TW515205B - Apparatus and method for decoding digital image and audio signals - Google Patents

Abstract

An apparatus and method for decoding of encoded signals representing at least image information from a storage medium is claimed. A storage device is configured to receive the storage medium. A decoder is configured to receive the compressed encrypted encoded signals from the storage medium, and send the signals to a decryptor. The decryptor is configured to decrypt the compressed encrypted encoded signals, and send the signals to a decompressor. The decompressor is configured to receive the compressed encoded signals from the decryptor and to decompress the compressed encoded signals to enable display of the image.

Description

515205 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7_____ V. Description of the Invention (i) Background of the Invention I. Scope of the Invention The present invention relates to digital and audiovisual coding. More specifically, the present invention relates to a device and method for decoding digital images and information in digital cinema systems. The present invention further relates to the encoding, compression, storage, encryption, decompression, decryption, and controlled playback of electronic video programs from a central device to a multi-display projector or display system. II. Relevant Skills Description For decades, the animation industry has relied on copying, distributing, and showing cellulosic films to deliver innovative stylized materials to cinemas across the country and around the world. For the most part, the methods and institutions used to distribute film materials remain essentially the same. The steps for copying and distributing the film are shown in Figure 1. Film reproduction usually begins with a super-quality photo camera negative. At the film studio 50, a film editor 52 makes a master filln cpy after the steps of making the original film. From this master film copy, a film reproduction element 54 makes a so-called distribution negative, from which a large number of distribution versions are known (known as "positive films"). Depending on the size of the release or the number of copies of the distribution film, there may be more intermediate steps or multiple copy productions at each stage. The feature film of the film was distributed to different movie theaters by errands and other physical installations, with movie theater 56 as a demonstration. At the cinema% ', the movie is displayed with a movie projector 58 displaying a movie image on a display surface. In this traditional system, the 'multi-track voice program' is usually generated by a voice editing system 51, and printed with the animated image at the same time as the film paper size (CNS) A4 size (G x 297 mm) --- ------------- ^ — Order --------- line in · (Please read the precautions on the back before filling out this page) 515205 Employees of Intellectual Property Bureau of the Ministry of Economic Affairs Consumption Cooperative prints A7 ---------- B7______ 5. Description of the invention (2) On the film, this sodtrack can be played by the cinema sound system W, synchronized with the animation time of the cinema projection system. Although the distribution steps shown in Figure 1 work well, there are inherent limitations. Due to the use of celluloid materials and the bandwidth limitation of the film media, there is a limitation in the ability to provide highly transmissive multi-frequency audio programs. Then, the high expense of making a large number of copies of a movie can cost hundreds of dollars per feature film. There are also the costs, complexity, and delays associated with actually distributing large cans of celluloid movies to large and growing cinema locations. Also, in the growing cinema industry, <trend is the so-called multiplex movie theater location development, which is a multi-play movie theater located or gathered at a movie theater location. Each of the auditoriums in the cinema can show one film, while the other auditoriums show other animations at the same time. Due to the mass production of duplicates, prevention of illegal duplication and theft becomes increasingly difficult. Due to copyright infringement and plagiarism, the animation industry is estimated to lose billions of dollars a year. Furthermore, due to the long-term accumulation of dust, energy consumption, thermal variations, and other known factors, the copied copy Yangbei will be degraded. Finally, there are management costs and other costs associated with the eventual destruction of film material, which may include regulatory hazardous materials. Novelty and emerging technologies make these distribution issues possible today. For example, satellite transmission methods are now available, although the distribution of high-quality audiovisual (AV) materials by these methods is not yet commercially viable. Because the distribution of video programs is essentially a special broadcast mode for the mainland region, the method of satellite distribution is based on the advantages of wide-area broadcasting. ^ IT? Iiii7CNS) A4 Specifications ------- ~ __- ---- ^ --- Order --------- (Please read the note on the back? Matters and then ^ 1 write this page) 0 -l · · A7 V. Description of the invention (3) , It seems extremely suitable for distribution as a video. However, in order to transmit high-quality AV signals "on the fly", the required data rate (bits per second) is about 1.5 billion bits per second. Even with simple transmission methods, such a high data rate requires the capacity of an entire satellite, which is prohibitive. In addition, other distribution technologies have not yet provided image quality and projection brightness such as the use of celluloid films. Competitive technology usually involves recording audiovisual (AV) signals on different magnetic or optical media for projection on video monitors, televisions, or projection equipment. These technologies have no video quality because of bandwidth limitations. In addition to the ability to transmit the necessary information via satellite, the received information must be displayed using a high-quality projector, which had not matured before. Also, the implementation of satellite-based transmitter and receiver systems is very expensive, and it is an overly drastic change from the current method of film distribution and projection. Initially, such drastic changes were not accepted commercially. At the same time, the advanced advancement of digital technology has reached a revolutionary concept of distribution, which stores stylized materials electronically in a digital format rather than on an optical film medium. The digitized images can be distributed on different magnetic media or small optical discs, or transmitted via wired, fiber optic, wireless or satellite communication systems. Various different DVD-ROM storage formats exist 'which have storage capacities ranging from 4.5 gigabytes (GB) to about 18 GB. These DVD-ROM storage formats, which have a storage capacity of more than 9 GB, are placed on double-sided discs. As such, high-capacity DVD · ROM discs must be turned over manually to access the information stored on the second side of the disc. -6- This paper has passed the Chinese National Standard (CNS) A4 specification (21G X 297 mm) '-(Please read the note on the back? Matters before filling this page) Order --------- Line 0 Printed by the Intellectual Property Bureau Employees Cooperative of the Ministry of Economic Affairs 515205 A7 B7 V. Description of Invention (4) (Please read the notes on the back before filling this page) Movies with an average of two hours (which has an average of about 40 Mbps for For video track and about 8 Mbps image compression bit rate for voice and control information), about 45 GB of storage space is required. Therefore, even if a two-hour movie with a DVD_ROM disc of two storage capacities is used, several DVD-ROM discs are required to have sufficient capacity. Furthermore, during playback, an average of two hours of DVD-ROM movie demand information is output at a rate of 6 million bytes per second, or approximately 48 Mbps. Although some DVD-ROM devices now advertise a transfer rate of 8 MB / sec, its quality and reliability are still unknown. Therefore, there is no guarantee that the DVD-ROM device can reliably maintain a transfer rate of 6 MB / sec. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs In order to reduce the data rate requirement for storing high-quality electronic images, some compression algorithms are being developed. Digital dynamic image compression technology that can provide great compression while maintaining the quality of the image signal, using the adaptive size and sub-blocks of the encoded discrete cosine transform (DCT) coefficient data. This technique will be referred to below as the adaptive block size discrete cosine transform (ABSDCT) method. This adaptive block size is selected to take advantage of the redundancy of the information in an image data frame. This technology is disclosed in U.S. Patent No. 5,201,891, entitled "Adaptive Block Size Image Compression Method And System", assigned to the assignee of the present invention, and incorporated herein by reference. The DCT technology is also disclosed in U.S. Patent No. 5,107,345, entitled Γ Adaptive Block Size Image Compression Method And System, which is assigned to the assignee of the present invention and is hereby incorporated herein by reference. . The ABSDCT technology is also used to merge discrete quadtree transformations (Discrete Quadtree) This paper size applies the Chinese National Standard (CNS) A4 specification (210 χ 297 mm) 515205 A7 B7__ 5. Description of the invention (5) (Fill in this page again)

Transform) technology, which is discussed in U.S. Patent No. 5,452,104, entitled "Adaptive Block Size Image Compression Method And System", is also assigned to the assignee of the present invention and is incorporated herein by reference. In the systems disclosed by these in-frame coding patents, each frame of an image sequence is encoded regardless of the content of any other frame. The distribution of film information in a digital electronic format actually increases the potential for rapid, low-cost reproduction without compromising quality. However, digital technology is related to “easy copying”, so there are encryption techniques to ensure that information is encoded so that useful information is not distributed to unauthorized persons. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, technologies such as ABSDCT compression technology, advanced projection equipment, and electronic encryption methods provide the possibility of a "digital cinema" system. Digital cinema is generally defined as the display of electronic distribution and high-quality movie programs, which has been converted into a digital electronic representative for storage, transmission, and display purposes. A digital cinema system may overcome many of the limitations of current film distribution methods. A digital cinema system may not be subject to degradation in the quality of celluloid films over time. Furthermore, a digital film virtually eliminates the plagiarism and illegal copying of celluloid films, and further provides the possibility of security measures in the digital system itself. However, the complete digital cinema system has not been developed by the animation industry or related technologies. Several issues and issues remain to be resolved. New digital cinema system needs improved protection to prevent plagiarism in cinemas. The movie theaters with multiple screening halls have become larger and larger, and strive to obtain a higher economic recovery. As a result, the paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm). Printed by Consumer Cooperatives A7 B7 V. Invention Description (6) A more complex presentation of the program schedule and a larger number of locations to show a given movie. This may require the use of today's technology to transfer many electronic copies to a movie theater for its complexity and operating costs. The distribution channels and institutions are still defined by the older celluloid film copy and distribution technologies discussed above. New technologies are needed to fully take advantage of the proposed digital cinema steps to reduce copying, provide a faster premiere to the market, and update premiered productions, while providing program scheduling and distribution flexibility at a reasonable cost. At the same time, some film producers, studios, and movie theater administrators need to have more centralized control over premieres and distribution, and be able to expand to newer markets. For example, it can provide videos and other voice-visual presentations in a more cost-effective manner, with other optional recordings bringing audiences who respond to multilingual markets or selectable languages. What is needed is to integrate a certain technology into a device and method for encoding, encrypting, storing, and operating digital video and speech programs. These objectives can be achieved using the present invention in the manner described below. SUMMARY OF THE INVENTION The present invention discloses a device and method for processing encoded signals representing compressed and encrypted images on a storage medium and transported in order to display the images. The device includes a storage device for receiving the storage medium. And a decoder for receiving a compressed encrypted coded signal from the storage medium. The encoder further includes a decryptor for decrypting the compressed and encrypted encoded signals; and a decompressor for receiving the compressed and encrypted encoded signals from the decryptor and decompressing the compressed and encoded signals In order to be able to display the image, the decompressor uses a paper size that applies the Chinese National Standard (CNS) A4 specification (21〇X 297 mm) (Please read the precautions on the back before filling this page) Order --- ------ line «515205 V. Description of the invention (7) (Please read the notes on the back before filling this page) Inverse adaptive block size discrete cosine transform compression technology. The method of the present invention is a method for processing encoded signals representing compressed and encrypted forms of images on a storage medium and transported in order to be able to display the images. The method includes the following steps: obtaining from the storage medium the compressed image Encryption code = signal, decryption of the encrypted encoding signal to generate a compression-encoded signal; and decompression of the compression-encoded signal to be able to display the image, the decompression action uses an &amp;; Size discrete cosine transform compression technology. • Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs According to this, the device and method of the present invention are used to decode, decrypt and decompress image and / or voice information (usually in the form of stylized materials). In a central location or a centralized station, the stylized material is digitally compressed, encrypted, and stored, and the material can be distributed to one or more screening rooms or movie theater locations at any time for display on large screen programs. The stylized material usually contains animated images, time-synchronized speech programming, and / or other relevant information, such as visual cue tracks for visually impaired viewers, subtitles, advertisements, or It's the track of multimedia time. The stylized material may have a very long duration (for example, an animated feature film), a short duration (for example, an animated trailer or commercial), or a still image (for example, used for advertising or notice). The voice and other related programs do not need to be synchronized or stored with the time of the image information, such as background voice programming and advertising. Process the program information to be distributed on the central station. A source generator located at the central station or at another address can be used to generate electronic voice and video signals from analog or digital inputs. The source generator can contain a -10- 515205

