Sony Corporation

Toshifumi Nomura

Toshiyuki Nishihara

Hiroyuki Suzuki

Kazumi Sato

Hideki Hara

Katsuya Nakashima

Yukihisa Tsuneda

Takashi Akai

A touch sensor includes: a first touch sensor section; a second touch sensor section disposed close to the first touch sensor; and a sensor detection section detecting whether a valid touch has been given to the first touch sensor section on the basis of an output of the second touch sensor section.

Touch sensor with a plurality of touch sensor sections

A file storage apparatus capable of restoring integrity of file management information even when a power supply abnormality occurs without lowering the write speed. When updating meta data stored in an HDD, log data for reconstructing the meta data after update from the meta data before update is written into a non-volatile RAM (NVRAM), then, after this writing is completed, the update is executed. Accordingly, even when the update use meta data temporarily stored in a cache memory is partially lost due to trouble such as a power supply abnormality and when update of the meta data of a hard disk is incomplete, the log data corresponding to the meta data for the update is held in the NVRAM, so it becomes possible to restore the integrity of the meta data on the hard disk by using this log data.

File storage apparatus for storing file data and management information

Growing community of inventors

Kanagawa, Japan

Toshifumi Nomura