摘要:
Disclosed herein are a data recording apparatus and method using three dimensional (3D) optical memory and an authentication apparatus and method using 3D optical memory. The data recording apparatus includes a recording excitation light splitting unit, a condition storage unit, and a data recording unit. The recording excitation light splitting unit splits recording excitation light into first split light and second split light. The condition storage unit stores recording conditions including information about the waveforms, wavelengths and phases of the split light and information about an arrangement of reflection mirrors configured to reflect the split light. The data recording unit records storage data by making the split light incident on the 3D optical memory through the reflection mirrors under the recording conditions.
摘要:
The present invention relates to a method and apparatus for transceiving data. A method in which a transmitting terminal transmits data to a receiving terminal in a MIMO system according to one embodiment of the present invention comprises the following steps: generating a data field containing the data; generating a signal field containing information on the data field; generating a data frame containing the data field and the signal field; and transmitting the data frame to the receiving terminal. According to the present invention, a method for a wireless local area network by using Multi-User Multiple Input Multiple Output, MU-MIMO, transmission is provided, the method comprising the steps of receiving a Physical layer convergence protocol Protocol Data Unit, PPDU from a transmitter over an operating channel, the PPDU including a common signal field, a user dedicated Very High Throughout Signal-B, VHT SIG-B, field and VHT data ; and checking a cyclic redundancy check, CRC, over the VHT SIG-B field, wherein the common signal field for all users includes transmission duration information that indicates a duration of the PPDU , wherein the VHT SIG-B field includes length information indicating a length of a Physical layer Service Data Unit, PSDU and information about a modulation and coding scheme, MCS , wherein the VHT data includes a service field and the PSDU , and wherein the service field includes scrambler information and the CRC, the CRC being calculated over the VHT SIG-B field.
摘要:
An information insertion method, an information extraction method, and an information extraction apparatus using dot-based information are disclosed herein. The information extraction apparatus includes an identification unit and an extraction unit. The identification unit identifies a set of at least one dot output to a target. The extraction unit extracts information from the set of at least one dot.
摘要:
Provided are a method, server, and a system for estimating patent prosecution related activity for a selected inquiry period. The method includes receiving at least one type of values among policy variable values, period-specific representative values, and expense parameter values, calculating patent prosecution related activity and the dates of incurrence of expenses regarding the case information to generate a matched expense item, recording field values in a table, and outputting the table in which the field values are recorded according to an output condition.
摘要:
Disclosed is a communication method in a wireless communication system on the basis of a carrier aggregation. The communication method on the basis of a carrier aggregation comprises the steps of: receiving a PDSCH from a base station via a subframe n of a TDD cell; and transmitting, to the base station, a PUCCH including a response to the PDSCH via a subframe n+4 of an FDD cell. Accordingly, an HARQ process may be performed efficiently.
摘要:
The present invention relates to a technique relating to a method and apparatus for generating, transmitting, and receiving a data frame having a newly proposed format in a wireless communication system. According to the technique, the method for generating a data frame in a wireless communication system comprises the following steps: generating at least one first subframe; generating at least one second sub frame; and generating a data frame including the first and second subframes, wherein the first and second subframes include length information of a MAC protocol data unit (MPDU) contained in the and second subrames, and the length information of the MPDU contained in the second subframe is zero.