200816813 九、發明說明： 【發明所屬之技術領域】 一種產生廣播數位電視資料流之方法，直接整合於電視 頻道中，提供重要節目資訊，並以DVB-SI ( DVB-Service Information)格式內容，利用有限的描述子空間，記錄重要 節目資訊，並提供主動式的數位電視服務。 【先前技術】 數位影像廣播之數位電視標準是由1 993年成立於歐洲 數位電視組織所定義的數位電視標準。在該數位電視標準中 文字部分的標準包括了 DVB-ΜΗΡ多媒體家庭平台標準（ Multimedia Home Platform； ΜΗΡ ) 、DVB 字幕系統標準（200816813 IX. Description of the invention: [Technical field of invention] A method for generating a broadcast digital television data stream, directly integrated into a television channel, providing important program information, and utilizing DVB-SI (DVB-Service Information) format content Limited description subspace, recording important program information, and providing proactive digital TV services. [Prior Art] The digital television standard for digital video broadcasting is a digital television standard defined by the European Digital Television Organization established in 1993. The standards for the text portion of the digital TV standard include the DVB-ΜΗΡ Multimedia Home Platform ( ΜΗΡ ) and the DVB subtitle system standard (
Subtitling System ) 、 D V B · S I 服務資訊表（S e r v i c eSubtitling System ) , D V B · S I Service Information Sheet (S e r v i c e
Information Table ; SI)等。 大多數的數位廣播資料係以MPEG2傳輸資料流爲主要 的傳輸內容。當該傳輸資料流到達用戶端時，爲了能夠順利 解開這些訊息，則需要引導資訊來分辨各種訊息，因此便必 須要定義節目服務資訊表，節目服務資訊表在廣播送出前會 被加至傳輸資料流中，用戶端可利用解碼器或程式進行解碼 。而用以記錄節目基本屬性的表格，在DVB-SI標準中也已 有明確的規範。 DVB-SI標準中定義了許多表格，其中必要的四個表格 分別爲：網路資訊表（Network Information Table; NIT)、 服務敘述表（Service Description Table)、事件資訊表（Event Information Table)以及時間與日期表（Time and Date Table 200816813 )。而在DVB-SI標準所定義的表格中都有一 (Descriptor )的欄位，可用以註解節目的相 供用戶端額外的節目資訊以及輔助說明。 電子節目表（Electronic Program Guide ; 道業者或數位機上盒製造商所提供的程式，其 協助使用者更便利的瀏覽或搜尋其所希望觀賞 件資訊表 （EIT)所定義之欄位將可有助於電 獲取節目的資訊。目前市面上比較先進的數位 半也是利用讀取DVB-SI標準所定義的表格來 目資訊。 依據DVB-SI標準，每個表格中描述子的 需要而自訂。而透過讀取該描述子的內容，用 視系統中的電子節目表（EPG )程式可以得到 的節目資訊，從而建立更便利且更豐富的節目 升數位電視的附加價値。 本發明之描述子就是要補強事件資訊表白 子之有限的欄位空間內，紀錄更多的節目資舒 按，以往電視用戶端收看類比電視之節巨 須先查閱報紙上的節目表或逐台選擇是否觀 ，非常費時且沒有效率。而現今的有線電視雖 頻道提供即時節目表，利用表逐台介紹的方贫 的內容則爲該頻道數與該頻道的即時畫面，並 至多依序排列播放即時節目表，然而該即時 某一頻道上，用戶端必須切至該頻道始能得 個稱爲描述子 關資訊，並提 EPG)是由頻 主要之功bS爲 的節目，而事 子節目表程式 電視系統，多 取得必要的節 格式可視實際 戶端的數位電 許多非常詳細 選取環境，提 5內容，在描述 I ° 丨時，不外乎必 看哪一個節目 在其某一固定 :播放，而播放 依頻道數由少 目表係固定在 ]節目訊息。又 200816813 因播放方式爲依頻道數逐台播放，故使用者需花時間等待所 欲查詢的頻道出現，且其節目表僅內含頻道數與即時節目畫 面，用戶端所能獲得之資訊有限，更遑論讓用戶端以互動方 式選取或預約節目頻道。 而隨著數位電視的推行，其不但在視訊方面的品質大幅 提升外，在節目資料的提供部分也比以往類比電視豐富許多 ，功能也趨漸多元。特別是在節目資訊的提供上，數位電視 提供了所謂互動式資訊服務，除了可提供使用者更詳細的節 目資訊內容外，也能讓用戶端對於節目資訊的選取變得更加 便利。雖然這種節目資訊服務的提供已可稱爲互動式服務， 但仍需用戶端主動搜尋，節目資訊提供端則只是被動提供節 目資訊。一個理想的互動式數位電視服務，應該要做到主動 幫助用戶端進行喜好節目分析，自動推薦喜好節目，甚至提 供用戶端的收視習性分析，進而提供智慧型廣告等功能。 舉例而言，假設目前的時間爲晚上八點，當用戶端打開 電視機時，一套設計完整的電子節目表程式，應該要依據用 戶的喜好來推薦（在這個應用中，係該電子節目表程式平時 就會分析用戶的收視喜好，以得知用戶在這個時段最常看的 節目類型）。因此，當用戶端昨天八點所收看的是連續劇A 的第1 〇集，那麼，當用戶於今天晚上八點打開電視時，會 自動切換到連續劇A，從第1 1集開始收看。又或者用戶不 慎錯過今天的最新進度，則在第二天重播該連續劇A的第 1 1集時，數位電視系統會主動透過手機簡訊或電子郵件通知 用戶。如此，數位電視不再只是被動的提供資訊，而是主動 200816813 的將節目資訊送至用戶端。 此外，接續上面例子’當用戶習慣在晚上九點收看體育 節目，且最喜歡收看台灣職棒的比賽。當使用者從八點收看 連續劇直到九點節目結束，電子節目表程式則會自動推薦使 用者繼續收看體育類型的節目。而若有立即實況轉播的台灣 職棒比賽，那麼就將此節目推薦給用戶。若沒有，則推薦重 播的台灣職棒比賽。若完全沒有台灣職棒比賽。就推薦美國 或日本的職棒比賽，若完全沒有職棒比賽則改推薦其他類型 的體育節目。 因此，欲達到上述的服務模式，除了一套含有電子節目 表程式的數位電視系統外，更需要事先明確的將節目屬性包 括節目類型（連續劇或體育節目）、節目名稱（A )、集數、 播放時間、球賽分類以及實況或重播等予以定義，並且整合 入數位電視的電子節目表中，才可提供聰明且人性化的數位 電視服務。 然而依據目前DVB-SI標準所定義的表格之節目屬性仍 不夠詳細，並無法符合上述的需求。因此，利用DVB-SI標 準所定義表格之描述子可依據使用者自訂的規範，適度的延 伸並重新定義描述子的格式予內容，以便攜帶更多的節目資 訊是絕對必要的。 【發明內容】 有鑑於此，本發明者乃依據DVB-SI服務資訊表標準規 範，重新定義事件資訊表中描述子欄位格式，而使電子節目 表程式可以直接顯示更豐富的資訊，這些節目資訊也可與用 200816813 戶的喜好資料整合，使數位電視能夠提供更進階的服務。 本發明所提供之一種產生廣播數位電視資料流之方法 ’其包括特定節目資訊之事件資訊表，該事件資訊表具有至 少一描述子，該等描述子係包括以下至少一欄位：一描述子 標籤欄位，其係用於定義描述子的種類；一描述子長度欄位 ’用於定義描述子資料部分所使用的總字節數；以及至少一 _節目名稱與分類欄位。 因此，本發明係包括： 1 · 一種產生廣播數位電視資料流之方法，其包括於電視訊 號廣播時加入特定節目資訊之事件資訊表，而該事件資 訊表具有至少一主要描述子，該主要描述子係包括以下 至少一欄位： 描述子標籤欄位，係用於定義描述子的種類； 描述子長度欄位，係用於定義描述子資料部分所使用 的總字節數； 節目名稱欄位，係用於記錄節目的名稱； 節目分級欄位，係用於描述節目內容的分級； 劇情介紹欄位，係用於劇情介紹的網頁連結； 節目集數欄位，係用於記錄節目的集數； 節目狀態欄位，係用於描述節目的狀態； 電視台類型欄位，係用於描述電視台的類型； 人員及身分欄位，係用於描述節目內人員的身分及名 字； 副節目名稱欄位，係用於描述節目的副節目名稱； 提示欄位，係用於依據前述電視台類型予以決定所要 200816813 儲存的資訊；以及 劇照欄位，係用於記錄劇照的網頁連結； 並將該事件資訊表隨電視訊號予以廣播。 2·如前述第1項之方法，其中該節目分級欄位所表示之分 級係至少包含普遍級、保護級、輔導級與限制級。 3 .如前述第1項之方法，其中該節目狀態欄位所表示之狀 態至少包括首播、新節目、現場實況、完結篇、重播、 新節目且爲現場實況等以及至少一個保留狀態欄位。 4 ·如前述第3項之方法，其中該至少一個保留狀態欄位， 係可更依據節目狀態類型予以增加其狀態分類的定義。 5 ·如前述第1項之方法，其中該電視台類型所表示之類型 至少包括電影台、知識台、綜藝與音樂台、財經台、綜 合台、體育台、新聞台以及至少一保留類型欄位。 6·如前述第5項之方法，其中該至少一個保留類型欄位， 係可更依據電視台類型予以增加其類型的定義。 7·如前述第1項之方法，其中該人員及身分欄位所表示之 身分至少包括男演員、女演員、導演、主持人、來賓以 及至少一保留身分欄位。 8 ·如前述第7項之方法，其中該至少一保留身分欄位，係 可更依據身分類別予以增加類別的定義。 