US5155511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera using film with magnetic memory
Assignee: Canon Inc
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Filing: 1991-05-29
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Granted: 1992-10-13
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Expires: 2011-05-29
Abstract
Abstract There is provided a camera using a film with a magnetic memory. The camera capable of reading or writing information with respect to the magnetic memory of the film includes a movable member which moves as the film moves while the film is being fed; a magnetic head for reading or writing the information which magnetic head is provided in the movable member and is moveable together with the movable member; and an amplifying circuit for amplifying a signal output from the magnetic head so as to transmit it to a control circuit of the camera which amplifying circuit is provided in the movable member and is movable together with the movable member.
Inventors
- 👤 Hideo Tamamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:53
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/24; G03B2217/00; G03B2217/24; G03B2217/242; G03B2217/244
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
100 words
A camera capable of reading or writing information with respect to a magnetic memory of a film, comprising: a movable member which moves as the film moves while the film is being fed; a magnetic head for reading or writing the information which magnetic head is provided in said movable member and is movable together with said movable member; and an amplifying circuit for amplifying a signal output from said magnetic head and for transmitting it to a control circuit of the camera which amplifying circuit is provided in said movable member and is movable together with said movable member.
Claim 2
Dependent Claim
100 words
A camera capable of reading or writing information with respect to a magnetic memory of a film, comprising: a movable member which moves as the film moves while the film is being fed; a magnetic head for reading or writing the information which magnetic head is provided in said movable member and is movable together with said movable member; and an amplifying circuit for amplifying a signal output from said magnetic head and for transmitting it to a control circuit of the camera which amplifying circuit is provided in said movable member and is movable together with said movable member.
Claim 3
Dependent Claim
15 words
A camera according to claim 1, wherein said movable member has a magnetic shield function.
Claim 4
Dependent Claim
32 words
A camera according to claim 2 further comprising a shield member for covering a space between said magnetic head and said amplifying circuit, said shield member being provided in said movable member.
Claim 5
Dependent Claim
32 words
A camera according to claim 1 further comprising a shield member for covering the space between said magnetic head and said amplifying circuit, said shield member being provided in said movable member.
Claim 6
Dependent Claim
14 words
A camera according to claim 1, wherein said movable member includes a pressure plate.
Claim 7
Dependent Claim
25 words
A camera according to claim 1, wherein said movable member includes a member for regulating the film surface against the focal plane film is exposed.
Claim 8
Dependent Claim
29 words
A camera according to claim 1, wherein said magnetic head and said amplifying circuit are well-balanced in weight with respect to the center at which said movable member operates.
Claim 9
Dependent Claim
32 words
A camera according to claim 1, wherein an output line of said amplifying circuit is connected to a camera body from a vicinity of the center at which said movable member operates.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-10-13 | 1996-04-13 | 1996-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-13 | 2000-04-13 | 2000-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-13 | 2004-04-13 | 2004-10-13 | $7700.00 | Window Closed / Lapsed |