15th week of 2012 patent applcation highlights part 23 |
Patent application number | Title | Published |
20120087099 | Printed Circuit Board For Board-On-Chip Package, Board-On-Chip Package Including The Same, And Method Of Fabricating The Board-On-Chip Package - Provided is a printed circuit board for a board-on-chip package prepared with a strip level of a plurality of unit substrates and including a reject marking portion for determining whether there is a defective unit substrate, wherein the reject marking portion is in each unit substrate. | 2012-04-12 |
20120087100 | PORTABLE KEYBOARD AND ELECTRONIC DEVICE CARRYING CASE - A protective carrying apparatus for a portable keyboard unit and a portable electronic device includes a case unit and a portable keyboard unit accommodated therein. The case unit has a first accommodating portion for accommodating the portable electronic device and a second accommodating portion having at least a magnetic coupler. The portable keyboard unit includes a magnetic member that can be selectively coupled to the magnetic coupler of the second accommodating portion of the case unit. | 2012-04-12 |
20120087101 | Device with optimized placement of connectors - The present invention relates to a device including a hollow frame forming an enclosure, at least two electronic circuits placed inside the enclosure, at least first and second connectors to connect each an external cable to each of the electronic circuits, each of the first and second connectors comprising a base intended to be mounted on the frame and a plug capable of being inserted into the base, the plug being connected to the cable and the base being connected to the electronic circuit, the base of the first connector being placed in a first aperture made in an end wall of the frame. The second connector is placed behind the base of the first connector inside the enclosure, the cable connected to the plug of the second connector penetrating inside the enclosure through a second aperture made in the end wall of the frame. | 2012-04-12 |
20120087102 | ON-CAMERA LED FRESNEL LIGHTING SYSTEM INCLUDING ACTIVE COOLING - A lighting apparatus for film, television, video capture, motion picture and photography which includes a Fresnel lens fixed in a housing which contains a tight array of high power LEDs. The LED panel or board is mated to a heat dissipating apparatus to provide active cooling and together forming an LED engine. The LED engine is mounted to a slider allowing the LED engine to be adjusted within the housing with respect to the lens. Light shaping diffusion may be included on the housing. A power supply unit may also be included in the housing. When in electrical communication, the LED engine and power supply unit function as an integrated self-contained lighting apparatus. Optionally, the power supply may have an integrated dimmer switch, and may be capable of receiving PFC power or have an integrated battery unit. | 2012-04-12 |
20120087103 | WAVELENGTH CONVERSION COMPONENT WITH A DIFFUSING LAYER - A light emitting device comprises at least one solid-state light source (LED) operable to generate excitation light and a wavelength conversion component located remotely to the at least one source and operable to convert at least a portion of the excitation light to light of a different wavelength. The wavelength conversion component includes a light transmissive substrate having a wavelength conversion layer comprising particles of at least one photoluminescence material and a light diffusing layer comprising particles of a light diffractive material. This approach of using the light diffusing layer in combination with the wavelength conversion layer solves the problem of variations or non-uniformities in the color of emitted light with emission angle. | 2012-04-12 |
20120087104 | WAVELENGTH CONVERSION COMPONENT WITH SCATTERING PARTICLES - A light emitting device comprises at least one solid-state light source (LED) operable to generate excitation light and a wavelength conversion component located remotely to the at least one source and operable to convert at least a portion of the excitation light to light of a different wavelength. The wavelength conversion component comprises a light transmissive substrate having a wavelength conversion layer comprising particles of at least one photoluminescence material and a light diffusing layer comprising particles of a light diffractive material. This approach of using the light diffusing layer in combination with the wavelength conversion layer solves the problem of variations or non-uniformities in the color of emitted light with emission angle. In addition, the color appearance of the lighting apparatus in its OFF state can be improved by implementing the light diffusing layer in combination with the wavelength conversion layer. Moreover, significant reductions can be achieved in the amount phosphor materials required to implement phosphor-based LED devices. | 2012-04-12 |
20120087105 | WAVELENGTH CONVERSION COMPONENT - A light emitting device comprises at least one solid-state light source (LED) operable to generate excitation light and a wavelength conversion component located remotely to the at least one source and operable to convert at least a portion of the excitation light to light of a different wavelength. The wavelength conversion component comprises a light transmissive substrate having a wavelength conversion layer comprising particles of at least one photoluminescence material and a light diffusing layer comprising particles of a light diffractive material. This approach of using the light diffusing layer in combination with the wavelength conversion layer solves the problem of variations or non-uniformities in the color of emitted light with emission angle. In addition, the color appearance of the lighting apparatus in its OFF state can be improved by implementing the light diffusing layer in combination with the wavelength conversion layer. Moreover, significant reductions can be achieved in the amount phosphor materials required to implement phosphor-based LED devices. | 2012-04-12 |
20120087106 | EFFICIENT LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING SUCH A DEVICE - The invention relates to a light emitting device ( | 2012-04-12 |
20120087107 | DISPLAY PANEL AND DISPLAY DEVICE - A red color filter ( | 2012-04-12 |
20120087108 | LED Apparatus - An LED apparatus is disclosed. The LED apparatus includes a substrate, a cup structure, and a dividing structure. The dividing structure divides a containing space formed by the cup structure into a first region and a second region. A first blue-light chip and a first package colloidal are disposed in the first region and a second blue-light chip and a second package colloidal are disposed in the second region. A green-light phosphor is mixed in the second package colloidal to completely convert a monochromatic emission spectrum of a second blue-light band of the second blue-light chip into a monochromatic emission spectrum of a green-light band. The green-light phosphor is selected from one of silicate, oxynitride, lutetium aluminum oxide, and calcium scandium oxide. | 2012-04-12 |
20120087109 | BACKLIGHT APPARATUS AND LIQUID CRYSTAL DISPLAY APPARATUS - A backlight apparatus is provided that enables a balance of brightness to be maintained over the entire area of a display screen and long life to be achieved. The surface of substrate | 2012-04-12 |
20120087110 | DEVICE FOR COUPLING MODULE CIRCUIT BOARD AND FRAME AND BACKLIGHT USING THE SAME - A device for coupling a module circuit board and a frame includes: a module circuit board on which light emitting diodes (LEDs) are installed to have a certain pattern; and a frame coupled with the module circuit board by a coupling unit, wherein the coupling unit includes coupling recesses formed on a rear surface of the module circuit board and coupling members formed on the frame and coupled with the coupling recesses. | 2012-04-12 |
20120087111 | SUBMERGED PLANAR ILLUMINATION DEVICE - A submerged planar illumination device for providing specified, substantially uniform distribution of light in liquid from one or few light sources such as LED. The device comprises a light guiding plate having an entrance edge to which the LEDs are fixed, a collimator for redirecting the light and forming substrate light which is coupled to a light guiding plate having at least one light extracting surface. Light extracting surface are optionally on both large surfaces of the light guiding plate. Each light extracting surface is covered with a pattern of light extracting and scattering elements capable of collecting, scattering and extracting light propagating in the light guiding plate into the liquid ambient medium in which the device is submerged. A cover, sealed to the entrance edge of the light guiding plate, protects the light emitting element from the liquid ambient medium. | 2012-04-12 |