Telecine of electronic video signals, and a voice reader for generating voice signals. Alternatively, the electronic signal may be provided directly from an electronic camera or other electronic source such as a computer-type image generating system. The electronic image and voice signals are then processed by a compressor / encryptor. Once again, the compressor / encryptor may be located at a central station or the same site as the source generator, such as a production studio. Image and voice information can be stored on storage media using well-known dynamic compression techniques. Compression techniques such as the ABSDCT method described in patents 5,452, 104, 5, 107,345, and 5,021,891 can be used. The storage medium may be any type of high-response electronic tape, magnetic, or optical storage device, such as a cd, DVD, or hard drive, or a storage device attached to the network. In addition, some information can be transmitted through wired, fiber-optic wireless or satellite communication systems. The above method or standard digital speech compression algorithm can be used to compress the speech signal and store it on a similar device. Encryption involves the use of time-varying electronic keys and / or digital control word sequences to provide to authorized receivers or projectors. In addition, a digital signature or "watermark" can be added to the image and / or voice signal. Watermarks are not perceptible to normal viewers, but they can be used to identify the source of unauthorized copying programs when playing analysis in non-real-time or still frames. A separate decryptor unit will use the secret hall specific key and security information sent to the cinema to generate the decryption information needed to decrypt the image and / or voice information. In general, video and audio signals are separately encrypted. By using the image toilet to set up, π 〃 ... ρ Shao Fen is treated as a separate program, so that different voice programs can be used with the video program for unreasonable reasons. (CNS) A4 secret

(Please read the note on the back? Matters before filling out this page) 1 ♦ Order J --------- Line «Printed by the Consumer Consumption Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 515205 V. Description of Invention (9) Merger, Such as different languages. Compression is provided as well as encrypted signals. If it is stored on a storage medium, or from the central station to the error correction department, = 10,000, then the modulation / transmission technology can add. ^ ′ And wither the data stream to facilitate transmission. Anyone who has 飧 or wired communication type comes with four hundred, ’s 〃 〃 米 米 m 仃 仃 transmission, such as ground communication, optical, satellite, Internet or other methods. Central accounting includes _ network administrator. The network administrator can include a control processor for answering W 4, D .., total gymnastics and cinema subsystem 4 storage_, playback / display, security, and overall monitoring / control and network Management functions. The network administrator can operate with centralized or decentralized fully automatic control, semi-automatic control, or manual intervention. Store and forward stylized materials and additional control information to the cinema subsystem under the control of a network administrator. The network administrator also includes control methods used to notify the identity of the program transmitted by the cinema subsystem. In addition, a control method of a selective storage device for controlling the reception mode of each cinema subsystem is provided. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs The storage device of the cinema subsystem receives the storage media from the centralized station. The playback module reads the information from the storage medium, monitors the stored information for errors, and requests to resend any information sections that contain errors. Cinema subsystems, such as cinema administrators, use communication paths (from the cinema system to the central station) to request retransmissions. This communication path can use telephone networks, satellite channels, the Internet, or any other type of communication method. Under the control of the movie theater administrator, the storage system of the movie theater subsystem-12- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 515205 A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Description of the invention (10) It can be used as a local central storage device for stylized materials. The storage device may include a storage medium such as a DVD disc, a removable hard disk drive, or a Just a Bunch of Drives (rBOD) module. The storage device can store several programs at a time. The storage device can be connected via a local area network (LAN) (electronic or optical), allowing any program to be played and displayed on any authorized projector. Moreover, the same program can be played simultaneously on two or more projectors. The stylized material is delivered from the storage device via a local area network (which can use various local area network architectures) to a designated theater. For the purpose of this manual, this manual assumes the use of a local area network that is integrated into a central network switching architecture. However, this subsystem may also use other types of LAN architecture. After the programming module has sequenced the stylized material, the decoder decompresses and decrypts or decrypts the stylized material. The decompression and decryption algorithm depends on the compression and encryption technology used by the central station. The decompression / decryption information is displayed during the listening using a projector, and the voice signal is presented using an electronic sound subsystem. Cinema administrators usually control all projection operations, including storing the received stylized, decompressed and decrypted stylized signals, and displaying stylized material. The cinema administrator can also control the time and number of times each program can be played. Alternatively, the control of the presentation step can be under the control of the projector, the remote control unit, or the central station or other centralized elements. In addition, the movie theater administrator can be used to integrate projection operations with other movie theater operations, such as food sales, ticket sales, promotions, signboards, environmental controls, lighting, sound system operations, and more. At the same time, each movie theater (please read the notes on the back before filling out this page) 1. • Line_ 13- 515205 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 V. Invention Description (11) This system can include public common Stored multi-playback auditorium modules and control functions are used as flexible and cost-effective presentation options. Use digital encryption to provide a built-in security measure. Encryption technology is used to provide end-to-end encrypted data transfer. That is, during playback, the image and / or voice information is encrypted at the source generator and decrypted in the cinema subsystem. In addition to electronic security measures, tangible security measures can provide additional protection for stylized materials. Tangible security measures may be particularly important to protect the decompressed / decrypted signals from being intercepted by "eavesdroppers" before being displayed by the projector in the cinema subsystem. In a specific embodiment, the encryption / decompression function is located in a secure, self-sufficient motherboard, which is physically attached to the projector or embedded in it, which is usually not removable without unauthorized access. And actually prevents detection of the decrypted signal. In addition, if you break into the security environment or motherboard, you may initiate steps to delete or erase the password key information. Otherwise, delete or change any available digital data at the screening point to prevent copying. . In this way, a device and method for decoding, decompressing and decrypting digital and voice information, and management functions for monitoring and controlling such devices are provided. BRIEF DESCRIPTION OF THE DRAWINGS The function, purpose, and advantages of the present invention will be clearer from the following detailed description and reference to the schematic description. In the drawings, the same reference signs are consistent throughout the text, wherein: FIG. 1 is a block diagram of a traditional film distribution system; FIG. 2 is a high-level block of a specific embodiment of a digital cinema device of the present invention. China National Standard (CNS) A4 specification ⑵Q χ tear public shame) (Please read the precautions on the back before filling this page) -------- Order --------- 515205 A7 B7 V. Description of the invention (l2) Figure; Figure 3 is a block diagram of a film-based source generator; Figure 4 is a block diagram of a compressor / encryptor; Figure 5 is a block diagram of a network administrator; A block diagram of a hub internal network and central station redundancy; Figure 7A-E is a block diagram of a storage device; Figure 8 is a storage module using a tandem multi-disc player and a reproduction player Block diagram; Figure 9 is a block diagram of a storage device using a parallel multi-disc player and a playback player; Figure 10 is a block diagram of a storage device using a disc playback and playback player; Figure 11 is- The block diagram of the electric sub-system makes the swappable hard disk drive a storage device; Figure 1 2 is a block diagram of a movie theater administrator; and FIG. Π is a block diagram of a movie theater subsystem using D module as a storage device. Printed by the Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the detailed description of the present invention includes a video program, such as a movie system, a movie theater, a movie theater, a city, and / or an animation in a display system, which is used for electronic decoding and decompression. I decrypt The device and method are sometimes referred to herein as "digital sonar" & digital cinemas incorporating video and voice compression and projection: the second theory and many other innovations. Digital cinema design to replace = front 'paper size applies Chinese National Standard (CNS) A4 specifications (210 X 297 mm "(Please read the precautions on the back before filling out this page) Line · • 15 · 515205 A7 B7 V. Description of the Invention (13) (Please read the notes on the back before filling out this page) Celluloid film is physically distributed to each playing or screening location, such as a movie theater or a remote theater. Digital cinema eliminates celluloid films The need for reproduction and the potential to provide super audio-visual quality and built-in security measures. Programs can be transferred to movie theaters and stored on storage devices such as removable hard disk drives (RHD) or digital versatile discs (DVD) However, the present invention can also be applied to the presentation of video and audio information to various presentation occasions, such as outdoor theaters, movie theaters, car auditoriums, schools, special restaurants, etc. For this reason, in the following examples of movie theaters or movie cities, it will be clear to those skilled in the art how to apply the present invention to Different occasions. A digital cinema device 100 of the present invention is shown in Figure 2. The digital cinema device 100 includes two main systems: at least one central facility or central station 102 and at least one presentation or cinema subsystem 104. The central station 102 and the cinema subsystem 104 are similar in design to the pending US patent application serial number 09 / 075,152 filed on May 8, 1998. This patent application has the same assignor as the present invention. , Which is incorporated herein by reference. Printed by a consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs in a specific embodiment, the image and voice information are compressed and stored on a storage medium and distributed from Central Station 102 To the movie theater subsystem 104. Generally, every movie theater or movie venue on the network that receives video and audio information, and includes centralized equipment, and some kind of equipment used in each movie theater, uses the movie theater Subsystem 104. In Central Station 102, a source generator 108 receives the film material and applies 16- Standard (CNS) A4 (210 X 297 mm) 515205 Printed by A7 _ B7 of the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 14 V. Description of the invention () This video produces a digital version. The digital information is compressed / encrypted (CE) 112 is compressed and encrypted, and is stored on a storage medium by a central station storage device 116. A network administrator 120 monitors and transmits control information to the source generator 108, CE 112, and central station storage device 116. A conditional access manager 124 provides specific electronic key entry information so that only specific theaters are authorized to show specific programs. In the theater subsystem 104, a theater manager 128 controls the theater manager 132. Based on the control information received from the movie theater manager 132, the movie theater storage device 136 transfers the compressed information stored on the storage medium to the playback module 140. The playback module 140 receives the compressed information from the movie theater storage device 136, and prepares the compressed information into a predetermined sequence, size, and data rate. The playback module 140 outputs the compressed information to a decoder 144. The decoder 144 inputs the compressed information from the playback module 140 and decrypts, decompresses, and formats it, and outputs the information to a projector 148 and an audio module 152. The projector 148 plays the information on a projector, and the audio module 152 plays the audio information on an audio system, both of which are under the control of the cinema manager 132. In operation, the source generator 108 provides digitized electronic images and / or programs to the system. Generally, the source generator 108 receives the film material and generates a magnetic tape containing digitized information or data. The video is scanned digitally at a fairly high resolution to produce a digitized version of the video or other program. Generally speaking, "television" processing generates image information, and the well-known digital voice conversion processing steps generate the voice portion of the program. The processed image does not have to be provided from the film, but it can be a single day or -17- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before (Fill in this page)

»I I I I I # · A7 V. Description of the invention (15) Still frame type images, or 'series frames or animations with different lengths. These images can be presented as a series or a set of images to produce a so-called image program. In addition, _ In addition, other materials can be provided for the visually impaired viewers. ^ See the track, the subtitles of foreign language and / or hearing impaired viewers, or the multimedia zixi spider time &lt; reminder track, etc. . class

