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244results about How to "Avoid sudden changes" patented technology

Continuously variable transmission mechanism and transmission using the same

A continuously variable transmission adapted to set a speed change ratio in accordance with a tilt angle of a rolling member mediating a torque being transmitted, and to transmit a torque among three elements. The transmission mechanism is provided with a rolling member having a smooth outer face and capable of tilting a rotational center axis thereof, and a rotary member arranged to be contacted with a predetermined portion of the outer face of the rolling member in a torque transmittable manner. Specifically, the continuously variable transmission mechanism is configured to vary a rotational speed of the rotary member by changing a rotation radius of a contact point between the rolling member and the rotary member by tilting the rotational center axis of the rolling member.
Owner:TOYOTA JIDOSHA KK

Vehicle-mounted electric generator control system which selectively supplies regenerative field current to battery in accordance with currently available generating capacity

A control apparatus for a vehicle electric generator judges the currently available generating capacity of the generator and establishes a regenerative current mode of operation, utilizing an induced current of the field winding, only when the generating capacity is estimated to be below a predetermined level. The control apparatus also controls the conduction factor of a power transistor to adjust the average voltage applied to the field winding such as to prevent fluctuations in output current and generator torque that would otherwise occur at each changeover to / from the regenerative current mode.
Owner:DENSO CORP

Method for Compensating for Drive Influences on the Steering System of a Vehicle Using an Electric Power Steering System

The invention relates to a method for compensating for drive influences of a drive train of a motor vehicle on its steering system, said motor vehicle having an electric power steering system. A drive train simulation model which is integrated into the motor vehicle and permanently activated is used to determine disturbance variables from a driven behavior so that a compensation torque which counteracts the disturbance variables is generated for the power steering system.
Owner:FORD GLOBAL TECH LLC

Display apparatus and control method thereof

A display apparatus including: a display configured to display an image; and at least one processor configured to, in response to beginning a viewer fatigue reduction function, determine whether a change characteristic of an image displayed on the display during a first time interval of an image signal corresponds to a suitable section for the viewer fatigue reduction function, and control the display to decrease a viewing fatigue level of the displayed image during the determined suitable section.
Owner:SAMSUNG ELECTRONICS CO LTD

Method and device for synchronizing base stations of a mobile communications network

Method and system for synchronization of base stations in a mobile communications network, in particular for the purpose of a seamless handover, time information is transmitted, possibly on request, to the base stations from a time information server via a local area network. Since base stations which are involved in a seamless handover are generally adjacent, and the respective propagation times and / or propagation time fluctuations of time information differ only slightly in the local area network between the time information server and the base station when the base stations are adjacent, highly accurate synchronization may be achieved, especially for a seamless handover.
Owner:ENTERPRISE SYST TECH S A R L

Image data processing of color image

This arrangement of the invention makes intuitively comprehensible image correction of RGB color image data after conversion to HSI data in an intuitive HSI expression format, while ensuring no substantial change of the picture quality of a resulting color image by correction. The technique of the invention analyzes an image consisting of sampling HSI data with regard to each of multiple memory colors, that is, flesh color, green, and sky blue, and sets color correction areas as object correction ranges and correction rate curves in the color correction areas in respective hue ranges of the multiple memory colors, based on the results of the image analysis. These settings are given in the form of a correction table. A correction rate curve set for, for example, the hue range of flesh color in the correction table corrects original hue data Horg of HSI data converted from RGB color image data with a fixed correction rate Δ h in a substantial color correction zone SkH2 to SkH3, while correcting the original hue data Horg of the HSI data with varying correction rates Δ h in a pre-zone SkH1 to SkH2 and in a post-zone SkH3 to SkH4 before and after the substantial color correction zone SkH2 to SkH3 in a preset color correction area SkH1 to SkH4. The correction rate curve does not make any correction for the original hue data Horg of the HSI data out of the preset color correction area SkH1 to SkH4.
Owner:SEIKO EPSON CORP

System for synchronizing communications system components coupled via a communications network

