Verfahren und Vorrichtung zum Aufzeichnen eines digitalen Informationssignals

• Main Authors: OSAWA, EIICHI, SHINAGAWA-KU, TOKYO, JP, YOSHIZAWA, MAMORU, SHINAGAWA-KU, TOKYO, JP, TANAKA, MASATO, SHINAGAWA-KU, TOKYO, JP, NAKAI, JUN, SHINAGAWA-KU, TOKYO, JP, KOJIMA, YUICHI, SHINAGAWA-KU, TOKYO, JP
• Format: Patent
• Language: German
• Published: 20.04.1995
• Edition: 6
• Subjects: INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; PHYSICS

A method of recording a digital data signal, such as an audio PCM signal, onto a recording medium in the longitudinal direction thereof, together with an apparatus which is suitable for this recording method. Even-numbered words and odd-numbered words in a digital data signal are recorded on a first track group and a second track group, respectively, which are separated from each other in the widthwise direction of a recording medium, to prevent a series of words becoming error words because of, for example, a flaw in the recording medium in the longitudinal direction thereof. The data format is changed at the input and output of a recording encoder to enable an error correction code and a recording circuit to be used in common for digital tape recorders which have different numbers of tracks, e.g., n tracks and 2n tracks. When an error correction code is recorded in such a manner that one word in the digital data signal is divided into a plurality of symbols which are formed into an error correction code, a plurality of symbols of the same word are recorded at a position at which error correlation is strong, making effective use of the error correction capacity of the error correction code.