Abstract: A heat-shrinkable polyester film made of a polyester-forming resin composition includes a recycled material, and has an exothermic crystallization peak and an endothermic melting peak which are determined via differential scanning calorimetry, and which satisfy relationships of T2?T1?68° C. and T3?T2?78° C., where T1 represents an onset point of the exothermic crystallization peak, T2 represents an end point of the exothermic crystallization peak and an onset point of the endothermic melting peak, and T3 represents an end point of the endothermic melting peak. A method for manufacturing the heat-shrinkable polyester film is also disclosed.

Abstract: A semiconductor structure includes a functional die, a dummy die, a redistribution structure, a seal ring and an alignment mark. The dummy die is electrically isolated from the functional die. The redistribution structure is disposed over and electrically connected to the functional die. The seal ring is disposed over the dummy die. The alignment mark is between the seal ring and the redistribution structure, wherein the alignment mark is electrically isolated from the dummy die, the redistribution structure and the seal ring. The insulating layer encapsulates the functional die and the dummy die.

Abstract: A communication system includes a microprocessor, a WiFi device, a WiMAX device, common antennas, and switching devices. The common antennas are for receiving a WiFi signal and a WiMAX signal. Each of the switching devices has an input terminal coupled to the corresponding common antenna, a first output terminal coupled to the WiFi device and a second output terminal coupled to the WiMAX device. When the communication system is applied to a WiFi system, the microprocessor controls the switching devices to isolate the WiMAX signal and couple the WiFi signal via the first output terminals to the WiFi device; when the communication system is applied to a WiMAX system, the microprocessor controls the switching devices to isolate the WiFi signal and couple the WiMAX signal via the second output terminals to the WiMAX device.

Abstract: The present invention provides a SiP module for wireless local area network comprising a base. A control unit is formed on a first surface of the base and a RF front end components is formed on a second surface of the base and coupled to the control unit through the base. A plurality of group of bumps is arranged on the first surface and coupled to the control unit, and separated with one another to reduce the interference.

Abstract: The dual mode positioning system comprises multiple wireless network devices, one of the multiple wireless network devices including a GPS receiver. DSS is coupled to the multiple wireless network devices and an operation mode switch is also coupled to the multiple wireless network devices including a GPS receiver. A satellite GPS receiver coupled to the operation mode switch. The satellite GPS receiver is operated in an indoor area confined by walls with wide FOV (field of view) glass window, the operation mode switch switching to GPS mode for the satellite GPS receiver receives signals from greater than 3 satellites. Moreover, the satellite GPS receiver is operated in an indoor area confined by concrete walls or walls with narrow FOV glass window, the operation mode switch switching to Joint GPS/WPS mode for the satellite GPS receiver cannot receive signals from greater than 3 satellites.

Abstract: The present invention provides a SiP module for wireless local area network comprising a base. A control unit is formed on a first surface of the base and a RF front end components is formed on a second surface of the base and coupled to the control unit through the base. A plurality of group of bumps is arranged on the first surface and coupled to the control unit, and separated with one another to reduce the interference.

Abstract: The present invention provides a WiFi SiP module comprising BB/MAC/RF processing unit integrating base band processor, MAC and radio frequency back end, wherein the base band processor supports IEEE 802.11a/g data rates. The MAC supports IEEE 802.11 wireless MAC protocol and IEEE 802.11 wireless security. The BB/MAC/RF processing unit includes a local-bus port for coupling to a local-bus.

Abstract: An antenna structure used in an electronic device includes a signal transmission line and an antenna unit. The signal transmission line is electrically coupled to the electronic device. The antenna unit includes a signal feed-in point, a filter, and a radiation part. The signal feed-in point is electrically coupled to the electronic device via the signal transmission line. The filter has a first end electrically coupled to the signal feed-in point. The radiation part is electrically coupled to a second end of the filter.

Abstract: A communication system includes a microprocessor, a WiFi device, a WiMAX device, common antennas, and switching devices. The common antennas are for receiving a WiFi signal and a WiMAX signal. Each of the switching devices has an input terminal coupled to the corresponding common antenna, a first output terminal coupled to the WiFi device and a second output terminal coupled to the WiMAX device. When the communication system is applied to a WiFi system, the microprocessor controls the switching devices to isolate the WiMAX signal and transmit the WiFi signal via the first output terminals to the WiFi device; when the communication system is applied to a WiMAX system, the microprocessor controls the switching devices to isolate the WiFi signal and transmit the WiMAX signal via the second output terminals to the WiMAX device.

Abstract: A switch circuitry corresponds with a plurality of antennae. The switch circuitry includes a first switch module, a second switch module, and a third switch module. In this case, the first switch module, the second switch module, and the third switch module have a plurality of control leads, a plurality of signal leads, and a plurality of antenna leads respectively. The third switch module further has a plurality of transmission leads. Each signal lead connects with corresponding one of the antenna leads. In addition, an access point including the switch circuitry is provided.

