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4-Traders Homepage  >  Equities  >  KOREA EXCHANGE  >  LG Electronics Inc.    066570   KR7066570003

LG ELECTRONICS INC. (066570)
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LG Electronics : Patent Issued for Entropy Decoding Method, and Decoding Apparatus Using Same (USPTO 10015523)

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07/12/2018 | 11:42pm CEST

By a News Reporter-Staff News Editor at Electronics Newsweekly -- According to news reporting originating from Alexandria, Virginia, by VerticalNews journalists, a patent by the inventors Lim, Jae Hyun (Seoul, KR); Park, Seung Wook (Seoul, KR); Jeon, Yong Joon (Seoul, KR); Kim, Chul Keun (Seoul, KR); Choi, Young Hee (Seoul, KR); Kim, Jung Sun (Seoul, KR); Park, Nae Ri (Seoul, KR); Hendry, Hendry (Seoul, KR); Jeon, Byeong Moon (Seoul, KR); Park, Joon Young (Seoul, KR), filed on May 10, 2016, was published online on July 3, 2018.

The assignee for this patent, patent number 10015523, is LG Electronics Inc. (Seoul, KR).

Reporters obtained the following quote from the background information supplied by the inventors: "In recent years, demands for a high-resolution and high-quality image have increased in various fields of applications. As an image has a higher resolution and higher quality, an amount of data on the video increases more and more. Accordingly, when video data is transferred using media such as existing wired or wireless broadband lines or video data is stored in existing storage media, the transfer cost and the storage cost of data increase.

"In order to effectively transfer, store, and reproduce information on high-resolution and high-quality images, high-efficiency video compression techniques can be utilized.

"In order to enhance video compression efficiency, a method of predicting information of a current block using information of neighboring blocks of the current block without transferring the information of the current block can be used.

"Inter prediction and intra prediction can be used as the prediction method. In the inter prediction, pixel values of a current picture are predicted with reference to information of other pictures. In the intra prediction, pixel values of a current picture are predicted using inter-pixel relationships in the same picture. When the inter prediction is performed, information indicating a reference picture and information indicating a motion vector from the neighboring blocks in an inter prediction mode can be utilized to designate a part of another picture to be used for the prediction.

"An encoding device entropy-encodes video information including the prediction result and transmits the encoded video information along with a bitstream. A decoding device entropy-decodes the received bitstream and reconstructs the video information.

"It is possible to enhance compression efficiency of video information through the use of entropy encoding and entropy decoding."

In addition to obtaining background information on this patent, VerticalNews editors also obtained the inventors' summary information for this patent: "Technical Problem

"An object of the invention is to provide a method and a device for effectively performing entropy coding to enhance coding efficiency.

"Another object of the invention is to provide a method and a device for effectively utilizing contexts in entropy coding.

"Another object of the invention is to provide a method and a device for utilizing different contexts depending on states and conditions in entropy coding.

"Solution to Problem

"(1) According to an aspect of the invention, there is provided an entropy decoding method including the steps of: decoding bins of a syntax element; and obtaining information on the syntax element on the basis of the decoded bins, wherein the step of decoding the bins includes performing context-based decoding or bypass decoding on a bin of the syntax element. At this time, the context may be adaptively calculated or may have a predetermined fixed value.

"(2) In (1), the step of decoding the bins may include applying independent context to the bin of the syntax element.

"(3) In (1), the step of decoding the bins may include applying a bypass mode to some bins of the bins of the syntax element and applying independent contexts to the other bins.

"(4) In (1), the step of decoding the bins may include applying independent context to the bin which is decoded on the basis of context and the independent context may be a context which is updated independently of the other contexts.

"(5) In (1), the step of decoding the bins may include determining whether the bin of the syntax element is to be bypass-decoded and performing decoding based on contexts when it is determined that the bin is not bypass-decoded.

"(6) In (1), the step of decoding the bins may include performing decoding on the basis of context index allocated to the bin of the syntax element with a context index table on which the context indices are allocated to the bins of the syntax element.

"(7) In (6), the context index table may allocate the same context index to some bins of the bins of the syntax element.

"(8) In (6), the context index table may allocate the same context index to some bins of the bins of the syntax element and may allocate a bypass mode to some bins.

"(9) In (1), the step of decoding the bins includes performing decoding using a context index table.

"The context index table may allocate context indices and an offset based on the type of a picture to be coded to the bins of the syntax element, and the bin of the syntax element may be decoded on the basis of a context indicated by the sum of the context index and the offset.

"(10) In (9), the context index table may allocate the same context index to some bins of the bins of the syntax element.

"(11) In (9), the context index table may allocate the same context index to some bins of the bins of the syntax element and may allocate a bypass mode to some bins.

"(12) According to another aspect of the invention, there is provided an entropy decoding device including: an entropy decoding module that decodes bins of a syntax element; and a prediction module that generates a prediction block on the basis of the decoded syntax element, wherein the entropy decoding module performs context-based decoding or bypass decoding on a bin of the syntax element.

"(13) In (12), the entropy decoding module may apply a bypass mode to some bins of the bins of the syntax element and may apply independent contexts to the other bins.

"(14) In (12), the entropy decoding module may perform decoding on the basis of context index allocated to the bin of the syntax element with a context index table on which the context indices are allocated to the bins.

"(15) In (12), the entropy decoding module may perform decoding using a context index table, the context index table may allocate context indices and an offset based on the type of a picture to be coded to the bins of the syntax element, and the bin of the syntax element may be decoded on the basis of a context indicated by the sum of the context index and the offset.

"Advantageous Effects

"According to the invention, it is possible to effectively perform entropy coding to enhance coding efficiency.

"According to the invention, it is possible to enhance coding efficiency of entropy coding by effectively utilizing contexts in performing the entropy coding.

"According to the invention, it is possible to enhance coding efficiency of entropy coding by reflecting states and conditions in performing the entropy coding and applying different contexts."

For more information, see this patent: Lim, Jae Hyun; Park, Seung Wook; Jeon, Yong Joon; Kim, Chul Keun; Choi, Young Hee; Kim, Jung Sun; Park, Nae Ri; Hendry, Hendry; Jeon, Byeong Moon; Park, Joon Young. Entropy Decoding Method, and Decoding Apparatus Using Same. U.S. Patent Number 10015523, filed May 10, 2016, and published online on July 3, 2018. Patent URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=10015523.PN.&OS=PN/10015523RS=PN/10015523

Keywords for this news article include: Asia, Business, South Korea, LG Electronics Inc., Electronics Companies, Electronic Equipment Companies.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2018, NewsRx LLC

(c) 2018 NewsRx LLC, source Technology Newsletters

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Financials (KRW)
Sales 2018 63 805 B
EBIT 2018 3 337 B
Net income 2018 1 880 B
Debt 2018 5 338 B
Yield 2018 0,57%
P/E ratio 2018 7,58
P/E ratio 2019 6,92
EV / Sales 2018 0,30x
EV / Sales 2019 0,27x
Capitalization 14 100 B
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Mean consensus OUTPERFORM
Number of Analysts 32
Average target price 112 889  KRW
Spread / Average Target 39%
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Do-Hyun Jung President, Co-CEO, CFO & Director
Seong-Jin Cho Vice Chairman & Co-Chief Executive Officer
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Bon-Joon Koo Vice Chairman
Chang-Woo Lee Outside Director
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