661 results about "Single cycle" patented technology

A novel and useful range extension and in-band noise mitigation mechanism that uses conventional CRC error detection codes to correct single and multiple bit errors in packets received over a communications link. The CRC error correction mechanism of the invention is particularly suitable for use with communication protocols with weak error correction capabilities. The mechanism uses the linearity property of the CRC calculation to detect the existence of errors in the received packet. The entire received packet is searched for single bit errors and are corrected in a single cycle. If no single bit errors are found, the mechanism then searches for multiple bit errors. Packet retransmissions are used to detect and mark the location of multiple bit errors. Multiple bit errors are corrected by trying a plurality of hypotheses of single bit error corrections. Each hypotheses pattern is investigated to find matching CRC patterns for correction using the single bit, single cycle CRC error correction method.

A method for supporting a plurality of requests for access to a data cache memory (“cache”) is disclosed. The method comprises accessing a first set of requests to access the cache, wherein the cache comprises a plurality of blocks. Further, responsive to the first set of requests to access the cache, the method comprises accessing a tag memory that maintains a plurality of copies of tags for each entry in the cache and identifying tags that correspond to individual requests of the first set. The method also comprises performing arbitration in a same clock cycle as the accessing and identifying of tags, wherein the arbitration comprises: (a) identifying a second set of requests to access the cache from the first set, wherein the second set accesses a same block within the cache; and (b) selecting each request from the second set to receive data from the same block.

A branch prediction instruction is provided that includes hint information for indicating a storage location for associated branch prediction information in a hierarchy of branch prediction storage structures. When the hint information is in a first state, branch prediction information is stored in a first structure that provides single cycle access to the stored information. When the hint information is in a second state, the branch prediction information is stored in a second structure that provides slower access to the stored information.

An on-chip clock multiplier for outputting a fast clock that is approximately a predetermined multiple n of a slow clock. The multiplier utilizing a high-speed oscillator to generate a high-frequency base signal. A lower frequency signal is generated using the high-frequency base signal as a function of the output of a rollover counter that counts from a seed value to a terminal value. A saturation counter is used to determine whether no more than n pulses of the lower frequency signal occur within a single cycle of the slow clock. If not, the lower frequency signal is iteratively slowed by changing the seed value until no more than n pulses of the lower frequency signal occur within a single cycle of the slow clock. When this iteration is done, the fast clock having a frequency that is approximately n times the frequency of the slow clock is output.

A garbage collector, from time to time, and within a single cycle, determines objects that are eligible to have their associated memory freed; executes high-priority finalizers associated with such eligible objects as are determined; and after execution of a high-priority finalizer, deallocates the memory of the associated object. The garbage collector queues references to eligible objects that have non-high-priority finalizers in a list. After garbage collection is completed, a finalizer thread runs the queued non-high-priority finalizers and marks the associated objects as ready for deallocation. The garbage collector, during a subsequent cycle, then deallocates the memory associated with marked objects.

An estimation unit can estimate, on a real-time basis, a maximum power generation capacity of a single cycle or combined cycle gas turbine power plant. For example, the actual power output and the maximum power generation capacity can be calculated relying on a mathematical process model. Subsequently, the calculated actual power output can be compared with the measured power output yielding a model-estimation error. Based on the model-estimation error, a correction signal can be deduced, to correct the calculated maximum power generation capacity. A controller can maintain a specified power reserve. The controller can use an estimate of the maximum power generation capacity as a reference, subtract a load offset, and apply the resulting signal as upper limit of the load set-point.

A method of forming a layer on a micro-device workpiece includes dispensing a first pulse of a first precursor at a first region of the workpiece to flow toward a second region of the workpiece. The second region of the workpiece is located radially outward relative to the first region of the workpiece. The embodiment of this method further includes dispensing a first pulse of a purge gas at the first region of the workpiece to flow toward the second region of the workpiece after terminating the first pulse of the first precursor. Additionally, this embodiment also includes dispensing a second pulse of a first precursor at the second region of the workpiece to flow radially outward concurrently with dispensing the first pulse of a purge gas in the first region of the workpiece. The first pulse of the purge gas is terminated at the first region of the workpiece, and the second pulse of the first precursor is terminated at the second region. At this stage, the method further includes dispensing a first pulse of a second precursor at the first region of the workpiece to flow radially outward toward the second region, and dispensing a second pulse of the purge gas at the second region of the workpiece to flow radially outward concurrently with the first pulse of the second precursor in the first region. A single cycle of the process can further include dispensing a third pulse of the purge gas onto the first region of the workpiece to flow radially outward after terminating the first pulse of the second precursor, and concurrently dispensing a second pulse of the second precursor in the second region to flow radially outward.

