CN103327395A - Digital television data processing method and digital television system using same - Google Patents
Digital television data processing method and digital television system using same Download PDFInfo
- Publication number
- CN103327395A CN103327395A CN2012100746183A CN201210074618A CN103327395A CN 103327395 A CN103327395 A CN 103327395A CN 2012100746183 A CN2012100746183 A CN 2012100746183A CN 201210074618 A CN201210074618 A CN 201210074618A CN 103327395 A CN103327395 A CN 103327395A
- Authority
- CN
- China
- Prior art keywords
- channel
- digital television
- data
- decoding
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention provides a digital television data processing method which includes: (a) storing second channel digital television data corresponding to a second channel when playing first channel digital television data corresponding to a first channel, wherein the second channel digital television data comprise voice data and image data; (b) when the first channel is switched to the second channel for playing, decoding the image data of the stored second channel digital television data at the first speed; (c) decoding the follow-up image data of the second channel digital television data at the second speed after real-time second channel digital television data corresponding to the second channel are decoded, and playing corresponding real-time decoding results, wherein the first speed is larger than the second speed.
Description
Technical field
The present invention is relevant for digital TV data processing method and digital television system, the digital TV data processing method of the broadcast fluency when being particularly to increase switching channels and the digital television system of using this digital TV data processing method of using this digital TV data processing method.
Background technology
Along with the progress of science and technology, digital television system replacement gradually the simulated television system because digital TV data is compared to the simulated television data, except comparatively clear, outside color is preferable, has more and be easy to record and control, strong, the frequency resource utilance advantages of higher of antijamming capability.
Fig. 1 has illustrated the schematic diagram of digital television system 100 in the known technology.As shown in Figure 1, digital television system 100 has comprised an antenna 101, a tuner (tuner) 103, a demodulator (demodulator) 105 and a decoder 109, after through tuner 103 and demodulator 105 processing, result can be recorded to storage device 107.Or after solving image and speech data through decoder 109 again, play digital television program immediately.These actions can be controlled by a control unit 106.Except element shown in Figure 1, know this skill person and have those other elements in the digital television system 100 when can understanding (as filter etc.) with and action in detail, so repeat no more in this.
Yet, if instant play digital television program, and when switching to another channel from a channel, owing to broadcast again after needing some times with digital TV data decoding, modulation.The user can can't see picture for some time when switching to new channel, therefore may allow the user feel not smooth.
Summary of the invention
Therefore, a purpose of the present invention is the digital TV data processing method that the broadcast fluency can increase switching channels the time is provided and the digital television system of using this digital TV data processing method.
One embodiment of the invention have disclosed a kind of digital TV data processing method, be applied to a television broadcasting system, this television broadcasting system receives this digital TV data processing method of digital TV data that is relevant to a plurality of channels simultaneously and comprises: when (a) playing one first channel digital television data corresponding to one first channel, store one second channel digital television data, it is corresponding to one second channel, wherein, these second channel digital television data comprise a speech data and an image data; (b) switch to when playing this second channel from this first channel, begin decoding with one first speed from this image datas of these second channel digital television data of before being stored; And (c) after decoding catch up with instant second channel digital television data corresponding to this second channel, with this image data of this second channel digital television data of a second speed decode successive, and play a corresponding instantaneous decoding result; Wherein, this first speed is higher than this second speed.
Another embodiment of the present invention has disclosed a kind of digital television system, comprises: an image-decoding device; One control unit; An and storage device; Wherein, this control unit is when the one first channel digital television data play corresponding to one first channel, the digital TV data of one second channel is stored to this storage device, and wherein, these second channel digital television data comprise a speech data and an image data; When switching to this second channel from this first channel, this image-decoding device begins decoding with one first speed from this image datas of these second channel digital television data of before being stored, after decoding catch up with instant second channel digital television data corresponding to this second channel, with this image data of this second channel digital television data of a second speed decode successive; This control unit is also controlled this digital television system and is play a corresponding instantaneous decoding result; And this first speed is higher than this second speed.
By aforesaid embodiment, can solve pre-recorded image and broadcast fast at the neutral gear of the digital TV data of handling institute's switching channels, and then play the digital TV data of institute's switching channels normally, the not smooth sense during with the reduction switching channels.
Description of drawings
Fig. 1 has illustrated the schematic diagram of digital television system in the known technology.
Fig. 2 has illustrated the schematic diagram of digital TV data processing method according to an embodiment of the invention.
Fig. 3 has illustrated the schematic diagram of a remote controller of digital television system.
Fig. 4 has illustrated the flow chart of digital TV data processing method according to an embodiment of the invention.
