• Title/Summary/Keyword: Voice Processing

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A Study on Kidney Diseases Diagnosis System for Sensation Type Using Physiological Signal Analysis (생체 신호 분석을 이용한 감각형 신장 질환 진단 시스템 연구)

  • Cho, Dong-Uk;Kim, Bong-Hyun;Lee, Se-Hwan
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.31 no.10C
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    • pp.964-972
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    • 2006
  • The kidney keeps with close relationship in the internal organs, that the kidney function filtering eliminate the wastes to the urine on the processing to replace the old with the new blood. In case of these problem in the kidney, there is no way to catch out with self-awakening symptom except for serious illness. This problem can solve with keeping the systematic diagnosis method in the kidney trouble shooting. Under the circumstances, the importance of the diagnosis for the kidney disease is growing day after day. In this paper, among the great four diagnosises, using the way of ocular inspection & auscultation, we would like to propose rouble shooting in the way of the kidney. To do this, through the assistance of the input image, extract the value of the color with appropriate output, analysing the color of the face with related to the kidney, using the results we would like to get the accurate symptoms on the kidney's problems. Also, through analysing and comparing with the relationship the kidney and the signal of voice, we would like to realize the proof system of human health. Finally, we'd like to make proof of the usefulness for proposed method from this study.

Recognition Process and Effects of Fragrance(aroma) in Oriental Medicine (한의학에서 바라본 향의 인지 과정과 인체 작용)

  • Uhm, Ji-Tae;Kim, Kyoung-Shin;Kim, Byoung-Soo
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.24 no.6
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    • pp.935-941
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    • 2010
  • Fragrance(aroma) have many effects on body. Recently, aromatherapy was used to treat dementia, atopicdermatitis, alopecia areata, perineal disease, lymphatichydrops, and articularrheumatism. And people are interested in physical and mental effects of aroma, especially in mental. People empirically have been known the effects of aroma on soul and used aroma in life from long ago. They have had a meditation and had a sacrificial rites burning incense. Scholars also burned incense when reading books or tasting tea. Until now, there is no physiological study about recognition process and effects of aroma on body, but only many clinical studies using aromatherapy. Fragrance(aroma) is different from smell and good flavors of herbs. And it goes through nose and has effects on body in harmony on So-mun(素問). Also flavors of herbs are spreaded ki of herbs and have many effects on body. Aroma coming through the nose is recognized by co-operation of five-viscera(五臟), especially heart and lung. The nose and pectoral qi(宗氣) are related with lung. The lung opens into the nose, reflect its physiological and pathological conditions. Pectoral qi(宗氣) is the combination of the essential qi derived from food with the air inhaled, stored in the chest, and serving as the dynamic force of blood circulation, respiration, voice, and bodily movements. Because of the heart-spirit(心神), Heart is the organ can recognize the aroma, although the nose is the first organ of receiving aroma. Five spirits(五神: ethereal soul(魂), spirit(神), ideation(意), corporeal soul(魄), will(志)) and seven emotions(七情: joy(喜), anger(怒), anxiety(憂), thought(思), sorrow(悲), fear(恐), fright(驚)) are rerated with five-viscera(五臟) and essence-spirit (精神) processing steps and express of emotions. And aroma effects on five-viscera(五臟). So aroma have many effects on body, especially mentally.

A SVM-based Spam Filtering System for Short Message Service (SMS) (휴대폰 SMS를 위한 SVM 기반의 스팸 필터링 시스템)

  • Joe, In-Whee;Shim, Hye-Taek
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.34 no.9B
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    • pp.908-913
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    • 2009
  • Mobile phones became important household appliance that cannot be without in our daily lives. And the short messaging service (SMS) in these mobile phones is 1.5 to 2 times more than the voice service. However, the spam filtering functions installed in mobile phones take a method to receive specific number patterns or words and recognize spam messages when those numbers or words are present. However, this method cannot properly filters various types of spam messages currently dispatched. This paper proposes a more powerful and more adaptive spam filtering system using SVM and thesaurus. The system went through a process of isolating words from sample data through pro-processing device and integrating meanings of isolated words using a thesaurus. Then it generated characteristics of integrated words through the chi-square statistics and studied the characteristics. The proposed system is realized in a Window environment and the performance is confirmed through experiments.

