Patent Publication Number: US-2023156252-A1

Title: System and method for alternate program experience in digital broadcasting

Description:
FIELD OF INVENTION 
     This invention comes under the field of digital broadcasting, specifically under the field of transmission of alternate programs and reception and presentation of these programs in a broadcast environment. 
     BACKGROUND OF THE INVENTION 
     Television and radio remain one of the prime systems of entertainment in the world, despite the rise of the internet. With technological development, the traditional systems like television, radio, etc. are digitized and brought under the umbrella of IoT (Internet of Things), so that these systems can be connected through the world of the internet and various possibilities hitherto unexplored can be ventured upon. The traditional mode of information broadcasting is being phased out in favour of streaming services, different modes of information broadcasting like viewer-focused mode of broadcasting, etc. In an era where the customer is the most precious commodity, different television broadcasters vie for every ounce of the viewer&#39;s attention and offer diverse varieties in content, availability timing, etc. catering to different user preferences. 
     The term broadcasting refers to the distribution of signals through a particular medium, so that the signals can be received by many people at different locations. The signals can be audio or video, a combination of both, depending on the business models of the broadcaster. Radio and Television are typical examples of these transmission models. From one-on-one communications in the form of a telegraph, telephone, signal transmission and distribution evolved to one-to-many distribution or broadcasting, which laid the foundation for modern television and radios. In the beginning, signal transmission was only in analogue, where one signal form took over the entire bandwidth. With the evolution in the digitization of signals, several signals could be compressed using digital techniques and transmitted over a single bandwidth. 
     There are three main analogue television/video standards in use throughout the world: 
     NTSC: (National Television System Committee) used in the USA, Canada, Japan and some other countries 
     PAL: (Phase Alternating Line) used in most of western Europe, Australasia and South Africa 
     SECAM: (système électronique couleur avec mémoire, French for Electronic system colour with memory) used in France, Africa and eastern Europe. 
     The three systems are not compatible with each other. All the countries using SECAM are currently in the process of conversion, or have already converted to Digital Video Broadcasting (DVB), those using NTSC are currently transitioning to the ATSC (Advanced Television Systems Committee) standard, or to DVB, ISDB (Integrated Services Digital Broadcasting) or DTMB (Digital Terrestrial Multimedia Broadcast), while those using PAL are transitioning to DVB, ISDB or DTMB. These are the different digital broadcasting standards followed by various countries throughout the world. In Digital broadcasting, the channels are transmitted over fibre or optic cables, over the air (terrestrial), and satellites etc. Communications satellites are used to send television signals directly to the homes of viewers—a form of transmission called direct broadcast satellite (DBS) television. 
     Hence a single bandwidth can now carry multiple channels, laying the foundation for modern broadcasting. With multiplexing, which involves interleaving several lossless compressed signals using a carrier signal, further development was brought about resulting in an explosion of progress leading to innumerable channel and program choices and competition in the broadcasting scene. 
     Signals are multiplexed using CDM (Code Division Multiplexing) or other multiplexing technologies, depending on the standards followed by the broadcasters. Multiplexing involves the consolidation of several network signals into a single complex signal and transmission over coaxial cables, fibre cables, satellites, etc. On reaching the appropriate destination, the demultiplexers separates the signals and outputs them to individual lines. 
     In telecommunications, a carrier wave/carrier signal is a waveform that is modulated (modified) with the signal to be transmitted, for the purpose of conveying information. The modification can be made on the frequency or the wavelength of the carrier wave. 
     In analog transmission, signals are multiplexed using frequency-division multiplexing (FDM), in which different signals are combined/multiplexed for transmission on a single channel carrier signal by varying/dividing the carrier signal frequencies according to the signals to be transmitted and assigning a frequency for a particular channel In digital transmission, signals are usually multiplexed using time-division multiplexing (TDM), in which the multiple signals are carried over the same channel in alternating time slots. In some optical fiber networks, multiple signals are transmitted together as separate wavelengths of light using dense wavelength division multiplexing (DWDM) or WDM (Wavelength Division Multiplexing). Orthogonal frequency-division multiplexing (OFDM) is a method of digital transmission by encoding the digital information on multiple carrier frequencies. OFDM is now popularly used for wideband digital communication, for example, in digital television and audio broadcasting, internet, wireless networks, 4G/5G mobile communications, etc. 
     In television broadcasting, a multiplex (mux/virtual sub-channel/bouquet) is a grouping of program services as interleaved data packets that can be broadcast over a network or a modulated multiplexed medium. The program services are split out at the receiving end, depending on the multiplexing techniques and standards followed by that particular country and the broadcasters. 
