21st week of 2013 patent applcation highlights part 34 |
Patent application number | Title | Published |
20130128584 | LASER LIGHT SOURCE DEVICE - In an exemplary embodiment, a laser light source device includes a laser light source that emits laser light from a laser emission aperture. The laser light source device also includes a condenser lens disposed in front of the laser light source in a laser emission direction to collect the laser light. The laser light source device also includes a fluorescent member disposed in front of the condenser lens in the laser emission direction to receive the laser light collected by the condenser lens and to emit light of a different wavelength from that of the laser light. The laser light source device also includes a light guide that forms a light path of laser light from the laser light source to the condenser lens. | 2013-05-23 |
20130128585 | MICRO DEVICE ARRAY - A micro light emitting diode (LED) and a method of forming an array of micro LEDs for transfer to a receiving substrate are described. The micro LED structure may include a micro p-n diode and a metallization layer, with the metallization layer between the micro p-n diode and a bonding layer. A conformal dielectric barrier layer may span sidewalls of the micro p-n diode. The micro LED structure and micro LED array may be picked up and transferred to a receiving substrate. | 2013-05-23 |
20130128586 | LIGHTING DEVICE - A lighting device includes a light emitting module including a substrate and a light emitting device mounted on the substrate; a case body receiving the light emitting module; a gap member contacting the case body and wider than the substrate; a lens on the light emitting module and contacting the gap member; a first ring provided on a peripheral portion of the lens; and a case cover coupled with the case body and having an opening, wherein the case body is provided therein with a coupling cavity in which the gap member is seated, and wherein the lens includes a first portion between the ring and the gap member and a second portion that extends outward from the first portion through the opening of the case cover. | 2013-05-23 |
20130128587 | PRESSURE SENSITIVE ILLUMINATION SYSTEM - Implementations of the present disclosure provide a human interface including a light emitter and a pressure sensitive material. The pressure sensitive material has electrical properties configured to vary in relation to an amount of pressure applied thereto. The light emitter is coupled to the pressure sensitive material, wherein variation of the electrical properties of the pressure sensitive material causes variation of at least one illumination characteristic. Advantageously, the pressure sensitive material provides an additional control component allowing bundling of controls in a simpler interface. At the same time, operation of the human interface in low-light or distracted environments is facilitated and rendered more intuitive by incorporation of the light emitter into its operation. | 2013-05-23 |
20130128588 | OPTICAL SEMICONDUCTOR LIGHTING APPARATUS - An optical semiconductor lighting apparatus including a housing with a first end portion and a second end portion that is open, a light source module disposed in the housing, a fan disposed adjacent to the light source module in the housing, the fan rotating in a first direction to blow air toward the light source module, and a reflector disposed adjacent to the second end portion of the housing, the reflector enhancing an illumination scope. A moving path, in which at least a portion of the air drawn into the housing by the fan externally flows through the light source module, is formed in the housing. | 2013-05-23 |
20130128589 | OPTICAL SEMICONDUCTOR LIGHTING APPARATUS - An optical semiconductor lighting apparatus including a housing with a first end portion and a second end portion that is open, a light source module disposed in the housing, a fan disposed adjacent to the light source module in the housing, the fan rotating in a first direction to blow air toward the light source module, and a reflector disposed adjacent to the second end portion of the housing, the reflector enhancing an illumination scope. A moving path, in which at least a portion of the air drawn into the housing by the fan externally flows through the light source module, is formed in the housing. | 2013-05-23 |
20130128590 | LED UNIT - A light emitting diode (LED) unit having a lens producing parallel light beams is disclosed. The LED unit comprises an LED; and a lens comprising a light incident face facing the LED, a light emergent face away from the LED, and a light reflecting face between the light incident face and the light emergent face; the light incident face comprises a first light incident face over the LED, and a second light incident face encircling the LED; and the light emergent face comprises a first light emergent face corresponding to the first light incident face, and a second light emergent face corresponding to the second light incident face, wherein the first light emergent face, relative to the first light incident face, is lower than the second light emergent face. | 2013-05-23 |
20130128591 | BALUSTER MOUNTING SYSTEM WITH ELECTRICAL ACCESSORY PORT - A baluster mounting system includes removably locking a baluster between oppositely disposed upper and lower surfaces. A first rail connector is fixed relative to either an upper or lower surface. A second rail connector is fixed relative to either the upper or lower surface which is opposite the first rail connector. A baluster is removably locked between the first and second rail connectors. The first rail connector is configured to slidably receive an end of the baluster and the second rail connector is configured to laterally receive an opposite end of the baluster. The baluster includes an accessory port that is electrically connected to an electrical cord in a channel of the first baluster connector. | 2013-05-23 |
20130128592 | Reflector Plate and Backlight System - The present invention provides a reflector plate and a backlight system. The backlight system includes a reflector plate and a back frame and the back frame carries the reflector plate. The back frame includes at least two primary assembling pieces, the at least two primary assembling pieces being joined to form a main frame structure of the back frame; and the reflector plate has a bottom to which a metal net is mounted for preventing electromagnetic interference. With the above arrangement, the backlight system of the present invention has a back frame having a simple structure, saving material for the back frame, and reducing the cost of the back frame. Further, the present invention integrates a metal net mounted to a bottom of a reflector plate for preventing electromagnetic interference so that a backlight system or device that uses a joined back frame of the present invention can achieve the purpose of preventing electromagnetic interference with an easy manner and thus further reduce the manufacturing cost of backlight system. | 2013-05-23 |
20130128593 | PORTABLE ELECTRONIC DEVICE - A portable electronic device includes a housing portion, a number of light emitted diodes (LEDs) received in the housing portion, and an anti-static structure. The housing portion defines a plurality of through holes. The anti-static structure is positioned between the housing portion and the LEDs, and defines a plurality of recesses corresponding to the through holes. The anti-static structure is made from anti-static and transparent material; the LEDs are separated from the housing portion by the anti-static structure. Each LED is received within the corresponding recess, static charges on the housing portion are discharged to ground, and the light emitted from the LEDs is emitted out of the portable electronic device along the recesses, the anti-static structure, and through the through holes for user observation. | 2013-05-23 |
20130128594 | WELD-FREE OPTICAL SUB-ASSEMBLY FOR TRANSCEIVERS FOR LIGHT-EMITTING UNIT - A weld-free optical sub-assembly for transceivers for light-emitting unit includes: a main housing including a flange end section, several threaded holes being formed on the flange end section; a light-emitting unit; and a locking structure including a collar. The collar has a sleeve sectionpositioned in the flange end section of the main housing. The sleeve section defines an inner hole for receiving the light-emitting unit. The locking structure further includes several screws. The screws are screwed into the threaded holes of the main housing until the sleeve section is inward recessed to form several locking sections in tight contact with the light-emitting unit, whereby the light-emitting unit is packaged in the main housing. | 2013-05-23 |
20130128595 | ARTISTIC FORMATIVE LAMPSHADE ASSEMBLY - An artistic formative lampshade assembly comprises a longitudinal support body, a fabric cover, and a transverse support body, wherein the longitudinal support is a flat body or a rod and the transverse support body formed into a circular or rectangular shape by a butt joint structure. Further, the fabric cover is made of a transparent, flexible, soft fabric. The transverse body set into the fabric cover hitches the buckles on the fabric cover and the hooks on the both ends of the longitudinal support so that the longitudinal support body is encircled by the transverse support body to form a cubical space. Therefore, the light bulb in the center of the fabric cover can keep a safety distance from the upper covering body and lower covering body. The present invention is easy to pack and transport, and enables the light illuminates evenly for both practical use and ornamental art. | 2013-05-23 |
