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119 results about "Shift sequence" patented technology
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Method of transmitting control signal in wireless communication system
ActiveUS20090290538A1Guaranteed normal transmissionImprove system performanceError prevention/detection by using return channelFrequency-division multiplex detailsCommunications systemResource block
A method of transmitting a control signal in a wireless communication system is provided. The method includes acquiring a resource index, the number of cyclic shifts (CSs) and a CS interval, wherein the number of CSs is an integer multiple of the CS interval, determining a CS index based on the number of CSs and the CS interval, generating a cyclically shifted sequence by cyclically shifting a base sequence by a CS amount obtained from the CS index, generating a modulated sequence based on the cyclically shifted sequence and a symbol for a control signal and transmitting the modulated sequence after mapping the modulated sequence to a resource block obtained from the resource index.
Owner:LG ELECTRONICS INC
Hydraulically-operated bicycle shifting system with positive pressure actuation
InactiveUS6012999ACompact designIncreased durabilityChain/belt transmissionGearingAutomatic controlPositive pressure
A family of new bicycle shifting systems incorporate improved derailleur designs that are controlled by sealed hydraulic actuators. The shifting systems (i) a hydraulically-actuated, manually-powered front and rear derailleur shifting system, (ii) a hydraulically-actuated, power-assisted front and rear derailleur shifting system with manual control, and (iii) a hydraulically-actuated, power-assisted front and rear derailleur shifting system in which the shifting sequence for the rear derailleur is controlled automatically by pedal speed. Each of these shifting systems utilize a totally sealed, inclined linear shifting path. Environmental contaminants are prevented from entering any of the critical derailleur or control elements. The linear, inclined shifting path provides precise chain shifting, more uniform chain wrap on the rear bicycle drive sprockets, and lower chain and sprocket wear. Several different shifting control units are disclosed.
Owner:PATTERSON RICHARD A
Method and apparatus for transmitting and receiving control information to randomize inter-cell interference in a mobile communication system
ActiveUS20080212555A1Reduce Inter-Cell InterferenceEfficient receptionNetwork traffic/resource managementTransmission path divisionTelecommunicationsControl channel
A method and apparatus for transmitting and receiving control information in an SC-FDMA system are provided, in which different cyclic shift values are generated for different SC-FDMA symbols in one of a slot and a subframe, a sequence allocated for CDM of control information is cyclically shifted by the cyclic shift values, and a control channel signal including the control information is combined with the cyclically shifted sequences on an SC-FDMA symbol basis and transmitted in the SC-FDMA symbols.
Owner:SAMSUNG ELECTRONICS CO LTD
Method for the operation of a multiple clutching device and a power shift transmission
InactiveUS6881171B2Goal is achievedReduce loadFluid actuated clutchesToothed gearingsShift sequenceControl theory
In either a pull-mode operating state or a push-mode operating state, a clutch arrangement assigned to the first gearbox input shaft and a clutch arrangement assigned to the second gearbox input shaft are actuated in such a way and a torque-generating arrangement comprising a drive unit is controlled in such a way that, when a shift is to be made between a first gear assigned to a first gearbox input shaft and a second gear assigned to a second gearbox input shaft, at least one of the following criteria with respect to the shifting sequence comprising the shift in question is fulfilled:(1) during the shifting sequence, the torque present at the gearbox output shaft is at least approximately constant or changes monotonically;(2) during the shifting sequence, the vehicle accelerates in an essentially monotonically increasing or in an essentially monotonically decreasing manner.
Owner:ZF SACHS AG
Method for the operation of a multiple clutching device and a power shift transmission
InactiveUS20040038776A1Goal is achievedReduce loadFluid actuated clutchesGas pressure propulsion mountingEngineeringShift sequence
In either a pull-mode operating state or a push-mode operating state, a clutch arrangement assigned to the first gearbox input shaft and a clutch arrangement assigned to the second gearbox input shaft are actuated in such a way and a torque-generating arrangement comprising a drive unit is controlled in such a way that, when a shift is to be made between a first gear assigned to a first gearbox input shaft and a second gear assigned to a second gearbox input shaft, at least one of the following criteria with respect to the shifting sequence comprising the shift in question is fulfilled: (1) during the shifting sequence, the torque present at the gearbox output shaft is at least approximately constant or changes monotonically; (2) during the shifting sequence, the vehicle accelerates in an essentially monotonically increasing or in an essentially monotonically decreasing manner.
