EP0435277A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Camera using film having magnetic storage part
Assignee: Canon Inc
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Filing: 1990-12-27
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Granted: —
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Expires: 2010-12-27
Abstract
Abstract A camera using a film which has a magnetic storage part comprises a magnetic head which is arranged to read or write information out of or into the magnetic storage part of the film; and a release device for releasing a positional relation between the magnetic head and the film from an information reading or writing state in which the magnetic head reads or writes the information, until the film is wound around a spool or when the film is stopped.
Inventors
- 👤 Hideo C/O Tamagawa Jigyosho Tamamura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 21:41
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/24; G03B2217/00; G03B2217/24; G03B2217/242; G03B2217/244
Claims Analysis
Total Claims: 48
Claim 1
Independent Claim
86 words
A camera adapted to use a film having a magnetic storage part, comprising: a) a magnetic head arranged to read or write information out of or into said magnetic storage part of the film; and b) release means for performing a releasing action for releasing a positional relation between said magnetic head and the film from an information reading or writing state in which said magnetic head reads or writes said information, until the film is wound around a spool or when the film is stopped.
Claim 2
Dependent Claim
26 words
A camera according to claim 1, wherein said release means includes determining means for determining whether or not the film has been wound around the spool.
Claim 3
Dependent Claim
24 words
A camera according to claim 2, wherein said determining means includes transport-amount detecting means for detecting an amount of transported portions of the film.
Claim 4
Dependent Claim
53 words
A camera according to claim 3, wherein said release means includes means for keeping said magnetic head in a released state in which said magnetic head is released from said information reading or writing state, until said transport-amount detecting means detects that a predetermined amount of portions of the film has been transported.
Claim 5
Dependent Claim
37 words
A camera according to claim 3, wherein said determining means includes timer means for counting a predetermined length of time after said predetermined amount of portions of the film has been detected by said transport-amount detecting means.
Claim 6
Dependent Claim
28 words
A camera according to claim 5, wherein said release means includes means for keeping said released state until said timer means finishes counting said predetermined length of time.
Claim 7
Dependent Claim
45 words
A camera according to claim 1, wherein said release means includes means for retracting said magnetic head away from a surface of the film so as to release the positional relation between said magnetic head and the film from said information reading or writing state.
Claim 8
Dependent Claim
59 words
A camera according to claim 1, wherein said release means includes pushing means for pushing a surface of the film against said magnetic head, and is arranged to retract said pushing means away from the surface of film so as to release the positional relation between said magnetic head and the film from said information reading or writing state.
Claim 9
Dependent Claim
20 words
A camera according to claim 1, wherein said release means includes a motor arranged to carry out said releasing action.
Claim 10
Dependent Claim
22 words
A camera according to claim 1, wherein said release means includes an electromagnetic driving member arranged to carry out said releasing action.
Claim 11
Dependent Claim
20 words
A camera according to claim 1, wherein said release means includes a plunger arranged to carry out said releasing action.
Claim 12
Dependent Claim
39 words
A camera according to claim 1, further comprising actuating means for bringing the positional relation between said magnetic head and the film into the information reading or writing state in which said magnetic head reads or writes said information.
Claim 13
Dependent Claim
22 words
A camera according to claim 12, wherein said actuating means includes means for acting in the process of transport of the film.
Claim 14
Dependent Claim
13 words
A camera according to claim 12, wherein said actuating means includes a motor.
Claim 15
Dependent Claim
14 words
A camera according to claim 12, wherein said actuating means includes an elastic member.
Claim 16
Dependent Claim
37 words
A camera according to claim 1, wherein said release means includes deactivating means for rendering said release means inoperative before the transport of the film comes to a stop after the film is wound around the spool.
Claim 17
Dependent Claim
24 words
A camera according to claim 1, wherein said release means includes actuating means for actuating said release means during the process of an exposure.
Claim 18
Dependent Claim
42 words
A camera according to claim 1, wherein said release means includes deactivating means for rendering said release means inoperative during the process of winding one frame portion of the film or during the process of rewinding one frame portion of the film.
Claim 19
Dependent Claim
31 words
A camera according to claim 1, wherein said release means includes activating means for rendering said release means operative during the process of continuous winding or continuous rewinding of the film.
Claim 20
Dependent Claim
46 words
A camera according to claim 1, wherein said film includes a film which is of the kind being contained in its entirety within a film cartridge and is arranged to be pushed out and wound around the spool after the camera is loaded with the cartridge.
Claim 21
Dependent Claim
82 words
A camera adapted to use a film having an information storage part, comprising: a) a head arranged to read or write information out of or into said storage part of the film; and b) release means for performing a releasing action for releasing a positional relation between said head and the film from an information writing or reading state in which said head reads or writes said information, until the film is wound around a spool or when the film is stopped.
Claim 22
Dependent Claim
43 words
A camera according to claim 21, wherein said release means includes means for retracting said head away from a surface of the film so as to release the positional relation between said head and the film from said information reading or writing state.
Claim 23
Dependent Claim
58 words
A camera according to claim 21, wherein said release means includes pushing means for pushing a surface of the film against said head, and is arranged to retract said pushing means away from the surface of said film so as to release the positional relation between said head and the film from said information reading or writing state.
Claim 24
Dependent Claim
37 words
A camera according to claim 21, further comprising actuating means for bringing the positional relation between said head and the film into the information reading or writing state in which said head reads or writes said information.
Claim 25
Dependent Claim
37 words
A camera according to claim 21, wherein said release means includes deactivating means for rendering said release means inoperative before the transport of the film comes to a stop after the film is wound around the spool.
