Patent Application
20230024299
Field of the Invention: This invention relates generally to digital cinemas, and more particularly to a digital video cinema system that enables viewers to experience a personal cinema experience.
Description of the Related Art: A multiplex is a movie theater complex with multiple screens within a single complex. They are usually housed in a specially designed building. Sometimes, an existing venue undergoes a renovation where the existing auditoriums are split into smaller ones, or more auditoriums are added in an extension or expansion of the building. The largest of these complexes can sit thousands of people and are sometimes referred to as a megaplex.
Digital cinema refers to adoption of digital technology within the film industry to distribute or project motion pictures as opposed to the historical use of reels of motion picture film, such as 35 mm film. Film reels have to be shipped to movie theaters. A digital movie can be distributed to cinemas in a number of ways: over the Internet or dedicated satellite links, or by sending hard drives or optical discs such as Blu-ray discs. Digital movies are projected using a digital video projector instead of a film projector, are shot using digital movie cameras and edited using a non-linear editing system (NLE).
The NLE is often a video editing application installed in one or more computers that may be networked to access the original footage from a remote server, share or gain access to computing resources for rendering the final video, and to allow several editors to work on the same timeline or project.
Alternatively, a digital movie could be a film reel that has been digitized using a motion picture film scanner and then restored, or, a digital movie could be recorded using a film recorder onto film stock for projection using a traditional film projector. Digital cinema is distinct from high-definition television and does not necessarily use traditional television or other traditional high-definition video standards, aspect ratios, or frame rates. In digital cinema, resolutions are represented by the horizontal pixel count, usually 2K (2048×1080 or 2.2 megapixels) or 4K (4096×2160 or 8.8 megapixels). The 2K and 4K resolutions used in digital cinema projection are often referred to as DCI 2K and DCI 4K. DCI stands for Digital Cinema Initiatives. As digital-cinema technology improved in the early 2010s, most theaters across the world converted to digital video projection.
Digital cinemas can deliver live broadcasts from performances or events. A video projector is used that is an image projector that receives a video signal and projects the corresponding image on a projection display screen using a lens system.
Digital cinema is a method and system for making and showing videos. The basic idea is to use bits and bytes (strings of 1s and 0s) to record, transmit and replay images, rather than using chemicals on film. The main advantage of digital technology (such as a CD) is that it can store, transmit and retrieve a huge amount of information exactly as it was originally recorded. Analog technology loses information in transmission, and generally degrades with each viewing.
Digital cinema affects three major areas of movie-making: production - how the movie is actually made; distribution - how the movie gets from the production company to movie theaters; and projection - how the theater presents the movie.
DCI specifications calls for picture encoding using the ISO/IEC 15444-1 “JPEG2000” (.j2c) standard and use of the CIE XYZ color space at 12 bits per component encoded with a 2.6 gamma applied at projection. Two levels of resolution for both content and projectors are supported: 2K (2048×1080) or 2.2 MP at 24 or 48 frames per second, and 4K (4096×2160) or 8.85 MP at 24 frames per second. The specification ensures that 2K content can play on 4K projectors and vice versa. Smaller resolutions in one direction are also supported (the image gets automatically centered). Later versions of the standard added additional playback rates (like 25 fps in SMPTE mode).
DCI-compliant digital cinema requires a digital projector and a server. A digital file clown as a digital cinema package (DCP). The DCP is copied onto the internal hard drives of the server, which can be via a USB port.
Films are usually encrypted, to prevent illegal copying and piracy. The necessary decryption keys are supplied separately, usually as email attachments and then “ingested” via USB. Keys are time-limited and will expire after the end of the period for which the title has been booked. They are also locked to the hardware (server and projector) that is to display screen the film, so if the theatre wishes to move the title to another display screen or extend the run, a new key must be obtained from the distributor
The playback of the content is controlled by the server using a “playlist”. In addition to listing the content to be played the playlist also includes automation cues that allow the playlist to control the projector, the sound system, and the lighting.
There is a need for a system that enables viewers to experience a personal cinema experience. There is a further need for a digital video cinema system that enables viewers to experience a personal cinema experience at a same location as usual with the same videos in day and date. There is another need for a digital video cinema system that enables viewers to experience a personal cinema experience at a same location as usual with the same videos in day and date in a specific lounge area of their selected cinema, either a s a single or multiple person seat, and with playback under their individual control. Yet there is another need for a digital video cinema system that enables viewers to experience a personal cinema experience that allows viewers to pause the movie, and place the display screen in a position away from them, allowing them to exit their seats.