9·如前述第1項之方法，其中該提示欄位係以聯合方式依 據前述電視台欄位以決定所要儲存的資料。 1 〇·如前述第9項之方法，其中該提示欄位係至少使用於前 述電視台欄位爲電影台、運動台與財經台時。 1 1 ·如前述第1項之方法，其中該提示欄位依據電視台類型 欄位決定爲電影台時，係可包含上映日期級電影類型之 -10- 200816813 資訊，其中電影類型之資訊至少可分爲動作片、劇情片 、喜劇片、恐怖片、紀錄片、舞蹈片、浪漫片、小說片 及動畫卡通片。 12·如前述第1項之方法，其中該事件資訊表係符合DVB標 準或ATSC標準。 1 3 ·如前述第1項之方法，其係可直接整合於電視頻道中。 1 4 · 一種廣播數位電視訊號之系統，包括於所廣播的電視訊 號中加入特定節目資訊之事件資訊表，其中該事件資訊 表係至少包含如前述第1項至第1 3項任一項廣播數位電 視訊號之方法中所包含之描述子欄位。 1 5 · —種數位電視訊號接收管理系統，係與數位電視連接以 接收來自無線電台或有線電台廣播之數位電視訊號，而 該數位電視訊號係可使用如前述第1項至第1 3項任一項 產生廣播數位電視訊號之方法，且該系統更包括接收單 兀、解碼單元、選單操作管理單元，其中該接收單元係 用以接收該數位電視訊號；該解碼單元係用於處理前述 數位電視訊號中特定節目資訊之事件資訊表，並且解讀 利用事件資訊表所定義的描述子欄位；該選單操作管理 單元，其包括副數個執行不同工作之應用程式，其中包 括用以處理前述解碼單元所解讀之事件資訊表所定義的 描述子欄位並轉換爲電子節目表單之程式。 1 6.如前述第1 5項所請之數位電視訊號接收管理系統，其中 更可搭配記憶用戶端收視習慣之應用程式所產生之數據 ’與事件資訊表中所攜帶之資訊配合，以提供用戶端收 視節目的建議，並且可自動播放特定節目。 1 7 · —種數位電視接收器，其係具有如前述第1 5或1 6項之 -11- 200816813 數位電視訊號接收管理系統。 1 8 · —種數位電視訊號之資料流，其係包括如前述第1項至 第1 3項中任一項之方法中所包含之事件資訊表與其所定 義的描述子欄位。 1 9 · 一種廣播數位電視訊號用之事件資訊表，其係包含如前 述第1項至第1 3項中任~項之方法中所定義的描述子欄 位。 本發明依據所定義的描述子格式後，利用這些描述子來 記錄DVB-SI所遺漏的重要節目屬性，且以描述子欄位256 字節有限的儲存空間，讓電子節目表程式能獲取更完整的節 目資訊，提高系統便利性。更使電子節目表程式可以直接顯 示更豐富的資訊，這些節目資訊亦可以與用戶的喜好資料整 合，提供更進階的數位電視服務。 【實施方式】 爲使該所屬技術領域中具有通常知識者能更進一步瞭 解本發明之技術特徵及其特性，兹配合具體實施例、圖式與 表格詳加說明，當更容易瞭解本發明之目的、技術內容、特 點及其所達成之功效。 在DVB-SI服務資訊表標準規範中，每個描述子欄位的 儲存空間一共只有256字節（bytes)，爲了提高這個欄位的 的使用效率，則必須分析各種節目屬性的重要程度，只要把 重要的資訊放到事件資訊表之描述子欄位內。首先，將頻道 分爲包括知識台、綜藝與音樂台、財經台、綜合台、體育台 、新聞台和電影台等七大類。隨後，將各類頻道節目相關資 訊統計各種屬性出現的頻率，將較常出現的那些屬性歸類爲 -12· 200816813Information Table; SI), etc. Most digital broadcast data is based on the MPEG2 transport stream. When the transmission data stream arrives at the user end, in order to successfully unpack these messages, it is necessary to guide the information to distinguish various messages, so it is necessary to define a program service information table, and the program service information table is added to the transmission before the broadcast is sent. In the data stream, the client can decode using a decoder or a program. The table used to record the basic attributes of the program has also been clearly defined in the DVB-SI standard. Many tables are defined in the DVB-SI standard. The four necessary forms are: Network Information Table (NIT), Service Description Table, Event Information Table, and time. And date table (Time and Date Table 200816813). In the table defined by the DVB-SI standard, there is a (Descriptor) field, which can be used to annotate the program's additional program information and auxiliary instructions for the user. Electronic Program Guide; a program provided by the manufacturer or digital set-top box manufacturer to assist users in more convenient browsing or searching for the fields defined by the desired information sheet (EIT). Helps to obtain information about the program. Currently, the more advanced digital half of the market is also based on the table defined by the DVB-SI standard. According to the DVB-SI standard, the requirements of each table are customized. By reading the contents of the descriptor, the program information that can be obtained by using the electronic program table (EPG) program in the system, thereby establishing a more convenient and richer program, the additional price of the digital TV. The description of the present invention is In order to reinforce the limited information space of the event information table, record more programs, and in the past, the TV user watched the analog TV section. It is necessary to check the program list in the newspaper or choose whether to watch it one by one. It is very time consuming. And it’s not efficient. Today’s cable TV channels provide instant program listings, and the content of the poorly-used content introduced by the table is the number of channels. The real-time picture of the channel, and at most, the real-time program list is arranged in sequence. However, on the instant of a certain channel, the user must cut the channel to obtain a message called descriptive information, and mention EPG) is mainly by frequency. The program of the bS is the program, and the TV program of the program of the program, the necessary section format can be seen from the actual number of digits of the actual terminal. Many very detailed selection environments, mentioning 5 content, when describing I ° ,, it must be seen A program is fixed at one of its: play, and the number of channels played by the number of channels is fixed by the program message. 