20130128596 | LED BULB - An LED bulb includes a connector for electrically connecting with a power supply, a heat sink disposed on the connector, and an LED mounted the heat sink. The heat sink has a first face and a second face opposite to the first face. The LED is attached on a first face of the base. The heat sink defines a plurality of through tunnels extending through the heat sink from the first face to the second face thereof. | 2013-05-23 |
20130128597 | MAGNETIC RETAINER WITH ILLUMINATION DEVICE - A magnetic retainer includes a body, a magnetic member, a plate and a light unit. The body has a space for receiving objects and the magnetic member is connected to the bottom of the body to attract the objects. The plate has a concaved portion for receiving the objects and is rotatably connected to the body. When the light unit is rotated to a first position relative to the plate, the light emitting member faces outside of the plate. When the light unit is rotated to a second position relative to the plate, the light emitting member faces the concaved portion of the plate. | 2013-05-23 |
20130128598 | PORTABLE COMPUTER - A portable computer is disclosed, wherein the portable computer includes a display, an illumination device, a main body, and a driving device. The main body is pivotally connected to the display. The illumination device is disposed in the display. The driving device disposed in the display and connected to the illumination device is used for driving the illumination device to rotate. | 2013-05-23 |
20130128599 | APPARATUS AND METHOD FOR CONTROLLING HEAD LAMP OF VEHICLE - An apparatus and a method for controlling a head lamp of a vehicle are disclosed. The apparatus includes one or more processors configured to: determine whether at least one of a low beam and a high beam is turned on; select at least one of a plurality of pieces of control information for controlling an illumination pattern according to the determination result; and control the illumination pattern according to the selected control information. | 2013-05-23 |
20130128600 | MARITIME LIGHT SOURCE - The present invention relates to a maritime light source comprising a bottom housing and a attached thereto. The lid comprises an integrated lens portion and a button portion, wherein the lens portion is adapted to scatter light from an associated light source over an angle of at least 160 degrees in a substantially uniform manner. The button portion comprises an integrated and flexible push button membrane. A water proof sealing is formed between the bottom housing and the lid. | 2013-05-23 |
20130128601 | INTEGRATED LAMP DEVICE OF VEHICLE SIDE MIRROR - Provided herein is an integrated lamp device of a vehicle side mirror. The integrated lamp device includes a first light source illuminating a first direction; a second light source illuminating a second direction; and a printed circuit board (PCB) assembly including a first PCB on which the first light source is mounted and a second PCB on which the second light source is mounted, wherein the first PCB and the second PCB are integrated with each other. | 2013-05-23 |
20130128602 | LIGHTING DEVICE FOR VEHICLES - A lighting device for vehicles with a number of light sources and with an optic unit to generate a predetermined light distribution, with the optic unit comprising at least one optic area, held via holding means in a predetermined assembly position, with a transparent substrate being provided with a plurality of grooves as fastening means so that an edge of the optic area can be framed in the groove. | 2013-05-23 |
20130128603 | VEHICLE HEADLAMP SYSTEM - A vehicle headlamp system includes a lamp device and a control device to control the brightness thereof while in operation. The lamp device includes at least a first light emitting diode unit providing a first color temperature, and at least a second light emitting diode unit providing a second color temperature different from the first color temperature. The control device is coupled to the lamp device for changing the brightness ratio of the second LED unit to the first LED unit and controlling the resulting color temperature of the lamp device. | 2013-05-23 |
20130128604 | Flat Panel Display Device and Stereoscopic Display Device - The present invention provides a flat panel display device, which includes a backlight system and a display panel. The backlight system includes a reflector plate and a back frame that carries the reflector, wherein the back frame includes at least two primary assembling pieces, the at least two primary assembling pieces being joined to form a main frame structure of the back frame; and the reflector plate includes a substrate layer and a reflection layer formed on the substrate layer, the substrate layer having a surface that is away from the reflection layer and comprises an ink layer printed thereon. The present invention also provides a stereoscopic display device. With the above arrangement, the present invention provides a flat panel display device and a stereoscopic display device having an ink layer printed on the surface of the substrate layer that is away from the reflection layer in order to eliminate light leakage from the surface of the reflector plate that faces the back frame, reduce the potential risk of light leakage after the assembling of the backlight system, and thereby improve the performance of the flat panel display device and the stereoscopic display device. | 2013-05-23 |
20130128605 | Flat Panel Display Device, Stereoscopic Display Device, And Plasma Display Device - The present invention provides a flat panel display device. The flat panel display device includes a backlight system and a display panel, wherein: the backlight system includes a light source, a light homogenization mechanism, and a back frame; the back frame carries the light source and the light homogenization mechanism and the back frame includes at least first and second primary assembling pieces, wherein the first primary assembling piece has an end forming at least two joint sections, each of the joint sections having a structure mating an end of the second primary assembling piece, the first primary assembling piece using one of the joint sections to join the corresponding end of the second primary assembling piece. The primary assembling pieces include an elastic member arranged on a portion of an upper surface thereof in a lengthwise direction. The present invention also provides a stereoscopic display device and a plasma display device. The flat panel display device, the stereoscopic display device, and the plasma display device of the present invention include an elastic member arranged on a portion of an upper surface of the primary assembling pieces so that the back frame can well support a light homogenization mechanism and protect the light homogenization mechanism from violent shakes. | 2013-05-23 |
20130128606 | LIGHT-EMITTING MODULE, BACKLIGHT ASSEMBLY HAVING THE SAME AND DISPLAY APPARATUS HAVING THE SAME - A light-emitting module includes a light source, a printed circuit board (“PCB”) and a light absorption portion. The light source generates and emits a light, and the light source is on a first surface of the PCB. The light absorption portion is on the first surface of the PCB and absorbs the light. | 2013-05-23 |
20130128607 | Methods, Systems, and Products for Illuminating Displays - Methods, systems, and products illuminate display devices. Light is injected into a tapered portion of a waveguide. The tapered portion reflects the light to create total internal reflectance in the waveguide. The light in the waveguide is frustrated and frustrated light is directed onto an array of picture elements. The frustrated light illuminates the array of picture elements. | 2013-05-23 |
20130128608 | LED LIGHT FIXTURE - The instant disclosure relates to a LED light fixture, which includes a mounting seat, a lighting module, a light guiding assembly, a retainer, and a panel. The mounting seat has a base and an annular side wall cooperatively defining a recess. The lighting module abuts the side wall and is disposed around the light guiding assembly. The retainer abuts the light guiding assembly and retains the light guiding assembly on the mounting seat. The panel is disposed between the light guiding assembly and the base, with the periphery of the panel abutting the engaging shafts. Thereby, the interaction between the retainer and the mounting seat enables the user to assemble or dismantle the light fixture with more ease. | 2013-05-23 |
20130128609 | LIGHT GUIDING PLATE, BACKLIGHT MODULE AND DISPLAY DEVICE - A light guiding plate and a backlight module and a display device applying the light guiding plate are provided, in which a structure of prisms on a light emergence surface of the light guiding plate is designed by, for example, adopting a mixed structure of prisms in different specifications, regulating the specifications of the prisms, such as a vertex angle and a corresponding reprint ratio, varying the reprint ratio of the prisms with respect to a distance from a light incident surface of the light guiding plate, or combining the aforementioned design solutions, thereby adjusting a light emitting effect of the light guiding plate, increasing uniformity of backlight, and improving display quality of the display device. | 2013-05-23 |