Similarly, the sound effects or recordings can be formed in a single style with a variety of patterns, such as a single oscillator, and a small group, to form the desired voice program. Or, a high-resolution digital camera or other known digital image generating device or method can provide digitalized image information. Using a digital camera, I can directly generate digital image information. The capture of the #live event is particularly useful as a substantial immediate or contemporary distribution. A computer workstation or similar device can also be used to directly produce daytime images to be distributed. The digital image information or program printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs is presented to the compressor / encryptor. 12 It uses a pre-selected known format processing to compress the digital signal and reduce it to reproduce extremely high quality original The amount of digital information required for the image. In a specific embodiment, an ABSDCT technique is used to compress the image source. The ABSDCT compression technique is disclosed in the previously mentioned U.S. Patent Application Serial Nos. 5,021,891, 5,107,345, and 5,452,104. The voice information can also be digitally compressed using standard techniques and can also be synchronized with the time of the compressed video information. The compressed video and audio information is then encrypted and / or scrambled using one or more secure electronic methods. The network administrator 120 monitors the compressor / encryptor 112 and directs the compression information from the compressor / encryptor 112 to the central station storage device 116. The central-18- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 515205 A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (16) The station storage device 116 consists of Or more than one storage medium (shown in Figure 8). The medium (s) can be any type of high-capacity data storage device, such as a digital versatile disc (DVD) or a removable hard disk drive (RHD), and will be further explained here. When the compressed information is stored on a storage medium, the storage medium is actually transported to the movie theater subsystem 104, and particularly to the movie theater storage device 136. In another embodiment, the compressed image and the voice information are stored in a discontinuous or separate manner independently of each other. In other words, a device is provided for compressing and storing audio information related to image information or programs, but it is separated in time. When using the present invention to process such voice images at the same time, there are no necessary conditions. Use predetermined identification items or identified institutions or schemes to appropriately correlate the corresponding voice and video programs with each other. This allows one or more pre-selected voice programs to be linked with at least one pre-selected video program, if required, whether at presentation or during a presentation event. That is, although it is not time synchronized with the compressed image information at the beginning, the compressed speech is linked and synchronized with the program when it is presented. In addition, maintaining the voice program and the video program separately allows the video program and the voice program to be synchronized in multiple languages without having to create another video program for each different language. Furthermore, maintaining a separate video program allows multiple speakers to be supported without having to insert multiple audio cassettes into a single video program. In addition to video programs and voice programs, separate promotional programs, or promo programs, can be added to the system. Generally speaking, promotional materials -19- Please read the note of memorandum first

# Order This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)

The consumer property cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs have printed much more frequently. Using separate promotional programs allows promotional materials to be updated without the need for a new feature film program. The promotional material displays information such as advertisements (slides, voice, motion, or similar) and trailers on Ak. Because storage media such as DVd or RHD can store thousands of slides or commercial clips. The high storage capacity allows you to do 'such as special slides, commercials or trailers that can be shown to different customers in specific cinemas. Although FIG. 2 illustrates the compressed information in the storage device 116 and the actual storage media (s) to the cinema subsystem 104, we should understand that the compressed information, or a part thereof, can use any number of wireless or wired The transmitting device transmits to the cinema storage device 136. Transmission methods include satellite transmission, well-known multi-drop lines, Internet access points, dedicated telephone lines, or point-to-point fiber optic networks. A specific embodiment of the processing block of the central station 102 and the like are exemplified in FIG. 2_9 and described here. The source generator 108 is shown in FIG. 3. In Figure 3, the source generator digitizes a movie image source 156 (such as a 35 cm cartoon) and stores the digitized version on a magnetic tape. The source generator 108 includes a high-definition (HD) "television movie" device or step 164 for receiving a film source 156 and generating a digitized image from the film source 156. The processing of this television movie is well known in the animation industry, and any one of the services or devices of several commercially available devices can be used to perform this step. However, in a preferred embodiment, the high-resolution television movie processing is processed using equipment such as that currently produced by CINTEL or Philips BTS (as is well known in the art). When designing a service, -20 -This paper size is in accordance with the Chinese National Standard (CNS) A4 (210 X 297 mm) I ϋ n 1 amae «ϋ 口: mouth, I n · ϋ 1 n I ii (Please read the note on the back? Matters before (Fill in this page)

515205 A7 B7 V. Description of the invention (18) The resolution and specific selection of the equipment used are determined based on cost and other well-known factors. Other resolutions may be used depending on the target audience, the available projection equipment, and the location, including the expected reduction in data rate for certain satellites. If the original film 156 is a 35 cm source in a standard format, the process is performed on the image at a rate of 24 frames per second using a telecine process. The telecine processes digital output and can be stored using a high data rate tape recorder, or immediately compressed and / or encrypted with a low data rate tape recorder, or other known image storage systems and media for storage. Because telecines only process images, the processing of the voice portion of this input source is separate from the image. If the speech source is an analog format, it is usually provided on the tape 168 to the speech reader 172 for digitization. In a specific embodiment, a maximum of twelve digitized voice channels and digitized images are combined with a multiplexer 176. The multiple signals are stored on the medium together with the image program, such as a high-density digital video recorder 180 or a similar high-capacity digital storage system. Or, as mentioned above, the voice program can be stored and processed separately from the video program, but the time synchronization information needs to be included to allow the timing system to be combined with the video program at the projection system in the auditorium. The time synchronization information can be stored on the video program, voice program or on a separate control program. Although shown as part of the central station 102, I should understand that the source generator 108 may be located in other equipment than the non-central station 102. Other equipment may be equally suitable to generate digital from a tape, magnetic or optical source. -21- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling in this Page). • Printed by the Consumers' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 515205 A7 B7 V. Signal of the invention description (l9). Alternatively, the source generator 108 may consist of a digital camera and a built-in magnetic or optical storage device, or other digital devices for image generation (such as computer-generated screens and special effects), which directly make digital sources material. The source generator 108 may also consist of a digitizing system used as a still image, such as an optical scanner or an image converter for 35 cm photo slides or photos. Therefore, general or special studios, such as special effects, or other equipment involved in the preparation and presentation of an image program, can produce the desired digitized materials, which are then transferred to the central station 102, For further processing or transmission. A block diagram of a compressor / encryptor 112 is shown in FIG. Similar to the source generator 108, the compressor / encryptor system 112 may be part of the central station 102 or located in a separate device. For example, the compressor / encryptor 112 may be located in a film or television production studio together with the source generator log. In addition, the compression processing of image or voice information or data can be performed as a variable rate processing. The compressor / encryptor 112 receives the digits (image and language information) generated by the source generator 108. The digital image and voice information can be stored in a frame buffer (not shown) before further processing. The k-number of the digital image is transmitted to an image compressor 184. In a specific embodiment, the image compressor 184 uses the US patent

The ABSDCT technology described in Nos. 5,021,891, 5, 107,345, and 5,452,104 processes a digital image signal. In this ABSDCT technology, the color input signal is usually a YIq grid-22. This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 male 31) —-(Please read the note on the back? Matters before Fill out this page) Order --------- line; printed by A7 A7 B7 of Consumer Cooperatives of Intellectual Property Bureau of the Ministry of Economy I and Q are chroma or color components respectively. Other formats such as YUV or fine format can also be used. Because the eyes are sensitive to the low spatial sensitivity of the color, the absdct technology uses a factor of two in the flat and vertical directions. Sub-sampling the colors G and q) As it is in the knife, four luminosity components and two chrominance components are used to represent each spatial segment of the image input. Each fraction 1 and chrominance component are passed to a block interleaver. Usually 16x16 blocks are presented to the block interleaver, which is ordered in the block (sampling to make data blocks and combining sub-blocks, doing discrete cosine transform (DCT) analysis (for use. The DCT operator is a conversion A method of time-sampling a signal to represent the frequency of the same signal. By transforming to the frequency representing the heart-type, these DCT techniques have been shown to allow very high-order compression, and can be designed to use the frequency dispersion of an image, like a f Characteristics: In a preferred embodiment, one DCT is applied to a first sequence, four 8x8 DCTs are applied to a second sequence, 1M04 × 4ιχ ^ is applied to a third sequence, and 64 2x2 DCTs are applied A fourth sequence. The DCT operation reduces the inherent spatial redundancy in the image source. After 4 is performed, most of the energy of the image signal tends to be concentrated in several coefficients. For 16x16 blocks and each sub-region For blocks, the conversion coefficient is analyzed to determine the number of bits required to encode a block or sub-block. Then, the block or combination of sub-blocks with the least number of bits required for encoding is selected Represents an image segment. For example, two 8x8 blocks, six 4x4 blocks, and eight 2x2 blocks can be selected to represent the image segment. 23- ^ 297 ^ ¥ 7 This paper scale applies to China National Standard (CNS) A4 Specification (210 515205 A7

(Please read the notes on the back before filling this page) -------- Order --------- line 0 515205

Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the Invention (22) Several known encryption technologies are used to disrupt, cover, or directly encrypt the used secret digit ("key"). If you do not know the secret The key will make it very difficult to recover the original data sequence. Each image or voice program can use specific electronic secret input information, which is presented at the location or with the theater's specific electronic key to provide information, encrypted, and authorized to show the theater or the location of the specific program . The conditional access manager (CAM) 124 handles the function. The encryption program key required by the auditorium to decrypt the stored information is transmitted to or submitted to an authorized cinema before the program is played. Please note that the stored program information may be transmitted a few days or weeks before the start of the authorized show period, and encrypted video or voice programs may not be transmitted or submitted until the start of the show period. The cryptographic program key can also be transferred using a low data rate link, or a transmissive storage element such as a magnetic or optical media disk, a smart card, or other removable memory element. The encryption program key can also be provided by, for example, controlling the movie studio or the theater to authorize the program time. Each of the cinema subsystems 104 receiving the encryption program key decrypts it using a specific secret hall in the auditorium, and stores the decrypted program key in a memory device or other secure memory. When playing privately, it is better to use a symmetric algorithm at the cinema or location-specific and program-specific key entry information, which is used in the decryptor 112 to prepare the encrypted signal to the present. Unscramble / decrypt real-time program information. Referring again to Figure 4, in addition to the disturbance, the image encryptor 192 can be added to -25- This paper size applies the Chinese National Standard (CNS) A4 specification (21G X 297 public love) ----- 1 --- order-- ------- (Please read the precautions on the back before filling this page) 515205 The Intellectual Property Bureau of the Ministry of Economic Affairs printed a description of inventions by the Consumer Cooperatives (23) "Watermark" (its nature is digital) for image programs . This action involves inserting a sequence of site-specific and / or time-specific visual identities. In other words, the watermark is used to indicate where and when to authorize the presentation, if necessary, to be more efficient for tracking illegal copies. The water P can be written in ¥ style {it is now frequently played, but in a pseudo-random manner, it cannot be seen. The watermark is transferred at a normal rate (not perceivable during the presentation of the decompressed image or voice information. However, when the image or voice information is presented at a rate that is extremely different from the normal rate, such as at _ slower "Non-real-time" or still frame playback rate can be detected. If-when an unauthorized copy of the program is found, its digital watermark information can be officially read and the movie theater making the copy It can be decided. In this way, watermarking technology can also be applied or used to identify speech programs. Both the compressed and encrypted images and speech signals are presented to a multi-device 200. At the eve device 200, images and speech The information is multiplexed with time-synchronized information to allow the video and audio stream information to be played back in a time-aligned manner at the cinema subsystem 104. The multiple signals are then processed by a program packetizer 204, which encapsulates the data into packets. Form a program stream. In the form of data packets or "data blocks", the program stream can be located in the cinema subsystem 104 (Figure 2). I was viewed during the decompression process to look for errors in the block received during the decompression process. The movie theater administrator 128 of the cinema subsystem 104 can request to obtain the data block showing the error. So, if there is an error, there is only a small Part of the program must be replaced, not the entire program. Requests for small data blocks can be based on a -26- This paper size applies to China National Standard (CNS) A4 specifications (210 X 297 mm (please read the back first) Please pay attention to this page before filling in this page) Order --------- line «A7 ---------- B7__ V. Description of the invention (24) Spring or ,,,,,, spring link Processing. This provides higher reliability and efficiency. In another preferred embodiment of the present invention, the image and voice parts of a program are treated as separate and distinct programs. Therefore, it is not necessary to use multiple programs. The tool 200 multiplexes the image and the voice signal, but the image signal bluffs the packet. In this specific embodiment, the image program can be transmitted separately without the voice program, and vice versa. In this way, the image And the language is private, there is playing It is sometimes combined into a combination program. This allows a variety of reasons to combine different voice programs with video programs, such as different languages &quot; provide updated versions or program changes after the initial screening, standards suitable for the local community, etc. Etc. This kind of flexible distribution of multi-channel programs with different voices to the private image is very useful for changing the programs that have been distributed, and for the audience of the film industry which is now large and multicultural. Compression I84 and 192, decryptors 188 and 196, multiplexer 200, and program packetizer 204 can use a compression / encryption module (CEM) controller 208 to Execution, which is a software control processor that is programmed to perform the functions described herein. In other words, they can be regarded as generalized hardware, including a variety of programmable electronic devices or computers under software or firmware program control. They can also use some other technology, such as via an ASIC or via one or more circuit card combinations. In other words, the frame constitutes special hardware. The video and bone language program stream are sent to the central station storage device. The CEM controller 208 is mainly responsible for controlling and monitoring the entire compressor / encryptor 112. CEM controller 2008 can be programmed with a general purpose hard • 27- ^ Paper size applies to China National Standard (CNS) A4 (210 X 297 mm) &quot; --- (Please read the note on the back first 咅Please fill in this page for matters} -------- Order --------- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 515205 A7 V. Description of Invention (25) Device or computer ' To perform the required function, or use specialized hardware. The network administrator 120 (Figure 2) provides network control to the CEM controller 208 via a central station internal network in the manner described herein The CEM controller 208 uses a known digital interface with the compressors 84 and 192, the decryptor 188 and 1%, the multiplexer 200, and the program packetizer 204 to traffic and control these components. The CEM controller 208 can also control and monitor the storage module 116 and the data transfer between these devices. The preferred architecture of the storage module 116 is to become one or more RHDs. , DVD disks, or other high-capacity storage media, which are generally associated with the cinema subsystem 104 (Figure 2) The cinema storage device 116 is similar in design. However, for those skilled in the art, it can be seen that other media can be used in certain applications. The storage device 116 receives the compression and encryption from the program packetizer 204 during the compression phase. Video, voice, and # system data. The operation of the storage device 116 is managed by the CEM controller 2 0. Now please refer to the network administrator 12 shown in Figure 5. The network administrator 120 controls and manages The central station 102 can also choose to control the entire digital cinema system 100, including controlling and monitoring one or more components of the cinema system 104. The control can be centralized so that the network administrator manages the overall operation of the system 'including transfer, playback / Display, security, and control of network management functions. Or, you can implement a distribution management system, its processor control in the presentation or cinema system control-this + Xi