200816813 Because the playing mode is played by channel according to the number of channels, the user needs to spend time waiting for the channel to be queried, and the program list only contains the number of channels and the instant program screen, and the information available to the user terminal is limited. Let's also let the user select or reserve the program channel interactively. With the implementation of digital TV, not only has the quality of video services been greatly improved, but also the provision of program materials is much richer than that of analog TVs in the past, and the functions are becoming more diverse. Especially in the provision of program information, digital TV provides a so-called interactive information service. In addition to providing users with more detailed program information content, it also makes it easier for the user to select program information. Although the provision of such a program information service can be called an interactive service, the user terminal is still required to actively search, and the program information provider only passively provides program information. An ideal interactive digital TV service should actively help the user to analyze the favorite program, automatically recommend the favorite program, and even provide the user's viewing habit analysis, and then provide smart advertising and other functions. For example, suppose the current time is 8:00 pm. When the user turns on the TV, a fully designed electronic program list program should be recommended according to the user's preference. (In this application, the electronic program list is The program usually analyzes the user's viewing preferences to know the type of program that the user most often watches during this time. Therefore, when the user viewed the first episode of series A at eight o'clock yesterday, when the user turns on the TV at 8 o'clock this evening, it will automatically switch to series A and start watching from episode 11. Or if the user accidentally misses the latest progress today, the digital TV system will actively notify the user via mobile phone newsletter or email when the first episode of the series A is replayed the next day. In this way, digital TV is no longer just passive information, but the initiative 200816813 to send program information to the user. In addition, continue with the above example 'when the user is used to watching sports at 9:00 in the evening, and most like to watch the Taiwan professional baseball game. When the user watches the series from eight o'clock until the end of the nine o'clock program, the electronic program listing program automatically recommends the user to continue watching the sports type of the program. If there is a live baseball game in Taiwan, then the program will be recommended to the user. If not, it is recommended to replay the Taiwan professional baseball game. If there is no Taiwan professional baseball game at all. It is recommended to play baseball games in the United States or Japan. If there is no professional baseball game, it will recommend other types of sports. Therefore, in order to achieve the above service mode, in addition to a digital television system containing an electronic program table program, it is necessary to explicitly specify the program attributes including the program type (sequence or sports program), program name (A), number of episodes, Play time, ball game classification, live or replay, etc. are defined and integrated into the digital TV program of the digital TV to provide smart and user-friendly digital TV services. However, the program attributes of the tables defined by the current DVB-SI standard are still not detailed enough to meet the above requirements. Therefore, the descriptors of the tables defined by the DVB-SI standard can be appropriately extended and redefined in the format of the descriptors according to the user-defined specifications, so that it is absolutely necessary to carry more program information. SUMMARY OF THE INVENTION In view of this, the inventors have redefined the subfield format described in the event information table according to the standard specification of the DVB-SI service information table, so that the electronic program table program can directly display richer information. The information can also be integrated with the favorite data of 200816813, enabling digital