44th week of 2009 patent applcation highlights part 28 |
Patent application number | Title | Published |
20090268531 | 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. | 2009-10-29 |
20090268532 | Systems and Methods for Writing to a Memory - An integrated circuit includes memory segments, each having at least one memory cell configurable in first and second states to store data, and a controller that controls programming and erasing of the memory segments. The controller maps external memory addresses of write data to internal memory addresses of erased memory segments with no memory cells in the first state such that erased memory segments are programmed with write data. When a write access occurs for an external memory address previously mapped to an internal memory address of a programmed memory segment with at least one memory cell in the first state, the controller remaps the external memory address to another internal memory address of an erased memory segment. The controller identifies programmed memory segments to be erased and controls selective erasure of the identified programmed memory segments, such as programmed memory segments no longer mapped to an external memory address. | 2009-10-29 |
20090268533 | Sensing delay circuit and semiconductor memrory device using the same - A sensing delay circuit includes a logic element which responds to a test mode signal to transfer a start signal, a delay unit which is configured of a plurality of inverters having MOS transistors with controlled threshold voltage, and receives external voltage as bulk voltage and delays an output signal from the logic element by a predetermined period, and a buffer which responds to an output signal from the delay unit to buffer the output signal from the logic element and output it. | 2009-10-29 |
20090268534 | SEMICONDUCTOR MEMORY DEVICE AND TEST METHOD THEREOF - A semiconductor memory device comprises a memory cell array having memory cells arranged at intersections of word lines and bit lines, a first sense amplifier connected to a bit line at a predetermined position of the bit lines, a second sense amplifier connected to a bit line adjacent to the bit line at the predetermined position, a supplying circuit for supplying a predetermined voltage to each bit line connected to the first or second sense amplifier, and a sense amplifier control circuit capable of controlling the first and second sense amplifiers independently. In the semiconductor memory device, the sense amplifier control circuit performs a control in which an operation of either of the first and second sense amplifiers is stopped, the predetermined voltage is supplied to the bit line connected to the stopped sense amplifier, and the other of the first and second sense amplifiers is operated. | 2009-10-29 |
20090268535 | SEMICONDUCTOR DEVICE GUARANTEEING STABLE OPERATION - A semiconductor device includes a data line pair formed of a data line and a complementary data line; a first sensing amplification unit including a first sensing amplifier and a second sensing amplifier that are cross-coupled with the data line and the complementary data line; a first variable current source supplying or flowing out a first variable current to the first sensing amplifier; and a second variable current source supplying or flowing out a second variable current to the second sensing amplifier. A current amount of the first variable current is different from a current amount of the second variable current. | 2009-10-29 |
20090268536 | Precharge voltage supply circuit and semiconductor device using the same - A precharge voltage supply circuit and a semiconductor device using the same are disclosed. The semiconductor device includes a first comparator for comparing a precharge voltage with a first reference voltage having a first voltage level and outputting a first compare signal as a result of the comparison, a second comparator for comparing the precharge voltage with a second reference voltage having a second voltage level and outputting a second compare signal as a result of the comparison, a decoder configured to receive and decode the first compare signal and the second compare signal and output a plurality of control signals as a result of the decoding, and a precharge voltage supply circuit configured to receive the plurality of control signals and supply the precharge voltage. | 2009-10-29 |
20090268537 | Semiconductor memory device - A semiconductor memory device of the invention comprises unit blocks into which the memory cell array is divided, rows of sense amplifiers arranged at one end and the other end of the plurality of bit lines in the unit block, switch means for switching a connection state between the unit block and the row of sense amplifiers attached to the unit block; and control means for controlling the switch means so as to form a transfer path from the row of sense amplifiers attached to a predetermined the unit block leading to the row of sense amplifiers as a saving destination not attached to the predetermined the unit block. This row of sense amplifiers attached to the predetermined the unit block functions as a cache memory. | 2009-10-29 |
20090268538 | Current sensing circuit and semiconductor memory device including the same - To provide a current sensing circuit that detects a difference between a cell current and a reference current. The current sensing circuit includes: current mirror circuits of which the input terminal is connected with a reference current source; a differential amplifier of which the one input terminal is supplied with a potential of an electrical connection point between an output terminal of the current mirror circuit and a memory cell and of which the other input terminal is supplied with a reference potential; and an equalizing circuit that short-circuits the both input terminals of the differential amplifier in response to an equalizing signal. Thereby, the both input terminals can be kept at the same potential immediately before a sensing operation starts, and thus, even when the cell current is weak, a highly sensitive sensing operation can be performed at high speed. | 2009-10-29 |
20090268539 | Chip, Multi-Chip System in a Method for Performing a Refresh of a Memory Array - A chip includes a memory array and a refresh counter. The refresh counter is configured to receive refresh trigger signals. The refresh counter is configured or configurable to initiate a refresh of the memory array only once per i of the received refresh trigger signals where i is a number greater than 1. | 2009-10-29 |
20090268540 | Systems and Methods for Dynamic Power Savings in Electronic Memory Operation - Power reduction is accomplished in an electronic memory by segmenting portions of the memory and only enabling certain memory portions depending upon where the memory is to be accessed. In one embodiment, the bit lines are segmented using latch repeaters to control address selection with respect to segments beyond a first segment. The latch repeaters are, in one embodiment, allowed to remain in their operated/non-operated state at the completion of a memory read/write cycle. This then avoids successive enabling pulses when the same segment is accessed on successive cycles. | 2009-10-29 |
20090268541 | DESIGN STRUCTURE FOR ESTIMATING AND/OR PREDICTING POWER CYCLE LENGTH, METHOD OF ESTIMATING AND/OR PREDICTING POWER CYCLE LENGTH AND CIRCUIT THEREOF - A design structure is embodied in a machine readable medium for designing, manufacturing, or testing a design. The design structure includes a threshold register having a counter, a count register, and a non-volatile storage for storing a state when a value of the count register equals or exceeds a value of the threshold register. Also provided is a method of predicting and/or estimating a power cycle duration in order to save a state in non-volatile memory and a circuit. The method includes setting a threshold value; determining that the threshold value has been equaled or exceeded; and saving the state in the non-volatile memory at a first checkpoint based on the threshold value being equaled or exceeded. | 2009-10-29 |
