Transient Mean and Variance of Phase Error of the First-Order Phase-Locked Loop. - C. K. Un (IEEE Trans. Commun., 1974)

The Residual-Excited Linear Prediction Vocoder with Transmission Rate Below 9.6 kbits/s. - Chong Kwan Un; D. Thomas Magill (IEEE Trans. Commun., 1975)

A Low-Rate Digital Formant Vocoder. - Chong Kwan Un (IEEE Trans. Commun., 1978)

On pole-zero modeling of speech. - Kil Ho Song; Chong Kwan Un (ICASSP, 1980)

A 4800 bps LPC vocoder with improved excitation. - Chong Kwan Un; Wonyong Sung (ICASSP, 1980)

Quantization Noise in Adaptive Delta Modulation Systems. - Hwang Soo Lee; Chong Kwan Un (IEEE Trans. Commun., 1980)

A Study of the Comparative Performance of Adaptive Delta Modulation Systems. - Chong Kwan Un; Hwang Soo Lee (IEEE Trans. Commun., 1980)

Improving LPC analysis of noisy speech by autocorrelation subtraction method. - Chong Kwan Un; K. Y. Choi (ICASSP, 1981)

A Performance Study of Delta Modulation Systems for Voiceband Data Signals. - Yong-Hwan Lee; Chong Kwan Un (IEEE Trans. Commun., 1981)

Hybrid Companding Delta Modulation. - Chong Kwan Un; Hwang Soo Lee; Joo Seok Song (IEEE Trans. Commun., 1981)

Pole-zero modeling of noisy speech and its application to vocoding. - Kil Ho Song; Chong Kwan Un (ICASSP, 1982)

On spectral flattening techniques in residual-excited linear prediction vocoding. - Chong Kwan Un; Jong Rak Lee (ICASSP, 1982)

Performance Analysis of Digital Tanlock Loop. - Jae Chon Lee; Chong Kwan Un (IEEE Trans. Commun., 1982)

Hybrid Companding Delta Modulation with Variable-Rate Sampling. - Chong Kwan Un; Dong-Ho Cho (IEEE Trans. Commun., 1982)

Implementation of a Multirate Speech Digitizer. - Byung Suk Lee; Chong Kwan Un; Hyeong-Ho Lee; Byoung Cheol Shin; Hwang Soo Lee (IEEE Trans. Commun., 1983)

Implementation of a Two-Channel LPC Vocoder. - Byoung Cheol Shin; Hyeong-Ho Lee; Chong Kwan Un; Sang Zee Lee; Kil Ho Song (IEEE Trans. Commun., 1983)

Performance Analysis of FIR ADM Digital Filters. - J. S. Sunwoo; C. K. Un (IEEE Trans. Commun., 1983)

On the convergence behaviour of frequency-domain LMS adaptive digital filters. - Jae Chon Lee; Chong Kwan Un (ICASSP, 1984)

A performance comparison of pitch extraction algorithms for noisy speech. - Kyong-Ae Oh; Chong Kwan Un (ICASSP, 1984)

A 9600 Bit/s RELP Vocoder With Split-Band Coding. - Chong Kwan Un; Jong Rak Lee (ICC (3), 1984)

Two-Dimensional FIR ADM Digital Filters. - Gi Hong Im; Chong Kwan Un (IEEE Trans. Commun., 1984)

Adaptive digital filtering of differentially coded signals. - J. W. Lee; C. K. Un; J. C. Lee (ICASSP, 1985)

A frequency-weighted block LMS algorithm and its application to speech processing. - J. C. Lee; C. K. Un; Dong-Ho Cho (Proc. IEEE, 1985)

A simple method for MSK modulation and demodulation. - S. M. Ryu; C. K. Un (Proc. IEEE, 1985)

The N-Phase Digital Tanlock Loop for Tracking Suppressed-Carrier N-ary PSK Signals. - Hwa Kim; Chong Kwan Un; Jae Chon Lee (IEEE Trans. Commun., 1985)

On Improving the Performance of an FIR ADM Digital Filter. - Y. C. Kye; H. J. Cho; Chong Kwan Un (IEEE Trans. Commun., 1985)

On the Performance of Speech Waveform Coders with Noise Spectral Shaping. - Hwang Soo Lee; Chong Kwan Un (IEEE Trans. Commun., 1985)

