Pioneer Electronic Corporation

Pioneer Corporation

Takashi Morimae

Kyota Funamoto

Mutsumi Kono

Ken Masui

A reproducing apparatus ( ) is provided with a reading device ( ) for reading reproduction data and reproduction control data to control a reproduction of the reproduction data from a record disc ( ), on which the reproduction data and the reproduction control data are recorded, a record medium ( ) having a plurality of memory areas, a data managing device ( ) for storing one reproduction control data read by the reading device into one of the memory areas, and a reproducing device ( ) for reproducing the reproduction data in accordance with the reproduction control data stored in the memory areas. The data managing device ( ) is provided with: a retention priority memory for storing retention priority data, which indicate a retention priority as for each reproduction control data respectively stored in the memory areas; a selecting device for selecting one of the memory areas, into which the one reproduction control data read by the reading device is to be stored, on the basis of the retention priority data stored in the retention priority memory, when the one reproduction control data is read by the reading device; and a storing device for storing the one reproduced control data read by the reading device into the memory area selected by the selecting device.

Reproducing apparatus for record disc

An information data detecting apparatus for use in a recording medium playing apparatus detects the presence/absence of information data under software control using an error correction code. The information data detecting apparatus acquires a read signal representing the contents of a specified sector, extracts digital data from the read signal, performs an error-correcting operation on the extracted digital data and produces an error-correctable indicating flag when error correction is possible. When detecting the presence of the error-correctable indicating flag, the information data detecting apparatus produces a written-state signal indicating that the specified sector is used.

Growing community of inventors

Tokorozawa, Japan

Takashi Morimae