Claim 26
Dependent Claim
24 words
A camera according to claim 21, wherein said release means includes actuating means for actuating said release means during the process of an exposure.
Claim 27
Dependent Claim
42 words
A camera according to claim 21, wherein said release means includes deactivating means for rendering said release means inoperative during the process of winding one frame portion of the film or during the process of rewinding one frame portion of the film.
Claim 28
Dependent Claim
31 words
A camera according to claim 21, wherein said release means includes activating means for rendering said release means operative during the process of continuous winding or continuous rewinding of the film.
Claim 29
Dependent Claim
82 words
A camera adapted to use a film having a magnetic storage part, comprising: a) a magnetic head arranged to read or write information out of or into said magnetic storage part of the film; and b) release means for performing a releasing action for releasing a positional relation between said magnetic head and the film from an information reading or writing state in which said magnetic head reads or writes said information, except when said magnetic head reads or writes said information.
Claim 30
Dependent Claim
45 words
A camera according to claim 29, wherein said release means includes means for retracting said magnetic head away from a surface of the film so as to release the positional relation between said magnetic head and the film from said information reading or writing state.
Claim 31
Dependent Claim
59 words
A camera according to claim 29, wherein said release means includes pushing means for pushing a surface of the film against said magnetic head, and is arranged to retract said pushing means away from the surface of film so as to release the positional relation between said magnetic head and the film from said information reading or writing state.
Claim 32
Dependent Claim
39 words
A camera according to claim 29, further comprising actuating means for bringing the positional relation between said magnetic head and the film into the information reading or writing state in which said magnetic head reads or writes said information.
Claim 33
Dependent Claim
37 words
A camera according to claim 29, wherein said release means includes deactivating means for rendering said release means inoperative before the transport of the film comes to a stop after the film is wound around the spool.
Claim 34
Dependent Claim
24 words
A camera according to claim 29, wherein said release means includes actuating means for actuating said release means during the process of an exposure.
Claim 35
Dependent Claim
42 words
A camera according to claim 29, wherein said release means includes deactivating means for rendering said release means inoperative during the process of winding one frame portion of the film or during the process of rewinding one frame portion of the film.
Claim 36
Dependent Claim
31 words
A camera according to claim 29, wherein said release means includes activating means for rendering said release means operative during the process of continuous winding or continuous rewinding of the film.
Claim 37
Dependent Claim
77 words
A camera adapted to use a film having an information storage part, comprising: a) a head arranged to read or write information out of or into said storage part of the film; and b) release means for performing a releasing action for releasing a positional relation between said head and the film from an information reading or writing state in which said head reads or writes said information, except when said head reads or writes said information.
Claim 38
Dependent Claim
43 words
A camera according to claim 37, wherein said release means includes means for retracting said head away from a surface of the film so as to release the positional relation between said head and the film from said information reading or writing state.
Claim 39
Dependent Claim
58 words
A camera according to claim 37, wherein said release means includes pushing means for pushing a surface of the film against said head, and is arranged to retract said pushing means away from the surface of said film so as to release the positional relation between said head and the film from said information reading or writing state.
Claim 40
Dependent Claim
37 words
A camera according to claim 37, further comprising actuating means for bringing the positional relation between said head and the film into the information reading or writing state in which said head reads or writes said information.
Claim 41
Dependent Claim
37 words
A camera according to claim 37, wherein said release means includes deactivating means for rendering said release means inoperative before the transport of the film comes to a stop after the film is wound around the spool.
Claim 42
Dependent Claim
24 words
A camera according to claim 37, wherein said release means includes actuating means for actuating said release means during the process of an exposure.
Claim 43
Dependent Claim
42 words
A camera according to claim 37, wherein said release means includes deactivating means for rendering said release means inoperative during the process of winding one frame portion of the film or during the process of rewinding one frame portion of the film.
Claim 44
Dependent Claim
31 words
A camera according to claim 37, wherein said release means includes activating means for rendering said release means operative during the process of continuous winding or continuous rewinding of the film.
Claim 45
Dependent Claim
92 words
A magnetic-storage-part information transmitting device for a camera adapted to use a film having a magnetic storage part, comprising: a) a magnetic head arranged to read or write information out of or into said magnetic storage part of the film; and b) release means for performing a relasing action for releasing a positional relation between said magnetic head and the film from an information reading or writing state in which said magnetic head reads or writes said information, until the film is wound around a spool or when said film is stopped.
Claim 46
Dependent Claim
88 words
A magnetic-storage-part information transmitting device for a camera adapted to use a film having a magnetic storage part, comprising: a) a magnetic head arranged to read or write information out of or into said magnetic storage part of the film; and b) release means for performing a releasing action for releasing a positional relation between said magnetic head and the film from an information reading or writing state in which said magnetic head reads or writes said information, except when said magnetic head reads or writes said information.
Claim 47
Dependent Claim
87 words
An information-storage-part information transmitting device for a camera adapted to use a film having an information storage part, comprising: a) a head arranged to read or write information out of or into said storage part of the film; and b) release means for performing a releasing action for releasing a positional relation between said head and film from an information writing or reading state in which said head reads or writes said information, until the film is wound around a spool or when the film is stopped.
Claim 48
Dependent Claim
83 words
An information-storage-part information transmitting device for a camera adapted to use a film having an information storage part, comprising: a) a head arranged to read or write information out of or into said storage part of the film; and b) release means for performing a releasing action for releasing a positional relation between said head and the film from an information reading or writing state in which said head reads or writes said information, except when said head reads or writes said information.
References Cited (Backward Citations)
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