• Journal of Korea Society of Industrial Information Systems
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• v.19 no.4
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• pp.105-117
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• 2014

Acquisition of information through the broadcast media is essential for modern life and each broadcaster has progressed its service over the internet with the development of digital technology. Under this circumstance, this study presented the results which compared and analyzed the web accessibility evaluation for Korea, USA, and Japan's leading broadcaster web sites. According to the study results, there was no significant difference in the level of accessibility in all web sites of three countries, but accessibility compliance rate such as alternate text, skip-navigation of repeated region, and title was somewhat insufficient for Korean web sites. In addition, accessibility errors in the brightness contrast of the text contents, the run of the functions that a user doesn't have any intention, the clear statement of the default language, and the label provision were investigated. Therefore, Korean broadcasters should urgently improve and modify these errors and problems for effective web accessibility.

• Journal of Agricultural Extension & Community Development
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• v.13 no.1
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• pp.99-121
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• 2006

The purpose of the study was to analyze agricultural and rural news in mass media reporting. This study analyzed the representation of agricultural and rural news of Korean Broadcasting System (KBS), established in 1947 as a public service broadcaster and the Seoul Broadcasting System (SBS), established in 1990 as a private service broadcaster in Korea. There has been criticisms of isolated and anecdotal reporting of agricultural and rural issues, thus, leading to negative public perception mainly influenced by mass media even though there has been increases in the publicity activities regards agricultural policies in the KBS and SBS broadcasting news. This study was designed to reveal the merits of the preceding criticisms. For this purpose, a total of 437 news items issued between September 2004 and August 2005 were analyzed via content and framing analysis research methodologies. The major findings and conclusions of the study were as follows: 1. Content analysis of agricultural and rural news revealed that the lack of relative quantity and 'in-depth analysis' in agricultural reporting and the thematic concentration on negative news and flash events were the most prominent characteristics of Korean broadcasting news. 2. The quantity of agricultural news was relatively insufficient and qualitatively superficial and stereotyped lacking in comprehensive understanding of agricultural and rural issues and inclined toward flash events and crisis-oriented. Based on the findings and conclusions, following recommendations are offered; 1) Agricultural institutions should consider changing the images of rural society and farmers implementing agricultural and rural policies in the future, and perception of the general public should be considered in reporting agricultural and rural news. 2) Further research should be conducted to provide practical implications for the broadcast media on the agricultural information system.

• Korean journal of communication and information
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• v.19
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• pp.265-294
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• 2002

The purpose of this study is to explore the way in which the internet audience constitutes cyber culture by analysing a bulletin board system(BBS) on a historical drama, 'The World of Women'(SBS). Research findings show that the internee audience participates in a cyber space by five manners; personal participation(18.9%), critique of broadcaster's policy(11.3%), participation in a television drama community(42.1%), co-authorship(6.4%), evaluation and interpretation(21.3%). Through these kinds of participant activities, the internee audience tends to constitute a new cyber culture. Firstly, the audience seems to read 'The World of Women' by a specific way. It is the interest of a Um court lady that is characteristic on BBS of 'The World of Women'. Secondly, the internet audience constructs a new community of meaning by means of using emoticon(emotion and icon), deconstructing grammar, and remaking new signs. Thirdly, the internet audience argues their power over drama production, in other words, their ownership over the drama. Fouthly, the audience actively protests and criticise the policy of the broadcaster, especially charged service. Finally, the internet audience is likely to enjoy writing itself as a fun.

• Journal of Advanced Navigation Technology
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• v.12 no.3
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• pp.245-254
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• 2008

If the broadcast message is sent, first of all, the privileged users will decode the session key by using his or her personal key, which the user got previously. The user willget the digital information through this session key. As shown above, the user will obtain messages or session keys using the keys transmitted from a broadcaster, which process requires effective ways for the broadcaster to generate and distribute keys. In addition, when a user wants to withdraw or sign up, an effective process to renew a key is required. It is also necessary to chase and check users' malicious activities or attacking others. This paper presents a method called Traitor Tracing to solve all these problems. Traitor tracing can check attackers and trace them. It also utilizes a proactive way for each user to have effective renewal cycle to generate keys.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2014.06a
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• pp.103-104
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• 2014

Wide Area Differential GNSS(WA-DGNSS) was developed in order to improve the accuracy and integrity performance of GNSS. In Korea, WA-DGNSS development project, which aims to develop core algorithms and verify the performance using pseudolite-based demo system, is currently in progress. In this paper, overall structure of developed system and experimental methods which enables the post-processing test with commercial receiver will be described. In this system, pseudolite is used to broadcast augmenting signal and RF signal logger and broadcaster were used to test the performance. Performance test was conducted broadcasting the logged RF signal and pseudolite signal to commercial receiver and those results will be described.

