US 7,444,063 B2 · Information-recording apparatus, information-recording method, information-reproducing apparatus, information-reproducing method, and information-recording medium

Abstract

In an information-recording apparatus and the like according to the invention, digital information is recorded in a magnetic tape according to a recording format in which two types of sync lengths exist. The recorder records digital information having a first information-recording length and digital information having a second information-recording length, which is shorter than the first information-recording length in the magnetic tape. The recorder records a CTL signal serving as a reference during reproduction of the digital information between a recording portion of the digital information having the first information-recording length and a recording portion of the digital information having the second information-recording length. A gap portion between the recording portions of digital information having different sync lengths and a recording portion of a CTL signal are utilized as a signal processing space required for carrying out error correction such as C1 correction during reproduction of the digital information.

Claims12

Dependent claims

An information-recording apparatus for recording digital information in an information-recording medium in accordance with a recording format in which two types of information-recording lengths exist, said digital information including image information having a first information-recording length and audio information having a second information-recording length, said second information-recording length being shorter than said first information recording length, the information-recording apparatus comprising:

a recorder for recording the image information and the audio information in said information-recording medium,
wherein the recorder records a servo control signal between a recording portion of the image information having the first information-recording length and a recording portion of the audio information having the second information-recording length, said servo control signal serving as a reference during reproduction of said image information and said audio information, and
wherein the recorder records the servo control signal after the image information having the first information-recording length and before the audio information having the second information-recording length.

An information-reproducing apparatus for reproducing digital information from an information-recording medium having a recording format in which two types of information recording lengths exist, said digital information including image information having a first information-recording length and audio information having a second information-recording length, said second information-recording length being shorter than said first information recording length, said information-reproducing apparatus comprising:

a reproducer for reproducing said image information and said audio information from said information-recording medium,
wherein said reproducer reproduces a servo control signal between a recording portion of the image information having said first information-recording length and a recording portion of the audio information having said second information-recording length, said servo control signal serving as a reference during reproduction of said image information and said audio information, and
wherein the reproducer reproduces the servo control signal after the image information having the first information-recording length and before the audio information having the second information-recording length.

An information-reproducing method for reproducing digital information from an information-recording medium having a recording format in which two types of information recording lengths exist, said digital information including image information having a first information-recording length and audio information having a second information-recording length, said second information-recording length being shorter than said first information recording length, said method comprising the steps of:

reproducing said image information and said audio information from said information-recording medium;
and
reproducing a servo control signal between a recording portion of the image information having said first information-recording length and a recording portion of the audio information having the second information-recording length, said servo control signal serving as a reference during reproduction of said image information and said audio information,
wherein the servo control signal is reproduced after the image information having the first information-recording length and before the audio information having the second information-recording length.

1 more element

Dependencies are inferred from the claim text.

Information-recording apparatus, information-recording method, information-reproducing apparatus, information-reproducing method, and information-recording medium

Life of this patent

Information-recording apparatus, information-recording method, information-reproducing apparatus, information-reproducing method, and information-recording medium

Life of this patent

Abstract

Claims12