77results about How to "Reduce product size" patented technology

An inductorless LED driver powers a string of low current LEDs. A phase controlled triac dimmer, serially connected to a full-wave rectifier circuit, performs as an LED current and triac holding current control element. The output of the full-wave rectifier circuit is divided into two circuit paths; the first path provides power to drive a string of serially-connected low-current LEDs, and the second path connects to a dynamic load, which supplies a holding current that flows through the triac dimmer. There are two feedback control systems; the first regulates the luminance of the LEDs; the second regulates the triac holding current to eliminate lamp flicker.

A chip embedded packaging structure includes a first metal board, a second metal board having at least a through cavity, in which the second metal board is disposed on the upper surface of the first metal board to form a heat dissipating substrate, at least a semiconductor chip and a capacitor chip embedded in the first metal board and embraced in the through cavity of the second metal board, a passive component layer disposed on part of the upper surface of the second metal board, and at least a build-up circuit layer covering the semiconductor chip, the capacitor chip, and the passive component layer and electrically connecting them through a plurality of conductive vias.

A dust collecting device includes a tank and a main body housing a motor and detachably attachable to an upper part of the tank. A handle and a cover are both provided in an upper part of the main body. The handle is capable of being raised and turned down around a handle rotation shaft. The cover is capable of being opened and closed around a cover rotation shaft and covers a housing portion provided in the main body in a closed position. The cover rotation shaft is provided in parallel to the handle rotation shaft. The cover rotation shaft is positioned closer to a grip portion of the handle than the handle rotation shaft so as to overlap with a part of the handle. The handle rotation shaft is positioned closer to the cover than the cover rotation shaft so as to overlap with a part of cover.

A leakage current interrupter is provided. The leakage current interrupter includes: a leakage current detector having resistors connected to the external metal cover of the power cable, and generating a voltage corresponding to a leakage current through the resistors when the leakage current flows through the external metal cover of the power cable; a power source connected to the power line and the neutral line to generate DC power when AC power is applied through the power line and the neutral line; a power interrupter opening the power line and the neutral line when the DC power is applied; and a controller applying the DC power to the power interrupter when the leakage current detector generates a voltage. Therefore, it is possible to reduce manufacturing cost, and to provide a self-test function to the leakage current interrupter to increase the operation reliability of the leakage current interrupter. Therefore, it is possible to reduce manufacturing cost, and to provide a self-test function to the leakage current interrupter to increase operation reliability of the leakage current interrupter.

The electromagnetic-induction system of the present invention comprises: a central processing unit (CPU); an application specific integrated circuit coupled with the central processing unit; a plurality of analogy switches that are coupled with the central processing unit and the application specific integrated circuit, individually; an antenna loop coupled with a plurality of analogy switches. The application specific integrated circuit further comprises: a digital filter that can reduce bandwidth error; a programmable gain amplifier that has the gain range with over eight-level; a latch device that can access the data at steady state; a multiplier and a divider that consist of hardware to increase the report rate; a programmable frequency generator can output the signal with the stable frequency.

An optical image stabilizer for a camera lens assembly is disclosed, wherein the stabilizer includes a housing; a board disposed movably in the housing, the board and the housing being spaced apart from each other; an image sensor disposed on the board for transforming image information inputted thereto into electric signals; a plurality of wire frames for supporting the board, wherein both ends of each wire frame are coupled to the housing and the board, respectively; and a driving unit for correcting the position of the image sensor by moving the board according to degrees of trembling of user's hands. The driving unit on which an image sensor is mounted is present substantially on the same surface as the board itself, thereby allowing the downsize of a camera lens assembly.

A method of fabrication of a semiconductor integrated circuit device, including polishing the entire area of an edge of a wafer, for example, uses three polishing drums in which a polishing drum polishes the upper surface of the edge of the wafer, a polishing drum polishes the central portion of the edge of the wafer and a polishing drum polishes the lower surface of the edge of the wafer, thereby preventing occurrence of obstacles which cause defoliation of thin films on the edge of the wafer.

