Patent Application
20140013362
The present invention relates to the digital television technologies, and in particular, to a method for implementing a digital television technology and a wireless fidelity hot spot apparatus.
In the conventional art, if a user wants to watch a digital television (DTV) program by using a terminal (such as a mobile phone), the terminal should support a DTV technology, that is, a DTV receiving module needs to be loaded on the terminal.
During a process of implementing an embodiment of the present invention, the inventor finds that at least the following technical defects exist in the conventional art. At present, the charging of a DTV service is based on a DTV receiving module, that is, if a user wants to be able to watch a DTV program by using multiple terminals, the user must pay multiple times; in addition, only after a DTV receiving module is loaded on a terminal, a user can watch a DTV program; and the foregoing defects increase implementation complexity of the DTV technology.
In view of this, the main objective of the present invention lies in providing a method for implementing a digital television technology, which can decrease implementation complexity of the DTV technology.
Another objective of the present invention lies in providing a wireless fidelity hot spot apparatus, which can decrease implementation complexity of the digital television technology.
To achieve the foregoing objectives, technical solutions of the present invention are implemented as follows.
A method for implementing a digital television technology includes performing, by a wireless fidelity hot spot apparatus, decryption and parsing on a received digital television data stream, obtaining an audio stream, a video stream, and a system stream, performing packing on the obtained audio stream, video stream, and system stream according to a predetermined format, sending the packed audio stream, video stream, and system stream to a terminal by using a wireless fidelity technology, and performing, by the terminal, decoding and playback on the packed audio stream, video stream, and system stream received from the wireless fidelity hot spot apparatus.
A wireless fidelity hot spot apparatus includes an antenna, a digital television receiving module, and a sending module. The digital television receiving module is configured to receive a digital television data stream through the antenna, perform decryption and parsing on the received digital television data stream, obtain an audio stream, a video stream, and a system stream, perform packing on the obtained audio stream, video stream, and system stream according to a predetermined format, and send the packed audio stream, video stream, and system stream to the sending module. The sending module is configured to send the packed audio stream, video stream, and system stream to a terminal by using a wireless fidelity technology.
It may be seen that, by using the technical solutions of the present invention, a digital television receiving module is loaded on a wireless fidelity hot spot apparatus, but not on a terminal. In this way, if a user wants to be able to watch a digital television program by using multiple terminals, it is only required to send an audio stream, a video stream, and a system stream to the multiple terminals by using a wireless fidelity hot spot apparatus. Because the charging of a digital television service is based on the digital television receiving module, the user only needs to pay once, and, the user may watch the digital television program by using any terminal, no more being limited by whether a digital television receiving module is loaded on the terminal or not. In a word, by using the technical solutions of the present invention, implementation complexity of a digital television technology may be decreased.
For a more complete understanding of the present invention, and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawing, in which:
For problems in the conventional art, the present invention proposes an improved solution for implementing a DTV technology, that is, setting a wireless fidelity (WiFi) hot spot apparatus, configured to receive a DTV data stream, and according to the received DTV data stream, obtain an audio stream, a video stream, and a system stream, and send the audio stream, the video stream, and the system stream to a terminal, where the terminal performs decoding and playback on the received audio stream, video stream, and system stream.
The number of the foregoing terminals may be one or more. For example, if a user wants to be able to watch a DTV program by using a mobile phone, a notebook, and a netbook, the number of the terminals is 3, that is, the WiFi hot spot apparatus needs to send the obtained audio stream, video stream, and system stream to the mobile phone, notebook, and netbook of the user (the screen of a mobile phone is relatively small, the resolution of the screen is generally about 640×480, or even smaller, and the watching effect, compared with a notebook and a netbook, is worse).
The foregoing WiFi hot spot apparatus is a completely new device, for example, may be a new product among mobile wireless router series products. The WiFi hot spot apparatus is a product in a hybrid form of WiFi and modem, with fashionable appearance design, and with ease-to-use and portability of a wireless modem.
To make the technical solutions of the present invention clearer and more explicit, the solutions of the present invention are further described in detail in the following with reference to accompanying drawings and embodiments.
Step 21: A WiFi hot spot apparatus receives a DTV data stream, performs decryption and parsing on the DTV data stream, and obtains an audio stream, a video stream, and a system stream.