20120087112 | WRITING INSTRUMENT PROVIDING ILLUMINATION - A writing instrument providing illumination includes a penholder, a pen core, a solid state lighting source module, and a rotating plate. The rotating plate connects to one end of the penholder. The solid state lighting source module is embedded in the rotating plate which can rotate to a specific angle. A battery providing electrical energy to the solid state lighting source module is arranged inside the penholder. When the rotating plate is turned to a position perpendicular to the penholder the solid state lighting source module is turned on and when the rotating plate is turned to a position adjacent to the penholder the solid state lighting source module is turned off. | 2012-04-12 |
20120087113 | HYBRID LIGHTING SYSTEM WITH LED ILLUMINATION SOURCES - A lighting system which includes an enclosure extending from the roof of a building to within the interior of a building. The enclosure has a top opening covered by a skylight, and a bottom opening covered by a panel within the building interior, and there is at least one LED heat-sink assembly positioned within the enclosure. | 2012-04-12 |
20120087114 | ILLUMINATION DEVICE USING SOLAR ENERGY - An illumination device includes a reflection disk, a positioning frame, a solar cell module, an illumination member and a driving device. The positioning frame is located at the focus of the curved reflection surface of the reflection disk. The solar cell module and the illumination member are respectively connected to the front and back of the positioning frame. The driving device is used to drive the positioning frame to rotate relative to the reflection disk. When the solar cell faces the curved reflection surface, the solar cell absorbs the reflected sun light to generate electric power. When the illumination member faces the curved reflection surface, light emitted from the illumination member is reflected by the curved reflection surface. | 2012-04-12 |
20120087115 | SUSTAINABLE OUTDOOR LIGHTING SYSTEM - A method of generating light involves energizing one or more first light emitting elements thereby generating primary illumination of a first wavelength range over a target area, and energizing one or more second light emitting elements thereby generating secondary illumination of a second wavelength range toward the target area during a critical period. Both the primary illumination and the secondary illumination are combined within at least a portion of the target area thereby enhancing at least one visual property within the at least a portion of the target area. | 2012-04-12 |
20120087116 | ILLUMINATION SYSTEM FOR SPOT ILLUMINA - An illumination system ( | 2012-04-12 |
20120087117 | ILLUMINATION SYSTEM FOR SPOT ILLUMINATION - An illumination system ( | 2012-04-12 |
20120087118 | LED LUMINAIRE HAVING LATERAL COOLING FINS AND ADAPTIVE LED ASSEMBLY - A luminaire including a housing made of thermally conductive material having a top, a bottom and two opposite sides connecting the top to the bottom, each side having plurality of external, vertically spaced, substantially parallel cooling fins that extend longitudinally and project laterally outwardly of the housing, preferably at a shallow downward and outward angle. The housing configuration provides a large surface area per unit of housing length to optimize heat dissipation. A configurable, cartridge-like LED bezel assembly—readily replaceable in the field—is supported on the bottom of the housing. A driver for the LED assembly—also readily replaceable in the field—is located within the housing. | 2012-04-12 |
20120087119 | LED LAMP - An LED lamp includes a base, a lampshade, a substrate and a light distribution board. A number of light emitting diodes are mounted on the substrate. The lampshade and the substrate are both fixed to the base. The light distribution board is positioned between the lampshade and the substrate. Opposite sides of the light distribution board respectively face the lampshade and the substrate. The light distribution board includes a number of protrusions. The base includes an oblique reflecting portion at opposite ends thereof. The reflecting portion is coated with a reflecting layer. The protrusions are configured for totally reflecting incident light with incident angle within a preset range from the light emitting diodes to the reflecting layer. The reflecting layer is configured for reflecting the reflected light to the lampshade. | 2012-04-12 |
20120087120 | GRILLE LIGHT FIXTURE AND HOUSING THEREOF - A grille light fixture and its housing are provided. The grille light fixture includes a housing, at least one light emitting device and an optical film. The housing has a base plate, a surrounding wall upwardly extending from the base plate and a plurality of supporting members disposed at the top of the surrounding wall, wherein the surrounding wall defines an opening. The light emitting device, an LED device for example, is disposed on the base plate. The optical film, a diffusion plate for example, is fixed on the supporting members and covers the opening. | 2012-04-12 |
20120087121 | LIGHT EMITTING DIODE LAMP - An LED lamp comprises a lamp body and a colorized, translucent envelope detachably connected to the lamp body. The lamp body includes an LED module and the envelope covers the LED module. A color of the envelope is different from that of the light emitted by the LED module. The envelope changes the color of the light of the LED module when the light passes through the envelope to the outside. | 2012-04-12 |
20120087122 | LIGHT SOURCE DEVICE AND DIPLAY DEVICE - There are provided a light source device and a display device which do not generate a wrinkle on an optical sheet even if the optical sheet is held on an LED substrate. A reflection sheet is disposed between each of head portions possessed by a rivet, a positioning rivet and a support rivet and one surface of an LED substrate where an LED is mounted, and a gap in a direction of a sheet thickness is provided between the head portion of each of the rivets and the reflection sheet. In the case in which a sudden thermal change is caused, therefore, the reflection sheet expands or contracts between the head portion of each of the rivets and the reflection sheet so that the wrinkle can be prevented from being generated over the reflection sheet. | 2012-04-12 |
20120087123 | LIGHT-EMITTING APPARATUS - The light-emitting apparatus ( | 2012-04-12 |
20120087124 | LED-BASED ILLUMINATION MODULES WITH THIN COLOR CONVERTING LAYERS - An illumination module includes a plurality of Light Emitting Diodes (LEDs). The illumination module may include a reflective color converting element with a PTFE layer and a color converting layer fixed to the PTFE layer. The color converting layer includes phosphor particles embedded in a polymer matrix and has a thickness that is less than five times an average diameter of the phosphor particles. The illumination module may include a transmissive color converting element. The color converting elements may be produced by mixing a polymer binder with a solvent and phosphor particles to form a homogeneous suspension of the phosphor particles. The homogeneous suspension is applied to a surface to form an uncured color converting layer, which is heated to vaporize the solvent. The cured color converting layer includes the phosphor particles suspended in the polymer binder | 2012-04-12 |
20120087125 | LED LAMP HAVING LIGHT EMITTING DIODES WITH REDUCED NUMBER OF LENSES COVERED THEREON - A light emitting diode (LED) lamp includes a light emitting module; a power module for driving the light emitting module; and a housing having an optical part for receiving the light emitting module, an electrical part for receiving the power module. The light emitting module includes a plurality of circuit boards sequentially arranged parallel to each other, a plurality of first LED chips which has lenses covered thereon being mounted on the circuit boards, and a plurality of second LED chips which has no lens covered thereon being mounted also on the circuit boards. The first and the second LED chips are arranged in columns and rows. The second LED chips are located symmetrically in respect to the first LED chips. | 2012-04-12 |