^ 17G function. 28. This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page) ---- „-II Order ---- I-- -«Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

515205 V. Description of the invention (26) The network administrator 120 includes at least one network management processor 212, which is a central controller or the "brain" of a digital cinema system. The network administrator 120 is generally based on a standard platform workstation or similar programmable data processing hardware. The network management processor 212 manages the private and central station 102 security aspects. Under the control of the network administrator 12 &lt; 'control information or program update, it can be transmitted from the central station 102 to the movie theater subsystem 104 before the program playback time. The network management processor 212 also controls the rate at which programs are transferred or transferred to the cinema subsystem 104. The transmission rate can be fixed or variable, depending on the type of program and the design of the transfer channel or path. For example, it may depend on the transfer rate of a particular data link. At the same time, the day-to-day coded data rate of the stylized material can be changed by different programs, providing variable compression quality at different levels. The network management processor 212 and other components of the central station are in a central network interface, which is usually performed using a standard multi-drop network architecture. However, other known network designs and types can be used, including optically dominant links. In a preferred embodiment, the Ethernet central station 216 of the network management system 112 supports a central intranet network, as discussed herein with reference to FIG. The network administrator 120 may also include a modem 220, which provides an interface with a movie theater network on the Internet or PSTN, and generally includes a set of dial-up telephone modems, cables or satellite modems, ISDN or cells Link controller, or other known device. The modem 220 and the network management processor 212 pass through a modem server function interface. The modem 220 -29- (Please read the phonetic on the back? Matters and then fill out this page) ----- l --- Order --------- «Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and Consumer Cooperatives The paper format and the scale are applicable to China National Standard (CNS) A4 (210 X 297 mm) 515205 A7

V. Description of the invention (27) Please read the notes on the back side and then fill in this page. The function of this page is the receiver of the backhaul link communication path from the movie theater to the central station 102. For example, the movie theater manager 128 shown in FIG. 7 monitors the quality of the movie theater subsystem decompression step and provides a quality report to the network management system 120. The return path can be used by a movie theater to request the retransmission of erroneous program data blocks from the central station 102. Furthermore, program temporary screenings, or changes or programmatic material updates can be requested using this link. In another embodiment, the backhaul path may be provided via a satellite channel or another low data rate communication method or via the Internet. In this case, instead of using modem 220, other known interface methods or devices are implemented where appropriate. The user interface 224 allows the user to have direct control of the network administrator 112 'and therefore (to) the entire central station 102 and / or the cinema subsystem 104 (direct control). The user can monitor the status of the central station 102 and instruct the timing of the different modules of the central station 102. Furthermore, the user interface 224 allows the child storage device 116 to have various specific implementation configurations, including the type of storage medium used, and how and where the program is stored on the storage medium. A typical user interface 224 is a personal computer including a monitor and keyboard interface. Printed by the Consumer Affairs Agency of the Intellectual Property Office of the Ministry of Economic Affairs Now refer to Figure 6 for a block diagram of the Central Station Intranet 228. Central Station Intranet 228 is the communication hub of Central Station 102. The central station internal network 228 may be extended internally by an Ethernet network using an IP (Internet Protocol) protocol suite. Therefore, the central station internal network 228 actually puts the compressor / encryptor 112, the storage device 116, the network administrator 120, the conditional access administrator 120, and (optionally) the movie theater department-30- This paper scale applies Chinese National Standard (CNS) A4 specifications (G χ 297 mm) '-Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 515205 A7 B7 V. Description of the invention (28) Cinema 104 administrators of the system 104 To an Ethernet Central Station 232. At the same time, the central station internal network 228 may include redundant or back-up components to be used in the event of a failure of the primary component to meet availability requirements. According to the appropriate separation of local and remote functions from their specific functions, if required, an additional interface can be provided to connect the central station 102 to an external computer network or communication system. As shown in FIG. 2, the architecture of the television theater subsystem 104 is at least one and usually a plurality of theater administrators 132 controlled by the theater administrator 128. For example, in some commercial markets, movie theaters are structured as a movie theater, with many projection rooms at a location, often referred to as a movie city or a movie theater complex. The stored compressed information can be transferred to one or more auditorium modules 132 at a single movie theater complex. The projection hall module 132 includes a cinema storage device 136, a playback module 140, a decoder 144, a projector 148, and an audio module 152. In operation, the movie theater storage device 136 contains compressed information on the storage medium. Various specific embodiments of the storage device 136 are shown in FIG. 7. Generally speaking, the storage medium is actually transmitted from the central station 102 to the cinema subsystem 104, although the portion of our intended information may be transmitted from the central station 102 to the cinema subsystem 104. The storage medium may be one or more DVD discs 236 (FIGS. 7A and 7C), one or more removable hard disk drives 240 (FIG. 7B), and one in the playback module (FIG. 7D) ), A built-in hard disk drive (IHD) 244, a JB0D (only a bunch of disk drives) module 248 (Figure 8) that contains many memory components or any combination thereof. -31-This paper size applies Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the note on the back? Matters before filling out this page) Order --------- line «Economy Printed by the Ministry of Intellectual Property Bureau Consumer Cooperatives 515205 A7 B7 V. Description of the Invention (29) In a specific embodiment using DVD as a storage medium, several DVD magnetic disks 236 can be used. This specific embodiment is shown in FIG. 7A. Movies with an image compression bit rate of approximately 40 Mbps video track and an average of two hours of voice and control information at approximately eight Mbps require approximately 45GB of storage space. The current DVD ROM storage format is about 4.5GB to 18GB. On double-sided magnetic disks with a storage capacity greater than 9GB, it must be turned to read the second side of the magnetic disk. Therefore, despite the use of high-capacity DVD ROMs, several DVD ROM disks are still required to have sufficient capacity for a two-hour movie. As described earlier, it is better to separate the image information from the audio information. This specific embodiment is shown in FIG. 7C. The video program 252 is stored on a storage medium separate from the voice program 256. The storage can be a DVD disk or RHD. There are no requirements when using the present invention to process speech programs simultaneously. Maintaining the voice program separate from the video program allows synchronization of multiple languages in the voice program with the video program without the need to generate a video program for each language. Furthermore, maintaining separate voice programs allows multiple speakers to be supported without having to interleaving several youth coaches with the video program. In addition to video program 252 and voice program 256, separate promotion programs 260 or promo programs can be added to the system. The use of a separate promo program 260 allows updating promotional materials without requiring a new feature film program 252. The promo program 260 may include advertisements, trailers, controls, and / or typing information for the cinema subsystem 104. Using removable hard drives for storage media provides several benefits, such as -32- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before reading (Fill in this page) Order --------- line «A7 V. Description of the invention (3〇) 2Easy to copy and low error rate. This specific embodiment is shown in FIG. Π. The information stored on the hard disk 240 is easy to use the information of a standard personal computer (PC) to refresh the food λ α, and the brother wood is put on the magnetic core. Furthermore, because of the large storage capacity of removable hard drives, the number of removable hard drives required is greater than that of other media. Using hard drives reduces the possibility of manual error. Also, when a removable hard drive encounters a harsh environment, it is more likely to maintain the integrity of the data, such as handling a lot during transportation, or encountering dust, dirt, noise or noise Are other external matter. -In another embodiment which is not shown in FIG. 7D, in addition to other storage media, a built-in hard disk (IHD) 244 and a modem 264 are used. The storage of the information on the IHD 244 via the modem 264 allows the information to be sent directly to the cinema using existing communication systems such as telephone lines, ISDN, cable modems, or DSL links. For example, the update of advertisements and the trailer of Beixun can be transmitted and stored on the mD 244 through a telephone line. Updates &lt; Slides can be freely presented directly from the IHD 244 in the cinema • without affiliate promotions. The advertisement and trailer information updates are transmitted through the connection of the kiddie machine 264. As a result, considerable cost savings can be achieved, such as the cost of printing and distributing additional promotional program magnetic disks. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, another feature of the child IHD 244 is the function of the overall system of its data. Before being transmitted to the playback module, the IHD 244 checks the data integrity of the information stored on the storage media. The data system checks each block for electronic signatures. If any cyclic redundancy check block fails during the check, or if the data block is absent, its playback module uses the modem connection to request that the erroneous data block be resent. Once requested -33-This paper size · Standard Chinese Standard (CNS) A4 size (210 x 297 public love) 515205 Printed clothing A7 B7 of the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Description of the invention (31) The requested data block is stored on the IHD 244. When a module player program is played, the player module accesses the IHD 244 to play the requested data block at an appropriate time. In order to consider efficiency and data rate, the most useful way is to access a relatively small number of data blocks. If a large number of erroneous data blocks are found when checking system errors, an error indicator will let the user decide whether to request the actual data for the problematic data. Magnetic disk distribution. The use of the IHD 244 and the modem 264 is also beneficial for distributing encrypted keying materials. Encrypted keying materials and other control information are transmitted from the conditional access manager 124 to the IM 0 244, either by physically transmitting the data in a separate storage medium or by using the modem 264. As such, operating status, history, and other information can be transferred to the conditional access manager 124. Although the control information is transmitted from the central station 102, and although the movie theater subsystem 104 can receive all the transmitted information, the movie theater subsystem 104 can selectively only demodulate and store the intent to a specific movie theater The program of the module 104. If the IHD 244 has a sufficient capacity, or a 10,000-type video program, voice program, and / or promotion program using the JBOD module 348, it can be uploaded to the IHD from a storage medium. Using the IHD 244 allows the playback module to support dual feature films and other multiprogramming programs. Furthermore, a given feature film can be played on a multi-screen by uploading a program to a multi-player module, so that the feature film is played from the IHI) 244 of each player module. In another embodiment shown in FIG. 7E, a local area network (LAN) interface 268 may replace the modem interface 264 of FIG. 7D. Except -34- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page)