20130128610 | PLANE LIGHT SOURCE AND FLEXIBLE PLANE LIGHT SOURCE - A plane light source including a circuit substrate, a plurality of sets of side-view light-emitting devices (LEDs), and a diffusive light-guiding layer is provided. The side-view LEDs are arranged in array over the circuit substrate and are electrically connected with the circuit substrate. The diffusive light-guiding layer covers the side-view LEDs, wherein the diffusive light-guiding layer includes a plurality of diffusive light-guiding units arranged in array and connected to each other. Each of the diffusive light-guiding units is respectively corresponded to illumination coverage of one set of side-view LEDs. Each set of side-view LEDs at least includes two side-view LEDs for emitting light respectively along two different directions and towards into one single diffusive light-guiding units. | 2013-05-23 |
20130128611 | LIGHT BEAM EXPANDING DEVICE, IMAGE DISPLAY DEVICE, AND OPTICAL DEVICE - An image display device includes an image generating device, a light guide unit, and a light beam expanding device. The light guide unit includes a light guide plate, a first deflector, and a second deflector. The light beam expanding device expands a light beam incident from the image generating device along the Z direction and outputs the light beam to the light guide unit when the incident direction of light incident on the light guide plate is defined as the X direction and the propagation direction of light in the light guide plate is defined as the Y direction. The light beam expanding device is composed of a first reflective mirror on which light from the image generating device is incident and a second reflective mirror on which light from the first reflective mirror is incident and that outputs light to the light guide unit. | 2013-05-23 |
20130128612 | Backlight System - The present invention provides a backlight system, which includes a reflector plate, a light guide plate, and a back frame. The reflector plate and the light guide plate are stacked on the back frame and the back frame carries the light guide plate and the reflector plate. The back frame includes at least two primary assembling pieces, the at least two primary assembling pieces being joined to form a main frame structure of the back frame; and lifting adhesive spots are formed between the reflector plate and the light guide plate. The backlight system of the present invention has a back frame having a simple structure, saves material for the back frame, and reduces the cost of the back frame so as to lower down the cost of flat panel display device. Further, the present invention arranges lifting adhesive spots between the reflector plate and the light guide plate so as to provide a lifting effect on the reflector plate and bond the reflector plate to the light guide plate, thereby alleviating the problem that easy collapse of the reflector plate occurring after assembling leads to poor quality of reflection and causes poor backlighting. | 2013-05-23 |
20130128613 | Backlight Module of Display Device - The present invention provides a backlight module of display device, which includes: a back panel, a reflection hood arranged on the back panel, a backlight source arranged on the reflection hood, a reflector board arranged on the back panel, a light guide plate arranged on the reflector board, and a plastic frame coupled to the back panel and the light guide plate. Light emitting from the backlight source is reflected by the reflection hood into the light guide plate. The reflection hood includes a reflection section, an abutment section connected to the reflection section, and a bearing section connected to the abutment section. The abutment section is positioned against the back panel. The backlight source is mounted on the bearing section. The bearing section is positioned on the back panel. The backlight module of display device according to the present invention provides a light reflection hood to replace manual mounting of reflection surface thereby eliminating the yield problem caused by manual mounting operation and ensuring completeness of light reflection of the backlight source and thus ensuring light emission efficiency of the light guide plate while improving heat transfer performance of the backlight source. | 2013-05-23 |
20130128614 | BACKLIGHT MODULE - A backlight module includes a light guide plate, a wavelength converter, and a light emitter. The light guide plate includes a main body, a first extension portion, and a second extension portion. The first extension portion is connected to the main body. The second extension portion is connected to the first extension portion. The wavelength converter is disposed at a side of the main body. The wavelength converter has an incident surface. The incident surface faces away from the main body. The first extension portion abuts against a sidewall of the wavelength converter. The second extension portion abuts against the incident surface. The light emitter is disposed at a side of the light guide plate. | 2013-05-23 |
20130128615 | BACKLIGHT MODULE AND OPTICAL PLATE THEREOF - A backlight module includes a light guide board, at least one light emitting unit, a plurality of first glues, and a first reflection sheet. The light guide board has a light entrance surface, a light exit surface, and at least one reflection surface. The reflection surface is connected to the light entrance surface and the light exit surface respectively. The light emitting unit is disposed at the light entrance surface of the light guide board. The plurality of first glues is alternatively disposed on the reflection surface in a from-sparse-to-dense manner. The first reflection sheet is disposed on the plurality of first glues such that the first reflection sheet can be fixed onto the reflection surface. | 2013-05-23 |
20130128616 | FOAMING MATERIAL FRAME AND DISPLAY STRUCTURE USING THE SAME - A foaming material frame is provided and can be utilized in a display structure. The foaming material frame includes a base plate and a sidewall. The base plate includes a loading portion and a suppressing portion connected to at least one side of the loading portion. A reflectance of the suppressing portion is smaller than a reflectance of the loading portion. An area of the loading portion is equal to or greater than a display zone of the display structure. The sidewall stands upright around the base plate. A display structure using the foaming material frame is also provided. | 2013-05-23 |
20130128617 | BACKLIGHT MODULE AND ASSEMBLING METHOD THEREOF - A backlight module includes a light guide plate, at least one light emitter, and a wavelength converter. The light guide plate has an incident surface. The light emitter is disposed at a side of the light guide plate and corresponds in position to the incident surface. The light emitter includes a base and a light source. The base includes a clamping arm. The clamping arm substantially extends toward the light guide plate. The light source is disposed on the base. The wavelength converter is located between the light guide plate and the light source and is clamped by the clamping arm. | 2013-05-23 |
20130128618 | Back Frame and Backlight System - The present invention provides a back frame of flat panel display device, which includes primary assembling pieces, secondary assembling pieces, and a bracing piece for fixing a circuit board. The primary assembling pieces have a number of at least two, and the at least two primary assembling pieces are connected through joining to form a main frame structure of the back frame. The secondary assembling pieces are joined to the primary assembling pieces. According to practical needs of the main frame structure, different materials are used for different parts at different locations. The back frame is provided with the bracing piece for fixing a circuit board, and the bracing piece includes a bracing body, a first suspension section, a first bearing section, and a first resilient bent section. The present invention also provides a backlight system. The back frame and the backlight system of the present invention have a back frame having a simple structure, overcome the problem that a circuit cannot be easily fixed, reduce the expenditure of a back frame mold, and save the material used for back frame so as to lower down the cost of flat panel display device. | 2013-05-23 |
20130128619 | Backlight Module and Light Source Module Thereof - A backlight module and a light source module thereof are disclosed. The light source module includes a substrate, at least one first light source, and at least one second light source. The substrate includes a first substrate portion and a second substrate portion. The first substrate portion extends along a length direction, and the second substrate portion bends an acute angle corresponding to an extending surface of the first substrate portion. The at least one first light source and the at least one second light source are disposed on the first substrate portion and the second substrate portion respectively. The acute angle is existed between the light-emitting directions of the first light source and the second light source, and the light-emitting directions are parallel to the first substrate portion. | 2013-05-23 |