     Television and Radio audience are different categories due to their interest in the program, time availability etc. Usually, the audience is diverse in nature. While one set of audience wants to watch a program in detail due to their taste and time availability, another set of audience may want to watch only the critical summary of the program. Further, there could be dynamic variations in the interest of the same person. For example, after viewing the tiny version (critical summary) of a program, he/she could get interested in viewing the detailed version of the program. 
     Current broadcasting technology does not cater to such diverse nature of audience and only one version of the program gets broadcasted and the audience have no other choice to watch it in full or to fast forward through the entire program to get the gist of the program, which is a tedious way of watching any program. 
     A few patents on innovation in the field of broadcasting are discussed below: 
     The patent US20160365120A1: Video editing system for generating multiple final cut clips, discusses about a video editing apparatus and method for generating multiple final cut clips. In one embodiment, a video editing system comprises editing processing logic controllable to perform, on one or more raw input feeds, a plurality of different edits to render one or more final cut clips for viewing, where each of the one or more edits transforms data from one or more of the raw input feeds into the one or more of the plurality of final cut clips by generating tags that identify highlights from signals, and generating one or more variations of the final cut clips as a result of independent control and application of the editing processing logic to data from the one or more raw input feeds. This idea related to video editing apparatus which is used for multiple versions of a single recorded data based on the external meta data and/or preferences. This idea is different from the present invention&#39;s core idea of multiplexing different time duration-based versions of the currently broadcasted program in a broadcast environment. 
     In the patent U.S. Pat. No. 10,560,746B2: Methods and systems for generating and providing program guides and content, Systems and methods for identifying, assembling, and publishing content are described. A content item, such as a video, having a first-time length, is identified by a system to be included in a program scheduled for a first time period. The video may be hosted on a third-party system. A first span of time within the first program is allocated for the video, wherein the first span of time is longer than the first-time length. The system determines, prior to or at the first time period, a time difference between a current length of the video and the first span of time. At least partly in response to determining that the video has a time length shorter than the first span of time, the system selects supplemental content based at least in part of the determined time difference to be streamed to user terminals over a data network within the first time period. This patent describes a system and method for selection and presentation of a replacement program when a program scheduled to be presented is no longer accessible from a third-party content server. In this patent the different versions of content are sent one after another. This idea is different from the present invention&#39;s core idea of multiplexing different versions(duration) of the currently broadcasting program in a broadcast environment. 
     Our present invention offers a system or method for a better way of captivating the attention and interest of the audience by offering a plurality of versions of the same program with varying duration, rather than just a single version of the same program. This could be made available to the user on a premium basis or to everyone depending on the business model of the broadcaster. Such broadcast services are called Special Experience Services (SES). 
     OBJECTIVE OF THE INVENTION 
     The main objective of our invention is to provide a system and method to provide an alternate viewing experience in digital broadcasting by offering versions of different durations of the same program, in accordance with the audience/user preference. The secondary objective of our system is to multiplex different versions of the same program so that the receiver can decode them and present the options to the user on demand or as services, depending on the business model of the broadcaster. 
     SUMMARY OF THE INVENTION 
     The following summary is provided to facilitate a clear understanding of the new features in the disclosed embodiment and it is not intended to be a full, detailed description. A detailed description of all the aspects of the disclosed invention can be understood by reviewing the full specification, the drawing and the claims and the abstract, as a whole. 
     The major problem addressed by the invention is towards the development of a system or and a method for providing an alternate experience, different from the current ones as experienced by the consumer of the broadcasted programs. Our invention provides the option of viewing the same program, but with different durations: they can either be a summary, or a critical scenes view, standard view or the detailed version, depending on the user&#39;s preference at that time. Thus, our system presents a different method of presenting variants of the same program to the user, based on their current preference. 
     The program viewing decision of the audience depends on their taste and time availability. Instead of holding the viewers in captive to watch the program in full length or fast forwarding through the program and provide a quality experience for the audience, our present invention multiplexes different length versions of the same program and provides the viewer the option of viewing summaries/critical scenes/standard or the detailed version of the same program as a special services that the broadcaster can provide as a premium subscription or as a view-on-demand, depending on their business model. Such broadcast services are called Special Experience Services (SES). 
     In one embodiment, every program broadcasted in a SES could have different versions as listed below:
         Tiny version   Short version   Standard version   Main/detailed version       

     Each of these versions are created based on the time duration. Default program transmission will be the main/detailed version. Different versions of the same program are sent as different services within the same frequency. However, all special services are not visible to the user for selection. Associated with each SES, there are hidden services and each of these hidden services are transmitting different versions of the same program. 
