Abstract: An illuminant keyboard and a method thereof are provided. A plurality of protruding walls substantially parallel to each other are disposed on one of an upper surface of the transparent plate, a lower surface of the transparent plate and an upper surface of the planar light source. The protruding walls may be either I-shaped, L-shaped, U-shaped or square-shaped. When the protruding walls are made of an opaque material, the protruding walls can effectively reduce the intensity of the halo light surrounding a transparent keycap. When the protruding walls are made of a transparent material with a designated color, the halo light surrounding the keycap will be modulated with the designated color.

Abstract: A backlit keyboard includes a baseplate, a light guide plate, a light source, a reflective layer, and a light mask layer. The light mask layer is disposed between the baseplate and the light guide plate. The edge of the light mask layer forms a U-shaped reflective concave pointing downward and extending around the lateral surface of the light guide plate, and a portion of the lateral surface horizontally projects on the U-shaped reflective concave, thus allowing the U-shaped reflective concave to reflect lights leaving the lateral surface of the light guide plate back to the light guide plate. A backlight module for providing backlights to the backlit keyboard and an assembly method of the backlight module are also provided.

Abstract: The present invention is a wireless communications circuit protection structure, in which a microstrip structure is improved and a combined structure of the microstrip structure and the coplanar waveguide (CPW) structure are improved, so that an external ground and an internal system ground may be totally separated with each other to provide electromagnetic susceptibility (EMS), electrostatic discharge (ESD), electricity leakage proofing ability, and a loss within a specific wireless communications frequency range may satisfy the wireless communications ability requirement.

Abstract: An illuminant keyboard and a method thereof are provided. A plurality of protruding walls substantially parallel to each other are disposed on one of an upper surface of the transparent plate, a lower surface of the transparent plate and an upper surface of the planar light source. The protruding walls may be either I-shaped, L-shaped, U-shaped or square-shaped. When the protruding walls are made of an opaque material, the protruding walls can effectively reduce the intensity of the halo light surrounding a transparent keycap. When the protruding walls are made of a transparent material with a designated color, the halo light surrounding the keycap will be modulated with the designated color.

Abstract: The present invention is a wireless communications circuit protection structure, in which a microstrip structure is improved and a combined structure of the microstrip structure and the coplanar waveguide (CPW) structure are improved, so that an external ground and an internal system ground may be totally separated with each other to provide electromagnetic susceptibility (EMS), electrostatic discharge (ESD), electricity leakage proofing ability, and a loss within a specific wireless communications frequency range may satisfy the wireless communications ability requirement.

Abstract: This specification disclosed a wireless transmission device that records channel activities and the method thereof. After wireless signals are detected to occupy all of the channels used by the wireless transmission device, the detection information thus obtained is stored in a record file. Clients are allowed to connect to the wireless network device and download the record file for analyses. When the wireless signals are interfered, the invention can determine whether the interference source is nearby or not. This achieves the goal of monitoring the band usage around the wireless network device at a lower cost.

Abstract: An antenna for use in an electronic device includes an antenna body and two elastic conductors, the antenna body is attached to the inside wall of the electronic device, includes a feeding-in portion and a grounding portion, the feeding-in portion is connected to a printed circuit board through a elastic conductor for feeding-in, and the grounding is connected to the printed circuit board for grounding.

Abstract: An antenna structure includes a first antenna and a second antenna both connected to a PCB of an electronic device and a grounded metal sheet arranged between the first antenna and the second antenna. The metal sheet forms a capacitor and an inductor, and the capacitor and the inductor form a filtering circuit that is able to reduce interference between the first antenna and the second antenna.

Abstract: A printed circuit board includes an antenna, an EMI source, and inductor. The EMI source is connected to the printed circuit board by a pin. The inductor is connected between the pin and a ground of the printed circuit board. The connected inductor increases the resonant frequency of the EMI source to make the resonant frequency of EMI source away from the antenna. Thereby the EMI generated by the EMI source is decreased and the radiation efficiency of the antenna increases.

Abstract: An electronic device includes a first antenna and a second antenna both defined in a housing of the electronic device and respectively connected to a PCB of the electronic device by a component. A slot is defined between the first antenna and the second antenna. The slot forms a capacitor and an inductor to form a filtering circuit for reducing interference between the first antenna and the second antenna.