20120087126 | LIGHT SOURCE DEVICE AND DISPLAY DEVICE - There are provided a plurality of circuit boards having a light-emitting element mounted on a one surface and disposed apart from each other with a planar direction aligned, a support body positioned on the other surface side of the circuit boards for supporting the circuit boards, and a connector for electrically connecting the adjacent circuit boards to each other. Inserting holes for inserting a fixture for fixing the circuit boards to the support body are formed on the circuit boards apart from each other, and a dimension of the inserting hole is smaller than that of the other inserting hole. | 2012-04-12 |
20120087127 | Light source, device including light source, and/or methods of making the same - Certain example embodiments of this invention relate to techniques for improving the performance of Lambertian and non-Lambertian light sources. In certain example embodiments, this is accomplished by (1) providing an organic-inorganic hybrid material on LEDs (which in certain example embodiments may be a high index of refraction material), (2) enhancing the light scattering ability of the LEDs (e.g., by fractal embossing, patterning, or the like, and/or by providing randomly dispersed elements thereon), and/or (3) improving performance through advanced cooling techniques. In certain example instances, performance enhancements may include, for example, better color production (e.g., in terms of a high CRI), better light production (e.g., in terms of lumens and non-Lambertian lighting), higher internal and/or external efficiency, etc. | 2012-04-12 |
20120087128 | Lighting and Ventilating System and Method - Embodiments of the invention provide a lighting and ventilating system including a main housing. The main housing can include an inlet through which air can be received within the main housing and an outlet through which the air can exit the main housing. A fan wheel can be supported in the main housing and it can be operable to generate a flow of air. A grille can be coupled to the main housing and the grille can comprise at least one aperture. The system can include a plate coupled to the grille and the plate can include a recess. Also, a set of illumination devices can be at least partially disposed within the recess. | 2012-04-12 |
20120087129 | POSITIONABLE LIGHTING SYSTEMS AND METHODS - A lighting assembly includes a lighting unit having a housing defining an internal cavity and an opening. A light source is assembled within the internal cavity of the housing. An electrical wire is electrically connected to the light source at a first end and is configured to be contained at least in part within the housing. The opening is configured to permit withdrawal of a user selected amount of the electrical wire from within the internal cavity and/or to permit a user selected amount of the electrical wire to be inserted into the internal cavity. | 2012-04-12 |
20120087130 | ALTERNATING CURRENT LED ILLUMINATION APPARATUS - An alternating current LED illumination apparatus includes a heat dissipation plate, a plurality of LED chips arranged on the heat dissipation plate, a circuit layer, an encapsulation, two electrodes located on the heat dissipation plate and exposed out of the encapsulation, and a driving element. The LED chips are thermally connected with the heat dissipation plate, and at least two of the LED chips are connected in anti-parallel. The encapsulation covers the LED chips and at least part of the circuit layer. The driving element comprises a transformer and a switch. The transformer has an input terminal and an output terminal, the input terminal is configured to connect to an alternating current (AC) power source, and the output terminal is electrically connected with the electrodes by the switch. | 2012-04-12 |
20120087131 | LIGHTING DEVICE - Movable lighting device for lighting interiors, characterized in that it consists of a three-dimensional geometric body that has translucent or transparent faces, inside which is a light source, and in that the lateral faces thereof have horizontal-slat Venetian-type blinds. | 2012-04-12 |
20120087132 | Lighting and Ventilating System and Method - Embodiments of the invention provide a lighting and ventilating system including a main housing. The main housing can include an inlet through which air can be received within the main housing and an outlet through which the air can exit the main housing. A fan wheel can be supported in the main housing and it can be operable to generate a flow of air. A grille can be coupled to the main housing and the grille can comprise a plurality of apertures and a second set of illumination devices. The system further can include a lamp housing coupled to the grille, the lamp housing can include a first set of illumination devices. Also, a plate can be coupled to the grille so that the plate is adjacent to the second set of illumination devices. | 2012-04-12 |
20120087133 | Lighting Device - An illumination device, comprising a basic body ( | 2012-04-12 |
20120087134 | LIGHTING DEVICE - One object is to reduce the weight of a lighting device including an electroluminescent material. An object is to achieve high reliability of a lighting device including an electroluminescent material. In a lighting device including a light-emitting element having an electroluminescence (EL) layer, a housing formed using an organic resin whose refractive index is greater than or equal to that of the EL layer is provided to cover a light emission surface and a top surface of the light-emitting element. In addition, an inorganic insulating film covering an inner wall of the housing provided with the light-emitting element and the top surface of the light-emitting element is preferably provided. | 2012-04-12 |
20120087135 | Lamp Shade Structure - A lamp shade structure includes a shade body for being mounted by a light emitting member. The shade body includes first and second ends spaced in a width direction perpendicular to a longitudinal axis of the light emitting member. The shade body further includes an inner surface having a convex upper end. The inner surface includes a first reflecting surface between the first end and the upper end of the inner surface and a second reflecting surface between the second end and the upper end of the inner surface. A length of the first reflecting surface in the width direction is larger than a length of the second reflecting surface in the width direction so that the light emitting member can generate optical beams of unsymmetrical illuminance distribution, and that the effect of increasing beam angle and expanding illumination range can then be achieved. | 2012-04-12 |
20120087136 | OPTICAL DEVICE - An optical device includes: a chassis that receives an optical element; a first terminal that is extended from a bottom face of the chassis and is electrically connected to the optical element; a second terminal that is extended from a side face of the chassis and is electrically connected to the optical element; a projection portion that is provided on the bottom face of the chassis and a top face of the projection portion is higher than a distal end of the first terminal. | 2012-04-12 |
20120087137 | LED PACKAGE MOUNT - A light emitting diode package mounting apparatus comprises a heatsink defining a surface comprising one of a male or female connector. An LED package has a base where a portion of the base defines the other of the female or male connector. The connectors engage one another such that a force is exerted on the base that presses the LED package against the surface. To assemble the LED package in the heat sink, the LED package is located on the surface. The LED package and heatsink are moved relative to one another such that the male connector is inserted into the female connector. | 2012-04-12 |
20120087138 | Lighting and Ventilating System and Method - Embodiments of the invention provide a lighting and ventilating system including a main housing. The main housing can include an inlet through which air can be received within the main housing and an outlet through which the air can exit the main housing. A fan wheel can be supported in the main housing and it can be operable to generate a flow of air. A grille can be coupled to the main housing and the grille can include louvers. The system further can include a lamp housing coupled to the grille, the lamp housing can include a first set of illumination devices and a second set of illumination devices. The second set of illumination devices can be capable of emitting a dynamic illumination event. | 2012-04-12 |