To synchronize communications system components coupled via a communications network, a time information transmitter is provided which is used to transmit time information, possibly on request, relating to the communications system components. The communications system components each have a clock generator, which needs to be synchronized, and a real time clock, where the clock generator both determines the transmission rate for communications data which are to be transmitted and prescribes the time base for the real time clock. In addition, the communications system components each have a comparison device for comparing received time information with a current time value indicated by the real time clock, and a clock frequency controller for regulating the clock frequency of the clock generator on the basis of the comparison result.
Owner:RINGCENTRAL INC

Camera device, image processing system, image processing method and image processing program

A camera device includes an imaging unit generating an imaging area image in which an imaging area is captured from above, and a display-image generation unit generating a display image of an imaging object moving in the imaging area by use of an clipped image clipped from the imaging area image. In this case, an clipping reference position P corresponding to the imaging object in the imaging area image is determined, and a reference distance r between an imaging reference position O corresponding to the imaging unit and the clipping reference position P in the imaging area image is calculated. When the reference distance r is short, a rotation angle θNEW for rotating the clipped image in generating the display image is calculated based on a reference angle θ corresponding to an inclination of the imaging object in the imaging area image and the reference distance r.
Owner:PANASONIC CORP

Digital auto gain control method and device

This invention discloses one digital automatic gains control method and its device, which comprises the following steps: dividing the sound signals by fix interval into several frames; processing active sound test on each sound signal and dividing them into two types of sound frame and noise frame; according to current frame and next frame of sound types to processing slide on current sound samples gains between frames; processing frame slide on current each sound sample.
Owner:VIMICRO CORP

Efficient scenery object rendering

The number of graphic objects in a visual tile rendered varies as a function of distance between the tile and a viewpoint in a simulation. Fewer objects are rendered when the tile is far from the viewpoint, and vise versa. A level of detail (LOD) value is pseudo-randomly selected and associated with each object, indicating the maximum distance at which the object will be visible. A current LOD value is determined for the tile. An object is rendered if its LOD value is equal or greater than the current LOD value of the tile. Objects are faded into and out of view by modulating an opacity value as the current LOD value changes. Texture values of an object are adjusted as a function of ambient and direct components of light on the object, to achieve lighting corresponding to time of day, current season, and / or region in the simulated world.
Owner:MICROSOFT TECH LICENSING LLC

Communication Apparatus and Communication Method and Communication System

Frames in a variable length frame format which are addressed to a plurality of users are multiplexed and preferably transmitted.Data frames having different lengths are multiplexed on a same time through space division multiple access, but since the multiplexed frames are transmitted while eventually having a same length, when the multiplexed data frames from the access point STA0 are received in the respective communication stations STA1 to STA3 in FIG. 4 or when data simultaneously transmitted from the respective communication stations STA1 to STA3 are received in the access point STA0 in FIG. 5, it is possible to eliminate an operation instability of AGC.
Owner:SONY CORP

Method for dynamically adjusting backlight brightness based on image content

The invention discloses a method for dynamically adjusting backlight brightness based on the image content. The method can dynamically adjust a backlight and adjust the image contrast effectively. The method includes the following steps: (1) calculating the gray level histogram of an image to be used for calculating the highest degree of distortion and the largest gain coefficient of the image; (2) limiting the maximum value of the gain coefficient to reduce the influences that the display effect is weakened and a user feels uncomfortable in vision, wherein the influences are caused by sudden change of the backlight; (3) according to the ambient brightness, determining the minimum value of the current brightness of a mobile phone to determine the current maximum distortion so that the situation that the user is unable to recognize the content on a screen because the environment is too bright will not happen; (4) introducing an image similarity algorithm of a historical frame and a current frame to reduce the number of times of calculation of the gain coefficient. The method dynamically adjusts the backlight according to the display content on the screen, reduces calculation amount to the greatest extent under the condition that the effect of the calculation amount on the performance of the mobile phone is taken into consideration, compensates for the caused image distortion, and ensures that the visual experience of the user will not be affected by the design of low power consumption.
Owner:SOUTH CHINA UNIV OF TECH