20130128620 | VEHICULAR LAMP - Provided is a vehicular lamp that includes a light source and a light guide that guides a light from the light source in the inside thereof. The light guide is formed by an injection molding, and a plurality of reflective elements spaced from each other are formed in the rear surface of the light guide. Each of the reflective elements is formed to protrude from the rear surface of the light guide toward the rear side, and the inner surface of each of the reflective elements internally reflects the light from the light source toward the front surface of the light guide. | 2013-05-23 |
20130128621 | Display Device with Systematic Back Plate - A display device includes a systematic back plate, a backlight module, and a display panel. The systematic back plate includes a first plate and a second plate. The first plate includes a supporting face and a first side, wherein the first side extends to form a bending part. The bending part bends back with respect to the supporting face and extends toward the center of the supporting face, wherein the bending part forms a clamping space with the supporting face. The first plate and the second plate are made of different materials. The second plate includes a connecting end connecting to the boundary of the first side and the bending part. The backlight module is disposed on the supporting face and supported by the supporting face. At least a portion of the backlight module is received in the clamping space. The display panel is disposed above the backlight module. | 2013-05-23 |
20130128622 | POWER CONVERTING APPARATUS - A power converting apparatus makes reduction of power loss possible and operates in a two-phase mode. A power converting apparatus of the inventive concept includes I-shaped block cores, each being made of a magnetic material; and E-shaped cores, each being produced by combining two L-shaped magnetic materials to each of the I-shaped cores. In each of the E-shaped cores, the block core is defined as a central leg, the other two legs are defined as a first outside leg and a second outside leg, respectively, and a closed magnetic path is configured by two E-shaped cores combined such that one of respective central legs in the two E-shaped cores, one of respective first outside legs therein, and one of respective second outside legs therein are caused to face the other of the central legs, the other of the first outside legs, and the other of the second outside legs. | 2013-05-23 |
20130128623 | SWITCHING CONTROL CIRCUIT AND SWITCHING POWER SUPPLY APPARATUS - An external circuit is connected to a polarity detection terminal of a switching control IC. An increased value of the voltage of a pulse signal input to the polarity detection terminal at the time of the activation of a power supply changes in response to this external circuit. Accordingly, owing to the external circuit connected to the polarity detection terminal, the validity/invalidity of a standby mode is set. When the standby mode is validated, a blanking frequency changes in response to the voltage of a feedback terminal, and a switching loss in a light load is reduced. Accordingly, a switching control circuit and a switching power supply apparatus are configured that are able to set the validity/invalidity of the standby mode or select the method of the standby mode without using a dedicated terminal. | 2013-05-23 |
20130128624 | DC/DC CONVERTER - A DC/DC converter has DC input terminals to which a DC power is inputted, a transformer, and a bidirectional switching device on the primary side of the transformer. | 2013-05-23 |
20130128625 | APPARATUS AND METHOD FOR SENSING OF ISOLATED OUTPUT - A power converter includes a current controller coupled to an energy transfer element to selectively enable a first, second or third current in the current controller. The first current is substantially zero, the second current is greater than the third current, and the third current is greater than the first current. The third current only partially discharges a capacitance coupled to the energy transfer element and the current controller. A control circuit is to be coupled to the current controller to selectively enable the first, second or third current in the current controller. A first feedback circuit is coupled to generate a first feedback signal while the first current is enabled by the current controller after a full discharge pulse. A second feedback circuit is coupled to generate a second feedback signal while the first current is enabled in the controller after a partial discharge pulse. | 2013-05-23 |
20130128626 | Transformer Drive For Low Conduction Loss Rectifier In Flyback Converter - A flyback converter involves a bipolar transistor (BJT) and a parallel-connected diode as the rectifying element in the secondary side of the converter. The transformer of the converter has a primary winding, a first secondary winding, and a second secondary winding. A first end of the first secondary winding is coupled to the BJT base. A first end of the second secondary winding is coupled to the BJT collector and to the anode of the diode. The first and second secondary windings are wound such that when primary winding current stops, pulses of current flow out of the first ends of the first and second secondary windings. These currents are such that the BJT is maintained in saturation throughout at least most of the time current flows through the rectifying element, thereby achieving a low forward voltage across the rectifying element, reducing conduction loss, and increasing converter efficiency. | 2013-05-23 |
20130128627 | SWITCH CONTROL METHOD, SWITCH CONTROLLER, AND CONVERTER COMPRISING THE SWITCH CONTROLLER - The present invention relates to a converter, a switch controller controlling switching operation of a power switch in the converter, and a switch control method. An exemplary embodiment of the present invention generates a reference current corresponding to an output current of the converter and generates a control voltage that depends on the reference current. The exemplary embodiment controls an increase or a decrease of the control voltage and determines a switching frequency of the power switch according to the control voltage. The exemplary embodiment controls on-time of the power switch using a reference voltage determined according to a control current that depends on the reference current. | 2013-05-23 |
20130128628 | POWER SYSTEM CONTROLLING AND MONITORING POWER SEMICONDUCTOR DEVICES EMPLOYING TWO SERIAL SIGNALS - A power system includes a power semiconductor devices; a control circuit outputting first firing signals each being for a corresponding power semiconductor device, and outputting first activation response signals each being associated with a corresponding power semiconductor device. A first interface circuit cooperates with the control circuit to input a first serial signal and output the first firing signals, and to input the first activation response signals and output a second serial signal. A second interface circuit cooperates with a controller to input the second serial signal, to output to the controller second activation response signals corresponding to the first activation response signals, to input from the controller second firing signals corresponding to the first firing signals, and to output the first serial signal. The controller controls the power semiconductor devices with the second firing signals, and monitors the power semiconductor devices with the second activation response signals. | 2013-05-23 |
20130128629 | HYBRID 2-LEVEL AND MULTILEVEL HVDC CONVERTER - A voltage source converter is used in high voltage direct current power transmission and reactive power compensation. The voltage source converter comprises first and second DC terminals for connection in use to a DC network, three phase elements and at least one auxiliary converter connected between the first and second DC terminals, each phase element including a plurality of primary switching elements and at least one AC terminal for connection in use to a respective phase of a multi-phase AC network, the plurality of primary switching elements being controllable in use to facilitate power conversion between the AC and DC networks, the or each auxiliary converter being operable in use to act as a waveform synthesizer to modify a first DC voltage presented to the DC network so as to minimise ripple in the DC voltage. | 2013-05-23 |
20130128630 | METHOD OF CONTROLLING THE POWER INPUT TO A HVDC TRANSMISSION LINK - Disclosed is a method of controlling the power input to a HVDC transmission link, which HVDC transmission link is connected to an AC power plant via a first voltage source converter and to AC grid via a second voltage source converter, which method includes using the second voltage source converter to perform voltage control of the HVDC transmission link during a no-fault mode of operation of the grid; monitoring a HVDC transmission link parameter to detect an unbalanced fault; and using the first voltage source converter to regulate the output of the AC power plant on the basis of the monitored HVDC transmission link parameter in the event of an unbalanced fault. Also described are a control module for controlling the power input to a HVDC transmission link; a voltage source converter for a power plant; and a power generation and transmission arrangement. | 2013-05-23 |