Implementation of SIP-based Extended Caller Preference in VoIP System (VoIP 시스템에서의 SIP 기반의 확장된 Caller Preference 구현)

  • 조현규;장춘서
    • The Journal of the Korea Contents Association
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    • v.4 no.2
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    • pp.43-49
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    • 2004
  • SIP Caller Preference is an useful function that allows a caller to express preferences about request handling in servers. It can also feat appropriate call processing according to the callee capabilities. However, only the category of the media is considered as a criteria for target selection in the caller preference. In this case, if the callee's media information such as codec is different from the caller, an additional re­negotiation occurs for SIP call setup. Therefore, in this paper, we have suggested an extended caller preference to solve this problem. In our SIP based VoIP system, a network sewer uses detailed media informations for media stream in the session to select the target for SIP call setup. The sewer gives higher priority to the candidate which do not require re-negotiation for call setup, so that an effective call setup can be achieved in our system.

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Development of Bluetooth Protocol Stack on Embedded System (임베디드 시스템 상에서 블루투스 프로토콜 스택 개발)

  • Lee, Sang-Hak;Chung, Tae-Choong
    • The KIPS Transactions:PartA
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    • v.11A no.2
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    • pp.123-128
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    • 2004
  • Recent advancement in RF technology and wireless communications has enabled the development of noble networks. Bluetooth that can be used in various application field is a kind of WPAN(Wireless Personal Area Network) standard that is widely known. Bluetooth enables voice and data applications to operate simultaneously. Various applications have been implemented based on standard Profiles. In this paper, we describes the development of Biuetooth network AP(Access Point) system for network connection of Bluetooth devices. Unlike headset, mouse, and keyboard, the access point should have capability to support multiple connection and stabilized network throughput. We have designed and developed the hardware system, core stack and profiles on embedded system to comply with standard specification. Our system showed compatibility and good protocol performance through testing with lots of products that is available in market.

Efficient Source Authentication Protocol for IPTV Based on Hash Tree Scheme (해쉬 트리 기반의 효율적인 IPTV 소스 인증 프로토콜)

  • Shin, Ki-Eun;Choi, Hyoung-Kee
    • The KIPS Transactions:PartC
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    • v.16C no.1
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    • pp.21-26
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    • 2009
  • Presently, the demand for IPTV, to satisfy a variety of goals, is exploding. IPTV is coming into the spotlight as a killer application in upcoming IP convergence networks such as triple play which is the delivery of voice, internet, and video service to a subscriber. IPTV utilizes CAS, which controls the subscriber access to content for a profit. Although the current CAS scheme provides access control via subscriber authentication, there is no authentication scheme for the content transmitted from service providers. Thus, there is a vulnerability of security, through which an adversary can forge content between the service provider and subscribers and distribute malicious content to subscribers. In this paper, based on a hash tree scheme, we proposed efficient and strong source authentication protocols which remove the vulnerability of the current IPTV system. We also evaluate our protocol from a view of IPTV requirements.