An object of the present invention is to provide a digital video cinema system that includes a plurality of seats arranged to allow people to experience a social experience.
Another object of the present invention is to provide a digital video cinema system that has reduced noise of neighboring cinema goers.
Yet another object of the present invention is to provide a digital video cinema system that includes a plurality of seats each with its own personal display screen.
A further object of the present invention is to provide a digital video cinema system that enables viewers to experience a personal cinema experience.
A further object of the present invention is to provide a digital video cinema system that enables viewers to experience a personal cinema experience at a same location as usual with the same videos in day and date.
Another object of the present invention is to provide a digital video cinema system that enables viewers to experience a personal cinema experience at a same location as usual with the same videos in day and date in a specific lounge area of their selected cinema.
A further object of the present invention is to provide a digital video cinema system that enables viewers to experience a personal cinema experience at a same location as usual with the same videos in day and date in a specific lounge area of their selected cinema, either a s a single or multiple person seat.
Yet another object of the present invention is to provide a digital video cinema system that enables viewers to experience a personal cinema experience at a same location as usual with the same videos in day and date in a specific lounge area of their selected cinema, either a s a single or multiple person sea, and with playback under their individual control.
Still another object of the present invention is to provide a digital video cinema system that enables viewers to experience a personal cinema experience at a same location as usual with the same videos in day and date in a specific lounge area of their selected cinema, either a s a single or multiple person sea, and with playback under their individual control in a lounge equipped with and allows the ordering of food and beverages at any time.
Another object of the present invention is to provide a digital video cinema system that enables viewers to experience a personal cinema experience that allows viewers to pause the movie.
Yet another object of the present invention is to provide a digital video cinema system that enables viewers to experience a personal cinema experience that allows viewers to pause the movie, and place the display screen in a position away from them, allowing them to exit their seats.
A further object of the present invention is to provide a digital video cinema system that enables viewers to experience a personal cinema experience and allows viewers to view videos not shown at the theater where they are located but can be streamed.
Still another object of the present invention is to provide a digital video cinema system that enables viewers to experience a personal cinema experience and allows viewers to view any video being shown or displayed at the theater where they are at.
These and other objects of the present invention are achieved in a digital video system at a cinema that includes a plurality of personal cinema experience area seats each with a display screen for viewing at least one of a program playing the cinema or steamtable to the cinema. Each seat is positioned at a selected area of the cinema. One or more speakers are provided at each seat. A DCI compliant cinema player is provided for each seat of the plurality of personal cinema experience area seat.
As illustrated in
Each seat 12 has a similar DCI quality experience but provides for a personal cinema experience with individual viewer control of user interface 14. A special designed emissive screen 16, compliant with the DCI display rules in terms of visual quality experience (DCI/CTP compliance), is provided for each seat 12. As a non-limiting example, the user interface 14 runs on a tablet, including but not limited to a IPAD tablet, in order to browse through the day, time, a list of videos shown at the theater site, as well as those available to be streamed into the theater. As a non-limiting example, a viewer can view videos available at the theater site, by selecting a title, playing it, and can also pause it. The pausing can be achieved by entering a entering a booking code valid for a selected number of video playbacks.
In one embodiment, each seat 12 is associated with an immersive binaural headphone 20. As a non-limited example each seat 12 is associated with speakers 20 that play an immersive sound track (Atmos or DTS:X) to the seat occupant. In one embodiment, each seat 12 includes active seat localization 22 that determines if the seat 12 has been moved and prevents any further playback by breaking what is called a « DCI marriage » until a technician enables further playing. In one embodiment, a movement mechanism allows 18 for up, down, and sideway movement of a display screen in order for individual to see the display screen 14 at a desired position. As a non-limiting example, the movement mechanism 18 allows a viewer to lift up the screen, in direct to your height, for view. In one embodiment, the movement mechanism 18 allows for lifting up the display screen 14, relative to one’s height, and for the purpose of allowing a competent display screen angle of view desired by the viewer. As a non-limiting example, the movement mechanism 18 allows for angular 90° up/down movement, as well as side to side movement, of the display screen 14, including but not limited to 45° - 120°, 60°-100°, 80°-90°, 90° and the like.
