.201223276 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種類比數位雙模電視機上盒及其控制 方法，尤指一種可將類比服務無差別的視為數位電視網路 整體一部分的數位電視機上盒及相關技術。 【先前技術】 目前國内電視節目的播放方式大致透過以下媒介：地.201223276 VI. Description of the Invention: [Technical Field] The present invention relates to an analog digital dual-mode television set-top box and a control method thereof, and more particularly to a digital television network as a whole that can make the analog service indistinguishable. Part of the digital TV set-top box and related technology. [Prior Art] At present, the domestic TV program is played through the following media:
面廣播（無線）、有線電視播放系統、衛星及寬頻通電視播 放系統；其中地面廣播一如各家無線電視台（台視、中視、 華視及民視等）’其透過無線發射方式傳送電視節目，供民 眾免費收視。又有線電視系統則採付費收視，其透過同轴 電纜將多數電視節目頻道傳送到客戶端，除了系統業者提 供的有線電視頻道外，根據現行有線電視法規定，有線電 視系統業者依法必須轉播無線電視台的節目，轉播方式是 在接收無線電視台的節目後’利用混頻方式經由同轴電瘦 傳送到客戶端，對於收視戶而言，不論是有線電視頻道（年 代緯來—立、中天、tVBS等）或無線電視頻道（台視、 :視、華視、民視）’其收視的方式都—樣，只須利用遙控 益或電視機上的選台按紐即可切換收視各個電視頻道，益 :由有線電視頻道切換到無線電視頻道，3戈由無線電視頻 2換到有線電視頻道，其操作方式並不因選擇的是有線 或無線電視頻道而有所差異。 又在數位電視方面， 上盒接收數位電視載波及 係由收視戶安裝機上盒，利用機 類比電視載波，以便傳送到與機 201223276 上盒連接的電視機上播放。儘管數位電視系統亦支援轉播 無線電視台節目，但數位電視由輸出、傳送，乃至接收方 式均為數位形式’因此機上盒為一數位化處理環境，而類 比電視是根據NTSC標準，其頻道與載波頻率為固定關係 ，且每個載波只載類比訊號，因此基本上並不受處理數位 訊號的機上盒支援，從而在數位電視與類比電視之間的切 換’實有不便之處。 既有數位電視機上盒或支援數位電視信號之電視機具 籲有才莫式切換開_，可在數位服務模式及類比服務模式之間 切換，當使用者選擇數位服務模式，隨即可使用選台器（遙 控器）選擇收視各個數位電視頻道，然而一旦使用者欲收視 類比電視節目時，並無法在數位服務模式下使用選台器直 接切換，必須利用前述模式切換開關先將機上盒切換至類 比服務模式，才能進一步選擇類比電視頻道，其不便之處 可想而知。 由上述可知，既有數位電視機上盒或支援數位電視信 籲號之電視機雖支援轉播類比電視，但收看類比電視時必須 先切換至特定的服務模式，方能進一步選擇收視的類比電 視頻道’依一般無線電視台或有線電視系統的收視習慣， 確有其不便之處，故有待進一步檢討，並謀求可行的解決 方案。 【發明内容】 因此，本發明主要目的在提供一種數位類比雙模機上 盒，其可無差別地將類比電視服務視為一特殊型態的數位 201223276 電視服務，從而令使用者在不改變選台習慣n 差異地選擇類比電視服務。 …、 包括為達成前述目的採取的主要技術手段係令前述機上盒 一微處理器，係作為一運算控制中枢； 器且=音解碼器’係受控於前述微處理器，該影音解碼 ’、一目以上的輸入端及-個以上的影音輸出端； 一解多m包括—串流輸人端及_輪出端 輸出端係與微處理器連接； 、 I解調器，具有—輸人端及—串流輸出端，其串流輸 出端係與解多工濾波器的串流輸入端連接； 、 載波y調諧器（Tune「）i以接收數位電視載波及類比電視 ιΓΓΓ開關，包括一共同端、一第-接點及-第 點传心 共同端係與調諧11的輸出端連接，第一接 器的輸入端連接；該共同端受微處理器控制切 換地與第-接點或第二接點連接； 2比影音處理電路’具有一類比影音輸入端、一類 接出端’該類比影音輸人端與第—切換開關的第二 :第二切換開關，包括一共同端、一第一接點及一第 笛3第#點係與類比影音處理電路的輸出端連接 ’ 4二接點係與影音解碼器的輸出端連接； 入端将Γ曰輸出電路’具有一輸入端與-組輸出端，其輸 與第二切換開關的共同端連接； 201223276 遙控訊號接收器，係與微處理器連接，以接收使用 者透過遙控器發射的遙控訊號； 一 S己憶體模組，係微處理器連接，供儲存相關資訊及 資料； 則述機上盒開機後，將完成一般數位機上盒的開機程 序，並由接收的數位電視載波中取得系統資訊（S丨，Service Information)，該系統資訊描述了不同的基礎流 (elementary streams)如何組成節目，並對電子節目表 • (EPG)提供内容，一般系統資訊是針對數位電視而言，因 而只對數位電視服務提供描述，而本發明係令系統資訊含 有對類比電視節目的描述，同樣的，類比電視節目的内容 將包含在電子節目表中。而前述系統資訊將被儲存在記怜 體模組中，當使用者透過遙控器送出遙控訊號時，微處理 器將根據系統資訊存取各個頻道及加值服務。 當使用者透過遙控器選擇收視數位電視頻道時，微處 理器將根據儲存的系統資訊，將前述第一切換開關的共同 瞻端切換與第一接點連接，第二切換開關的共同端則切換與 第二接點連接，並調整調譜器的頻率至正確的頻道，以接 枚指定頻道的數位電視載波。藉此，而由調言皆器送出的數 位電視載波經由解調器及解多工濾波器後送至微處理器， 再由微處理器送至影音紐 《“解碼益’經過影音解碼器解碼後通 :刀換開關、影音輸出電路送至電視機播放。 =使用者是透過遙控器切換選擇類比電視頻道時，微 處理器仍根據儲存的系统資 m山 既貝〇fL將月，〗述第一切換開關的丘 同舳切換與第二接點連接， 安弟一切換開關的共同端則切換 201223276 與第-接點連#，並調整調諧器的頻率至正麵頻道，以 接收指錢道的類比電視載波，而調諧器接收類比電 波後，即經第-切換開關送至類比影音處理電@，再由類 比影音處理電路經第二切換開關、影音輸出 機播放。 視 由上述可知，利用前述機上盒的特殊設計配合含有描 述類比電視服務的系統資m，使用者只須使用冑控器的頻 道切換鍵即可自由地數位電視與類比電視頻道之間切換， 有效解決既有機上盒必須先選擇類比服務模式，始能選擇 類比電視頻道的操作不便問題。 【實施方式】 關於本發明機上盒之一較佳實施例，請參閱圖彳所示 ，其包括一作為運算控制中樞的一微處理器1〇，並進—步 包括下列元件： 一影音解碼器（A/V Decoders)11，係受控於前述微處 理器1〇,該影音解碼器1彳具有一個以上的輸入端及一個 以上的影音輸出端； 解多工滤波器（DeMUX Filters)12，包括一串流輸入 端及一輸出端’其輸出端係與微處理器1〇連接； 一解調器（DeM〇D)13,具有一輸入端及一串流輸出端 ’其串流輸出端係與解多工濾波器12的串流輸入端連接 一調諧器（Tuner)14，係在微處理器1〇控制下調整其 頻率，以接收數位電視載波及類比電視載波； 201223276 一第一切換開關1.5 ’包括一共同端ι 50、一第一接點 151及一第二接點152，其中，共同端15〇係與調諧器 的輸出端連接，第一接點151係與解調器13的輸入端連 接；該共同端150受微處理器10控制切換地與第一接點 151或第二接點152連接； 一類比影音處理電路（Analog A/V Process Circuitry)Broadcast (wireless), cable TV broadcasting system, satellite and broadband TV broadcasting system; among them, terrestrial broadcasting is like TV stations (Taiwan, CCTV, China Vision and People's Video), which transmit TV programs