20090268542 | SEMICONDUCTOR MEMORY DEVICE - A semiconductor memory device includes a row control circuit block and a column control circuit block each performing an access control over a memory cell array, a data I/O circuit block transmitting and receiving data to and from the memory cell array, and a control circuit changing at least a part of the row control circuit block, the column control circuit block, and the data I/O circuit block from a standby state into an active state in response to a setting of a predetermined mode signal to a mode register. According to the present invention, even if it is necessary to turn predetermined circuit blocks into the active state by an operation other than a read or write operation, there is no need to always set these circuit blocks into the active state. | 2009-10-29 |
20090268543 | MEMORY CONTROL CIRCUIT AND MEMORY ACCESSING METHOD - A control circuit applied in a memory that comprises a first memory block and a second memory block, and each of the first and the second memory blocks includes a boundary cell. The control circuit comprises an address decoder, a first Y-multiplexer, and a second Y-multiplexer. The address decoder provides a plurality of column selection signals capable of being a boundary value. The first Y-multiplexer corresponds to the first memory block and provides a first boundary data channel for a boundary cell of the first memory block. The second Y-multiplexer corresponds to the second memory block and provides a second boundary data channel for a boundary cell of the second memory block. The first and the second boundary data channels are enabled simultaneously in response to the boundary value for outputting boundary data stored in the boundary cell of the first memory block and that of the second memory block. | 2009-10-29 |
20090268544 | MEMORY DEVICE AND METHOD HAVING PROGRAMMABLE ADDRESS CONFIGURATIONS - A memory device includes a configurable address register having a first set of input buffers coupled to a first set on address bus terminals and a second set of input buffers coupled to a second set of address bus terminals. In a first addressing configuration, address signals are simultaneously applied to the address bus terminals in the first and second sets, and they are simultaneously stored in respective address registers. In a second addressing configuration, a plurality of sets of address signals are sequentially applied to the address bus terminals in only the first set of address bus terminals. Each set of address signals is then stored in a different address register. | 2009-10-29 |
20090268545 | Mixing device and method of mixing - The present invention is a mixing device and a method of mixing viscous fluids with a mixing device. The mixing device includes a shaft and a first and second supports mounted for rotation with the shaft. A plurality of vanes extend from each support, the vanes defining open ends of the mixer into which fluid is drawn, and openings between the vanes through which fluid is expelled. In use, the mixing device is located in a viscous fluid and the shaft is rotated, thereby effecting rotation of the vanes, causing fluid to move through the vanes and mix the fluid. | 2009-10-29 |
20090268546 | DYNAMIC MIXING APPLICATOR - An applicator assembly for mixing, homogenizing and/or emulsifying two or more components is disclosed. The applicator assembly includes a housing configured to receive a motor and a power source, a fluid supply source operably connected to the housing, the fluid supply sources including at least a first and a second source of solution, and a nozzle assembly extending from the housing and in fluid communication with the fluid supply source, the nozzle assembly including a smooth impeller for mixing the at least first and second solutions. | 2009-10-29 |
20090268547 | DEVICES, SYSTEMS AND METHODS FOR DRY POWDER PROCESSING - Superfine powder particles (70-400 mesh, mean average) are wetted in a processing unit that disperses the powder by impact with an impeller before substantial contact with a solvent, such as water. The impeller is provided with posts that extend the dispersion zone above the impeller to capture and disperse any powder that may accumulate on the top of the impeller. The impeller is driven by a variable speed motor to adjust the rotational speed of the impeller to increase the efficiency of wetting. Processing may be adapted to wetting of other superfine materials, such as clays. | 2009-10-29 |
20090268548 | MICROFLUIDIC SYSTEMS, DEVICES AND METHODS FOR REDUCING DIFFUSION AND COMPLIANCE EFFECTS AT A FLUID MIXING REGION - Microfluidic Systems, Devices and Methods for Reducing Diffusion and Compliance Effects at a Fluid Mixing Region. According to one embodiment, a microfluidic device is provided for combining fluids in a mixing region. The microfluidic device can include a fluid mixing region connected to a first and second microscale channel. The microscale channels can advance fluids to the fluid mixing region. The microscale channels can include constricted flow portions. According to another embodiment, the microscale channels can be connected to waste channels for removing fluid diffused into one of the channels from the other channel. According to yet another embodiment, a microfluidic system is provided for controlling the flow of fluids through the microscale channels for reducing or eliminating diffusion between the channels. | 2009-10-29 |
20090268549 | ANIMAL FEED AND INDUSTRIAL MIXER HAVING STAGGERED ROTOR PADDLES AND METHOD FOR MAKING AND USING SAME - An animal feed mixer includes a housing forming first and second chambers. An upper auger and a lower auger are mounted in one of the chambers and a rotor is mounted in the other of the chambers. The rotor includes a plurality of arm assemblies that are staggered with respect to one another, that overlap one another in length, and that have paddles affixed to the outer ends of radially extending arms. | 2009-10-29 |
20090268550 | Extruder Screw With Long Wearing Surfaces - A method of extending the life of an extruder screw by affixing tiles of wear-resistant material along the crest of the extruder screw flighting threads, and optionally grinding the hardened material to remove any sharp edges. In another configuration of the present invention, plates of wear-resistant material are secured to the leading edges of the extruder screw threads to further prolong the life of the extruder screw. | 2009-10-29 |
20090268551 | MIXER WITH BEARING TUBE FOR REDUCING BEATER SHAFT VIBRATION - A mixer is disclosed that includes an elongated bearing tube with at least two bearings therein in which a first one of the bearings is disposed at one end of the bearing tube and a second one of the bearings is disposed at the other end of the bearing tube. Shaft of an electric motor is rotatably supported by the bearings. Drive shaft of a beater secured to the motor shaft is capable of rotating with a minimum vibration. | 2009-10-29 |
20090268552 | Methods of Range Selection for Positioning Marine Seismic Equipment - A method for selecting a signal arrival for determining an accurate position of seismic equipment includes the steps of transmitting a signal from a pinger; predicting a direct arrival and a reflected arrival of the signal at a receiver, wherein each arrival is the time between the transmission of the signal to reception of the signal; measuring arrivals of the signal at the receiver; selecting the measured signal arrival that is similar to the predicted direct arrival as a preliminary signal arrival; defining a confidence interval for the actual direct arrival of the signal based on the predicted direct arrival and the predicted reflected arrival; and finalizing the signal arrival, wherein the selected preliminary signal arrival is the finalized signal arrival if it is within the confidence interval. | 2009-10-29 |
20090268553 | ULTRASONIC SENSOR SYSTEM AND METHOD FOR SENSING DISTANCE - Methods and ultrasonic sensor systems are presented for sensing distance in which an acoustic output signal is directed toward a target and acoustic input signals are received from the direction of the target, and the received signal is compared with a selected one of a plurality of different receiver threshold curves to identify the acoustic wave travel time to the target and back while differentiating between the target and acoustic waves reflected more than once and waves reflecting off obstructions between the sensor and the target, where the user selectable receiver threshold curves are tailored for different target and/or obstruction conditions. | 2009-10-29 |
