Other

Wistron Corporation

Computech International Ventures Limited

Singim International Corporation

I-Ming Chen

Ming-Tung Shen

Kun-Liang Lai

Hsin-Chun Lee

Chun-Kuan Liu

Shih-Chuan Huang

Yi-Hung Chen

Chang-Yi Hsueh

Yao-Tsung Chen

Chien-Ju Tu

A microphone device, a telephone device, and a decoupling circuit are provided. The decoupling circuit includes a first capacitor, a first resistor, and a switch. A first terminal of the first capacitor is coupled to a first terminal of an audio source. A first terminal of the first resistor is coupled to a second terminal of the first capacitor, and a second terminal of the first resistor is coupled to a second terminal of the audio source. A first terminal of the switch is coupled to the second terminal of the first capacitor and the first terminal of the first resistor, and a second terminal of the switch is coupled to the second terminal of the audio source. The first capacitor and the first resistor are configured to absorb noise generated by the switch during switching.

Microphone device, telephone device, and decoupling circuit

A powered device powered by power over Ethernet, PoE, and DC power supply comprises a DC supply circuit, for providing a power required by the powered device, to the powered device via a DC adapter, a PoE circuit, for providing the power to the powered device via a power source equipment, PSE, and a monitoring circuit, connecting with the DC supply circuit and the PoE circuit, for outputting the power to the powered device from the DC supply circuit or the PoE circuit with at least one of a plurality of metal-oxide-semiconductor field-effect transistors, MOSFETs, and bipolar junction transistors, BJTs.

Monitoring circuit for powered device supplied with power over ethernet

A spring-assisted cordless roller shade without clutch system includes a tubular body defining an internal space. A shade is wound on the tubular body. The internal space has a first section and a second section. In each of the first and second sections are mounted a connector, a central shaft assembled with the connector, a fixing member connected with the central shaft and a subsidiary shaft disposed on the fixing member. An elastic member is disposed between the connector and the central shaft to provide a frictional force. A rotational member and a torsion spring are mounted on the subsidiary shaft of the first section and rotatable along with the tubular body. A constant force belt spring module is assembled with the subsidiary shaft of the second section. When the operational force applied to the shade disappears, the shade is immediately located.

Spring-assisted cordless roller shade without clutch system

The test board serves as an interface for testing a conference phone. The test board includes a plurality of test channel selectors. Each of the test channel selectors receives a plurality of test voltages provided by the conference phone and a first and a second control signals. The test voltages are divided into a plurality test voltage pairs, and each of the test channel selectors selects one of the test voltages in each of the test voltage pairs for generating a plurality of selected voltages according to the first control signal. Each of the test channel selectors selects two of the selected voltages for generating a first and a second output voltages according to the second control signal, where the first and the second output voltages are transmitted to a test machine for testing the conference phone.

Test board

A test board system and method for a power over Ethernet device are disclosed. The test board includes a direct current (DC) power terminal connected to a DC power supply, and includes a network connector, a detection circuit and a classification circuit. The detection and classification circuits are coupled to the network connector and both receive a DC voltage derived from the DC power supply. During different time stages, the detection circuit provides different impedances between the DC power terminal and the network connector. A voltage variation at a test terminal coupled with the network connector shows whether a powered device is connected to the network connector. During a classification stage, the classification circuit provides an impedance device between the DC power terminal and the network connector to build a current path, and classifies the powered device based on a current flowing through the current path.

Test board, test system and test method for a power over ethernet device

An LED bulb comprises a lamp cup, a substrate, a power connecting part, and a cover plate. The lamp cup is a two-piece structure; a power driver is further disposed in the power connecting part. The substrate is disposed in the lamp cup, while the power connecting part connects with the lamp cup. When the light sources and the power structure generate heat, the generated heat can be transferred outwards and dissipated through the lamp cup or the power connecting part. Because the heat generated by both of the heat sources in the lamp cup, respectively, the co-heating effect induced by the light sources and the power driver can be avoided. The overall structure is manufactured by materials having superior thermal conductivity. Thereby, with the structure, heat dissipating process can be accelerated. The lifetime of the light sources can be improved substantially.

