Abstract:
A method includes impacting at least one identifier on a section of passing film for identifying the film as a source for content copied from the film.

Description:
This application claims the benefit, under 35 U.S.C. §365 of International Application PCT/US2006/049,205, filed 26 Dec. 2006, which was published in accordance with PCT Article 21(2) on 3 Jul. 2008, in English. 
     FIELD OF THE INVENTION 
     The present invention generally relates to film and more particularly to marking an identifier on a film. 
     BACKGROUND OF THE INVENTION 
     The large amounts of resources invested in film production makes it imperative that film content be protected from unauthorized copying or illegal distribution. Encryption and encoding techniques exist for protecting digital forms of film content. These techniques do not protect content on film negatives from unauthorized copying. Processing of film negatives by laboratories must be secure to prevent unauthorized copying or pirating of copyrighted film content. 
     Security markings or codes have been used in positive film prints, but these do not aid in identifying DVDs or computer files of motion pictures processed by laboratories from which unauthorized copying of film content occurred. One aspect of preventing unauthorized copying is to trace the source of the film processing laboratory that had possession of a film negative from which content was pirated or copied. Previous coding of film negatives required producing defects into the film, which may be deemed unacceptable to creative teams at film or motion picture studios. 
     Accordingly, there is a need for easy identification of the facility or laboratory in possession of a particular element of a film negative processed that was used to create a unauthorized copying of copyrighted film content. 
     SUMMARY OF THE INVENTION 
     A method includes impacting at least one identifier on a section of passing film for identifying the film as a source for content copied from the film. 
     An apparatus includes a guide having an opening and for being positioned over a film and an implement for being passed through the opening and impacting an identifier on the film. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The advantages, nature, and various additional features of the invention will appear more fully upon consideration of the illustrative embodiments now to be described in detail in connection with accompanying drawings wherein: 
         FIG. 1  is a schematic diagram of an exemplary device for marking an identifier code on a film negative in accordance with the present invention; and 
         FIG. 2  is perspective diagram illustrating marking a film negative with identifier coding in accordance with the present invention. 
     
    
    
     It should be understood that the drawings are for purposes of illustrating the concepts of the invention and are not necessarily the only possible configuration for illustrating the invention. 
     DETAILED DESCRIPTION OF THE INVENTION 
     Referring now to the schematic diagram  10  of  FIG. 1 , there is shown a device for placing a physical marking on a film negative  1  with a coding for identifying the particular film  1  sample. The diagram  20  of  FIG. 2  shows a perspective view of an application of the inventive coding marking according to  FIG. 1 . The inventive marking of a film negative preferably places a mark or marks onto the film in the most inconspicuous areas of the film, so as to avoid being detected by film pirates or by the general viewing public. 
     A record of the film coding can be used to identify which film duplicate was the source for unauthorized copying of film content in the film duplicate. By tracking which film sample was processed by a particular laboratory, the unique coding can be obtained from unauthorized copies of the film content and the laboratory that processed the film duplicate and was the source for the unauthorized film content copy can be identified. 
     The film  1  sample is passed under a pin like implement  3  which is impacted on the film  1  to leave a physical identifier on a location of the film that does not adversely affect the media content on the film. Preferably the pin like implement is passed through a guide  2  or block which can assure repeatability. In the preferred embodiment, a mark or marks can be placed onto the film in the most inconspicuous areas of the film, so as to avoid being detected by film pirates or by the general viewing public. The pin like implement can be passed through the guide to impact the film duplicate in a location where the film content is not compromised. The processed inter-negative duplicate of an original film is hand-coded or may be automatically coded at distinct locations with the pin-like implement  3 . 
     Turning now to  FIG. 2 , a film  1  section is passed between a bottom plate  4  and top plate  12 . The bottom plate optionally has guide pins  7 , 8  that mate with respective guide holes  9 ,  5  on the top plate, to aid in maintaining alignment between the bottom and top plates  4 , 12 . The guide  2 , shown in block form, is positioned over the top plate and allows the pin like implement  3  to pass through an opening and impact the film to leave an identifier mark  6  on the film  1 . The pin  2  can be passed through the guide in a particular sequence or timing to impact a distinct marking pattern or code on the film  1  that can identify the film  1 . Alternatively, the guide can be configured with a pattern of openings for passing the pin implement  3  through to impact a distinct impact pattern or code on the film  1 . Alternatively again, multiple pin like implements can be passed through respective multiple openings in the guide to impact a unique pattern of identifiers. 
     Having described a preferred embodiment for impacting a coding pattern on a film, which is intended to be illustrative and not limiting, it is noted that modifications and variations can be made by persons skilled in the art in light of the above teachings. For example, the guide  2  is shown with three linearly aligned openings  13 , 14 , 15 , but a different number and pattern of opening can be utilized to uniquely identify the film. It is therefore to be understood that changes may be made in the particular embodiments of the invention disclosed which are within the scope and spirit of the invention as outlined by the appended claims. Having thus described the invention with the details and particularity required by the patent laws, what is claimed and desired protected by Letters Patent is set forth in the appended claims.