TV to provide more advanced services. The present invention provides a method for generating a broadcast digital television data stream, which includes an event information table of specific program information, the event information table having at least one descriptor, the descriptors including at least one of the following fields: a descriptor A tag field, which is used to define the type of descriptor; a descriptor subfield is used to define the total number of bytes used to describe the subdata portion; and at least one program name and category field. Accordingly, the present invention comprises: 1. A method of generating a broadcast digital television data stream, comprising an event information table for adding a specific program information when the television signal is broadcast, and the event information table has at least one main descriptor, the main description The child system includes at least one of the following fields: a description sub-label field, which is used to define the type of the descriptor; a description sub-length field, which is used to define the total number of bytes used to describe the sub-data portion; the program name field Is used to record the name of the program; the program rating field is used to describe the classification of the program content; the story introduction field is used for the webpage link of the story introduction; the program number field is used to record the program collection. The program status field is used to describe the status of the program; the TV station type field is used to describe the type of the TV station; the personnel and identity fields are used to describe the identity and name of the person in the program; Bit, which is used to describe the name of the sub-program of the program; the prompt field is used to determine the 200816813 storage according to the type of the aforementioned TV station. Information; and stills field, the Department for recording stills web link; and will be broadcasting the event information table with the television signal. 2. The method of item 1, wherein the hierarchical level of the program includes at least a universal level, a protection level, a coaching level, and a restriction level. 3. The method of clause 1, wherein the status status of the program status field includes at least a first broadcast, a new program, a live live, a finished story, a replay, a new program, and a live live event, and at least one reserved status field. 4. The method of clause 3, wherein the at least one reserved status field further increases the definition of its status classification based on the program status type. 5. The method of item 1, wherein the type of the television station comprises at least a movie station, a knowledge station, a variety and music station, a financial platform, a comprehensive station, a sports station, a news station, and at least one reserved type field. 6. The method of item 5 above, wherein the at least one reserved type field is further defined by a type of television station. 7. The method of item 1, wherein the person and the identity field represent at least an actor, an actress, a director, a host, a guest, and at least one reserved identity field. 8. The method of item 7, wherein the at least one retaining the identity field further increases the definition of the category based on the identity category. 9. The method of clause 1, wherein the prompt field is based on the television station field in a joint manner to determine the data to be stored. The method of item 9, wherein the prompt field is used at least when the television station field is a movie station, a sports station, and a financial station. 1 1 The method of item 1, wherein the prompt field is determined to be a movie station according to the type of the television station type, and the information may be included in the video of the date type movie, wherein the information of the movie type is at least separable. For action films, dramas, comedies, horror films, documentaries, dance films, romantic films, novels and animated cartoons. 12. The method of item 1, wherein the event information form is compliant with the DVB standard or the ATSC standard. 1 3 · The method of item 1 above can be directly integrated into a television channel. 