20130128631 | NEUTRAL POINT CLAMPED CONVERTER CONTROL SYSTEMS AND METHODS - A control system includes first and second fundamental control units for generating first and second fundamental commands, and a compensation control unit. The compensation control unit includes first and second calculation elements and a comparator for comparing first and second modulation indexes. When the first modulation index is less than the second modulation index, the first calculation element generates a first source-side compensation command. When the first source-side compensation command is not sufficient to balance the neutral point voltage, the first calculation element further generates a first line-side compensating command. When the first modulation index is greater than the second modulation index, the second calculation element generates a second line-side compensation command. When the second line-side compensation command is not sufficient to balance the neutral point voltage, the second calculation element further generates a second source-side compensating command. | 2013-05-23 |
20130128632 | NEUTRAL POINT CLAMPED CONVERTER CONTROL SYSTEM AND CONTROL METHOD AND COMPENSATION UNIT - A control system includes a fundamental control unit, first and second compensation control units, a switch control unit, and a switch implementation unit. The fundamental control unit generates fundamental commands to implement fundamental power conversion operation for a converter. The first compensation control unit generates a first compensation signal for injection into the fundamental command to balance neutral point voltage when the converter is in operation in a first state. The second compensation control unit generates a second compensation signal for injection into the fundamental command to balance neutral point voltage when the converter is in operation in a second state. The switch control unit detects first and second states of the converter and provides first and second switch signals respectively. The switch implementation unit switches the fundamental control unit to communicate with the first and second compensation control units according to the first and second switch signals respectively. | 2013-05-23 |
20130128633 | CHOPPER APPARATUS - Positive-side DC terminals P | 2013-05-23 |
20130128634 | COMPOSITE AC TO DC CONVERTER WITH BOOSTING CAPABILITIES - A composite-like AC-to-DC converter has boosting capabilities. The term “composite AC-to-DC converter” has been coined to distinguish a converter using two or more conversion methods in parallel. All the autotransformer designs for the boost topology composite-like system begin with vector diagrams constructed using the tips of the line-to-line voltage vectors. A constructor arc is swung between these tips equal to the length of the line-to-line voltage vector span. The number of autotransformer three-phase outputs is then determined by the number of equally spaced rays drawn from the opposite vector tip to the arc. The intersection of points of these rays with the arc are used to design the composite-like autotransformer's winding's voltage ratios and interconnections. | 2013-05-23 |
20130128635 | METHOD FOR OPERATING A CONVERTER AND A SWITCHING CELL AND A CONVERTER - Exemplary embodiments are directed to a method for operating a converter, wherein the converter includes a plurality of bridge branches having one or more switching cells connected in series. Each bridge branch connects one of a plurality of inputs to one of a plurality of outputs of the converter. The method includes monitoring each of the switching cells in order to determine a fault. If a fault is identified in one of the switching cells, triggering one of the triggering elements for short-circuiting switching cell connections if the fault identified in the switching cell is not followed by identification of a fault in a further one of the switching cells within a predetermined period of time. | 2013-05-23 |
20130128636 | HVDC Converter Comprising Fullbridge Cells For Handling A DC Side Short Circuit - A power electronic converter for use in high voltage direct current power transmission and reactive power compensation comprises three converter limbs, each converter limb including first and second DC terminals for connection in use to a DC network and an AC terminal for connection in use to a respective phase of a three-phase AC network, each converter limb defining first and second limb portions being connected in series between the respective AC terminal and a respective one of the first and second DC terminals, each limb portion including at least one switching element being controllable in use to facilitate power conversion between the AC and DC networks, the power electronic converter further including a plurality of auxiliary units, each auxiliary unit being operably associated with the respective phase of the AC network, each auxiliary unit including at least one module including a voltage source, the limb portions being controllable in use to define at least one three-phase static synchronous compensator including at least one of the plurality of auxiliary units in each branch of a star configuration, each of the first and/or second DC terminals defining the neutral point of the respective star configuration. | 2013-05-23 |
20130128637 | POWER RAIL REGULATOR SYSTEM - A power regulators system and method is disclosed. In one embodiment, a power regulator system ( | 2013-05-23 |
20130128638 | SYSTEMS, METHODS, AND APPARATUS FOR A HIGH POWER FACTOR SINGLE PHASE RECTIFIER - Systems, methods and apparatus are disclosed for broadband AC to DC conversion. In one aspect, a power conversion apparatus for providing direct current (DC) based at least in part on an alternating current is provided. The power conversion apparatus includes a first rectifier circuit configured to rectify the alternating current to a first direct current. The power conversion apparatus further includes an averaging circuit configured to average the first direct current received from the first rectifier circuit and to provide a second direct current. The power conversion apparatus further includes a second rectifier circuit configured to rectify the alternating current to a third direct current. The direct current is derived from the second direct current and the third direct current. | 2013-05-23 |
20130128639 | POWER SUPPLY SYSTEM WITH REDUCED POWER LOSSES, AN ELECTRONIC DEVICE AND A CONTROLLER - A power supply system ( | 2013-05-23 |
20130128640 | SWITCH CONTROLLER, SWITCH CONTROL METHOD, AND POWER SUPPLY DEVICE COMPRISING THE SWITCH CONTROLLER - The present invention relates to a switch controller, a switch control method, and a power supply including the switch controller. An exemplary embodiment of the present invention detects an on-time of a power switch of the power supply and decreases a frequency of a clock signal according to a period during which the detected on-time is shorter than or equal to the minimum on-time. According to the exemplary embodiment, switching of the power switch is controlled according to a clock signal, and the minimum on-time is an on period of the power switch that cannot be shortened. | 2013-05-23 |
20130128641 | LOAD CONTROL DEVICE - A two-wire load control device prevents load malfunctioning, such as erroneous emission of an LED, due to a leak current, even when loads not taking countermeasures against noise are connected. The load control device is connected in series between a commercial power source and a load and an off power supply for ensuring an inner power supply at the time of turning off the load is provided with capacitors, which are switched to be connected in series or parallel, based on an input voltage. The control device makes the capacitors repeat charging and discharging, and a power discharged from the capacitors is used as the inner power supply, thereby reducing standby power requirement of the load control device at the time of turning off the load. | 2013-05-23 |
20130128642 | Signal Level Detector and Method Thereof - A signal level detector and detecting method are provided. In one implementation a method includes receiving a differential input signal; incorporating two configurable rectifiers of the same circuit topology; configuring a first one of the two configurable rectifiers as a inverting rectifier to generate an inverting end of an output signal in response to an absolute value of the differential input signal; and configuring a second one of the two configurable rectifiers as a non-inverting rectifier to generate a non-inverting end of the output signal. | 2013-05-23 |
20130128643 | Power Converter Device - A power converter device includes first through third semiconductor modules provided for phases of a three-phase inverter circuit, and incorporating upper and lower arms series circuit, and a flow path forming cabinet in a rectangular prism shape having an electric equipment containing space and a coolant flow path formed to surround the electric equipment containing space, the coolant flow path includes a first flow path provided along a first side face of the flow path forming cabinet, a second flow path provided along a second side face contiguous to one side of the first side face and connected to one end of the first flow path, and a third flow path provided along a third side face contiguous to other side of the first side face and connected to other end of the first flow path. | 2013-05-23 |
