公开(公告)号：US09154786B2

公开(公告)日：2015-10-06

申请号：US13729556

申请日：2012-12-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Dae-Hee Kim ,  Nam-Ho Hur ,  Soo-In Lee ,  Yung-Lyul Lee ,  Jong-Ryul Kim ,  Suk-Hee Cho

IPC: H04N19/50 ,  H04N19/597 ,  H04N19/52 ,  H04N19/61 ,  H04N19/60 ,  H04N19/114 ,  H04N19/136 ,  H04N19/527 ,  H04N19/94 ,  H04N19/58

CPC classification number: H04N19/50 ,  H04N19/114 ,  H04N19/136 ,  H04N19/52 ,  H04N19/527 ,  H04N19/58 ,  H04N19/597 ,  H04N19/60 ,  H04N19/61 ,  H04N19/94

Abstract: Provided are an apparatus and method for predictive coding/decoding for improving a compression rate of multiview video using one or two additional reference frame buffers. The predictive encoding apparatus includes: a multiview reference picture providing unit for providing a reference picture for a predictive encoding according to temporal and spatial GOP structure information; a prediction unit for creating a vector by predicting which part of the reference picture inputted from the multiview reference picture providing unit is referred by a picture to currently encode; a transforming and quantizing unit for obtaining a difference signal between the predicted signal inputted from the prediction unit and a picture signal to currently encode, transforming the obtained difference signal, quantizing the transformed signal, and compressing the quantized signal; and an entropy encoding unit for encoding the quantized signal and the vectors according to a predetermined scheme and outputting the encoded signal.

Abstract translation: 提供了一种用于使用一个或两个附加参考帧缓冲器来改善多视图视频的压缩率的预测编码/解码的装置和方法。 预测编码装置包括：多视图参考图像提供单元，用于根据时间和空间GOP结构信息提供用于预测编码的参考图像; 一个预测单元，用于通过预测由多视点参考图像提供单元输入的参考图像的哪个部分被一个图片参照当前编码来创建一个矢量; 变换和量化单元，用于获得从预测单元输入的预测信号与图像信号之间的差分信号，以当前编码，变换所获得的差分信号，量化变换的信号，以及压缩量化信号; 以及熵编码单元，用于根据预定方案对量化信号和向量进行编码，并输出编码信号。

公开(公告)号：US11096030B2

公开(公告)日：2021-08-17

申请号：US16814779

申请日：2020-03-10

Applicant: Electronics and Telecommunications Research Institute

Inventor： Suk-Hee Cho ,  Byung-Jun Bae ,  Woong-Soo Na ,  Na-Yeon Kim ,  Dong-Joon Choi

IPC: H04M11/04 ,  H04W4/90 ,  H04W88/02

Abstract: Disclosed herein is a method of operating an apparatus for providing a cell broadcast service. The operating method includes receiving, by a transmission device of a broadcaster, a cell broadcast service signal containing an emergency alert from a mobile carrier; converting, by the transmission device, the cell broadcast service signal into a public warning broadcast signal; and transmitting, by the transmission device, the public warning broadcast signal to a mobile switching center or a base station.