through wireless transmission. For free viewing by the public. In addition, the cable television system adopts pay-per-view, which transmits most TV program channels to the client through coaxial cable. In addition to the cable channels provided by the system operators, according to the current cable television law, cable TV system operators must broadcast wireless TV stations according to law. The program is broadcasted after receiving the program of the wireless TV station. It is transmitted to the client via the coaxial power thin by the mixing method. For the viewer, whether it is a cable TV channel (the latitude, the vertical, the middle, the tVBS) Etc.) or radio video channels (Taiwan, Vision, China Vision, and People's Vision)'s methods of viewing are all the same. You only need to use the remote control or the channel selection button on the TV to switch the TV channels. Benefit: Switched from a cable channel to a radio channel, 3 Ge is switched from radio video 2 to cable channel, and its operation is not different depending on whether a cable or radio channel is selected. In the case of digital television, the box receives the digital TV carrier and installs the set-top box by the viewer, and uses the analog TV carrier to transmit to the TV connected to the box 201223276. Although digital TV systems also support the transmission of wireless TV programs, digital TVs are digital, output, transmission, and even receiving methods. Therefore, the set-top box is a digital processing environment, while the analog TV is based on the NTSC standard, and its channel and carrier. The frequency is fixed, and each carrier only carries the analog signal, so it is basically not supported by the set-top box that processes the digital signal, so the switching between the digital TV and the analog TV is inconvenient. The digital TV set-top box or the TV that supports digital TV signals can be switched between digital service mode and analog service mode. When the user selects the digital service mode, the channel can be used. The device (remote control) selects to view the digital TV channels. However, once the user wants to view the analog TV program, and cannot use the channel selector to switch directly in the digital service mode, the above mode switch must be used to switch the set-top box to The analog service mode can further select the analog TV channel, and the inconvenience can be imagined. It can be seen from the above that although a digital TV set-top box or a television supporting a digital television call number supports the broadcasting of analog TVs, it is necessary to switch to a specific service mode when viewing analog televisions in order to further select the analog television channels for viewing. 'According to the viewing habits of ordinary TV stations or cable TV systems, there are inconveniences, so further review is needed and a feasible solution is sought. SUMMARY OF THE INVENTION Accordingly, it is a primary object of the present invention to provide a digital analog dual-mode set-top box that can treat the analog television service as a special type of digital 201223276 television service without distinction, thereby allowing the user to not change the selection. Taiwan used to choose analog TV services differently. ..., including the main technical means for achieving the foregoing purpose, is to make the aforementioned set-top box-microprocessor as an arithmetic control center; and the =-decoder is controlled by the aforementioned microprocessor, the audio-visual decoding' More than one input end and more than one audio and video output end; one solution