     The Digital Broadcast Media Receiver (Television supporting standards like the ATSC, DVB, ISDB, DTMB or Radio supporting standards such as DRM, DAB, CDR, ISDB-Tsb etc.) upon receiving the channel information of a particular frequency parses the channel information data and builds service list. While parsing the channel information, the Broadcast Media Receiver will understand the presence of SES and the different hidden services associated with the SES. If the user is premium or if the alternate experience of SES program is available to all, user will be presented with the option of viewing different versions of the program. Depending on the user selection of the version, receiver switches to the respective hidden service. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The manner in which the proposed system works is given a more particular description below, briefly summarized above, may be had by reference to the components, some of which is illustrated in the appended drawing It is to be noted; however, that the appended drawing illustrates only typical embodiments of this system and are therefore should not be considered limiting of its scope, for the system may admit to other equally effective embodiments. 
       Throughout the drawings, the same drawing reference numerals will be understood to refer to the same elements and features. 
       The features and advantages of the present proposed system will become more apparent from the following detailed description a long with the accompanying figures, which forms a part of this application and in which: 
         FIG.  1   : Block Diagram describing the Special Experience Services and associated Hidden Services in Digital Broadcasting features of our system in accordance with our present invention; 
         FIG.  2   : Flow Chart indicating the SES presentation in our system in accordance with our present invention; 
         FIG.  3   : Block Diagram representing the repeat broadcasting of the shorter versions vis-à-vis duration of the program in our system in accordance with our present invention. 
         FIG.  4   : Block Diagram describing the components and the workflow of our system in accordance with our present invention 
         FIG.  5   : Block Diagram describing the components and the workflow of our system in accordance with our present invention; 
     
    
    
     REFERENCE NUMERALS 
       100  Channel Information 
       101  Service Information 
       102  Special Service 
       103  Main/Visible Service 
       104  Hidden Service  1   
       105  Hidden Service  2   
       106  Hidden Service  3   
       107  Main Version 
       108  Tiny Version 
       109  Short Version 
       110  Standard Version 
       200  Receiver in tuned state 
       201  Check presence of SES in channel information 
       202  If the condition  201  is not fulfilled 
       203  If the condition  201  is fulfilled 
       204  Parse Service information for getting SES details 
       205  SES Program version information is presented to User 
       206  User selects any SES program version 
       207  If the condition  206  is not fulfilled 
       208  If the condition  206  is fulfilled 
       209  Selected SES program version is played 
       300  Main/Detailed Version 
       301  Tiny  1   
       302  Tiny  2   
       303  Tiny  3   
       304  Tiny  4   
       305  Tiny  5   
       306  Tiny  6   
       307  Tiny  7   
       308  Tiny  8   
       309  Short  1   
       310  Short  2   
       311  Short  3   
       312  Short  4   
       313  Short  5   
       314  Short  6   
       315  Standard  1   
       316  Standard  2   
       317  Standard  3   
       318  Standard  4   
       319  TS time axis 
       320  T 1  time axis 
       321  TE time axis 
       322  Time axis 
       400  Channel Information 
       401  Service Information 
       402  Main Content Generator 
       403  SES Content Generator 
       404  Content Multiplexer 
       405  Digital Media Signal Generator 
       406  Transmitter Antenna 
       500  Receiver Antenna 
       501  Signal Demodulator 
       502  Content Demultiplexer 
       503  Channel Information 
       504  Service Information 
       505  Main Version 
       506  Tiny Version 
       507  Short Version 
       508  Standard Version 
     DETAILED DESCRIPTION OF THE INVENTION 
     The principles of operation, design configurations and evaluation values in these non-limiting examples can be varied and are merely cited to illustrate at least one embodiment of the invention, without limiting the scope thereof. 
     The embodiments disclosed herein can be expressed in different forms and should not be considered as limited to the listed embodiments in the disclosed invention. The various embodiments outlined in the subsequent sections are construed such that it provides a complete and a thorough understanding of the disclosed invention, by clearly describing the scope of the invention, for those skilled in the art. 
     In broadcasting, the diverse nature of audience is considered and only one version of the program gets broadcasted and the audience are held captive to watch the way the program is broadcasted. 
     Hence, it may be better for the broadcaster to send plurality of versions of the same program to cater to different audience types rather than holding them captive. This could be made available to the user on a premium basis or to everyone as on-demand/a-la-carte, depending on the business model of the broadcaster. Such broadcast services are called Special Experience Services (SES). 
     In one embodiment, every program broadcasted in a SES could have different versions as listed below.