An analog-to-digital converter (ADC) generates an output digital value equivalent to the difference between two analog signal values. The ADC 30 receives a first analog signal level, a second analog signal level and a ramp signal. A counter 32 is operable to count in a single direction. A control stage is arranged to enable the counter 32 based on a comparison 19 of the ramp signal with the first analog signal and the second analog signal. A digital value accumulated by the counter during a period when it is enabled forms the output. The ADC can perform the conversion during a single cycle of the ramp signal. The counter 32 can be loaded with a starting digital value representing an exposure level accumulated during a previous exposure period. Techniques are described for reducing the conversion time.

A system and method for accurately measuring a pulse run length in a high frequency (HF) data signal while utilizing a low analog-to-digital conversion (ADC) sampling rate. Four bits are added to the most significant end of an oscillator's accumulator register so that the oscillator generates a sawtooth clock waveform ranging in phase from zero (0) to 32pi radians. An interpolator detects a first zero-crossing transition of the HF data signal at the leading edge of the pulse run length, and a phase detector measures a first phase increment at that time. The MSBs of the accumulator register is then initialized to place the measured first phase increment in a range between zero (0) and 2pi radians. The accumulator register then accumulates phase increments until the interpolator detects a second zero-crossing transition of the HF data signal at the trailing edge of the pulse run length, and the phase detector measures a second phase increment when the second zero-crossing transition is detected. An accumulated phase difference is calculated by subtracting the initialized first phase increment from the measured second phase increment. The pulse run length is then obtained by dividing the accumulated phase difference by 2pi.

An operation information output device includes: a power data acquirer that acquires time-series data of a physical quantity consumed or generated when production equipment executes a process; a single-cycle detector that detects time-series data of predetermined duration from the time-series data acquired by the power data acquirer, and an operation information acquirer that acquires operation information of the production equipment by use of the time-series data detected by the single-cycle detector, hence it becomes possible to easily calculate and determine detailed operation information.

Dynamic reformatting of a dispatch group by selective activation of inactive Start bits of instructions within the dispatch group at the time the instructions are read from the IBUF. The number of instructions in the reformatted dispatch groups can vary from as few as one instruction per group to a maximum number of instructions read from the IBUF per cycle. The reformatted dispatch groupings can be terminated after a single cycle, or they can remain reformatted for as many cycles as desired, depending upon need.

The invention discloses an electrocardiosignal data processing method. The electrocardiosignal data processing method comprises the following steps of (1) collecting data of electrocardiosignals; (2) carrying out preprocessing on the collected data of the electrocardiosignals, wherein baseline drift removal processing and de-noising processing are carried out on the collected electrocardiosignals; (3) decomposing the electrocardiosignals into single-cycle electrocardiosignal sets; (4) carrying out characteristic extraction, carrying out signal classification according to single-cycle electrocardiosignals after normalization and the level of similarity of curve signals, and choosing electrocardiosignals in the maximum class as a template; (5) detecting signal input, carrying out similarity comparison between the electrocardiosignals and a central database template to determine the identity. According to the single-leading electrocardiosignal data processing method, the mode of characteristic curve matching is adopted to carry out curve similarity comparative studies on electrocardiosignal sequences, and complex procedures for extracting characteristic points are avoided.

A software based digital wavetable synthesizer receives musical data from an external source and generates a plurality of digital sample values corresponding to the musical source. The musical source may be a synthesized music source or an actual instrument. In an exemplary embodiment, a sample for each semi-tone for the musical instrument is sampled and stored. A subsequent process analyzes the sampled and selects a single cycle representing that musical instrument at each of the semi-tones. The data is subsequently normalized such that each cycle begins with a zero value and the normalized data is stored in a data structure along with labels indicative of the musical instrument and the musical note. In subsequent use, the user can create synthesized music by selecting the desired instrument and notes. Additional musical rules, such as rules associated with Indian classical music, may be applied to specify the synthesis process. The musical notes, generated in accordance with the associated musical rules are provided to a music output file, which may be converted into a conventional waveform format and played on a conventional sound card. The invention is totally software based and does not rely on synthesized data stored in firmware or hardware on a special musical synthesizer card. Instead, any conventional sound card may be readily used thus allowing portability of the music synthesizer between computing platforms.

