TW201238332A - Broadcasting method, device and system for multimedia - Google Patents

Abstract

The present invention relates to a broadcasting method, device, and system for multimedia. The broadcasting system for multimedia includes a multimedia broadcasting device and a multimedia providing device. The broadcasting method for multimedia comprises steps of: broadcasting a multimedia content transmitted by a first signal transmission approach; and broadcasting the multimedia content by a second signal transmission approach when signal quality of the first signal transmission approach becomes worse and meets a first predetermined condition, wherein the size of the multimedia content transmitted by the first signal transmission approach is greater than that transmitted by the second signal transmission approach.

Description

201238332 VI. Description of the Invention: [Technical Field] The present invention is a multimedia playing method, apparatus and system, and more particularly, a multimedia playing method, apparatus and system for playing according to the signal quality of a signal transmission mode. [Prior Art] With the development of technology, the size of multimedia playback devices has gradually become more sophisticated due to the size of suitable and fixed applications. For example, many digital TV broadcasters and mobile phones are available today. Used to play multimedia programs. Despite the development of the multimedia program's broadcast device in a portable manner, the user can conveniently view the multimedia program in different places, but the existing multimedia player has a lack of the program play application in action. In other words, when the user receives the digital TV signal through the antenna, the multimedia playback device may not receive the multimedia playback signal due to factors such as the user's own location movement or changes in the environment caused by weather changes. In the case of poor signal reception, the video or sound played by the multimedia player will be intermittent, which will make the user feel that the face is not smooth or miss the key face. SUMMARY OF THE INVENTION 4 201238332 The present invention is a multimedia playing method, which comprises transmitting a multimedia signal in a first signal transmission mode: the signal quality of the broadcast transmission mode is deteriorated and conforms to and broadcasts at the time. ; ^n number transmission mode is transmitted in the evening m meal 2; multimedia content is transmitted by the first-signal transmission method, and the amount of data transmitted by the second signal transmission mode is the same as the above concept, The multimedia device of the invention further comprises the following steps: when the first signal transmission mode, wherein = conforms to a second preset condition, the multimedia content is better transmitted. According to the above concept, the playing method 3 of the present invention receives the multimedia content transmitted in the first signal transmission mode and the second more inclusive mode. A 4 唬 transmission 2 according to the above-mentioned counties, the present riding (4) further steps · According to a information feature, the transport method and the second signal transmission mode of the multi-number transmission of the invention - Fang _ - kind of multimedia _ smart, content. As soon as the reception is 7L, it is received by a first-letter-through device, which includes: the transmission of the multimedia content, the content of the multimedia content, and the transmission of the data when the second signal is transmitted by the first signal transmission mode. The amount of data when the content is transmitted in the form is A; and the message is transmitted by the first signal transmitting party 2, electrically connected to the body of the connector, and transmitted in the first signal. When the method transmits the multimedia to the first preset condition, the playback conforms to the media content by the quality difference of the second transmission. According to the above concept, the multi-media intent of the present invention is _ eight 201238332, the element is in the first-signal transmission mode, and when the first pre-condition is sent, the first is played. * The quality is good and the multimedia content is included. According to the above concept, the multimedia according to the present invention is identified according to the information feature to transmit the enemy device, and the multimedia transmission mode and the second mode are transmitted by the signal transmission mode. A further aspect of the present invention is a multi-multimedia providing device that uses a system to include: a two-signal transmission method to transmit a multimedia content, and a delivery mode and a first signal transmission mode to transmit a larger amount of data. Content=The multimedia providing device is played by:], the multimedia content transmitted by the signal type, the multimedia content transmitted by the communication method of the first preset strip sending mode is deteriorated . According to the above concept, the multimedia playback device of the present invention is used in the first system "the middle part of the system" broadcasts - the multi-transmission mode and the second signal transmission ς ^ far-signal The above and other objects of the present invention are accommodated. See below. _, and with the accompanying drawings, for details 6 201238332 [Embodiment] Please refer to the _ ^ ^ system of the system i ghost diagram, which is a multimedia broadcast device π and multi-butterfly proposed by the present invention. The multimedia playback system comprises: a multimedia-provided, heterogeneous, similar playback device 13 that can be signaled to each other by a plurality of the same type 11 for transmitting the multi-picture 2. The manner in which the multimedia providing device body provides the device 1 and the body valley is not limited to one type, that is, the same program content of the multimedia medium can be transmitted in multiple types of signal transmission modes at the same