Magnetic recording system for camera using film with magnetic recording portion

A magnetic recording apparatus for a camera using a film with a magnetic recording portion, comprising:

• magnetic head means for recording/reproducing data on/from a predetermined position of said magnetic recording portion of said film;
• magnetic data control means for controlling the recording/reproducing operation of said magnetic head means;
• motor control means for controlling motors for winding and rewinding said film;
• movement detecting means for detecting movement of said film when said film is wound;
• electrically erasable nonvolatile storage means for storing at least a part of the data;
• and
• microcomputer means for controlling said magnetic recording apparatus for said camera, said microcomputer means causing said storage means to store photographic data, causing said motor control means to wind said film, and causing said magnetic head means through said magnetic data control means to record the photographic data on said magnetic recording portion at a timing in accordance with an output from said movement detecting means after a photographic operation corresponding to one frame of said film is completed, receiving the photographic data reproduced by said magnetic head means and the photographic data stored in said storage means to determine whether the two photographic data coincide with each other when said film is rewound, and causing said magnetic head means through said magnetic data control means to re-record the photographic data on said magnetic recording portion if incoincidence is determined.

A magnetic recording apparatus for a camera using a film with a magnetic recording portion, comprising:

• magnetic recording means for recording photographic data on said magnetic recording portion when said film is wound after photography corresponding to one frame is completed;
• storage means for storing the photographic data after the photography corresponding to one frame is completed;
• magnetic reproducing means for reproducing the photographic data recorded on said magnetic recording portion while said film is rewound;
• determining means for determining whether the photographic data reproduced by said magnetic reproducing means coincides with the photographic data stored in said storage means;
• and
• erasing means for erasing recorded data while the film is wound by one frame, when said determining means determines that the two photographic data do not coincide with each other.

A magnetic recording apparatus for a camera using a film with a magnetic recording portion, comprising:

• magnetic recording means for recording photographic data on said magnetic recording portion;
• storage means for storing the photographic data recorded by said magnetic recording means;
• magnetic reproducing means for reproducing the photographic data recorded by said magnetic recording means;
• comparing means for comparing the photographic data reproduced by said magnetic reproducing means with the photographic data stored in said storage means;
• and
• incoincidence processing means for, when said comparing means detects incoincidence between the two photographic data, processing the photographic data recorded on said magnetic recording portion in which the incoincidence is detected, wherein said incoincidence processing means causes said magnetic recording means to re-record the photographic data on said magnetic recording portion.

A camera using a photosensitive film having a magnetic recording portion, comprising:

• a camera body;
• film feed means, mounted in said camera body, for feeding said film;
• magnetic recording means for recording data on said magnetic recording portion on said film;
• magnetic reproducing means for reproducing data from said magnetic recording portion on said film;
• data creating means for creating data unique to a frame in response to a photographic operation with respect to the frame;
• nonvolatile storage means for storing data created by said data creating means;
• recording control means for causing said magnetic recording means to record the data created by said data creating means on said magnetic recording portion on said film while said film is wound by said film feed means after a photographic operation is completed;
• reproduction control means for causing said magnetic reproducing means to reproduce the data recorded on said magnetic recording portion while said film is rewound by said film feed means after completion of all photography with respect to said film;
• determining means for, when data, of each frame, reproduced by said reproducing means and corresponding data stored in said nonvolatile storage means do not coincide with each other, determining that the data is not properly recorded on said magnetic recording portion on said film;
• and
• auxiliary means for executing an operation corresponding to a recording error when said determining means determines that the data is not properly recorded.

A camera in which a photosensitive film having a magnetic recording portion can be mounted therein, comprising:

• a camera body;
• film feed means, mounted in said camera body, for feeding said film;
• magnetic recording means for operating said film feed means and recording photographic data of each frame on said magnetic recording portion on said film in synchronism with movement of said film;
• and
• determining means for determining whether the photographic data of each frame is properly recorded on said magnetic recording portion of said film, said determining means including:
• storage means for storing photographic data for all frames;
• reproducing means for operating said film feed means and reproducing data recorded on said magnetic recording portion on said film in synchronism with movement of said film, said reproducing means and said magnetic recording means including a single common magnetic head;
• and
• comparing means for, when the reproduced data and the photographic data stored in said storage means do not coincide with each other, determining that the photographic data of each of the frames is not properly recorded on said magnetic recording portion of said film.

A magnetic recording apparatus for a camera using a film having a magnetic recording portion, comprising:

• magnetic recording means for recording data on said magnetic recording portion while said film is wound;
• magnetic reproducing means for reproducing the data recorded by said magnetic recording means while said film is rewound after completion of all photography with respect to the film;
• determining means for determining whether the data reproduced by said magnetic reproducing means is correct;
• and
• processing means for performing predetermined processing when said determining means determines that there is an error in the reproduced data.

A camera using a photosensitive film having a data recording portion, comprising:

• a camera body;
• recording means, mounted in said camera body, for recording data unique to each photographic frame on said data recording portion while moving said film;
• reproducing means for reproducing the data recorded on said recording portion, at a predetermined timing after the recording operation by said recording means is completed for all frames, while moving said film;
• and
• check means for checking a recording error in the data reproduced by said reproducing means.

A magnetic data recording method for a camera in which a film having a magnetic recording portion can be mounted therein, comprising the steps of:

• recording data unique to each photographic frame on said magnetic recording portion while said film is wound;
• reproducing the data recorded on said magnetic recording portion while said film is rewound after completion of all photography with respect to the film;
• and
• checking the presence/absence of a recording error in accordance with a reproduction result.