20130128644 | DUAL BRIDGE INVERTER USABLE WITH REACTIVE POWER - The invention relates to inverters employing a first and a second bridge circuit for converting DC input current into an AC output current. In particular, the invention proposes an inverter including two DC input terminals with a first and a second bridge circuit connected in parallel therebetween, the first bridge circuit for providing a first half-wave of a first polarity to a pair of AC output terminals and the second bridge circuit for providing a second half-wave of an opposite polarity to the pair of AC output terminals. The first half-wave is supplied from the first bridge circuit via a first and a second inductive element to the pair of AC output terminals, and the second half-wave is supplied from the second bridge circuit via a third and a fourth inductive element to the pair of AC output terminals. | 2013-05-23 |
20130128645 | Power Conversion Apparatus and Electric Vehicle - The metallic case of a power conversion apparatus includes a casing having a side wall, as well as an upper case and a lower case, a first area being formed between a cooling jacket provided at the inner periphery of the side wall and the lower case, the metal base plate dividing the first area between the cooling jacket and the upper case into a lower side second area and an upper side third area, first and second power modules being fastened to a top surface and a capacitor module being provided in the first area, driving circuits that drive inverter circuits of the power modules respectively being provided in the second area, and a control circuit that controls the driver circuits being provided in the third area. | 2013-05-23 |
20130128646 | Power Conversion Device - A power conversion device includes: a cooling base | 2013-05-23 |
20130128647 | DATA PROCESSING DEVICE - A microcomputer provided on a rectangular semiconductor board has memory interface circuits. The memory interface circuits are separately disposed in such positions as to extend along the peripheries of the semiconductor board on both sides from one corner as a reference position. In this case, limitations to size reduction imposed on the semiconductor board can be reduced compared with a semiconductor board having memory interface circuits only on one side. Respective partial circuits on each of the separated memory interface circuits have equal data units associated with data and data strobe signals. Thus, the microcomputer has simplified line design on a mother board and on a module board. | 2013-05-23 |
20130128648 | LAYOUTS FOR MEMORY AND LOGIC CIRCUITS IN A SYSTEM-ON-CHIP - An integrated circuit including a plurality of memory circuits and a plurality of logic circuits. The plurality of memory circuits is arranged on a die along a plurality of rows and a plurality of columns. Each memory circuit includes a plurality of memory cells. The plurality of logic circuits is arranged on the die between the plurality of memory circuits along the plurality of rows and the plurality of columns. The plurality of logic circuits is configured to communicate with one or more of the memory circuits. | 2013-05-23 |
20130128649 | MEMORY CELLS, SEMICONDUCTOR DEVICES INCLUDING SUCH CELLS, AND METHODS OF FABRICATION - Memory cells are disclosed, which cells include a cell material and an ion-source material over the cell material. A discontinuous interfacial material is included between the cell material and the ion-source material. Also disclosed are fabrication methods and semiconductor devices including the disclosed memory cells. | 2013-05-23 |
20130128650 | DATA-MASKED ANALOG AND DIGITAL READ FOR RESISTIVE MEMORIES - An analog read circuit measures the resistance of each of a plurality of bits in an array of resistive memory elements. Data stored within a latch determines whether to selectively enable the analog read circuit. In an alternate embodiment, a sense amplifier is coupled to the latch and the array, and the data stored in the latch determines whether to selectively enable the sense amplifier. | 2013-05-23 |
20130128651 | NONVOLATILE MEMORY DEVICE - According to one embodiment, a nonvolatile memory device includes a first conductive unit, a second conductive unit, and a memory layer. The memory layer is provided between the first conductive unit and the second conductive unit. The memory layer is capable of reversibly transitioning between a first state with a low resistance and a second state with a higher resistance than the first state due to a current supplied via the first conductive unit and the second conductive unit. The memory layer has a chalcopyrite structure. | 2013-05-23 |
20130128652 | Device for Storing a Frequency and Method for Storing and Reading Out a Frequency - The disclosure relates to a device for storing a frequency, wherein the device comprises (i) a comparator having an input, an output, a supply voltage input, and a supply voltage output, and (ii) a memristor connected between the input and the comparator and the output of the comparator. | 2013-05-23 |
20130128653 | RESISTIVE RADOM ACCESS MEMORY DEVICE, METHOD FOR MANUFACTURING THE SAME, AND METHOD FOR OPERATING THE SAME - A resistive random access memory device, a method for manufacturing the resistive random access memory device, and a method for operating the resistive random access memory device are disclosed. The resistive random access memory device includes a resistive switching memory element including two electrodes and a layer of variable-resistance material between the two electrodes, wherein the layer of variable-resistance material exhibits bipolar resistive switching behavior; and a Schottky diode including a metal layer and a p-doped semiconductor layer which contact each other, wherein the metal layer of the Schottky diode is coupled to one of the two electrodes of the resistive switching memory element. The present disclosure provides the resistive random access memory device operating in bipolar resistive switching scheme. | 2013-05-23 |
20130128654 | NONVOLATILE MEMORY ELEMENT, METHOD OF MANUFACTURING NONVOLATILE MEMORY ELEMENT, METHOD OF INITIAL BREAKDOWN OF NONVOLATILE MEMORY ELEMENT, AND NONVOLATILE MEMORY DEVICE - A nonvolatile memory element includes a current steering element which bidirectionally rectifies current in response to applied voltage and a variable resistance element connected in series with the current steering element. The current steering element includes an MSM diode and an MSM diode which are connected in series and each of which bidirectionally rectifies current in response to applied voltage. The MSM diode and the MSM diode include a lower electrode, a first current steering layer, a first metal layer, a second current steering layer, and an upper electrode which are stacked in this order. The current steering element has a breakdown current which is larger than an initial breakdown current which flows in the variable resistance element at the time of initial breakdown. | 2013-05-23 |
20130128655 | METHOD AND APPARATUS FOR DUAL RAIL SRAM LEVEL SHIFTER WITH LATCHING - An apparatus includes a level shifter and a switching circuit. The level shifter includes an input, a first output, and second output having a logic value complementary to a logic value of the first output. The switching circuit includes a data input, a feedback input coupled to the second output of the level shifter, and an output coupled to the input of the level shifter. The switching circuit is configured to selectively latch, based on a select signal, a logic state of the level shifter at the second output. | 2013-05-23 |
20130128656 | SRAM MEMORY DEVICE AND TESTING METHOD THEREOF - A static random access memory (SRAM) device includes a memory array of a plurality of memory cells, a controller that receives an external clock signal formed by a succession of external pulses and generates an internal clock signal formed by a succession of internal pulses, and a driving circuit that receives the internal clock signal. The controller is operable in a first mode, wherein the controller generates, for each external pulse, a corresponding internal pulse and the controller controls the driving circuit so that the driving circuitry carries out one access to the memory array for each internal pulse. The controller is further operable in a second mode, wherein the controller generates, for each external pulse, a pair of internal pulses, and the controller controls the driving circuitry so that, for each pair of internal pulses, the driving circuitry writes a first data item in a set of memory cells, and then reads the set of memory cells, so as to acquire a second data item. | 2013-05-23 |
20130128657 | HYBRID READ SCHEME FOR SPIN TORQUE MRAM - A method of reading data from a plurality of bits in a spin-torque magnetoresistive memory array includes performing one or more referenced read operations of the bits, and performing a self-referenced read operation, for example, a destructive self-referenced read operation, of any of the bits not successfully read by the referenced read operation. The referenced read operations can be initiated at the same time or prior to that of the destructive self-referenced read operation. | 2013-05-23 |
20130128658 | WRITE DRIVER CIRCUIT AND METHOD FOR WRITING TO A SPIN-TORQUE MRAM - A write driver for writing to a spin-torque magnetoresistive random access memory (ST-MRAM) minimizes sub-threshold leakage of the unselected (off) word line select transistors in the selected column. An effective metal resistance in the bit line and/or source line is reduced and power supply noise immunity is increased. Write driver bias signals are isolated from global bias signals, and a first voltage is applied at one end of a bit line using one of a first NMOS-follower circuit or a first PMOS-follower circuit. A second voltage is applied at opposite ends of a source line using, respectively, second and third PMOS-follower circuits, or second and third NMOS-follower circuits. | 2013-05-23 |
