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EP0476445A2
Expired / Lapsed
EP
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Magnetic tape cassette
Assignee: Fujifilm Holdings Corp
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Filing: 1991-09-05
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Granted: —
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Expires: 2011-09-05
Abstract
Abstract A semiconductor memory is installed in a magnetic tape cassette so as to enable electric signals transmitted from the outside of the magnetic tape cassette to be recorded therein or reproduced therefrom. In addition, the magnetic tape cassette includes an output/input terminal by way of which the semiconductor memory is electrically connected to a recording/reproducing unit. With this construction, when the direction of running of a magnetic tape is reversed during a recording or reproducing operation, the recording/reproducing function of the semiconductor memory can be utilized in place of the recording/reproducing function of the magnetic tape with the aid of a changeover signal previously inputted into the magnetic tape at a position, e.g., in the proximity of the end of the magnetic tape. Thus, the occurrence of interruption of the recorded/reproduced signals can be prevented by virtue of the substitutive recording/reproducing function of the semiconductor memory.
Inventors
- 👤 Hidetoshi C/O Fuji Photo Film Co. Ltd. Hirata
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 08:59
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087; G11B23/08707; G11B23/08714; G11B15/00; G11B15/02; G11B15/05; G11B20/00; G11B20/10; G11B20/10527; G11B23/30
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
125 words
In a cassette for containing a magnetic tape in a wound state in a hollow space defined by a pair of upper and lower case halves and wherein a pair of hubs are rotatably supported in said hollow space, the improvement wherein a semiconductor memory means is installed in said hollow space so as to enable electric signals transmitted from outside said cassette to be recorded in said semiconductor memory means and reproduced from said semiconductor memory means, and in that said cassette includes an output terminal by way of which signals recorded in said semiconductor memory means are inputted to a reproducing unit and an input terminal by way of which signals transmitted from a recording unit are inputted to said semiconductor memory means.
Claim 2
Dependent Claim
125 words
In a cassette for containing a magnetic tape in a wound state in a hollow space defined by a pair of upper and lower case halves and wherein a pair of hubs are rotatably supported in said hollow space, the improvement wherein a semiconductor memory means is installed in said hollow space so as to enable electric signals transmitted from outside said cassette to be recorded in said semiconductor memory means and reproduced from said semiconductor memory means, and in that said cassette includes an output terminal by way of which signals recorded in said semiconductor memory means are inputted to a reproducing unit and an input terminal by way of which signals transmitted from a recording unit are inputted to said semiconductor memory means.
Claim 3
Dependent Claim
80 words
The cassette for containing a magnetic tape as claimed in claim 1, wherein a changeover signal is recorded on said magnetic tape at a position near an end of a recording region of said magnetic tape in such a manner that said changeover signal can be detected by a sensor mounted on said recording unit or said reproducing unit, said changeover signal being indicative of a point of starting or stopping outputting of signals reproduced from said semiconductor memory means.
Claim 4
Dependent Claim
32 words
The cassette for containing a magnetic tape as claimed in claim 1, wherein said semiconductor memory means is disposed at a position adjacent a side wall of one of said case halves.
Claim 5
Dependent Claim
37 words
The cassette for containing a magnetic tape as claimed in claim 1, wherein said semiconductor memory means is disposed at a position adjacent a right-hand side wall of a lower case half at a rear end thereof.
Claim 6
Dependent Claim
23 words
The cassette for containing a magnetic tape as claimed in claim 1, wherein said semiconductor memory means is an Electrically Erasable and Programmable-ROM.
Claim 7
Dependent Claim
20 words
The cassette for containing a magnetic tape as claimed in claim 1, wherein said semiconductor memory means is an Electrically-Programmable-ROM.
Claim 8
Dependent Claim
50 words
The cassette for containing a magnetic tape as claimed in Claim 1, wherein said semiconductor memory means comprises a substrate, a semiconductor memory device mounted on an upper surface of said substrate, a supporting member for supporting said substrate, and a plurality of output/input terminals mounted on said supporting member.
Claim 9
Dependent Claim
32 words
The cassette for containing a magnetic tape as claimed in Claim 7, wherein said semiconductor memory device comprises a plurality of lead terminals projecting from outer side surface of said memory device.
Claim 10
Dependent Claim
19 words
The cassette for containing a magnetic tape as claimed in Claim 7, wherein said substrate is a flexible substrate.
Claim 11
Dependent Claim
34 words
The cassette for containing a magnetic tape as claimed in Claim 8, wherein each of said lead terminals connects to one end of a connecting thin wire previously arranged and enclosed within said substrate.
Claim 12
Dependent Claim
33 words
The cassette for containing a magnetic tape as claimed in Claim 10, wherein the other end of said connecting wires connects to each of said output/input terminals through inside of said supporting member
Claim 13
Dependent Claim
23 words
The cassette for containing a magnetic tape as claimed in Claim 7, wherein said supporting member is unitary assembled with said substrate 42.
Claim 14
Dependent Claim
35 words
The cassette for containing a magnetic tape as claimed in Claim 7, wherein said output/input terminal extends toward a direction in which the magnetic tape cassette is inserted into and removed from the recording/reproducing apparatus.
Claim 15
Dependent Claim
27 words
The cassette for containing a magnetic tape as claimed in Claim 7, wherein each of said terminals is spaced apart from each other along the vertical direction.
Claim 16
Dependent Claim
26 words
The cassette for containing a magnetic tape as claimed in Claim 13, wherein said output/input terminals are electrically connectable to the recording/reproducing apparatus through connecting terminals.
References Cited (Backward Citations)
No citation records indexed.
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