A Study on the Removal of Impulse Noiseusing Wavelet Transform Pair and Adaptive-Length Median filter (웨이브렛 변환쌍과 적응-길이 메디안 필터를 이용한 임펄스 노이즈 제거에 관한 연구)

  • 배상범;김남호
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.7 no.7
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    • pp.1575-1581
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    • 2003
  • As a society has progressed rapidly toward a highly advanced digital information age, a multimedia communication service for acquisition, transmission and storage of image data as well as voice has being commercialized externally and internally. However, in the process of digitalization or transmission of data, noise is generated by several causes, and researches for eliminating those noises have been continued until now. There were the existing FFT(fast fourier transform) and STFT(short time fourier transform) for removing noise but it's impossible to know information about time and time-frequency localization capabilities has conflictive relationship. Therefore, for overcoming these limits, wavelet transform which is presented as a new technique of signal processing field is being applied in many fields recently. Because it has time-frequency localization capabilities it's Possible for multiresolution analysis as well as easy to analyze various signal. And when two wavelet base were designed to form Hilbert transform pair, wavelet pair provide superior performance than the existing DWT(discrete wavelet transform) in data characteristic detection. Therefore in this parer, we removed impulse noise by using adaptive-length median filter and two dyadic wavelet base which is designed by truncated coefficient vector.

Design of Context-Aware Module for Convergence Service Enabler in BcN Environment (BcN 환경에서 서비스 컨버전스 Enabler를 위한 상황인지 모듈 설계)

  • Jeong, Jong-Myung;Kim, Ji-Ho;Song, Oh-Young
    • The KIPS Transactions:PartC
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    • v.16C no.2
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    • pp.275-284
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    • 2009
  • Fast development of network technology and digitalization of various kinds of information are accelerating the convergence of between them. Accordingly, an environment for integrated service is needed, where users can be provided with various kinds of information such as voice, video, and text, using even different kinds of devices in heterogeneous networks for communication and broadcasting. In general, enablers integrate several functions to provide with various services in application layer based on IMS in BcN including even different kinds of networks. But in order to receiving convergence services, we must reason the environment of the user through the profiles of the networks and the devices and provide a suitable service to the user. In this paper, we will propose an efficient architecture and functions of a context-aware module which decides the appropriate services based on the profiles in the IMS enabler and its convergence service environments.

SePH: Seamless Proxy-based Handoff Scheme in IP-based Heterogeneous Mobile Networks (이기종의 모바일 IP 네트워크에서 끊김없는 프록시 기반의 핸드오프 기법)

  • Lee, Seung-Hyun;Shin, Dong-Ryeol;Jeong, Jong-Pil
    • The KIPS Transactions:PartC
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    • v.19C no.1
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    • pp.71-82
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    • 2012
  • In Next Generation Wireless Networks (NGWN), lots of information, such as voice and video data, will be used in All-IP networks. It is important note that seamless service for users and handoff between heterogeneous networks must be taken into account in such environments. Therefore, in this paper, we propose a SePH(Seamless Proxy based Handoff) using PMIPv6-based proxy model which is enable to improve the performance of handoff in NGWN. The SePH can efficiently support seamless and IP-based mobility by reducing the search process. The performance results show that our proposed scheme outperforms in terms of QoS (Quality of Service) such as throughput, handoff latency, packet loss, and signaling overhead comparing to the existing schemes.

Design and Implementation of an IP-based Fixed VoIP Emergency System (IP-기반 고정형 VoIP 긴급통화 시스템 설계 및 구현)

  • Ko, Sang-Ki;Chon, Ji-Hun;Choi, Sun-Wan;Kang, Shin-Gak;Huh, Mi-Young
    • The KIPS Transactions:PartC
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    • v.15C no.4
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    • pp.245-252
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    • 2008
  • An emergency service over Voice over IP (VoIP) network is an essential condition, like the existing telecommunication services. To support for the emergency services, standardization works have been performed. The National Emergency Number Association (NENA) has been developing the framework and procedures for an emergency service for Non-IP based network, rather than protocols. In contrast, the Internet Engineering Task Force (IETF) has been only focused on end-to-end IP-based emergency calls. The NENA architecture is incompatible with the IETF protocols. To solve the problem, we design and implement a SIP-based VoIP emergency system by adopting the NENA architecture and by applying IETF protocols, for both IP-based Pubic Safety Answering Point (PSAP) and PSTN-based PSAP. It is implemented and tested under UNIX environment.