Printed by the Intellectual Property Bureau's Consumer Cooperatives of the Ministry of Economic Affairs 515205 A7 B7_ V. Description of Invention (32) In addition to the functions of the modem interface 264 described above, the local area network (LAN) interface 268 can be connected to one or More than one playback module and / or the cinema manager 128. The user interface (not shown) is connected to the local area network (LAN) interface 268 and / or the cinema manager 128, so that the user can remotely control and monitor such as program scheduling, control, and monitoring each playback module, Defective function of decoder module or video and audio module. Furthermore, my idea is to connect the network administrator 120 with the local area network (LAN) interface 268. The local area network (LAN) interface 268 also allows programs to be transferred between playback modules. A specific embodiment using multiple DVD magnetic disks 272a, 272b, ... 272n as storage media and a set of single-player DVD disc projectors 276a, 276b, ... 276n is shown in FIG. This set of single-play DVD disc projectors 276a, 276b, ... 276n plays back the information stored on the respective magnetic disks in a tandem mode in a predetermined order. The stored information is fed to a buffer 284 via a switch 280, such as the FIFO-RAM buffer 284 shown in FIG. The capacity of the FIFO RAM buffer 284 is sufficient so that the decoder 144 and the subsequent projector 148 are not overloaded or the information part is insufficiently loaded. In a preferred embodiment, the FIF0-RAM buffer 284 has a capacity of about 100 to 200 MB. The use of the FIF0_RAM buffer 284 is particularly advantageous when the DVD magnetic disks 272a, 272b, ... 272n are read in a serial mode. When DVD disks are read in tandem mode, there may be a few seconds delay when switching from one disk to another. The stored data is then fed to the decoder 144 via a Fibre Channel interface 288. The switch 280, buffer 284 and Fibre Channel interface are played by -35- This paper size applies to China National Standard (CNS) A4 specification (210 X 297 mm) ------------ install- ------ Order · -------- (Please read the precautions on the back before filling out this page) Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs Employee Cooperatives 515205 A7 B7 V. Description of Invention (33) CPU292 to control. This group of single-play DVD disc projectors 276a, 276b, _... 276n can also be played in parallel mode, as shown in FIG. In the parallel mode, the multiple DVD disc projectors 276a, 276b, ... 276n play different parts of the compressed information, and the parts are later combined in the playback module 140. The portions of the compressed information are read from the DVD disc projectors 276a, 276b, ... 276n to a parallel reading / unstriping mechanism 296, which appropriately arranges the portions of the compressed information. In a preferred specific practical example, the striping mechanism 296 is a software module accessible by the playback module 140. As shown in FIG. 9, the striping mechanism 296 is a software module accessed by the CPU 292 of the playback module 140. The striping mechanism 296 may reside in the CPU 292. The stripping mechanism 296 can also perform an error checking function to ensure that the playback is error-free. Some of this compressed information may contain redundant information in case some of the magnetic disks cannot be read or some compressed information is damaged. In these cases, the stripping mechanism 296 was able to use redundant information to recreate any damaged information. The redundant information and sequence can be stored on separate DVD disks and read (parallel) with other compressed disks 272a, 272b, ..., 272n. In another specific practical example which is similar to the specific practical examples shown in FIGS. 8 and 9, a DVD magazine may be used instead of the set of single-play DVD disks. As shown in Fig. 10, the DVD magazine 300 is similar to a known CD magazine. Multiple magnetic disks are inserted into the DVD magazine 300. Software control in the storage device 136, the playback module 140, or the CPU 292 ensures that the magnetic disks are properly installed and accessible in the proper order. Heduo-36- This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) ~ --------- Order · -------- (Please read the first Note: Please fill in this page again) 0 5. Description of the invention (M) Magnetic film feeds into a single DVD player. An exchange mechanism 304, as shown in FIG. 8, controls which DVD disk is inserted into the DVD player. In the specific practical example of the DVD magazine, either serial or parallel playback is acceptable. Figure 11 illustrates the operation of the auditorium module 132 using one or more removable hard disk drives (RHD) 308. For speed, capacity, and convenience considerations, more than one RHD308 can be used. When reading data sequentially, some RHDs have a special "prefetch" feature that anticipates the next read instruction based on a recent instruction history. This prefetching feature is useful because the time required to sequentially read information on the disk is reduced. However, if the RHD receives an instruction that is not expected, the time required to read the information on the disks out of order may increase. In this case, the pre-fetch feature of the RHD may cause the RHD's random access memory to be full, so more time is required to access the requested information. According to this, it is advantageous to have one or more RHD, because the sequential flow of data, such as a video program, can be read faster. Furthermore, accessing a second set of information, such as voice programs, trailers, control information, or advertisements, on a separate RHD disk is beneficial because accessing that information on a single RHD is time consuming. Therefore, the compressed information is read out of the buffer 284 from one or more RHD308s. The fif_RAm buffer 2 in the playback module 14o receives the compressed information portion from the storage device 136 at a predetermined rate. The capacity of the FIFO-RAM buffer 284 is large enough that the decoder 144 and the subsequent projector 148 will not be overloaded or under-informed. In -37- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 Gongai (Please read the precautions on the back before filling this page). ---- Order -------- Economy Printed by the Consumer Cooperatives of the Ministry of Intellectual Property Bureau and printed by the Consumer Cooperatives of the Ministry of Economics and Intellectual Property Bureau of the Ministry of Economic Affairs. 515205 A7 _____B7_ V. Description of the Invention (35) In a preferred embodiment, the capacity of the FIFO-RAM buffer 284 is approximately 100 to 200MB. When switching from one drive to another, the use of FIF0-RAM buffer 284 is particularly advantageous because there may be a delay of a few seconds. The portion of the compressed information is output from this FIFO-RAM buffer to a Network interface 2 88, which provides compressed information to the decoder 144. In a preferred embodiment, the network interface 288 is a Fibre Channel Arbitrated Loop (FC-AL) interface. There is no specific demonstration in another In a specific embodiment, the switching network controlled by the cinema manager 128 receives the output data from the playback module 140 and directs the data to a given decoder 144. Using the switching network allows any playback mode to be used. Programs above group 140 To be transferred to any given decoder 144. When viewing a program, the program information is retrieved from the storage device 136 and transferred to the auditorium module 132 via the cinema manager 128. The decoder 144 decrypts the data from the storage device 136, uses the key information provided only to authorized cinemas, and decompresses the storage information using the decompression algorithm, which is generated at the source generator 108 The inversion of the compression algorithm used. The decoder 144 converts the decompressed image information to the standard video format of the projection system (which can be analog or digital format), and the image is passed through an electronic projector 148 The audio information is also decompressed and provided to the sound system 152 of the auditorium for playback with the video program. The block diagram of the decoder 144 is also shown in Figure 11. The decoder 144 -38- This paper size applies to China National Standard (CNS) A4 specification (210 X 297 mm) (Please read the precautions on the back before filling this page) -------- Order --------- 515205 A7 V. The instructions (36) deal with a compression / encryption program so that it can be projected on a screen or surface for viewing and presented with sound using the audio system 152. The child decoder 144 controls it H 312 or the movie theater It is controlled by 128 members and includes at least one depacketizer 316, a controller, or 312, a buffer 314, an image decryptor / decompressor 3 24. The buffer can temporarily store the depacketizer 316. All of these can be applied to one or more circuit card combinations. The circuit card combinations may be housed in a self-sustaining enclosure mounted on or adjacent to the projector 148. In addition, a cryptographic smart card 328 between the controller 312 and / or the image decryptor / decompressor 320 can be used for transferring and storing unit-specific encrypted keying information. The depacketizer 316 identifies and separates control, image, and voice packets from the playback module 14q, CPU 312, and / or cinema manager 128 separately. The control packet can be sent to the cinema manager 128, and the video image bone packet is sent to the video and speech decryptor / decompressor systems 320 and 324, respectively. Read and write operations tend to occur suddenly. Therefore, the large buffer 314 is used to smoothly import the data from the depacketizer 316 to the projection equipment. The movie theater administrator 128 configures and manages the security of the movie theater subsystem 104 and operates and monitors the movie theater subsystem 104. These include its external interface, image and voice decryption / decompression modules 32 and 324, and the projector 14S and the audio module 1S2. Control information is input from the playback module 14, CPU312, cinema manager system 128, remote control porrt, or winter control input (such as control outside the chassis or main body of the theater module 132 (please read first Note on the back, please fill out this page) Order --------- Line j Printed by the Consumer Consumption Cooperative of Intellectual Property Bureau of the Ministry of Economy -39- A7

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 515205 V. Invention Description (37). The decoder CPUM2 can also manage the electronic key assigned to the auditorium module 132. The pre-selected electronic password key 'assigned to the auditorium module 132 is used with electronic keying material that embeds the image and voice information before the decompression step begins. In a preferred embodiment, the decoder CPU 312 uses a standard microprocessor and is embedded in software in each auditorium module 132 as a basic function or control element. In addition, the decoder controller 312 is preferably configured to work with the cinema manager 128 or to transport certain information to maintain the history presented in each auditorium. Information about this presented history is then available for delivery to the central station 102 using a backhaul link or via a transferable medium at a preselected time. The image decryption / decompressor 320 fetches the image data stream from the depacketizer 316 to decrypt it, and reconstructs the original image for presentation on the screen. The output of this operation typically provides a standard analog RGB signal to the digital cinema projector 148. Decryption and decompression are usually performed in real time, allowing real-time playback of stylized material. The image decryption / decompressor 320 decrypts and decompresses the image data stream to reverse the operations of the image compressor 184 and the image encryptor 188 of the central station. Each auditorium module 132 can process and project different programs from other auditorium modules 132 in the same cinema subsystem 104. One or more auditorium modules 132 can process and project the same program at the same time . Alternatively, the same program can be shown on a multiplayer projector, and the multiplayer projectors have some delay in time with each other. -40- This paper size applies to Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the note on the back? Matters before filling out this page) ------: .--- Order- -------- Line. 515205