time. Note that the program is the same 斩f'. The content of the program refers to the content of the user's view, that is, the user's program, the same variety show, or the same movie. The content of the game is different because the signal transmission method is different. Cheek ^. That is to say, the difference in the manner of signal transmission is performed by the transmitter f, the transmission format or the compression format. Therefore, the signal transmission of the class is the same as that of the program transmitted, but different kinds of, for example, The amount of information contained is not the same. The method for transmitting the television program and the second signal transmitting party to view the multimedia content corresponding to the use, wherein when the user is the program of the HZ A program, the content of the multimedia content is better. Viewing quality:: The multimedia content of the A program transmitted by the letter is corresponding to the -4=方^相^^ program

The content of A program transmitted by Si in the form of signal/signal has more than six. Dong 1 needs to pay attention to the fact that the amount of data here can refer to the initial amount of data when the media providing device 11 is in the A program. It can refer to the amount of circulation when the different letter 201238332 is transmitted by the % square bucket - the following is no longer stated. The other side of the multimedia broadcast if is included in the multimedia broadcast device 13, the multi-content sent, and the second media transmission mode 3 media content can be played, and the multimedia playback device 13 transmits the signal in the ': The multimedia content transmitted by the mode is used for the transmission mode of the grain and the signal of the second signal transmission mode. First, it is assumed that the multimedia playback device 13 plays first: The multimedia content transmitted by the mode, when receiving the multimedia content transmitted by the ==== signal, the played 3 is transmitted by means of the first signal transmission mode, but the quality is better, but the content is better. The amount of data is large, so the consumed multimedia multimedia playback device U is receiving 3=:. When the multimedia content is sent, if the first signal transmission mode is maintained in an ideal state, the multimedia content sent by the second 彳 彳 5 quality is maintained; otherwise, if the first signaling mode is When the transmission gradually deteriorates, and then meets the first-predetermined condition, the signal quality of the = is changed to play with the second-spinning transmission side ★ sinking & snail-spinning set-up i3 when the multimedia providing device 11 is profitable; The first multimedia content. When the multimedia content is sent, although the channel, the program #2, and the transmission mode are the same when transmitted, the second letter;;;= uses the first transmission: the transmission formula or the bandwidth and the first signal transmission. If the data frame playback device 13 transmits the same signal with the second signal, the amount of data of the multimedia content is relatively small. In the evening, although the amount of multimedia content is small, the video and audio of the program content transmitted by the mode are transmitted by the second signal~ greedy. However, because the amount of material is small, the transmission quality of the network is disturbed or Under the signal condition, the multimedia 2 transmitted by the second signal transmission mode is relatively smooth and is received by the multimedia playback device 13. The content can be relatively reversed when the multimedia playback device 13 uses the second light. When the multimedia content is displayed, once the video and audio quality broadcasted by the first signal transmission mode has been recovered, it has been restored to a good shape and can be provided with a better quality. That is to say, when the player plays the multimedia content transmitted by the broadcaster, the first signal is still detected. The signal quality of the signal product is in accordance with the second. When the preset condition is met, the multimedia content transmitted by the multimedia content mode is transmitted. The playback is performed by the first signal transmission, and the multimedia device 13 is switched to receive the first, and the body providing device η is provided by the multimedia but the signal quality occurs (4). The media content, the physical content may be Material_Transfer mode transmitted = the multimedia viewed by the person, that is, the signal transmission of the multimedia playback device 13 and the second signal transmission mode: the program selected by the first signal transmission is based on the money transmission method The status 'is decided to broadcast the multimedia content that can be sent to the multimedia player. Whether the multimedia content transmitted under the same transmission is in the same transmission mode as the T. This multimedia playback slot 13 can be based on the channel or program. For example, if the first signal transmission is performed, and the multimedia internal mode is simultaneously supported by the digital television and the second signal transmission mode, the multimedia playback device 1 1201238332 13 is used to receive the program content. The multimedia played in the sub-Zhong Guang also contains relevant information during the program broadcast: The Electronic Program Guide (EpG) can be used as the information feature to identify the video, so In the first aspect, the multimedia playback device 13 can recognize the multimedia content transmitted using different signal transmission methods according to information features such as an electronic program guide. = On, the information characteristics used to identify multimedia content are not limited to the electronic section = form. For example, the information feature here may also be the frequency band used by the channel, that is, the frequency band used by the program by different signal transmission methods = the same frequency channel