Abstract: A package structure includes a printed circuit board (PCB), a duplexer, a first dam, a second dam and a cover. The duplexer includes a transmission filter and a reception filter and is electrically connected with the PCB. The first dam is located on a surface of the PCB, and in cooperation with the PCB forms a first receptacle receiving the transmission filter. The second dam is located on the surface of the PCB, and in cooperation with the PCB forms a second receptacle receiving the reception filter. The cover is fixed with top parts of the first dam and the second dam to seal the transmission filter and the reception filter. A method of manufacturing plural such package structures is also provided.

Abstract: A wireless communication device comprises a first antenna, a second antenna, a switch, and a balun. The first antenna and the second antenna transmit and receive signals. The wireless communication device can use only one antenna (the first antenna) or the two antennas (the first antenna and the second antenna) at the same time according to a comparison between received signal strength indications (RSSIs) of the antennas and a maximum input level of the wireless communication device.

Abstract: An electronic device defines a receiving groove for an antenna, a first opening, and a second opening. The first opening and the second opening are at two opposite ends of the receiving groove, and allow an antenna assembly to be extended or retracted in the receiving groove to allow the electronic device to receive different types of wireless signals.

Abstract: An electronic device includes a main body; at least one proximity sensor arranged in the main body to detect a motion of a user in a predetermined range from the main body. A memory arranged in the main body store a relationship table defining a relationship between an operation event and an executable function. The operation event includes: the times of the proximity of a user to the main body, the duration of a stationary state of the user relative to the main body, and the distance of the movement of a user with respect to the main body. In addition, includes a processor receiving data from the at least one sensor determining an operation event and executing an executable function according to the relationship table.

Abstract: An electronic display device detects whether a user is in front of a display via a camera according to a first frequency in a working mode of the electronic display device. If the electronic display device detects that the user is not in front of the display for a first predefined time period, the electronic display device enters a power saving mode by turning off the display. The electronic display device detects whether the user is in front of the display again via the camera according to a second frequency in the power saving mode. The electronic display device reduces the second frequency after the user is not in front of the display for a second predefined time period. The electronic display device enters the working mode by turning on the display when detecting that the user is in front of the display again.

Abstract: A USB device includes a main body, a PCB fixed in the main body and a USB connector connected to the main body. The USB connector includes a shell, a USB plug and a cover. The shell defines a receiving room, a first opening and a second opening and includes an integrally formed enclosure enclosing the receiving room and a first flange outwardly protruding from the enclosure. The USB plug electrically connects to a wire group and is inserted into the shell from the first opening. The cover shields the second opening and is fixed to the shell. The cover includes a second flange engaging with the first flange to cooperatively receive the wire group and connect to the main body.

Abstract: A network device transmits and receives data packets between the network device and a network. The data packets includes information about a procedure needed in order to process the data packets. According to the information, the network device executes the procedure to process the data packets. If the time of the procedure has not been executed to process the data packets is more than a predetermined time and no other data packets are needed to be processed, the network device turns off the procedure automatically.

Abstract: A package structure comprises a substrate, a plurality of electronic components configured and structured on the substrate, a plurality of metal resilient units electrically connected to the substrate, and an encapsulation body encapsulating the plurality of electronic components and the plurality of resilient units together with the substrate. Part of each of the plurality of metal resilient units away from the substrate is exposed out of an exterior surface of the encapsulation body.

Abstract: A semiconductor chip package includes a substrate unit, a chip, metal members, a molding compound and a shielding layer. The chip is assembled on and electrically connected with the substrate unit. The substrate unit includes conductive seat portions surrounding the chip, and defines through holes respectively coated by conducting films to ground the corresponding seat portions. The metal members are assembled on the seat portions, surround the chip, and are grounded through the conducting films. The molding compound encapsulates the chip and the metal members, with part of each metal member exposed out of the molding compound. The shielding layer covers the molding compound and the parts of each metal member exposed out of the molding compound to shield the chip from electromagnetic radiation.

Abstract: A thermal protection circuit to protect an electronic device from over-heat comprises a temperature sensor, a hysteresis comparator and a switch circuit. The temperature sensor senses internal temperature of the electronic device and output an internal temperature signal with voltage. The hysteresis comparator outputs a power-off signal when the voltage of the internal temperature signal is lower than a low voltage threshold representing an a determined temperature, or outputs a power-on signal when the voltage of the internal temperature signal is higher than a high voltage threshold representing a restarting temperature. The switch circuit stops transmitting power signals to the electronic device in response to the power-off signal, or continues to transmit the power signals to the electronic device in response to the power-on signal.