Preform for plastics material bottles or wide-necked vessels

A preform for manufacturing plastics material bottles or wide-necked vessels is described, having a rigid, substantially elongate, frustoconical body portion that is closed at one of its longitudinal ends by a dome-shaped end portion and at its opposite longitudinal end adjoins via a preform collar a neck portion provided with a pouring opening. The preform possesses in the body portion an external diameter that is reduced from the preform collar to the end portion. The body portion has a wall thickness which changes over its longitudinal extension substantially constantly by up to +2 mm. For this purpose, it possesses an internal diameter which decreases substantially constantly from a transition to the preform collar up to a transition to the dome-shaped end portion.
Owner:ALPLA WERKE ALWIN LEHNER

Cooling device for engine

A cooling device for an engine that can raise the temperature of cooling water within a short period of time during the warm-up operation and allows a simple structure. The cooling device has a radiator circulation flow channel for circulation via an engine, a radiator, and a thermostat; a heater circulation flow channel for circulation via the engine, a heater core, and the thermostat; a bypass circulation flow channel for circulation via the engine and the thermostat; an electronically controlled valve; and a pump. The radiator circulation flow channel, heater circulation flow channel, and bypass circulation flow channel merge in the thermostat and form a common flow channel between the thermostat and the engine. The pump is provided in the common flow channel. At the start of the warm-up period and during the warm-up operation, the circulation in the radiator circulation flow channel is substantially stopped by the thermostat, cooling water circulation is actuated in the bypass circulation flow channel, and an opening degree of the electronically controlled valve is gradually increased from a minimum as the cooling water temperature rises. At the end of the warm-up period, circulation is actuated in the radiator circulation flow channel and substantially stopped in the bypass circulation flow channel.
Owner:YAMADA SEISAKUSHO KK

Vehicle-mounted electric generator control system which selectively supplies regenerative field current to battery in accordance with currently available generating capacity

A control apparatus for a vehicle electric generator judges the currently available generating capacity of the generator and establishes a regenerative current mode of operation, utilizing an induced current of the field winding, only when the generating capacity is estimated to be below a predetermined level. The control apparatus also controls the conduction factor of a power transistor to adjust the average voltage applied to the field winding such as to prevent fluctuations in output current and generator torque that would otherwise occur at each changeover to / from the regenerative current mode.
Owner:DENSO CORP

PLL with low phase noise non-integer divider

A phase-locked loop with a non-integer divider utilizes a state machine to periodically select a new clock from a plurality of clocks for comparison to a reference signal after division by an integer divide by N block. Based on a desired divider ratio, the state machine selects the new clock that is phase shifted with respect to a presently selected clock. Each change from the presently selected clock to the new clock produces a selected clock cycle that is expanded or contracted by the amount of phase shift between the new clock and the presently selected clock. The integer divide by N block divides the selected clock by the integer portion of the desired divider ratio producing a divided clock that is effectively divided by a non-integer amount.
Owner:XILINX INC

Apparatus for automatically adjusting direction of light axis of vehicle headlight

The apparatus for automatically adjusting a direction of a light axis of a vehicle headlight includes a steering angle sensor, a vehicle speed sensor, a memory for storing a plurality of control maps each of which defining a relationship between the steering angle and a swiveling angle, a processing unit for performing a map switchover by which one of the plurality of the control maps is selected depending on the vehicle speed and the steering angle, and an actuator for swiveling, from an initial direction, the light axis of the vehicle headlight by the swiveling angle defined by one of the plurality of control maps selected by the processing unit. The processing unit performs the map switchover when the steering angle is changed to outside a predetermined angular range around a neutral angular position of the steering wheel.
Owner:DENSO CORP

Application of blend zones, depth reduction, and transition zones to ablation shapes