Owner:ZF SACHS AG
Method and apparatus for complexity reduction in detection of delay and doppler shifted signature sequences
InactiveUS20080170602A1Easy to detectComputationally efficientAmplitude-modulated carrier systemsAmplitude demodulationWireless transmissionRound complexity
A signature sequence is employed in a wireless transmission over a channel and is detected by a receiving station. The signature sequence is selected from a subset of sequences chosen from a set of sequences formed by delay-Doppler shifts of a base sequence. Use of the subset of sequences simplifies detection of the signature sequence by, e.g., facilitating use of a simpler detector structure. A subset of N2 sequences of the specially-constructed delay-Doppler shifted sequence set is selected to facilitate more efficient computation of the detection metric. A simplified detector employs algebraic techniques (such as Discrete Fourier 'Transform (DFT)) that exploit prudent sequence assignment strategy. As an advantageous variation, for a particular class of base sequences that can be represented by segments of equal-length sinusoids, even greater complexity reduction can be achieved by segmenting the delay-Doppler correlation accordingly and reusing past outcome in subsequent overlapping segments.
Owner:TELEFON AB LM ERICSSON (PUBL)
Apparatus and method for transmitting/receiving preamble signal in a wireless communication system
InactiveUS20060274843A1Reduce the amount of calculationAmplitude-modulated carrier systemsMultiplex code generationCommunications systemEngineering
An apparatus and method for transmitting / receiving a multi-functional preamble signal in a wireless communication system are provided. In an apparatus for transmitting a preamble signal in a wireless communication system, a first generator generates a predetermined ZAC sequence. A circular shifter circular-shifts the ZAC sequence according to a BS ID. A second generator generates a sequence in which samples of the ZAC sequence alternate with samples of the circular-shifted sequence. A repeater generates a baseband preamble signal by repeating the sequence received from the second generator.
Owner:SAMSUNG ELECTRONICS CO LTD
Scalable self-routing superconductor switch
A crossbar switch includes a cross-point matrix with n input rows of cross-points and m output columns of cross-points. The crossbar switch further includes n decoders connected to the n input rows. Each of the n rows includes a single serial address input, a shift input and a data input. A serial address and data enter the address input and the data input in parallel. A shift sequence is transmitted on the single shift input. The data flows before the shift sequence on the shift input is complete. The data is shifted through the crossbar switch using a clock that is generated on-chip using a clock recovery circuit. The decoder converts a binary address input into a serial address and includes an N-bit counter with a plurality of toggle flip-flops. The crossbar switch is implemented using superconductor digital electronics such as rapid single flux quantum (RSFQ) logic.
Owner:NORTHROP GRUMAN CORP
Hydraulically-operated bicycle shifting system with power shifting
InactiveUS6325733B1Compact designIncreased durabilityChain/belt transmissionGearingAutomatic controlComputer module
A family of new bicycle shifting systems incorporate improved derailleur designs that are controlled by sealed hydraulic actuators. The shifting systems (i) a hydraulically-actuated, manually-powered front and rear derailleur shifting system, (ii) a hydraulically-actuated, power-assisted front and rear derailleur shifting system with manual control, and (iii) a hydraulically-actuated, power-assisted front and rear derailleur shifting system in which the shifting sequence for the rear derailleur is controlled automatically by pedal speed. Each of these shifting systems utilize a totally sealed, inclined linear shifting path. Environmental contaminants are prevented from entering any of the critical derailleur or control elements. The linear, inclined shifting path provides precise chain shifting, more uniform chain wrap on the rear bicycle drive sprockets, and lower chain and sprocket wear. Several different shifting control units are disclosed. An integrated shifting and braking module is also disclosed.
