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Research Achievements

All Research Achievements

Development of High-Precision Recognition Technology for Low-Quality Handwriting Chinese Character in the 6th National Population Census


We have conducted mid-and long- term R&D on the OCR technology concerning low-quality Chinese handwriting character recognition. This technology is highly praised by Chinese government. We competed with the local companies as a foreign company and won the tender. Our technology was adopted in the 6th National Population Census project conducted by Chinese government in Sep, 2010. More Detail

Fujitsu Demonstrates Ultra High-Speed Short-Reach Data Transmission Based on Multi-level Signalling and Advanced ADC/DAC Technology


Fujitsu Semiconductor Europe (FSEU) has demonstrated the transmission of >100Gbps over a single CEI-28G-VSR channel, effectively quadrupling the data rate throughput defined by the Optical Internetworking Forum (OIF) for this chip-to-chip electrical interface. This serves as a benchmark for what can be achieved over short-reach electrical channels using the same field-proven CMOS converter technology deployed in long-haul optical transport systems today. Key to the study is a comparison of the relative advantages and disadvantages of PAM (Pulse-amplitude Modulation) encoding versus DMT (Discrete Multi-Tone) over this particular channel. FSEU’s test and demonstration platform is based on the test chips and evaluation boards for the family of 40nm, 65GSps CMOS converters (“LEIA” DAC for transmit and “LUKE” ADC for receive). More Detail

Geared toward high-speed optical fiber transmission systems that can support the increasing traffic of next-generation smartphones and cloud services


Fujitsu Limited, Fujitsu Laboratories Limited and Fujitsu Research and Development Center Co., Ltd. of China today announced the development of a digital signal processing algorithm to compensate for waveform distortion in long-haul transmission systems of over several hundreds of kilometers. This, in turn, enables a roughly twenty-fold improvement in the compensation ability per circuit size compared to typical existing technology, representing a considerable improvement of approximately three times compared to circuits previously developed by Fujitsu. As a result, the new technology has succeeded in extending the long-haul operating range of optical signals. By reducing the energy consumption of compensation circuits by two-thirds, the new technology also helps cut energy consumption throughout an entire network. More Detail

Circuit size and energy requirements both reduced by approximately 85%


Fujitsu Limited, Fujitsu Laboratories Limited and Fujitsu Research and Development Center Co., Ltd. of China jointly announced their development of a digital signal processing algorithm to compensate for waveform distortions in signals transmitted by fiber-optic cables in long-haul transmission systems of 100 km or more. Compared to conventional technology in widespread use in literatures, the size and power requirements of the new circuit are reduced by approximately 85%, and are reduced by approximately 50% compared to circuits previously developed by Fujitsu. More Detail

Fujitsu Shrinks by 70% Distortion-Compensation Circuit for Fiber-Optic Transmissions over 100 Gbps


Fujitsu Limited, Fujitsu Laboratories Limited, and Fujitsu Research and Development Center Co., Ltd. of China today jointly announced that they have developed a digital signal processing algorithm that compensates for waveform distortion in signals sent over hundreds of kilometers of fiber-optic lines, as part of a long-haul transmission system, and that they have also reduced the size of the required circuitry by approximately 70%. More Detail

Frequency offset estimation and compensation for digital optical coherent receiver


With the increasing requirements for the capability and flexibility of the optical communication system, the coherent technology is attracting more and more attention in the optical transmission area. To realize the optical coherent receiver, a main technical challenge is how to synchronize the local oscillator and carrier laser. More Detail

Phase control technology of optical DQPSK receiver


For 40Gbit/s and higher optical communication system, the differential quadrature phase shift keying (DQPSK) becomes the preferential modulation method recently due to its high-spectrum efficiency and higher dispersive tolerance, but this modulation method should control the phase error of the receiver to be within 10. Compared to the differential binary phase shift keying (DBPSK), its control accuracy is increased by 5 times. We propose a new phase control method without dither to successfully realize the above target. This method overcomes the main implement obstacle of DQPSK technology and applies the DQPSK modulation format from the lab into the actual products. More Detail

Synchronization technology for OFDM system


As a wireless transmission technology with high-spectrum efficiency, OFDM is extensively applied in the next-generation broadband wireless communication systems. The Communication Technology Research Department conducts deep and detailed research on some key steps in OFDM technology. For example, when the terminal synchronizes time and frequency with base station in high-speed movement, the synchronization time will increase due to Doppler frequency offset caused by high-speed movement, interference from adjacent base stations and channel fading effects. As a differential technology and innovation with other companies, we propose an advanced high-performance and fast synchronization scheme which is adopted in the next-generation wireless communication products. More Detail