20130128659 | SELF-REFERENCED MRAM CELL WITH OPTIMIZED RELIABILITY - Magnetic random access memory (MRAM) element suitable for a thermally-assisted write operation and for a self-referenced read operation, comprising a magnetic tunnel junction portion having a first portion and a second portion, each portion comprising a storage layer, a sense layer, and a tunnel barrier layer; the magnetic tunnel junction further comprising an antiferromagnetic layer between the two storage layers and pinning a storage magnetization of each of the storage layers below a critical temperature, and freeing them at and above the critical temperature; such that, during a write operation, a free magnetization of each of the sense layer is magnetically saturable according to a direction of a write magnetic field when applied; and the storage magnetizations are switchable in a direction substantially parallel and corresponding to the direction of the saturated free magnetizations. | 2013-05-23 |
20130128660 | READING METHOD OF NON-VOLATILE MEMORY DEVICE - A reading method of a non-volatile memory device that includes a plurality memory cells that each include one floating gate and two control gates disposed adjacent to the floating gate on two alternate sides of the floating gate, respectively, and two adjacent memory cells share one control gate, the reading method comprising applying a read voltage to control gates of a selected memory cell, applying a second pass voltage to alternate control gates of the memory cells different from the control gates of the selected memory cells starting from the control gates next to the selected memory cell, and applying a first pass voltage that is lower than the second pass voltage to alternate the control gates of the memory cells different from the control gates of the selected memory cells starting from the control gates secondly next to the selected memory cell. | 2013-05-23 |
20130128661 | MEMORY AND METHOD FOR OPERATING THE SAME - A memory includes a first memory cell, a bit line corresponding to the first memory cell, at least one second memory cell adjacent to the first memory cell, and a page buffer configured to read data of the first memory cell by precharging the bit line to a voltage level which is decided in response to data of the at least one second memory cell. | 2013-05-23 |
20130128662 | NONVOLATILE MEMORY DEVICE AND METHOD OF READING DATA IN NONVOLATILE MEMORY DEVICE - A method is provided for reading data in a nonvolatile memory device. The method includes performing a first read operation on multiple multi-level memory cells (MLCs), performing a first sensing operation on at least one flag cell corresponding to the MLCs, selectively performing a second read operation on the MLCs based on a result of the first sensing operation, and performing a second sensing operation on the at least one flag cell when the second read operation is performed. Read data is output based on results of the first read operation and the first sensing operation when the second read operation is not performed, and the read data is output based on result of the first read operation, the first sensing operation, the second read operation and the second sensing operation when the second read operation is performed. The read data corresponds to programmed data in the MLCs. | 2013-05-23 |
20130128663 | NON-VOLATILE MEMORY DEVICE AND METHOD FOR PROGRAMMING NON-VOLATILE MEMORY DEVICE - A method for programming a non-volatile memory device includes: providing a non-volatile memory device including data cells capable of storing N-bit data (N is a natural number) and a monitoring cell capable of monitoring whether the N-bit data has been programmed into the data cells; performing a first programming operation for the data cells while inhibiting programming of the monitoring cell; and performing a second programming operation for the monitoring cell while inhibiting programming of the data cells, wherein the second programming operation is performed differently from the first programming. | 2013-05-23 |
20130128664 | MEMORY MODULE FOR SIMULTANEOUSLY PROVIDING AT LEAST ONE SECURE AND AT LEAST ONE INSECURE MEMORY AREA - A memory module has at least one secure and at least one insecure memory area, separate write/read electronic units for each of the memory areas and at least one shared analog circuit part such as a voltage supply circuit for supplying the write/read electronic units and/or the memory areas. | 2013-05-23 |
20130128665 | NON-VOLATILE STORAGE WITH BROKEN WORD LINE SCREEN AND DATA RECOVERY - Data, normally read using a page-by page read process, can be recovered from memory cells connected to a broken word line by performing a sequential read process. To determine whether a word line is broken, both a page-by page read process and a sequential read process are performed. The results of both read processes are compared. If the number of mismatches between the two read processes is greater than a threshold, it is concluded that there is a broken word line. | 2013-05-23 |
20130128666 | Scrub Techniques for Use with Dynamic Read - The decision on whether to refresh or retire a memory block is based on the set of dynamic read values being used. In a memory system using a table of dynamic read values, the table is configured to include how to handle read error (retire, refresh) in addition to the read parameters for the different dynamic read cases. In a refinement, the read case number can used to prioritize blocks selected for refresh or retire. In cases where the read scrub is to be made more precise, multiple dynamic read cases can be applied. Further, which cases are applied can be intelligently selected. | 2013-05-23 |
20130128667 | Low-Voltage Page Buffer to be Used in NVM Design - A low-current FN channel for Erase, Program, Program-Inhibit and Read operations is disclosed for any non-volatile memory using FN-tunneling scheme for program and erase operation, regardless NAND, NOR, and EEPROM and regardless PMOS or NMOS non-volatile cell type. As a result, all above NMV memories can use the disclosed LV, compact PGM buffer to replace the traditional HV PGM buffer for saving in the silicon area and power consumption. The page buffer is used to store new loaded data for new writing and to convert the stored data into the required BL HV voltage for either Erase or Program operations according to the stored data. In addition, the simpler on-chip State-machine design can be achieved with the superior quality of NVMs of this disclosure. | 2013-05-23 |
20130128668 | NON-VOLATILE MEMORY DEVICE HAVING CONFIGURABLE PAGE SIZE - A flash memory device having at least one bank, where the each bank has an independently configurable page size. Each bank includes at least two memory planes having corresponding page buffers, where any number and combination of the memory planes are selectively accessed at the same time in response to configuration data and address data. The configuration data can be loaded into the memory device upon power up for a static page configuration of the bank, or the configuration data can be received with each command to allow for dynamic page configuration of the bank. By selectively adjusting a page size the memory bank, the block size is correspondingly adjusted. | 2013-05-23 |
20130128669 | OPERATION FOR NON-VOLATILE STORAGE SYSTEM WITH SHARED BIT LINES - A non-volatile storage system is disclosed that includes pairs of NAND strings (or other groupings of memory cells) in the same block being connected to and sharing a common bit line. To operate the system, two selection lines are used so that the NAND strings (or other groupings of memory cells) sharing a bit line can be selected at the block level. Both selection lines are connected to a selection gate for each of the NAND strings (or other groupings of memory cells) sharing the bit line. One set of embodiments avoid unwanted boosting during read operations by keeping the channels of the memory cells connected to word lines on the drain side of the selected word line biased at a fixed potential. | 2013-05-23 |
20130128670 | MEMORY ACCESS METHOD AND FLASH MEMORY USING THE SAME - A memory access method is applied in a memory controller for accessing an NAND memory array, including a number of respective select switches globally controlled with a string select signal. The memory access method includes the following steps. A stream bias signal and a selected word line signal are respectively provided on a selected stream and on a selected cell of the selected stream, and the rest of memory cells are turned on as pass transistors, in the setup phase. A discharge path is provided to eliminate coupling charge presented on unselected streams, in the setup phase. Then, the string select signal is enabled to have the selected stream connected to a sense unit via a metal bit line and according read the selected cell in a voltage sensing scheme, in a read phase, which does not overlap with the setup phase. | 2013-05-23 |
20130128671 | FLASH MEMORY DEVICE AND PROGRAM METHOD - Disclosed is a flash memory device and programming method that includes; receiving buffer data and determining between a high-speed mode and a reliability mode for buffer data, and upon determining the reliability mode storing the buffer data in a first buffer region, and upon determining the high-speed mode storing the buffer data in a second buffer region. The memory cell array of the flash memory including a main region and a separately designated buffer region divided into the first buffer region and second buffer region. | 2013-05-23 |
