Pioneer Corporation

Techexperts Incorporation

Akihiro Denda

Yoshiya Nonaka

Ryoji Sugino

Nobuo Tarui

Noritaka Nii

Yuji Sakamoto

Junko Nishigata

Data is stored in a non-volatile memory such as a flash memory. The non-volatile memory has two memory areas. When power of a device is turned on, data in the two memory areas are compared to determine which memory area includes old data, and the old data is erased. When the power is turned off, a control setting of the device used immediately before the power is turned off is stored as new data in the memory area from which the old data is erased. When the power is applied again, the new data is read, and the control setting is restored in the device.

Memory control device, in-car device, memory control method, and computer product for managing data in response to various power states

A method and an apparatus for performing high-quality read and write operations through a simple operation without being affected by an interruption even when the interruption has occurred in the course of a read/write operation between information storage media. When an interruption occurs in the course of reading program information stored on an optical disc to write the program information onto a hard disk, the write status of the program information which has encountered the interruption and the information for identifying the program information are stored on the hard disk. After the recovery from the interruption, read and write operations are restarted. Then, the program information capable of ensuring the continuity with the program information which has been properly written on the hard disk prior to the interruption is determined in accordance with the write status of the program information which has encountered the interruption and the information for identifying the program information. A read operation is performed from the program information thus determined and then a write operation to write the information on the hard disk.

Apparatus and method for interruption of read and write operation and program storage medium for storing read and write procedure program

An information reproducing/recording system has a reproducing apparatus which reproduces program information from a first recording medium, a recording/reproducing apparatus which records program information on a second recording medium or reproduces program information from the second recording medium, and a control apparatus which controls the reproducing apparatus and the recording/reproducing apparatus. The control apparatus acquires first management information for program information recorded on the first recording medium, and acquires second management information for program information recorded on the second recording medium. And then, the control apparatus compares the first management information and the second management information, and judges based on the result of comparison whether program information corresponding to the first management information has been recorded on the second recording medium. And if the program information corresponding to the first management information has been recorded on the second recording medium, the control apparatus judges whether a predetermined recording condition is satisfied, and if the recording condition is satisfied, controls the reproducing apparatus and the recording/reproducing apparatus so as to record the program information recorded on the first recording medium onto the second recording medium.

System for controlling recording and reproducing data using management information on the medium

A system control microcomputerof a control sectioncontrols to automatically make a temporary copy in a temporary area B of a recording/reproducing section, and reproduce by reading this temporary copy, when an optical discis inserted for reproduction, and invalidate or delete the previous temporary copy, when the optical discis ejected.

Apparatus and method for caching and selectively reproducing information from recording media

An information recording apparatus for recording content information on an information recording medium includes a main information recording area on which main information to be reproduced is recorded, and a plurality of content information recording areas on which content information to be reproduced to indicate contents of the main information is recorded. The apparatus includes a recording device, a confirming device and a control device. The recording device records the content information on a part of the plurality of content information recording areas. The confirming device confirms a recording result of the content information thus recorded. The control device controls the recording device, only when the recording result is confirmed to be successful, so that content information that is identical with the content information recorded on the part of the content information recording areas can be recorded on the other part of the content information recording areas.

Information recording apparatus and information recording method

The information reproduction apparatus for reproducing information recorded on a card-type recording medium is configured so as to include an attachment/reproduction device which the card-type recording medium is inserted in and attached to for reproducing the information recorded on the card-type recording medium; a connection detection device for detecting a state whether or not the card-type recording medium is electrically connected to the attachment/reproduction device; an insertion detection device for detecting a state whether or not the card-type recording medium is inserted into the attachment/reproduction device; and a control device for determining the attachment state of the card-type recording medium based on the state detected by the connection detection device and the state detected by the insertion detection device.

Information reproduction apparatus

A data recording apparatus is provided with: a recording device which includes a data recording region having data recorded in a predetermined unit, a first management data region having management data with respect to the data recorded in the data recording region, stored in the predetermined unit, and a second management data region having the same management data as that stored in the first management data region, stored in the predetermined unit; a control device which performs, in the predetermined unit, control processing including a record processing for recording data in the data recording region and an update processing for updating management data in the first management data region and the second management data region; and a memory which stores status data indicating a control processing status in the predetermined unit by the control device.

Data recording apparatus and data erasing apparatus capable of performing restoration when power supply malfunction occurs during recording or erasing

An improved switchover device includes input terminals connected with information sources, first and second output terminals connected with information processing devices, switching elements for effecting switchover connection between the input terminals and the output terminals and a switchover control circuit for controlling the switching elements. When information from one information source is being supplied to the information processing devices and there is an interrupt request for supplying information from another information source devices, the switching element between the input terminal of the one information source and the first output terminal is made OFF, while the switching element between the input terminal of the other information source and the first output terminal is made ON. The switching element between the input terminal of the one information source and the second output terminal is kept ON. Thus, the information processing devices are allowed to respectively process information from a plurality of information sources.

Switchover device and information recording/reproducing apparatus having the switchover device

An information reproduction apparatus for reproducing an item of program information from among a plurality of items of program information recorded on a recording medium, the plurality of items of program information including program information to which reproduction restriction information is added, and the information reproduction apparatus includes: a continuous reproduction specifying device for specifying continuous reproduction of a plurality of items of program information recorded on the recording medium; a determination device for determining based on the reproduction restriction information whether an item of program information is prohibited to be reproduced; and a control device for starting the continuous reproduction of the item of program information if the continuous reproduction of the item of program information is specified through the continuous reproduction specifying device, wherein the control device causes an item of program information determined by the determination device as being prohibited to be reproduced to be skipped and the reproduction to be continued after the continuous reproduction is started.

Information reproduction apparatus and information reproduction

In an information reproduction apparatus, a recording/reproducing unit reproduces a plurality of program data on a recording medium. The program data and identification information for the program data are stored on the recording medium. An operation/display unit displays the identification information and reproduction frequency information, and allows an user to select one of the program data to be deleted. An controller for controlling the recording/reproducing unit in accordance with an instruction from the operation/display unit. The controller calculates the reproduction frequency information for each of the program data by employing a variety of information obtained by reproducing each of the program data. The controller controls the recording/reproducing unit to erase from the recording medium the program data identified by the operation/display unit.

Information reproduction apparatus and method for erasing program data

In a case where there occurs an even of interrupting recording operation such as a power cut out or a communication error, while creating a library in the hard disk by a recording/reproducing section , a system control microprocessor controls to automatically delete a halfway file that is not completely recorded, thereby preventing the halfway recorded file from being accumulated in the hard disk B.

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Saitama, Japan

Akihiro Denda