multi-m includes - streaming input end and _ round output end is connected with the microprocessor; , I demodulator, with - input The end and the stream output end, the stream output end is connected to the stream input end of the demultiplexing filter; the carrier y tuner (Tune ") to receive the digital TV carrier and the analog TV switch, including a The common terminal, a first-contact, and the -th-point common-key are connected to the output of the tuning 11, and the input of the first connector is connected; the common terminal is controlled by the microprocessor to switch to the first contact or The second contact is connected; 2 is more than the audio and video processing circuit 'having an analogy audio input terminal, a type of output terminal', the analog video input end and the second switch of the first switch: the second switch comprises a common end, a First contact and a first flute 3# Connected to the output of the analog video processing circuit '4 two contacts are connected to the output of the video decoder; the input terminal has an input and a set output, and the second switch Common-purpose connection; 201223276 Remote-controlled signal receiver is connected to the microprocessor to receive the remote control signal transmitted by the user through the remote controller; a S-recovery module is connected to the microprocessor for storing relevant information and information. After the machine is turned on, it will complete the boot process of the general digital set-top box, and obtain the system information (S丨, Service Information) from the received digital TV carrier. The system information describes the different elementary streams (elementary Streams) how to compose a program and provide content for an electronic program listing (EPG). The general system information is for digital television and thus provides a description only for digital television services, and the present invention provides system information for analog television programs. Description, in the same way, the content of the analog TV program will be included in the electronic program list. The aforementioned system information will be stored in the memory. In the module, when the user sends the remote control signal through the remote controller, the microprocessor will access each channel and the value-added service according to the system information. When the user selects the digital TV channel through the remote control, the microprocessor will store according to the The system information connects the common end switch of the first switch to the first contact, and the common end of the second switch switches to connect with the second contact, and adjusts the frequency of the spectrometer to the correct channel. The digital television carrier of the designated channel is connected, whereby the digital television carrier sent by the tuned device is sent to the microprocessor via the demodulator and the demultiplexing filter, and then sent to the audio and video button by the microprocessor. ""Decoding benefit" is decoded by the AV decoder: the knife change switch and the audio/video output circuit are sent to the TV for playback. = When the user switches to select the analog TV channel through the remote control, the microprocessor still connects to the second contact according to the stored system, and the second switch is switched. The common end of the switch is switched between 201223276 and the first contact point, and adjusts the frequency of the tuner to the front channel to receive the analog TV carrier of the money channel, and the tuner receives the analog wave, that is, after