The present invention relates to splicing of film media and more particularly relates to an apparatus and method whereby a memory is coupled with a film medium splice.
Referring to
Accompanying exposed medium 24 are written instructions 28 provided by various specialists in the production set 18 environment, working according to requirements and scene plans formulated beforehand in a preproduction activity 16. For example, camera 22 can have a crew of three or four members, some of which may provide some form of annotation or instructions for lab 26 or for an editing facility 30. The coupling of written instructions 28 to exposed medium 24 here and in subsequent treatment stages is fairly loose, provided primarily using adhesive labels or handwritten notes attached to film packaging.
Lab 26 performs any necessary processing needed to develop the image content of exposed medium 24. For conventional silver-halide-based film media, successive baths of developer, fixer, and bleach are used, as is well known in the imaging arts; however, lab 26 may also use thermal treatment or other techniques for developing the latent image to provide a developed medium 32 for an editing facility 30. At editing facility 30, developed medium 32 is edited to obtain the best “takes” of a studio session and to provide daily prints 36 or “dailies” as a type of proof for these takes. Editing facility 30 may use one or more scanners 34 and may even digitize complete scenes for editing and for adding digital effects, for example. The final masters 42 are provided as intermediates for mass reproduction of motion picture print films, which are the copies distributed to local theaters. Archival print films 38 are also produced and provided to an archival facility 40.
It must be emphasized that
Not as apparent from the description accompanying
In light of the above observations (i)-(iii) and problems (a)-(d), it can be seen that there is considerable value in reliably coupling information to the motion picture film in its various production and processing stages. In particular, there is considerable value in methods that make information about earlier production steps available to workers who perform subsequent production steps. Further, there might be reasons for making information available in a selective manner, so that, for example, lab 26 may not have access to all of the information about a length of film that was provided at production set 18; however, editing facility 30 may have access to all of the data from both production set 18 and lab 26.
One notable problem with the conventional workflow of
A number of types of memory devices can be coupled to a specific length of motion picture film. Examples of suitable memory devices include bar code labels or other optically encoded devices and magnetic strips or similar magnetically encoded media. RF ID devices offer yet another type of solution for associating a memory storage device with a unit of a consumable imaging medium. RF ID tags have been proposed for use in a wide range of identification and tracking applications, such as with passports and credit cards, as is disclosed in U.S. Pat. No. 5,528,222 to Moskowitz et al. One type of commercially available, low profile RF ID tag is the “TAG-IT INLAY”™ RFID tag available from Texas Instruments, Incorporated, located in Dallas, Tex., USA. This component can be used to provide identifying information about an item to which it is attached, for example. RF ID devices are useful for tracking the location of, characteristics of and usage of documents, books, packages, and other inventory. For example, RF ID tags can be used to track the location of documents and track the chain of custody of such documents within a document management system. RF ID tags offer the advantage of small size, enabling these devices to be unobtrusively attached or hidden within an item. Unlike optical or mechanical equivalents, RF ID tags allow communication regardless of orientation relative to a transceiver. Equipped with an on-board read-write memory, these devices can be used for recording and recall of at least some amount of data related to an item to which they are coupled.
Systems employing RF ID tags typically comprise a read/write element, or RF transceiver, that acts as the interface between the RF ID tag and a computer system of some type that uses and/or provides the stored data. The RF ID tag itself is typically embodied as a transponder, having an integral antenna, adapted to send and receive electromagnetic fields in cooperation with the transceiver, where the electromagnetic field itself contains information to be conveyed to and from a memory on the RF ID tag. Both read/write and read-only versions of RF ID tag are available. Information that is stored in memory on the RFID tag can be used to track, identify, and process an item. The RFID tag memory can also store other information that is to be associated with the item, such as timestamps and vendor identification codes for example.
Commonly assigned U.S. Pat. No. 6,247,857, “Multistage System for Processing Photographic Film” (Wheeler et al.), incorporated herein by reference, discloses the use of an RF ID tag coupled with a memory for tracking the treatment of photographic film throughout the basic multi-stage motion picture film production workflow. In the Wheeler et al. patent, methods for core-to-core transfer of data are disclosed, so that, for a given process such as film exposure, development, or telecine transfer, input data is read from an RF transponder on an input core. This input data is then processed, supplemented with any suitable information for the corresponding motion picture film processing, and rewritten to an RF transponder on an output core. While the system and methods of the Wheeler et al. patent provide a useful mechanism for tracking the processing status for a complete roll of motion picture film medium at each treatment stage, there are inherent limitations to this approach where splices are used to join separate lengths of film.