transmitted in each transmission mode, and then continued. According to this, as a basis for identifying multimedia content; or when transmitting and receiving channels and programs, a specific identification code is assigned, and the multimedia content and the like are separately identified. ... Please refer to the first figure (b), which is a schematic diagram of the application of the multimedia playing system proposed by the present invention. In the present invention, the multimedia providing device u is "general" so that the multimedia providing device 11 can select to use the multimedia wireless transmitting station 111, the satellite 113, the network server or other types of devices. According to the above description, it is assumed that the multimedia wireless transmitting station m transmits multimedia content such as television programs and broadcast programs by terrestrial broadcasting (DVB-T) in Digital Video Broadcasting (DVB), and the satellite 113 The multimedia content is transmitted by means of satellite broadcasting (DVB-S). At this time, the terrestrial broadcasting and the satellite broadcasting are equivalent to the first signal transmission mode and the second signal transmission mode that the multimedia providing device 11 can provide. 'Of course' the first signal transmission mode and the second signal transmission mode selection 201238332 = inside, can also be ^ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ No need to be restricted. Take the number 2 video system as an example. In order to provide different TV broadcasts, broadcasters usually broadcast digital TV signals in a non-broadcast manner. For example, different TV broadcast systems (DVB-T/DVB-H) and different digital TVs are provided. (4) Parameters of different faces, such as: quadrature amplitude modulation A_tude M〇dulati〇n; QAM), quad phase shift modulation with hierarchical transmission (Quad phase Shift Keyi program ^PSK), or _TV Different media such as broadcast and network broadcast the same. Therefore, as shown in the first-picture (b), the multimedia playback device 13 receives the multimedia content transmitted by the terrestrial broadcast and the satellite broadcast through the network 12, assuming At the same time, it is similar to the practice of terrestrial broadcasting and satellite broadcasting. The money of this method will also be affected by different media. The multimedia player 13 can play different signals. The multimedia content of the same hb〇 channel transmitted by the transmission mode 'for example: when the money for terrestrial broadcasting is recorded, the content of the HB0 program transmitted by the terrestrial broadcast is transmitted; otherwise, the HBO festival transmitted by the star broadcast mode is played. Content. Of course, in practical applications, the multimedia content of the transmission mode that the multimedia providing device u can support and play is not limited to the type of data that can be transmitted by the above two signal transmission methods, such as the network television provided by Chunghwa Telecom ( MGD)' or the device that is used to read the Dragon TV in the Internet to be used in the 201238332 type. Further exploration of digital TV applications can be found that users can watch digital TV in two categories: one for home fixed reception and the other for mobile reception, which is mainly for car or mobile phone applications. . Digital TV system with 曰本(Integrated Services Digital

Broadcasting ‘short for ISDB_T, for example, provides different signal transmission modes for home and automotive applications. For convenience of explanation, it is assumed that the application for home stationary reception is the first signal transmission mode, and the application for mobile reception is the second signal transmission mode, and ISDB-T is for the first signal transmission mode. The high-quality program content is transmitted in the form of 12Segment and 64QAM, and the multimedia playback device used in combination can receive the antenna through the antenna; in addition, when the program of the second money is transmitted to the same program, the i segment, The QPSK method transmits the contents of the f-channel (four) (four), and the multimedia playback device is mainly based on the mobile application. ▲ In simple terms, in the ISDB_T system /, the same program will be transmitted in two quality and low-quality signal transmission modes. * There is a certain gap in the quality of the playback. However, it is used. In addition to the consideration of picture quality, the experience of using the fluency of the time may be more obvious. Yi Luzhi, the user watches the program content in a good mode to watch, so when the signal strength is normal; when the m1 degree is weak, it is transmitted and played in a low quality = mode. That is to say, when the face is presented first, and then the playback quality of the picture is considered. For this reason, the multimedia playback device (10) provided by the present invention has the same signal transmission method as that of the signal transmission method of the signal transmission mode, and the signal quality is different. That is to say, the multimedia playback device 13 can switch between the transmission modes of the ^ number, and when the signal quality is poor, the signal transmission mode of the == smooth sound image is received, and the second image is selected. The square block of the multi-medullary playback device proposed by the Japanese version: Figure. The multimedia playback device 413 mainly includes a receiving unit S, and the playback unit 133' is electrically connected to each other. The receiving unit 133 and the second receiving unit 11 1313 are used to separate the signal transmission and the second signal transmission mode. The playback unit 133 is used to match the receiving unit 131. And =;, 1 capacity. Of course, in practical applications, the receiving unit (3) also serves as a receiver for the Eternal type. The first device 13 is used by the first device 13 to play the multimedia content transmitted by the domain communication mode. When the first