2005Technical Report

1.A study on detecting telop from MPEG video

Makoto Kurahashi

Summary

For viewing a lot of video content ef ficiently , it is useful to segment each video program into several scenes automatically. An ef fective approach to achieve this requirement is using captions superimposed on video images as keys.
In this paper, we propose a method for detecting captions from MPEG videos by checking high frequency elements of DCT coefficients encoded in MPEG streams.

Click for Details (PDF 242 KB)
in Japanese

2.RemoteCastBB Server

Toshiyuki Amaya, Makoto Takanashi, Kazuhiro Miyamoto, Yasuhiko Watanabe

Summary

This paper describes the development of a RemoteCastBB Server system. The system is implemented on an Asset Management System called CyberLoft. Since the communication protocol between the server and terminals is based on V AAM+, RemoteCastBB Server is built on CyberLoft as a server platform. All signage data in the RemoteCastBB Server , displayed on each terminal, are managed as assets on CyberLoft platform, and logging data of each terminal, uploaded into the RemoteCastBB Server, are also managed as assets in almost the same mechanism as other signage data. The RemoteCastBB Server processes both Digital Signage management of assets and Digital Signage operations simulta-neously on the CyberLoft platform. The service performance of RemoteCastBB Server is also evaluated in this paper.

Click for Details (PDF 350 KB)
in Japanese

3.Development of digital broadcast recording and playing system via IEEE1394

Hitoshi Tsushima, Hirotaka Furuta, Yoshihiro Kumagai, Misako Fukuta, Kyoko Oishi, Shinya Sasatani, Hayato Watanabe, Tetsuaki Kawahara, Masaya Sano

Summary

This document describes features of digital broadcast recording and playback imple-mented on the DVD recorders "DVR-920H-S" and "DVR-720H-S". These recorders can record digital broadcast signals and play the recorded signal by connecting Pioneer's plasma display system via IEEE1394, and the "DVR-920H-S" can record digital high vision broadcast signal of about 36 hours to the built in 400Gbyte HDD. It also realizes to display a title list on the plasma display by creating and outputting BML script that describes the information about recorded titles.

Click for Details (PDF 246 KB)
in Japanese

4.Development of an algorithm to select images which the user prefers.

Kouzou Morita

Summary

An algorithm to select images which the user tends to prefer was developed. An I image viewing application using this algorithm was also developed and tested with pictures taken in daily life.

Click for Details (PDF 366 KB)
in Japanese

5.The development of a DVI optical serial link

Takayuki Akimoto, Manabu Nohara, Tomoaki Iwai, Yuusuke Soga, Hideyuki Ohkubo, Ryoji Noguchi, Koichi Ishitoya, Kiichiro Shinokura

Summary

Pioneer plasma television sets consist of a Media Receiver (MR) and a Plasma Display Panel (PDP) which are connected by metal cables. Our plasma television sets transmit visual data, audio data, and control signals. The DVI optical serial link, which has one Plastic Optical Fiber (POF) with two cores of length up to 30 meters, was developed to replace the metal cables.
This report describes the outline of the system along with a technical description.

Click for Details (PDF 154 KB)
in Japanese

6.A Method for Detecting Highlights of Music by Chord Progressions and Its Application to Embedded Systems

Shinichi Gayama

Summary

The author has proposed a method for detecting highlights of music by chord progres-sions and applied it to embedded systems. A highlight of music, known by the Japanese word "sabi", which is one of the more expressive parts in a piece of music, tends to appear more frequently than others. So it can be detected by means of identifying similar parts that appear repeatedly in the music, calculating the cross-correlation of partial chord progressions extracted from the waveform of music in advance.
The author has also succeeded in achieving the efficient calculation required of embedded systems, because chord-progressions are capable of representing similarity of music with little information. As a result of this implementation, although it had been difficult for previous methods to meet the above requirement, the proposed method can produce sufficient performance for practical use, and can detect highlights of 308 songs correctly among the 340 Japanese pops music used in the experiment.

Click for Details (PDF 130 KB)
in Japanese

7.The Information Technology System for the Number Four PDP line based on Java & .NET technology

Shigeru Kono, Masayuki Otsuka, Yuki Shimura, Toru Nonoguchi, Tatsuya Sawanobori, Yoshikazu Hirai

Summary

We designed and implemented a new Information Technology System based on con-temporary Java .NET technology for the Number Four line in our new PDP plant. Therefore, we have achieved the visualization of the panel production process and the traceability of quality information.

Click for Details (PDF 282 KB)
in Japanese

[General Paper]
Pioneer G3 Mechanism - 3rd Generation In-dash CD Changer for Automotive Applications

Susumu Yoshida, Yasuhiro Shinkai, Toru Suzuki, Takeshi Matsumoto, Morihiro Okamoto, Eiji Takahashi

Summary

The 3rd Generation in-dash changer mechanism from Pioneer,"The G3" offers:
・Industry Leading Compact Size - the smallest dimensions available
・25 % Cost Reduction over previous model
With these 2 significant competitive advantages, Pioneer aims to capture a greater share of the global market for in-dash changers.

