Abstract: A water purifier comprising: a filter unit comprising at least one filter filtering water to generate purified water; a flow rate sensor measuring a flow rate of the water; a concentrated water channel discharging concentrated water, having been filtered by the filter unit; an extraction unit extracting the purified water; a flow rate control valve controlling a flow rate of purified water; an opening and closing degree measurement unit, measuring a degree of opening and closing of the flow rate control valve; a concentrated water ratio calculation unit, calculating a ratio between purified water and concentrated water, according to the degree of opening and closing of the flow rate control valve; and a controller, using the flow rate of water and the calculated ratio between purified water and concentrated water, to calculate amounts of water used, integrating the calculated amounts of water, and calculating a lifespan (remaining life) of the filter.

Abstract: The present invention relates to a receptacle connector comprising=a plurality of contacts for electrically connecting a plug connector and a substrate coupled to an electronic device; an insulation part to which the contacts are coupled; a shell to which the insulation part is coupled; a cover to which the shell is coupled; and a sealing member coupled to the shell so as to seal a gap between the electronic device and the shell. The shell includes a shell body; a support member; and a protruding member formed on the support member. The support member protrudes forwards from the cover and is coupled to the cover so as to be located on the outside of the cover, and the protruding member protrudes outwards from the support member and is coupled to the support member so as to limit a distance by which the sealing member can move rearwards.

Abstract: The disclosure relates to an artificial intelligence (AI) system using a machine learning algorithm such as deep learning, and an application thereof. In particular, an electronic apparatus, a document displaying method thereof, and a non-transitory computer readable recording medium are provided. An electronic apparatus according to an embodiment of the disclosure includes a display unit displaying a document, a microphone receiving a user voice, and a processor configured to acquire at least one topic from contents included in a plurality of pages constituting the document, recognize a voice input through the microphone, match the recognized voice with one of the acquired at least one topic, and control the display unit to display a page including the matched topic.

Abstract: A memory controller includes an interleaving component configured to determine an access sequence of a plurality of memory units based on estimated execution times for the respective memory units to perform an operation, and a processor configured to access the memory units in the determined access sequence to perform the operation in an interleaved manner.

Abstract: A vehicular wireless connection system and method are provided to perform wireless communication connection between a vehicle and a smart device of a user. The method includes receiving a plurality of beacon signals by the smart device and generating a positioning key based on at least some of the plurality of beacon signals. Identification information including the positioning key and identification information of at least one nearby wireless device is transmitted to a server. In response to receiving vehicle verification result information from the server, a wireless connection to the vehicle is attempted based on the vehicle verification result information.

Abstract: A method for operating a memory device includes: receiving a program command, a memory address, and a program data from a controller; performing a first temperature sensing operation for measuring an internal temperature to produce a first result of the first temperature sensing operation; performing a program operation on the program data based on the first result of the first temperature sensing operation; performing a second temperature sensing operation for measuring an internal temperature to produce a first result of the second temperature sensing operation; and performing a temperature comparison operation for deciding whether the program operation failed when a difference between the first result of the first temperature sensing operation and the first result of the second temperature sensing operation is greater than or equal to a threshold value.

Abstract: The present invention relates to a technology of detecting object intrusion event in compressed video, e.g., CCTV cameras generating, by extracting regions of moving object, i.e., regions in which substantial movement exists, in the compressed video based on syntax information, such as motion vector and coding type, of each of image blocks of the compressed video without performing conventional complicated image processing, and then persistently finding the regions of moving object in a predetermined region-of-interest more than a time-threshold. The present invention may provide an advantage that crime prevention effect of video surveillance system may be enhanced because an intrusion into a region-of-interest may be detected in real-time manner out of CCTV video without performing complicated processing, i.e., decoding, downscale resizing, differential obtaining, and image analysis, etc.

Abstract: A method and apparatus for transmitting or detecting primary synchronization signal. The receiver receives primary synchronization signal from a transmitter, and detects the sequence used in the received primary synchronization signal by using three root indexes. Here, the primary synchronization signal is generated by using a Zadoff-Chu sequence having one of the three root indexes. The three root indexes comprise a first index and a second index, and a sum of the first index and the second index corresponds to the length of the Zadoff-Chu sequence.

Abstract: An electronic device of the present disclosure may: transmit identification information corresponding to a call counterpart to an external server, using a communication circuit; receive state information of the call counterpart from the external server as a response to the transmission of the identification information; and display the state information of the call counterpart, in one area of a user interface of an application.