• The KIPS Transactions:PartC
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• v.11C no.2
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• pp.149-156
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• 2004

Broadcast encryption schemes are applied to transmit digital informations of multimedia, software, Pay-TV etc. in public network. Important thing is that only user who is permitted before only must be able to get digital information in broadcast encryption schemes. If broadcast message transfers, users who authority is get digital information to use private key given in the advance by oneself. Thus, user acquires message or session key to use key that broadcaster transmits, broadcaster need process that generation and distribution key in these process. Also, user secession new when join efficient key renewal need. In this paper, introduce about efficient key generation and distribution, key renewal method. Take advantage of two technique of proposal system. One is method that server creates key forecasting user without user's agreement, and another is method that server and user agree each other and create key Advantage of two proposal system because uses a secret key broadcast message decryption do can and renewal is available effectively using one information whatever key renewal later.

• The Journal of the Korea Contents Association
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• v.18 no.7
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• pp.609-619
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• 2018

Domestic broadcasting companies are obliged to provide the disaster information quickly to protect the public from the disaster, and people can prepare the disaster. Especially, Korea Broadcasting System (KBS) has a duty to deliver disaster news more quickly and accurately than other broadcasting companies because it is designated as a host broadcaster for disaster broadcasting services in accordance with Article 43 of the Broadcasting Act. This study examined how the KBS deals with social disaster news related to Zika virus, and evaluated whether they used the frames in a timely manner to help people prepare a disaster. Based on the results of this analysis, this study tried to suggest practical implications for measures to improve the efficiency and reliability of disaster news report.

• Journal of Advanced Navigation Technology
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• v.12 no.1
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• pp.34-45
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• 2008

Broadcast encryption schemes are applied to transmit digital informations of multimedia, software, Pay-TV etc. in public network. User acquires message or session key to use key that broadcaster transmits, broadcaster need process that generation and distribution key in these process. Also, user secession new when join efficient key renewal need. In this paper, introduce about efficient key generation and distribution, key renewal method. The temporary conference environment base structure against an each mobile device wild gap. Without the transmission possible, it follows infrequent location change and with the quality where the key information change flow. Thus, in this paper, in order to apply to the embedded computing environment and the key generation and the efficient key renewal are done when the mobile device is used of the specify space it proposes.

• The Journal of the Korea Contents Association
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• v.11 no.10
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• pp.93-107
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• 2011

SO and Satellite Broadcaster can operate SO Operating channel in Korea. However, the Broadcasting act does not specify the direction of what purpose the SO operating channel would be operated for. Accordingly, SO and Satellite Broadcaster do not operate SO operating channel or use it as profit channel when operating. In this respect, the cases of U.S. and Japan have been studied to determine how SO operating channel should be operated to make it desirable. In the U.S., it is being used in various ways such as profit channel, multi-access channel and access channel. In Japan, it is mainly focused on the role as local channel, being coordinated with local governments to form public opinion on local news and issues or to announce local events. In Korea, SO is operating local channel similar to the one in Japan rather than SO operating channel, while Satellite Broadcasting is operating SO operating channel mainly for its profits. As SO operating channel is operated on the basis of the broadcasters' expediency without clear stipulation in Korea, we will need to seek the plan to use it for public interests by discussing more the status and operation of SO operating channel.

• The Journal of the Korea Contents Association
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• v.15 no.5
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• pp.142-150
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• 2015

This study examines the effect of changes in the content distribution strategy on VOD usage by comparing the VOD usage pattern following the changes in the IPTV and Digital Cable SVOD holdback policy. The result of this study shows that after changing the SVOD holdback from one week to three weeks, the VOD usage decreased up to 50 percent while paid VOD revenue increased as a result of the rise in PPM. The time series analysis shows statistical decrease in the number of SVOD usage, SVOD usage per user, and PPV revenue per user while VOD revenue per user increased significantly. Moreover, SVOD usage within the drama genres such as mini-series, weekend series, weekend special series, and sitcom decreased significantly. This research provides a case study on the effect of the broadcaster's content distribution policy on the VOD user behavior thus proposing broadcasters and platform operators the ways of establishing distribution strategy as well as invigorating the VOD usage.