Performance Analysis of Statistical Voice/Data Multiplexing Systems with Voice Storage. - Hyeong Lee; Chong Kwan Un (IEEE Trans. Commun., 1985)

Performance Analysis of PCM/ADPCM Transcoding Systems. - Jin-Ick Lee; Chong Kwan Un (IEEE Trans. Commun., 1985)

Enhancement of noisy speech by forward/Backward adaptive digital filtering. - J. W. Kim; C. K. Un (ICASSP, 1986)

Isolated word recognition based on finite-state vector quantization. - Won Sik Youn; C. K. Un (ICASSP, 1986)

Variable-rate ADM with Efficient Residual Coding for Packet Voice Transmission. - Dong-Ho Cho; Chong Kwan Un (ICC, 1986)

Voice Transmission Through the Code Division Multiple Access Local Area Network. - Jong Rak Lee; Chong Kwan Un (ICC, 1986)

On reducing computational complexity in connected digit recognition by the frame labeling method. - H. J. Cho; C. K. Un (Proc. IEEE, 1986)

Performance Analysis of a Quasi-M/D/1 Cut-Through Switching Network with Noisy Channels. - Byung Chul Shin; Chong Kwan Un (IEEE Trans. Commun., 1986)

On improving the performance of a digital tanlock loop. - W. D. Cho; C. K. Un (Proc. IEEE, 1987)

A reduced structure of the passband fractionally spaced equalizer. - Gi Hong Im; C. K. Un (Proc. IEEE, 1987)

An efficient multiplexing technique for packet-switched voice/data networks. - Jun Kyun Choi; C. K. Un (Proc. IEEE, 1988)

Performance analysis of a voice/data multiplexer based on Markov renewal process modelling. - C. K. Jeong; C. K. Un (Proc. IEEE, 1988)

On the convergence speed of nonlinear least-squares IIR adaptive filter. - H. J. Kim; C. K. Un (Proc. IEEE, 1988)

Fast sequential least squares design of FIR filters with linear phase. - J. S. Sunwoo; C. K. Un (Proc. IEEE, 1988)

On acknowledgement schemes of sliding window flow control. - Jun-Kyun Choi; Chong Kwan Un (IEEE Trans. Commun., 1989)

Performance of a class of adaptive data-driven echo cancellers. - Gi Hong Im; Chong Kwan Un; Jae Chon Lee (IEEE Trans. Commun., 1989)

An efficient viterbi scoring architecture for HMM-based isolated word recognition systems. - Jin Yul Kim; Yun-Seok Cho; Soon Young Yoon; Hwang Soo Lee; Chong Kwan Un (ICSLP, 1990)

Generalized training of hidden Markov model parameters for speech recognition. - Nam Soo Kim; Chong Kwan Un (ICSLP, 1990)

Speech recognition method based on the dual processing nature of speech perception. - Hyung Soon Kim; Chong Kwan Un (ICSLP, 1990)

A comparative study of speaker adaptation methods for HMM-based speech recognition. - Myoung-Wan Koo; Chong Kwan Un; Hwang Soo Lee; Jun Mo Koo; H. R. Kim (ICSLP, 1990)

A recognition time reduction algorithm for large-vocabulary speech recognition. - Jun Mo Koo; Chong Kwan Un; Hwang Soo Lee; H. R. Kim; Myoung-Wan Koo (ICSLP, 1990)

A low rate VQ speech coding algorithm with variable transmission frame length. - Sung Ro Lee; Hwang Soo Lee; Chong Kwan Un (ICSLP, 1990)

Delay Analysis of the ISDN D-Channel Access Protocol. - Goo Yeon Lee; Chong Kwan Un (Comput. Networks ISDN Syst., 1990)

Performance analysis of a packet-switched synchronous voice/data transmission system. - Jun Kyun Choi; Jung Uck Seo; Chong Kwan Un (IEEE Trans. Commun., 1990)

On reducing computational complexity of codebook search in CELP coding. - J. I. Lee; C. K. Un (IEEE Trans. Commun., 1990)

Unslotted CSMA-CD Protocols with Combined Retransmission Strategy for Fiber Optic Bus and Ring Networks. - Chong Ho Yoon; Chong Kwan Un (Comput. Networks ISDN Syst., 1991)

Performance Analysis of an Integrated Voice / Data Cut-Through Switching Network. - Y. S. Youn; Chong Kwan Un (Comput. Networks ISDN Syst., 1991)