number is changed to meet the first preset condition, the playback is performed by the number transmitter. The multimedia content. Then, when the multimedia played by the first letter is good and the second preset condition is met, the multimedia transmitted by the conversion type =. The original/replaced playback is replaced by the first signal transmitting means 13 and the early 135 and the storage unit 137 in the outer/multimedia playback unit 135 of the playback unit 133. Among them, the control mode corresponds to ^t; 51 is judged by various wires to transmit the quality of the transmission method ^ ^ quality, and choose which signal to transmit the channel, program as the source of multimedia content 13 201238332 source. The storage unit I37 can be used to store the correspondence between the multimedia (4) content and the information, or as a temporary storage space in the storage and multimedia. The multimedia play farm 13 provided by the invention can support more than two kinds of television broadcast modes, for example, not TV (four) (dvb_t, DVB-H), different digital television broadcast parameters (64qam, QPSK secret H. erarch. Al Transmission) . ^ ^ ^ Projects (digital TV, analog TV), or different resolutions (high-definition programs with a resolution of 1920x1080, programs with 64-inch enamel. Thanks to TV broadcasts) In order to respond to different TV reception methods, the industry provides a program that does not use the electronic program form or other information features to search whether two different playback systems reduce the same program. The transmission method used in the same way as the signal quality of the program. If the signal reception quality is good, the high-quality surface elements and demodulation elements are used for reception, otherwise the lower quality is provided, but the smoothness is provided. Components, demodulation components, and so on, when the user is in an environment TV with poor signal strength, poor quality, or when the signal strength is changed due to dynamic movement or weather factors, It is possible to continuously watch smooth sounds and pictures without causing the sound images to be intermittent or even without any image rotation. ^ When the multimedia playback device 13 starts up, it will first sense and list the recipients who support it. Various signal transmission methods, and then according to the channel selected by the user, it is judged whether the channel is transmitted by different signal transmission modes at the same time. If there is any, it is determined according to the signal reception quality whether or not to change the nickname transmission method of 201238332. If the signal strength is sufficient (ie, meets the second preset condition), the high-definition television broadcast signal is used, and if the signal strength is insufficient (ie, the first preset condition is met), the television signal is switched to the low-quality TV signal. For convenience of explanation, the first signal transmission method and the second signal transmission method are exemplified here, but the present invention can support more types of transmission methods instead of only two transmission methods. The difference between each signal transmission mode refers to various possible differences, that is, the modulation mode is different, and the frequency is occupied. The difference in width, the difference between the broadcast signal and the resolution of the knead surface can be the difference here. Generally speaking, when judging the signal quality and intensity, the signal quality after demodulation of the demodulation element is used as the basis. For example: carrier to noise ratio (C/N), SNR, Signal t〇n〇ise rati〇, Bit Error Rate or the number of blocks that cannot be corrected (Uncorrectable) Block Count, referred to as UBC). Taking the TV program signal transmitted by Japan as an example, when the quality of the number of the ^ signal has reached an unacceptable state when the first signal transmission mode is transmitted, the multimedia content transmitted by the H money transmission mode can still be lower. Received in the state of twelve decibels. Therefore, when the signal quality of the type is weakened, the Weidan 1 in the multimedia playback device 13 can use the second receiver 13Π to receive the multimedia content transmitted by the second 芦 传送 传送 , , , , , When you transfer the multimedia content transmitted by you, you can maintain the playback quality of the video. For example, if the multimedia playback device 13 is used in the car, when the car is stationary, the car_passenger can watch the high-quality (four) mesh, and when the car is in motion, the signal receiving capability is poor at this time, and the first is received by the tiger.传15 201238332 The content of the program transmitted by the delivery method is transmitted to the program in the way of the ship. In the case of transmission, the content of the inside of the program is transmitted in a lower quality mode, and the production of the product is heard: but the experience can be seen at this time. The day also allows the money to obtain a better simplification. The multimedia =2 mode provided by the present invention automatically switches between the two, allowing the user to watch the electric two; In the process of watching the TV program, the media playback device 丨3 will continue to receive the quality of the target signal in the environment where the location is located. If the reception quality is good, switching to the high-quality program t switches to the low-quality program. - When the user watches TV in a weak signal environment, or the signal strength changes due to the user's movement or weather factors, the smooth sound and the face can still be watched continuously, without causing the sound image to be intermittent or even Occurs without any image output. In addition to Japan's ISDB-T system, other regions offer different delivery methods for both fixed and mobile applications. For example, the United States also provides Advanced Television Standards Committee (Advanced Televisi〇n Systems).