In one embodiment, a DCI compliant cinema player 24 is provided for each seat. As a non-limiting example, the DCI can be at a base 26 of the seat 12. In one embodiment the server is a DCI server. A plurality of servers is provided, each located at a seat. In one embodiment, the server and the screen are secured together connected using video links. As a non-limiting example, the video links Link to on-line or off-line videos and comply with copyright rules. Videos of newscasts, television shows, films, music videos, advertisements, and the link can be provided with the video links.
In one embodiment each seat 12 has its own server, and can have a high bandwidth which as non-limiting examples can be 4-10 gigabits 5-8 gigabits, 6 or 7 gigabits, and the like. A variety of different servers can be used, including but not limited to: Cygwin/X; KDrive; Low Bandwidth X ;MacX ;Mir (display server); MKS X/Server; Multi-Pointer X; Reflection X; RISCwindows; WeirdX; WiredX; X Window System; X-Win32; X.Org Server; X386; Xapollo; XDarwin; Xephyr; XFree86; Xming; Xmove; Xnest; Xnews (X11 server); Xpra; XQuartzXsgi; Xsun; Xvfb, and the like.
A plurality of seats 12 are provided that can be used by a determined number of people, including but not limited to one, two, and the like. In one embodiment, the arrangement and distance between seats 12 maintains a selected, desired distance, which as a non-limiting example, can be a social distance of 6 feet or less. As a non-limiting example, each seat 12 is positioned and installed in the PCEA 28.
In one embodiment, system 10 includes one or more tracking devices 16, including but not limited to a camera 18 located and monitoring the PCEA.
In one embodiment, a central DCP library database, video storage 20 can be linked in a network 22 to each seat 12. The library database or storage 20 can include a plurality of different videos, movies, concerts, and the like, that are or can be displayed at the theater, and/or available to the theater but not currently shown. The videos can be from the video storage 20, which can be cloud based. The videos can also be transmitted or broadcasted or sent by a satellite 19 to the display screens 14. In one embodiment, each display screen 14 is an emissive screen, compliant with the DCI display rules in terms of visual quality and the like (DCI/CTP compliance) A cinema audio rendering, in first generation using an immersive binaural headphone 20, able from two array speakers 20 to play an immersive sound track at each of a seat 12. As a non-limiting example, the sound is provided from any source from as long the sound and its volume is constrained around the person at the seat 12, and there is little or no disturbance of nearby seat occupants. In one embodiment, surround sound is used and cam be a technique for enriching the fidelity and depth of sound reproduction by using multiple audio channels from speakers that surround the listener (surround channels). In one embodiment, surround sound adds one or more channels from loudspeakers to the side or behind the listener that are able to create the sensation of sound coming from any horizontal direction (at ground level) around the listener.
In one embodiment, surround sound formats vary in reproduction and recording methods, along with the number and positioning of additional channels. In one embodiment, the sound specification is the ITU’s 5.1 standard, calls for 6 speakers: Center (C), in front of the listener; Left (L) and Right (R), at angles of 60°; Left Surround (LS) and Right Surround (RS) at angles of 100-120°; and a subwoofer, whose position is not critical.
In one embodiment, a surround sound has a listener location (sweet spot) where the audio effects work best, and presents a fixed or forward perspective of the sound field to the seat occupant at this location. The technique enhances the perception of sound spatialization by exploiting sound localization: a listener’s ability to identify the location or origin of a detected sound in direction and distance. This is achieved by using multiple discrete audio channels routed to an array of loudspeakers.[
In one embodiment, the videos, including image and audio programs are transmitted from a theater and/or venue, or from an outside source to the play screens. As a non-limiting example, the videos can be encoded and encrypted at a central station, and then distributed to the play screens 14. The program (program material) usually consists of a movie and audio and / or other related information synchronized with it. Such related information may include, for example, a special visual signal channel for the visually impaired, subtitling for a different language and / or hearing-impaired audience, or a multimedia channel. The program can be long (such as feature films) or short (such as clips or so-called previews), or it can be still (such as ads or announcements.
In one embodiment, one or more tracking devices 18, including but not limited to cameras 18 are used in the PCEA 28. As a non-limiting example, a target field (camera’s view) is viewed based on a shortest distance-based association. In one embodiment, people in the PCEA 28 are given an ID, which can be temporarily, and randomly. In this manner, tracking can be done in PCEA 28 to preserve a person’s anonymity.