Fast initialization procedure of the alternating projection algorithm for maximum likelihood localization of multiple sources. - Seong Keun Oh; Chong Kwan Un (Signal Process., 1991)

Parallel modified spatial smoothing algorithm for coherent interference cancellation. - Sun Park; Chong Kwan Un (Signal Process., 1991)

Recursive modified Gram-Schmidt algorithm for linear phase filtering. - J. S. Sunwoo; C. K. Un (Signal Process., 1991)

Dual RLS lattice joint process estimation algorithm for a time-varying ARMA speech model. - B. K. Lim; C. K. Un (Speech Commun., 1991)

Window flow control with error-checking scheme in quasi-cut-through switching network with noisy channels. - Young-Jong Cho; Chong Kwan Un (IEEE Trans. Commun., 1991)

An improved VQ codebook design algorithm for HMM. - Jun Mo Koo; Hwang Soo Lee; C. K. Un (ICASSP, 1992)

Performance Analysis of a Multichannel Local Lightwave Network with Grouping Property. - Sea Hyeon Nam; Chong Kwan Un (INFOCOM, 1992)

A speaker adaptation based on corrective training and learning vector quantization. - Myoung-Wan Koo; Chong Kwan Un (ICSLP, 1992)

Performance Analysis of Leaky-Bucket Bandwidth Enforcement Strategy for Bursty Traffics in an ATM Network. - Young Han Kim; Byung Chul Shin; Chong Kwan Un (Comput. Networks ISDN Syst., 1992)

Performance Analysis of Broadcast Star Network with Collision-Avoidance Switch. - Sea Hyeon Nam; Chong Kwan Un (Comput. Networks ISDN Syst., 1992)

Analysis of voice/data multiplexers with ARQ scheme, based on a Markov renewal process modelling. - C. K. Jeong; C. K. Un (Comput. Commun., 1992)

Performance of constant modulus adaptive digital filters for interference cancellation. - O. W. Kwon; C. K. Un; J. C. Lee (Signal Process., 1992)

A recognition time reduction algorithm for large-vocabulary speech recognition. - Jun Mo Koo; Chong Kwan Un (Speech Commun., 1992)

Analysis of throughput and delay of a high-speed slotted ring based on lumped modeling. - W. Y. Jung; C. K. Un (IEEE Trans. Commun., 1992)

Throughput analysis for two ARQ schemes using combined transition matrix. - S. R. Kim; C. K. Un (IEEE Trans. Commun., 1992)

An adaptive array robust to beam pointing error. - J. W. Kim; C. K. Un (IEEE Trans. Signal Process., 1992)

Simple computational methods of the AP algorithm for maximum likelihood localization of multiple radiating sources. - Seong Keun Oh; Chong Kwan Un (IEEE Trans. Signal Process., 1992)

Probabilistic reservation protocol for high-speed unidirectional bus networks. - Hong-Bum Jeon; Byung-Choel Shin; C. K. Un (Comput. Commun., 1993)

Performance of Personal Portable Radio Telephone Systems with and without Guard Channels. - Chong Ho Yoon; Chong Kwan Un (IEEE J. Sel. Areas Commun., 1993)

Fast adaptive beamforming robust to array imperfections. - Won Sik Youn; Chong Kwan Un (Signal Process., 1993)

Pole-zero modeling of speech using fast transversal filtering algorithm. - B. J. Min; C. K. Un (Speech Commun., 1993)

Analysis of the M/G/1 queue under a combined preemptive/nonpreemptive priority discipline. - You Ze Cho; Chong Kwan Un (IEEE Trans. Commun., 1993)

Analysis of bandwidth allocation strategies with access restrictions in broadband ISDN. - Young Han Kim; Chong Kwan Un (IEEE Trans. Commun., 1993)

Performance of the prioritized random token protocol for high-speed and ratio networks. - Dong Soo Park; Chong Kwan Un (IEEE Trans. Commun., 1993)

Design and performance analysis of an asynchronous non-blocking switch with window policy. - Goo Yeon Lee; Chong Kwan Un (Telecommun. Syst., 1993)

A robust adaptive array based on signal subspace approach. - J. W. Kim; C. K. Un (IEEE Trans. Signal Process., 1993)