A multi-port DRAM having refresh cycles interleaved with normal read and write operations implements a single cycle refresh sequence by deferring the write portion of the sequence until the next refresh cycle. During a single clock cycle, the system writes stored data from a refresh buffer into a row in the memory array and then reads data from one row of the memory array into the buffer.

A hardware implementation of a crypto-function is realized using combinational logic performing computation iterations of the crypto-function on data in a single hardware cycle. Only combinational logic is used to implement the entire cryptographic algorithm, and registers are used only to store input or output from the combinational logic, leading to a very high speed implementation of the crypto-function.

A method is provided for compressing a gas in a single cycle and in a single cylinder to a pressure of at least 17.2 Mpa with a compression ratio of at least about five to one. The method further comprises dissipating heat from the cylinder during the compression stroke whereby the gas is discharged with a temperature significantly less than isentropic. The apparatus comprises a hollow cylinder and a reciprocable free-floating piston disposed therein. The piston divides the cylinder into: (a) a compression chamber within which a gas can be introduced, compressed, and discharged; and, (b) a drive chamber, into which a hydraulic fluid can be introduced and removed for actuating the piston. The apparatus further comprises a piston stroke length to piston diameter ratio of at least seven to one. For operating the apparatus with a compression ratio of at least five to one, an outlet pressure of at least 17.2 Mpa, and a gas discharge temperature significantly less than isentropic, the apparatus can further comprise a variable displacement hydraulic pump for controlling piston velocity, an electronic controller for maintaining an average piston velocity that is less than 0.5 feet per second, and a heat dissipator for dissipating heat from the cylinder.

The invention provides a service life prediction method of a power battery in a time-varying working condition. The service life prediction method includes the steps that based on an actual working condition of the power battery for a vehicle, three main factors, T, C and DOD, which affect the service life of the power battery are taken as variables, combined with the time-varying characteristicsof affecting factors in a vehicle working condition, firstly, a service life prediction model of the power battery in a time-varying current condition is established in the time scale of a single cycle; in the time scale of multiple cycles, the effects of an operating temperature and a discharge depth DOD on battery service life are considered, and finally, a life model of the power battery in thetime-varying working condition which is closer to the actual working condition is obtained. According to the service life prediction method of the power battery in the time-varying working condition,the accuracy of the service life prediction of the power battery for the vehicle is improved, the battery service life is calculated by the model so that the use, maintenance and replacement of the power battery for the vehicle can be guided, and the safe use of electric vehicles is ensured; and furthermore, the model is simple and easy to calculate, and is beneficial to improving the predictionefficiency.

A circuit includes a memory having error correction, circuitry which initiates a write operation to memory. When error correction is enabled and the write operation to the memory has the width of N bits, the write operation to the memory is performed in one access to the memory, and when error correction is enabled and the write operation to the memory has the width of M bits, where M bits is less than N bits, the write operation to the memory is performed in more than one access to the memory. In one example, the one access to the memory includes a write access to the memory, and the more than one access to the memory includes a read access to the memory and a write access to the memory.

A system for digital signal processing, configured as a system on chip (SoC), combines a microprocessor core and digital signal processor (DSP) core with floating-point data processing capability. The DSP core can perform operations on floating-point data in a complex domain and is capable of producing real and imaginary arithmetic results simultaneously. This capability allows a single-cycle execution of, for example, FFT butterflies, complex domain simultaneous addition and subtraction, complex multiply accumulate (MULACC), and real domain dual multiply-accumulators (MACs). The SoC may be programmed entirely from a microprocessor programming interface, using calls from a DSP library to execute DSP functions. The cores may also be programmed separately. Capability for programming and simulating the entire SoC are provided by a separate programming environment. The SoC may have heterogeneous processing cores in which either processing core may act as master or slave, or both cores may operate simultaneously and independently.