In this step, the WiFi hot spot apparatus may receive a DTV data stream from a network side device such as a base station through its own antenna, perform decryption on the DTV data stream, and obtain a composite stream, and, afterwards, perform parsing on the obtained composite stream, and obtain an audio stream, a video stream, and a system stream.
How to perform decryption and parsing are both the conventional art.
Step 22: The WiFi hot spot apparatus performs packing on the obtained audio stream, video stream, and system stream according to a predetermined format, and sends the packed audio stream, video stream, and system stream to a terminal by using a wireless fidelity technology.
In this step, the WiFi hot spot apparatus may perform packing on the obtained audio stream, video stream, and system stream according to a format stipulated by a Digital Living Network Alliance (DLAN) architecture, for example, a format stipulated by the real-time transport protocol (RTP), and send the packed audio stream, video stream, and system stream to a terminal by using a WiFi technology. Accordingly, the terminal needs to support the DLAN architecture, and support the WiFi technology. How to perform packing is the conventional art.
Step 23: The terminal performs decoding and playback on the received audio stream, video stream, and system stream.
In actual application, to avoid a case that a data stream is interrupted at a time point, in this step, the decoded audio stream, video stream, and system stream may be cached for a period of time, and then be played back, where the period of time is usually 2 seconds.
Based on the foregoing introduction,
The number of terminals 32 may be one, and also may be a plurality.
The foregoing predetermined format may be a format stipulated by the DLAN architecture.
As shown in
From the foregoing introduction, it may be seen that, the CA unit 422 may either connect to the DTV receiving unit 421, or connect to the APP unit 423. In actual application, there are multiple types of implementation manners of the CA unit 422, for example, in the China Mobile Multimedia Broadcasting (CMMB) standard mainly promoted by the State Administration of Radio, Film and Television, implementation manners such as a big card, a small card, a surface mounted device (SMD), and a user identification card (SIM) have been promoted successively.
When an implementation manner of the CA unit 422 is a big card or small card, an interface between the CA unit 422 and the DTV receiving unit 421, or an interface between the CA unit 422 and the APP unit 423 may be a secure digital memory card (SD) interface, and when the implementation manner of the CA unit 422 is an SMD or a SIM, the interface between the CA unit 422 and the DTV receiving unit 421, or the interface between the CA unit 422 and the APP unit 423 may be a SIM interface.
In addition, an interface between the DTV receiving unit 421 and the APP unit 423 may be a secure digital input and output card (SDIO) interface, a synchronization serial interface (SPI), or a universal serial bus (USB) interface. An interface between the APP unit 423 and the sending module 43 may be an SDIO interface.
In actual application, the foregoing modules and units all work under the control of corresponding software.
It may be seen that, by using the technical solutions of the present invention, a DTV receiving module is loaded on a WiFi hot spot apparatus, but not on a terminal. In this way, if a user wants to be able to watch a DTV program by using multiple terminals, it is only required to send an audio stream, a video stream, and a system stream to the multiple terminals by using the WiFi hot spot apparatus, but because the charging of a DTV service is based on the DTV receiving module, the user only needs to pay once, and, the user may watch the DTV program by using any terminal, no more being limited by whether a DTV receiving module is loaded on the terminal or not, thereby decreasing implementation complexity of a DTV technology. In addition, the solutions of the present invention do not need to perform an additional operation such as configuration on the terminal, being simple and convenient to implement and facilitating popularization.
The foregoing descriptions are merely exemplary embodiments of the present invention, but are not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should fall within the protection scope of the present invention.
While this invention has been described with reference to illustrative embodiments, this description is not intended to be construed in a limiting sense. Various modifications and combinations of the illustrative embodiments, as well as other embodiments of the invention, will be apparent to persons skilled in the art upon reference to the description. It is therefore intended that the appended claims encompass any such modifications or embodiments.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201110056634.5 | Mar 2011 | CN | national |
This application is a continuation of International Application No. PCT/CN2012/071968, filed on Mar. 6, 2012, which claims priority to Chinese Patent Application No. 201110056634.5, filed on Mar. 9, 2011, both of which are hereby incorporated herein by reference in their entireties.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/CN2012/071968 | Mar 2012 | US |
| Child | 14020655 | US |