Committee, abbreviated as ATSC), the ATSC digital TV standard, and the ATSC_MH standard for mobile and handheld devices, while the European Union provides low-level DVB-T (DVB-T) for terrestrial broadcast applications. Low Priority (referred to as DVB-T LP), high-grade DVB-T (DVB-T High Priority, DVB-T HP for short), and ground/handheld digital multimedia broadcasting (Digital Multimedia) Broadcast-Terrestrial/Handheld, referred to as DMB-TH), China Mobile Multimedia Broadcasting System (chinaMobile 201238332)

Multimedia Broadcasting </ hereinafter referred to as CMMB) Two transmissions See King Figure (8) (8), which is a flow chart of a preferred embodiment of the n° method proposed by the present invention. First, the multimedia playback device, the supported multimedia providing device and each multimedia 3 mode TM1) are listed; then the multimedia content of each channel transmitted by 2=&amp; 4 is read (in the user selected place) After watching the channel (step s;

Whether or not the capacity is available through the d J mouth is now available (step S304). J's production of 10 骤 请 请 的 的 的 , , 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体 多媒体' Get multimedia content. Also, the pre-demodulation mode is such that since the channel that the user reselects in the viewing section may be merged, the channel is switched, and the user supplies the multimedia content, so the signal transmission mode of the class is used to refer to the switching channel (step S3(1). If the user is disconnected from the original setting, the user does not switch channels. If the user switches to receive multimedia content, the anti-media playback device is used by the user and wants to watch other programs. The re-selected t is then returned to step S304, which is also the judgment formula. ΜProvides the Wei _ signal transmission mode. On the other hand, when the channel of the cow is viewed, the judgment result of the complex &amp; 04 is used. The device is designed to be fine, and the multimedia mode is currently provided. The signal quality of the transmission mode (step 201238332) The multimedia transmitted by the first transmission mode; the volume preference is preferred! , :=== 式5彳α口口质 as the default comparison object. ^The signal of the current multi-type money transmission mode is broken, the signal quality of the first signal transmission mode is changed. First-preset condition (step S3〇6). If the quality of the first signal transmission is still within the acceptable range = transmitted in the first signal transmission mode == judgment during playback of the multimedia player Continue to switch the frequency (step: f13), if the user does not change, the second == send mode (four) break result is, the first signal transmission signal transmission mode!: pre-5 and conditional, representing the current first - Look at the content of the program;; the quality is already too bad, and seriously affects the user's view is to use the: υϋ media playback device - the content that is preset to play at the beginning, then at this time if the symbol is transmitted High-quality multimedia mode signal quality = 2 When the condition is set, the second signal transmission mode is represented by the first signal: at this time, the J media playback device plays the media content transmitted by the number transmission method. The second letter of the appropriate media content has a small amount of data, so 201238332 pay, but the book is second; although not in the first signal transmission mode, the _ pass = the transmitted multi-media delivery method: b), and according to the first - The number passes the processing flow of the first signal, that is, it takes the pre-set signal quality ratio 峨== to set the condition (step coffee). The negative result is good and the second pre-cafe is judged as the result - Signal at bar =: represents the first-signal transmitter = the message transmitted by the first-domain transmission mode is the processing flow of _. The media valley, that is, the letter (4) of the first-signal transmission mode At the first time, the U quality representing the first signal transmission mode has not improved. At this time, the multi-signal transmitted by the multi-signal two-signal transmission mode will continue to play and the second media signal is continuously played by the media playback device; When there is more content, it is also necessary to consider that the multimedia used is to determine whether the user switches channels (steps, and also if the user switches the channel of the channel to $/=307 or less), ^^ The code is determined by step S304. Start the stick. It can be concluded from the flow of the third figure that the multimedia broadcast 201238332 method proposed by the present invention includes the following steps: simultaneously receiving the 5 media transmitted by the first signal transmission mode and the first mode, w, and the second transmission mode of the second transmission mode -,俨 二 'According to the characteristics of the information, it is assumed that the enemy is first broadcasted: the media in the transmission mode transmitted by the first transmission mode, if the multimedia transmitted by the first transmission mode is played, if the first signal transmission party = square ::: When the multimedia content condition is transmitted, the quality of the broadcaster is changed to the first preset content; if the multimedia is transmitted, if the first signal is transmitted by the sender A] When the play is changed to the first signal to