In one embodiment, system 10 provides data logging. Pixel location coordinates of the detected people within the target field (camera’s view) of the PCEA 28, along with their unique tracking IDs are logged with timestamps in files that are stored locally in on-board memory. The files are preserved until their contents have been successfully transmitted to a server that can be cloud based.
In one embodiment of or more of the following can located at the PCEA 28, at an equipment room of the cinema, a combination thereof, and the like: a content delivery system 100; a plurality of servers each associated with a seat 10, a central storage server 130; a fast network, fast internet lines, 5G, satellite transmission system 120; tape transmission system 110; network interface 150; security system 170; cinema projector; central processing system; auxiliary media signal (eg, an auxiliary soundtrack signal); cinema server 230; antenna 250; auxiliar media device 260; input interface 310; screening processor 320; memory 322; storage device 324; speech output driver 340; caption output driver 345; coprocessors 350; secondary transmitter 390; controller 360; fabrication and distribution system 400: packaging system 420; key generation system 430; auxiliary sound asset 540; auxiliary soundtrack file 560; main soundtrack file 550; auxiliary soundtrack file 560; auxiliary sound track file asset type structure 700; TrackId element 710; and the like.
Referring now to
The central storage server 130 provides the DCP to one or more theaters 160 and to one or more sears 12 via a network using the network interface 150. In one embodiment, network interface 150 is an Ethernet hub.
In order to prevent unauthorized reception of the DCP from the central storage server 130, a security system 170 may be provided. The security key may be generated together with the transmission system 100 or may be generated separately from the transmission system 100. In one embodiment, the security key is provided by the DCP content provider based on valid authorization information about both the content and the theater using the content. In addition, each of these keys may be associated with only one of the theaters 160a, 160b, 160c to prevent content from being transmitted without authorization to any of the remaining theaters.
Theaters may request the DCP, already have it, and may receive the DCP according to a transmission schedule provided by either central storage server 130 or an additional theater content manager (not shown). Theater 160 processes this DCP to provide the audience with media for both voice and video. In addition, the theaters 160 may transmit any supplemental content provided to the audience by the DCP.
Referring now to
The DCP signal is provided to the cinema server 210 located in the equipment room of the theater 200 through a network interface. The cinema server 210 provides the signal processing necessary to separate the various elements of the DCP stream into appropriate video, audio, and caption signals for screening. In addition, the cinema server 210 may provide any video signal formatting that is required, such as converting the video signal to the correct format and aspect ratio so that it can be shown in the screening room of the theater 200. In addition, the cinema server 210 may process and convert voice signals to separate and further generate multiple voice channels required for the adopted voice playback system.
The cinema server 210 also separates and manages any auxiliary media provided over the DCP stream. The cinema server 210 sets any transmission timing of the auxiliary media content by decoding the synchronization information provided in the DCP.
The image content signal output from the cinema server 210 is provided to the cinema projector 220. The cinema projector 220 receives the image content signal and generates a light emitting image output to be displayed on the cinema screen 230 located in the screening room of the theater 200. In one embodiment, the cinema projector 220 receives an image content signal in the form of a digital data stream representing luminance levels of three colors, i.e., red, green and blue. Image information associated with each of these colors is provided separately by a digital light projection (DLP) circuit using a high intensity polarization source, in which two rooms of the theater 200 generate and project an image through an opening in an adjacent wall.
A projection light source representing the cinema screened image is projected onto the other end of the screening room of the theater 200 and displayed on the cinema screen 230.
Descriptive caption content signals from the cinema server 210 may also be provided to the cinema projector 220. The cinema projector 220 receives the caption wall. content signal, combines the caption wall. content signal with the video content signal, generates a light emitting video output, and displays it on the cinema screen 230 located in the screening room of the theater 200. To be.
The audio content signal from the cinema server 210 is provided to the speakers 20240a-240f located in the screening room of the theater 200. Speakers 240a-240f may include additional signal processing, such as speech equalization and / or amplification. Alternatively, the voice content signal may use a central processing system (not shown) for voice compensation and amplification. The central processing system may provide the compensated and amplified signals to the speakers 20240a-240f. The number and location of speakers 20 used in the showroom will vary depending on the requirements and design. In one embodiment, six speakers 20240a-240f are placed on each side wall of the theater 200 screening room. These speakers 20240a-240f are located at equal intervals along the side and are disposed perpendicular to the cinema screen 230.