20090268554 | Underwater sound projector system and method of producing same - An underwater sound projector system comprises multiple sound projectors, each sound projector being capable of producing acoustic pressures. The sound projectors are held in close proximity such that the sound projectors interact with one another via the acoustic pressures produced. In embodiments, the number and/or spacing of the sound projectors are adjusted based on target performance parameters. | 2009-10-29 |
20090268555 | METHOD AND APPARATUS FOR IDENTIFYING NOISE SOURCES - A computer implemented method and apparatus for identifying component breakdown of noise sources. Noise data is received for a noise source from an array of sound sensors. Measurement points of interest, candidate sound source points along an axis, and array aperture angles are identified. Sets of first and second bounding traces are identified from ray traces extending from the candidate noise source points towards the measurement points of interest using the array aperture angles. The bounding ray traces are rotated around the axis to form sets of first and second surfaces. Sets of first and second curves are identified from an intersection of the sets of first and second surfaces with the ground plane. Sound sensors are selected from the array using the curves to form subarrays. The component breakdown of noise generated by the noise source is identified using noise data from sound sensors in the subarrays. | 2009-10-29 |
20090268556 | Thermoacoustic device - A sound wave generator that includes a carbon nanotube structure. The carbon nanotube structure produces sound by means of the thermoacoustic effect. | 2009-10-29 |
20090268557 | Method of causing the thermoacoustic effect - A method of producing sound waves. The method includes causing a carbon nanotube structure heat, and thus causing the thermoacoustic effect. | 2009-10-29 |
20090268558 | Thermoacoustic device - A sound wave generator includes one or more carbon nanotube wire structures. The one or more carbon nanotube wire structures produce sound by means of the thermoacoustic effect. | 2009-10-29 |
20090268559 | Thermoacoustic device - A sound wave generator includes a carbon nanotube structure. The carbon nanotube structure includes of one or more carbon nanotube films. Each carbon nanotube film includes a plurality of carbon nanotubes entangled with each other. The one or more carbon nanotube films produces sound by means of the thermoacoustic effect. | 2009-10-29 |
20090268560 | Thermoacoustic device - A sound wave generator includes a carbon nanotube film. The carbon nanotube film comprises a plurality of carbon nanotubes entangled with each other. At least part of the carbon nanotube film is supported by a supporting element. The carbon nanotube film produces sound by means of the thermoacoustic effect. | 2009-10-29 |
20090268561 | Thermoacoustic device - An apparatus includes a signal device, a power amplifier, and a sound wave generator. The power amplifier is electrically connected to the signal device. The power amplifier outputs an amplified electrical signal to the sound wave generator. The sound wave generator produces sound waves by a thermoacoustic effect. The amplified electrical signal is positive or negative. | 2009-10-29 |
20090268562 | Thermoacoustic device - A sound wave generator includes a carbon nanotube structure. The carbon nanotube structure includes one or more drawn carbon nanotube films. The one or more drawn carbon nanotube films produce sound by means of the thermoacoustic effect. | 2009-10-29 |
20090268563 | Acoustic System - An acoustic system includes a sound-electro converting device, a electro-wave converting device, and a sound wave generator. The electro-wave converting device is connected to the sound-electro converting device. The sound wave generator is spaced from the electro-wave converting device and includes a carbon nanotube structure. The sound-electro converting device converts a sound pressure to an electrical signal and transmits the electrical signal to the electro-wave converting device. The electro-wave converting device emits an electromagnetic signal corresponding to the electrical signal and transmits the electromagnetic signal to the carbon nanotube structure. The carbon nanotube structure converts the electromagnetic signal into heat, and the heat transfers to a medium causing a thermoacoustic effect. | 2009-10-29 |
20090268564 | Calendar Apparatus - A calendar apparatus includes a housing having opposed side rails for holding a calendar therebetween. The calendar apparatus includes a processor and a memory device in data communication with the processor. The apparatus includes a user input device, a microphone, and an audio output positioned in the housing and in data communication with the processor. The processor includes programming for inputting event data using the input device, inputting message data using the microphone, actuating the audio output device to provide alarm or to display message data after occurrence of an event. The calendar apparatus may include a picture holder, a clock, and a calculator. | 2009-10-29 |
20090268565 | Oblique Tourbillon - A tourbillon is provided that includes a platform rotatable about a platform axis. In one implementation, the platform carries an escapement including an escape-wheel and pallets, wherein the escape-wheel is rotatable about an escape-wheel staff, the pallets are rotatable about a pallet-staff, and the escape-wheel staff and the pallet-staff are disposed so as to be essentially parallel to the platform axis. The platform also carries a balance-wheel rotatable about a balance-staff, wherein the balance-staff is arranged at an angle of inclination ∝ with respect to the platform axis. | 2009-10-29 |
20090268566 | Instrument Display Board and Process for Producing Instrument Display Board - [Problem] An instrument display board is provided which does not need troublesome work for preparing plural plate members, can adopt a great variety of designs, can present a stereoscopic feeling and a high-class feeling, brings about unprecedented color tone variation, metallic texture, brilliancy in the light, etc., is very excellent in high-class feeling and design variation, has excellent appearance quality and therefore can enhance merchantability. A process for producing the instrument display board is provided. | 2009-10-29 |
20090268567 | Method and apparatus for employing stored content at receivers to improve efficiency of broadcast system bandwidth use - The invention relates generally to a receiver unit in a digital broadcast system for receiving a broadcast signal comprising content segments and control data, and generating an output signal using the content segments and previously stored content segments. The previously stored content segments are retrieved from a local memory device using the control data and inserted among the received content segments. | 2009-10-29 |
20090268568 | Portable data storage assembly having a holographic data storage layer and an optical tracking layer - A portable data storage assembly, comprising a holographic data storage layer, and an optical tracking layer comprising addressing information for the holographic data storage layer, wherein that addressing information defines a first storage band comprising a first plurality of storage addresses and a second storage band comprising a second plurality of storage addresses, wherein said second plurality of storage address is greater than said first plurality of storage addresses. | 2009-10-29 |
20090268569 | METHOD OF MECHANICAL SHOCK DETECTION AND METHOD AND APPARATUS FOR RECORDING DATA ONTO AN OPTICAL DISC - A method for detecting a mechanical shock affecting on optical disc drive based on using the Focus Error (FE) and/or the Tracking Error (TE) servo-loop signals. An shock detection signal is generated as weighted time-integral of the servo loop signal, for example by using the integral signal of the PID controller of the servo loop, or a low pass filter, or digital integration by a Digital Signal Processor (DSP). A shock is considered to be detected if the shock detection signal exceeds a threshold value. A method for recording data onto an optical disc and the corresponding optical disc drive are also disclosed. The shock signal is monitored real time and the recording is interrupted if a shock is detected. The recording is resumed by linking from the last recorded area when the shock signal becomes low again. | 2009-10-29 |