Owner:PATTERSON RICHARD A +1
Hydraulic Control Module for Vehicle Transmission and Diagnostic Detection Method for the Same
ActiveUS20090253552A1Easy to detectClearly definedHybrid vehiclesClutchesClutch controlState of health
The present invention provides advanced hardware diagnostic detection for the clutch control components in a hydraulic control module of a multi-mode hybrid transmission. The detection scheme of the present invention utilizes pressure switch sensors to detect the position of each of the valves associated with the clutch control mechanization. The mechanization of these sensors with the valves provides the ability to clearly define the position of each of the valves, while also enabling the transmission electro-hydraulic control module (TEHCM) to diagnose the state of health of each pressure switch. This will allow the diagnostics to differentiate between a failed switch and a failed (e.g., “stuck” or “out of position”) valve. The present invention offers the ability to safely diagnose the clutch control components in a power transmission, while preventing unexpected and undesired shift sequencing within the transmission.
Owner:GM GLOBAL TECH OPERATIONS LLC
Time domain OFDM synchronization symbol generation and demodulation method, and data frame transmission method
ActiveCN103532899AReduce complexityImprove performanceMulti-frequency code systemsTime domainShift sequence
Provided is a time domain OFDM synchronization symbol generation and demodulation method, and a data frame transmission method. The time domain OFDM synchronization symbol generation method comprises that a CAZAC sequence and a shifting sequence are generated; a frequency domain OFDM synchronization symbol is formed based on the CAZAC sequence and the shifting sequence of the CAZAC sequence; fourier inverse transformation is performed on the frequency domain OFDM synchronization symbol so that a time domain OFDM synchronization training symbol is formed; the time domain OFDM synchronization training symbol is divided into a first part symbol and a second part symbol, and the two part symbols are respectively multiplied by a fixed frequency deviation so that a prefix and a suffix of a time domain OFDM synchronization symbol are formed; and the time domain OFDM synchronization symbol is formed based on the prefix of the time domain OFDM synchronization symbol, the OFDM synchronization training symbol and the suffix of the time domain OFDM synchronization symbol. Complexity of OFDM symbol generation is reduced by the technical scheme, demodulation complexity is reduced and demodulation parameter performance is enhanced.
Owner:SHANGHAI NAT ENG RES CENT OF DIGITAL TELEVISION +1
Method of transmittingg control informatioon wireless
ActiveUS20100142475A1Reduce mutual interferenceImprove system performanceModulated-carrier systemsTransmission path divisionWireless transmissionShift sequence
A method of transmitting control information includes generating a cyclically shifted sequence by cyclically shifting a base sequence by a cyclic shift amount, generating a modulated sequence based on a modulation symbol for control information and the cyclically shifted sequence, and transmitting the modulated sequence on a plurality of subcarriers, wherein available cyclic shifts of the base sequence are divided into a first part and a second part according to a type of the control information, and the first part and the second part are separated by at least one unallocated cyclic shift of the base sequence.
Owner:LG ELECTRONICS INC
Hydraulically-operated bicycle shifting and braking systems
InactiveUS6042495ACompact designIncreased durabilityChain/belt transmissionGearingAutomatic controlComputer module
A family of new bicycle shifting systems incorporate improved derailleur designs that are controlled by sealed hydraulic actuators. The shifting systems (i) a hydraulically-actuated, manually-powered front and rear derailleur shifting system, (ii) a hydraulically-actuated, power-assisted front and rear derailleur shifting system with manual control, and (iii) a hydraulically-actuated, power-assisted front and rear derailleur shifting system in which the shifting sequence for the rear derailleur is controlled automatically by pedal speed. Each of these shifting systems utilize a totally sealed, inclined linear shifting path. Environmental contaminants are prevented from entering any of the critical derailleur or control elements. The linear, inclined shifting path provides precise chain shifting, more uniform chain wrap on the rear bicycle drive sprockets, and lower chain and sprocket wear. Several different shifting control units are disclosed. An integrated shifting and braking module is also disclosed.