An auxiliary media signal (eg, an auxiliary soundtrack signal) from the cinema server 210 is provided to the antenna 250. Cinema server 230 may include any signal processing including signal amplification to provide an auxiliary media signal in a condition suitable for transmission by antenna 250. Alternatively, individual amplifiers (not shown) may process and amplify the auxiliary media signal prior to transmission. Such a transmission method may involve a protocol associated with a wireless network system such as Wi-Fi. Such a transmission method may also involve the use of mobile telephone network communications. Such a transmission method may also involve suitable measures using analog or digital communication techniques such as frequency modulation (FM) or quadrature phase shift keying (QPSK).
The auxiliary media signal may be transmitted from the antenna 250 and received by the auxiliary media device 260. The auxiliary media device 260 receives the auxiliary media signal, decodes the auxiliary media signal, and provides the auxiliary media signal to the audience through the electronic media device. The secondary media device 260 may be implemented as a wireless network or Wi-Fi terminal, headphones 20, mobile phone, pager or any suitable communication device.
Other transmission systems for providing auxiliary media signals (eg, auxiliary soundtrack signals) may be used. For example, the auxiliary media signal may be to seat speakers 20
The secondary media device 260 can include a display and some type of audio driver, such as a speaker or headphone connection. The auxiliary media device 260 may further include a user control device for allowing the viewer to control the operation.
The cinema server 210 may further include receiver circuitry and may include processing to determine and maintain a roster of auxiliary media devices 260 being used in the theater 200. In addition, the cinema server 210 may transmit the auxiliary audio track only to customers who want to receive the auxiliary audio track through the identifier signal for the auxiliary media device.
Referring now to
The transformed data stream from the input interface 310 is provided to the screening processor 320. The screening processor 320 separates the converted data stream into separate sets of screening content such as video, audio, captions, and auxiliary media content. Screening processor 320 also separates and decodes any code instructions provided as part of the DCP. Screening processor 320 acts on the input translation data stream following the code instructions provided within the DCP. The screening processor 320 may operate using instructions included therein. In addition, the screening processor 320 may separate and decode any security information and perform functions such as key authorization for effective reception of the DCP. Screening processor 320 may also perform initial signal processing for the individual screened content.
In addition, the screening processor 320 processes content synchronization information for screening. This synchronization information may be provided with or as part of an instruction provided to the DCP. Subsequently, synchronization of the content based on the instructions in the DCP structure and the instructions in the screening processor 320 proceeds. In addition, the time-based information required to perform this synchronization may be given within an instruction provided to the DCP, or alternatively, may be generated by the screening processor 320.
The memory 322 may be connected to the screening processor 320. The memory 322 may store not only a portion of the show signal but also a portion of the input transform data stream to facilitate content synchronization. The memory 322 may also be used to store control information and operation codes for the screening processor 320 as well as intermediate calculations for any processing. In one embodiment, memory 322 is in the form of RAM and is used to meet memory requirements. In another embodiment, the memory 322 includes RAM for controlling the operation of the screening processor 320 as well as storing data streams and portions of the screening signals. The ROM is used to store initialization and control software for the screening processor 320.
Memory 322 may also store important security information such as keys or algorithms. Some of the security information may be stored in either RAM or ROM. As is well known to those skilled in the art, it should be appreciated that some other methods of storing and retrieving security information may also be used.
Storage device 324 may also be connected to screening processor 320. Storage device 324 has a larger storage capacity than memory 322 and can store for longer periods of time. Storage device 324 can be used to store more portions of the input transform data stream. Alternatively, the storage device 324 can store the entire DCP, allowing the cinema server 300 to download the DCP completely prior to DCP processing using the screening processor 320. In one embodiment, the storage device 324 is a hard disk drive.
The screening processor 320 outputs some screening signals including video, audio, and caption screening signals necessary for screening.
An image display output signal from the screening processor 320 is provided to the image output driver 330. In one embodiment, the image showing output signal is a digital image signal and the image output driver 330 provides the image showing output signal to the cinema projector 220 for projection onto the cinema screen 230.
A speech output signal from the screen processor 320 is provided to the speech output driver 340. The voice output driver 340 provides a voice screening signal to the speakers (20) 240a-240f.
The caption 8-bit output signal from the screening processor 320 is provided to the caption 8-bit output driver 345. The caption output driver 345 provides the cinematic subtitle output signal to the cinema projector 220 for projection onto the cinema screen 230.
