# US 5,353,078 A · Camera having a magnetic recording device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,353,078 A - Document ID: US5353078A - Status: Granted - Kind: A - Application number: 08/183,244 - Filed: 1994-01-19 - Granted: 1994-10-04 - Earliest claimed: 1990-11-07 - Assignees: Canon Kabushiki Kaisha - Inventors: Chikara Aoshima - Web page: https://patentgrep.com/patent/US5353078A ## CPC - G03B 17/24: with means for separately producing marks on the film, e.g. title, time of exposure - G03B 2217/244: Magnetic devices - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) ## Abstract In a camera which includes a magnetic head which writes into and/or reads from a magnetic storage portion provided on a film while the film is conveyed. A magnetic head is positioned to stay away from a film when the film is conveyed without being exposed, such as during pre-winding, and is positioned to contact the film when the film is conveyed one frame after an exposure. Such positioning operation is drivingly connected to film-conveying operation by a simple mechanism. ## Claims ### Claim 1 A camera in which a magnetic head writes into and/or reads from a magnetic record carrier provided on a film, comprising: film-conveying means for conveying the film; restricting means for restricting a relative position between the magnetic head and the film edge and which is shiftable between a restricting position and a non-restricting position, wherein said restricting means, when in said restricting position, contacts the film edge during the conveying of the film so as to regulate the relative position between the magnetic head and the film edge and, when in said non-restricting position, is maintained out of contact with the film edge during the conveying of the film; and controlling means for maintaining said restricting means at the restricting position and prohibiting the shift to the non-restricting position during the operation of said magnetic head. ### Claim 2 (depends on 1) A camera according to claim 1, wherein said magnetic head operates at least when one frame of the film is being conveyed after an exposure thereof. ### Claim 3 (depends on 1) A camera according to claim 1, wherein said restricting means is provided on a film platen which is movable in the direction of a width of the film. ### Claim 4 (depends on 1) A camera according to claim 1, wherein said restricting means is carried by said magnetic head. ### Claim 5 A camera in which a magnetic head writes into and/or reads from a magnetic record carrier provided on a film, comprising: film-conveying means for conveying the film; restricting means for restricting a relative position between the magnetic head and the film edge and which is shiftable between a restricting position and a non-restricting position, wherein said restricting means, when in said restricting position, contacts the film edge during the conveying of the film so as to regulate the relative position between the magnetic head and the film edge and, when in said non-restricting position, is maintained out of contact with the film edge during the conveying of the film; and controlling means for shifting said restricting means between the restricting and the non-restricting positions. ### Claim 6 (depends on 5) A camera according to claim 5, wherein said controlling means maintains said restricting means in said non-restricting position when said film is being conveyed in a first direction by said film-conveying means and maintains said restricting means in said restricting position when said film is being conveyed in a second direction by said film-conveying means. ### Claim 7 (depends on 6) A camera according to claim 6, wherein said camera continuously conveys said film in said first direction and conveys said film in said second direction in a frame-by-frame fashion after exposure of each frame. ### Claim 8 A camera, comprising: a head unit which writes into and/or reads from a record carrier provided on a film, said head unit being shiftable between a recording position and a non-recording position; film-conveying means having a first mode and a second mode, said film-conveying means in its first mode conveying the film in a first direction and in its second mode in a second direction, which is opposite to the first direction; and controlling means being coupled with said film-conveying means, said controlling means maintaining said head unit in the non-recording position when said film-conveying means is in its first mode and the film is being conveyed in the first direction, and said controlling means maintaining said head unit in said recording position when said film-conveying means is in its second mode, wherein the operation for exposing one frame of the film and the operation for conveying one frame of the film are performed repeatedly when said film-conveying means is in its second mode. ### Claim 9 (depends on 6) A camera according to claim 6, wherein said head unit comprises a read/write head and a pressing element for pressing the film therebetween. ### Claim 10 (depends on 8) A camera according to claim 8, wherein at said recording position, said read/write head and said pressing element are positioned to contact said film, and at said non-recording position, either said read/write head or said pressing element or both are positioned to avoid contact with said film. ### Claim 11 (depends on 8) A camera according to claim 8, wherein said camera continuously conveys said film when said film-conveying means is in said first mode and conveys said film in a frame-by-frame fashion after each exposure of a frame when said film-conveying means is in said second mode. ### Claim 12 (depends on 9) A camera according to claim 9, wherein said read/write head is a magnetic head and said record carrier of the film is a magnetic record carrier. ### Claim 13 (depends on 12) A camera according to claim 12, wherein said magnetic head and said pressing element pressingly sandwich said magnetic record carrier therebetween to perform writing and/or reading at the recording position and release the film at the non-recording position. ### Claim 14 (depends on 8) A camera according to claim 8, further comprising a film-winding spool, wherein in the first mode said film-conveying means conveys a film from a film cartridge to said film-winding spool, and in the second mode conveys the film one frame at a time from said film-winding spool to the film cartridge after each exposure. ### Claim 15 (depends on 8) A camera according to claim 8, further comprising a motor, wherein said film-conveying means operates in the first mode by said motor driving in a first direction and operates in the second mode by said motor driving in a second direction, which is opposite to the first direction; and wherein said controlling means shifts said head unit between the recording and the non-recording positions according to the driving direction of said motor.