20090268570 | Apparatus and method for changing speed of recording on optical recording medium during recording operation - An apparatus for changing a recording speed of an optical recording medium by analyzing wobble signals in real time during a recording operation, includes a signal process unit which outputs a cyclic redundancy check (CRC) signal that checks for a generation of errors on the optical recording medium from absolute time in pregroove (ATIP) information output from the optical recording medium during the recording operation, and a speed control unit which changes the recording speed during the recording operation according to a comparison of the CRC signal output from the signal process unit with a reference value. In the apparatus, the recording speed is limited or lowered in response to a signal quality of a recording section being less than an acceptable level during the recording operation. Accordingly, buffer under run and defects of read-in start position and seek fail, which are generated during a ZCLV operation, are prevented. In addition, the apparatus detects errors in characteristics of wobble signals from low quality media, and changes the recording speed to improve the recording quality and readability of such discs after the recording operation. | 2009-10-29 |
20090268571 | Optical recording control method, optical recording control circuit, optical reproduction control method, optical reproduction control circuit, optical recording medium, tracking control method, tracking control circuit, optical recording method, optical recording apparatus, optical reproduction method, and optical reproduction apparatus - An object of the invention is to increase a transfer rate in data recording or data reproduction. A beam spot | 2009-10-29 |
20090268572 | RECORDABLE OPTICAL STORAGE SYSTEMS - A last optimum parameter value control method is disclosed, with a laser parameter value being adjusted in a predetermined sequence at an ADIP/ATIP frame of an optical recording medium. Jitter is measured at each ADIP/ATIP frame in order to obtain an average jitter value for that particular frame, and hence parameter value. | 2009-10-29 |
20090268573 | OPTICAL DISC RECORDER AND VIBRATION SENSITIVE CONTROL METHOD - According to one aspect, an optical recorder for recording data onto a disc includes a shock detector. The shock detector is used for determining whether the optical recorder is vibrated based on a servo error signal and generating a control signal. The control signal is used for interrupting recording data onto the disc when the optical recorder is vibrated. | 2009-10-29 |
20090268574 | OPTICAL DISC DRIVE AND METHOD OF CONTROLLING THE SAME - A method of controlling an optical disc drive to drive a multi-layer optical disc includes acquiring actual optimal aberration correction positions of a first layer and a second layer of the multi-layer optical disc while a position of an aberration correction unit is changed, positioning the aberration correction unit at an intermediate point between the aberration correction position of the first layer and the aberration correction position of the second layer, performing a layer jump from the first layer to the second layer of the optical disc, and positioning the aberration correction unit at the aberration correction position of the second layer. | 2009-10-29 |
20090268575 | Systems and Methods for Reducing Attenuation of Information Derived from a Defective Medium - Various embodiments of the present invention provide systems and methods for data regeneration. For example, a method for data regeneration is disclosed that includes receiving a data input derived from a medium, determining a media defect corresponding to the data input, and determining an attenuation factor associated with the defective medium. Based at least in part on the determination that the medium is defective, amplifying the data input by a derivative of the attenuation factor to regenerate the data. | 2009-10-29 |
20090268576 | METHOD OF HANDLING SERVO SECTOR DEFECT - A method of handling a servo sector defect includes recognizing a first servo sector using a controller; determining whether the first servo sector has a defect; and when the first servo sector has a defect assigning at least a part of a next data sector to be assigned to the first servo sector to a second servo sector having no defect. | 2009-10-29 |
20090268577 | Synchronization detecting method and synchronization detecting circuit - A synchronization detecting circuit detects a synchronous signal from a reproduced signal of a recording medium in which a random shift method is employed. A window generator in the synchronization detecting circuit generates a third window having as a central phase one predicted phase in a second predicted coordinate that is obtained by replicating a first predicted coordinate indicating a predicted phase of each synchronous signal that repeatedly appears in the reproduced signal and having a phase width equivalent to twice a random shift width when the synchronous signal is not detected using a first window after the synchronous signal is detected using a second window by a synchronization detector. | 2009-10-29 |
20090268578 | Optical Disk Processing Apparatus - An optical pickup is opposed to an inner-radius portion of an optical disc that is set, and pits (a modulation signal) are read by applying laser light for a DVD to the inner-radius portion. The read-out modulation signal is decoded by inputting it to a CD decoder. If decoded disc information includes particular verification data, the optical disc is judged to be a legitimate optical disc of a particular type and formation of a visible image on the label surface is permitted. | 2009-10-29 |
20090268579 | OPTICAL INFORMATION RECORDING MEDIUM AND METHOD OF RECORDING AND/OR REPRODUCING THEREIN - An optical information recording medium | 2009-10-29 |
20090268580 | MASTER RECORDING APPARATUS, MASTER RECORDING METHOD, MASTER FOR STAMPER CONTAINING HEAT-SENSITIVE RESIST MATERIAL, AND METHOD OF FORMING FILM OF HEAT-SENSITIVE - According to one embodiment, a pit having a shape wherein the shapes of the top of a recording mark (recording start position) and the end of the recording mark (recording end position) are symmetrical can be formed on a stamper master with high reproducibility. As a result, the noise level/jitter degree of the reproduction signal obtained by reproduction from an optical disc as a final product can be reduced, thereby manufacturing at low cost the optical disc from which a signal can be stably reproduced. | 2009-10-29 |
20090268581 | OPTICAL PICK-UP DEVICE - An optical pickup in which constituting components are arranged so that a dead space can be reduced and aberrations can also be reduced at a low manufacturing cost is provided. In an outward path for projecting a laser beam onto a recording surface | 2009-10-29 |
20090268582 | OPTICAL INFORMATION REPRODUCING APPARATUS AND METHOD THEREOF - An optical information reproducing apparatus includes a light-receiving unit that receives a first reproduction light of an information output from a first region of an information recording layer and a second reproduction light of an information output from a second region of the information recording layer, the first region and the second region being formed by dividing the information recording layer with a line segment that intersects a plane of incidence of the reference light and a plane of the information recording layer, and outputs a first reproduction signal that is a reproduction signal of the first region and a second reproduction signal that is a reproduction signal of the second region. | 2009-10-29 |
20090268583 | INFORMATION RECORDING DEVICE AND INFORMATION REPRODUCING DEVICE - An information recording/reproducing device includes a radiation light source | 2009-10-29 |