20130128672 | PROGRAM METHOD AND FLASH MEMORY USING THE SAME - A program method, applied in a flash memory, includes the following steps. Firstly, a first memory sector and a second memory sector are selected, wherein the first and the second memory sectors respectively correspond to a first word line and a second word line. Next, a first operation phase and a second operation phase are determined. Then, the first word line is biased with a first setup voltage, and the second word line is driven in one of a program operation and a program-verification operation, in the first operation phase. After that, the second word line is biased with a second setup voltage, and the first word line is driven in the other one of the program operation and the program-verification operation in the second operation phase. | 2013-05-23 |
20130128673 | SEMICONDUCTOR MEMORY DEVICE - According to one embodiment, a semiconductor memory device includes memory cells storing data based on respective threshold voltages, having a positive threshold voltage in a data erased state, and includes respective control electrodes. Word lines are selectively electrically connected to the control electrodes of the memory cells, and charged to a potential before writing data to the memory cells. A voltage generator outputs a voltage at an output and includes a first path which discharges the output. A connection circuit is selectively electrically connected to the output of the voltage generator and a first word line, and selectively electrically connects the first word line to a first node which supplies a potential. | 2013-05-23 |
20130128674 | METHOD OF OPERATING INTEGRATED CIRCUIT EMBEDDED WITH NON-VOLATILE PROGRAMMABLE MEMORY HAVING VARIABLE COUPLING RELATED APPLICATION DATA - A programmable non-volatile device is operated with a floating gate that functions as a FET gate that overlaps a portion of a source/drain region and allows for variable coupling through geometry and/or biasing conditions. This allows a programming voltage for the device to be imparted to the floating gate through variable capacitive coupling, thus changing the state of the device. Multi-state embodiments are also possible. The invention can be used in environments such as data encryption, reference trimming, manufacturing ID, security ID, and many other applications. | 2013-05-23 |
20130128675 | NONVOLATILE MEMORY DEVICE, MEMORY SYSTEM AND CONTROLLER OPERATING METHOD - An operating method for a memory system provides a ready/busy signal from a nonvolatile memory device indicating an idle state or a busy state to a controller. The controller generates a next command but transfers the next command to the nonvolatile memory device in response to the ready/busy signal and the idle verse busy state of a target plane among multiple planes of the nonvolatile memory device. | 2013-05-23 |
20130128676 | MEMORY DEVICE WITH AREA EFFICIENT POWER GATING CIRCUITRY - A memory device comprises a memory block, a power gating transistor, and control circuitry. The memory block includes at least one memory cell comprising a storage element electrically connected to a source potential line, a drive strength of the storage element being a function of a voltage level on the source potential line. The power gating transistor, in turn, is connected between the source potential line and a voltage source. The control circuitry is operative to configure the power gating transistor to electrically connect the source potential line to the voltage source while the memory block is in a first mode, and to clamp the source potential line at a voltage different from that of the voltage source when the memory block is in a second mode. | 2013-05-23 |
20130128677 | DYNAMIC RANDOM ACCESS MEMORY DEVICE WITH IMPROVED CONTROL CIRCUITRY FOR THE WORD LINES - A dynamic random access memory device may include DRAM memory cells including several lines of memory cells, and line selection circuitry associated with each line. The line selection circuitry may include a first voltage-elevator stage configured to receive two initial control logic signals each having an initial voltage level corresponding to a first logic state, and to deliver two intermediate control logic signals each having an intermediate voltage level above the initial level and corresponding to the first logic state. The line selection circuitry may also include a control circuit to be supplied by PMOS transistors with a supply voltage having a second voltage level greater than the intermediate voltage level, and configured to, in the presence of the two intermediate control logic signals have their first logic state deliver to the gates of the memory cell transistors, a selection logic signal having the second voltage level. | 2013-05-23 |
20130128678 | POWER SAVING METHODS FOR USE IN A SYSTEM OF SERIALLY CONNECTED SEMICONDUCTOR DEVICES - A semiconductor device comprising (i) internal circuitry for outputting at least one internal clock signal and at least one internal data/control signal for transmission to a next device in a chain of semiconductor devices; (ii) data/control output circuitry for outputting at least one output data/control signal from the at least one internal data/control signal and for releasing the at least one output data/control signal towards the next device via at least one output data/control signal line, the at least one output data/control signal having a first dynamic range; and (iii) clock output circuitry for generating at least one output clock signal from the at least one internal clock signal and for releasing the at least one output clock signal towards the next device via at least one output clock signal line, the at least one output clock signal having a dynamic range different than the first dynamic range. | 2013-05-23 |
20130128679 | REDUNDANCY SYSTEM FOR NON-VOLATILE MEMORY - A redundancy scheme for Non-Volatile Memories (NVM) is described. This redundancy scheme provides means for using defective cells in non-volatile memories to increase yield. The algorithm is based on inverting the program data for data being programmed to a cell grouping when a defective cell is detected in the cell grouping. Defective cells are biased to either “1” or “0” logic states, which are effectively preset to store its biased logic state. A data bit to be stored in a defective cell having a logic state that is complementary to the biased logic state of the cell results in the program data being inverted and programmed. An inversion status bit is programmed to indicate the inverted status of the programmed data. During read out, the inversion status bit causes the stored data to be re-inverted into its original program data states. | 2013-05-23 |
20130128680 | READ ASSIST CIRCUIT FOR AN SRAM - A memory circuit includes a bit cell that receives a word line, complementary bit lines and an array supply voltage; a word line driver coupled to the word line, the word line driver receiving one of the array supply voltage and a periphery supply voltage; and a word line suppression circuit coupled to the word line. The word line suppression circuit includes a diode and a switch coupled in series. The switch is responsive to the array supply voltage. The word line suppression circuit limits a word line voltage to a value lower than the array supply voltage such that the static noise margin (SNM) of the bit cell is increased. | 2013-05-23 |
20130128681 | SEMICONDUCTOR MEMORY APPARATUS - A semiconductor memory apparatus includes a first switch, a second switch and a control unit. The first switch couples/separates a first bit line and a sense amplifier to/from each other in response to a first bit line separation signal. The second switch couples a second bit line and the sense amplifier to each other in response to a second bit line separation signal. The control unit generates a bit line separation signal for a refresh operation, of which enable period is shorter than that of the second bit line separation signal, and provides the generated bit line separation signal for the refresh operation to the second switch in the refresh operation. | 2013-05-23 |
20130128682 | MEMORY SYSTEM WITH DYNAMIC REFRESHING - An embodiment provided is a memory system with dynamic refreshing that includes a memory device with memory cells. The system also includes a refresh module in communication with the memory device and with a memory controller, the refresh module configured for receiving a refresh command from the memory controller and for refreshing a number of the memory cells in the memory device in response to receiving the refresh command. The number of memory cells refreshed in response to receiving the refresh command is responsive to at least one of a desired bandwidth characteristic and a desired latency characteristic. | 2013-05-23 |
20130128683 | Semiconductor Devices and Methods for Changing Operating Characteristics and Semiconductor Systems Including the Same - A method of changing a parameter in a semiconductor device is provided. The method includes receiving and storing data in a storage region; and changing at least one between a DC characteristic and an AC timing characteristic of a parameter, used to access a non-volatile memory cell included in a memory core of the semiconductor device, according to the data stored in the storage. | 2013-05-23 |