1 4 · A system for broadcasting digital television signals, comprising an event information table for adding specific program information to a broadcast television signal, wherein the event information table includes at least one of the foregoing items 1 to 13 The description subfield included in the method of digital television signal. 1 5 · A digital television signal receiving management system is connected to a digital television to receive digital television signals broadcast from radio stations or cable stations, and the digital television signals can be used as described in items 1 to 1 above. A method for generating a broadcast digital television signal, and the system further comprises a receiving unit, a decoding unit, and a menu operation management unit, wherein the receiving unit is configured to receive the digital television signal; the decoding unit is configured to process the digital television An event information table of the specific program information in the signal, and interpreting the description subfield defined by the event information table; the menu operation management unit includes a plurality of applications for performing different tasks, including processing the foregoing decoding unit The program field defined by the interpreted event information table is converted into a program of an electronic program form. 1 6. The digital TV signal receiving management system as requested in item 15 above, wherein the data generated by the application that memorizes the user's viewing habits is matched with the information carried in the event information table to provide the user. The program is recommended to view the program, and the specific program can be automatically played. 1 7 - A digital television receiver having a digital television signal reception management system as described in the above-mentioned Item 15 or 16 -11-200816813. 1 8 - A data stream of a digital television signal, comprising the event information table contained in the method of any one of the foregoing items 1 to 13 and a description subfield defined therein. 1 9 · An event information table for broadcasting a digital television signal, which includes a description subfield defined in the method of any of the items 1 to 13 above. After the invention describes the sub-format according to the definition, the descriptors are used to record the important program attributes missed by the DVB-SI, and the electronic program table program can be more completely obtained by describing the limited storage space of the sub-field of 256 bytes. Program information to improve system convenience. It also enables the electronic program listing program to display more informative information directly. The program information can also be integrated with the user's favorite information to provide more advanced digital TV services. [Embodiment] In order to further understand the technical features and characteristics of the present invention, those skilled in the art will be described in detail with reference to specific embodiments, drawings and tables, and the purpose of the present invention is more easily understood. , technical content, characteristics and the effects achieved. In the standard specification of the DVB-SI service information table, the storage space of each sub-field is only 256 bytes. In order to improve the efficiency of using this field, it is necessary to analyze the importance of various program attributes, as long as Put important information in the description subfield of the event information form. First of all, the channel is divided into seven categories including knowledge base, variety and music station, financial station, comprehensive station, sports station, news station and movie station. Subsequently, the frequency of various attributes related to various channel programs is counted, and the more frequently occurring attributes are classified as -12· 200816813