The consumer property cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs printed the decryption process using the unit-specific and program-specific electronic encryption key information provided previously, combined with the embedded electronic data stream to decrypt it (the decryption process has been referred to Figure 4 When explaining). For all programs authorized to be shown in each of the auditorium modules 132, the necessary encryption key information is provided to each cinema subsystem 104. Multi-level I plus key managers are used to authorize specific display systems to project specific programs. This multi-level plus key administrator usually uses electronic keypads, which are for each authorized cinema administrator [28], a specific video and / or voice program, and / or a video and / or voice program. The key sequence within time is specific to the key. "Cinema-specific" electronic keys, usually 56-bit or longer, are written into each auditorium: Group 132 program. This program can be implemented using several techniques to transfer and present key information for use. For example, the backhaul link discussed above may be used to transfer password information from the conditional access manager 124 via a link. Or you can use smart card technology such as smart card 328, pre-programmed flash $ memory cards, and other known removable storage devices. For example, the smart card 328 is designed so that once it is loaded on the card, it cannot be read from the smart card memory. Physical and electronic security measures are used to prevent tampering with this key and to detect any tampering or reconciliation actions. The key is stored in such a way that it can be erased when it detects a tampering action. The smart card circuit includes a microprocessor core that contains an encryption algorithm, typically executing software for the Data Encryption Standard (DES). The smart card can be entered into the card provided. The paper size of the card is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm). -------- Order --------- (Please read the note on the back? Matters before filling out this page) «V. The algorithm on the description of invention (39) and the pre-stored hall specific key (or decryption), and output the result. Or, the "Thinking X X" is used to transfer encrypted electronic keys. The funds can be used in private theater subsystems. 28: The theater subsystems may be used as Image and language processing of key information used in the decryption step. The image program data stream undergoes dynamic image decompression and is decompressed using an inverse ABSDCT algorithm or other steps, which is symmetrical to the image compression used in the central station compressor / encryptor m. If the image compression is based on the ABSDCT algorithm, the decompression step includes variable-length ~ inverse frequency weighting, inverse differential quaternary tree transformation, IDCT, and DCT combiner deinterleaving. The processing elements used for decompression can be applied to specific hardware configured with this function, such as an ASIC or one or more circuit card combinations. Alternatively, the decompressed processing elements can be applied as standard components or generalized hardware, including digital signal processors or programmable electronic devices under the control of special function software or firmware programs. Or a computer. Multiple ASICs can be applied in parallel with processing image information to support high image data rates. The decompressed image data was digitally converted to an analogue, and the analogy was printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, and the L number was printed by Qin!] To the projector 148. Alternatively, a digital interface can be used to transport the decompressed digital image data to the projector 148, eliminating the need for digital-to-analog conversion. The voice decryptor / decompressor 324 takes the voice data stream from the depacketizer 310, decrypts it, and reassembles the original voice for presentation on the cinema speaker or voice sound system 152. Output of this operation -42- V. Description of the Invention (40) Normally, a voice signal of standard line level is provided to the audio system 152. Similar to the image decryptor / decompressor 320 Shovel-Muster, the speech bone decryptor / decompress% 324 will be reversed by the voice of the central station in the sleeve 192 and the cymbal encryptor 196. Using the electronic information embedded in the asset stream from the password intelligence 328, the decryptor 324 decrypts the voice information. The decrypted speech material is then decompressed. Speech decompression is performed using the algorithm symmetric algorithm used in the 1G2 speech compression at the central station. (If available) Multiple voice channels are shrunk. The number of backbone channels depends on the design of the multiple sound systems of a particular auditorium or display system. Additional voice channels can be transmitted from the central station ⑽ ’to enhance voice programming such as multilingual voice tracks and voice prompts for handicapped viewers. The system can also provide additional synchronized material tracks to the image program ’for special multimedia effects tracks, subtitles, and special visual cue tracks for visually impaired viewers. As previously discussed, the audio and data tracks can be synchronized to the video program time, or they can be presented asynchronously without time synchronization. The image program can include a single frame (ie a still image), a sequence of a single still frame, or a short or long sequence of action images. If required, these language channels are provided to a speech delay element, which inserts a delay as needed to synchronize the speech with the appropriate video frame. Each channel then undergoes a digital-to-analog conversion to provide an output known to the "line level" to the audio system 152. That is, the appropriate class: the level or format number, is generated from the digital data to drive the appropriate audio system. This line level output is usually the standard used in most audio systems -43-

V. Description of the invention (41) Printed on the XLR or AES / EBU connector by the consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The projector 148 presents an electronic representation of the program on the screen. High-quality projectors are based on advanced technologies, such as liquid crystal light valves (LCLV), which are used to process optical or image information. The projector 148 receives an image signal from the image decoder / decompressor 32o, which is usually a standard red-green-blue (RGB) video signal format. The transfer of information controlled and monitored by the projector 148 is usually provided by a digital continuous interface of the controller. Referring back to FIG. 11, the decoder chassis 144 includes a Fibre Channel interface 288, a depacketizer 316, a decoder controller or cpu3i2, an image decoder / decompressor 320, a voice decoder / decompressor 324, and a password. Smart card 328. The decoder chassis 144 is a secure, self-sufficient chassis that also includes a password smart card 328 interface, internal power and / or adjustments, cooling fans (if needed), local control panels, and external interfaces. The local control panel can use any known input device, such as a membrane switching flat panel using an embedded LED button tf device. The local control panel usually uses or forms part of a hinged access door to allow access to the interior of the chassis for maintenance purposes. This door has a security lock to prevent unauthorized entry, theft, or vandalism of the system. At the time of installation, the smart card 328 containing the keyed information (the special key of the auditorium) is installed in the decoder chassis 144, and is securely fixed behind the control panel before it is locked. The password smart card slot can only be accessed from the control panel before it is secured. The rgb signal from the image decrypter / decompressor 320 to the projector 148 is output on the decoder chassis 144, and is fully fixed. When the decoder chassis is mounted on the projector cover ____- 44- This paper Standards apply to China National Standard (CNS) A4 specifications (21G X 297 mm) -------- Please read the back ©

Order I ▲ m 515205 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 5. When the description of the invention (42), the RGB signal could not be accessed. When the decoder 144 is not properly installed to the projector 148, it is possible to use a secure interlock to prevent its operation. The audio system 152 presents the voice portion of a program on a cinema speaker. In a preferred embodiment, the audio system i52 can receive up to 12 channels of standard format voice signals from the voice decoder / decompressor 324, whether in digital or analog format. In another preferred embodiment, the playback module 140 and the decoder 144 are integrated into a single playback decoder unit 332. The result of combining the playback module 140 and the decoder module 148 is the cost and access time savings, because only a single CPU (292 or 312) is required to complete the functions of the playback module 140 and decoder 144. . The combination of the playback module and decoder μ # does not require the use of Fibre Channel interface 288. If you want to watch in multiple locations, the information on any storage device 136 is configured to pre-select a programmable offset or delay between different theaters to transfer the compressed information of a single image program to different projections hall. When a single video program is to be presented in multiple auditoriums substantially simultaneously, these preselected programmable offsets are essentially zero, or very small. At other times ’these offsets can be set to minutes to hours, depending on the storage configuration and capacity, in order to provide a very flexible show schedule. This allows a cinema complex to better respond to market needs, such as movie screenings. FIG. 13 is another preferred embodiment of the present invention. The user interface 3 allows the decoder 144, the projector 148 and the voice system 152-45-A4 specifications ⑽ x 297 public meals 1 ----- 1 --- order --------- (Please read the precautions on the back before filling this page) 515205 Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs printed clothing A7---------______ B7_— V. Description of Invention (43) The JBOD (only-heap drive) ⑽ contains magnetic storage media, such as hard drives, which store encrypted / compressed coded signals during playback scheduled in designated auditoriums. The JBOD 348 is designed to be scaled up or down to effectively support the storage needs of every movie theater. Each JBOD 348 also includes built-in redundancy to prevent the loss of stored program information if any storage unit fails. Each jBode 348 can be, for example, an erection system that can be expanded to accommodate the ever-changing storage needs of each cinema system. The use of JBOD 348 allows the cinema manager 128 to dynamically project projectors to screens of different sizes in the movie studio, and to schedule pre-production programming. This highly flexible approach is used to respond quickly to demand or market demand. In a preferred embodiment, the design of each JBOD MS is such that its storage capacity is equivalent to the program storage requirements of the theater hall location. Therefore, more than one feature can be shown on the same screen on the same day (dual feature). In addition, provide enough storage space to allow feature programs to store their current "licensed show" programs before their show authorization date. This amount of available storage capacity allows the program to be licensed for future near-term projections in authorized playback, hours, days, or weeks ago, and displays the program without affecting its ability to play and display current licensed programs. It is estimated that with this type of configuration, the storage capacity of digital data in each auditorium is approximately 120 billion GigaBytes. This capacity is assuming the use of sophisticated compression and imaging technologies, which may change to allow for a reduction in demand in the near future. The magnetic disk storage space is dynamically allocated for each program loaded with jB〇d 348-&quot; _ 46 _ This paper size applies to China National Standard (CNS) A4 regulations (21G X 297 public £ 7 (please read the first Please fill in this page again for the matters needing attention) ----- r --- Order --------- line " Applicable, because short and long flat sentences to normal length are generally about two hours. As a guideline for single-screen cinemas, the storage capacity should be sufficient to store the longest programs. 'JBOD 348 is also configured as or It can be configured to operate in a "striping" mode, which receives striping information across the (disk) array and temporarily stores it in the RAM buffer 349. That is, the received During storage, part of the stored material is transferred to different hard drives. The input of the shell material is transferred to one hard drive, and the next part is transferred to the next hard drive, and so on. Sufficient waiting time to allow a hard drive to populate data. A given hard drive can Arrange again to receive the incoming shellfish. As a result, the received data is separated into smaller parts or cymbals &amp; each segment is the largest (or highest) allowed by each hard drive on a separate hard drive ) Rate storage, making full use of the input buffer or the amount of storage available in the channel memory of the hard drive. This allows devices with slower transfer rates to essentially pull data in parallel, thus achieving very high transfer rates. This Such storage also provides error protection redundancy. Storing data on a hard drive, or other storage device, uses parity information, which allows programs to be reconstituted when retrieved. That is, To provide a device for linking program segments again during capture or presentation. In a preferred embodiment, each JBOD 348 uses a cheap Redundant Array. of lnexpensive Devices (RAID) set (please read the note on the back? Matters before filling out this page) Order --------- Line 1 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs any Changer failure, it has an entire data recovery

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 515205 A7 B7 V. Ability to invent (45) Archives. JBOD 348 provides status and warning indicators to assist fault checking or fault isolation. Long-range status, control, and diagnostics can use this design. The cinema manager 128 is shown in FIG. The theater manager 128 provides operational control and monitoring of the entire screening or theater subsystem 104, or one or more screening room modules 132 in the theater. The cinema manager 128 may also use a program-controlled device or agency to create a program group of individual video and voice programs received from one or more, which are scheduled to be shown in a theater system for an authorized time. The theater manager 128 includes a theater manager processor 336 and optionally includes at least one modem 340, or other device with a backhaul link interface for transmitting information back to the central station 102. The movie theater manager 128 may include a visual display element such as a monitor, and a user interface device such as a keyboard, which may be located in the office of the movie city manager, a ticket booth, or other suitable locations for convenient operation of the movie theater. The cinema manager processor 336 is typically a standard commercial or enterprise-grade computer. 12 and 2, the cinema manager processor 336 communicates with the network manager 120 and the conditional access manager 124. In a preferred embodiment, a modem 340 is used to communicate with the central station 102. The modem 340 is typically a standard telephone line modem which is located on or connected to a processor and is connected to a standard two-line telephone line to communicate between the cinema manager processor 336 and the central station 102. In another specific embodiment, the communication between the cinema manager processor 336 and the central station 102, -48- This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) (Please read the back first Please pay attention to this page and fill in this page) Order --------- line) 15205 Printed by the Consumers 'Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs A7 V. Invention Description (46)' &quot; You can use other low data # # @ 定 sheep communication devices such as the Internet, private or A-use Internet, money, or satellite communication systems are transmitted. For these options, the modem has been equipped with a suitable interface structure. 0 Go back to Figure 2 'The movie p through general g ~ 阬 $ 利贝 128 allows each screening hall', and 132 to total # 自 存 装置 136 通信… The cinema management module interface can include a buffer memory, so that information can be transferred at a high data rate from the cinema storage device 136 using the cinema administrator interface 126, and the projection hall group 132 Other components process information at a slower rate. Information communicated between the movie theater administrator 128 and the network administrator 120 and / or the conditional access administrator 124, including requests to be performed by the movie theater subsystem. , Monitoring and control information, operation reports and warnings' and password keyed information). All the information of the fork can be password protected to provide theft-type security and / or verification and confirmation. The cinema manager 128 can be configured to provide full automatic operation of the projection system, including playback / playback control, security, and network management functions. The movie theater administrator 128 can also provide control of peripheral movie theater functions, such as booking movie tickets and sales, snack sales operations, and environmental control. On the other hand, manual emergencies can be used to supplement some cinema operation controls. The cinema manager 128 can also interface with the control automation system of some existing cinemas to control or adjust these functions. The system to be used will depend on the available technology and the needs of the special cinema. -49- This paper size is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the note on the back? Matters before filling out this page )