Owner:PATTERSON RICHARD A +1
Method of transmitting control signal in wireless communication system
ActiveUS8259602B2Guaranteed normal transmissionImprove system performanceError prevention/detection by using return channelFrequency-division multiplex detailsCommunications systemControl signal
Owner:LG ELECTRONICS INC
Methods, Apparatuses and Computer Program Products
There is provided an apparatus including a processor configured to apply space-code block coding to control symbols to be transmitted from at least two transmit antennas; a processor configured to map the space-code block coded control symbols on at least two different physical uplink control channels or cyclic shifts of the same base sequence; and a transmitter configured to transmit the cyclically shifted sequences modulated by the space-code block coded control symbols simultaneously from the at least two transmit antennas.
Owner:NOKIA SOLUTIONS & NETWORKS OY
Treatment method for reversibly watermarking vector map based on spatial characters
InactiveCN101604440AAvoid harmPreserve shape featuresImage data processing detailsPractical algorithmOmega
The invention provides a treatment method for reversibly watermarking a vector map based on spatial characters. The method comprises the following steps of: according to a Douglas-Puck method, extracting a characteristic point of a vector map element; according to a seed secret key, generating a random number sequence bi which has a maximal value not exceeding Smax and is used as a shifting sequence of an included angle of the characteristic point; carrying out nonlinear encryption treatment on the characteristic point extracted by each polygonal curve; carrying out Arnold scrambling operation on watermarking information and marking a watermarking sequence subjected to Arnold scrambling as omega j which belongs to {0,1}; reversibly embedding watermark; extracting the watermark and resorting original coordinate data; and after the watermark is extracted, carrying out nonlinear nondestructive restoration on the vector map containing linear encryption on the basis of the nondestructive restoration of a carrier characteristic point coordinate. An experimental result shows that the watermarking proposal is strict and reversible, has good shielding performance and is a safely-encrypted and source-tracked practical algorithm for a confidential vector map.
Owner:HARBIN ENG UNIV
Automatic driving system of locomotive
ActiveCN107977000AFusion wellMinor changesPosition/course control in two dimensionsVehiclesEngineeringMonitoring and control
The present invention relates to an automatic driving system of locomotive. A signal information collection module is configured to collect locomotive information required by automatic driving of thelocomotive, transmit the locomotive information to a train ATO system and send the locomotive information through a man-machine interaction module to a train driver for monitoring and control; the train ATO system is configured to calculate and obtain an optimal console shift sequence of the locomotive control according to the locomotive information sent by the signal information collection module, send the locomotive control and console instruction sequence to the man-machine interaction module, and the man-machine interaction module notifies the train driver of manual / automatic operation forsafe switching according to the locomotive control instruction sequence; and the train ATO system is configured to receive the train driver's instruction through the man-machine interaction module and perform setting of a manual / automatic switch according to the instruction. The train ATO system has good fusion with a current vehicle system to obtain the optimal locomotive control and console sequence and achieve automatic driving of the locomotive according to the locomotive control and console sequence.
Owner:TSINGHUA UNIV
Mitigation of Interference Between Wireless Networks
ActiveUS20100195603A1Minimize and prevent inter-network interferenceSure easyAssess restrictionRadio transmissionWireless mesh networkStart time
A system and method for minimizing or preventing interference between wireless networks is disclosed. A network hub broadcasts a beacon signal within repeating beacon periods. The position of the beacon signal shifts within each beacon period based upon a predetermined pseudo-random sequence. The beacon signal includes data identifying the current beacon shift sequence and the current phase of the sequence. Neighboring hubs independently or jointly determine and broadcast their own beacon shift sequences and phases for their respective networks from a predetermined list. Nodes connected with the network hubs are assigned allocation intervals having a start time that is set relative to the beacon signal. The start time and duration of the allocation interval wraps around the beacon period if the allocation-interval would otherwise start or continue in a next beacon period.
Owner:TEXAS INSTR INC
Method for operating a multi-clutch transmission
ActiveUS20130172147A1Better travelling comfortClutch wear is reducedGearing controlEngine controllersInternal combustion engineShift sequence
A method and device for operating a dual clutch transmission connectable to an internal combustion engine provided in a vehicle includes providing a control unit for managing at least the internal combustion engine and the transmission, providing a prediction model including at least one simulated shift sequence for the transmission, predicting the time between a first power upshift / downshift and a second power upshift / downshift for the transmission by using the at least one prediction model, modifying at least one parameter for operating the transmission if the predicted time between the first power upshift / downshift and the second power upshift / downshift for the transmission is shorter than a predetermined time.
