

Abstract: A chipset package structure includes a carrier, a plurality of pinouts, at least one semiconductor package preforms, at least one electromagnetic shielding layer and a protective layer. The pinouts are disposed on the carrier. The semiconductor package preforms is disposed on the second surface of the carrier and electrically connected to the pinouts. The electromagnetic shielding layer is disposed on the semiconductor package preforms and the electromagnetic shielding layer. At least one of the electromagnetic shielding layers comprises a carbon nanotube film structure. The protective layer covers the electromagnetic shielding layer.

Abstract: A laser projector includes a housing, a light source arranged within the housing, and a vibration module arranged within the housing to cause the light source to vibrate in a predetermined range.

Abstract: An electronic device includes a storage unit, a sound signal receiving unit, a remote signal generating unit, a processing unit, and a transmitting unit. The control table records RC devices, sound parameters, and control commands. Each RC device is associated with at least one sound parameter. Each sound parameter corresponds to one control command. The sound signal receiving unit receives sound signals. The processing unit determines a sound parameter according to the received sound signals, searches in the control table to determine the control command the sound parameter corresponding to according to a selected RC device, and controls the remote signal generating unit to generate a remote signal corresponding to the determined control command. The transmitting unit transmits the remote signal to the selected RC device.

Abstract: A method applied in a display apparatus is provided. The display apparatus includes a first screen, a second screen, power signal means. The first screen is volatile. The second screen is non-volatile. The power signal means generate a power off signal in response to a user operation. The method includes: determining whether a power off signal is received; displaying a user interface on the first screen if the power off signal is received; controlling the display on the second screen in response to a user selection on the operation interface; generating a shutdown signal; and powering off the first screen, and the second screen when receiving the shutdown signal.

Abstract: A 3D image rectifying method includes: controlling at least two cameras to capture depth images in front of an electronic device periodically and forms 3D images according to the captured depth images; recognizing the face of the user from the formed 3D image; determining at least one deflection angle which the detected face deflected from a front view of the face in the 3D image; separating the recognized face from the background of the 3D image; and rotating the recognize face according to the at least one deflection angle to rectify the recognize face to the front view of the face and display the rectified image.

Abstract: An electronic cosmetic case includes a stereo image display unit, and a pair of image capturing units. The pair of image capturing units is for simultaneously capturing facial image of a user from two different directions, and providing the captured images to the stereo image display unit. The stereo image display unit receives the two captured images and simultaneously displays one captured image to the left eye and displays the other captured image to the right eye, thus allowing the user to perceive a stereo image.

Abstract: A filter includes: a container; at least one barrier, an input device and an output device. The at least one barrier divide the space of the container into at least two resonant cavities. Each resonant cavity has a harmonic oscillator disposed therein. The harmonic oscillators includes a supporter and a carbon nanotube structure disposed on a surface of the supporter.

Abstract: A projection device with a brightness adjustment function includes a polarization beam splitter (PBS), a light source, a reflective display, a lens module, a power supply unit, a light detection unit and a power controller. The light source emits light to the PBS. The PBS reflects a portion of the light to the reflective display, and transmits a remaining portion of the light. The lens module projects the images. The light detection unit acquires a digital value of a portion of the light reflected by the PBS that is not received by the reflective display, and compares the digital value with a predetermined digital value to generate a control signal. The power controller for adjusts power from the power supply unit to the light source according to the control signal until the digital value matches the predetermined digital value of the light from the light source.

Abstract: A set-top box is provided. The set-top box includes a network interface, a wireless communication unit, and a processor. The set-top box connects to a network server through the network interface. The set-top box communicates with a portable device. The processor receives a play request signal including at least one keyword from the portable device through the wireless communication unit. Searches the network server to find at least one multimedia file through the network interface according to the at least one keyword included in the play request signal. Downloads the at least one multimedia file found from the network server, and transmits the downloaded portion of the at least one multimedia file to the portable device through the wireless communication unit.