Click for Details (PDF 654 KB)
in Japanese

[Introduction of Pioneer Group related R&D]
An Introduction to Pioneer Communications Corporation

Satoshi Kishimoto

Summary

As an associated company of the Pioneer Group, Pioneer Communications Corporation(PPC) is developing, manufacturing, and selling cordless telephones and answer-phones.
This document gives the outline of activities at PCC, the work done by each sections and the technol-ogy behind cordless telephones and answer-phones.

Click for Details (PDF 154 KB)
in Japanese

1.Development of BD-Type Write-Once Disk with Corn Starch Substrate and Pollutant-Free Materials

Yasuo Hosoda, Takanobu Higuchi, Noriyoshi Shida, Tetsuya Imai, Tetsuya Iida, Kazumi Kuriyama and Fumihiko Yokogawa

Summary

We realized an inorganic write-once disk for an optical recording system of the Blu-ray disk format. In this disk, we achieved complete exclusion of toxic substances specified in the pollutant release and transfer register (PRTR) law. In addition, we developed a corn-starch substrate, which was made of a natural polymer derived from corn-starch. On the write-once disk using the corn-starch substrate, the bottom jitter value was 6.0 % at the user capacity of 25.0 GB.

Click for Details (PDF 302 KB)
in Japanese

2.Electron beam mastering beyond 200 Gb/in2 density

Masahiro Katsumura, Yasuo Hosoda, Hiroaki Kitahara, Masaki Kobayashi, Megumi Sato, Osamu Kasono, Kazunobu Hashimoto, Tetsuya Iida, Kazumi Kuriyama and Fumihiko Yokogawa

Summary

In an electron beam recorder that has a capability to record beyond 200 Gbit/in2 density, the scattering of electrons deteriorates patterning resolution. Therefore control of electron scattering is important to realize density patterning beyond 200 Gbit/in2. Thus we adopted a new substrate, which is made of carbon that reduces the influence of the electron back scattering, and succeeded to record over 200 Gbit/in2 density.

Click for Details (PDF 485 KB)
in Japanese

3.High accuracy marker position detection of hologram memory

Michikazu Hashimoto, Kiyoshi Tateishi, Yoshimi Tomita

Summary

In the signal processing of a hologram memory system it is important to detect the recorded area accurately from the reproduction image. Template matching is a method of position detection, but it has insufficient accuracy. Therefore the estimation of the sub-pixel position after the template matching is required. We devised the method that estimates the sub-pixel position by the center of gravity of the correlation coefficient, and experimented with this. As a result, the sub-pixel position could be detected more accurately than a conventional method with few calculations.

Click for Details (PDF 326 KB)
in Japanese

4.Ultra high-density digital data storage by SNDM ferroelectric probe memory

Kenjiro Fujimoto, Hirokazu Takahashi, Takanori Maeda, Atsushi Onoe

Summary

Ferroelectric probe memory is expected as a candidate of next generation huge-capacity digital data storage system. In this paper we report quasi-digital data recording experiments to evaluate the realization of real data storage system. We also report the fabrication trial and evaluation of durable electro-conductive diamond probe head. Firstly, ferroelectric read/write experiments using congruent LiTaO3 single crystal media were performed using two different signal patterns. One was a pseudo DVD signal and the other was a dot-matrix signal which is suitable for higher density recording. The ferroelectric reproduction technique used in our experiments was based on the scanning nonlinear dielectric microscope (SNDM) technique. Secondly, Electro-conductive diamond probes were fabricated using micro electro mechanical systems (MEMS) processes. We confirmed that this probe could be used as a probe for the ferroelectric probe memory by actually doing record reproduction to the ferroelectric medium with it.

Click for Details (PDF 190 KB)
in Japanese

5.Fabrication of Blue/Red Two-Wavelength Laser Diodes using Laser Lift-Off Technique

Mamoru Miyachi , Yoshinori Kimura , Yasuhiro Mimura , Atsushi Onoe

Summary

An integrated two-wavelength laser diode (TWLD) which emits 405-nm-band and 650-nm-band laser beams from a single chip has been realized for the first time. The TWLD was fabricated by transferring a GaN-based laser diode (LD) onto an AlGaInP-based LD using a laser lift-off technique. Threshold currents in laser operations were 82 mA and 48 mA for the wavelengths of 405 nm and 652 nm, respectively. The GaN-based LD maintained its intrinsic property throughout the transfer onto the AlGaInP-based LD. The distance between two emission spots was approximately 3 µm. Such a close spot distance allows the optical components of the pickup to be substantially simplified.

