Optical disk recorder with reproduction quality control

Abstract

A method is designed for writing data originally recorded in a source disk medium with an original reproduction signal quality, into an object disk medium by means of an optical recording apparatus having a machine parameter settable to control a reproduction signal quality of data. The method is carried out by the steps of measuring the original reproduction signal quality of the data originally recorded in the source disk medium, setting a value of the machine parameter of the optical recording apparatus in accordance with the measured original reproduction signal quality, and writing the data into the object disk medium by means of the optical recording apparatus so as to secure the reproduction signal quality of the written data comparable to the original reproduction signal quality.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a divisional application of U.S. patent application Ser. No. 10 / 341,675, filed Jan. 14, 2003.BACKGROUND OF THE INVENTION [0002] 1. Technical Field of the Invention [0003] The present invention relates to adjustment of reproduction signal quality of data which is recorded on write once optical disks and erasable optical disks. [0004] 2. Prior Art [0005] Optical disks are used for recording, reproducing, and backing up audio or music data, computer data, image or still picture data, motion picture data, and the like. This is because optical disks can record a large amount of data in addition to the spread of low price optical disks and optical disk recording apparatuses capable of recording data as well as data recording software and computers. Optical disks capable of recording data include write once optical disks such as CD-R and DVD-R that can record data only once; and erasable optical disks such as CD-RW, DVD-RW,...

AI Technical Summary

Benefits of technology

[0017] In a practical sense, the inventive method is designed for writing data originally recorded in a source disk medium with an original reproduction signal quality, into an object disk medium by means of an optical recording apparatus having a machine parameter settable to control a reproduction signal quality of data. The method comprises the steps of measuring the original reproduction signal quality of the data originally recorded in the source disk medium, setting a value of the machine parameter of the optical recording apparatus in accordance with the measured original reproduction signal quality, and writing the data into the object disk medium by means of the optical recording apparatus so as to secure the reproduction signal quality of the written data comparable to the original reproduction signal quality.

[0061] According to this configuration, the inventive program allows the computer to perform the process such that the storing step stores the signal quality parameters indicating a reproduction signal quality defined when data were recorded on an optical disk in the past, the display step displays the signal quality parameters stored by the storing step, the selecting step selects the displayed signal quality parameter, and then the setting step sets a machine parameter during data recording based on the signal quality parameter selected by the selecting step. Therefore, the same effect as (17) can be obtained.

Problems solved by technology

Occasionally, the conventional optical recording apparatus may automatically set an improper machine parameter.

Though the optimal parameter is defined for the best effort to prevent an error during data reproduction, the parameter does not always ensure the best sound quality for music data recording.

When the conventional optical disk recording apparatus records data on an optical disk, however, a user cannot set a parameter for representing the reproduction signal quality of recorded data.

Such a design allows beginners to easily record data on optical disks, but has been unsatisfactory for advanced users because there is no way of customizing a parameter representing the reproduction signal quality.

However, the adjusted maximum recording speed is based on the signal quality limit, not on the criterion of selecting a recording speed for good sound quality with reduced jitter, for example.

Accordingly, the recording speed automatically set by this function does not necessarily ensure good sound quality for recording music data.

This function specification has been unsatisfactory for some users such as experienced listeners who wish good sound quality.

These works impose users with many costs and labors.

In such a case, good reproduction signal quality on the optical disk recording apparatus does not necessarily mean good reproduction sound quality on another CD player.

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