Abstract: A blue phase liquid crystal composition includes a chiral dopant, a positive liquid crystal component and a negative liquid crystal component. The positive liquid crystal component includes at least one positive liquid crystal material, has a positive dielectric anisotropy and has no blue phase properties with respect to the chiral dopant. In addition, the negative liquid crystal component includes at least one negative liquid crystal material, has a negative dielectric anisotropy and has no blue phase properties with respect to the chiral dopant, so that the blue phase liquid crystal composition has a dielectric anisotropy between 0.5 and 14 and a blue phase temperature range larger than 3° C.

Abstract: An asymmetric gain communication device and the communication method thereof are provided. With at least one receiving antenna and a transmitting antenna with different antenna gains, the antenna gains of the receiving antennas being greater than the antenna gain of the transmitting antenna and different from each other, the invention detects the communication signals of the receiving antennas for recording communication quality thereof. The mechanism switches in real time to an appropriate receiving antenna according to the received communication quality. This mechanism optimizes the signal transmission distance and communication stability.

Abstract: A blue phase liquid crystal composition includes a chiral dopant, a positive liquid crystal component and a negative liquid crystal component. The positive liquid crystal component includes at least one positive liquid crystal material, has a positive dielectric anisotropy and has no blue phase properties with respect to the chiral dopant. In addition, the negative liquid crystal component includes at least one negative liquid crystal material, has a negative dielectric anisotropy and has no blue phase properties with respect to the chiral dopant, so that the blue phase liquid crystal composition has a dielectric anisotropy between 0.5 and 14 and a blue phase temperature range larger than 3° C.

Abstract: The mobile phone includes a printed circuit board (PCB), a metal hinged shield, and a connecting member. The metal hinged shield is pivoted on the PCB by the connecting member. The metal hinged shield further comprises a high metal body and a low metal body. The high metal body partially overlaps the low metal body.

Abstract: An asymmetric gain communication device and the communication method thereof are provided. With at least one receiving antenna and a transmitting antenna with different antenna gains, the antenna gains of the receiving antennas being greater than the antenna gain of the transmitting antenna and different from each other, the invention detects the communication signals of the receiving antennas for recording communication quality thereof. The mechanism switches in real time to an appropriate receiving antenna according to the received communication quality. This mechanism optimizes the signal transmission distance and communication stability.

Abstract: The mobile phone includes a printed circuit board (PCB), a metal hinged shield, and a connecting member. The metal hinged shield is pivoted on the PCB by the connecting member. The metal hinged shield further comprises a high metal body and a low metal body. The high metal body partially overlaps the low metal body.

Abstract: An dual-band antenna (100) used in a portable electronic device includes a first antenna unit (10) configured for receiving and/or sending wireless signals in low frequency bands, a second antenna unit (20) configured for receiving and/or sending wireless signals in high frequency bands; a feed unit (30) and a grounding unit (40). The first antenna unit, the second antenna unit and the feed unit are all connected to the grounding unit. A portion of the first antenna unit is positioned between the second antenna unit and the grounding unit. The first antenna unit and the second antenna unit are respectively positioned in different parallel planes.

Abstract: An antenna module used in a portable wireless communication device includes an antenna and a base board. The antenna includes a main portion, a feeding portion, and a grounding portion. The feeding portion and the grounding portion connect to the base board. The base board defines a first slit and a second slit. A coupling area is formed between the first slit and the second slit to resonate with the antenna.

Abstract: This specification disclosed a wireless transmission device that records channel activities and the method thereof. After wireless signals are detected to occupy all of the channels used by the wireless transmission device, the detection information thus obtained is stored in a record file. Clients are allowed to connect to the wireless network device and download the record file for analyses. When the wireless signals are interfered, the invention can determine whether the interference source is nearby or not. This achieves the goal of monitoring the band usage around the wireless network device at a lower cost.

Abstract: A dual-band antenna used in a portable wireless communication device includes a main antenna body, a feed end, and a grounding end. The feed end and the grounding end are positioned on the main antenna body. The main antenna body includes a matching portion for adjusting the match impendence of the dual-band antenna, a first antenna portion a for transmitting/receiving wireless signals in high frequency bands, and a second antenna portion for transmitting/receiving wireless signals in low frequency bands. The first antenna and the second antenna are connected to two opposition end of the matching portion. The matching portion, the first antenna, and the second antenna are coplanar.