• 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.

• Korean journal of communication and information
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• v.84
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• pp.7-27
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• 2017

This study explores the possibility of maximizing locality through synergy between local terrestrial broadcasters and cable local channels. To this end, it examines the significance of the concept of locality in the changing environment represented by the 4th Industrial Revolution. It also analyzes the existing situation of broadcasting locality and the terrain of existing studies concerning cable local channels. Based on the reviews, the study searches for the connection points between local terrestrial and cable channels, which are still heterogeneous operators. The difference in the size of broadcast region and the programming time constitutes the optimum condition. As a result of this, the study discusses the issue of appropriateness and feasibility of bundling the local terrestrial and pay-TV channels in the same legal system. By doing so, it reveals the biggest obstacle in institutionalizing the cable channel into the public category is the emotional rejection towards cable TV. In order to overcome this problem, the study suggests to abolish both the current policy guideline characterized as the same service, same regulation principle and the abolition of local business right of cable TV. It also proposes to allow news commentary function of cable local channels and strengthen cable TV's own capabilities.

• Korean journal of communication and information
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• v.56
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• pp.117-131
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• 2011

This study critically reviews the justifications for the restriction of cable local channel's news commentary function in terms of the fundamental principle of journalism. By doing so, it tries to find some problems and ways to solve them. Broadcasting Law and Korea Communications Commission's Rule inhibiting the news commentary of cable local channel on specific issues conflict with the basis of journalism which is particularly represented in Broadcasting Law. The law and rule tend to solidify public opinion for vested rights of local worthies. In addition, they are likely to degenerate cable local channel to the tools for promoting local government. Therefore, this article proposes the revision of the law and rule towards permitting the news commentary of cable local channel. At the same time, it suggests a new broadcasting policy for inducing cable local channel to increase manpower resources and production investment.

• The Journal of the Korea Contents Association
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• v.8 no.6
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• pp.98-110
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• 2008

Local cable channels has been contributing to settlement of grass root democracy and local business facilitation in decentralization era compared to other broadcasting media, and duly performs its role as local-tied media and produces local closeness type programs. But this is the time of need for change of perception by the producers, business entrepreneurs and relevant organizations on various production environment following process of conversion to digital cable TV. For successful settlement of local digital cable channels, this study has forecasted change on broadcasting production and organization following conversion of digital cable TV through the in-depth interview with people who produce and organize actual programs, and factors that interfere with digital cable TV conversion. Furthermore, the study learned plans to establish role and function of local cable channel as new close media to realize local value.

• The Journal of the Korea Contents Association
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• v.17 no.8
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• pp.80-89
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• 2017

Television viewing affects viewers' attitudes and opinions on their political issues. Since the beginning of General Programming TV services in 2011, they are criticized of their politically biased programming. In order to investigate the effect of General Programming TV on voters' behavior, we analyzed whether or not there is a change in the voting behavior of the conservative parties among the areas with high and low TV ratings of general programming TV. Based on the result of 18th presidential election in December 2012, we could not find any difference in voting behavior on the Saenuri party among the areas with high and low ratings of general programming TV channels. However, in the 6th provincial election in June 2014, while the voting shares of the Saenuri party were higher in the areas with high ratings of TV Chosun, Channel A, and JTBC than in those areas with low ratings.

• Proceedings of the KSRS Conference
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• 2007.03a
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• pp.267-270
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• 2007

눈은 지표면의 물리과정에서 중요한 요소 중의 하나로 짧은 시간 동안에 많은 변화를 유도할 있다. 본 연구에 MODIS 채널자료를 이용하여 적설역에서 나타나는 단파적외 채널과 반사도 특성을 알아보았다 일반적으로 MODIS 위성자료를 이용한 적설연구는 근적외 채널을 활용한 NOSI (Normalized Difference of Snow Index)를 주로 사용한다. 하지만 본 연구는 정지기상 위성의 적셜 탐지 능력을 시험하기 위한 연구이다. 따라서 정지 기상 위성 탑재되어 있는 채널의 특성과 비슷한MODIS 가시 채널과 단파 적외 채널 자료를 이용하여 적설지역을 분석하였다단일 가시 채널을 이용하여 적설을 탐지 하는 것은 청천역일 경우 큰 어려움이 없으나 반면 구름과 적설이 혼재되어 있는 지역에서는 탐지 능력이 떨어진다.반면 BID 값을 활용한 적설지역 탐지는 단일 가시 채널을 활용한 방법보다 좋은 결과를 가지지만 하층운이 존재할 때는 여전히 적설과 구름을 명확히 구분하기는 어렵다.

