Abstract: Disclosed herein is an apparatus for processing a predictive spatiotemporal query based on synthetic data. The apparatus includes a query-processing unit for analyzing a predictive spatiotemporal query of a user and returning a processing result, a machine-learning unit for training a machine-learning model in response to a request from the query-processing unit and generating synthetic spatiotemporal data based on the machine-learning model, and a data storage unit for storing raw spatiotemporal data and the generated synthetic spatiotemporal data, and the raw spatiotemporal data may be stored in the form of a table including an identifier column and a position column.

Abstract: A spiral phase plate, according to one embodiment, for generating a Laguerre Gaussian beam by reflecting an incident beam emitted from a light source, may comprise: a first quadrant area in which the step height increase rate per unit angle decreases progressively in one direction from the point with the lowest step height to the point with the highest step height; and a second quadrant area in which the step height increase rate per unit angle increases progressively in the one direction.

Abstract: A wireless communication terminal and program updating method are provided. The method downloads a binary file from a host computer to update a program. The method includes determining, if the wireless communication terminal is booted, whether the wireless communication terminal is in a binary file download mode or if the wireless communication terminal has been rebooted by generation of an undesired event; and if so, setting a start position for downloading the binary file according to the number of occurrences of the undesired event. Thereafter, even when downloading is interrupted by an undesired event, downloading is performed from a position at which it was interrupted, not from the start position of the file, so that the time required for downloading the file can be reduced.

Abstract: A wireless communication terminal and program updating method are provided. The method downloads a binary file from a host computer to update a program. The method includes determining, if the wireless communication terminal is booted, whether the wireless communication terminal is in a binary file download mode or if the wireless communication terminal has been rebooted by generation of an undesired event; and if so, setting a start position for downloading the binary file according to the number of occurrences of the undesired event. Thereafter, even when downloading is interrupted by an undesired event, downloading is performed from a position at which it was interrupted, not from the start position of the file, so that the time required for downloading the file can be reduced.

Abstract: Provided are a mobile terminal and a method for sending a short message on the mobile terminal. The method for sending the short message includes setting original and correct character strings required in an address book, each correct character string corresponding to recipients; inputting one short message for the recipients containing an original character string; replacing the original character string in the short message with the correct character strings to generate corrected short messages, each corrected short message corresponding to the recipients; and sending corrected short messages to the corresponding recipients. The method allows a caller to send a corrected short message to each recipient by correcting one short message according to the recipient's attributes. For group transmission to a plurality of recipients, the method enables a caller to write only one original short message that, before transmission, may be corrected to satisfy different attributes of the recipients.