Abstract:
Provided are an image encoding method and apparatus, and an image decoding method and apparatus. The image encoding method includes: obtaining a variation of a motion estimation error with respect to a homogeneity degree of a motion vector according to mergence, based on a motion vector of each of merged blocks obtained by merging adjacent blocks, motion vectors of the adjacent blocks included in each of the merged blocks, and motion vectors of neighboring blocks of each of the merged blocks; and determining, based on the obtained variation, a merged block having a smallest variation from among the merged blocks and whether to merge the adjacent blocks included in the determined merged block.
Abstract:
The present invention relates to a power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in a resonant frequency. More particularly, the present invention relates to a power supply and pickup system capable of maintaining the stability of efficiency of transmitting power to a pickup device from a power supply device even when a voltage or current changes by the variation in a resonant frequency. According to the power supply and pickup system of the present invention, Q-factor of a power supply and pickup system is set to a low value, a stability of efficiency of transmitting power to a pickup device from a power supply device is maintained even when a voltage of current changes by the variation in a resonant frequency.
Abstract:
An image sensor includes a light-electron conversion unit, a signal generation unit, and a selection unit. The light-electron conversion unit generates photo-charges from incident light. The signal generation unit accumulates photo-charges from the converter in a storage node during a detection period, and then generates a first analog signal and a second analog signal during an output period. The analog signals are generated based on an amount of photo-charges accumulated in the storage node. The selection unit generates an image signal based on one of the first analog signal and the second analog signal.
Abstract:
The power generating circuit includes: a first transistor having a control terminal to which a second control signal is applied and one end to which a first control signal is applied; and a second transistor having a control terminal to which the first control signal is applied and one end to which the second control signal is applied, wherein the other ends of the first transistor and the second transistor are connected to an output terminal.
Abstract:
Provided is a method and apparatus for operating an idle mode in a wireless communication system. The method includes receiving a first message requesting entry to an idle mode from a Subscriber Station (SS) through at least one Base Station (BS), selecting in response to reception of the first message whether the MS is to enter an idle mode in which BSs belonging to a paging group broadcast a paging message for the MS or whether the MS is to enter a semi-idle mode in which BSs belonging to a semi-idle paging group, which is a subset of the paging group, broadcast the paging message for the SS, and transmitting Paging announce information instructing the BSs belonging to the semi-idle paging group to broadcast the paging message for the SS, if the semi-idle mode is selected.
Abstract:
A service providing method and system for instance hosting is disclosed. A service providing system including an instance hosting gateway may include: a network adaptor configured to receive data by connecting to at least one physical node over a wired/wireless network; and an instance manager configured to manage at least one process and a profile provided with respect to at least one of a process node deployed in a process form and the physical node, and to connect the received data or data transferred from the process node to at least one instance using the profile and the at least one process.
Abstract:
A method and an apparatus for controlling wireless power transmission are provided. An apparatus for controlling wireless power transmission includes a controller configured to determine an output voltage of a power factor correction unit based on charging information of a battery, the power factor correction unit configured to correct an input voltage into the determined output voltage, and output a variable voltage, and a resonance unit configured to transmit power converted from the variable voltage to a wireless power reception apparatus.
Abstract:
Provided are a phase-change memory device using insulating nanoparticles, a flexible phase-change memory device and a method for manufacturing the same. The phase-change memory device includes an electrode, and a phase-change layer in which a phase change occurs depending on heat generated from the electrode, wherein insulating nanoparticles formed from a self-assembled block copolymer are provided between the electrode and the phase-change layer undergoing crystallization and amorphization.
Abstract:
A wireless communication system provides an antenna apparatus for the wireless communication system. The antenna apparatus includes a base, a plurality of Yagi-Uda antenna modules disposed in a specific arrangement, a plurality of floating metal modules correspondingly installed in upper portions of the Yagi-Uda antenna modules and selectively connected to a corresponding Yagi-Uda module among the plurality of Yagi-Uda antenna modules, a switching element for selectively switching the floating metal module and the Yagi-Uda antenna module, and a controller for controlling the Yagi-Uda antenna module to comprise a directivity in a desired direction by selectively switching the switching element.
Abstract:
The present invention relates to a ferrite core structure for a power supply device of an electric vehicle which changes the structure of a ferrite core module according to a related art to improve output and limits a reduction in strength due to warpage in a traveling direction of the vehicle to prevent cracks generated in a surface of an intermediate portion of a power supply road from occurring. For this, the ferrite core structure for a power supply device of the electric vehicle includes: a plurality of horizontal core parts arranged spaced apart from each other to prevent a magnetic flux from leaking into the ground; a plurality of first vertical core parts extending upward from both ends of the horizontal core parts to prevent the magnetic flux from leaking into an outer surface; a second vertical core part having at least two rows extending upward from an intermediate portion of each of the horizontal core parts, the second vertical core part being arranged in a direction parallel to the first vertical core parts; and a first support part connecting the plurality of first vertical core parts to each other to support the first vertical core parts.