A small-sized Blu-ray/DVD optical head for camcorders
A small-sized Blu-ray/DVD optical head for camcorders
[Click to enlarge image]
A CMOS type image pickup device with 5,300,000 pixels
A CMOS type image pickup device with 5,300,000 pixels
[Click to enlarge image]

Hitachi Ltd. developed an optical head for Blu-ray Disc/DVD, image pickup device, CODEC LSI and image processing LSI for a camcorder that shoots in 1920×1080 high definition.

Hitachi is expected to announce a Blu-ray Disc camcorder mounted with those basic parts in summer 2007. In CEATEC JAPAN 2006, the company exhibited a mock-up of a Blu-ray Disc camcorder.

Newly-developed 4 Basic Parts

The small-sized optical head that allegedly supports 8-cm Blu-ray Disc media was developed for the first time in the world. It is composed of two lenses, separating the Blu-ray Disk optical system and DVD optical system. The optical head supports BD-RE/-R and DVD-RAM/-RW/-R.

Hitachi developed the CMOS type image pickup device in collaboration with AltaSens Inc. of the United States. It is a 1/2.8-inch type. The number of pixels is 5,300,000, and the image pitch is 2.09 μm.

The image pickup device can output 60 frames of 1920×1080 progressive images per second.

The CODEC LSI supports MPEG-4 AVC/H.264 for HDTV images, MPEG-2 for SDTV images, and coding and decoding of JPEG files for still images. Also, it can down-convert MPEG-4 AVC/H.264 files to MPEG-2 files.

For example, it may be possible to store HDTV images in the HDD embedded in the camcorder and write SDTV images in DVD media afterward.

The image processing LSI is mounted with an adaptive noise reduction circuit and Advanced CCM (correlative coefficient multiplying method) circuit whose signal processing algorithm was improved from that of the former DVD camcorders to process HDTV images.