the tuner receives the analog wave The first-switching switch is sent to the analog video processing power@, and then the analog video processing circuit is played by the second switching switch and the video output machine. As can be seen from the above, by using the special design of the above-mentioned set-top box and the system resource containing the description analog TV service, the user can freely switch between the digital TV and the analog TV channel by using the channel switching button of the controller. Effectively solve the problem that both the upper box and the analog service mode must be selected first, and the inconvenience of the analog TV channel can be selected. [Embodiment] A preferred embodiment of the set-top box of the present invention, as shown in the figure, includes a microprocessor 1 as an arithmetic control center, and further includes the following components: a video decoder (A/V Decoders) 11, controlled by the aforementioned microprocessor 1 , the video decoder 1 彳 has more than one input and more than one audio and video output; DeMUX Filters 12, The utility model comprises a stream input terminal and an output terminal, wherein the output terminal is connected to the microprocessor 1 ;; a demodulator (DeM〇D) 13 has an input terminal and a stream output terminal 'the stream output terminal thereof The tuner input terminal of the demultiplexing filter 12 is connected to a tuner 14 to adjust its frequency under the control of the microprocessor 1 to receive the digital television carrier and the analog television carrier; 201223276 a first handover The switch 1.5' includes a common terminal ι 50, a first contact 151 and a second contact 152, wherein the common terminal 15 is connected to the output of the tuner, and the first contact 151 is connected to the demodulator 13 The input terminal is connected; the common terminal 150 is connected to the microprocessor 10 Switching system 151 connected to the first contact or the second contact 152; an analog audio processing circuit (Analog A / V Process Circuitry)
20，具有一類比影音輸入端、一類比影音輸出端，該類比 影2輸入端與第一切換開關15的第二接點152連接；於 本實施例中，該類比影音處理電$ 2〇主要為一濾波及調 頻電路’以提供濾波及調頻功能； 第一切換開關1 6，包括一共同端彳6〇、一第一接點 161及一第二接點162 ’該第一接點161係與類比影音處 =電路的輸出端連接，該第二接點162係與影音解碼 器11的輸出端連接； 具有一輸入 16的共同 一影音輸出電路（A/V output Circujts)17， 端與一組輸出端，其輸入端係與第二切換開關 端1 60連接； 姐模殂 设’伢儸存相 關資訊及資料，例如系統資訊（S丨）》 除此以外，前述微處理器10進一步、鱼 21及-訊息匯流排控制器22，該安全模：全模組 機23連接，本實施例中，該讀卡機23λ係與-讀卡 一叫讀卡機，用以利用智慧卡 訊息匯流排控制器22分別與一串列資 一又 板25及一遙控訊號接收器26連接。 、一控制面 201223276 前述機上盒在開機程序上與一般數位電視機上盒相同 ’係在驗證（check code integrity)後接收含有系統資訊 (SI)的數位電視載波，該系統資訊（s丨）包含對於數位電視服 務及類比電視服務的描述，並對電子節目表（EpG)提供内 容，與一般數位電視機上盒所接收系統資訊的不同處在於 :一般數位電視機上盒接收的系統資訊只包含數位電視服 務及加值服務的描述，而本發明所接收的系統資訊則進一 步含有對於類比電視節目的描述，當含有數位電視服務與 鲁類比電視服務的系統資訊被儲存在機上盒，在機上盒開機 後，微處理器1 0即會根據使用者的選台指令（透過遙控器 選台並發射遙控訊號）對照儲存的系統資訊，以存取數位電 視服務或類比電視服務。 因此根據前述可知，數位電視載波内含有符合標準之 系統資訊’並延伸數位電視服務的系統資訊，藉此在同一 系統資訊的架構下，將類比電視服務描述為特殊型態的數 位電視服務。例如 _ 延伸對數位電視網路的描述（例如DVB-S卜NMT)，增加 敛述網路内所提供類比電視服務的存取方法與參數。 延伸對每個電視服務之敘述（例如DVB-S卜SDT)，針 對類比電視服務增加頻道名稱、頻道簡介等相關資訊。 延伸對每個電視服務之電子節目表資訊（例如DVB-S卜 EIT) ’針對類比電視服務提供電子節目表（EpG)之資訊。 又前述同時含有數位類比服務描述的系統資訊將被储 存在記憶體模組1 8中，並可進行更新，其更新的時機係 如以下列： 201223276 1.當機上盒的調諧器調變至任一具有系統資訊之載波 時。 2·機上盒進入全螢幕選單。 3_不需要顯示任何電視影音時。 