20120087139 | LED ROAD LIGHT - An LED road light has a heat sink embedded with an LED module, a base and a light pole holder assembly. The base, the heat sink and the light pole holder assembly are assembled by slidably and respectively mounting ribs into slots. Accordingly, the contact area of such engagement is relatively larger than that using screws, thereby enhancing combined strength and extending the life duration of the LED road light. Besides, the engagement mechanism using ribs and slots also provide workers a convenient and time-saving assembling process. | 2012-04-12 |
20120087140 | Light Module - A light module is disclosed. The light module includes a first printed circuit board, a second printed circuit board, a light source, and a fixing casing, wherein the first printed circuit board and the second printed circuit board each has a fixing part, and the fixing part of the second printed board is attached to the fixing part of the first printed board. The light source is disposed on the first printed circuit board to couple to the first printed board and the second printed board. The fixing casing has a contact surface. When the fixing casing is fixed onto the fixing parts of the second printed circuit board and the first printed circuit board, the contact surface contacts the fixing part so that the second printed circuit board is clamped between the contact surface and the first printed circuit board. | 2012-04-12 |
20120087141 | Trouble light advanced - The trouble light simply incorporates a magnet on the rear of a standard trouble light | 2012-04-12 |
20120087142 | LIGHTING APPARATUS, ESPECIALLY A READING LAMP - The lighting apparatus, especially a reading lamp, has a light source ( | 2012-04-12 |
20120087143 | RING LIGHT ILLUMINATOR AND BEAM SHAPER FOR RING LIGHT ILLUMINATOR - A ring light illuminator with annularly arranged light sources is disclosed. To each light source there corresponds a beam shaper comprising a light collector, a homogenizing means for light from the light source, and an imaging means for imaging an output of the homogenizing means into an area to be illuminated. The homogenizing means in embodiments is a rod, into which light from the light collector is directed. The end of the rod opposite the light collector is imaged by the imaging means into the area to be illuminated. | 2012-04-12 |
20120087144 | LED ILLUMINATION DEVICE - The invention discloses a LED illumination device comprising a LED light source and a light guide device. The LED light source provides a light. The light guide device comprises a light-receiving surface, a light-emitting surface, and a body. The light-receiving surface receives the light from the light source. The body has a light channel for guiding the light toward the light-emitting surface. In addition, the body comprises at least one light splitter, and a part of the light within the light channel penetrates the body through the light splitter. Specially, the light guide device with the light splitter can reduce the amount of light emitting devices. The illumination system can be conspicuous at night. | 2012-04-12 |
20120087145 | Light Emitting Decorative Panels - Light emitting decorative panels using a light source at the edge thereof that may have a desired uniformity of light emission from a pattern thereon, and which are not subject to local shadows (shading) in a pattern part from patterns or pattern parts between the respective pattern or pattern part and the light source. The elimination of shading is achieved by the depressions of a given geometry disposed in an arc having a center at the light source, and sizes each depression or arc segment of a depression in being chosen accordance with 1), the distance of the respective depression or depression segment from the source of light, and 2), the number of depressions between the respective depression and the source of light, with a second order correction for the position of depressions between the respective depression and the source of light. | 2012-04-12 |
20120087146 | LIGHT-EMITTING DEVICE AND IMAGE DISPLAY APPARATUS - A light-emitting device includes: a light guiding member; a plurality of light-emitting elements; and a reflection member. A light reflection/exit surface of the light guiding member has a concave-convex pattern including a plurality of convex portions reflecting light emitted from the light-emitting elements inward. On the assumption that L is a distance between the light-emitting elements, t is a thickness of the light guiding member, an incident angle φ of the light on the light reflection/exit surface is an angle between a line segment obtained by projecting a light path from the light-emitting element to the light reflection/exit surface and a line segment extending from a central point of the light-emitting element to the light reflection/exit surface, and θ is a maximum angle range of reflected light, a value of the angle range θ decreases as a value of the incident angle φ increases in a range of 0<φ2012-04-12 | |
20120087147 | Light Emitting Decorative Panels - Light emitting decorative panels using a light source at the edge thereof that may have a desired uniformity of light emission from a pattern thereon, and which are not subject to local shadows (shading) in a pattern part from patterns or pattern parts between the respective pattern or pattern part and the light source. The elimination of shading is achieved by the depressions of a given geometry disposed in an arc having a center at the light source, and sizes each depression or arc segment of a depression in being chosen accordance with 1), the distance of the respective depression or depression segment from the source of light, and 2), the number of depressions between the respective depression and the source of light, with a second order correction for the position of depressions between the respective depression and the source of light. | 2012-04-12 |
20120087148 | Backlight Module and Display Device and Electronic Device Using the Same - A backlight module for a display device is provided. The backlight module mainly includes a light guide plate and a first quantity of light emitting elements. The light guide plate includes a first incident plane with a first length. Each of the light emitting elements emits light to form a specific emitting region and is disposed at a position away from the first incident plane in a first distance, and a first interval is between each adjacent light emitting elements. The first interval equals to the ratio of the first length to the first quantity, and the ratio is between eight and forty. The non-intersection area of the emitting region of each two adjacent light emitting elements is outside the display area of the display device. | 2012-04-12 |
20120087149 | ULTRA-THIN LIGHT GUIDE FOR CLUSTER GAUGE ILLUMINATION OVER DISPLAY STRUCTURES - An ultra-thin light guide assembly includes a light guide having a maximum thickness of one millimeter, a light source disposed adjacent a portion of the light guide to emit light rays into the light guide, a reflective material disposed on at least a portion of a first side of the light guide to maximize an internal reflection of the light rays in the light guide, a light extraction feature integrated with the light guide to direct light rays through a second side of the light guide, and a flexible circuit disposed adjacent at least a portion of the light guide, the light source in electrical communication with the flexible circuit to selective energize the light source. | 2012-04-12 |
20120087150 | BACKLIGHT AND LIQUID CRYSTAL DISPLAY DEVICE - A side light type backlight includes a light source including a plurality of LEDs, and a light guide plate. One of the end surfaces of the light guide plate is a light incidence surface at which a plurality of R-LEDs, a plurality of G-LEDs and a plurality of B-LEDs are arranged. LEDs satisfy the relationship of: a distribution range of light emitted from G-LEDs | 2012-04-12 |
20120087151 | DISPLAY DEVICE - Disclosed is a display device wherein a light emitting element can have a longer service life, while suppressing luminance unevenness without causing an increase in cost or size. The display device comprises a light guide plate ( | 2012-04-12 |
20120087152 | Light Guiding Structure of a Light Guide Plate - A light guiding structure of a light guide plate is provided. The light guiding structure comprises a plurality of protrusion ridge portions extending along a longitudinal direction. The height or the vertex angle of each protrusion ridge portion periodically or randomly varies along the longitudinal direction. | 2012-04-12 |
