Patent application number | Description | Published |
20140009352 | ANTENNA ASSEMBLY AND WIRELESS COMMUNICATION DEVICE EMPLOYING SAME - A wireless communication device includes a housing and an antenna assembly. The antenna assembly includes a base board, a feed member electronically connecting with the base board to carry an electrical current, and a radio member including a first radio portion, the first radio portion defining a first slot. The radiator couples with the feed member, inducing an electrical current in the first radio portion. The radio member is electronically connected to the base board through the metal housing, enabling the induced electrical current to flow through the first radio portion, the metal housing, and the base board to form a current loop. The induced electrical current flows through the first slot to excite a first resonance mode, enabling the antenna assembly to receive/transmit a first wireless signal. | 01-09-2014 |
20140340281 | BROADBAND ANTENNA AND WIRELESS COMMUNICATION DEVICE EMPOLYING SAME - Broadband antenna for wireless communication device is disclosed. The broadband antenna includes a grounding portion, a feeding portion, a connecting portion, a first radiation body connected to an end of the connecting portion, and second radiation body connected to another end of the connecting portion opposite to the first radiating body. The first radiating body and the second radiating body are symmetrical to each other with respect to the connecting body. The feeding portion is connected to an end of the first radiating body away from the second radiating body, the grounding portion is connected to an end of the second radiating body away from the first radiating body. | 11-20-2014 |
20140361929 | ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE USING THE SAME - An antenna structure includes a metal member, a first antenna, and a second antenna. The second antenna includes a first portion, a second portion, and a third portion. Both of the second portion and the third portion are connected to the first portion. Both of the first portion and the third portion are spaced from the first antenna, and are coupled with the metal member. | 12-11-2014 |
20140375507 | BROADBAND ANTENNA AND WIRELESS COMMUNICATION DEVICE EMPLOYING SAME - A broadband antenna for a wireless communication device includes a first feeding portion, a second feeding portion, a grounding portion, a low band radiating unit, a high band radiating unit, and a resonating unit. The low band radiating unit is connected to the first feeding portion and establishing a first current path to generate a low band frequency. The high band radiating unit is connected to the second feeding portion and establishing a second current path to generate a first high band frequency. The resonating unit is connected to the grounding portion and establishing a third current path to generate a second high band frequency. The resonating unit resonates with the high band radiating unit to generate a third high band frequency. | 12-25-2014 |
20150054693 | ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE EMPLOYING SAME - A wireless communication device includes a substrate and an antenna structure. The substrate includes a first surface and a second surface opposite the first surface. The antenna structure includes a feeding antenna, a metal ring, and a parasitic antenna. The feeding antenna has a feeding point configured to feed current signal. The metal ring is positioned apart from the feeding antenna, the metal ring is configured to be grounded and resonate with the feeding antenna to generate a first high-frequency resonate mode. The parasitic antenna is connected to the metal ring, the parasitic antenna is configured to resonate with the feeding antenna to generate a second high-frequency resonate mode, and resonate with the metal ring to generate a low-frequency mode. | 02-26-2015 |
20150054708 | BROADBAND ANTENNA AND WIRELESS COMMUNICATION DEVICE EMPLOYING SAME - A broadband antenna is mounted aside a metal electronic element and includes a feeding portion, a first connecting portion, a second connecting portion, a coupling portion, and a ground portion. The first radiating portion and the second radiating portion are both connected perpendicular to the feeding portion. The coupling portion is spaced from the first radiating portion and the second connecting portion. The ground portion is connected perpendicular to a middle portion of the coupling portion and adjacent to the metal electronic element. These portions cooperatively use a low frequency mode and a high frequency mode. The ground portion increases an inductance performance of the broadband antenna, thereby decreasing interference caused by the metal electronic elements. A wireless communication device employing the broadband antenna is also disclosed. | 02-26-2015 |
20150057054 | TUNABLE ANTENNA AND WIRELESS COMMUNICATION DEVICE EMPLOYING SAME - A wireless communication device includes a substrate and a tunable antenna. The substrate has a signal source. The tunable antenna includes a metal cover and at least one matching circuit. The metal cover serves as a cover of the wireless communication device, and includes a radiation body, a main body, and a dielectric member coupled between the radiation body and the main body. The radiation body is coupled to the signal source and dielectric relative to the main body. The at least one matching circuit is configured to switch between multiple working mode to enable the radiation body to receive and send wireless signals at different frequency bands. | 02-26-2015 |
20150061960 | ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE EMPLOYING SAME - An antenna structure includes a monopole antenna, a short parasitic antenna and an impedance matching circuit. The monopole antenna includes a first radiating body, a second radiating body and a feeding portion coupled to the first radiating body and the second radiating body. The first radiating body configured to excite a low-frequency resonating mode; the second radiating body configured to excite a first high-frequency resonating mode. The short parasitic antenna includes a parasitic body spaced apart from the second radiating body and a grounding portion coupled to the parasitic body. The short parasitic antenna configured to excite a second high-frequency resonating mode, and resonate with the second radiating body to excite a third high-frequency resonating mode. The impedance matching circuit includes a variable capacitor configured to regulate operating frequency band of the low-frequency resonating mode. | 03-05-2015 |