An HDMI cable connector, comprising a connector main body and a shell covering the rear of the main body, the connector main body includes a terminal group and an insulating body, an insulating housing for accommodating the contact portion of the front section of the terminal group, and connecting the terminal welding section Cables to the distribution base, sleeve the insulating shell to the metal front shell of the insulating body, and the metal rear shell that encapsulates the welding section of the terminal to the wire distribution base, wherein the terminal group and the insulating body are integrated into the mold for injection molding A component, the single terminal in the one-piece component includes a contact section and a fixing section connecting the welding section, the insulating body in the one-piece component includes a first insulator and a second insulator; the insulating housing includes a basic part and its extended In the docking part, the back of the basic part runs through to the docking port in front of the docking part, and an inner cavity is provided. The inner cavity is provided with a terminal slot and penetrates with the notch on the front docking port. Through the above concept, a HDMI Design and construction of cable connectors.

A cylindrical pre-molded rubber insulation tube made by a plurality of layers using a rubber material as a base material has in a central part and at both ends of an inner periphery thereof a sheet-shaped electrode layer formed at an insde thereof with a semi-conductive rubber layer and at an outside thereof with a high-permittivity rubber layer, as an inner electrode layer configured with the semi-condutctive rubber layer to be thin and sheet-shaped and the high-permittivity rubber layer covering a vicinity of a respective distal end of the semi-conductive rubber layer, and the distal end of the semi-conductive rubber layer is rounded by a radius of curvature substantially equal to half the thickness.

The invention provides a multi-frequency antenna device comprising a first metal layer, a second metal layer, a ground layer, and dielectric substrates positioned between the metal layers and betweenthe metal layer and the ground layer, wherein a metamaterial layer is arranged between the first metal layer and the second metal layer. According to the multi-frequency antenna device, the problem ofcontradiction among high gain, small interference and small size, which is difficult to overcome, in a traditional stacked antenna preparation method is solved, the extremely good frequency band isolation property is achieved via flexible and ingenious arrangement of the antenna wiring and the coupled isolation unit; the metamaterial unit is arranged between the two antenna metal layers, so thatthe antenna size is further reduced and the isolation between high frequency and low frequency is enhanced via the special conduction property of the metamaterial.

The invention discloses a supercritical water cooled reactor fuel assembly which comprises a shell assembly and a core body arranged inside the shell assembly and is characterized in that the fuel assembly is divided into an upper part and a lower part; the upper shell assembly is made of nickel base alloy or stainless steel and the lower shell assembly is made of zirconium alloy; and 235U enrichment degree of the upper core body is greater than 235U enrichment degree of the lower core body. The invention also discloses a supercritical water cooled reactor single-path reactor core. The invention has advantages as follows: packing volume of 235U is reduced and economical efficiency is high; complexity of the reactor core structure is decreased and the flow induced vibration increasing problem caused by a multipath structure is also solved; and it is beneficial to structural integrity of the fuel assembly.

The embodiment of the invention provides defective pixel shielding method and system, and aims at solving the problem that the storage of a defective pixel table is limited and the manufacturing cost of a chip is increased due to the limitation on the size of an SRAM in the chip in the prior art. The defective pixel shielding method comprises the following steps: storing the defective pixel table into an external storage of the chip; reading the defective pixel coordinate in the defective pixel table from the outer storage of the chip into an inner storage of the chip; shielding and processing display data falling into the defective pixel coordinate according to the defective pixel coordinate stored in the inner storage of the chip; removing the shielded and processed defective pixel coordinates in the inner storage of the chip; continuously reading the defective pixel coordinate from the outer storage of the chip and then storing into the cleared storage space in the inner storage of the chip.