20120087153 | INDIRECT D. C. CONVERTER WITH A SWITCHING FREQUENCY BEING DEPENDENT ON THE LOAD AND THE INPUT VOLTAGE AND A DEAD TIME DEPENDING ON THE SWITCHING FREQUENCY (Also Known as CONTROL CIRCUITRY, VOLTAGE CONVERTER, METHOD, AND COMPUTER PROGRAM) - A control circuitry for controlling operation of switches of a non-regulated DC-to-DC converter is disclosed. The converter comprises a transformer having a primary winding, which is arranged to be excited by means of electricity provided through the switches, and an output connected to at least one secondary winding of the transformer via a rectifier circuitry and suitable to provide an output voltage to a load circuitry. The control circuitry comprises measuring means arranged to determine a load caused by any load circuitry; and adjustment means arranged to adjust a switching frequency for operating the switches in response to the determined load such that the switching frequency is decreased for an increased load and vice versa. A non-regulated DC-to-DC converter, a method for controlling operation of switches, and a computer program are also disclosed. | 2012-04-12 |
20120087154 | VOLTAGE SUPPLY DEVICE FOR A LOAD - A voltage supply device for a load, in particular for a network, has an energy store that can be connected to connection terminals and a voltage transformer with at least one electronic switch. A reverse polarity protection is in contact with the connection terminals and is designed to convert voltage delivered from the energy store into control voltage for active activation of the electronic switch when the polarity of the voltage is reversed. | 2012-04-12 |
20120087155 | AC-DC CONVERTER - An AC-DC converter is disclosed. The AC-DC converter includes an OFF-time clamping circuit. The OFF time clamping circuit outputs a triggering signal when a main switch circuit of the AC-DC converter is switched from ON state to OFF state. When an input AC voltage is too small, and a terminal voltage at a first current-conducting terminal of the main switch circuit of the AC-DC converter is lower than a specific voltage such that a switching control circuit can not turn on the main switch circuit again, the switching control circuit can still turn on the main switch circuit again by the triggering signal. Therefore, the OFF time of the main switch circuit is clamped. The switching control circuit can control the switching operation of the main switch circuit. | 2012-04-12 |
20120087156 | METHOD AND APPARATUS FOR LIMITING MAXIMUM OUTPUT POWER OF A POWER CONVERTER - An example power converter includes an energy transfer element, a switch, a controller, and a current offset circuit. The controller switches the switch between an ON state and an OFF state to regulate the output of the power converter and is adapted to terminate the ON state of the switch in response to a switch current flowing through the switch reaching a switch current threshold. The current offset circuit is coupled to the input to be directly powered from an input voltage of the power supply. The current offset circuit generates an offset current to flow through the switch only during the ON state of the switch in response to a magnitude of the input voltage. The input current of the power converter is adjusted in response to the offset current. | 2012-04-12 |
20120087157 | DC-TO-AC POWER INVERTING APPARATUS FOR PHOTOVOLTAIC MODULES - The disclosure provides a DC-to-AC power inverting apparatus for photovoltaic modules, which comprises two stages: a first stage including a resonant circuit in series, an isolating transformer with three windings, a full-bridge DC-to-AC converting unit operating in a high-frequency switch mode so as to reduce the transformer volume, and a full-wave rectifier; while a second stage including a half-bridge single-phase inverter unit with two active switches. In the first stage, any high-frequency AC signal produced from the primary winding of the isolating transformer is converter into a DC signal by the full-wave rectifier at the secondary winding of the isolation transformer. Moreover, the switching of the two active switches in the second stage is controlled to operate in a low-frequency mode using a switching frequency synchronized with the frequency of the public electrical supply to control the AC output, and thus to reduce the switching loss of the active switches. | 2012-04-12 |
20120087158 | Method and Apparatus for Controlling an Inverter Using Pulse Mode Control - A method and apparatus for controlling an inverter includes operating the inverter in a one of a normal run mode or a pulse mode depending on one or more criteria. When operating in the pulse mode, the inverter generates a sinusoidal output pulse waveform including a plurality of pulses having a determined pulse width. The pulse width is less than a half-wave period of a full-cycle sinusoidal waveform and may be determined as function of, for example, the output power of the inverter, a grid voltage, and/or other criteria. | 2012-04-12 |
20120087159 | QUADRATURE-CORRECTED FEEDFORWARD CONTROL APPARATUS AND METHOD FOR DC-AC POWER CONVERSION - An apparatus and method for controlling the delivery of a pre-determined amount of power from a DC source to an AC grid includes an inverter and an inverter controller. The inverter includes an input converter, an energy storage capacitor, and an output converter. The inverter controller includes an input converter controller and an output converter controller. The input converter controller includes feedforward controller configured to perform a calculation to determine a value for the duty cycle for the input converter such that: (1) the input converter delivers the pre-determined amount of power and (2) the magnitude of a ripple signal reflected into the input source is attenuated toward zero. The input converter controller may also include a quadrature corrector configured to determine the effectiveness of the calculation in attenuating the ripple and to adaptively alter the calculation to improve the effectiveness. | 2012-04-12 |
20120087160 | POWER FACTOR CORRECTION CIRCUIT - There is provided a power factor correction circuit capable of correcting a power factor of a power converting module through increasing an input current by switching a main switching element of a power converting module on the basis of a first reference wave having a slope based on a first signal and an error voltage, in particular, by limiting a switching frequency on the basis of a first reference wave having a slope based on a second signal lower than a first signal and an error voltage when the switching frequency of the main switching element increases because an input voltage of the power converting module is low. | 2012-04-12 |
20120087161 | POWER SUPPLY CONNECTED IN PARALLEL WITH A POWER SWITCH FOR THE CONTROL CIRCUIT THEREOF - A power converter circuit for generating a supply voltage for a power semiconductor switch. A series circuit formed of a diode unit having diodes connected in reverse and a protection circuit is connected in parallel with the power semiconductor switch. The diode voltage generates a feed voltage that is transformed, rectified, and provided as a supply voltage. | 2012-04-12 |
20120087162 | HIGH VOLTAGE POWER SUPPLY - A high voltage power supply includes a frequency signal generation unit, a voltage generation unit, and a voltage amplifying unit. The frequency signal generation unit generates a frequency signal. The voltage generation unit generates an input voltage according to the frequency signal generated by the frequency signal generation unit. The voltage amplifying unit amplifies and outputs the input voltage by rectifying and smoothing the input voltage a plurality of times. A voltage output by the voltage amplifying unit is changed by changing a frequency of the frequency signal. | 2012-04-12 |
20120087163 | POWER SUPPLY APPARATUS - A relay contact is connected between positive power supply input terminals of first and second inverters, and a relay contact is connected between negative power supply input terminals of the inverters. A positive DC power supply terminal is connected to the positive power supply input terminal of the first inverter, and a negative DC power supply terminal is connected to the negative power supply input terminal of the second inverter. A drive unit opens or closes the relay contacts when a voltage appearing between the positive and negative DC power supply terminals is larger than a predetermined value or is not larger than the predetermined value, respectively. A diode has its anode and cathode connected to the negative power supply input terminal of the first inverter the positive power supply input terminal of the second inverter, respectively. | 2012-04-12 |