20150109171 | ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE USING SAME - An antenna structure includes a radiator, a first metallic sheet, and a second metallic sheet. The first metallic sheet and the second metallic are positioned at two opposite sides of the radiator. The radiator includes a first radiator portion, a second radiator portion, a third radiator portion. The second radiator portion and the third radiator portion are symmetrically connected to the first radiator portion. The first radiator portion is coupled to the second metallic sheet, both the second radiator portion and the third radiator portion are coupled to the first metallic sheet. The first metallic sheet, the second metallic sheet, and the radiator jointly form a loop structure. | 04-23-2015 |
20150138033 | ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE USING THE SAME - An antenna structure includes a first radiation arm, a second radiation arm, a feed end, and a ground end. The second radiation arm is perpendicularly connected to the first radiation arm. The first radiation arm and the second radiation arm jointly form a junction, both the feed end and the ground end are positioned adjacent to the junction. | 05-21-2015 |
20150155616 | ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE USING THE SAME - An antenna structure includes a first frame, a feed end, at least one ground end, a first radiator, a first extending section, a second extending section, a coupling section, and a second radiator. The first radiator is coupled to the feed end and is parallel to the first frame. The first extending section is coupled between the feed end and first frame. The second extending section is coupled between the feed end and the first frame. The coupling section is coupled to the first frame. The second radiator is coupled between the at least one ground end and the first frame. | 06-04-2015 |
20150155617 | ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE USING THE SAME - An antenna structure includes a feed portion, a ground portion, a first radiator, a second radiator, a first metallic sheet, and a second metallic sheet. The first radiator is coupled to the feed portion. The second radiator is spaced from the first radiator, and is electronically coupled to the first radiator. The first metallic sheet is coupled to the ground portion. The first metallic sheet and the second metallic sheet are connected to two opposite sides of the second radiator. | 06-04-2015 |
20150155632 | ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE USING THE ANTENNA STRUCTURE - An antenna structure includes a main body, a first radiating body, and a second radiating body. The main body includes a feeding portion, a connecting portion, a first coupling portion, and a second coupling portion. The connecting portion is perpendicularly connected to the feeding portion. The first coupling portion and the second coupling portion are positioned at two opposite sides of the connecting portion. The first radiating body is configured to surround and resonate with the first coupling portion. The second radiating body is configured to surround and resonate with the second coupling portion. | 06-04-2015 |
20150155633 | ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE USING THE ANTENNA STRUCTURE - An antenna structure includes a feed portion, a ground portion, a connecting portion, a first radiating portion, a second radiating portion, and a resonance portion. The ground portion is spaced apart from the feed portion. The connecting portion is electrically connected to the feed portion. The first radiating portion and the second radiating portion are both electrically connected to the connecting portion. The resonance portion is electrically connected to the ground portion. The connecting portion and the resonance portion define a slot therebetween. | 06-04-2015 |
20150180113 | ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE USING SAME - An antenna structure includes a feed portion, a ground portion, a connecting portion, a first metallic sheet, a second metallic sheet, and a coupling portion. The connecting portion is electrically connected to the feed portion. The first metallic sheet is electrically connected to the ground portion. The second metallic sheet is spaced apart from the first metallic sheet and is electrically connected to the connecting portion. The coupling portion is coupled to the connecting portion and spaced apart from the first metallic sheet. | 06-25-2015 |
20150180131 | ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE USING THE SAME - An antenna structure includes a baseplate, a first radiator plate, a second radiator plate, and a third radiator plate. The baseplate has a first surface and a second surface opposite to the first surface. The first radiator plate is disposed on the first surface. The second radiator plate is disposed on the first surface. The third radiator plate is disposed on the second surface. A slot is defined between the first radiator plate and the second radiator plate, and the second radiator plate is coupled to the first radiator plate and the third radiator plate. | 06-25-2015 |
20150185707 | WEARABLE WIRELESS ELECTRONIC DEVICE - A wearable wireless electronic device includes a watch dial and a hand module. The hand module includes a first hand and a second hand that are rotatably coupled to the watch dial. The first and second hands are configured to indicate current time and send/receive wireless signals. When the first and second hands rotate relative to the watch dial, the first and second hands are configured to display current time. When the first hand is positioned at a predetermined position substantially perpendicular to the second hand, the first and second hands are configured to send/receive wireless signals. | 07-02-2015 |
