Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1998-04-13
2000-12-12
Evans, Jefferson
Dynamic magnetic information storage or retrieval
Record medium
In container
242338, 242344, 242347, G11B 23087
Patent
active
061606790
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to a recording medium device adapted so that a tape-shaped recording medium like a magnetic tape, or a disc-shaped recording medium such as an optical disc or a magnetic disc, etc. on which information signals are recorded is accommodated within the cartridge body, and a recording and/or reproducing apparatus using such a recording medium device as a recording medium. More specifically, this invention relates to a recording medium device capable of carrying out discrimination with respect to any other recording medium device different in the specification, etc. of a recording medium accommodated within the cartridge body while being substantially common in the external shape of the cartridge body within which the recording medium is accommodated, and a recording and/or reproducing apparatus using such a recording medium device as a recording medium.
BACKGROUND ART
Hitherto, as a recording medium for a recording and/or reproducing apparatus such as a tape recorder or a video tape recorder, etc., a tape cartridge adapted so that a magnetic tape is accommodated within the cartridge body is used.
In the tape cartridge of this kind, tape cartridges within which a magnetic tape of which tape width is caused to be 8 mm is accommodated have been widely used. In such tape cartridges, tape cartridges used as a recording medium of a recording and/or reproducing apparatus used as an external unit of information processing equipment such as computer and used for exclusively recording data signals such as computer data, etc. which are digital signals, and tape cartridges used as a recording medium of video tape recorder and used for exclusively recording video signals or speech signals have been provided. The tape cartridge used for recording data signals and the tape cartridge used for recording video signals or speech signals are caused to be of the structure in which magnetic tapes of which tape widths are caused to be 8 mm are respectively accommodated within cartridge bodies caused to be in correspondence with each other in the dimensions and substantially common in the external shape. For this reason, it is extremely difficult to discriminate between the tape cartridge used for recording data signals and the tape cartridge used for recording video signals or speech signals by visual observation.
Meanwhile, magnetic tapes accommodated within the tape cartridge used for recording data signals and the tape cartridge used for recording video signals or speech signals are different from each other in the specification such as magnetic medium used, etc. Namely, the magnetic tape used in the tape cartridge for recording data signals has large recording capacity as compared to the magnetic tape used in the tape cartridge for recording video signals and speech signals, and is also required to guarantee large error rate with respect to data signals to be recorded. For this reason, in the case where the tape cartridge for recording video signals or speech signals is erroneously loaded into the recording and/or reproducing unit of the information processing equipment so that it is used as the tape cartridge for recording data signals, there might take place inconveniences such that, because of insufficient recording capacity, a necessary data signal fails to be recorded, or is missing.
In view of the above, as the tape cartridge within which the magnetic tape of which tape width is caused to be 8 mm is accommodated, there are used tape cartridges provided with discrimination holes indicating the specification of a magnetic tape accommodated within the cartridge body or right or wrong state of recording of information signals with respect to the magnetic tape.
As shown in FIG. 1, this tape cartridge 1 includes a cartridge body 4 in which a pair of upper and lower halves 2, 3 are butt-joined (connected), and is adapted to rotatably support a pair of tape reels 5, 6 within the cartridge body 4. Between these tape reels 5, 6, a magnetic tape 7 is wound. This magnetic tape 7 is drawn out
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Abe Masanori
Daiba Joichi
Hiramoto Takao
Kurokawa Toshiya
Maekawa Katsumi
Evans Jefferson
Maioli Jay H.
Sony Corporation
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