Abstract: A semiconductor package includes a lead frame, a first chip, a second chip, a plurality of bonding wires and a mold compound. The lead frame includes a pad portion at a center of the frame and a plurality of lead portions. The pad portion and the plurality of lead portions collectively define a receiving portion. The first chip is securely received in the receiving portion. The second chip is mechanically attached to the first chip. The plurality of bonding wires electrically connect the second chip to the plurality of lead portions. The mold compound encapsulates the lead frame, the first chip, the second chip and the plurality of bonding wires to form the semiconductor package.

Abstract: A wireless terminal roams from a first access point to a second access point. The wireless terminal can set a predetermined time period to determine whether to roam between different access points. Upon receiving signals from the second access point, the wireless terminal decodes signals received from the first access point and the second access point to get a correct probability of each bit of the signals. The wireless terminal then calculates mean values, a variance value and a difference in the mean values of the first access point and the second access point. If the difference in the mean value exceeds a product of the variance value and a roaming weight, the wireless terminal switches the wireless terminal from the first access point to the second access point to access the network.

Abstract: A tracking detection and alarm method which is applied to a navigation device use a number of positioning data points retrieved from a navigation module of the navigation device. A number of deflections and a number of average speeds that correspond to the position data points are calculated and generated. A number of maximum deflections are calculated and generated according to the average speeds. When a deflection of a positioning data point is greater than a maximum safe deflection thereof, one is added to a frequency of unsafe driving instances. When the frequency of unsafe driving instances is greater than a preset threshold value, an unsafe driving alarm is activated.

Abstract: In a voice recording equipment and method, voice data from a speaker is received using a microphone. Threshold values T1 and T2 of surrounding environment of the voice recording equipment are determined. If an intensity of the voice data is less than or equal to the threshold value T2, the voice recording is stopped and the speaker is informed that the voice data is not useful. If the intensity of the voice data is greater than the threshold values, the voice data is stored into a storage unit.

Abstract: A gateway device includes a local area network (LAN) interface including a plurality of LAN ports, and a processor connected to the LAN interface. The gateway device communicates with an Internet Protocol Version 4 (IPv4) network and at least two Internet Protocol Version 6 (IPv6) networks. All the plurality of LAN ports are classified into a plurality of port groups corresponding to the at least two IPv6 networks. When an IPv6 user device is connected to any one of the plurality of LAN ports, the processor identifies the LAN port connected to the IPv6 user device, and enables the IPv6 user device to communicate with the IPv6 network corresponding to the port group which includes the LAN port connected to the IPv6 user device.

Abstract: A method for controlling a remote wireless device with a user device includes the user device sending a request message packet to the remote wireless device, where the remote wireless device verifies the request message packet and sends a reply message packet to the user device if the request message packet passes verification. The user device verifies the reply message packet and sends a control message packet to the remote wireless device if the reply message packet passes verification. The remote wireless device verifies the control message packet and sends an acknowledgment message packet to the user device if the control message packet passes verification.

Abstract: An electronic device includes an enclosure, a connector, a connector cover, and a resisting member. The enclosure defines at least one opening. The connector is disposed in the enclosure and corresponding to the at least one opening of the enclosure. The connector cover covers the opening to protect the connector and includes pivot shaft. The pivot shaft is rotatably connected to the enclosure. The resisting member elastically resists against the connector cover. The resisting member may be formed by a spring biased block that presses in an end of the pivot shaft to maintain the cover in open or closed position. A restricting member may be located in the opening to limit cover rotation in both open and closed positions.

Abstract: A wireless access device communicates with a plurality of customer premised equipments (CPEs) via a network. The wireless access device establishes a plurality of queues and distributes intervals for each of the CPEs. The wireless access device receives packets from the network, obtains one of the intervals corresponding to one of the CPEs with a MAC address being a destination MAC address of one of the received packets, and stores each of the received packets to one of the queues with sequence number being in the obtained interval. The wireless access device transmits the received packets stored in the plurality of queues in the way of one row by one row.

Abstract: A method for calculating connectivity of a space having a number of objects using a computer system includes establishing a character matrix having a number of elements in accordance with the objects. A label matrix is established, and the character matrix is divided into blocks. Connectivity of the elements of each of the blocks is calculated, and then the elements are grouped into regions based on the values of the elements. Each of the regions is labeled and enhanced. Connectivity of the regions is calculated, and the regions are grouped into larger regions based on the values of the elements.

Abstract: An integrated access device (IAD) protects overcurrent of a DAA chipset. The IAD periodically detects an on-hook/off-hook state of the DAA chipset, and periodically monitors an OPD state of the DAA chipset upon the condition that the on-hook/off-hook state of the DAA chipset is detected in off-hook state at least twice. The IAD further sets the on-hook/off-hook state of the DAA chipset as on-hook to avoid damage to the DAA chipset caused by overcurrent upon the condition that the OPD state of the DAA chipset indicates the DAA chipset is overcurrent.