Title:
【発明の名称】仮想データ識別子を有するフィルム上の専用磁気トラックを用いるフィルム情報交換システム
Document Type and Number:
Japanese Patent JP2875835
Kind Code:
B2
Abstract:
A virtually transparent magnetic layer is included as an additional layer in a color negative film. Information exchange between various users of the film-such as (for example) the film manufacturer, the camera user, the dealer and photofinisher-is carried via plural longitudinal magnetic tracks on the film, each track being dedicated to the writing and reading of a predetermined set of related parameters. The photofinisher-dedicated track locations fill the exposed image area of each frame. The camera-dedicated tracks lie along the edges of the film between the film perforations, the perforations being widely spaced for this purpose. All data is recorded as individual pieces of information individually identified by virtual data identifiers so as to minimize the recording overhead of non-information-bearing data.
Inventors:
ROBISON GEIRII RII
Application Number:
JP51105389A
Publication Date:
March 31, 1999
Filing Date:
October 04, 1989
Export Citation:
Assignee:
IISUTOMAN KODATSUKU CO
International Classes:
G02F1/1333; G02F1/135; G03B17/24; G03B31/00; G03B27/46; G03D15/00; G11B5/09; G11B27/32; (IPC1-7): G03B31/00; G03B17/24; G11B5/09
Domestic Patent References:
| JP4860552A | ||||
| JP5778530A |
Other References:
【文献】米国特許3379095(US,A)
Attorney, Agent or Firm:
Masatake Shiga (1 person outside)