Splicing techniques are widely used during various stages of motion picture film production and presentation. Referring back to
Splices themselves may be formed using tape or using a combination of ultrasonic welding techniques, heat, and adhesive cement. In general, splices are avoided within a master film and within high-quality print films; however, on dailies and other types of proofs and intermediates from the editing process, splices are often used. Even at the motion picture theater, conventional practices may require the projection staff to splice together feature and trailer films in preparation for the film showing.
At many stages of production, spliced film requires some form of labeling and documentation, so that the film contents can be identified. Since conventional procedures for documenting which lengths of film are spliced into what roll are largely manual, there is significant opportunity for error. It can be appreciated that there is a recognized need for more automated methods for splice detection and for obtaining information on film contained in a spliced length. There would be particular advantages to a method that allowed access to information on any of a number of splices in a roll of film. An ability to automatically detect splices and identify the related visual content can save time and expense during many stages of the production cycle, including audio synchronization, content manipulation and editing, and archival.
It is an object of the present invention to provide identifying information to accompany a recordable medium by coupling a memory with a spliced segment of film medium. With this object in mind, the present invention provides a film splice comprising a memory.
From another aspect, the present invention provides a method for coupling a memory onto a segment of a recordable film medium comprising the step of affixing a splice onto the segment, wherein the splice comprises an addressable memory.
It is a feature of the present invention that the splice itself comprise a memory having encoded information thereon about a segment of recordable film medium to which the splice is affixed. The memory may itself contain all necessary information about the spliced segment, or may comprise an electronic address for accessing information about the spliced segment.
It is an advantage of the present invention that it allows a separate memory to accompany each spliced segment of recordable film medium, so that any number of spliced segments can be provided in a roll of recordable film medium.
It is an advantage of the preferred embodiment of the present invention that it allows access to information about a spliced segment of recordable film medium without the need to unravel a roll of film medium containing the spliced segment.
These and other objects, features, and advantages of the present invention will become apparent to those skilled in the art upon a reading of the following detailed description when taken in conjunction with the drawings wherein there is shown and described an illustrative embodiment of the invention.
While the specification concludes with claims particularly pointing out and distinctly claiming the subject matter of the present invention, it is believed that the invention will be better understood from the following description when taken in conjunction with the accompanying drawings, wherein:
The present description is directed in particular to elements forming part of, or cooperating more directly with, apparatus in accordance with the invention. It is to be understood that elements not specifically shown or described may take various forms well known to those skilled in the art.
The following description of the present invention is directed primarily to supporting the transfer of data for various operations performed upon a film medium used for motion pictures, due to the complex nature of the film production workflow and to the number of different facilities and functions that have a role in this workflow. However, it must be noted that the methods and apparatus of the present invention could be more broadly applied to any type of recordable film medium that, as it proceeds through a treatment or set of operations, is wrapped about itself, such as on a film core or in a reel, for example. Other types of film media to which the present invention could be applied also include photographic negative film or wound photographic paper, as well as magnetic tape media, for example.
For an understanding of the description that follows, it is instructive to note the broad use of the term “coupled” as used herein, as distinguished from the understanding of this term as used in prior art. In prior art embodiments, such as the in RF ID embodiment noted in the background with respect to U.S. Pat. No. 6,247,857, a memory itself is coupled to a length of motion picture film by physical attachment to film core 14. That is, coupling is achieved by direct attachment of a device containing the memory, such as an RF transponder. However, this type of coupling may provide limited memory capacity and is not readily adaptable for identifying spliced film segments.
The term “memory” is used in a broad context within this disclosure, to indicate a suitable type of data storage mechanism, which can include solid-state memory devices, magnetic storage devices including magnetic disks, or optical storage devices, for example. Memory can be volatile or non-volatile, or can include both volatile and non-volatile components.
Referring to
Referring to
Referring to
Referring to
System 90 may read and, optionally, write to memory 62 stored solely on one or more splicing elements 60. Alternately, information corresponding to splicing element 62 may be stored within an external memory 92 accessed through a networked server 94, which may be remotely located on a network 88. In this case, memory 62 on splicing element 60 contains a pointer to an address on external memory 92. This networked arrangement allows storage of a considerable amount of data for each splice 50, well in excess of the typical storage capacity of splicing element 60 devices that are currently available.
In a “read-only” embodiment, workstation 84 may not write any new data to memory 62 on splicing element 60, but may merely record data at the appropriate location in networked external memory 92. With such an embodiment, it would not be necessary for interface component 80 to have full read/write capability; instead, it would be sufficient to have each splicing element 60 be uniquely encoded, so that film segments 70, 72 are thereby uniquely identified. The job of tracking each unique encoding would be performed using external memory 92.
Information Stored in Coupled Memory 62 for Film Segment 70
By way of example, and not by way of limitation, Table 2 lists some of the metadata available from media manufacturer 10 for storing in memory 62 that is coupled to film segment 70 for newly manufactured motion picture film 12.