4_機上盒進入待機狀態時，微處理器10内部軟體驅 動機上盒硬體以調整相關設定，根據廣播訊號的狀態，取 得更新的系統資訊，並覆蓋記憶體模組18原有暫存的系 統資訊 • 關於在前述機上盒上選擇數位電視服務或類比電視服 務的方式詳如以下所述： 當微處理器1 0通過遙控訊號接收器26接到使用者透 過遙控器發出的切換頻道指令而選擇數位電視頻道時，即 根據開機後接收儲存或經過更新後的系統資訊，將前述第 一切換開關1 5的共同端1 50切換與第一接點1 51連接， 第二切換開關1 6的共同端1 60則切換與第二接點1 62連 接，並調整調譜器14的頻率至正確的頻道，以接收指定 鲁頻道的數位電視載波，該數位電視載波經過解調、濾波後 ，經微處理器10送至影音解碼器n解碼，經過解碼後的 影音訊號經由第二切換開關16、影音輸出電路17送至電 視機播放 又，微處理器10通過遙控訊號接收器26接到使用者20, having a type of audio and video input, a type of audio and video output, the analog 2 input is connected to the second switch 152 of the first switch 15; in this embodiment, the analog audio and video processing electricity is mainly 2 A filtering and frequency modulation circuit is provided to provide filtering and frequency modulation functions; the first switching switch 16 6 includes a common terminal 〇6〇, a first contact 161 and a second contact 162 ′ the first contact 161 Connected to the output of the analog video interface = circuit, the second contact 162 is connected to the output of the video decoder 11; a common audio and video output circuit (A/V output Circujts) 17 having an input 16 The output end of the group is connected to the second switching switch terminal 1 60; the sister module is configured to 'storage related information and information, such as system information (S丨). In addition, the microprocessor 10 further The fish 21 and the message bus controller 22, the security module: the full module machine 23 is connected. In this embodiment, the card reader 23λ and the card reader are called card readers, and are used to collect the smart card information. The row controller 22 is respectively associated with a string of resources and a board 25 And a remote control signal receiver 26 is connected. , a control plane 201223276 The above-mentioned set-top box is the same as the general digital TV set-top box in the boot procedure, and receives the digital television carrier containing the system information (SI) after the check code integrity, the system information (s丨) Contains descriptions of digital TV services and analog TV services, and provides content for electronic program guides (EpG). The difference between the information received by the general digital TV set and the system information received by the general digital TV set is: Contains a description of the digital television service and the value-added service, and the system information received by the present invention further contains a description of the analog television program, when the system information containing the digital television service and the Lu analog TV service is stored in the set-top box, After the set-top box is turned on, the microprocessor 10 will access the digital television service or the analog television service according to the user's channel selection command (selecting the remote control through the remote controller and transmitting the remote control signal) against the stored system information. Therefore, according to the foregoing, the digital television carrier contains system information conforming to the standard and extends the system information of the digital television service, thereby describing the analog television service as a special type of digital television service under the same system information architecture. For example, _ extends the description of the digital TV network (for example, DVB-S Bu NMT) to increase the access methods and parameters of the analog TV service provided in the network. Extend the description of each TV service (such as DVB-S Bu SDT), and increase the channel name, channel profile and other related information for analog TV services. Extend electronic program listing information (eg DVB-S EIT) for each TV service to provide information on electronic program listings (EpG) for analog TV services. The system information including the digital analog service description will be stored in the memory module 18 and can be updated. The timing of the update is as follows: 201223276 1. When the tuner of the set-top box is modulated to Any carrier with system information. 