Patent US5245372A successfully refreshed from Google Patents.
US5245372A
Expired / Lapsed
US
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Camera using a film with a magnetic memory portion with a two-speed film transporting feature
Assignee: Canon Inc
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Filing: 1992-03-13
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Granted: 1993-09-14
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Expires: 2012-03-13
Abstract
Abstract A camera uses a film with a magnetic memory portion and includes a film transporting circuit for transporting the film, a magnetic operation circuit for writing or reading information to or from the magnetic memory portion of the film during the film transporting operation by means of the film transporting circuit and control circuit for controlling the film transporting circuit in such a manner that a film transporting speed at the time information is written by the magnetic operation circuit is slower than a film transporting speed at the time the information is read by the magnetic circuit.
Inventors
- 👤 Chikara Aoshima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:36
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/24; G03B2217/00; G03B2217/24; G03B2217/242; G03B2217/244
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
98 words
A camera using a film with a magnetic memory portion; comprising; (a) film transporting means for transporting the film; (b) magnetic operation means for writing or reading information to or from said magnetic memory portion of said film during the film transporting operation of said film transporting means; and (c) control means for controlling said film transporting means in such a manner that a film transporting speed at the time the information is written by said magnetic operation means is slower than a film transporting speed at the time the information is read by said magnetic operation means.
Claim 2
Dependent Claim
98 words
A camera using a film with a magnetic memory portion; comprising; (a) film transporting means for transporting the film; (b) magnetic operation means for writing or reading information to or from said magnetic memory portion of said film during the film transporting operation of said film transporting means; and (c) control means for controlling said film transporting means in such a manner that a film transporting speed at the time the information is written by said magnetic operation means is slower than a film transporting speed at the time the information is read by said magnetic operation means.
Claim 3
Dependent Claim
15 words
A camera according to claim 1, wherein said magnetic operation means comprises a magnetic head.
Claim 4
Dependent Claim
37 words
A camera according to claim 1, wherein said control means comprises means for controlling said film transporting means in such a manner that the film transporting speed is increased when a film blank transporting operation is performed.
Claim 5
Dependent Claim
36 words
A camera according to claim 1, wherein said control means comprises means for controlling said film transporting means in such a manner that the film transporting speed is decreased when a one-frame winding-up operation is performed.
Claim 6
Dependent Claim
36 words
A camera according to claim 1, wherein said control means comprises means for controlling said film transporting means in such a manner that the film transporting speed is decreased when a one-frame rewinding operation is performed.
Claim 7
Dependent Claim
30 words
A camera according to claim 1 wherein said control means comprises means for controlling said film transporting means by means of changing a current supplied to said film transporting means.
Claim 8
Dependent Claim
30 words
A camera according to claim 1, wherein said control means comprises means for controlling said film transporting means by means of changing a voltage supplied to said film transporting means.
Claim 9
Dependent Claim
32 words
A camera according to claim 1, wherein said film transporting means comprises a gear transmission train, and said control means comprises means for changing a rotation direction of said gear transmission train.
Claim 10
Dependent Claim
32 words
A camera according to claim 1, wherein said film transporting means comprises a gear transmission train, and said control means comprises means for changing a gear ratio of said gear transmission train.
Claim 11
Dependent Claim
105 words
A film transporting apparatus for a camera using a film with a magnetic memory portion; comprising; (a) film transporting means for transporting the film; (b) magnetic operation means for writing or reading information to or from said magnetic memory portion of said film during the film transporting operation by means of said film transporting means; and (c) control means for controlling said film transporting means in such a manner that a film transporting speed at the time the information is written by said magnetic operation means is slower than a film transporting speed at the time the information is read by said magnetic operation means
Claim 12
Dependent Claim
105 words
A film transporting apparatus for a camera using a film with a magnetic memory portion; comprising; (a) film transporting means for transporting the film; (b) magnetic operation means for writing or reading information to or from said magnetic memory portion of said film during the film transporting operation by means of said film transporting means; and (c) control means for controlling said film transporting means in such a manner that a film transporting speed at the time the information is written by said magnetic operation means is slower than a film transporting speed at the time the information is read by said magnetic operation means
Claim 13
Dependent Claim
15 words
An apparatus according to claim 10, wherein said magnetic operation means comprises a magnetic head.
Claim 14
Dependent Claim
37 words
An apparatus according to claim 10, wherein said control means comprises means for controlling said film transporting means in such a manner that the film transporting speed is increased when a film blank transporting operation is performed.
Claim 15
Dependent Claim
37 words
An apparatus according to claim 10, wherein said control means comprises means for controlling said film transporting means in such a manner that the film transporting speed is decreased when a one-frame film winding-up operation is performed.
Claim 16
Dependent Claim
37 words
An apparatus according to claim 10, wherein said control means comprises means or controlling said film transporting means in such a manner that the film transporting speed is decreased when a one-frame film rewinding operation is performed.
Claim 17
Dependent Claim
30 words
An apparatus according to claim 10 wherein said control means comprises means for controlling said film transporting means by means of changing a feed mode of said film transporting means.
Claim 18
Dependent Claim
29 words
An apparatus according to claim 10, wherein said control means comprises means for controlling said film transporting means by means of changing a voltage of said film transporting means.
Claim 19
Dependent Claim
32 words
An apparatus according to claim 10, wherein said film transporting means comprises a gear transmission train, and said control means comprises means for changing a rotation direction of said gear transmission train.
Claim 20
Dependent Claim
32 words
An apparatus according to claim 10, wherein said film transporting means comprises a gear transmission train, and said control means comprises means for changing a gear ratio of said gear transmission train.
References Cited (Backward Citations)
US4864332A
Cited
US5184161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-09-13 | 1997-03-15 | 1997-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-13 | 2001-03-15 | 2001-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-13 | 2005-03-15 | 2005-09-14 | $7700.00 | Window Closed / Lapsed |