• Korean journal of communication and information
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• v.54
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• pp.58-75
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• 2011

This study explores the management of cable local channel and its related issue of renewed license. Programming of the local channel is the special obligation duty on the cable system operators(SO) under the article 70 (3) of the Broadcast Act. The law provides that SO should operate a local channel which produce, program and transmit the local information, a broadcast program guide and the official announcement items etc. under the conditions as prescribed by Presidential Decree. And the article 55 of the Enforcement Decree defines the scope of broadcast program which transmit through the local channels. And the Korea Communications Commission(KCC) grants a renewed licence 3-5 years based on the level of contribution to the development of local community under the article 31 of the Broadcasting Act and the Rules of Broadcast Evaluation. However, the management of local channel does not give the operators real benefit for the investment of a significant cost, and it could be a reason why the local channel programming has not been vitalizing despite of the legal coercion. To solve the several research questions, this study used in-depth interviews with the experts concerned and literature review for the government documents. The result shows that each SO local channel schedule almost 24 hour a day, but much of them is the repeat programming. In addition to that, the outcome reveals that the scale of the cost investment on the local channel is decreasing and the evaluation score of its management is not so positive figures. These result indicates that the policy of the cable local channel needs revised policy alternatives or paradigm on the basis of realistic goals.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.24 no.7
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• pp.694-700
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• 2013

Urban area is a representative environment of wireless channels in the mobile communication, building density has a different distribution depending on the location. Building density has affect to propagation prediction For this reason, building density is expected to affect to the channel characteristics, we need to analyze it. We measured channel characteristics in urban areas of Jeju island by channel sounder and $4{\times}4$ antenna. Channel characteristics considering the building density were derived based on the measured data in the urban area. In this paper, the measurement data is analyzed and channel characteristics are derived through MIMO Channel measurements at 700 MHz considering the building density in the urban area.

• Journal of the Korean Institute of Telematics and Electronics
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• v.26 no.6
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• pp.38-47
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• 1989

A purely analytical model for HEMT's based on a two dimensional charge control simul-ation[4] is proposed. In this model proper treatment of diffusion effect of electron transport along a 2-DEG (two dimensional electron gas) channel is perfoemed. This diffusion effect is shown to effectively increase the bulk mibility and threshold voltage of the I-V curves compared to the existing models. The channel thickness and gate capacitance are expressed as functions of gate voltages covering subthreshold characteristics of HEMT's analytically. By introducing the finite channel opening and an effiective channel-length modulation, the solpe of the saturation region of the I-V curves ws modeled. The smooth transition of the I-V curves at linear-to-saturation regions of the I-V curves was possible using the continuous Troffimenkoff-type of field dependent mobility. Furthermore, a correction factor f was introduced to account for the finite transition section forming between a GCA and a saturated section. This factor removes large discrepancies in the saturation region of the I-V curve predicted by existing l-dimensional models.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.46 no.6
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• pp.48-55
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• 2009

The feedback interference channels are those made through the multipaths that are built by moving and stationary objects around transmit and receive antennas mounted at the same point. This paper describes the method to measure the feedback interference channels in the rural regions and sides of highways and the analysis on channel characteristic parameters. Using the measured samples, we estimated scattering functions, delay power spectra, and Doppler power spectra, and we analyzed the channels using eight parameters including coherence bandwidth, coherence time, maximum excess delay, average excess delay, rms delay spread, Doppler shift, Doppler spread, and spread factor, and delay and Doppler cumulative distributions. Even though many observations are made, note that the feedback signals of high Doppler frequencies and large energy are observed in the sides of highways due to high speed vehicles while low Doppler frequencies occurred in the rural region due to rare traffic.