20120087164 | CONTACTLESS INTERFACE - Power extracted from an antenna inductively coupled to an alternating magnetic field is regulated to provide voltage supplies. In some implementations, a first voltage supply (e.g., 3.8 volts) provides regulated voltage to analog circuits and a second, lower, voltage supply (e.g., 1.4 volts) provides regulated voltage to digital circuits. The first voltage supply is regulated, using shunt regulation, by a first voltage regulator circuit. The second voltage supply is regulated, using a series regulation, by a second voltage regulator circuit. The second voltage regulator circuit is supplied by the shunted current from the first voltage regulator. Excess shunt current provided by the first regulator circuit can be bypassed (e.g., bypassed to ground). The second voltage regulator circuit can use a timer circuit to control the amount of charge transferred to a second voltage supply rail. The timer circuit can compensate for different currents from the first voltage regulator circuit. | 2012-04-12 |
20120087165 | APPARATUS AND METHOD FOR CONTROLLING A POWER INVERTER - An apparatus and method for controlling a DC-to-AC inverter is disclosed. The DC-to-AC inverter may be configured to convert DC power received from an alternative energy source to AC power for supplying an AC grid or load. The inverter may determine whether the power presently supplied by the alternative energy source is less than a predetermined amount of power and, if so, disable an output converter of the inverter. Additionally, the inverter may predict the voltage of a DC bus of the inverter at a future point in time and, if the predicted DC bus voltage is greater than a predetermined maximum DC bus voltage, enable the output converter to transfer energy from the DC bus to the AC grid to reduce the DC bus voltage. | 2012-04-12 |
20120087166 | CAM-CONTROLLED ELECTROMECHANICAL ROTARY POWER INVERTER - The cam-controlled electromechanical rotary power inverter converts a plurality of DC source voltages to an AC power output by an electromechanical mechanism that includes a rotating assembly of cams intermittently contacting a series of brushes connected to the DC source voltages to sequentially add the DC voltages and then sequentially subtract the DC voltages over 360° of rotation of the cam assembly. In this manner, the inverter provides multilevel, e.g., seven discrete voltage levels, which are distributed as output sequentially in an additive manner and then a subtractive mariner to generate nearly sinusoidal voltages. Repeating sequences of brushes and cams over three 120° intervals allows for 3-phase AC voltage output from the inverter. | 2012-04-12 |
20120087167 | POWER CONVERSION DEVICE - Disclosed is a power conversion device which achieves reductions in switching loss due to a reverse recovery current and heat generation loss. Specifically disclosed is a power conversion device provided with a cascode element configured by electrically connecting a normally-on switching element and a normally-off switching element in series and connecting a gate terminal of the normally-on switching element and a source terminal of the normally-off switching element via a cascode connection diode, and a high-speed diode electrically connected in parallel with the cascode element and having a cathode region connected to a positive electrode terminal and an anode region connected to a negative electrode terminal. | 2012-04-12 |
20120087168 | MEMORY DEVICE INCLUDING VARIABLE RESISTANCE ELEMENTS - A memory device including variable resistance elements comprises a plurality of memory cells configured to store data; a first signal transmission/reception unit and a second signal transmission/reception unit configured to transmit a signal to the memory cells or receive a signal from the memory cells; a first transmission line arranged to couple first ends of the memory cells to the first signal transmission/reception unit; and a second transmission line configured to couple second ends of the memory cells to the second signal transmission/reception unit, wherein a first resistance of a first signal path coupled between the first and second signal transmission/reception units through a first memory cell of the memory cells is substantially equal to a second electrical resistance of a second signal path coupled between a second memory cell and the first and second signal transmission/reception units through a second memory cell of the memory cells. | 2012-04-12 |
20120087169 | CIRCUIT FOR CONCURRENT READ OPERATION AND METHOD THEREFOR - A non-volatile memory device includes a plurality of memory units provided in an array, each memory unit having a plurality of resistive memory cells and a local word line. Each resistive memory units has a first end and a second end, the second ends of the resistive memory cells of each memory unit being coupled to the local word line of the corresponding memory unit. A plurality of bit lines is provided, each bit line being coupled to the first end of one of the resistive memory cells. A plurality of select transistors is provided, each select transistor being assigned to one of the memory units and having a drain terminal coupled to the local word line of the assigned memory unit. First and second global word lines are provided, each global word line being coupled to a control terminal of at least one select transistor. First and second source lines are provided, each source line being coupled to a source terminal of at least one select transistor. The memory device is configured to concurrently read out all of the resistive memory cells in one of the memory units selected for a read operation. | 2012-04-12 |
20120087170 | Single Polysilicon Non-Volatile Memory - A one-time-programmable memory device comprises a one-time-programmable memory cell array, a voltage pumping circuit, and a programming verification circuit. The one-time-programmable memory cell array comprises a plurality of memory cells. Each memory cell is arranged at an intersection of a bit line and a word line. The voltage pumping circuit comprises a plurality of local voltage boost circuits. Each local voltage boost circuit is shared by a corresponding memory cell of the plurality of memory cells. The programming verification circuit is coupled to the one-time-programmable memory cell array for verifying that conduction current of programmed memory cells of the plurality of memory cells is greater than a predetermined current level after programming. Each local boost circuit isolates leakage current of a corresponding programmed memory cell, and prevents programming voltage failure due to current overloading at a corresponding voltage pumping circuit. | 2012-04-12 |
20120087171 | SEMICONDUCTOR MEMORY DEVICE INCLUDING VARIABLE RESISTANCE ELEMENTS AND MANUFACTURING METHOD THEREOF - A semiconductor memory device with a variable resistance element includes a plurality of active areas isolated from one another by an isolation layer formed in a substrate, a plurality of word lines crossing over the plurality of active areas, an auxiliary source line disposed between two selected word lines and commonly connected to at least two active areas among the plurality of active areas between the two selected word lines, and a plurality of contact plugs each connected to a corresponding active area. | 2012-04-12 |
20120087172 | SEMICONDUCTOR MEMORY AND SYSTEM - A semiconductor memory includes a real memory cell including a selection transistor and a resistance variable element which are connected in series between a first voltage line and a second voltage line through a connection node, a real amplification transistor having a gate connected to the connection node, a source connected to a reference voltage line, and a drain connected to a real read line, and a sense amplifier to determine a logic held in the real memory cell by receiving a voltage of the real read line varied with a voltage generated in the connection node by resistance dividing between a source/drain resistance of the selection transistor, and the resistance variable element, the selection transistor receiving a read control voltage at the gate thereof. | 2012-04-12 |
20120087173 | MEMORY ELEMENT, STACKING, MEMORY MATRIX AND METHOD FOR OPERATION - Disclosed is a memory element, a stack, and a memory matrix in which the memory element can be used. Also disclosed is a method for operating the memory matrix, and to a method for determining the true value of a logic operation in an array comprising memory elements. The memory element has at least a first stable state 0 and a second stable state 1. By applying a first write voltage V | 2012-04-12 |
20120087174 | Two Terminal Re Writeable Non Volatile Ion Transport Memory Device - A memory using mixed valence conductive oxides is disclosed. The memory includes a mixed valence conductive oxide that is less conductive in its oxygen deficient state and a mixed electronic ionic conductor that is an electrolyte to oxygen and promotes an electric field effective to cause oxygen ionic motion. | 2012-04-12 |