Light emitting diode bulb with a cup-shaped heat dissipating structure

A telephone device includes a base, a light transmitter, a light penetrating element for penetrating light transmitter from the light transmitter, and a handset. When an end of the handset is on-hook with the base, the end of the handset reflects the light emitted from the light transmitter and penetrating through the light penetrating element back to the light penetrating element. The telephone device further includes a light receiver for receiving the light reflected from the handset when the end of the handset is on-hook with the base, a light concentrating element for concentrating the light emitted from the light transmitter to the light penetrating element, and a control unit for determining whether the end of the handset is on-hook with the base according to whether the light receiver receives the light reflected from the handset.

Telephone device for detecting status of a handset with light detection

A mobile memory card adapter includes a housing having an insertion hole, a circuit board that is accommodated in the housing and has a fixed connection interface extending out of one end of the housing and a movable adapter interface connected thereto with a cable and extendable to the outside of the housing at a distance, and multiple conducting terminal sets each having an insulative block detachably fastened to the circuit board and multiple metal conducting terminals kept in contact with respective conducting contacts of the circuit board and suspending in the insertion hole of the housing for the contact of a corresponding memory card that is selected by the user and inserted into the insertion hole to let the inserted memory card be electrically connected to an external electronic device through the fixed connection interface or the movable adapter interface.

Mobile memory card adapter

A USB connector type memory card adapter is disclosed to include a metal shield covered with a cover shell having a memory card insertion hole and insertable into a USB jack of an electronic apparatus, a USB connector unit mounted inside the metal shield and electrically connectable to the USB jack into which the metal shield is inserted, and a memory card module longitudinally connected to the rear end of the USB connector unit in a flush manner inside the metal shield and electrically connected to the USB connector unit for receiving the inserted memory card and electrically connecting the inserted memory card to the USB connector unit.

USB connector type memory card adapter

Cover used in electronic apparatus

Card reader

Flash memory device

An optical disk includes a disk body and a cap body. The disk body has a first surface adapted to be printed thereon, and a second surface opposite to the first surface and adapted to store optical data. The first surface is formed with a central cap-receiving recess that extends downwardly and that has an inner annular surface and a recess bottom. The second surface is formed with a shaft-receiving recess that extends upwardly and that is communicated with the cap-receiving recess. The cap-receiving recess has an area larger than that of the shaft-receiving recess. The cap body is received in the cap-receiving recess, and has a top side adapted to be printed thereon, and a peripheral portion on the recess bottom. The cap body is movable from a normal position, where the top side of the cap body is flush with the first surface of the disk body, to a position of use, where the cap body protrudes relative to the first surface of the disk body.

Optical disk

The present invention provides a small-scaled portable electrical power generator comprising a base, which includes an assembly surface, a fuel chamber, and at least one fuel delivery channels connected to the fuel chamber and placed under the assembly surface; a power generation means which includes at least one solar battery packs placed on the assembly surface of the base, a solar battery pack contains two opposing solar batteries which face each other with their light-collecting surfaces and their power outputs being connected; a light generation means placed on the assembly surface of the base, which includes at least one hollow tube that is placed in-between the solar batteries of the solar battery packs and includes at least one hollow tube capable of capillarity that is connected to the at least one fuel delivery channels so that fuel can always be filled into them; and an igniting means which includes at least one operative igniters placed nearby the at least one hollow tubes, and can be manipulated to ignite the fuel inside the hollow tubes.

Small-scaled portable electrical power generator

A method for manufacturing a semiconductor device includes the steps of forming a first conductive bump on a substrate, forming a second conductive bump on a semiconductor chip, forming a plurality of spaced apart dielectric supporting pads on one of the substrate and the semiconductor chip, mounting the semiconductor chip on the substrate to confine therebetween a gap, bonding together the first and second conductive bumps, and forming an insulating layer that fills in the gap and that encapsulates the supporting pads and the first and second conductive bumps.

Growing community of inventors

Taipei, Taiwan

I-Ming Chen