20090268584 | Optical Pickup Apparatus And Optical Disc Apparatus Using Same - An optical pickup apparatus is provided with a dividing element having a plurality of regions. The dividing element is capable of dividing a light flux reflected by the optical disc into a plurality of light fluxes having different outgoing directions. Each region of the dividing element and light receiving parts of a light detector are structured such that when a target information recording layer of the optical disc is brought into focus, a light flux reflected from the target information recording layer is focused on the light receiving parts of the light detector, and a light flux reflected from other information recording layer than the target information recording layer is not irradiated onto the light receiving parts of the light detector. | 2009-10-29 |
20090268585 | WAVELENGTH SELECTING WAVELENGTH PLATE AND OPTICAL HEAD DEVICE USING IT - An optical rotating plate has an optical rotating material layer. A phase plate is provided on a first surface side of the optical rotating plate and has at least one birefringent material layer. The first surface side is disposed toward an emitting side of an optical path, thereby giving different phase differences to a first linearly polarized light group containing at least a linearly polarized light having a first wavelength and a second linearly polarized light group containing at least a linearly polarized light having a second wavelength which is different from the first wavelength. | 2009-10-29 |
20090268586 | Objective Lens Unit and Optical Pickup Apparatus - An objective lens unit for use in an optical pickup device, includes: a first lens section; a first flange section positioned peripheral of the first lens section; and a support section which supports a second objective lens having a second lens section provided in parallel to the first lens section with an optical axis different from that of the first lens section, wherein the first lens section, the first flange section and the support section are integrally formed. | 2009-10-29 |
20090268587 | OPTICAL PICKUP - An optical pickup, having an optical pickup housing made of resin, for maintaining the heat radiation performance or capacity of a semiconductor laser, also an objective lens driving mechanism, and further a driver IC for the semiconductor laser, while keeping small-size and light-weight thereof, comprises a pickup housing, in which an optical part and a semiconductor laser are fixed; an objective lens, which is attached within the pickup housing; and an objective lens driving mechanism, which is configured to drive the objective lens, further comprising: a metal-made bottom cover, which is configured to cover a lower surface of the pickup housing and a side surface of an inner periphery of an optical disc, wherein the metal-made bottom cover and the semiconductor laser are thermally connected with each other. | 2009-10-29 |
20090268588 | OPTICAL HEAD, OPTICAL INFORMATION RECORDING AND REPRODUCING DEVICE, AND OPTICAL INFORMATION SYSTEM DEVICE - An object of the invention is to provide an optical element for use in an optical information recording and reproducing device or a like device for recording or reproducing information with respect to an information recording medium using laser light, wherein the optical element is a resin optical element capable of suppressing lowering in transmittance due to deterioration by irradiation of light having a high energy density, and maintaining a high transmittance for a long time. To realize the above object, used is an optical element made of a silicon resin cured material obtained by subjecting a silicon resin composition containing a silsesquioxane compound to a curing treatment. | 2009-10-29 |
20090268589 | INFORMATION RECORDING UNIT AND RECORDING CONDITION CALIBRATION METHOD - A method for calibrating a recording condition in an information recording unit includes: heating a recorded data pattern recorded on the information recording medium; reproducing the recorded data pattern after the heating, to measure a reproduced-signal quality; and determining a recording condition based on the measured reproduced-signal quality. | 2009-10-29 |
20090268590 | OPTICAL STORAGE MEDIUM, INFORMATION RECORDING APPARATUS, AND INFORMATION REPRODUCING APPARATUS - An optical storage medium can be provided by which illegal usage of the optical storage medium involving an infringement on the copyright can be prevented effectively without impairment of the functions for reproducing physical format information and optical storage medium manufacturing information. The optical storage medium includes a main information region in which encrypted data information is recorded as a pit row that is capable of being read out by means of light and a control data region. In the control data region, key information for decoding the encryption of the data information, the physical format information and the optical storage medium manufacturing information are recorded by wobbling a groove. | 2009-10-29 |
20090268591 | HIGH-FREQUENCY SUPERIMPOSING METHOD AND OPTICAL DISK APPARATUS USING IT - An optical disk drive includes drive current generation unit for supplying a mark forming semiconductor laser drive current and a space forming semiconductor laser drive current; first high-frequency superimposition unit for superimposing a high-frequency component on the space forming semiconductor laser drive current; and high-frequency superimposition control unit for controlling the first high-frequency superimposition unit to stop the superimposition of the high-frequency component for a predetermined duration prior to a timing at which to switch from the space forming semiconductor laser drive current to the mark forming semiconductor laser drive current, eliminating positional variations on the disk of the mark leading and trailing edges due to the high frequency superimposition. | 2009-10-29 |
20090268592 | Information recording medium, recording apparatus and recording method - A pre-recording region ( | 2009-10-29 |
20090268593 | Information recording medium, information recording apparatus and method, information reproducing apparatus and method, and computer program - An information recording medium ( | 2009-10-29 |
20090268594 | INFORMATION RECORDING MEDIUM, INFORMATION RECORDING DEVICE AND METHOD, AND COMPUTER PROGRAM - An information recording medium ( | 2009-10-29 |
20090268595 | INFORMATION RECORDING MEDIUM AND RECORDING/REPRODUCING APPARATUS - On an information recording medium, a first region where first recording regions that are long in a radial direction are disposed at a predetermined pitch with first non-recording regions in between is provided in a preamble pattern region. A second recording region that connects first recording regions that are adjacent in a direction of rotation is provided in the first region. A second non-recording region that is longer in the direction of rotation than a length in the direction of rotation of the first non-recording regions at corresponding same-pattern-radius positions is provided at a position where a read of servo data is carried out following the first region. | 2009-10-29 |
20090268596 | INFORMATION RECORDING MEDIUM, INFORMATION RECORDING APPARATUS AND METHOD, AND COMPUTER PROGRAM - An information recording medium ( | 2009-10-29 |
20090268597 | METHOD AND APPARATUS FOR RECORDING OPTICAL INFORMATION, AND OPTICAL DISK - A method of recording data optically to an optical disk having a plurality of sectors, in which each sector has a region to be recorded with data, the data is recorded in units of blocks, and the block includes a predetermined number of sectors and is a data unit including error correction codes. In recording data related to a content by dividing and recording the data in a plurality of sectors continuously, dummy data to be used for extracting a clock in phase lock loop (PLL) for data reproduction is recorded on a region adjacent before a sector from which data recording is started. The data related to the contents is recorded on sectors following the region recorded with the dummy data. | 2009-10-29 |