2. The set-top box enters the full screen menu. 3_Do not need to display any TV audio and video. 4_ When the set-top box enters the standby state, the internal software of the microprocessor 10 drives the upper box hardware to adjust the relevant settings, obtains updated system information according to the state of the broadcast signal, and overwrites the original temporary storage of the memory module 18. System Information • The method for selecting a digital TV service or analog TV service on the aforementioned set-top box is as follows: When the microprocessor 10 receives the switching channel sent by the user through the remote controller through the remote control signal receiver 26. When the digital television channel is selected by the command, the common terminal 1 50 of the first switch 15 is switched to be connected with the first contact 1 51 according to the received storage or updated system information after the power is turned on, and the second switch 1 is switched. The common terminal 1 60 of 6 switches to connect with the second contact 1 62, and adjusts the frequency of the spectrometer 14 to the correct channel to receive the digital television carrier of the designated Lu channel, and the digital television carrier is demodulated and filtered. And sent to the video decoder n for decoding by the microprocessor 10, and the decoded video signal is sent to the television through the second switch 16 and the audio output circuit 17. The processor 10 through the remote control signal receiver 26 to the user
同端1 60則切換與第一接點 同端160 點161連接， :刀換開關16的共 並調整調諧器14 10 201223276 的頻率至正確的頻道，以接收指定頻道的類比電視載波， 該調諧器14收到類比電視載波後即通過第-切換開關15 直接送至類比影音處理電路2Q ’再由類比影音處理電路 20經第二切換開關16、影音輸出電路17送至電視機播放 〇 过· 了知本發明的機上盒具有類比數位混合網路設 計，又配合含有描述類比電視服務的系統資訊，可將類比 電視服務定義為-特殊型態的數位電視服務，因此對於使 •用者而言，選擇數位電視頻道或類比數位頻道在操作上並 無差別，只須使用遙控器的切換頻道，即可在各個數位電 視頻道與類比電視頻道之間切換。 【圖式簡單說明】 圖1係本發明機上盒 一較佳實施例的方塊圖 【主要元件符號說明】 10微處理器 11 影音解碼器 12解調器 13 解多工濾波器 14調諧器 15 第一切換開關 150,160共同端 151 ，161第一接點 152,162第二接點 17 影音輸出電路 18記憶體模組 20 類比影音處理電路 21安全模組 22 訊息匯流排控制器 23讀卡機 24 串列資料埠 25控制面板 26 遙控訊號接收器The same end 1 60 is switched to be connected to the first contact 160 end 161, the switch of the switch 16 adjusts the frequency of the tuner 14 10 201223276 to the correct channel to receive the analog TV carrier of the designated channel, the tuning After receiving the analog television carrier, the device 14 directly sends it to the analog video processing circuit 2Q through the first-switch 15 and then sends it to the television through the analog switch 16 and the audio output circuit 17 through the analog video processing circuit 20. The set-top box of the present invention has an analog-digital hybrid network design, and with system information describing the analog television service, the analog television service can be defined as a special-type digital television service, and thus for the user In other words, there is no difference in operation between digital TV channels or analog digital channels. You can switch between digital TV channels and analog TV channels by simply switching channels of the remote control. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a preferred embodiment of the set-top box of the present invention. [Main component symbol description] 10 microprocessor 11 video decoder 12 demodulator 13 demultiplexing filter 14 tuner 15 First switch 150, 160 common terminal 151, 161 first contact 152, 162 second contact 17 audio output circuit 18 memory module 20 analog video processing circuit 21 security module 22 message bus controller 23 card reader 24 series Data 埠 25 control panel 26 remote control signal receiver