Under the J-body playback device, the individual V:== is used to transmit the multimedia signal, and the signal strength corresponding to the signal quality 1 transmission mode is used, and accordingly, the remaining ship is called Wei Weihe. Get the money transfer method. Please refer to section '(8)' for the data processing flow diagram of the first preferred embodiment of the multimedia playback apparatus proposed by the present invention. The receiving unit 131 includes two receivers: a first receiver 1311 and a second receiver 1313, respectively. The first receiver 1311 includes a first spectrometer 13111 and a first demodulator 13112 for receiving a broadcast message, and is used with the first electronic program form parser 13113 to determine an electronic program form in the broadcast signal. Similarly, the second receiver 1313 also includes similar functional elements, namely, a second tuner 13131, 20 201238332 second demodulator 13132 and a second electronic program form parser 13133. The functional elements in each of the receivers can communicate and communicate with each other through electrical connection. The signal quality sensor 1316 may be separately disposed between the first receiver 1311 and the second receiver 1313, so that the signal quality of the television receiver received by the first receiver 1311 and the second receiver 1313 is interrupted. Subsequent use is used to determine which signal transmission format to use. _ It should be noted that the signal quality sensor 1316 here is a functional block for the unintentional function. The signal quality sensor 1316 may be a hardware component implemented by hardware, but may also be a receiving component. The softness used by the device is implemented, for example, the signal quality corresponding to the multimedia content transmitted by the first receiver 1311 and transmitted by the first nickname transmission mode is gradually degraded, and once the threshold value is reached, The setting is changed to the second receiver 1313 as the main signal receiving source, and the multimedia content transmitted in the second signal transmission mode is received. The playing unit 133 includes: a streaming stream demultiplexer 1331, and a video player that is played by the root (4) for video or audio format. Eight video playback n is composed of video format controller 1332, high quality video, horse 13322, standard video decoder 13323, and the result is displayed through screen 1334. The part of the audio is transmitted by the 曰 hole decoder 1333 to the racquet 1335 for playback. In addition, you can also use the storage unit 137 to record the electronic program form library, 1371. Here, the electronic program form database 1371 can be stored in a non-volatile type, with a towel, or by a multi-cell playback device, when the line is turned on and the initialization process is performed, the search is performed 21 201238332. The letter firstly stores the relevant information of the electronic program form of the electronic program program listing database contained in the new i-wheel stream through the contents of each tuning component and the solution form, and stores whether the electronic has the same program. First, search the electronic program form: Fine Library 1371 ▲ When the monthly user chooses the channel, if it is used to receive high quality, 曰 5 self-assembly, demodulation yuan! The quality of the content of the content, then the multimedia playback sound 13 == high-quality program content of 1371 cut _ material ==== target form database and then the program string production threats or network tempo Component, ^wheels; 1333. The correct compression format of the '=13 illusion and audio decoder system may be different, so the video camera will be used to determine the video video and then use the correct video decoder (for example, 佥2 Γ2 The device 13322 or the standard enamel video decoder _) solves the image, and the image is sent to the screen track. On the other hand, the audio data is decoded; after the second stone device 1333 is decoded, the image is output to the remaining 1335 for playback. ° "Generally speaking, due to the large amount of data of the video data, the decoding process consumes system resources, so the internal structure of the video player 1332 is implemented in a hardware manner, but because the decoding method is based on the multimedia playback device 13 It depends on the video playback format that can be supported. Therefore, if you use the software to match the hardware or the software to realize the video decoding function, the same is true. For the same reason, in terms of audio data, the decoding method can be utilized. 