Abstract: The present invention provides a battery status detection method, which includes the following steps: iteratively executing the following steps: obtaining a current voltage value and a previous voltage value of a battery; calculating a difference between the current voltage value and the previous voltage value; adjusting a low battery state indicator according to the difference; and determining whether to output a low battery warning signal according to the low battery state indicator.

Abstract: A method for P2P communication, for a first base station of a mobile communication system, where a base station interface is established between the first base station and a second base station of the mobile communication system is disclosed. The method comprises obtaining an IP address of a first user equipment and a TEID corresponding to a radio bearer established between the first user equipment and the first base station, and transmitting first routing information to the second base station via the base station interface, wherein the first routing information includes the IP address of the first user equipment, the TEID corresponding to the radio bearer between the first user equipment and the first base station, and an IP address of the first base station, wherein the base station interface does not pass through a core network of the mobile communication system.

Abstract: A doorbell device has a first power input terminal and a second power input terminal. The doorbell device is coupled to a chime device. The doorbell device includes a current sensing circuit, a switch circuit, and a processing circuit. The current sensing circuit is coupled to the first power input terminal, and generates a sensing voltage according to a current flowing through the current sensing circuit. The switch circuit is coupled between the current sensing circuit and the second power input terminal. The switch circuit changes the conducting state in response to a control signal. The processing circuit is configured to provide the control signal and determine the type of the chime device according to the sensing voltage.

Abstract: A broadband antenna is provided. In the broadband antenna, the first end of a first radiation member is connected to the first end of a second radiation member to form a first commonly-connected end, and the second end of the first radiation member is connected to the second end of the second radiation member to form a second commonly-connected end, wherein the first commonly-connected end has a feed point, the second commonly-connected end is connected to a ground member, and the first radiation member is surrounded by the second radiation member and is spaced apart from the second radiation member by a gap. As a result, the broadband antenna can provide 2 frequency bands, each having ½ wavelength resonant mode in a frequency range less than 1 GHz, without the occurrence of resonant mode degradation.

Abstract: A transceiving apparatus and a spectrum access controlling method thereof are provided. The transceiving apparatus may utilize an unlicensed spectrum. In the method, feedback information related to accessing the unlicensed spectrum is received. An energy detection threshold is modified according to the feedback information. Whether to access the unlicensed spectrum is determined according to the modified energy detection threshold. If a signal strength detected on the unlicensed spectrum is greater than the energy detection threshold, an access to the unlicensed spectrum is disabled. If the signal strength detected on the unlicensed spectrum is not greater than the energy detection threshold, the access to the unlicensed spectrum is performed. Accordingly, the chance that a data transmission collision occurs is decreased, and a utilization rate of the unlicensed spectrum is improved.

Abstract: A method for transmitting an uplink grant message and a base station are provided. The method includes the following steps. Calculate a downlink speed currently used by a user equipment. Obtain a service type currently used by the user equipment. Determine whether to assign an uplink grant to the user equipment according to the downlink speed and the service type.

Abstract: A doorbell device is provided. The doorbell device includes a first camera unit, a second camera unit, a doorbell button, and a processing unit. The first camera unit includes a first camera lens and a first image sensor, generating a first video. The second camera unit includes a second camera lens and a second image sensor, generating a second video. The processing unit selectively activates one of the first camera unit and the second camera unit according to at least one of the first video, the second video, and a state of the doorbell button.

Abstract: A method for controlling transmission rate and a wireless local area network (WLAN) device are provided. The method for controlling transmission rate includes the following steps. Calculate a bandwidth requirement of the WLAN device according to a network application service provided by the WLAN device in an application layer. Determine a WLAN data transmission rate of the WLAN device in a physical layer according to the bandwidth requirement.

Abstract: The IP Camera of the present invention includes a housing, a heat conducting component, a base and a supporting structure. The heat conducting component is disposed inside the housing to directly contact a heat generating component. The base can be put on or fixed onto a supporting plane, so as to hold a weight of the IP Camera by the supporting plane. An end of the supporting structure extends through the housing to directly contact the heat generating component, and the other end of the supporting structure extends into the base. The heat conducting component and the supporting structure are used to be an uninterrupted heat conduction path between the heat generating component and the base, and a coefficient of heat conductivity of the uninterrupted heat conduction path is greater than 5W/m*K, so that the IP Camera has preferred heat dissipating efficiency.

Abstract: A power sourcing equipment is provided. The power sourcing equipment is connected to an Ethernet cable. The power sourcing equipment includes a switching circuit, a power circuit, and a detection circuit. The power circuit is coupled to a power supply output terminal via the switching circuit. The detection circuit is configured to control a state of the switching circuit according to a first resistance between a first pin and a second pin of the Ethernet cable.