20090268598 | OPTICAL STORAGE MEDIUM, INFORMATION RECORDING APPARATUS, AND INFORMATION REPRODUCING APPARATUS - An optical storage medium can be provided by which illegal usage of the optical storage medium involving an infringement on the copyright can be prevented effectively without impairment of the functions for reproducing physical format information and optical storage medium manufacturing information. The optical storage medium includes a main information region in which encrypted data information is recorded as a pit row that is capable of being read out by means of light and a control data region. In the control data region, key information for decoding the encryption of the data information, the physical format information and the optical storage medium manufacturing information are recorded by wobbling a groove. | 2009-10-29 |
20090268599 | MAGNETIC RECORDING MEDIUM AND RECORDING AND REPRODUCING METHOD AND APPARATUS FOR THE SAME - Magnetic recording media conventionally require a time-consuming and cost-increasing task of recording servo pits on each individual disk. Disclosed are a magneto-optical recording medium and a recording and reproducing method for the magneto-optical recording medium. The magneto-optical recording medium has the structure in which at least a recording layer magnetized in a direction perpendicular to the plane is formed on a disk substrate, and allows a format signal to be formed thereon by changing the magnetization direction or the magnetic anisotropy of the recording layer or by oxidizing the recording layer to form pits. This structure significantly improves the disk productivity and reduces the disk cost and also enables the magnetic recording medium to have good characteristics including stable servo characteristics. | 2009-10-29 |
20090268600 | INFORMATION RECORDING MEDIUM IN WHICH PRE-PIT IS FORMED AND RECORDING/REPRODUCING APPARATUS AND METHOD - An information recording medium for enabling quick finalization and efficient data recording/reproducing, and a recording/reproducing apparatus and method are provided. The information storage medium includes a finalization area of which both of an in-groove pre-pit and a land pre-pit are formed in at least a part, while the information storage medium is manufactured. | 2009-10-29 |
20090268601 | METHOD AND APPARATUS FOR SPECTRUM MANAGEMENT - A method and apparatus for spectrum management in an xDSL system are disclosed. The method mainly include: determining a transmit PSD mask according to a crosstalk status of a line; performing IWF operation using the transmit PSD mask; and dynamically managing line spectrum according to the result of the IWF operation. Therefore, various embodiments of the present invention allow the DSLAM performance to approximate the OSM performance without the need for a center controller and with a rather simple algorithm in a severe crosstalk scenario. Moreover, the embodiments of the present invention may help to simply the design of DSLAM optimization system and achieve a proper balance between the DSLAM performance and the complexity. | 2009-10-29 |
20090268602 | METHOD OF GENERATING CODE SEQUENCE AND METHOD OF TRANSMITTING SIGNAL USING THE SAME - A method of generating a code sequence and method of adding additional information using the same are disclosed, by which a code sequence usable for a channel for synchronization is generated and by which a synchronization channel is established using the generated sequence. The present invention, in which the additional information is added to a cell common sequence for time synchronization and frequency synchronization, includes the steps of generating the sequence repeated in time domain as many as a specific count, masking the sequence using a code corresponding to the additional information to be added, and transmitting a signal including the masked sequence to a receiving end. | 2009-10-29 |
20090268603 | MULTIPLE STAGE FOURIER TRANSFORM APPARATUS, PROCESSES, AND ARTICLES OF MANUFACTURE - In embodiments, a fast Fourier transform (FFT) engine includes a series of stages, each stage containing a butterfly and a data normalization device configured to scale output of the stage's butterfly. The scaling factors are adjusted, for example, periodically or on as-needed basis, so that the dynamic range of the butterflies and the buffers is increased for a given bit-width, or the bit-width of these devices is decreased for the same dynamic range. Additionally, bit-width of other buffer(s) is decreased because of the scaling of the data. | 2009-10-29 |
20090268604 | APPARATUS AND METHOD FOR REDUCING PAPR OF PREAMBLE SIGNAL IN DIGITAL BROADCASTING SYSTEM - A method and apparatus for reducing a Peak to Average Power Ratio (PAPR) in a digital broadcasting system are provided. Reserved tones are determined, and the determined reserved tones are used to transmit a signal having an impulse characteristic in locations of sub-carriers that do not collide with a pilot signal of a preamble in a frame. The signal having the impulse characteristic is transmitted through the reserved tones in a symbol interval for which the preamble is transmitted. | 2009-10-29 |
20090268605 | Method and System for Network Backbone Analysis - A method and system of an embodiment may include receiving network path information identifying one or more network paths, receiving network traffic information specifying a network ingress and a network egress for the network traffic on a first network path of the one or more identified network paths and the network traffic information specifying one or more attributes of the network traffic, emulating failure of one or more components of the first network path, determining a second network path between the specified network ingress and the specified network egress to accommodate the network traffic from the first network path, and providing information associated with the second network path. | 2009-10-29 |
20090268606 | METHOD AND APPARATUS FOR DETECTING AND CORRECTING FAULTS IN A SESSION INITIATION PROTOCOL (SIP) NETWORK - Malfunctions in a communications network may introduce an unacceptably low level of reliability for many users, thereby slowing further adoption of Internet Protocol (IP) telephony, for example. In an example embodiment of the present invention, a method and corresponding apparatus for supporting a call in a presence of a fault in a network is provided. The method includes supporting a primary protocol to service a call between near-end and far-end access nodes associated with two or more callers. Signaling information in the primary protocol supporting the call may be identified and used to establish a backup protocol between the near-end and far-end access nodes. The primary protocol may be monitored for a fault and, in an event a fault occurs, supporting the call using the backup protocol. As a result, IP telephony may be transported in a more reliable manner, thereby reducing the number of dropped and uncompleted calls. | 2009-10-29 |
20090268607 | METHOD AND DEVICE FOR MULTICAST TRAFFIC REDUNDANCY PROTECTION - A method and apparatus of multicast traffic redundancy protection is provided. After a fault occurs, the VRRP selects a new active router and notifies the PIM routing protocol, and the PIM uses the new active router as its DR. | 2009-10-29 |
20090268608 | METHOD AND DEVICE FOR AUTOMATICALLY CONFIGURING A VIRTUAL SWITCHING SYSTEM - The invention relates to a plurality of common switching systems which are interconnected in order to form a virtual switching system. The number of the internal switching system is entered into the numbering of the port of the virtual switching system thus making a standardised user interface of the switching system become available. The port can be managed by a user in a traditional manner. The virtual switching system can be automatically configured due to said type of configuration when a central entity for developing the internal routing on the partial system is introduced, and then, optional geographical redundancy of the virtual switching system is possible. | 2009-10-29 |