The invention belongs to the technical field of wind power generation and relates to a wind power generation hydraulic control shifting voltage stabilizer. According to the wind power generation hydraulic control shifting voltage stabilizer, automatic gearshift can be achieved, and the range of wind speed adaptation of a wind motor is remarkably improved. The wind power generation hydraulic control shifting voltage stabilizer comprises a three-level planet gear transmission mechanism, a gearshift actuating mechanism, a hydraulic control system, a speed increaser and an adjustable torque converter, a first level sun wheel is connected with a driving disc of a direct gear clutch, a first level gear ring is connected with a second level planetary frame, a second level gear ring is connected with a third level planetary frame, a first level planetary frame, a driven disc of the direct gear clutch and a second level sun wheel are respectively connected with an output shaft of the speed increaser, a centrifugal speed regulating valve is arranged on the output shaft of the speed increaser, a speed increasing gear brake is arranged on the side of the driving disc of the direct gear clutch, a third level gear ring is connected with a turbine of the torque converter, a third level sun wheel and a pump wheel of the torque converter are respectively connected with a generator input shaft, and each level of planet wheels is meshed with one corresponding sun wheel and one corresponding gear ring which are at the same level and is connected with one corresponding planetary frame at the same level through a bearing.

A package structure module with high density electrical connections includes a drive IC structure, an LED array structure, and a plurality of conductive structures. The drive IC structure has a plurality of first open grooves formed on a lateral wall thereof. The LED array structure has a plurality of second open grooves formed on a lateral wall thereof to respectively face the first open grooves. Each conductive structure traverse the corresponding first open groove and the corresponding second open groove in order to electrically connect between the drive IC structure and the LED array structure.

The invention provides a making method of a multi-frequency antenna device. The multi-frequency antenna device comprises a first metal layer, a second metal layer, a grounding layer, and dielectric substrates located between the metal layers and between the metal layers and the grounding plate respectively. The multi-frequency antenna device is characterized in that a meta-material layer is arranged between the first metal layer and the second metal layer. The contradiction of high gain, low interference and small size which can be hardly overcome by the traditional method of making a stackedantenna is solved. Through flexible and skillful setting of antenna wiring and a coupling isolation unit, very good frequency band isolation characteristic is realized. The meta-material layer is arranged between the two metal layers of the antenna. Through the special conduction characteristic of the meta-material, the size of the antenna is reduced, and the isolation between high and low frequencies is improved.

The invention discloses a wavelength locker and a wavelength-tunable laser. The wavelength locker comprises a beam splitter for splitting an input light wave into two beams of light, a first photodiode for receiving a first beam of light split by the beam splitter and outputting a reference signal, a filter for filtering a second beam of light split by the beam splitter, and a second photodiode for receiving an optical signal outputted by the filter and outputting a transmitting signal. According to the invention, the wavelength locker based on the SOI chip has advantages of high integration,low process complexity and low cost; and the wavelength stability of the laser can be improved. The wavelength locker has the fineness higher than that of the existing F-P etalon by dozens of times; the overall structure is smaller than that of the exiting commercially available wavelength locker; the compactness is high; all wavelengths of the wavelength-tunable laser within a tuning range can belocked; and the stability of the output wavelength is improved.

The present invention discloses a touch panel and an operation method thereof. The Touch panel comprises a touch circuit, a substrate, a first metal layer, at least a light emitting diode, and a second metal layer, wherein the touch circuit is used for providing a touch scanning signal, the first metal layer is disposed at a side of the substrate, the light emitting diode is provided with a first end and a second end, the first end of the light emitting diode is coupled to the first metal layer in an electrical manner; the second metal layer is coupled to the second end of the light emitting diode and the touch circuit, and the touch control circuit transfers a touch control signal to the second metal layer; the first metal layer and the second metal layer are disposed at two opposite sides of the light emitting diode, and the first metal layer and the second metal layer are used for transmitting the current that goes through the light emitting diode.

The invention relates to a flat-plate reaction force vehicle brake testing device, which includes a vehicle fixing device and at least one vehicle braking force testing unit. The vehicle braking force testing unit includes a bearing bracket, and a front support wheel and a rear support wheel are rotatably mounted on the bearing bracket. wherein at least one of the supporting wheels is a driving wheel, and the front and rear supporting wheels are wound with endless transmission belts for friction and rolling cooperation with the corresponding wheels of the vehicle. The braking force detection sensor of force, the car fixing device includes a pulling mechanism for applying a pulling force in a forward direction to the car. The invention solves the problem that the flat counter force type automobile brake inspection device in the prior art occupies a large area.