201238332 uses hardware to implement different audio format decoding, but it may also be implemented in a software-implemented manner using a digital signal processor (DSP) or a general-purpose processor (General Process). Please refer to the fourth figure (b), which is a data processing flow diagram of the first preferred embodiment of the present invention for implementing a multimedia playback device. First, a first receiver 1311 is included in the receiving unit. The second receiver mg, the second receiver 1315. Because of the internal configuration of the first receiver 1311 and the second receiver 1313 because It is similar to the architecture of the fourth_), so the description of the towel is not described in detail in the description herein, and is only shown in a general manner. In the receiving unit 131 of the second preferred embodiment, the provision is further provided. The third receiving H 1315 of the network television receiving function is for receiving the television program transmitted through the network. The network-based transmission is relatively stable, if the result judged by the signal quality sensor 1316 is When the television program signal received by the receiver 1311 or the second receiver 1313 is unstable, the program content of the transmission mode used by the third receiver 1315 is played instead. The first signal transmission method is used. It is said that the transmission stream connected by the first receiver 1311 is decoded by the first transmission stream demultiplexer l337i, and the corresponding multimedia content is stored in the storage early element 137. The first storage space 1372 in the second signal transmission mode is connected to the second receiver 1313, and the transmission stream is decomposed by the second transmission stream demultiplexer 13372, !! After the corresponding multimedia content, The multimedia content is stored in the second storage space 1373 stored in the early element 137. In the first transmission mode 5, the transmission stream received by the third receiver 1315 23 201238332 is in the third transmission. After the stream is streamed to obtain the corresponding multimedia content, the media ί is stored in the storage unit 137_third age" 1374. Each of the receivers of the preferred embodiment has its corresponding transmission of $string acquisition multiplex |5 and storage space, so when using different receivers to receive multimedia content, @ &amp; ° 纠值纠玄伽1 Save the contents of different signal transmission methods, so - 'subsequent to the signal selector 1351 ^ select ^ _ ' can (4) use different storage space to know: the multimedia content. The transmission method of the apostrophe used by each receiver selected in the preferred embodiment does not need to be limited. For example, i315 makes (4) scale dragons in addition to miscellaneous turns, no _= may also lie down (four) Internet Wei, etc. The square wire is the object of the application. In the invention, the material mixing system 13 is provided with different signal transmission modes provided by the multimedia providing device, and can also be transmitted by a plurality of multimedia providing devices. Transfer method to transfer. The number of multimedia providing devices and the number of signal transmission modes and the multimedia playback device li receive and play the behavior of multiple ^ according to the signal quality. By means of the comparison of the information, the content of the Wei multimedia program is not (4), and the result of the comparison is stored in the storage unit in advance, and then the ratio of the automatic sub-form form information is selected when the user selects the channel and the program to be watched. For the detection of whether the channel selected by the user at the same time has the same program, the high-quality and low-quality programs are switched via _, dynamic 24 201238332 on the quality of the transmitted stream signal. The delivery method separately transmits the high-transmission ==-delivered multimedia content--it is high-quality, and the quality is _: In the above description, the electronic two-square block, module, circuit and method steps can be used. ; ^66 贞红软体' or a combination of the two to achieve, and the link, even i, a_ ', regardless of the above description is used to signal the purpose of m or other alternatives to the terms, such as the description In the implementation of the logic side: == means, such as cable 2 = and scales, in a direct and indirect way, to achieve the purpose of the exchange and transmission of information, control information. two! The language used in the ί明书 does not form the case when the connection is realized. t 1 ’ will not be separated from the case by the difference in the way it is connected. The present invention has been described as being limited to the above-described preferred embodiments, which are intended to be modified by those skilled in the art, and are not intended to be protected by the appended claims. , '[Simple description of the diagram] This case can be understood by the following figures and descriptions: The first figure (a) is a block diagram of a multimedia playback system proposed by the present invention. 