A Sequential Estimation Approach for Performance Improvement of Eigenstructure-Based Methods in Array Processing. - Seong Keun Oh; Chong Kwan Un (IEEE Trans. Signal Process., 1993)

A linearly constrained beamforming robust to array imperfections. - Won Sik Youn; Chong Kwan Un (IEEE Trans. Signal Process., 1993)

Performance Analysis of Reconstruction Algorithms for Packet Voice Communications. - Young-Jong Cho; Chong Kwan Un (Comput. Networks ISDN Syst., 1994)

Performance Analysis of Packet Switches with Input and Output Buffers. - Chan Jung Youn; Chong Kwan Un (Comput. Networks ISDN Syst., 1994)

Analysis of delay bounds of a tree protocol with collision detection. - W. S. Chung; C. K. Un; Byung-Choel Shin (Comput. Commun., 1994)

A Korean Large Vocabulary Speech Recognition System for Automatic Telephone Number Query Service. - Jun Mo Koo; Hyung Soon Kim; Chong Kwan Un (Int. J. Pattern Recognit. Artif. Intell., 1994)

Performance Analysis of Markovian Polling Systems with Single Buffers. - Hae Chung; Chong Kwan Un; Woo Young Jung (Perform. Evaluation, 1994)

A fast transversal filtering algorithm for pole-zero modeling. - B. J. Min; C. K. Un (Signal Process., 1994)

Modeling and analysis of a tandem link connection under the burst-error condition. - Young-Jong Cho; Chong Kwan Un (IEEE Trans. Commun., 1994)

Performance analysis of ARQ error controls under Markovian block error pattern. - Young-Jong Cho; Chong Kwan Un (IEEE Trans. Commun., 1994)

Analysis of a finite-buffer polling system with exhaustive service based on virtual buffering. - Woo Young Jung; Chong Kwan Un (IEEE Trans. Commun., 1994)

Performance analysis of statistical multiplexing for heterogeneous bursty traffic in an ATM network. - Young Han Kim; Chong Kwan Un (IEEE Trans. Commun., 1994)

Performance analysis of broadcast star network with priorities. - Sea Hyeon Nam; Chong Kwan Un (IEEE Trans. Commun., 1994)

Unslotted 1- and pi-persistent CSMA-CD protocols for fiber optic bus networks. - Chong Ho Yoon; Chong Kwan Un (IEEE Trans. Commun., 1994)

Robust adaptive beamforming based on the eigenstructure method. - Won Sik Youn; Chong Kwan Un (IEEE Trans. Signal Process., 1994)

Capacity of wireless dynamic TDMA and media access control for packetized voice/data integration. - Byung-Chul Kim; Chong Kwan Un (Wirel. Pers. Commun., 1994)

Asynchronous reservation protocol for variable-sized messages in a WDM-based local network. - Jae Hwoon Lee; Chong Kwan Un (Comput. Commun., 1995)

An optimum block adaptive algorithm based on the nested iteration technique. - Jaesung Lim 001; Chul Heum Yon; Chong Kwan Un (Signal Process., 1995)

Improving the adaptive source model for CELP coding with long analysis frame size. - Chul Hong Kwon; Chong Kwan Un (Speech Commun., 1995)

On estimating robust probability distribution in HMM-based speech recognition. - Nam Soo Kim; Chong Kwan Un (IEEE Trans. Speech Audio Process., 1995)

Contention-based reservation protocols in multiwavelength optical networks with a passive star topology. - Hong Beom Jeon; Chong Kwan Un (IEEE Trans. Commun., 1995)

Banyan multipath self-routing ATM switches with shared buffer type switch elements. - Youn Chan Jung; Chong Kwan Un (IEEE Trans. Commun., 1995)

Performance analysis of bandwidth allocation strategy with state-dependent Bernoulli access and preemptive priority in wideband integrated networks. - Do Kyu Kim; Chong Kwan Un (Telecommun. Syst., 1995)

UPC/NPC algorithm for guaranteed QoS in ATM networks. - Y. J. Kim; S. C. Chang; C. K. Un; Byung-Choel Shin (Comput. Commun., 1996)

Cell loss analysis of an ATM multiplexer with loss priority control for VBR bursty traffic. - Sang Won Min; Hae Chung; Chong Kwan Un (Comput. Commun., 1996)

Performance of dilated banyan network with back-pressure mechanism. - Young Sik Youn; Chong Kwan Un (Comput. Commun., 1996)

