This paper reports the relation between the syntactic structure of a sentence and the change of speech rate that specializes in the news speech, based on the relation between the syntactic structure of a sentence and F_0 pattern in the fundamental frequency contour generation model.

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It is useful to combine multi-speaker's speech database for concatenative speech synthesis system. This paper describes a perceptual study on naturalness and personality by exchanging a phoneme segment to other speaker's one in a word speech synthesis. The experimental result shows some phoneme sequences and speakers are available for the exchangement.

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We suggest a method for estimating the pitch of any single-tone signals, such as a voice and various instruments. Wavelet Transform can detect the reliable pitch in audio signals by the octave division. Experimental results show that our method is effective for estimating the pitch of real-world single-tone signals.

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As the characteristic of the sound of orchestral performance, a big differential of acoustic pressure is observed. Also, this differential of pressure can be presumed from the musical score performed. Therefore, we propose a system which tracks a musical score by matching the observed differential of acoustic pressure and the presumed differential of pressure.

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Characteristics of noise for TBM has been studied arid analyzed based on the frequency spectrum constructs. Using theoretical verifications, the noise characteristics of TBM signals have been clarified with correlations between a carrier to noise ratio and a signal to noise ratio which have been introduced by theoretical formulas.

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In digital broadcasting or networked broadcasting, broadcasters can get user information through network. Provider authentication is required to prevent leakage of such information to someone else. In this paper, we propose a provider authentication method with key leakage resilience and a content distribution system using this method.

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This study is personal identification used in 2D-3D system that pays attention to profile characteristic as an identification method to be strong in expression and change of aging. Personal identification used for characteristic of the profile is Fourier descriptors and edge characteristic.

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Thermosaic can provide mosaic effect to obscure human region automatically. It is useful for protecting privacy in live video sequences. However it sometimes fails in adding mosaic on the region of cold eye glasses. This paper proposes a method called dilation to solve this problem. This approach is very robust for the safer privacy protection.

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This paper studies low complexity video scrambling using the Inter-frame prediction feature of MPEG

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Manipulating the LSB of scalefactor draws attention as high speed watermark embedding method for MP3 audio. This paper proposes an adaptive selection method of LSB manipulation to minimize audio quality degradation.

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We propose a watermarking scheme for MPEG-2 video bvi stream that is robust to the change of DCT mode (frame or field).

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We propose a new digital watermarking method robust against printing and snapping. The method can extract watermarks from images obtained by camera-equipped cellular phone. In the method, watermarks are embedded using the inner product of DCT coefficients and a random sequence.

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In the watermark based on KL transform, a receiver can extract watermark information only using the received image. Therefore, the application to pursuit of the contents image which circulates a network will be expected On the other hand, there is a problem of diversion of the extracted watermark. In this paper, we propose on decoding of a watermark impossible to such a subject By this proposed method, both the encryption watermark and the structural change through multimedia communication channel are used. By embedding by the bw dumping factor for embedding, it becomes impossible distinguishing the watermark information extracted except the set-up threshold. This proposed method can solve an above-mentioned problem, holding the feature of decoding public algorithm which KL-type watermark has.

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In order to improve the discharge characteristics of the high-resolution AC PDP, the influence of permittivity of the dielectric layer was analyzed by 3-D simulation.

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We have developed a contour correction method using scaling technique to improve sharpness of images. This new method can detect contour areas in a image and steepen the changes in contour areas by executing local scaling of images in the contour area without giving unnatural overshoot or undershoot.

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The reflected light from color wheel causes a short lifetime of lamp with increased lamp bulb surface temperature responsible for devitrification in a single-chip DLP^<TM> projector. In this report we conduced to relationship between reflected light intensity and temperature change at lamp bulb by simulation and measurement.

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Blurring in moving areas in hold-type displays, such as LCDs, is analyzed by spatio-temporal sampling. It takes place through the post filtering for de-sampling caused by human eyes.

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In order to realize the wide viewing angle liquid crystal display (LCD), it is very important to solve the problem of the grayscale inversion. In this research, to examine the cause of the grayscale inversion, we analyzed the change of polarization state of light which passes through the LC cell by using the Poincare sphere method. We clarified the cause of the grayscale inversion and showed the design condition of the wide viewing angle LCD without grayscale inversion.

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We devised a new measurement method for the surface polar anchoring strength using a HAN cell. We measured the angle dependence of the phase difference and amplitude ratio in the direction perpendicular to the rubbing direction of HAN cells and discussed the relation between the polar anchoring strength of several alignment layers and the response property of VA-mode LC cells.

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We proposed a novel liquid crystal display mode (Nematic Compensated Birefringence mode: NCB-mode) using an electric field induced multi-domain ECB-mode LC cell and a vertical aligned polymerized discotic material (PDM) compensator. Optimization of both LC cell structure and PDM compensator realized a wide viewing angle range over 160deg and an extremely fast response time less than 5ms.

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Optically compensated bend (OCB) mode LCD requires initial transition from a splay to a bend alignment before operation. In this study, we successfully in creating a transition nucleus by forming twist disclination using three entire-surface rubbing treatments to a glass substrate with micro protuberance.

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Three viscosities γ_1, η_1 and η_2 are indispensable to analyze the response properties of liquid crystals when the directors are aligned in the plane of thickness direction of the cells. In this paper, we discuss a measurement method of these three viscosities for n-type liquid crystals.