25 201238332 First diagram (b), which is an application schematic of the multimedia playback system proposed by the present invention. The second figure is a functional block diagram of a multimedia playback device proposed by the present invention. The second diagram (a)(b)' is a flow chart of a preferred embodiment of the multimedia playback method proposed by the present invention. Figure 4 (a) is a data processing flow diagram of a first preferred embodiment of the present invention for implementing a multimedia playback device. Figure 4 (b) is a data processing flow diagram of a second preferred embodiment of the present invention for implementing a multimedia playback device. [Main component symbol description] The components included in the diagram of the present invention are listed as follows: Network 12 Multimedia providing device 11 Multimedia playback device 13 Satellite 113 First receiver 1311 Play unit 133 Signal selector 1351 Steps S301 to S315 First Demodulation element 13112 First electronic program form parsing element Second tuning element 13131 Second electronic program form parsing element No. 4 quality sensor 1316 Multimedia wireless transmitting station 111 Receiving unit 131 Second receiver 1313 Control unit 135 Storage unit 137 A tuning component 13111 13113 a second demodulating component 13132 13133 a control unit 13 5 26 201238332 a signal selector 1351 an electronic program form database 1371 a video player 1332

Screen 1334 mouth spurs eight 1335 storage unit 137 transmission stream multiplexer 1331 video format detector 13321 standard enamel video decoder 13323 audio decoder 1333 third receiver 1315 first transmission stream multiplexer Two transmission stream demultiplexer third transmission stream demultiplexer first storage space 1372 third storage space 1374 13371 13372 13373 second storage space 1373 27

Claims (1)

201238332 VII. Patent application scope: 1. A multimedia playing method, comprising the following steps: and; and playing a multimedia in-one stream transmitted by the first signal transmission mode; the signal quality of the first signal transmission mode is deteriorated And when the f-pre-condition is met, the content of the multimedia content transmitted by the second signal transmission mode is transmitted by the first signal transmission mode, and the data volume transmitted by the second signal transmission mode is transmitted. For the multimedia playing method described in item i of the patent scope, the step of the best is: when the signal quality of the first signal transmission mode is changed, the rural frequency content is transmitted. U transmission mode person, 3. The method of broadcasting according to the scope of the patent application scope is as follows: delivery mode transmission mode, the second signal transmission mode is more! Please specialize in (4) the multi-ship method described in item 1, which Transmission == Next step: The multimedia content transmitted by the first signal, the mode and the second signaling mode is identified according to the information feature. The multimedia playing device comprises: a receiving unit, which receives a first signal transmission mode and 28 5.201238332 body content--multimedia content, wherein the multimedia number transmitting party sends a g-sending material to the delivery side= The amount of data sent by the second is compared with the second receiving unit of the first signal transmission mode, which is to play the signal quality variation body of the signal transmission mode, and the second preset is used for the second playback. When the condition is met, the transporter cuts the multimedia content. 6. If the playing unit in the fifth item of the patent application is in the first-multi-media, playback device, which meets a second preset condition, the quality of the heart is better and the multimedia content is sent. ^ The first transmission mode transmits the multimedia content as described in item 5 of the ^^利利范围, Α = according to the 1 scale sign, the multimedia content transmitted by the (=) (4) transmission mode is identified. And the first-type multimedia playback system, comprising: a disk-type device, which uses the data transmitted by the -th signal-transmitting media content in the first-signal transmission mode. The amount of data transferred is a large amount, and the I俜 playback device 'signal is connected to the multimedia providing device-preset condition, and the media content transmitted by the second signal transmission mode is played. 9. The multimedia playback system of claim 8, wherein the media playback device is played when the signal quality of the first signal transmission mode is 隹 and a second preset condition is met. The multimedia content transmitted by the first signal transmission mode. 1. The multimedia playback system of claim 8, wherein the multimedia playback device identifies the multimedia transmitted by the first and second transmission modes according to an information feature Inner valley 0