Performance of Contention Processing Schemes for WDM Networks with Control Channels. - Doo Seok Kim; Chong Kwan Un (Perform. Evaluation, 1996)

Performance Analysis of Cut-Through Buffered Banyan Networks with Finite Buffer Size. - S. Y. Young; Chong Kwan Un (Perform. Evaluation, 1996)

An optimum block adaptive shifting algorithm using the Toeplitz preconditioner. - J. S. Lim; K. K. Lee; C. K. Un (Signal Process., 1996)

Block conjugate gradient algorithms for adaptive filtering. - Jaesung Lim 001; Chong Kwan Un (Signal Process., 1996)

Multilayer perceptrons for state-dependent weightings of HMM likelihoods. - Yong-Joo Chung; Chong Kwan Un (Speech Commun., 1996)

A new parameter smoothing method in the hybrid TDNN/HMM architecture for speech recognition. - C. S. Jang; C. K. Un (Speech Commun., 1996)

Performance of HMM-based speech recognizers with discriminative state-weights. - O. W. Kwon; C. K. Un (Speech Commun., 1996)

An MLP/HMM hybrid model using nonlinear predictors. - Yong-Joo Chung; Chong Kwan Un (Speech Commun., 1996)

Discriminative weighting of HMM state-likelihoods using the GPD method. - O. W. Kwon; C. K. Un (IEEE Signal Process. Lett., 1996)

Word recognition by a parallel-branch subunit model based on misrecognized data in semi-continuous HMM. - Y. K. Park; C. K. Un (IEEE Signal Process. Lett., 1996)

On the generation and use of a parallel-branch subunit model in continuous HMM. - Y. K. Park; C. K. Un (IEEE Trans. Speech Audio Process., 1996)

Modeling acoustic transitions in speech by modified hidden Markov models with state duration and state duration-dependent observation probabilities. - Y. K. Park; C. K. Un; O. W. Kwon (IEEE Trans. Speech Audio Process., 1996)

Performance study of an input and output queueing ATM switch with a window scheme and a speed constraint. - Jin Seek Choi; Chong Kwan Un (Telecommun. Syst., 1996)

Performance of a burst admission control scheme based on prediction of cell losses. - S. W. Min; C. K. Un (Telecommun. Syst., 1996)

Low-rate CELP speech coding using an improved weighting function. - Chul Hong Kwon; Chong Kwan Un (ICASSP, 1997)

Model-based approach for robust speech recognition in noisy environements with multiple noise sources. - Do Yeong Kim; Nam Soo Kim; Chong Kwan Un (EUROSPEECH, 1997)

Performance Analysis of Two Fanout Splitting Schemes for a Multicast Packet Switch With Capacity M. - Y. L. Jae; Chong Kwan Un (Perform. Evaluation, 1997)

Performance Comparison of Nonpreemptive and Preemptive Priority Queueing Strategies in ATM Packet Switch with Input Buffers. - Jin Seek Choi; Kye Sang Lee; Chong Kwan Un (Perform. Evaluation, 1997)

Performance Analysis of Input Queue with Combination of Push-Out and State-Dependent Scheduling Schemes for Nonblocking ATM Switches. - Kye Sang Lee; Chong Kwan Un; Jae Yong Lee (Perform. Evaluation, 1997)

Frame-correlated hidden Markov model based on extended logarithmic pool. - Nam Soo Kim; Chong Kwan Un (IEEE Trans. Speech Audio Process., 1997)

Statistically reliable deleted interpolation. - Nam Soo Kim; Chong Kwan Un (IEEE Trans. Speech Audio Process., 1997)

Optimum block adaptive filtering algorithms using the preconditioning technique. - Jaesung Lim 001; Chong Kwan Un (IEEE Trans. Signal Process., 1997)

Performance Analysis of an Input Queueing ATM Switch with Two Priority Classes. - Jang Wong Lee; Jin Seek Choi; Chong Kwan Un (Perform. Evaluation, 1998)

Speech recognition in noisy environments using first-order vector Taylor series. - Do Yeong Kim; Chong Kwan Un; Nam Soo Kim (Speech Commun., 1998)

Deleted strategy for MMI-based HMM training. - Nam Soo Kim; Chong Kwan Un (IEEE Trans. Speech Audio Process., 1998)