20090268609 | EFFICIENT MANAGEMENT OF RING NETWORKS - In general, techniques are described for efficient management of ring networks with a system of two network devices. The first network device of the ring network is designated as an adjacent selective forwarding (ASF) device, and the second network device is designated as a master device. The master device monitors the ring network to determine whether a fault has occurred in the ring network and transmits via a secondary port of the master device a network status message to the ASF device based on the determination of whether the fault has occurred. The ASF device determines a status of the ring network based on the network status message and selectively forwards data traffic to the master network device based on the determination of the status. As a result, the master device more efficiently utilizes network resources by not consuming processor or memory resources to prevent traffic loops. | 2009-10-29 |
20090268610 | ETHERNET RING SYSTEM, TRANSIT NODE OF ETHERNET RING SYSTEM AND INITIALIZATION METHOD THEREOF - The present invention provides an Ethernet ring system, transit node of Ethernet ring system, and initialization method thereof, wherein the method includes the following steps: step 1, generating a transit node of Ethernet ring protection domain by means of ring nodes; step 2, detecting the link state of two ring ports by means of the transit node: if neither of the two ring ports is detected as in-fault, then recording ring the link state as initialization state, blocking at least one of the ring ports, setting the at least one blocked port in prerelease state, and sending a ring state query packet to a master node, by means of the transit node; step 3, when the ring state query packet is received, sending a ring state packet recorded by the master node to the ring port that receives the ring state query packet, by means of the master node; and step 4, checking whether the ring state packet sent by the master node have been received by the transit node of which the ring state is the initialization state; if so, unblocking the blocked port in the prerelease state, to realize initialization of the transit node. | 2009-10-29 |
20090268611 | METHOD AND SYSTEM FOR BANDWIDTH CONTROL ON A NETWORK INTERFACE CARD - A method for bandwidth control on a network interface card (NIC), the method that includes initiating a current time period, receiving a plurality of incoming packets for a receive ring, populating, by a NIC, the receive ring with the plurality of incoming packets according to a size of the receive ring during the current time period, wherein the size of the receive ring is based on an allocated bandwidth for the receive ring, and sending, by the NIC, the plurality of incoming packets to a host when a duration of the current time period elapses, wherein the duration is based on the allocated bandwidth for the receive ring. | 2009-10-29 |
20090268612 | Method and apparatus for a network queuing engine and congestion management gateway - A method, apparatus, and queuing engine implement congestion management. The method may include receiving, via a first interface of the apparatus, data traffic for forwarding to a node of a network. The method may also include receiving, at a second interface of the apparatus, a notification that indicates that congestion is affecting communication with the node, and responsive to the notification, accumulating the data traffic into the queue for a given time period. The method may further include dequeuing the data traffic from the queue after the given time period; and sending the portion of the data traffic to the node via the second interface. | 2009-10-29 |
20090268613 | METHOD AND SYSTEM FOR PROCESSING A DATA UNIT - A given data unit of a first protocol layer for transmission in a data unit based communication system is passed to a second protocol layer. A numeric value of a numerically quantifiable parameter associated with said given data unit of said first protocol layer is determined and the given data unit is embedded into one or more data units of the second protocol layer and transmission control for the one or more data units of the second protocol layer is performed in accordance with said numeric value of said numerically quantifiable parameter. | 2009-10-29 |
20090268614 | METHOD AND SYSTEM FOR CONGESTION MARKING - The present invention provides a method and system wherein congestion information is taken from a lower level in the protocol stack and used for congestion marking in a higher layer. In particular, the method and system of the invention from a first aspect provide for congestion information in the lower layer to be generated downstream at a congested node, and to be fed back upstream to a source node. The source node then passes the congestion information, or information derived therefrom, up to the corresponding network element responsible for higher layer functions in the protocol stack, where higher level congestion marking can then be performed in dependence on the received lower level congestion information. Thus, congestion information from the lower layer which can typically be generated earlier before significant congestion occurs can be used in higher layer congestion control functions. Preferably the lower layer is the data link layer, and the higher layer is the network layer. | 2009-10-29 |
20090268615 | Systems and methods for accessing voice transmissions - Various systems and methods for intercepting transmissions are disclosed. In one embodiment, a system is disclosed that includes a media gateway communicably coupled to a soft switch and an acquisition facility. A first processor and a first computer readable medium is associated with the soft switch. The computer readable medium includes instructions executable by the processor to receive a transmission originating from a first communicator and indicating at least a second communicator, and to direct the transmission to the acquisition facility via the media gateway. A second processor and second computer readable medium are included, and the second computer readable medium includes instructions executable by the second processor to direct the transmission from the media gateway to the second communicator such that direction of the transmission to an acquisition facility is obscured from at least the second communicator. Various other systems and methods are also disclosed. | 2009-10-29 |
20090268616 | MOBILE STATION, DOWNSTREAM TRANSMISSION RATE CONTROL METHOD, AND DOWNSTREAM TRANSMISSION RATE CONTROL PROGRAM - An aspect of the invention provides a mobile station which can restrict an upper limit of a transmission rate according to a processing capacity in processing packet data received from a base station. The mobile station includes packet data retaining means | 2009-10-29 |
20090268617 | Systems and methods for content type classification - A method for determining a type of content includes receiving a first packet, determining a state of classification for the first packet or for a session with which the first packet is associated, receiving a second packet, and determining a content type for the second packet based at least in part on the determined state. A method for determining a type of content includes receiving a packet associated with a session, determining whether a content type has been determined for the session or for an other packet associated with the session, and classifying the packet to be the content type based at least in part on a result from the act of determining. A method for determining a type of content includes receiving a first packet from a first port, the first port adapted for receiving at least two types of content, and determining a content type for the first packet or for a session with which the first packet is associated. A method for determining a type of content includes receiving a packet associated with a session, and determining a state of classification for the packet or the session. | 2009-10-29 |
20090268618 | Fault Isolation System and Method - A fault isolation system and method. A hierarchical numbering system is applied to devices within a subscriber network. The number system comprises a continuously concatenated string that provides a relative location of each active device with a subscriber network. The numbering system provides “genealogical” information about network devices and their location with the network and facilitates the correlation of non-responsive CPE data with faults in network devices. | 2009-10-29 |