Click for Details (PDF 178 KB)
in Japanese

6.Characterization of an advanced HEED (High-efficiency Electron Emission Device)

Nobuyasu Negishi, Ryota Tanaka, Tomonari Nakada, Kazuto Sakemura, Yoshiyuki Okuda, Hideo Satoh, Atsushi Watanabe, Takamasa Yoshikawa, Kiyohide Ogasawara

Summary

As previously reported, the emission characteristics of the metal-insulator-semiconductor (MIS) electron emission device could be significantly improved by introducing micro-dimple structures as the emission sites. It is demonstrated that the device has some desirable features: a high emission current density, a low operation voltage, emission uniformity, and stable emission with small angle dispersion. It is also shown from the result of lifetime evaluation that the device shows a half-life of 3000 h, and that the deteriorated emission can be recovered by DC reactivation treatment.

Click for Details (PDF 114 KB)
in Japanese

7.Reduction of Operating Voltage in Organic Light-Emitting Diode by Corrugated Photonic Crystal Structure

Masayuki Fujita, Tetsuya Ueno, Kuniaki Ishihara, Takashi Asano, Susumu Noda, Hiroshi Ohata, Taishi Tsuji, Hitoshi Nakada, and Noriyuki Shimoji

Summary

A reduction of the operating voltage is achieved for an organic light-emitting diode containing a corrugated photonic crystal structure fabricated by the etching of an indium-tin-oxide anode layer. This is due to a partial reduction in the thickness of the organic layer. The light extraction efficiency can be also improved due to the diffraction of confined light by the photonic crystal effect. The voltage reduction is successfully demonstrated in combination with an improvement in the luminance efficiency at constant current for the fabricated device.

Click for Details (PDF 98 KB)
in Japanese

8.Red phosphorescent OLEDs for Practical Use

Taishi Tsuji, Toshinao Yuki, Tsuyoshi Naijo

Summary

We have developed high-efficiency, long-life organic light-emitting diode (OLED) devices by introducing red phosphorescent dopants into bis(2-methyl-8-quinolinolato)(p-phenylphenolato)aluminum (BAlq) and NS11. The devices exhibited luminance efficiency of 12 cd/A at CIE color coordinates (0.65, 0.35). The luminance half-decay lifetime is expected to be over 30,000 hours at an initial luminance of 700 cd/m2. Moreover, the devices had higher efficiency than fluorescent devices under high-duty pulse driving. We have successfully incorporated these devices into commercial OLED displays.

Click for Details (PDF 46 KB)
in Japanese

9.Active Matrix Organic Light Emitting Diode Panel using Organic Thin Film Transistors

Takashi Chuman, Satoru Ohta, Chihiro Harada, Atsushi Yoshizawa, Satoshi Miyaguchi, Hideo Satoh, Takahisa Tanabe and Masami Tsuchida

Summary

By using organic thin-film transistors with pentacene as the active organic layer, an active matrix organic light emitting diode panel has been developed. The number of pixels in the panel is 8 x 8, and each pixel is driven by switching and driving transistors. We confirmed the display of 16 gray scales by means of an analog driving method.

Click for Details (PDF 310 KB)
in Japanese

[General Paper]
The Second-generation HDD Car Navigation System

Yoshikazu Takeuchi, Hajime Adachi, Reiji Matsumoto, Katsumi Amano

Summary

We developed the second-generation HDD navigation system and introduced the AVIC-ZH900MD to the market in June 2004. It is a navigation auto server of 2DIN all-in-one design that unites a high-level car navigation function and advanced AV in the higher dimension. We developed a car navigation platform that has the advanced functions such as a real 3-dimensional solid map display, mood-based music play function, and broadband connection.

Click for Details (PDF 138 KB)
in Japanese

Flicker Reduction Schemes in MPEG-2 Video by Post-Processing

Yoshimichi Otsuka

Abstract

Television signals are not linear in an electrical domain because of gamma encoding inside a video camera. It is quite possible that picture degradation is caused in an optical domain but never done in an electrical one. An example is the flicker caused by the gamma decoding when MPEG-2 decoded pictures are displayed. This paper introduces the mechanism of flicker generation and describes flicker reduction schemes by post-processing the MPEG-2 decoded video signals.

Click for Details (PDF 74 KB)
in Japanese

Current Status and Future Trends of Digital Broadcasting in Japan

Yoshimichi Otsuka

Abstract

Digital broadcasting has been studied since the latter half of 1990s in Japan. After the standardization of the systems and developments of receivers, the launch of digital satellite broadcasting marked a start toward the realization of new HDTV broadcasting on December 1st, 2000, and digital terrestrial television broadcasting commenced in 2003. The current analog broadcasting will end in 2011. This paper reviews the history and describes the future trends of digital broadcasting.

Click for Details (PDF 86 KB)
in Japanese

[Introduction of Pioneer Group related R&D]
An Introduction to Pioneer Micro Technology Corporation

Hisashi Takami

Summary

As an associated company of the Pioneer Group, Pioneer Micro Technology Corporation(MTC) is developing, manufacturing, and selling semiconductors for digital consumer electronics. Especially, MTC is developing the custom ICs that become the main parts to achieve the features of products of each user company. This document gives an outline of the activities and basic principles at MTC, the work done by each section and the technology behind our ICs for optical discs, digital image processing, and organic light emitting diode displays.

Click for Details (PDF 146 KB)
in Japanese

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