20150188211 | ANTENNA STRUCTURE AND WIRELESS COMMUNICATION DEVICE USING THE ANTENNA STRUCTURE - An antenna structure includes a metal member, a radiating portion, a coupling portion, and a connecting portion. The metal member is grounded. The coupling portion is spaced apart from the radiating portion. The connecting portion has a first end electronically connected to the coupling portion and a second end electronically connected to the metal member. The radiating portion is configured to deliver current to the coupling portion. | 07-02-2015 |
20150188220 | ANTENNA SWITCHING SYSTEM AND WIRELESS COMMUNICATION DEVICE USING THE ANTENNA SWITCHING SYSTEM - An antenna switching system includes a first antenna, a second antenna, a first sensing unit, a second sensing unit, a controlling unit, and a switching unit. The first sensing unit detects a distance between an object and the first antenna. The second sensing unit detects a distance between the object and the second antenna. The controlling unit is electronically connected to the first sensing unit and the second sensing unit. The switching unit is electronically connected to the controlling unit, the first antenna, and the second antenna. The controlling unit is configured to activate and deactivate the first antenna and the second antenna via the switching unit based on detections of the first sensing unit and the second sensing unit. | 07-02-2015 |
Patent application number | Description | Published |
20120299570 | FIXED DEAD TIME PFC CONTROLLER - A fixed dead time PFC controller, comprising: an amplitude normalization circuit, used to generate a normalized signal according to a full-wave rectified input voltage; a comparator circuit, used to compare the normalized signal with a threshold voltage to generate a select signal, wherein the select signal exhibits a first state when the normalized signal is higher than the threshold voltage, and a second state when the normalized signal is lower than the threshold voltage; and a driving signal selection circuit, having a first input end coupled to a first driving signal, a second input end coupled to a second driving signal, a control end coupled to the select signal, and an output end for outputting a gate driving signal. | 11-29-2012 |
20130187550 | LED LIGHTING CIRCUIT CAPABLE OF PREVENTING THERMAL BREAKDOWN - An LED lighting circuit capable of preventing thermal breakdown, including: an LED module, having a top end coupled to a line voltage; and a controller, coupled to the line voltage and a bottom end of the LED module, the controller including: an amplifier, having a positive input end coupled to an adjustable reference voltage; a transistor, having a gate terminal coupled to an output end of the amplifier, a first channel terminal coupled to the bottom end of the LED module, and a second channel terminal coupled to a negative input end of the amplifier; a current sensing resistor, coupled between the second channel terminal and a ground; and a reference voltage generator, used for generating the adjustable reference voltage according to the line voltage. | 07-25-2013 |
20130249423 | CASCODED CURRENT REGULATOR - A cascoded current regulator, including: a first load circuit, having a first load and a current source unit; and a second load circuit, being cascaded with the first load circuit and having a second load and a current mirror unit, wherein a first current flowing through the first load and a second current flowing through the current source unit are controlled by a control voltage, and a third current flowing through the second load and a fourth current flowing through the current mirror unit are generated according to the second current. | 09-26-2013 |
Patent application number | Description | Published |
20120043908 | NOVEL LED DRIVER CONTROLLER - A novel LED driver controller, including: an auto-gain control unit, having an input end coupled to an input voltage signal which is derived from a line voltage, and an output end for providing a normalized signal; a comparator, used to perform voltage comparison on the normalized signal and a current sensing signal to generate a turn-off signal, wherein the turn-off signal will change state from inactive to active when the current sensing signal reaches the normalized signal; and a driving circuit, having a set input end, a reset input end, and an output end, the set input end being coupled to a turn-on signal, the reset input end being coupled to the turn-off signal, the output end being used for providing a gating signal. | 02-23-2012 |
20120062194 | HIGH SIDE CONTROLLER CAPABLE OF SENSING INPUT VOLTAGE AND OUPUT VOLTAGE OF A POWER CONVERSION CIRCUIT - A high side controller capable of sensing input voltage and output voltage of a power conversion circuit, including: a first switch, having a control end and two channel ends, the control end being coupled to a gate signal, and one of the two channel ends being coupled to a voltage signal, wherein the voltage signal is proportional to a negative version of the input voltage when the gate signal is active; an inverting amplification circuit, having an input end coupled to the other one of the two channel ends, and an output end for providing a first processed voltage; and a first sample and hold circuit, having a control input end coupled to the gate signal, an input end coupled to the first processed voltage, and an output end for providing a first sample voltage. | 03-15-2012 |
20120182001 | LOW INPUT VOLTAGE BOOST CONVERTER OPERABLE AT LOW TEMPERATURES AND BOOST CONTROLLER THEREOF - A low input voltage boost converter operable at low temperatures, comprising a boost controller and an NMOS transistor. The boost controller has a driver unit, a first inverter circuit, a second inverter circuit, and a comparator circuit, wherein the first inverter circuit is used to enhance the high level of a switching signal during a startup period. | 07-19-2012 |
20120306404 | LED DRIVER CIRCUIT - An LED driver circuit, including: an LED load, having a top end, a middle end, and a bottom end, wherein the top end is coupled to a line voltage; and a variable load device, having a first input end, a second input end, and an output end, wherein the first input end is coupled to the middle end of the LED load for receiving a first current, the second input end is coupled to the bottom end of the LED load for receiving a second current, and the output end is for providing an output current, which equals the sum of the first current and the second current, and wherein the first current increases/decreases as the second current decreases/increases. | 12-06-2012 |