515205 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the invention (depending on 47. By either controlling the cinema administrator 128 or the network administrator 120) The present invention usually supports multi-players. Simultaneous playback and display of recorded programs. Further, under the control of the movie theater administrator 128 or the network administrator 120, a program can be completed for playing multiple times, although the movie theater subsystem 104 only has The program needs to be received once. The security management can control the period and / or the number of times that each program is allowed. Through the network management module 112, the cinema administrator 128 is automatically controlled to provide a device for automatic storage and Presentation programs. In addition, there is the ability to use a control element to control certain preselected network operations from a remote location from a central device. For example, a television or movie studio may be able to automate and control films or other from a central location Distribution of presentations, such as from a work office, and can immediately change presentations to cope with the market Rapid changes, or response to presentation, or other reasons understandable in the art. Please refer back to FIG. 2. The cinema subsystem 104 can be connected to the cinema interface network 126 using The projection hall module 132. The cinema interface network 126 includes a local area network (electronic or optical) that provides local delivery of programs at the cinema subsystem 104. These programs are stored in each storage device In 136, the movie theater interface network 126 is delivered to the movie theater pure m- or more than one projection response system 132. The movie theater interface network 126 can make any number of standard local network structures, It shows the appropriate data transfer rate, connectivity, and (please read the precautions on the back before filling this page) Order --------- Line «

—— B: _ V. Explanation of the invention (48) &quot;-Words such as arbitration loop, exchange, or central network. Factory, 彡, ° mother-a storage device 136 provides authorized playback and display (please read the precautions on the back before filling out this page) ^ Localized storage of formatted materials. In a specific embodiment, the storage system is centralized in each cinema system. The movie theater storage device allows the movie theater subsystem 104 to create presentation events in one or more projection applications, and can be shared by several theaters at the same time. Once the movie theater storage device 136 can store several programs at a time, it depends on its capacity. The movie theater storage device ^ 136 can use a local area network connection, so that any program can be played and presented on any authorized display system (such as a projector). At the same time, the same program can be played on two or more display systems at the same time. In this way, a device and method for decoding, decompressing and decrypting image and / or voice information are provided. The device and method allow flexible arrangement of feature films and advertisements, integration of voice and image signals, easy installation of security measures, and other features and benefits. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The preferred embodiments are described in the foregoing, so that anyone skilled in the art can make or use the present invention. It will be obvious to those skilled in the art to implement different amendments, and the general principles defined herein can be applied to other specific embodiments without using the power of the present invention. Therefore, my intention is not to limit the present invention with the specific embodiments shown here, but to conform to the broadest scope of the disclosed principles and innovative features. -51-This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) 515205 91 · 9 · Year Month Day 5 Amendment Supplement No. 089125700 Patent Application Chinese Specification Revision Sheet (September 91) A7 B7 V. Description of the invention (483) Component symbol description 50 Film studio 156 Film image source 52 Film editor 164 South resolution television film device 54 Film reproduction component 168 Magnetic tape 56 Cinema-172 Voice reader 58 Film projector 176 and more Worker 100 Digital cinema installation 180 High-density digital video recorder 102 Central Station 184 Video Compressor 104 Cinema Subsystem 188 Video Encryptor 108 Source Generator 192 Voice Compressor 112 Compressor / Encryptor 196 Voice Encryptor 116 Central Station Storage device 200 Multiplexer 120 Network manager 204 Program packetizer 124 Conditional access manager 208 Compression / encryption module controller 128 Cinema manager 212 Network management processor 132 Cinema manager 216 Ethernet Central Station * 136 cinema storage device 220 modem 140 playback module 224 user interface 144 Coder 228 Central Station Internal Network 148 Projector 232 Ethernet Central Station 152 Audio Module 236 DVD Disc-51a- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 515205 Patent application No. 089125700 91 · Revised page of Chinese manual for Xiuqiu (September 91) A7 B7 Month β Supplement 75 V. Description of the invention (48b) 240 Removable hard disk drive 264 Modem 244 Built-in hard disk Machine 268 LAN interface 252 Video program 272 DVD disc 256 My program 276 DVD disc projector 260 Separate promotional program 280 Switch 284 FIFO-RAM buffer 288 Fibre Channel Interface 320 image decryptor / decompressor 292 playback module CPU 324 voice decryptor / decompressor 296 parallel read / unstriping mechanism 328 smart card 300 DVD disc cartridge 332 single playback decoder unit 304 exchange mechanism 336 movie theater Supervisor processor 308 Removable hard drive 340 Modem 312 Central processing unit (CPU) 344 User interface 314 Buffer 348 Entire drive 316 Unpacker 349 RAM buffer Punch -51b This paper size applies to China National Standard (CNS) A4 (21 × 297 mm)

Claims (1)