An auxiliary media output signal (eg, an auxiliary soundtrack signal) from the screening processor 320 is provided to the auxiliary processor 350. Coprocessor 350 performs any further processing on the auxiliary media output signal, if necessary. The coprocessor 350 manages an auxiliary sound media output signal and also manages any additional auxiliary data.
Although screening processor 320 and coprocessor 350 are illustrated as separate processors, it should be appreciated that these processors may be combined into one processor, as is known to those skilled in the art.
The auxiliary media signal is output from the auxiliary processor 350 to the auxiliary transmitter 390. The secondary transmitter 390 can format the secondary media signal into a suitable transmission signal, such as a QPSK signal. In addition, the auxiliary transmitter 390 may process the transmitted signal to add elements such as error correction required for a particular transmission standard or well known to those skilled in the art. As mentioned above, the auxiliary media signal may be transmitted in a wired manner, such as through a wired network to a speaker in a soundproof room or to a speaker disposed in a theater seat. When the auxiliary media signal is transmitted in a wired manner, the auxiliary transmitter 390 may be replaced by an auxiliary driver as known to those skilled in the art.
The memory 352 may be connected to the coprocessor 350. The memory 352 may primarily store some or any additional auxiliary data of the auxiliary media content to facilitate content synchronization. The memory 352 may also be used to store control information and operation codes for the coprocessor 350 as well as intermediate calculations for any processing. In one embodiment, memory 352 is in the form of RAM and is used to meet memory requirements. In another embodiment, memory 352 includes RAM for controlling the operation of coprocessor 350 as well as storing portions of auxiliary media content. The ROM is used to store initialization and control software for the coprocessor 350.
Storage device 354 is also connected to coprocessor 350. The storage device 354 has a larger storage capacity than the memory 352 and can store for a longer time. Storage device 354 may be used to store more portion of auxiliary media content. Alternatively, the storage device 354 may store additional auxiliary media content provided to or generated by the cinema server. The storage device 354 allows the cinema server 300 to receive additional auxiliary media content intact during the time prior to transmitting the content to the auxiliary audio track in connection with the showing. In one embodiment, the storage device 354 is a hard disk drive.
Controller 360 is connected to both screening processor 320 and coprocessor 350. The controller 360 can manage the interaction between these two processors as well as execute or process instructions passed with the DCP. Controller 360 may maintain an identifier for a device capable of transmitting and / or receiving auxiliary media. Also, the controller 360 can process the return data.
The user interface 370 is connected to the controller 360, and allows control information between the person who controls or controls the screening and the cinema server 300 to interact. User interface 370 allows the control display monitor, touch screen system, mouse and / or keyboard to be externally connected.
Referring now to
Digital editing of the film is performed in the studio or the editing room 410. More specifically, the film is scanned in digital format from the camera-film disc via a scanner or high-resolution telecine. Alternatively, data from a digital movie camera can be converted into an image file format that is convenient for processing. All of these files are matched to the edit list created by the film editor and then color corrected under the guidance of the studio staff. The final result of the edit is DI (digital intermediate). DI can be used to record movies on film or as the basis for digital film releases. When all of the audio for production (eg, the main soundtrack and all the subsidiary soundtracks), video and data elements are completed, they can be gathered into a Digital Cinema Distribution Master (DCDM) that includes all of the digital material needed for the show. The mastering step for generating the DCDM may be done in the studio or the editing room, or may be done outside the studio or the editing room.
DCDM is sent to packaging system 420. The packaging system 420 compresses, encrypts, and packages the video, audio, and caption subtitles included in the DCDM according to embodiments of the present invention to form a digital cinema package (DCP). This DCP includes an essence to be provided, including a compressed and encrypted track file containing audio, video and descriptive caption data, and, in particular, an organization list (CPL) indicating how this track file will be played.
The DCP is transmitted from the packaging system 420 to the central storage server 130 in different ways, which may include a hard drive, DVD or satellite, as described above. The packaging system 420 may also interact with the key generation network 430 such that the appropriate encryption key is passed to the digital cinema theater (ie, security system 170 associated with the digital cinema theater).