Abstract: A shielding clip and an electronic device are provided. The electronic device includes a circuit board, an electronic element, a shielding cover and the shielding clip. The shielding clip comprises a bottom plate parallel to the circuit board. The bottom plate has a first side region and a second side region. The first side region has a first pin extending into the circuit board and a first buckle plate extending away from the circuit board to buckle the shielding cover. The second side region has a second pin extending into the circuit board and a second buckle plate extending away from the circuit board to buckle the shielding cover.

Abstract: A dipole array antenna includes a plurality of antenna units including a first radiator and a second radiator. The first radiator includes first and second arms extending toward a first direction, the second radiator includes third and fourth arms extending toward an opposite of the first direction. A first current route of the first radiator includes a first direct trace extending from the first transmission line toward at least a quarter of the first arm and the second arm, and a first meandering trace extending from the first direct trace to at most three quarters of the first arm and the second arm. A second current route of the second radiator includes a second direct trace and a second meandering trace with similar layout as the first current route of the first radiator.

Abstract: The present invention discloses how a small cell accesses a local network via the LIPA technique and discloses a data transmission path and data transmission protection of a local service. A method for network traffic routing for a user equipment of a wireless communication system is disclosed. The method comprises connecting to a small cell of the wireless communication system, transmitting an user identity information to the small cell, receiving an authentication result of an authentication procedure from the small cell, and obtaining a local service via the small cell and a local network connecting to the small cell without going through a core network connecting to the small cell when the authentication result indicates that the user equipment passes the authentication procedure.

Abstract: A smallcell and an operating method thereof are provided. The operating method of the small cell includes the following steps: a signal status is acquired from a set of user equipments (UEs) in the coverage area of the smallcell; at least one target UE is selected from the set of UEs according to the signal status.

Abstract: A reflective type passive infrared motion detection system includes a housing, a sensor element and a reflecting element. The sensor element is disposed on the housing. The reflecting element is disposed on the housing and has a plurality of reflecting tiers. Each reflecting tier has a plurality of reflecting curved surfaces, the reflecting curved surfaces are arranged along a first axial direction in sequence, and the reflecting tiers are arranged along a second axial direction in sequence. The reflecting curved surfaces respectively have different azimuth angles. An aperture width of each reflecting curved surface along a direction perpendicular to the second axial direction is positively correlated with a reciprocal of a cosine value of the corresponding azimuth angle. An aperture length of the reflecting curved surfaces of each tier along a direction of the second axial direction is positively correlated with square of a distance of the corresponding infrared source.

Abstract: A power sourcing equipment is provided. The power sourcing equipment is connected to an Ethernet cable. The power sourcing equipment includes a switching circuit, a power circuit, and a detection circuit. The power circuit is coupled to a power supply output terminal via the switching circuit. The detection circuit is configured to control a state of the switching circuit according to a first resistance between a first pin and a second pin of the Ethernet cable.

Abstract: Disclosed herein is a microstrip line filter including a dielectric substrate, a first hairpin resonator, and a metal ground layer. The first hairpin resonator is disposed on a first layer of the dielectric substrate. The metal ground layer is disposed on a second layer of the dielectric substrate. The metal ground layer includes a first defected ground structure. The first defected ground structure includes a first defected area, a second defected area, and a third defected area. The projection of the first defected area on the first layer is located inside the hairpin structure of the first hairpin resonator. The projection of the second defected area on the first layer is located in a direction opposite to an opening direction of the first hairpin resonator. The third defected area connects the first defected area and the second defected area.

Abstract: A reflective type passive infrared motion detection system includes a housing, a sensor element and a reflecting element. The sensor element is disposed on the housing. The reflecting element is disposed on the housing and has a plurality of reflecting tiers. Each reflecting tier has a plurality of reflecting curved surfaces, the reflecting curved surfaces are arranged along a first axial direction in sequence, and the reflecting tiers are arranged along a second axial direction in sequence. The reflecting curved surfaces respectively have different azimuth angles. An aperture width of each reflecting curved surface along a direction perpendicular to the second axial direction is positively correlated with a reciprocal of a cosine value of the corresponding azimuth angle. An aperture length of the reflecting curved surfaces of each tier along a direction of the second axial direction is positively correlated with square of a distance of the corresponding infrared source.

Abstract: A dual-band antenna including a ground element, a short-circuit element, a feed element and a radiator is provided. The radiator includes a first connection segment, a first radiation element, a second radiation element, a third radiation element and a fourth radiation element. The dual-band antenna covers a first frequency band a second frequency band through the symmetrical first radiation element and second radiation element and the symmetrical third radiation element and fourth radiation element, so as to effectively decrease an antenna volume, and satisfy the requirement of a signal coverage range of a communication device.

Abstract: A video encoding device is provided. The video encoding device includes an encoding unit, a transmission unit, and a calculating unit. The encoding unit generates an encoded video with an encoding frame rate. The transmission unit provides a video stream to a client terminal via network according to the encoded video. The calculating unit calculates an encoding rate in a first detection period according to the encoded video, and calculates a transmission rate in a second detection period according to the video stream. The encoding unit adjusts the encoding frame rate according to the encoding rate and the transmission rate.