A B c D No. 089125700 Patent Application Chinese Patent Application Amendment (September 91) 々. Application for Patent Scope 1. A digital cinema is used to process encoded signals representing compressed and encrypted images from a storage medium in a digital cinema so that it can be displayed The image device, the device includes: a storage device for receiving the storage medium; and a decoder for receiving the compressed encrypted coded signals from the storage medium, the decoding II includes: a decryptor, Used to decrypt the compression-encoded signal; and a decompressor to receive the compressed-encoded signal from the decryptor and decompress the compressed-encoded signal to enable the image to be displayed. 2. For the device according to item 1 of the patent application, wherein the encoded signals further include encoded signals representing at least one voice program, wherein the storage device is further used to receive the storage medium, and the storage medium further includes at least one voice The encrypted compression-encoded speech signal of the program; wherein the decryptor is further used to receive the encrypted compression-encoded speech signals from the storage medium and decrypt the encrypted compression-encoded speech signals; and wherein the decompressor is further used To receive the compression-coded speech signals from the decoder and decompress the compression-coded speech signals to be able to play the at least one speech program. 3. For the device in the second scope of the patent application, the decoder is used to decrypt and decompress the codes in a discontinuous and independent manner. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) Video signal and voice program. 4. The device according to the patent application, wherein the decompressor is used to decompress the compression-encoded signals using an inverse adaptive block size type discrete cosine transform compression technique. 5. The device according to item 2 of the patent application, wherein the decompressor is used to decompress the compression-encoded speech program at a variable rate. 6. The device according to item 2 of the scope of patent application, wherein the coded image type L number forms at least one image program and further includes an identification item, wherein the S decompressor links the identification item to an image program containing at least one image program One or more voice programs. 7. If the device of the scope of the patent application, the coded image type No. 4 and the sound program are transmitted on the storage medium as a data packet, the decompressor further includes a depacketizer, which The coded video signals and the voice program are extracted from the data packets. 8. The device according to item 2 of the patent application, wherein the storage medium is further used to receive a device-specific key, and the decryptor is further used to decrypt the device under the conditions specified by the device's specific secret input. Etc. Compress the encrypted coded signal. 9. The device according to item 8 of the scope of patent application, wherein the device-specific key is stored in a key storage medium separate from the distant image or the bone-encoded signal. -2- This paper size applies to China National Standard (CNS) A4 specification (210 X 297 mm) 515205 A8 B8 C8 91 · 9 · 1-5 years-6 patent application scope 10. If the device of the patent application scope item 9 , Where the key storage medium is / smart card. i 1. The device as claimed in item 9 of the patent, wherein the Miyu storage medium is a magnetic disk. 12. If the device under the scope of patent application is No. 8, the device specific key will be transmitted. β 13. As for the device under the scope of patent application No. 8, the device further includes a device for referring to a time interval in which the device specific key is not valid, and for ensuring that only the time interval can use the device specific key. 14. If the device in the scope of patent application No. 13 is applied, the device specific key will be overwritten after the time interval expires. 15 • If the device of the scope of patent application, the encoded signals further include at least one watermark, wherein the watermark cannot be detected during the decompression of the video signal or the speech encoding program at a predetermined normal transfer rate, However, the watermark can be detected when the decompressed image-type signal or the speech encoding program is presented at a rate greatly different from the normal rate. For example, the device of item No. 15 of the scope of patent application, where after decompression, the watermark is used to identify the time and place of projection related to the coded image type signal or voice program. 17. If the device in the scope of the patent application is applied for, the device further includes a movie theater administrator. The movie theater administrator is used to # 送 控 -3- This paper standard applies to China National Standard (CNS) Α4 specifications ( 210 X 297 Public Director) '---------- Binding 515205 Application for patent scope A8 B8 C8 D8 Beixun sends and receives status information to the storage device and the decoder. 18. The device according to item 2 of the scope of patent application, wherein the device is used to build a one-key circuit, and wherein the link is used to transmit and receive information from outside the device. 19. The device of item 18 in the scope of patent application, wherein the information includes control and status information. 20. The device according to item 18 of Shenyang Patent Fanyuan, where the information includes updates to these coded video signals and voice programs. 21. The device of claim 18, wherein the link includes a dedicated telephone data link. 22. The device as claimed in claim 18, wherein the link includes a dial telephone data link. 23. The device of claim 18, wherein the link includes a packet-type data link. 24. The device of claim 18, wherein the link includes an Internet-type link. 25. The device of claim 18, wherein the link includes a wireless data link. 26. The device of claim 18, wherein the link includes a satellite data link. 27. If the device under the scope of patent application is applied for, the storage medium contains 4- This paper size applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) At least one optical storage medium. 28. The under-hair device according to item 27 of the scope of patent application, in which the child stores the media package sound and light to the storage medium, and wherein the encoded image-type signal and the two voice programs are stored in the multiple storage media in a sequential order. on. 29 · If item 27 of the scope of patent application is set, the coded voice program is stored on an optical storage medium separate from the coded shadows 1 ~ 1. The device further includes the code of the promotion information of this generation ^ and the sales information is represented by: etc., the flat code signal stores one and the full code, the flat code is on the image signal and the coded voice program On separate optical storage media. 31. The device body according to item 27 of the patent application contains at least one DVD disc. 32. The device according to item 2 of the patent application has at least one magnetic storage medium. 33. If the device in the scope of application for patent No. 32, I W1 Dinglin Yuedouba multi-magnetic storage medium, and A Φ Xi pen and paper, and the temple coded image-type signal and coded voice program are stored in a non-sequential manner- Shizi on the licking temple multiple magnetic storage. 34. If the item 32 of the scope of the application for a patent application is set, the encoded voice program is stored in a magnetic storage medium separate from the encoded image type signals, wherein the optical storage is in the storage media package. Wherein the storage media package Pretend Wei Fanli specially invites A BCD to be on the year. If the device of the scope of patent application is No. 32, the device further includes # ^ foot sales information coded signal and where these represent promotional discounts: code signals are stored in one and the Edit the video-type signal or separate the magnetic code on the magnetic storage medium. 36. The device of claim 32, wherein the magnetic storage medium includes at least one removable hard disk drive. 37. The device of claim 32, wherein the magnetic storage medium includes at least a series of disk drives (JB0D, Just a —A 〇f D — module, where the series of disk drive modules includes at least A storage component. 38. If the device of the scope of patent application of item 2 is applied, the device further includes a buffer H, which is used to synchronize the coded video signals and the playback of the voice program. A device, wherein the storage device includes a device for using the identification item information to facilitate linking different preselected portions of the coded video signal or the coded speech program to one of different storage media. Device, wherein the storage device further includes a method for providing parallel stripe information, reading and accessing the coded video signals or the coded voice program at a required data transfer rate, and providing error protection redundancy Device. 41. For example, the device of scope 2 of patent application, in which at least -6-515205 ABCD 6. Scope of Patent Application A network interface is used to interconnect at least the storage device, the decryptor, and the decompressor. 42. The device of claim 41, wherein the network interface includes an Ethernet network. 43. If the device of the patent application Fanyuan No. 2 is used, the coded image type signals are provided in the form of at least one image path-type, where the image path: is a single still frame or continuous frame type Displayed as a variable length animation. 44. If the device of the scope of patent application is the second item, the encoded image-type signals and voice programs stored on the storage medium are copied to at least one second storage medium, which facilitates multiple presentation of the encoded images Signal and voice program. 45. The device according to item 44 of the scope of patent application, wherein updates to the encoded image-type signals and voice programs are stored on at least a second storage medium. 46. The device of claim 45, wherein the at least one second storage medium is a built-in hard disk drive. 47. If the device of the scope of patent application is No. 2, the device further includes a device for archiving and maintaining the coded image-type signals and the voice program playback historical data. 48. The device according to item 2 of the patent application, wherein the coded signals further include a coded signal representing a cue track, wherein the paper size of the cue track applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 515205 A8 B8 C8 D8 The specific part of the program to which the instruction information can be linked. 49. As described in item 2 of the material benefit range, the device further includes a playback device, wherein the child player is used to allocate the encoded signals with preselected programmable offsets relative to each other. 50. If the scope of application for patent scope is 49 items, in which the pre-selected programmable offset is substantially zero, the coded image type signals are processed in this way so that the images can be displayed substantially simultaneously at the same time. 51. The device according to claim 1 of the patent scope, further comprising a projection device for enabling display of the image represented by the encoded signals. 52. The device according to item 2 of the scope of patent application, the device further comprises a voice player for playing the voice program in synchronization with the video display. 53 · —A method for processing, in a digital movie theater, a coded signal representing a compressed image and an image in the form of a storage medium to display the image. The method includes the following steps: Extracting compression and encryption from the storage medium Encode the signals; decompress and encrypt the encrypted encoded signals to generate a compressed encoded signal; and decompress the compressed encoded signals to be able to display the image. 54. The method according to item 53 of the patent application, wherein the coded signals further include a coded signal representing at least one voice program, of which: -8- This paper size applies to China National Standard (CNS) A4 specification (210X 297 mm) ) Binding 515205 A BCD The scope of the patent application The retrieval step further includes retrieving the compressed encrypted coded signal of at least one voice program in the substitution table; the decryption step further includes decrypting the compressed encrypted coded signal representing at least one voice program to generate a mill representing at least one voice program. Decompressing the coded signal; and the decompressing step further includes decompressing the compressed coded signal representing at least one speech interpretation to be able to display the image. 55. The method according to item 54 of the patent application, wherein the steps of decrypting and decompressing the coded image-type signal and the speech program occur in a discontinuous, independent manner. 56. The method according to item 54 of the application, wherein the step of decompressing uses an inverse adaptive block size type discrete cosine transform compression technique. 57. The method of claim 54 in which the nightmares of the decompressor occur at a variable rate. 58. The method according to item 54 of the patent application scope, further comprising the following resources: grouping the coded image-type signals to form at least one image-shifting type; and combining one or more voice programs with the at least one image program 59. The method according to item 54 of the scope of patent application, wherein the coded image signal and the voice program are stored as a data seal / Xiba ’s child storage 9- This paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) on the scope of the patent application, and the decompression step further includes extracting the coded image type &lt; sign and the step of the voice program from the data package, such as The method of applying for the scope of patent application No. 54 further includes the step of obtaining a special key, and the decryption step occurs under the determination of the specific key. , ‘, Case = 申 = Scope 6th. The method of item, wherein the specific secret wheel is on a storage medium separate from the Hasselblad-coded video signal or the voice program.迨 Green where the key storage medium is used, where the key storage medium is used, where the key storage medium is used to transmit the specific secret 62. The method according to item 61 of the patent application includes a smart card. 63. The method of claim 61 includes a magnetic storage medium. 64. The method of claim 61 includes an optical storage medium. 65. The method key of the scope of patent application No. 60. 66. If the method of applying for the scope of the patent No. 60, the present, one ,, and other methods further include a hidden time to indicate that the specific key is valid, and to ensure that only the specific interval can use the specific key. Key steps. 67. For the method of applying for the item %% of the patent scope, λ,, Xinwanzhong, including the step of overwriting the specific key after the time interval expires. 68 · If the method of applying for the scope of the patent No. 54, the present and the present, the person is the electric method, including the mention -10- This paper size applies to the Chinese National Standard (CNS) A4 specification (210 X 297) ) 515205 rum Α8 Β8! Years Bukanshi Toshi 4 for at least one watermark, in which the decompressed image is presented at a predetermined normal transfer rate. Heart mi hang transfer. ”The child watermark cannot be sacrificed during the TU 4 or one-tone encoding program, as the county a ^ L ^ ,, 疋, see μ decompression, # ~ image signal or the speech code to test the watermark at a rate that is greatly different from the normal rate. 7 "" Detecting 69. If the application for the scope of the patent 6th item /, <Wanfa In which, after the decompression step, the watermark identifies information about the show time and place related to the decompressed encoded image-type signals or the speech encoding programs. 70. If the method of the scope of application for a patent is No. 54, the method further comprises a step for a cinema manager, wherein the cinema manager sends and receives information on the status and control of these storage, decryption and decompression steps. 71. If the method according to item 67 of the patent application is applied, the method further includes establishing a link to transmit and receive information. 72. If the method in the 71st scope of the patent application, the information contains status and control information. 73. The method of claim 71, where the information includes updates to these coded video signals and voice programs. 74. The method of claim 71, wherein the link includes a dedicated telephone data link. θ 75. The method of claim 71, wherein the link includes a dial telephone data link. -11-This paper size applies to China National Standard (CNS) Α4 size (21 × 297 mm) The scope of patent application A BCD 9 years 6. If the method of the scope of patent application No. 71, the link contains-a data link of the packet type. 77. The method of claim 71, wherein the link includes an Internet-type link. 78. The method of claim 71, wherein the link includes a wireless data link. t… 79. The method of claim 71, wherein the link includes a satellite data link. ⑽ · The method according to the scope of patent application, wherein the storage medium in 纟 includes at least one magnetic storage medium. 81. The method of claim 80, wherein the storage medium comprises a multiple magnetic storage medium, and the encoded image-type signals and encoded voice programs are stored on the multiple magnetic storage medium in a non-sequential manner. 82. If the method of the scope of the patent application is applied, the coded voice program in the system is stored on an optical storage medium separate from the coded image type signals. 8 3 · If the method of the scope of patent application No. 80, the method further includes the step of replacing the encoded signal of the promotional information, and the encoded signals representing the promotional information are stored-and the encoded images Type signal and the encoded speech program on separate optical storage media. 84. The method of claim 80, wherein the storage medium includes at least one DVD disk. -12- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 515205 85. For example, the method according to item 80 of the patent, wherein the storage medium includes a removable hard disk drive of up to 乂. δ6. Item 80 of the scope of the patent application, such as Gubei &lt; Wanfa, where the storage medium contains the V-JBOD module. 87. The method of claim 80 in the scope of patent application, the method further comprises buffering the coded video signal and audio program such as buffer 1 to synchronize the steps of the temple coded video signal and the speech program during playback. For example, please refer to the method in the scope of patent No. 54. The method further includes the step of connecting different preselected parts of a coded video signal or coded speech program to one of different storage media. 89. In the case of the 54th &amp; patent application scope, the method further includes providing parallel stripe information so as to be able to access the edge-encoded video signal or the encoded voice at the required data transfer rate. Procedures and provide steps to protect against redundancy. 90. The method of claim 54 further includes the step of providing at least one local network interface. 91. The method according to item 90 of the patent application, wherein the local area network interface includes an Ethernet network. 92. The method according to item 90 of the patent application range, wherein the coded image-type signals are provided in the form of at least one image program, wherein the image program is in the form of a single still frame or continuous frame, and is a variable-length animation display. -13- This paper size applies to China National Standard (CNS) A4 (210X297 mm) Hold 515205 A8 B8 C8 -------- D8 VI. Patent Application Range 93. If the method of patent application No. 54 method, the method further includes the encoded image-type signals and voice programs to be stored on the storage medium of the child. Copying to at least one second storage medium facilitates multiple steps of presenting the encoded image-type signals and voice programs. 94. The method of claim 93, further comprising the step of storing updates to the encoded image-type signals and voice programs on at least one second storage medium. 95. The method of claim 54 in the scope of patent application, the method further comprising the steps of backing up and maintaining the coded image-type signals and the playback history data of the voice programs. 96. The method of claim 54 in the scope of patent application, the method further comprising the steps of using the coded video-type signal or a specific part of the voice program with unlinkable information. 97. The method of claim 54, further comprising the step of displaying the encoded signals representing an image. 98. The method of claim 54, further comprising the step of allocating the encoded signals with preselected programmable offsets relative to each other. 99. The method of claim 98, wherein the pre-selected programmable offsets are substantially zero, and the encoded image-type signals are processed in this manner so that the images can be displayed multiple times substantially simultaneously. -14- This paper size applies to China National Standard (CNS) A4 specification (210 X 297 public directors) 515205 A8 B8 C8 D8 Scope of patent application 100. The method of claim 97, further comprising a step of playing the voice program in synchronization with the video display. 101 · —A device for processing encoded signals representing compressed and encrypted images from a storage medium in a digital movie theater to be able to display the image, the device comprising: a device for receiving the storage medium &amp; Means for receiving the compressed encrypted coded signals from the storage medium; ΰ means for decrypting the compressed encrypted coded signals; and means for receiving compressed encoded signals from the decryptor and decompressing the compressed encoded signals Signal to enable the device to display the image. 102. If the device according to item 101 of the patent application scope, wherein the coded signals further include a coded signal representing at least one speech program, the device further comprises: receiving an encrypted compression coded speech signal representing at least one speech program. A device for decompressing the encrypted compression-coded speech signals; and a device for decompressing the compression-coded speech signals so as to be able to play the voice program. V muscle is the device of item 102 of the Korean Patent Fanyuan, which is used to solve the device use-inverse adaptive block size type discrete cosine transform compression technique. Also this paper is suitable for the national standard (CNS) A4 specification (2ιχχ 15-515205) 6. The scope of patent application AB CD .WWI 104. If the device of the scope of patent application 102 is applied, it should be used for decompression. The device is used to decompress the compression coded speech program at a variable rate. 105. The device of the scope of application for patent No. 102, wherein the coded image type signal and / or the speech program are in the data packet. Storage 2 is transmitted on-the-fly, wherein the device for decompression further includes a device for decapsulating the encoded image-type signals and voice programs from the data packets. Q 106 · —a digital cinema processing representative from A device capable of displaying a compressed and encrypted image encoded signal on a storage medium to display the image, the device comprising: a storage device for receiving the storage medium; and "a device for receiving the A decoder for compressing an encrypted coded signal, the decoder comprising: a decryptor for decrypting the compressed encrypted coded signal; and a decompressor for receiving The decompressor compresses the encoded signals and decompresses the compressed encoded signals to enable the image to be displayed. The decompressor uses an inverse adaptive block size type discrete cosine transform compression technique. Device of item 106, wherein the coded signals further include a coded signal representing at least one voice program. -16- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 515205 A8 B8 C8 D8 々. The scope of patent application where the decryptor is further used to receive encrypted compressed encoded speech signals from the storage medium and decrypt the encrypted compressed encoded speech signals; and the decompressor is further used Receiving the compressed coded speech signals from the decryptor, and decompressing the compressed coded speech signals so as to be able to play at least one speech program. 108. A device for processing a coded signal representing a compressed and encrypted image from a storage medium in a digital cinema to display the image. The device includes: a storage device for receiving the storage medium and for Receiving a device-specific key; and a decoder for receiving the compressed encrypted coded signals from the storage medium, the decoder comprising: a decryptor for use under conditions determined by the device-specific key Decrypting the compressed and encoded signals; and a decompressor for receiving the compressed and encoded signals from the decryptor, and decompressing the compressed and encoded signals so that the image can be displayed. 109. For the device under the scope of application for patent No. 108, the coded signals further include a coded signal representing at least one voice program. k order 515205 A B c D Zhengchong 6. The scope of patent application where the storage device is further used to receive the storage medium, the storage medium further comprises an encrypted compression coded speech signal representing at least one voice program; wherein the decryptor is further used to receive the storage medium The encrypted compression-coded speech signals, and decrypting the encrypted compression-coded speech signals; and the decompressor is further used to receive the compressed-coded speech signals from the decryptor, and decompress the compressed codes A voice signal to be able to play the at least one voice program. -18- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)