20090268619 | SYSTEMS AND METHODS FOR A COGNITIVE RADIO HAVING ADAPTABLE CHARACTERISTICS - Systems and methods for configuring a network of radios for dynamic spectrum access are described. A network radio can include hardware and/or software modules for detecting a radio environment and negotiating common communications channels with a plurality of other radios in the network. Network radio behavior can be defined by a plurality of predefined policies which are used in combination with the information about the radio environment to select common operating parameters. | 2009-10-29 |
20090268620 | COMMUNICATION CONNECTING METHOD, COMMUNICATION CONNECTING DEVICE AND STORAGE MEDIUM WITH PROGRAM STORED THEREIN - A user is prompted to turn on power supply of a device to be connected with a screen. When it is detected that the power supply is turned on, the screen is displayed for confirming a user whether the device whose power supply is turned on should be connected or not. Thus, connection is carried out. With such a method, a communication connection method capable of selecting a device to be connected reliably is provided. | 2009-10-29 |
20090268621 | TRANSMITTING APPARATUS, RECEIVING APPARATUS AND MULTIPLEX NUMBER CONTROLLING METHOD - A spatial multiplex number controlling method and others wherein streams can be separated for each of receivers and the transmission efficiency can be improved. In a receiving apparatus, a PER is calculated from a history of CRC test results per stream multiplex number. A reception quality and an offset corresponding to the calculated PER are fed hack to a transmitting apparatus. The transmitting apparatus assigns, based on the fed-back reception quality and offset, the streams, thereby controlling the stream multiplex number. | 2009-10-29 |
20090268622 | Route Tracing Program Configured to Detect Particular Network Element Making Type of Service Modification - One or more network elements that modify type of service values in a network are detected by sending route tracing messages having increasing time-to-live values and a designated type of service value from a first network element to a second network element. Type of service values are monitored in respective time exceeded messages received from respective network elements on a given network path between the first network element and the second network element responsive to the route tracing messages. At least a particular one of the network elements on the given network path that has made a modification in type of service value relative to the designated type of service value is identified, based on the monitored type of service values in the respective time exceeded messages. | 2009-10-29 |
20090268623 | EFFICIENT PROBABILISTIC COUNTING SCHEME FOR STREAM-EXPRESSION CARDINALITIES - In one embodiment, a method of monitoring a network. The method includes, at each node of a fixed set, constructing a corresponding vector of M components based on data packets received at the node during a time period, M being an integer greater than 1, the fixed set being formed of some nodes of the network; and, based on the constructed vectors, estimating how many of the received data packets have been received by all of the nodes of the set or estimating how many flows of the received data packets have data packets that have passed through all of the nodes of the set. The constructing includes updating a component of the vector of one of the nodes in response to the one of the nodes receiving a data packet. The updating includes selecting the component for updating by hashing a property of the data packet received by the one of the nodes. | 2009-10-29 |
20090268624 | SYSTEMS AND METHODS FOR MEASUREMENT AND FEEDBACK OF CHANNEL QUALITY INDICATOR INFORMATION - User equipment may receive configuration information indicating whether the user equipment provides feedback of channel quality indicator (CQI) information in virtual resource block mode or physical resource block mode. If the configuration information indicates that the user equipment provides feedback in virtual resource block mode, the user equipment may calculate the CQI information for virtual resource blocks. The user equipment may feed back the CQI information for the virtual resource blocks to a Node B. | 2009-10-29 |
20090268625 | Communication Method and a Radio System - The network system of an orthogonal frequency division multiplexing radio system measures a quality of a signal from a user terminal. At least one compared property of the signal is compared with a predetermined threshold. The comparison includes a comparison involving the measured quality. A number of sub-channels for the user terminal is decreased if each comparison operation indicates that a compared property is at the predetermined threshold or within a predetermined range of the threshold. A control signal about a decrease is transmitted to the user terminal. The user terminal transmits with the decreased number of sub-channels as a response to the control signal. | 2009-10-29 |
20090268626 | SEMICONDUCTOR INTEGRATED CIRCUIT WITH TEST MODE - A semiconductor integrated circuit is provided which includes: A signal input terminals which include control input pads, A being an integer greater than or equal to 2; an internal circuit; a clock signal input terminal to which a clock signal is input; and an input signal control block which, in a test mode, separates time-division multiplexed data having a multiplicity of X, the time-division multiplexed data being input from A/X signal input terminals among the A signal input terminals, into individual data in accordance with the clock signal, and outputs the separated individual data to the internal circuit, X being an integer greater than or equal to 2. | 2009-10-29 |
20090268627 | METHOD FOR RING MANAGEMENT IN AN ETHERNET NETWORK COMPRISING A PLURALITY OF REDUNDANCY MANAGERS - Test packets (TP | 2009-10-29 |
20090268628 | Synchronous Circuit Synthesis Using An Asynchronous Specification - A method for specifying and synthesizing a synchronous digital circuit by first accepting a specification of an asynchronous system in which stored values are updated according to a set of state transition rules. For instance, the state transition rules are specified as a Term Rewriting System (TRS) in which each rule specifies a number of allowable state transitions, and includes a logical precondition on the stored values and a functional specification of the stored values after a state transition in terms of the stored values prior to the state transition. The specification of the asynchronous circuit is converted into a specification of a synchronous circuit in which a number of state transitions can occur during each clock period. The method includes identifying sets of state transitions, for example by identifying sets of TRS rules, that can occur during a single clocking period and forming the specification of the synchronous circuit to allow any of the state transitions in a single set to occur during any particular clocking period. | 2009-10-29 |
20090268629 | PACKET PROCESSING APPARATUS - A packet processing apparatus includes a packet buffer unit that temporarily holds packet data, a packet processing unit that processes packet data output from the packet buffer unit, a clock supply unit that supplies a clock signal to the packet processing unit, and a control unit that detects a buffer vacant time indicating a time during which no packet data exists in the packet buffer unit based on an accumulation amount of the packet data in the packet buffer unit, and controls an operational state of the clock supply unit in accordance with the buffer vacant time. | 2009-10-29 |
20090268630 | SIGNALING OF UNUSED RESOURCES - A user device on a wireless network includes a receiver, a noise detector and a noise determiner. The receiver receives downlink data communications from a base station that indicates an allocation of time/frequency resource blocks at least to user devices that are communicating with the base station. The noise detector measures noise in a time/frequency resource block, comprising plural time/frequency bins, that is not allocated to one of the user devices. The noise determiner determines a level of interfering noise based on noise in the resource block that is not allocated to one of the user devices. | 2009-10-29 |