Manabu Sasamoto

A Lightweight Encryption Method Suitable For Copyright Protection

In this paper we propose a new lightweight encryption algorithm called MX. This algorithm has high performance and sufficient robustness, so that it is suitable for copyright protection systems in both CE and IT devices.

Very low-delay H.264 codec for consumer applications

We have newly developed a very low-delay full HD codec with relatively lower bitrate focusing especially on consumer or small business applications. We have analyzed several important factors for achieving low-delay, and developed a new codec pipeline control scheme for our versatile H.264 codec platform already developed. We implemented the algorithm on the codec platform, and obtained a result of 10 ms minimum delay with several test sequences at bitrate of 8 to 10 Mbps.

System Architecture of H.264/AVC Codec LSI for Digital HD Camcorder

A single chip H.264/AVC codec LSI was newly developed for digital HD camcorder, which integrates a video codec, an audio codec, graphics, video interfaces, peripherals, a host processor, and an SDRAM interface. In order to realize low-power real-time receding and playing back system, the LSI uses a software-based codec architecture and a flexible SDRAM control architecture.

D-VHS VCR for the digital broadcasting system

A new VCR for the digital broadcasting systems based on the D-VHS format has been developed. It can record digital bit stream data from the digital broadcasting receiver in addition to the current VHS analog recording, using a D-VHS tape which contains the same material as a S-VHS tape.