Maxell, Ltd.

Hitachi, Ltd.

Hitachi Consumer Electronics Co., Ltd.

Renesas Electronics Corporation

Hitachi Maxell, Limited

Hitachi-lg Data Storage, Inc.

Yasuo Mutsuro

Keisuke Inata

Hiroki Mizosoe

Akihito Nishizawa

Yutaka Nagai

Koichiro Nishimura

Masakazu Ikeda

Osamu Kawamae

Masaru Takahashi

Atsushi Neo

Junichi Tanjima

Module compressing/encoding plural images for recording, or an image recording apparatus or image recording system including the module. At least two first and second image input module types capture an image of frames from a video signal source, and convert into digital image data for output; an image input arbitration module arbitrates to place digital image data provided by the first type before digital image data provided by the second type. The first type image input module is provided with a real-time image. The apparatus or system further includes: a memory module temporarily storing the real-time image by a processing time for the arbitration module to process digital image data provided by the second type of image input module, an image encoding module compressing and encoding the digital image data, and changing a processing speed to perform a process of compression and encoding more in real time.

Information recording/reproducing apparatus

There are provided an optical disc device and its recording/reproducing method for managing the management information about plural optical discs efficiently. In the present invention, the management information about the plural optical discs is stored in a memory. Moreover, the management information about part or all of the optical discs stored in the memory is recorded in the optical disc.

Optical disc device and optical disc recording/reproducing method

A semiconductor device mounted in an optical disk apparatus controls writing and reading of data in and from an optical disk. The device performs first processing for adjusting a write strategy in such a manner that based on error information corresponding to a shift in the phase of a reproduction signal with respect to a channel clock signal for data reproduction, which is generated based on the reproduction signal read from the optical disk, the value of the error information related to a plurality of recording marks to be evaluated becomes minimum as a whole. The device also performs second processing for adjusting a write strategy in such a manner that the value of the error information related to a desired recording mark becomes small.

Semiconductor device, write strategy generating method, and write strategy generating program

A video camera is provided not only with means for receiving any general captured images but also with means for receiving images from any other video input source. The video camera is also provided with an image input arbitration section that captures, after arbitration, video data coming from these two input means, and stores the resulting data into a memory. As such, when the video input source is a video output terminal of a car navigation system, the screen of the car navigation system, i.e., map information, can be stored in a memory together with a user's captured image. When the video camera is used for monitoring, data capturing into a memory is also enabled when the video input source is a medium already carrying therein map image data, e.g., USB flash memory and SD card, and means for reading the map image data from the medium. The data in the memory is subjected to a process of compression and encoding as moving images so that the image of position information and the user's captured image can be processed as a set of moving images. This accordingly enables to provide a system and method for recording and reproducing a set of moving images of the combination of an image of position information and a user-captured image with no need for a complicated process.

An optical disc apparatus capable of deriving optimum laser beam power even when OPC areas overlap with one another and a method for the apparatus. OPC result is recorded to an optical disc and OPC (area-saving OPC) that reduces an area use quantity by using the OPC result is executed and optimum laser power is determined.

Recording apparatus and recording method

The present invention provides a recording/reproduction apparatus and a method therefor with superior cost-effectiveness and data durability with respect to vibrations, and an efficient configuration of the memory for storing data for recording/reproduction processing when compressing image data or the like and recording the data to a recording medium or reproducing the data therefrom. In the present invention, the memory for compression and expansion processing and the buffer memory for recording and reproduction are allocated to the same memory chip. When recording/reproduction becomes impossible because of vibrations or the like, the capacity of the buffer memory for recording/reproduction is maximized by expansion. The memory capacity for compression/expansion processing is modified according to the required image quality.

Growing community of inventors

Yokohama, Japan

Yasuo Mutsuro