重要的節目屬性並放入描述子欄位中。在歸納出重要的屬性 並且去除原本在事件資訊表（Event Information Table; EIT )中原本就已包含的在內的部分之後，便開始進行描述子欄 位的設計。 而在多媒體家庭平台標準（Multimedia Home Platform ;ΜΗΡ )中，描述子間係用標籤値（Tag Value )作爲辨識資 訊（Identifier)，而標籤値爲0x80〜OxFE係爲使用者定義 的描述子區塊。因此，在本發明之一較佳實施例當中，可選 擇性的將描述子的標籤値設爲0x80,而將描述子的名稱訂爲 『Main Descriptor (主要描述子）』，並且利用節目資訊表 的描述子欄位來存放這些相關的定義。 第1圖係爲表示主要描述子格式中各欄位的位元（bits )分配的情形，其中statement (提示）欄位部分係採取聯 合（union)的結構，也就是會依據電視台類型（genre)來 決定statement欄位裡面儲存的是哪些資訊。以下將詳細敘 述各欄位的欄位大小、先後順序、特性與定義，其中辯識資 訊欄位之値係可選自於a. bslbf，也就是Bit String，Left Bit First表示此欄的値必須要逐位元來處理；b· uimsbf， Unsigned Integer Most Significant Bit First 表示此欄的値 係以字節爲單位來處理（請參照第2圖）： 1. descriptor_tag:描述子標籤欄位，這個欄位長爲8 位元，其係用於定義描述子的種類，在此可以固定 爲 0 X 8 0 〇 2. descriptor_length:描述子長度欄位，這個欄位長爲 200816813 8位元，其係用於說明該描述子資料部分所使用的 總字節（bytes )數，在此可以固定爲〇〜〇xFF。 3· program-name :節目名稱欄位，這個欄位長爲ι44 位元，其係用於記錄節目的名稱，其可容納1 8個英 文字或9個中文字。這個欄位之所以會訂爲丨44位 元，係因爲目前所搜尋到之節目名稱中，有將近9 5 % 係只需要用到這些位元數。 4· rating :節目分級欄位，這個欄位長爲52〇位元，其 係用於描述節目內容的分級，包含普遍級、保護級 、輔導級與限制級等4級（其格式定義請參見第3 圖）。 5· story :劇情介紹欄位，這個欄位長爲52〇位元，其 係用於劇情介紹的網頁連結（URL )。若URL全爲 英文’則最多可以有65個字。這個欄位之所以會訂 爲5 20位元，係因爲目前所搜尋到之劇情介紹URL ’有將近9 5 %係只需要用到這些位元數。 6. volume :節目集數欄位，這個欄位長爲11位元，其 係作爲記錄節目的集數，可能値爲〇〜2047。 7· state :節目狀態欄位，這個欄位長爲3位元，其係 用於描述節目的狀態，包括首播、新節目、現場實 況、完結篇、重播與新節目且爲現場實況等6種狀 態’並有無及保留格式，以利將來更新狀態所需（ 其格式定義請參見第4圖）。 8· genre ··電視台類型攔位，這個欄位長爲3位元，其 -14- 200816813 係用於描述電視台屬於哪種類型，包括電影台、知 識台、綜藝與音樂台、財經台、綜合台、體育台和 新聞台等七大類，並保留一格式作爲往後新增電視 台類型之用（其格式定義請參見第5圖）。 9· actor ·人貝身分及名稱欄位，這個欄位長爲5 75位 兀其係用於描述節目內人員的身分及名字，也就 疋演貝身份。其可記錄5個人員，每個人員名字前 面都有3位元用於描述此人員的身分爲何，其可分 爲男演貝、女演員、導演、主持人與來賓等身分， 並保留一格式作爲保留之用。而每個人名的長度可 以爲7個中文字或是14個英文字（其欄位格式請參 照第6圖；描述身分的內容格式請參照第7圖）。 10. subtitle :副節目名稱欄位，這個欄位長爲n2位元 ，其係用於描述節目的副節目名稱，其可記錄1 4個 英文字或7個中文字。 11. statement:提不欄位，這個欄位的長度爲64位元（ S靑參照第8圖），其係以聯合（u n i ο η )的方式來儲 存資料。也就是本欄位會根據電視台類型（genre ) 欄位來決定此欄位所要儲存的資訊，而這個欄位只 有在電視台類型爲電影台、運動台與財經台時才使 用（亦即當電視台類型爲其他類型時，該statement 欄位將不會被使用），其格式列舉如下： (A )電影台（其欄位格式請參照第9圖）： statement欄位在電影台的這個部分，是用來 200816813 描述此部電影的上映日期以及電影類型，總 共28位元。前面的19位元係用來記載上映 曰期，其格式和前面date欄位是一樣的。而 後面9位元係用來記載電影類型，每部影片 可以包含一種以上的電影類型，其內容格式 請參照第9圖。 (B ) 運動台：statement欄位在運動台共需要64 位元。在聯合方式的各種類型中，其所需要 的位元數最多。而運動台用這個欄位來描述 節目的運動項目，較佳係以中文來描述，可 使用 4個中文字（在此欄位長度係參考 ESPN STAR中文網節目表，其中體育項目共 分成29項，其中體育項目名稱最長爲有4個 中文字，需要64位元）。 (C ) 財經台：statement欄位在財經台僅需使用1 位元，表示此節目內容是否爲財經類型即可 ，此乃因爲財經台所播放的節目也可能是屬 於非財經類的。 1 2 . st i 11 :劇照欄位，這個欄位的長度爲5 2 0位元，其 係用於記錄劇照的網頁URL。 因此，利用本發明之上述描述子所定義之欄位與格式後 ，先利用用戶端之數位電視接收器；機上盒（Set-Top Box ;STB )記錄平時用戶的觀賞電視習慣，產生收視習慣表。 而這個需求可以透過事件資訊表的固有之start_time欄位、 -16- 200816813 [與 genre 視機時， 戶喜好的 括以下步 並檢查用 綜藝節目 資訊表的 正播放之 ，則電子 綜藝節目 ，並據此 透過主要 主持的其 棒球比賽 >。當電子 述子爲『 duration欄位以及主要描述子之program— name欄 欄位即可得知。 所以，本發明之一較佳實施例爲當用戶打開電 電子節目表程式即依據目前的日期與時間，判斷用 節目類型。也就是當用戶希望收看綜藝節目時，包 驟： (1 )電子節目表程式先查詢目前的時間， 戶收視習慣表，判斷用戶應該會想看 〇 (2 )電子節目表程式檢閱所有頻道之事件 主要描述子，找出『genre = 010』的現 節目。 (3 )若目前有許多頻道都在播放綜藝節目 節目表程式會檢閱用戶昨天所收看的 之program_name欄位與volume欄位 推薦用戶收看該節目的下一集。 (4 )假若找不到該綜藝節目的下一集，則 描述子的actor欄位，找出該主持人所 他綜藝節目，並推薦給用戶觀賞。 本發明之另一較佳實施例爲當用戶喜歡觀看 時（主要描述子內爲 genre=101，statement:棒球： 節目表程式發現某個節目資訊表內的主要描： genre = 101，statement。棒球且 state = 010(live)』時，便可主 動通知用戶現在正有一場棒球比賽在現場實況轉播中，並推 200816813 薦用戶觀看。 藉由本發明所定義之主要描述子的各個欄位，透過電子 節目表程式與主要描述子的整合機制，使得數位電視不再只 是被動的接受用戶的操作來提供節目資訊，而是以主動的方 式提供用戶更爲詳盡且便利的節目資訊以及選台服務，更不 會錯失任何節目。特別是以目前有線電視將近1 00台以上的 情況，一但將來全部轉換爲數位電視頻道，利用本發明所定 義的描述子之各欄位，除了大幅強化電子節目表的功能外， 更可以讓用戶快速的找到自己想要觀看的節目，而非逐台的 瀏覽，節省用戶搜尋時間，進而加快數位電視的普及。 惟以上所述者，僅爲本發明之較佳實施例，當無法據此 限定本發明之實施範圍，而所屬技術領域中具有通常知識者 依據本發明申請專利範圍及發明說明書內容所作之修飾與 變化，皆應屬於本發明專利涵蓋之範圍。 【圖式簡單說明】 桌1圖主要描述子格式。 第2圖主要描述子格式的語法。 第3圖節目分級格式。 第4圖節目狀態格式。 第5圖節目類型格式。 第6圖人員身分及名稱欄位。 第7圖演員資訊格式。 第8圖提示欄位。 第9圖電影類型格式。 -18- 200816813 【主要元件符號說明 Μ 〇 j\\\Important program attributes are placed in the Description subfield. After summarizing the important attributes and removing the parts that were originally included in the Event Information Table (EIT), the description of the subfields begins. In the Multimedia Home Platform (ΜΗΡ), the description of the tag is used as the identification information (Identifier), and the tag 値 is 0x80~OxFE is the user-defined description sub-block. . Therefore, in a preferred embodiment of the present invention, the label of the descriptor can be selectively set to 0x80, and the name of the descriptor is set to "Main Descriptor", and the program information table is utilized. The description subfield is used to store these related definitions. Figure 1 is a diagram showing the allocation of bits in each field in the sub-format, where the statement field is based on a union structure, that is, depending on the type of station (genre). To determine what information is stored in the statement field. The field size, sequence, characteristics and definitions of each field are described in detail below. The identification information field can be selected from a. bslbf, which is Bit String, and Left Bit First indicates that the column must be To be processed bit by bit; b· uimsbf, Unsigned Integer Most Significant Bit First indicates that the column of this column is processed in