Referring now to
The auxiliary sound asset 540 is linked to an auxiliary soundtrack file 560 that includes sound essences that are not previously included in the main soundtrack file 550, according to one embodiment of the invention. Although only one auxiliary sound asset 540 and an auxiliary soundtrack file 560 are shown, a plurality of auxiliary sound assets and soundtrack files may be provided. Examples of auxiliary sound essences include, but are not limited to, foreign soundtracks and narration sounds for digital cinema screenings. As mentioned in the description of
Note that the auxiliary sound has the same operating constraints as the main sound. This enables the reuse of soundtrack files 550 and 560 in the CPL as either main or auxiliary sound, as described in detail below. It should also be noted that the auxiliary sound preferably has the same audio characteristics as the main sound. More specifically, the bit depth is 24 bits per sample, the sample rate is 48.000 kHz or 96.000 kHz to match the sample rate of the main sound to the combination, and the channel count is ≤ 16 full-bandwidth channels. channel), and the reference level reaches -20 dBFS.
The total channel count between the main and auxiliary soundtracks 550, 560 in the CPL 500 is preferably limited to 16 channels. This allows the cinema server 210 (or more precisely the media block (not shown) in the cinema server 210) to process the CPL as both main and secondary sound.
Auxiliary soundtrack file 560 utilizes an additional decryption context. The number of parallel decryption contexts for digital cinema screening may be limited. Thus, the number of auxiliary soundtracks 560 associated with the auxiliary sound assets 540 in the CPL 500 may also be limited.
The reproduction of the auxiliary soundtrack file 560 is preferably synchronized with the reproduction of the main picture track file 545 and the main soundtrack file 550. Sample accuracy is not required, but at least frame accuracy is desired (i.e., sync error will be between +/- 1 frame).
Although the main soundtrack file 550 in the CPL 500 can be modified to include an auxiliary soundtrack, such as an additional language soundtrack, one advantage of using the auxiliary sound structure of an embodiment of the present invention is the multiple CPL 500. Is the flexibility to reuse existing soundtrack files 550 and 560 for. For example, consider a case in which the same digital film is screened in an audience mainly speaking Spanish in the first theater 160a and mainly in an English-speaking audience in the second theater 160b.
When using the auxiliary sound structure of the embodiment of the present invention, the same Spanish and English soundtrack files 550 and 560 have two different CPLs, namely a first CPL (using Spanish as the main sound and English as the auxiliary sound) And the second CPL using English as the main sound and Spanish as the auxiliary sound (as shown in
The auxiliary sound structure of an embodiment of the present invention defines additional sound essences that can be played in parallel with the main soundtrack file and other media assets on the reels. In particular, the Auxiliary Sound element (
Referring now to
Referring now to
The auxiliary sound track file asset type structure 700 is defined using an XML schema, as described below. TrackId element 710 uniquely identifies the secondary soundtrack to which the secondary soundtrack file belongs. The trackId element 710 requires discrimination between different auxiliary soundtracks in reels (eg, reels containing foreign soundtracks and narration soundtracks) that contain a plurality of auxiliary soundtrack files. Annotation Text element 720 is a free form human-readable annotation associated with the auxiliary soundtrack file. The comment element 720 represents the form of at least one of the subsidiary soundtrack files for each subsidiary soundtrack, preferably the first subsidiary soundtrack file. Annotation element 720 illustrates the purpose and use of an auxiliary soundtrack (eg, “second Spanish soundtrack”).
One possible way of integrating auxiliary media content with main screening content is based on XML (extensible Markup Language) standardized plain text computer code. XML is a standardized language used to publish content on the Internet, but it is also used to define data in other areas. In the example of digital cinema, XML is a common language that represents content, content playback methods, captions, and associated metadata.
Referring now to
According to an embodiment of the present invention, in addition to the main asset (eg, main video, audio and caption subtitle assets) linked to the main track file (e.g., main video, audio and caption track files), the CPL is associated with the main asset. Also included are auxiliary assets (eg, auxiliary sound assets) linked to auxiliary track files (eg, auxiliary soundtracks) to be processed and provided in parallel with the main track file. Next, in step 830, the DCP stores a central storage server (such as the central storage server 130 shown in
It is to be understood that the present disclosure is not to be limited to the specific examples illustrated and that modifications and other examples are intended to be included within the scope of the appended claims. Moreover, although the foregoing description and the associated drawings describe examples of the present disclosure in the context of certain illustrative combinations of elements and/or functions, it should be appreciated that different combinations of elements and/or functions may be provided by alternative implementations without departing from the scope of the appended claims. Accordingly, parenthetical reference numerals in the appended claims are presented for illustrative purposes only and are not intended to limit the scope of the claimed subject matter to the specific examples provided in the present disclosure.
