US5016030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for magnetically reading and recording on film
Assignee: Eastman Kodak Co
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Filing: 1990-07-03
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Granted: 1991-05-14
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Expires: 2010-07-03
Abstract
Abstract A magnetic head is mounted on a camera film platen which is supported for constrained movement relative to the camera body to maintain a precise relationship between an information track recorded on the film and a film edge. The magnetic head is pivotally mounted on the film platen. Means are provided to establish one angular orientation of the head to establish one angular orientation of the head with respect to the film during prewind to read information recorded by the film manufacturer and a second different angular orientation during transport of the film in the opposite direction during film exposure to record information relating to film exposure. This enables a camera to distinguish between information recorded by the manufacturer and information recorded by a camera to determine if mid-roll interrupt occurred and, if so, the location of the last frame exposed.
Inventors
- 👤 Patricia A. Dwyer
- 👤 Jeffrey R. Stoneham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:23
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/24; G03B7/00; G03B7/24; G03B2217/00; G03B2217/24; G03B2217/242; G03B2217/244
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
102 words
In a photographic apparatus including a body having an exposure opening, a magnetic read/write head, and means for transporting a photographic film over the exposure opening to expose frames of a film, the film having a magnetic surface for magnetically reading and recording information on the film, said camera apparatus comprising: means for supporting the magnetic read/write head in the apparatus; and means for causing the head to assume one angular position relative to the film during movement of the film during movement of the film in one direction and a second angular position relative to the film in an opposite direction.
Claim 2
Dependent Claim
102 words
In a photographic apparatus including a body having an exposure opening, a magnetic read/write head, and means for transporting a photographic film over the exposure opening to expose frames of a film, the film having a magnetic surface for magnetically reading and recording information on the film, said camera apparatus comprising: means for supporting the magnetic read/write head in the apparatus; and means for causing the head to assume one angular position relative to the film during movement of the film during movement of the film in one direction and a second angular position relative to the film in an opposite direction.
Claim 3
Dependent Claim
49 words
The photographic apparatus as claimed in claim 1 wherein said means for causing said head to assume said first and second angular Positions includes means for pivoting said head and means for limiting pivotal movement of said head to pivotal movement between said one and said second angular positions.
Claim 4
Dependent Claim
33 words
The photographic apparatus as claimed in claim 2 wherein said head is positioned at an angle to the film in said one position and substantially Perpendicular to said film in said second position.
Claim 5
Dependent Claim
69 words
The photographic apparatus having an exposure opening and further as claimed in claim 3 wherein said apparatus comprise a camera having an exposure opening and further includes film take-up means for prewinding said film onto a film take-up and means for transporting the film across the exposure opening during film exposure, said head being positioned at said angle during prewind and substantially perpendicular to the film during film exposure.
Claim 6
Dependent Claim
23 words
The photographic apparatus of claim 3 wherein said supporting means pivotally supports said head for pivotal movement between said first and second positions.
Claim 7
Dependent Claim
65 words
The photographic apparatus of claim 5 wherein said supporting means comprises: a bracket having a slot and a circular opening spaced from said slot; and a pair of pins extending from said head and received by said slot and opening, respectively, said head being pivotal about the pin received by the circular opening with the ends of said slot establishing said first and second positions.
Claim 8
Dependent Claim
32 words
The photographic apparatus of claim 3 wherein said head is pivotally mounted on said platen wherein the frictional contact of the head with the film causes said head to assume said positions.
Claim 9
Dependent Claim
111 words
A photographic still camera including a camera body having an exposure opening a magnetic head, means for transporting film having a magnetic surface over the exposure opening to expose frames of the film, and a film platen for retaining the film in an exposure plane, said camera comprising: means for supporting the magnetic head on the film platen to contact the film magnetic surface; and means for causing the head to assume one angular position relative to the film during movement of the film in one direction relative to the exposure opening and in a second angular position relative to the film during movement of the film in an opposite direction.
Claim 10
Dependent Claim
111 words
A photographic still camera including a camera body having an exposure opening a magnetic head, means for transporting film having a magnetic surface over the exposure opening to expose frames of the film, and a film platen for retaining the film in an exposure plane, said camera comprising: means for supporting the magnetic head on the film platen to contact the film magnetic surface; and means for causing the head to assume one angular position relative to the film during movement of the film in one direction relative to the exposure opening and in a second angular position relative to the film during movement of the film in an opposite direction.
Claim 11
Dependent Claim
35 words
The photographic still camera as claimed in claim 8 wherein said head is pivotally mounted on said platen wherein the frictional contact of the head with the film causes said head to assume said positions.
Claim 12
Dependent Claim
104 words
A photographic still camera including a camera body having an exposure opening, a magnetic read/write head means for transporting film having a magnetic surface over the exposure opening to expose frames of the film, a film platen for retaining the film in an exposure plane, and means for prewinding the film onto a film take-up, said camera comprising: means for supporting the magnetic read/write head on the film platen to contact the magnetic surface of the film; and means for causing the head to assume a first angular position relative to the film during film prewind and a second angular position during film exposure.
Claim 13
Dependent Claim
104 words
A photographic still camera including a camera body having an exposure opening, a magnetic read/write head means for transporting film having a magnetic surface over the exposure opening to expose frames of the film, a film platen for retaining the film in an exposure plane, and means for prewinding the film onto a film take-up, said camera comprising: means for supporting the magnetic read/write head on the film platen to contact the magnetic surface of the film; and means for causing the head to assume a first angular position relative to the film during film prewind and a second angular position during film exposure.
Claim 14
Dependent Claim
25 words
The photographic still camera claimed in claim 10 wherein said supporting means pivotallY supports said head for pivotal movement between said first and second positions.
Claim 15
Dependent Claim
67 words
The photographic still camera claimed in claim 11 wherein said supporting means comprises: a bracket having a slot and a circular opening spaced from said slot; and a pair of pins extending from said head and received by said slot and opening, respectively, said head being pivotal about the pin received by the circular opening with the ends of said slot establishing said first and second positions.
References Cited (Backward Citations)
US4270854A
Cited
US4270853A
Cited
US4375071A
Cited
US4613911A
Cited
US4642717A
Cited
US4864445A
Cited
US4843414A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-13 | 1994-11-12 | 1995-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-13 | 1998-11-12 | 1999-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-13 | 2002-11-12 | 2003-05-14 | $7700.00 | Window Closed / Lapsed |