Information Stored in Coupled Memory 62 from Production Set 18
As was shown in
Audio synchronization information can also be stored in coupled memory 62 for film segment 70. Conventional methods synchronize audio on production set 18 using a clapboard. At editing facility 30, developed medium 32 is manually scanned in order to locate the clapboard indicating the beginning of each scene, so that synchronization with taped audio content can be performed. Using coupled memory 62, however, eliminates the need for manually searching for the clapboard image. Instead, camera 22 can simply record and store start and end data for each segment 70, allowing automation of this synchronization activity.
Among the data storage capabilities of networked memory 92 on networked server 94 is the ability to store audio content corresponding to film segment 70. While the audio content from a film shooting travels to editing facility 30 by a separate path for incorporation of the soundtrack, there can be considerable value in storing the audio content for film segment 70 in a memory 62 coupled to that length of film segment 70. While it would be possible to store all of the audio content in memory 62 on splicing element 60, other arrangements may be more practical and require less memory 62 storage. For example, a low-resolution copy of audio could be stored for scene takes on film segment 70. As another example, audio data storage could be used for recording comments by the director or by members of the crew for camera 22 or other production teams. Such verbal instructions could be of value for the work performed in editing facility 30, for example. Where coupled memory 62 is stored on a separate networked server 94, the complete audio content of a film shooting could be stored and associated with film segment 70 using splicing element 60.
Information Stored in Coupled Memory 62 by Lab 26
As was described with reference to
Information Stored in Coupled Memory 62 by Editing Facility 30
As was described with reference to
Data Flow and Networking
As is shown in the above description, particularly with reference to Tables 2-5, each successive operation performed on film segment 70 can provide data that is useful to those who perform subsequent operations. Thus, for example, with reference to
Splicing element 60, uniquely encoded for a specific film segment 70, facilitates the logical coupling of film segment 70 content to a location in networked memory 92. Optionally, some information can also be stored within memory 62 on splicing element 60. To access the stored data in coupled network memory 92, workstation 84, or other control logic processor, cooperates with interface component 80 to obtain the encoded address data from splicing element 60. Once this information is obtained, workstation 84 transmits an instruction or request, incorporating this address, over network 88. Along with the address, workstation 84 may also be required to provide authentication and password data to enable access. The complete instruction to memory 92 may be in proprietary format or may be in the form of a standard network request such as an HTTP (Hypertext Transfer Protocol) request, similar to that used for Internet browsers, or an SQL instruction, such as those used for database queries, for example. A database system, such as a database server available from ORACLE Corporation, could be used for networked memory 92.
Throughout processing of film segment 70, one or more networked memories 92 may be employed. Any number of alternate arrangements are possible, including the use of a single networked server 94 for one or more operations or of shared resources between any two or more operations. Similarly, it may be possible to store some portion or all of memory 62 on different servers or workstations. Alternative embodiments, in which networked memory 92 is stored differently during different operations, may also have advantages. For example, lab 26 may not provide connection to a remote database server connected as networked server 94, but may only obtain and provide information by reading from and writing to an RF ID transceiver that serves as splicing element 60 having an integral memory 62 with just enough data capacity for lab 26 operations. In this way, there may be enough information shared with lab 26 for performing the function of developing film segment 70 to provide developed medium 32, without requiring on-line connection of lab 26 with networked server 94.
There may be reasons for allowing only partial contents of networked memory 92 to be shared with a facility that performs any one function. For example, it may not be desirable to provide lab 26 staff with access to all information generated at production set 18. Much of the information may be superfluous, while some information may be sensitive. The method of the present invention allows partial disclosure of stored data in coupled memory 62 or 92, using conventional techniques for protected access to selective data, as are well known in the database and information technology arts. Thus, for example, the password assigned to lab 26 might have specific permission for access to some data contents of networked memory 92, but not to other contents.
Information stored in networked memory 92 can be used in conjunction with other software applications running on networked server 94 or on workstation 84 or other control logic processor. Different operations within production set 18, lab 26, editing facility 30, or elswhere can be modified, optimized, or even disabled based on this stored information.
It can be appreciated that there would be advantages in providing a networked storage solution, such as is illustrated in
The invention has been described in detail with particular reference to certain preferred embodiments thereof, but it will be understood that variations and modifications can be effected within the scope of the invention as described above, and as noted in the appended claims, by a person of ordinary skill in the art without departing from the scope of the invention. For example, there can be additional metadata stored in memory 62 to support accounting and tracking functions. The present invention can be used with any number of different types of networks 88, including local- or wide-area networks, using suitable standard protocols such as ethernet or Token Ring, or using proprietary protocols. The present invention can be used with any of a number of types of recordable film media, including negative and positive films and magnetic film media, for example.
Thus, what is provided is a method for coupling data to a splice for a segment of recordable film media.