Owner:VOLVO LASTVAGNAR AB
Method and equipment for controlling shifting of power supply gears
InactiveCN101973236ARealize automatic switchingImprove experienceElectric/fluid circuitShift sequenceWork status
The invention discloses a method and equipment for controlling the shifting of power supply gears and belongs to the field of automobiles. The method comprises the following steps of: presetting two or more than two power supply gears; and acquiring the working status information of a vehicle, and shifting a power supply system of the vehicle between the power supply gears according to the working status information of the vehicle. The equipment comprises a presetting module and a shifting module. In the invention, the power supply system of the vehicle, according to the working status information and preset conditions of the vehicle, is controlled to be shifted between the power supply gears in various modes by presetting the power supply gears; automatic shifting between the power supply gears can be realized under various conditions, so the shifting mode is more flexible; meanwhile, a user of the vehicle does not have to remember the shifting sequence of the power supply gears, so that the user experience of the user of the vehicle is improved.
Owner:CHERY AUTOMOBILE CO LTD
Method for realizing multiuser multiple-input multiple-output (MIMO) in time division duplex (TDD) system and equipment thereof
ActiveCN101668338AEliminate distractionsSpatial transmit diversityWireless communicationData streamTime-division multiplexing
The invention discloses a method for realizing multiuser multiple-input multiple-output (MIMO) in a time division duplex (TDD) system and equipment thereof. The method comprises the steps: a base station Node B divides n users in a subdistrict into one group; the Node B informs the information of time slot code channel resource, modulation mode and transmission block size to n UEs in the group byHS-SCCH; the n UEs in the group repeatedly use the same time slot code channel resource; the Node B shapes on corresponding time slot code channels of n HS-PDSCHs by wave beam and transmits n servicedata streams; at the corresponding time slot code channel position of the HS-PDSCHs, the each UE in the group receives corresponding service data stream, estimates the channel with a midamble shift sequence corresponding to the code channels, demodulates the received service data and removes interference by a channel estimating result, and feeds back corresponding information to the Node B by an uplink feedback channel HS-SIC. The technical scheme of the method provides a solution for inducing a MU-MIMO technology into a 1.8 Mcps TDD system.
Owner:北京万海云科技有限公司
Shift sequencing systems for a dual clutch transmission
A dual-clutch transmission (DCT) shift sequencing system includes a shift type module that determines a shift type based on a scheduled gear and a current attained gear of a DCT. A shift sequence module determines a sequence index based on the shift type. A sequencing module generates a fork command signal and a clutch command signal based on a first sequencing table corresponding to the sequence index. A shift abort module may be included to terminate an ongoing shift and to transition to an updated shift. A fork control module controls fork shifting in the DCT based on the fork command signal. A clutch control module controls clutch engagement in the DCT based on the clutch command signal.
Owner:GM GLOBAL TECH OPERATIONS LLC
Communications device and related method that detects symbol timing
ActiveUS8059767B2Frequency/rate-modulated pulse demodulationDuration/width modulated pulse demodulationModem devicePhase shifted
A communications device includes a signal input for receiving signals such as a binary phase shift keyed (BPSK) communications signal having a repeated preamble bit or symbol pattern. A modem processes the communications signal and includes a demodulator and processor that generates an initial frequency offset estimate and phase error estimate by processing such as with a Fast Fourier Transform (FFT), that detects the repeated preamble pattern for a block of samples within the communications signal, correlates two halves of the block of samples with a plurality of different shifted sequences and determines a maximum correlation value for the shifted sequence that provides the maximum correlation value to establish a symbol timing estimate based on the known timing alignment of this shifted sequence. Radio circuitry is operative with the modem for processing communications data obtained from the communications signal.