Abstract: An electronic apparatus having an antenna device. The electronic apparatus includes a housing, a circuit board, an antenna device and a feeding device. The circuit board is placed inside the housing. The antenna device disposed on a surface of the housing transmits and receives a wireless signal. The feeding device has one end electrically connected to the circuit board and the other end electrically connected to the antenna device.

Abstract: The dual mode positioning system comprises multiple wireless network devices, one of the multiple wireless network devices including a GPS receiver. DSS is coupled to the multiple wireless network devices and an operation mode switch is also coupled to the multiple wireless network devices including a GPS receiver. A satellite GPS receiver coupled to the operation mode switch. The satellite GPS receiver is operated in an indoor area confined by walls with wide FOV (field of view) glass window, the operation mode switch switching to GPS mode for the satellite GPS receiver receives signals from greater than 3 satellites. Moreover, the satellite GPS receiver is operated in an indoor area confined by concrete walls or walls with narrow FOV glass window, the operation mode switch switching to Joint GPS/WPS mode for the satellite GPS receiver cannot receive signals from greater than 3 satellites.

Abstract: An electronic apparatus having an antenna device. The electronic apparatus includes a housing, a circuit board, an antenna device and a feeding device. The circuit board is placed inside the housing. The antenna device disposed on a surface of the housing transmits and receives a wireless signal. The feeding device has one end electrically connected to the circuit board and the other end electrically connected to the antenna device.

Abstract: A switch circuitry corresponds with a plurality of antennae. The switch circuitry includes a first switch module, a second switch module, and a third switch module. In this case, the first switch module, the second switch module, and the third switch module have a plurality of control leads, a plurality of signal leads, and a plurality of antenna leads respectively. The third switch module further has a plurality of transmission leads. Each signal lead connects with corresponding one of the antenna leads. In addition, an access point including the switch circuitry is provided.

Abstract: A wireless bridge for communicating with another wireless bridge. The wireless bridge comprises a plurality of phased-array antennas, an antenna selector and a transceiver. The phased-array antennas each forms a beam and transmits/receives a signal to/from the other wireless bridge, and the beams are overlapped in angles. The antenna selector is connected to the phased-array antennas for selecting one as a main antenna according to the plurality of received signals. The received signal strength indicator (RSSI) of the signal received by the main antenna is the largest than that received by the other phased-array antennas. Then the transceiver makes transmission/reception via the main antenna.

Abstract: The present invention discloses an antenna with a filter, which comprises a substrate; an antenna device, a filter and a feed end. The antenna device is printed on the substrate; the filter is coupled to the antenna device; the feed end is coupled to the filter. The filter and the antenna device are radiating members printed on the substrate.

Abstract: An antenna control method and system is disclosed. First, output a transmission signal to an antenna apparatus to generate a main beam. The antenna apparatus has a number of antenna units arranged in a line. Next, adjust the direction of the main beam by changing phase of the transmission signal. Afterward, determine whether there is a wireless signal in the direction of the main beam. If yes, acquire direction or location of a client generating the wireless signal according to the wireless signal. Finally, control the maximum energy point of the main beam to be located at the client according to the direction or location of the client. The antenna apparatus is for receiving the transmission signal outputted by a phase shifter to generate the main beam, and the transmission signal comprises a number of sub-transmission signals of different phases.

Abstract: An antenna structure used in an electronic device includes a signal transmission line and an antenna unit. The signal transmission line is electrically coupled to the electronic device. The antenna unit includes a signal feed-in point, a filter, and a radiation part. The signal feed-in point is electrically coupled to the electronic device via the signal transmission line. The filter has a first end electrically coupled to the signal feed-in point. The radiation part is electrically coupled to a second end of the filter.

Abstract: The present invention discloses an antenna comprising a substrate, a first dual-frequency antenna, a second dual-frequency antenna, a first frequency select switch, a second frequency select switch and a feed end, wherein the first and the second dual-frequency antennas are disposed on the substrate, and the first frequency select switch has a first end connected to the first dual-frequency antenna and a second end connected to a first radiating conductive wire, and the second frequency select switch has a first end connected to the second dual-frequency antennas and a second end connected to a second radiating conductive wire, and the feed end is disposed between the first dual-frequency antenna and the second dual-frequency antenna.

Abstract: The present invention discloses an antenna with a filter, which comprises a substrate; an antenna device, a filter and a feed end. The antenna device is printed on the substrate; the filter is coupled to the antenna device; the feed end is coupled to the filter. The filter and the antenna device are radiating members printed on the substrate.