bytes (see Figure 2): 1. descriptor_tag: describes the subtag field, this column The bit length is 8 bits, which is used to define the type of the descriptor. It can be fixed to 0 X 8 0 〇 2. descriptor_length: Describe the sub-length field. This field is 200816813 8 bits long. To illustrate the total number of bytes used in the sub-data section of the description, it can be fixed here as 〇~〇xFF. 3· program-name : program name field, this field is ι44 bit long, which is used to record the name of the program, which can accommodate 1 8 English characters or 9 Chinese characters. The reason for this field is 丨44, because nearly 95% of the names of the programs currently searched for only need to use these bits. 4· rating : program rating field, this field is 52 inches long, which is used to describe the classification of program content, including general level, protection level, coaching level and limit level, etc. (for the format definition, please refer to Figure 3). 5· story : The story introduction field, this field is 52 inches long, which is used for the web link (URL) of the story introduction. If the URL is all in English, then there can be up to 65 words. The reason why this field is set to 5 20 bits is because only about 95% of the plot URLs currently searched for are only needed. 6. volume: The number of programs in the program. This field is 11 bits long. It is used as the number of records for the program. It may be 〇~2047. 7· state : program status field, this field is 3 bits long, which is used to describe the status of the program, including the first broadcast, new program, live live, finished, replay and new program, and is live on the scene. The status 'has no or reserved format for future update status (see Figure 4 for the format definition). 8·genre ··TV station type block, this field is 3 bits long, and its -14-200816813 is used to describe which type of TV station belongs to, including movie station, knowledge station, variety and music station, financial platform, comprehensive There are seven categories, including Taiwan, Sports, and News, and a format is reserved for the addition of new TV stations (see Figure 5 for the format definition). 9· actor · Person's identity and name field, this field is 5 75 long. It is used to describe the identity and name of the person in the program. It can record 5 people. Each person's name has 3 digits in front of it to describe the identity of the person. It can be divided into male actors, actresses, directors, hosts and guests, and retains a format. Used as a reservation. Each person's name can be 7 Chinese characters or 14 English words (for the format of the field, please refer to Figure 6; for the content format of the identity, please refer to Figure 7). 10. subtitle: Sub-program name field, this field is n2 bits long, which is used to describe the sub-program name of the program, which can record 14 English words or 7 Chinese characters. 11. statement: raises the field. The length of this field is 64 bits (S靑 refers to Figure 8), which stores the data in the form of union (u n i ο η ). That is, this field will determine the information to be stored in this field according to the type of TV station (genre) field, and this field is only used when the TV station type is movie station, sports station and financial station (that is, when the TV station type For other types, the statement field will not be used. The format is as follows: (A) Movie station (for the format of the field, please refer to Figure 9): The statement field is used in this part of the movie station. Come to 200816813 to describe the release date of this movie and the type of movie, a total of 28 bits. The previous 19-bit system is used to record the release period, and its format is the same as the previous date field. The latter 9-bit system is used to record the movie type. Each movie can contain more than one movie type. For the content format, please refer to Figure 9. (B) Sports station: The statement field requires a total of 64 bits on the sports station. Among the various types of federation methods, the number of bits required is the largest. The sports station uses this field to describe the sports of the program. It is better to describe it in Chinese. Four Chinese characters can be used. In this field, the ESPN STAR Chinese website program list is used. The sports items are divided into 29 items. The name of the sports item is up to 4 Chinese characters, which requires 64 bits). (C) Finance and Economics: The statement field only needs to use 1 bit in the financial station to indicate whether the content of the program is a financial type. This is because the program broadcasted by the financial platform may also belong to the non-financial category. 