Research on MIMO technology


ITU-R has collected IMT-Advanced technology proposes from countries and standardization organizations. The Communication Technology Research Department is actively participating in this work. Among those technical candidates, the advanced MIMO (multi-input and multi-output) of the new-generation radio communication is our research focus, especially the important branch of codebook based multi-user MIMO technology . The issue is to compute the appropriate channel quality indicator (CQI) and corresponding precoding vector index (PVI) of each user. Without the channel matrix of other terminals, the system cannot effectively control inter-user coherent when deciding the best pre-coded vector and CQI. We propose a new precoding scheme and can reduce the inter-user interference in multi-user MIMO system. More Detail

High-quality Chinese speech synthesis technology


Speech synthesis technology is extensively applied in a variety of real time information services such as call center, car navigation, speech webpage, assistance teaching, special populations (eye disabled) service, and so on. The user experience and service quality are largely affected by the correctness, smoothness, and naturalness of the synthesized speech. By studying the key technologies such as rhythm, polyphone, digits and symbol processing, we develop the Text-To-Speech (TTS) system to generate high-quality and natural speech. More Detail

Introduction to 2D diagram plane/3D-CAD model retrieval system


To rapidly develop and present competitive products to the market in the manufacturing area, it is necessary to effectively utilize the cumulative technical materials such as design scheme of the existing products. For this purpose, the engineering drawings should be effectively managed and retrieved so as to quickly find the required information from a large number of existing design schemes. We develop the content-based 2D-CAD drawing/3D-CAD model retrieval system, which enables both traditional text-based management (such as file name of designs, designer and department information) and content based retrieval. With this system, a user can directly find the required design scheme by the shape of the products or components, thus the efficiency is improved and the design cost is reduced. This technology has been successfully applied in some Japanese companies. More Detail

Image processing technology for mobile devices


With the improvement of camera in mobile devices (such as mobile phone and PDA), the shooting function becomes an important application of the mobile devices and facilitates the users to record and archive the interesting targets in the daily life. The Quality of the images is subjected to some restrictions such as shooting angle and lighting condition, which results in distortion and reflection. We study and develop out two image processing technologies for mobile devices, which can automatically rectify the target document images and eliminate reflection and enhancement on the whiteboard image. More Detail

Introduction to cross-language patent retrieval system


To meet the large-scale distributed data processing requirement in the cloud computing era, we study and develop out the inter-cloud application integration technology. This system integrates the current statistics machine translation technologies and realizes the cross-language patent retrieval system for the users in China by concerting the cloud gateway technology in Japan and China. More Detail

Insight into enterprise crisis and assessment and analysis on Internet era


Acquisition behaviors of users are deeply affected by comments of other users on products in the Internet community in Internet era. From now, Fujitsu (China) Information System Co., Ltd will issue CGM (remark 1) solution to assist which can assist enterprises to quickly and effectively grasp products. CGM can intelligently assess and analyze the feedback information on products in Internet (network medias such as BBS, BLOG and SNS) to grasp assessment of users on products and assist enterprises to take countermeasures by the survey and feedback data. CGM also supports enterprises to analyze effect of the market promotion activities and adjust the scheme of the promotion activities in time by feedback. CGM can accurately grasp the crisis signals such as negative assessment on the enterprise images and products and infringement on the enterprise image on the Internet, assist enterprises to properly start the alert mechanism, effectively manage crisis and avoid business crisis. More Detail

A New Generation of High-definition Multi-standard Video Decoder supporting AVS standard


The 2nd generation video coding standard with H.264/AVC as representative is the currently popular video coding standard. AVS is 2nd generation video coding standard with independent China intellectual property. The Microsoft VC-1 and MPEG-2 are extensively applied. If a decoder is developed for each standard, to support 4 standards, the device requires 4 decoders, so it increases the device cost much. We developed a full high-definition decoder which can simultaneously support 4 standards and features high integration and low power consumption. Among them, the feature of supporting full HD AVS video decoding is particularly noteworthy, because, at present, most of the other HD chips only support SD AVS decoder. More Detail

Fast image defogging technology


All types of cameras, such as digital cameras, surveillance cameras, and car-mounted cameras, have been applied in many aspects of life, with the advances in technology and improvement of living. However, bad weather (fog, haze, dust, rain, and snow, etc.) will reduce the performance of outdoor cameras, and make them hard to keep stable visibility. For surveillance cameras and car cameras, the images will be blurred under the situations of heavy fog, dust, and air pollution. People cannot identify clearly moving cars, pedestrian, and car plate number. To solve such problems, we have developed a fast high performance defogging technology. It calculates respectively the approximate fog density in single pixel and local area, with single input image. Then by combining them together, it will estimate precise fog density for each pixel, and restore the defogged image. After defogging, the brightness can also be improved adaptively. By software implementation on PC, we can achieve the run speed of 720x480@30fps. This technology is suitable for outdoor surveillance and navigation assistance. More Detail