Owner:HARRIS GLOBAL COMM INC
Multiple-ratio dual clutch vehicle transmission
Owner:EATON CUMMINS AUTOMATED TRANSMISSION TECH LLC
Multiple-ratio dual clutch vehicle transmission
InactiveUS20080184846A1Lower ratioRaise the ratioToothed gearingsTransmission elementsPower flowGear drive
Owner:EATON CUMMINS AUTOMATED TRANSMISSION TECH LLC
Hybrid drive unit, and method of controlling a gear shift sequence in a manual shift transmission of a hybrid drive unit
A hybrid drive unit comprising an internal combustion engine; a manual transmission; a manual clutch that can be engaged and disengaged, connected to the internal combustion engine and to a first input shaft of the transmission; at least one electric motor, connected to a second input shaft of the transmission and driveable from a chargeable electrical voltage source; and an electronic control unit connected to the electric motor. When manually upshifting and downshifting the transmission the electronic control unit is designed, without the use of a clutch between the electric motor and the transmission, to instantaneously make the second input shaft essentially torque-free by controlling the electric motor to brake and accelerate the second input shaft to a rotational speed suited to a higher and a lower, respectively, gear prior to active engagement of the relevant gear.
Owner:GM GLOBAL TECH OPERATIONS LLC
Marine propulsion shift control
ActiveUS7377827B1Reduce wearAvoids engine stallPropulsion power plantsOutboard propulsion unitsMarine propulsionActuator
A marine propulsion system that utilizes a transmission shift sequence to control shifting of the propulsion system transmission between forward and reverse gears. The marine propulsion system includes a controller that executes the transmission shift sequence using engine speed and transmission fluid pressure signals to determine the timing of various steps in the shift sequence. The controller is connected to a shift actuator for the transmission and to an engine speed throttle to thereby control transmission shifting and engine speed as a part of the transmission shift sequence. By monitoring engine speed and transmission fluid pressure, and by controlling transmission shifting and engine speed settings, the transmission shift sequence can provide the operator with the ability to carry out quick shifts that will neither stall the engine nor damage the transmission clutch.
Owner:STURDY TRUCK EQUIP
Gas water heater and method for adjusting hot water temperature of gas water heater
ActiveCN106642729AEnhance bathing experienceExpress bathing experienceFluid heatersWater useWater volume
Owner:GUANGDONG MACRO GAS APPLIANCE
Shift Control Method For An Automatic Gearbox
ActiveUS20080113847A1Small sizeShifting sequenceGearing controlEngine controllersTransmission brakeElectric machine
A shift control method of a range group transmission with a multi-speed main transmission, which connects with a drive motor, via a clutch (K) and an input shaft. A transmission brake optionally engages the input shaft. At least a two range group is located downstream of the main transmission. A range change shift is accomplished by changing a gear of the main transmission and the range group. The shifting sequence is accelerated by: reducing motor torque and disengaging the clutch (K); disengaging a previous range group gear; synchronizing a new range group gear; disengaging a previous main transmission gear; engaging the new range group gear; synchronizing a new main transmission gear; engaging the new main transmission gear; and engaging the clutch (K) and increasing the motor torque, such that synchronization of the new gear occurs by influencing the input shaft of the main transmission.
Owner:ZF FRIEDRICHSHAFEN AG
Air conditioner, control method thereof and computer readable memory medium
ActiveCN110131845AExtended service lifeImprove reliabilityMechanical apparatusResource utilizationShift sequence
The invention provides an air conditioner, a control method thereof and a computer readable memory medium. The air conditioner comprises multiple outdoor units. Each outdoor unit comprises a compressor and further comprises a memorizer and a processor. Each memorizer is used for storing computer programs. Each processor is used for executing the computer programs for implementation, obtaining operating parameters of the compressor corresponding to any outdoor unit, comparing the operating parameters with the operating parameter range of the corresponding compressor, conducting encoding on thecorresponding outdoor unit according to a comparison result and enabling the encoded outdoor units to take turns to operate according to the shift sequence. According to the air conditioner, encodingis conducted on the outdoor units according to the current operating state; the encoded outdoor units are controlled to take turns to operate according to the shift sequence, and furthermore, a parallel connection multi-split air conditioning unit is optimized in small-load shift operation; it is guaranteed that the reliability of a system is in the optimal state all the time; the service life ofthe unit is prolonged; and the utilization rate of resources is increased.
Owner:GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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