1 2 . st i 11 : Stills field, the length of this field is 520 bits, which is the URL of the web page used to record the stills. Therefore, after using the fields and formats defined by the above description of the present invention, the digital TV receiver of the user terminal is first used; the set-top box (STB) records the usual viewing habits of the user, and the viewing habit is generated. table. This requirement can be obtained through the intrinsic start_time field of the event information table, -16-200816813 [When the genre camera is used, the user's preferences include the following steps and check that the variety show information sheet is being played, then the electronic variety show, and According to this, through its main hosted baseball game >. When the electronic statement is "the duration field and the program-name column of the main descriptor, you can know it. Therefore, a preferred embodiment of the present invention determines the type of program to be used when the user opens the electronic program listing program based on the current date and time. That is, when the user wants to watch the variety show, the package is as follows: (1) The electronic program list program first queries the current time, and the user views the custom table to determine whether the user should want to watch (2) the electronic program list program to review all channels. The main descriptor is to find out the current program "genre = 010". (3) If there are many channels currently playing variety shows, the program list program will review the program_name field and volume field that the user watched yesterday. The user is recommended to watch the next episode of the program. (4) If the next episode of the variety show cannot be found, describe the actor field of the variety, find out the variety show of the host, and recommend it to the user. Another preferred embodiment of the present invention is when the user likes to watch (the main description is genre=101, statement: baseball: the program listing program finds the main description in a program information table: genre = 101, statement. baseball And state = 010 (live), you can take the initiative to inform the user that there is a baseball game in live broadcast, and push the 200816813 recommended users to watch. Through the various fields defined by the main descriptor of the invention, through the electronic The integration mechanism of the program table program and the main descriptor makes the digital TV no longer passively accept the user's operation to provide program information, but provides the user with more detailed and convenient program information and channel selection service in an active manner. No program will be missed. Especially in the case of nearly 100 TV sets, once converted into digital TV channels in the future, the fields of the descriptors defined by the present invention are used, in addition to greatly enhancing the electronic program schedule. In addition to functions, users can quickly find the programs they want to watch, instead of browsing one by one, saving The search time of the user is used to speed up the popularization of the digital television. However, the above description is only a preferred embodiment of the present invention, and the scope of implementation of the present invention cannot be limited thereto, and those having ordinary knowledge in the technical field according to the present invention Modifications and variations of the scope of the patent application and the contents of the invention are intended to fall within the scope of the invention. [Simplified illustration] Table 1 mainly describes the sub-format. Figure 2 mainly describes the syntax of the sub-format. Program grading format. Fig. 4 Program status format. Fig. 5 program type format. Fig. 6 Person identity and name field. Fig. 7 actor information format. Fig. 8 prompt field. Fig. 9 movie type format. 18- 200816813 [Main component symbol description Μ 〇j\\\