20120087175 | Asymmetric Write Current Compensation - An apparatus and method for compensating for asymmetric write current in a non-volatile unit cell. The unit cell comprises a switching device and an asymmetric resistive sense element (RSE), such as an asymmetric resistive random access memory (RRAM) element or an asymmetric spin-torque transfer random access memory (STRAM) element. The RSE is physically oriented within the unit cell relative to the switching device such that a hard direction for programming the RSE is aligned with an easy direction of programming the unit cell, and an easy direction for programming the RSE is aligned with a hard direction for programming the unit cell. | 2012-04-12 |
20120087176 | DATA SECURITY FOR DYNAMIC RANDOM ACCESS MEMORY USING BODY BIAS TO CLEAR DATA AT POWER-UP - A circuit and method erase at power-up all data stored in a DRAM chip for increased data security. All the DRAM memory cells are erased by turning on the transistors for the DRAM storage cells simultaneously by increasing the body voltage of cells. In the example circuit, the body voltage is increased by a charge pump controlled by a power-on-reset (POR) signal applying a voltage to the p-well of the memory cells. The added voltage to the p-well lowers the threshold voltage of the cell, such that the NFET transistor of the memory cell will turn on. With all the devices turned on, the data stored in the memory cells is erased as the voltage of all the cells connected to a common bitline coalesce to a single value. | 2012-04-12 |
20120087177 | SEMICONDUCTOR MEMORY DEVICE FOR DATA SENSING - A semiconductor memory device includes a memory cell and a first reference memory cell. The memory cell includes a first switching element and a first capacitor for storing data. The first switching element is controlled by a first wordline, and has a first terminal connected to a first terminal of the first capacitor and a second terminal connected to a first bitline. The first capacitor has a second terminal for receiving a first plate voltage. The first reference memory cell includes a first reference switching element and a first capacitor. The first switching element is controlled by a first reference wordline, and has a first terminal connected to a first terminal of the first reference capacitor and a second terminal connected to a second bitline. The first reference capacitor has a second terminal receiving a first reference plate voltage different from the first plate voltage. | 2012-04-12 |
20120087178 | SEMICONDUCTOR MEMORY DEVICE - Adverse effects of a parasitic resistance and a parasitic capacitance of a driver circuit to a memory cell causes problems of thermal disturbance to a not-selected cell, unevenness of application voltage, degradation of a memory element in reading. A capacitor (C) is provided above or beneath a memory cell (MC) that includes a memory element to which a current write memory information and a selection element connected to the memory element. A charge stored in this capacitor writes to the memory element. | 2012-04-12 |
20120087179 | MAGNETO-RESISTANCE ELEMENT AND SEMICONDUCTOR MEMORY DEVICE INCLUDING THE SAME - A magneto-resistance element is provided. The magneto-resistance element includes an underlying layer including a main metal selected from electrically conductive metals and an auxiliary metal selected from transition metals, a first magnetic layer stacked on the underlying layer, an insulation layer stacked on the first magnetic layer, and a second magnetic layer stacked on the insulation layer. | 2012-04-12 |
20120087180 | SEMICONDUCTOR INTEGRATED CIRCUIT FOR LOW AND HIGH VOLTAGE OPERATIONS - A semiconductor integrated circuit comprising a first circuit area for a low voltage operation and a second circuit area for a high voltage operation. The circuit areas comprise two vertically stacked backend patterned metal layers that are separated by an inter-metallic dielectric (IMD). The two metal layers and the IMD form a combination that is operable at the low voltage. The first circuit area uses a first portion of the combination for operating at the low voltage and the second circuit area uses a second portion of the combination for routing at the high voltage, the two metal layers in the second portion being interconnected through the IMD by via hole, for withstanding the high voltage. The first portion may comprise an array of magnetic random access memory (MRAM) devices and the second circuit area may comprise a display drive circuit. | 2012-04-12 |
20120087181 | Cross-Point Self-Aligned Reduced Cell Size Phase Change Memory - A programmable memory array is disclosed in which the phase change memory cells are self-aligned at the access devices and at the cross-points of the bit lines and the word lines. A method for making the array employs one line mask to define the bit lines and another line mask to define the word lines. The front end of line (FEOL) memory cell elements are in the same layer as the polysilicon gates. The bit lines and the word lines intersect over the devices, and the memory cell elements are formed at the intersections of the bit lines and the word line. | 2012-04-12 |
20120087182 | PHASE-CHANGE MEMORY WITH MULTIPLE POLARITY BITS HAVING ENHANCED ENDURANCE AND ERROR TOLERANCE - A Phase-Change Memory (PCM) apparatus including a data field for storing a data bits representing a data value or an inversion of the data value and a polarity field for storing a plurality of polarity bits for indicating that the data bits stored in the data field represent the data value or the inversion of the data value. In one embodiment an odd number of set polarity bits indicates that the data bits represent the inversion of the data value and an even number of set polarity bits indicates that the data bits represent the data value. The PCM apparatus has enhanced endurance and improved error tolerance. | 2012-04-12 |
20120087183 | METHODS OF OPERATING PRAMS USING INITIAL PROGRAMMED RESISTANCES AND PRAMS USING THE SAME - A method of operating a PRAM device can be provided by reading a PRAM reference cell to determine an initial programmed resistance of the PRAM reference cell and determining whether the initial programmed resistance has been reduced to below a predetermined reference threshold resistance. | 2012-04-12 |
20120087184 | Magnetic Random Access Memory (MRAM) Layout with Uniform Pattern - A large scale memory array includes a uniform pattern of uniformly sized dummy bit cells and active bit cells. Sub-arrays within the large scale memory array are separated by the dummy bit cells. Signal distribution circuitry is formed with a width or height corresponding to the width or height of the dummy bit cells so that the signal distribution circuitry occupies the same footprint as the dummy bit cells without disrupting the uniform pattern across the large scale array. Edge dummy cells of a similar size or larger than the standard size bit cells may be placed around the edge of the large scale array to further reduce pattern loading affects. | 2012-04-12 |
20120087185 | MAGNETIC LATCH MAGNETIC RANDOM ACCESS MEMORY (MRAM) - A spin-transfer torque magnetic random access memory (STTMRAM) element is configured to store a state when electrical current is applied thereto. The STTMRAM element includes first and second free layers, each of which having an associated direction of magnetization defining the state of the STTMRAM element. Prior to the application of electrical current to the STTMRAM element, the direction of the magnetization of the first and second free layers each is in-plane and after the application of electrical current to the STTMRAM element, the direction of magnetization of the second free layer becomes substantially titled out-of-plane and the direction of magnetization of the first free layer switches. Upon electrical current being discontinued, the direction of magnetization of the second free layer remains in a direction that is substantially opposite to that of the first free layer. | 2012-04-12 |
20120087186 | MULTI-BIT MEMORY WITH SELECTABLE MAGNETIC LAYER - An apparatus and associated method for a multi-bit memory capable of being selected with a magnetic layer. Various embodiments of the present invention are generally directed to a first selection layer with a low coercivity that is disposed between first and second storage layers that each have a high coercivity. In response to magnetic saturation of the first selection layer, programming of a logical state to the second storage layer is allowed. | 2012-04-12 |