Abstract: The disclosure relates to an artificial intelligence (AI) system using a machine learning algorithm such as deep learning, and an application thereof. In particular, an electronic apparatus, a document displaying method thereof, and a non-transitory computer readable recording medium are provided. An electronic apparatus according to an embodiment of the disclosure includes a display unit displaying a document, a microphone receiving a user voice, and a processor configured to acquire at least one topic from contents included in a plurality of pages constituting the document, recognize a voice input through the microphone, match the recognized voice with one of the acquired at least one topic, and control the display unit to display a page including the matched topic.

Abstract: An upconversion nanoparticle includes at least one host selected from LiYF4, NaY, NaYF4, NaGdF4, and CaF3, at least one sensitizer selected from Sm3+, Nd3+, Dy3+, Ho3+, and Yb3+ doped in the at least one host, and at least one activator selected from Er3+, Ho3+, Tm3+, and Eu3+ doped in the at least one host. The upconversion nanoparticle is designed using a calculation from first principles to absorb light in the near-infrared wavelength range whose stability is ensured. Further, a hyaluronic acid-upconversion nanoparticle conjugate, in which the upconversion nanoparticle as described above is bonded to hyaluronic acid, is provided to be used in various internal sites with a hyaluronic acid receptor, particularly enables targeting, and increases an internal retention period and biocompatibility thereof.

Abstract: Disclosed is a data transmission method in a mobile communication system. The data transmission method through a code sequence in a mobile communication system includes grouping input data streams into a plurality of blocks consisting of at least one bit so as to map each block to a corresponding signature sequence, multiplying a signature sequence stream, to which the plurality of blocks are mapped, by a specific code sequence, and transmitting the signature sequence stream multiplied by the specific code sequence to a receiver.

Abstract: The present invention relates to a method for manufacturing lithium hydroxide and lithium carbonate, and a device therefor.

Abstract: A method for operating a memory device includes: receiving a program command, a memory address, and a program data from a controller; performing a first temperature sensing operation for measuring an internal temperature to produce a first result of the first temperature sensing operation; performing a program operation on the program data based on the first result of the first temperature sensing operation; performing a second temperature sensing operation for measuring an internal temperature to produce a first result of the second temperature sensing operation; and performing a temperature comparison operation for deciding whether the program operation failed when a difference between the first result of the first temperature sensing operation and the first result of the second temperature sensing operation is greater than or equal to a threshold value.

Abstract: The present invention relates to a compound represented by any one of the following formula A to formula C, and a photosensitive composition comprising the same, wherein the structure of the compound represented by any one of formula A to formula C is as described in the detailed description of the invention.

Abstract: The present invention relates to a receptacle connector including a plurality of contacts configured to electrically connect a plug connector and a substrate coupled with an electronic device, an insulation portion with which the contacts are coupled, and a shell with which the insulation portion is coupled. Here, the shell includes a shell body, in which an accommodation hole configured to allow the plug connector to be inserted therein is formed, and a restriction portion protruding toward the accommodation hole to restrict a movable distance of the plug connector in an insertion direction in which the plug connector is inserted into the accommodation hole.

Abstract: A method and apparatus for transmitting or detecting primary synchronization signal. The receiver receives primary synchronization signal from a transmitter, and detects the sequence used in the received primary synchronization signal by using three root indexes. Here, the primary synchronization signal is generated by using a Zadoff-Chu sequence having one of the three root indexes. The three root indexes comprise a first index and a second index, and a sum of the first index and the second index corresponds to the length of the Zadoff-Chu sequence.

Abstract: A storage device having an improved operation speed includes a memory controller for controlling a memory device. The memory controller includes a parameter data generator for generating parameter data for changing a parameter value related to an operation of the memory device, and a parameter controller for outputting the parameter data. The parameter data includes an error protection field associated with the parameter value.

Abstract: A method and a user equipment for transmitting control information in a communication system are discussed. The method according to an embodiment includes multiplying a transmission information symbol s for the control information by a frequency direction sequence c(k) to generate a first output sequence s(k), where s(k)=s*c(k), k=0, . . . , Nk?1, and Nk corresponds to a number of subcarriers included in a resource block allocated for an uplink control channel; multiplying the first output sequence s(k) by a time direction sequence x(n) to generate a second output sequence s(k, n), where s(k, n)=s(k)*x(n), n=0, . . . , Nn?1, and Nn corresponds to a number of symbols used for transmission of the control information in a transmission time interval; and transmitting the second output sequence s(k, n) through the uplink control channel in the transmission time interval.

Abstract: A method for transmitting a random access preamble to a base station includes generating the random access preamble from a Zadoff-Chu (ZC) sequence, wherein the random access preamble is defined by cyclic shift (Cv) of the ZC sequence; and transmitting the random access preamble to the base station.