ActiveUS20120271287A1Reduce morbidityEfficiently and effectively helpLaser surgerySurgical instrument detailsOptical powerPhysics
Methods, devices, and systems for reprofiling a surface of a cornea of an eye ablate a portion of the cornea to create an ablation zone with an optically correct central optical zone disposed in a central portion of the cornea, and a blend zone disposed peripherally to the central optical zone and at least partially within an optical zone of the eye. The blend zone can have an optical power that gradually diminishes with increasing radius from the central optical zone.
Owner:AMO MFG USA INC

Power Output Apparatus, Control Method of Power Output Apparatus, and Vehicle Equipped With Power Output Apparatus

In response to the driver's depression of a brake pedal in requirement of catalyst deterioration control with a catalyst deterioration control flag Fc set equal to 1, the braking control of the invention controls the operation of a motor to make a rotation speed Ne of an engine approach to a target rotation speed Ne* in a state of continued combustion (firing) of the engine (steps S180 and S190). Such control ensures a quick decrease of the rotation speed Ne of the engine to the target rotation speed Ne*, thus effectively reducing the wasteful fuel consumption due to the continued operation of the engine at a high rotation speed and enhancing the overall energy efficiency of the vehicle.
Owner:TOYOTA JIDOSHA KK

Delay scheduling-based network traffic conflict prevention method and delay scheduling-based network traffic conflict prevention system

ActiveCN103051546ANo backflowDoes not cause routing jitterData switching networksTraffic capacityCarrying capacity
The invention provides a delay scheduling-based network traffic conflict prevention method and a delay scheduling-based network traffic conflict prevention system. The method includes: step 1: path performance detection is carried out on a default path within a probing cycle, and if the default path of an overlay network can meet the requirement of network transmission performance, step 2 is executed, or else step 3 is executed; step 2: traffic is transmitted via the default path; step 3: a transfer traffic calculation function is utilized to calculate transfer traffic to be transferred on the default path, and the transfer traffic is part of the traffic transmitted on the default path; step 4: path performance detection is carried out on alternate paths, the transfer traffic is allocated onto the alternate paths for transmission according to the carrying capacity of the alternate paths, and the steps are repeated in the next probing cycle. The invention solves the problem of vertical conflict in the prior art, prevents the phenomenon of frequent jitter caused by the optimization conflict problem of the conventional overlay network system, and guarantees the normal service performance of the overlay network.
Owner:INST OF COMPUTING TECH CHINESE ACAD OF SCI

Electric circuit

A functional element is prevented from breakdown and deterioration because of mounting and demounting of the functional element immediately after cut-off of driving power from a constant-current power supply or during supply of the driving power.An electric circuit is configured to electrically connect a constant-current power supply 1 having a capacitance between an output terminal and a reference potential terminal and a detachable functional element 2 to each other. The electric circuit has an element breakdown prevention circuit 10 having a first circuit terminal connected to an output terminal of the constant-current power supply 1 through the functional element 2, and a second circuit terminal connected to the reference potential terminal of the constant-current power supply 1 through the functional element 2. The element breakdown prevention circuit 10 increases an impedance between the circuit terminals to a disconnected state impedance in response to a transition from a connected state, in which the functional element 2 is mounted, to a disconnected state, in which the functional element 2 is removed. The element breakdown prevention circuit 10 decreases the impedance between the circuit terminals to a connected-state impedance in response to a connection state transition.
Owner:IDEC CORPORATION

Method and apparatus for managing power in a mobile communication system

ActiveUS7035662B2Effective resource allocationIncreasing and maximizing numberEnergy efficient ICTPower managementRadio accessCall setup
A method and apparatus can manage power in a mobile communication system according to a call setup in a user equipment. The method can include setting a radio link in response to a setup command, receiving a radio access bearer allocation request command to reset a down link power range, and performing a radio link reconfiguration with the base station; transmitting a down link power measurement request command to adjust the down link power range in response to a down link power measurement result; reconfiguring a radio link in response to the adjusted down link power range. The transmitting and reconfiguring can be repeatedly performed for user equipment. Accordingly, an excessive down link power allocation to a specific subscriber and an abrupt variation of a total down link power can be reduced, and a number of subscribers, who respective cells can accommodate by a call starting control, can be increased.
Owner:LG ERICSSON
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