20120087187 | Method for Programming a Floating Gate - The invention provides methods for programming a floating gate. A floating gate tunneling device is used with an analog comparing device in a circuit having a floating reference node and an offset-mitigating feedback loop for iteratively programming a floating gate, or multiple floating gates. | 2012-04-12 |
20120087188 | STRUCTURE AND INHIBITED OPERATION OF FLASH MEMORY WITH SPLIT GATE - A method of performing a reading operation to a memory device including a plurality of flash memory cells. The method includes applying a first voltage bias to a control gate of a selected memory cell in the flash memory array and applying a second voltage bias to a word line of the selected memory cell. A control gate of an unselected memory cell in the flash memory array is grounded and a third voltage bias is applied to a word line of the unselected cell to turn off a word line channel of the unselected memory cell. The selected memory cell and unselected memory cell are configured in the memory device and are connected to different word lines. The first voltage bias and the second voltage bias have a same polarity. The third voltage bias and the second voltage bias have opposite polarities. | 2012-04-12 |
20120087189 | Non-Volatile Memory Device - A non-volatile memory device includes a first sector including a first sector selection transistor and a first plurality of pages connected to the first sector selection transistor, and a second sector including a second sector selection transistor and a second plurality of pages connected to the second sector selection transistor. Each of the first and second plurality of pages includes a memory transistor and a selection transistor, and a number of pages in the first plurality of pages is greater than a number of pages in the second plurality of pages. | 2012-04-12 |
20120087190 | Write BIAS condition for 2T-string NOR flash cell - This invention discloses circuit and methods of a NAND-based 2T-string NOR flash cell structure as a building block for a fast random-read NOR flash memory. The key concept of this new set of bias conditions in cell array improves over the critical concern of punch-through issue when cell is migrating to the more advanced technology node of next generation. The invention adopts a novel preferable symmetrical 2T-string NOR flash cell. Each NAND or NAND like cell of this 2T-string NOR cell is to store 2 bits and is preferable to be made of N-channel device. The cell is preferable to use Fowler-Nordheim Tunneling scheme for both erase and program operations. The invention is to provide a novel 2T-string NOR flash cell structure made of N-channel device offering most flexible erase sizes in unit of byte, page, sector, block and chip with the least program and erase disturbances. | 2012-04-12 |
20120087191 | Symmetric, Differential Nonvolatile Memory Cell - Some embodiments relate to a differential memory cell. The memory cell includes a first transistor having a source, a drain, a gate, and a body. A first capacitor has a first plate and a second plate, wherein the first plate is coupled to the gate of the first transistor and extends over the body region. The memory cell also includes a second transistor having a source, a drain, a gate, and a body, wherein the source and body of the second transistor is coupled to the second plate of the first capacitor. A second capacitor has a third plate and a fourth plate, wherein the third plate is coupled to the gate of the second transistor and the fourth plate is coupled to the source and the body of the first transistor. | 2012-04-12 |
20120087192 | Non-Volatile Memory Device with Program Current Clamp and Related Method - A method of programming a nonvolatile memory cell which comprises a select transistor and a memory transistor includes applying a preset limit current to a first input of the memory cell, applying a limit voltage to a current limiting circuit electrically connected to a second input of the memory cell, applying a limit voltage to stabilize a voltage drop of the memory cell, and applying a ramped gate voltage to the memory cell to program the memory cell with a preset limited current determined by the current limiting circuit. | 2012-04-12 |
20120087193 | FLASH MULTI-LEVEL THRESHOLD DISTRIBUTION SCHEME - A threshold voltage distribution scheme for multi-level Flash cells where an erase threshold voltage and at least one programmed threshold voltage lie in an erase voltage domain. Having at least one programmed threshold voltage in the erase voltage domain reduces the Vread voltage level to minimize read disturb effects, while extending the life span of the multi-level Flash cells as the threshold voltage distance between programmed states is maximized. The erase voltage domain can be less than 0V while a program voltage domain is greater than 0V. Accordingly, circuits for program verifying and reading multi-level Flash cells having a programmed threshold voltage in the erase voltage domain and the program voltage domain use negative and positive high voltages. | 2012-04-12 |
20120087194 | DATA WRITE TRAINING METHOD AND SEMICONDUCTOR DEVICE PERFORMING THE SAME - Embodiments may be directed to a method of operating a semiconductor device, the method including receiving a first write training command, receiving a first write data responsive to the first write training command through a first data line, and transmitting the first write data through a second data line. Transmitting the first write data is performed without an additional training command. | 2012-04-12 |
20120087195 | SEMICONDUCTOR STORAGE DEVICE AND METHOD FOR PRODUCING SEMICONDUCTOR STORAGE DEVICE - A semiconductor storage device comprises a timing control circuit that generates a signal for controlling at least one of a read operation and a write operation; an input-signal pad; a plurality of control-signal pads; and a switch circuit coupled to at least one of the plurality of control-signal pads. The switch circuit generates a first control signal to be supplied to the timing control circuit based on a signal from the input-signal pad in a first mode. | 2012-04-12 |
20120087196 | GATE OXIDE BREAKDOWN-WITHSTANDING POWER SWITCH STRUCTURE - The present invention proposes a gate oxide breakdown-withstanding power switch structure, which is connected with an SRAM and comprises a first CMOS switch and a second CMOS switch respectively having different gate-oxide thicknesses or different threshold voltages. The CMOS switch, which has a normal gate-oxide thickness or a normal threshold voltage, provides current for the SRAM to wake up the SRAM from a standby or sleep mode to an active mode. The CMOS switch, which has a thicker gate-oxide thickness or a higher threshold voltage, provides current for the SRAM to work in an active mode. The present invention prevents a power switch from gate-oxide breakdown lest noise margin, stabilization and performance of SRAM be affected. | 2012-04-12 |
20120087197 | SEMICONDUCTOR MEMORY APPARATUS AND METHOD FOR CONTROLLING THE SAME - A semiconductor memory apparatus includes: a skew monitoring unit configured to receive a reference voltage and monitor a voltage characteristic of a corresponding MOS transistor; a voltage sensing unit configured to provide a sensing voltage corresponding to the monitoring result of the voltage characteristic; a coding unit configured to multiplex an output signal of the voltage sensing unit and provide a skew control signal; and an internal voltage regulation unit configured to provide an internal voltage by regulating an internal bias voltage in response to the skew control signal. | 2012-04-12 |
20120087198 | SEMICONDUCTOR MEMORY DEVICE WITH ADJUSTABLE SELECTED WORK LINE POTENTIAL UNDER LOW VOLTAGE CONDITION - A level shift element adjusting a voltage level at the time of selection of a word line according to fluctuations in threshold voltage of a memory cell transistor is arranged for each word line. This level shift element lowers a driver power supply voltage, and transmits the level-shifted voltage onto a selected word line. The level shift element can be replaced with a pull-down element for pulling down the word line voltage according to the threshold voltage level of the memory cell transistor. In either case, the selected word line voltage level can be adjusted according to the fluctuations in threshold voltage of the memory cell transistor without using another power supply system. Thus, the power supply circuitry is not complicated, and it is possible to achieve a semiconductor memory device that can stably read and write data even with a low power supply voltage. | 2012-04-12 |