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The surface order parameter can be measured by observing contact angle between the isotropic phase droplet and the polymer substrate at the nematic-isotropic phase transition temperature T_<NI>. We discuss the relationship between the surface order parameter and the droplet contact angle using a three-dimensional order parameter measurement through the infrared absorption and a birefringence measurement of liquid crystal on the polymer surface. Based on the result, a new model concerning formation of droplet contact angle is established.

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We measured the temperature dependence of the three viscosities of liquid crystals by using MVS-method. We compared the response time among three LC alignment modes (OCB, ECB, VA mode). It is clarified that OCB mode displays have high-speed response property in wide temperature range.

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We investigated molecular alignment behavior of fine polymers dispersed in ferroelectric liquid crystal (FLC) films using polarization Raman spectral microscopy. It was clarified that the polymers moved along with the FLC switching behavior under electric fields. This phenomenon is useful for improving threshold voltages of the FLC film.

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We have fabricated flexible OLED display by ink-jet printing. Highly efficient phosphorescent materials were used as the ink solutions. Molecular weights of the host polymer and solvents were optimized for the ink formulation. The emitting layer was accurately printed in each pixel, and a video image was clearly seen on the display panel.

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A bottom-contact organic TFT (OTFT)-driven 16×16 polymer-dispersed liquid crystal (PDLC) display panel on a flexible plastic film has been developed. The OTFT showed a carrier mobility of 0.3cm^2/Vs, a current on/off ratio of over 10^5, and a low operating drain voltage of -6V. We also successively confirmed display operation of the fabricated 16×16 display panel.

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This paper present a system configuration and its prototype system of the personal identification system based on facial isodensity maps. So far our identification method obtains an excellent result. However, there still remain some problems. Therefore, the examination concerning the interface and the restructuring of the system are also presented in this report.

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In this paper, watermarking algorithm used for improvement of identification accuracy of personal identification system is presented.

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Digital watermarking is mainly used for protecting the copyrights of digital contents. This paper propose a method for increasing identification accuracy by combining digital watermarking to an human face identification system.

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Construction of the personal identification system based on isodensity maps in which the properties of a face is well reflected has been proposed. By using the coded isodensity lines, the improvement of the processing performance can be expected in terms of the processing time and the memory size required. In this paper, a personal identification system for angled faces based on the chain coded isodensity maps is presented.

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Gender discrimination is presented. Before identification of person's area must be effectively isolated from the background. In this paper, image segmentation which will be applied for gender discrimination is presented.

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This paper describes a improved method for extracting facial parts used for face identification system to reduce processing time and the interface adopted in this system is presented.

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We have proposed a face detection algorithm using several templates. This algorithm not only detects various non-frontal faces but also increases detection errors. Therefore, we propose a new detection algorithm using similarity relation between several templates This algorithm can improve the precision of face detection and decrease detection errors.

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We fabricated an optical correlator called the FARCO based on Vanderlugt Correlation operating at the speed higher than 1000 faces/s. Using its rapid data processing capability, a robust recognition system can be constructed by registering three-dimensional face data. In this paper, we present the process of constructing a 3-D facial database set, employs laser-beam light sectioning technology to scan workpieces using a slit beam and show experimental results.

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Automatic recognition of facial expressions is seriously considered as an important subject for the man-machine interface. In this paper, a new algorithm to set the rectangular masks on the inclined faces and extraction of feature quantities from inclined faces is presented.

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To reduce processing time and improve matching accuracy detection of facial angle must necessarily be executed. In this paper, a method for estimating facial direction is presented.

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We present a new method for setting a threshold value on a quasi-chroma histogram to extract facial area based on the method used for forecasting stock market futures such as dead cross and golden cross.

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We were preparing the experiment systems for DTTB. And we are studying measurement methods for OFDM signals in SFN which some areas will receive same signals from more than one transmitter. In this paper we propose a new method to measure signals in SFN by using difference of frequency.

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We were preparing the experiment systems for DTTB using experiment. And we are studying a method of the gap filler system for DTTB network. In this paper we propose a new transmit method for OFDM system. It is using the space diversity that controlled by the propagation path characteristics with digital filters.

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For examination of fading on digital terrestrial television broadcasting signals, we measured a long-term level fluctuation of digital and analog television signals (UHF). The result shows that the fading of digital television signal is similar to that of analog television signal, in a condition of this propagation path.

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To establish an estimating method of the coverage of Digital Terrestrial Television Broadcasting for handheld reception, we examined the method for measuring the power of electric wave at 1.5m height, and we measured the power of electric wave of OFDM signal(UHF27ch) from Tokyo Tower using this method.

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We developed IF-TTL system for ISDB-T Small scale Broadcasting place. Target equivalence C/N that adopted one pilot method was assumed to be 40dB and the miniaturization of the equipment was achieved.

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We, Fuji television Network, inc, NTT Corporation and NTT Communications, succeeded in the joint experiment of non-compressing multiplex radio transmission using 120GHz millimeter wave. Below, the outline and consideration result of this experiment are shown.

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Amplitude modulated signal was generated by tandem adder combiner with large number of PA (Power Amplifier) in the medium wave digital processing radio transmitter. Our new failure detector can be identified with deterioration of modulated wave form and each PA on/off control timing.

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