Abstract: A projection device includes a base, a desk lamp, a projector, a supporting member, and a fastener assembly. The desk lamp defines a first hole. The projector defines a second hole aligned with the first hole of the desk lamp. One end of the supporting member is connected to the base, and another end of the supporting member is connected to the desk lamp. The fastener assembly includes a bolt and a nut. The nut is fixed in the projector. The bolt is capable of passing through the first hole and being screwed into the nut via the second hole to connect the projector to the desk lamp.

Abstract: A method for correcting keystone distortion is provided. The method is applied on a projector capable of correcting keystone distortion. The apparatus includes an angle detecting unit and a storage unit. The angle detecting unit detects an inclined angle and outputs a voltage value corresponding to the detected inclined angle. The storage unit stores a relationship between the inclined angles and the voltage values. The method includes determining the inclining angle according to the voltage value and the stored relationship; calculating the ratio of the length of the upper side of the projection area of a source image projected onto a projection surface to the length of the lower side of the projection area of a source image projected onto the projection surface, and inversing the ratio to determine a correction coefficient; and modifying the source image to display the source image onto the projection surface.

Abstract: A filter includes: a container; at least one barrier, an input device and an output device. The at least one barrier divide the space of the container into at least two resonant cavities. Each resonant cavity has a harmonic oscillator disposed therein. The harmonic oscillators includes a supporter and a carbon nanotube structure disposed on a surface of the supporter.

Abstract: A filter includes: a container; at least one barrier, an input device and an output device. The at least one barrier divide the space of the container into at least two resonant cavities. Each resonant cavity has a harmonic oscillator disposed therein. The harmonic oscillators includes a supporter and a carbon nanotube structure disposed on a surface of the supporter.

Abstract: A wrist worn electronic device includes a main body having a processor and a receiving member electrically connected to the processor. A belt includes an electronic component and a connection member electrically connected to the electronic component. The connection member is used to engage the receiving member, to connect the belt to the main body and electrically connect the electronic component to the processor.

Abstract: An electronic device includes a touch screen, a storage unit storing a number of electronic files and relationships between touch contacts and functions, and a processing unit. The touch screen produces contact signals in response to user's touch contacts. The processing unit detects the according to the contact signals, determines a function corresponding to the user's touch contact according to the relationships. In addition, determines the function is a data transmitting function when the contact track of the user is slid on the touch screen toward an edge of the touch screen and the contact pressure is changed from heavy to light. The processing unit further determines an electronic file currently activated and transmits the determined electronic file, when determining the function is the data transmitting function.

Abstract: An electronic device includes a circuit board comprising a first metal layer and a second metal layer. The first metal layer is affixed to one side of the circuit board, and the second metal layer is affixed to the first metal layer. A channel is defined between the first metal layer and the second metal layer. A coolant container is used to accommodate coolant. A driving unit is used to drive the coolant to circuit in the channel.

Abstract: An electronic device which includes a motion detection module, a storage unit, and a processing unit. The motion detection module includes a heat detection unit, a recognition unit, and a processing unit. The heat detection unit is used to produce a series of detection signals in series when a human presence is detected around the electronic device within a predetermined area. The analysis unit is used to convert the detection signals into a series of binary images. The recognition unit compares the binary images sequentially and determines any change between these binary images, and is further able to determine the particular human motion which is taking place. The storage unit stores a relationship table recording relations between functions and particular human motions. The processing unit is used to determine the function corresponding to the particular human motion determined by the recognition unit, and executes the function.

Abstract: A handwriting input device includes a hollow charger and a handwriting pen. The charger includes a number of first contacts and a connecting unit. The handwriting pen includes a number of second contacts, a communication unit, a light source to emit light, an optical sensor, and a microcontroller. When the charger is connected to an external electronic device through the connecting unit, and the handwriting pen is inserted into the charger to cause each second contact to be contacted with one first contact, the handwriting pen can obtain power from the external electronic device. When the charger is moved, together with the handwriting pen being charged, the optical sensor converts the light reflected from a reflective surface under the charger into the electrical signals. The microcontroller generates and transmits the cursor control signals or the track control signals to the external electronic device.