         Tiny version   short version   standard version   main/detailed version       

     Each of these versions are derived based on the time duration. Default program transmission will be the main/detailed version. Different versions of the same program are sent as different services within the same frequency. However, not all special services are visible to the user for selection. Associated with each SES, there are hidden services and each of these hidden services are transmitting different versions of the same program. So now, the user will be presented with the option of viewing different versions of the program. Depending on the user selection of the version, the receiver switches to the respective hidden service. 
     The Special Experience Services and associated Hidden Services in Digital Broadcasting features of the present invention is illustrated in  FIG.  1   . The Channel Information ( 100 ) contains the Service information ( 101 ), which contains details about the special service ( 102 ). The special service, in this embodiment consists of: the main/visible service ( 103 ), which is the Main Version ( 107 ), the hidden service  1  ( 104 ) which is the tiny version ( 108 ), the hidden service  2  ( 105 ) which is the short version( 109 ), and the hidden service  3  ( 106 ) which is the standard version( 110 ). 
       FIG.  2    represents the SES presentation in flowchart form. The Receiver in the tuned state ( 200 ) checks for the presence of SES in the channel information ( 201 ). If there is no SES ( 202 ), it keeps a lookout for other incoming signals for SES. On presence of SES ( 203 ), the receiver parses Service information ( 204 ) for getting SES details and presents it to the user ( 205 ). When the user selects any version of the program ( 206 ), the selected SES version is played ( 208 ). 
     While playing a version, user will have an option to switch to other versions or go to live. If the user selects a version, it will be played by switching to the corresponding hidden service. 
     Shorter versions of the program could be broadcasted again in a cyclic fashion in their respective hidden services once the shorter version of program broadcast is completed entirely. Such cyclic broadcasting of shorter versions of the program could be repeated till the end of the original version of the program in the main/visible service. 
     In another embodiment of our present invention, for a user switching on the Television or Radio receiver after the program has started, he/she could still switch to the hidden service during the beginning of next cycle of shorter version transmission. In order to enable user selection, availability of shorter versions (from the beginning) will be indicated to the user through an appropriate User Interface. 
     In another embodiment, of our present invention, the user will be able to switch to shorter versions even though the live transmission position of the selected version may not be in the start parallelly along with that particular selected version. 
       FIG.  3    Represents the repeat broadcasting of the shorter versions vis-à-vis duration of the program. Where, ( 319 ) is the start time, ( 321 ) is the end time and ( 320 ) is an intermediate time. 
     If the user starts watching at ( 319 ), all the versions are available from the beginning. If the user starts to watch the program at ( 320 ), user will miss out some part of the main version ( 300 ). Since the tiny ( 301 ,  302 ,  303 ,  304 ,  305 ,  306 ,  307 ,  308 ), short ( 309 ,  310 ,  311 ,  312 ,  313 ,  314 ) and standard ( 315 ,  316 ,  317 ,  318 ) versions are cyclic, user can switch to these versions as soon as their next broadcast transmission cycle starts. When the next broadcast transmission cycle a program version is about to start, user will be presented with the option to switch to the particular version/s. 
       FIG.  4    represents the digital media broadcaster system. SES (Special Experience Services) are generated from main content. Main content ( 402 ) and SES content ( 403 ) are multiplexed by content multiplexer ( 404 ). Multiplexed contents, Channel information ( 400 ) and service information ( 401 ) are converted as digital media signals by the digital media signal generator ( 405 ) and transmitted through the transmitter antenna ( 406 ). The digital media signal generator will follow any of the digital media standards. 
       FIG.  5    represents the digital media receiver system. The receiving antenna ( 500 ) will receive the RF signal. Signal Demodulator ( 501 ) will demodulate and channel decode the RF signal. Output of the Signal Demodulator will be channel information ( 503 ), service information ( 504 ) and multiplexed media content. Thus, the multiplexed media content is demultiplexed to different versions ( 505 ,  506 ,  507 ,  508 ) by the content demultiplexer ( 502 ). 
     The advantages of the present-day embodiment of our system are: Users can access any version of the same program, without having to skip or fast forward or other actions; Thus, the user can enjoy any program in the time duration that the user specifies and not the program. This benefits the broadcaster and the show producers as this means instead of producing different shows with varied duration, the same program can be viewed in different duration formats, thus reaching a wider audience and less pressure to make different time duration—based content catering to different audiences. When the special services are made available either as a premium or on-demand, then that creates additional revenue for the broadcaster. 
     While the foregoing written description of the invention enables one of ordinary skill to make and use what is considered presently to be the best mode thereof those of ordinary skill will understand and appreciate the existence of variations, combinations, and equivalents of the specific embodiment, method, and examples herein. The invention, should therefore not be limited by the above-described embodiment, method, and examples, but by all embodiments and methods within he scope of the invention as claimed.