The main element symbol description
100 digital television systems
101 antennas
103 tuners
105 demodulators
107 storage devices
109 decoders
300 remote controllers
301 upwarding keys
303 down Arrows
305 return keys
The 401-415 step
Embodiment
In specification and claims, used some vocabulary to censure specific element.The person with usual knowledge in their respective areas should understand, and hardware manufacturer may be called same element with different nouns.This specification and follow-up claim are not used as distinguishing the mode of element with the difference of title, but the criterion that is used as distinguishing with the difference of element on function.Be an open term mentioned " comprising " in the middle of specification and the follow-up request item in the whole text, so should be construed to " comprise but be not limited to ".
Fig. 2 has illustrated the digital TV data processing method according to one embodiment of the invention.Second channel that in progress first channel shown in Figure 2 and desire are switched all belongs to same frequency, in general, the data of a plurality of channels under the same frequency can be received simultaneously, and this embodiment of the present invention more will belong in progress channel frequency other channels at least the digital TV data of one store.For example, when present embodiment was play the TV programme of first channel, the TV data of second channel was stored.Method shown in Figure 2 can use with other channels of first channel and the same frequency of second channel.Yet among another embodiment, first channel and second channel are not limited to be positioned at two channels of same frequency.The digital TV data of the channel that is recorded in addition, also is not limited to same frequency.Among another embodiment, the TV data of a plurality of channels of same frequency is not all to be stored.In technology now, most tuner 103 can only the same frequency of receiving demodulation the digital TV data of channel, therefore if desire receives compared to the TV data of the channel of in progress channel different frequent points, then may need plural tuner 103.How to select stored channel in advance with save its TV data that comprised, different execution modes is also arranged.For example, can be set up on their own by the user.And in another embodiment, can record the user automatically and watch the number of times of channel or time producing user's parameter, and decide the channel that will record according to this user's parameter.For instance, if be 5 according to watching the number of times of channel or time to judge the most normal channel of watching of user, 20 and 58, representing then that the user is everlasting switches between these channels, therefore, when the TV programme of the positive broadcasting channel 5 of TV, then channel 20 and 58 TV data that receive can be stored, conveniently to carry out digital TV data processing method according to an embodiment of the invention.Perhaps, even at the channel of watching outside 5,20 and 58, also store the TV data of this three channel in advance.
Please continue to consult Fig. 2, when when first channel switches to second channel, decoder 109 namely begin the to decode second channel digital television data of storage device 107 previous store recordings.Digital TV data is divided into image data and speech data two parts, and digital television system is provided with the different hardware of two covers at image data and the speech data of digital TV data respectively, in order to image data and the speech data of decoding respectively.In the present embodiment, the image data of the second channel digital television data of storage device 107 records comprises first particular type of frame, for example is a start frame (I frame).In an embodiment, digital television system is namely play this I frame (decoded result) after this first I frame is finished in decoding.In another embodiment, digital television system is not play corresponding I frame at once after above-mentioned decoding step is finished.In practical application, the image data similitude of corresponding these second channel digital television data of time period is higher near this I frame, when just image is static relatively, play this I frame immediately and can make the user obtain the image information immediately, can reduce the not smooth sense that just can see picture after the user must wait for a period of time in the known technology and bring; Yet if the image data of corresponding these second channel digital television data of this time period changes greatly, playing this I frame immediately, can to make the user more obviously experience visual discontinuous.Then, when follow-up these instant second channel digital television data were finished in decoder 109 decoding, digital television system was the decoded result of these instant second channel digital television data of normal play.In detail, in the T2 time range after switching to second channel, can at first directly read the second channel digital television data that record in the T1 time range and decode, and after decoding is finished, continue these second channel digital television data that decode successive receives.In the present embodiment, the second channel digital television data that record in this T1 time range comprise first I frame.At the same time, tuner 103 and demodulator 105 wait other pre-process unit and have switched to the second channel digital television data of handling follow-up reception.In the present embodiment, it comprises second I frame.After decoding first I frame, can utilize the information of I frame to continue these second channel digital television data that decode successive receives, the corresponding demonstration time mark of image data decoded result (the Presentation Time Stamp of these continuous second channel digital television data after the digital television system decoding is finished, PTS) show that it is with the instant crossfire of TV data (Live Stream) that receives synchronously the time, be that the image data decoded result of digital television system is when having caught up with the instant crossfire that receives, enter the T3 time range, begin to be relevant to the synchronous of the second channel digital television data,, and the decoded result (comprising the decoded result of image data and the decoded result of speech data) of the instant second channel digital television data of normal play.Digital television system can improve its decoding speed in the T2 time range, makes that the decoding speed in the T2 time range can come soon than handling the follow-up instant required decoding speed of these second channel digital television data in the T3 time range.
In one embodiment, in the time, can suspend the synchronization mechanism running in T2, even also synchronous (AV Sync) signal of a voice image presents the state of off.Voice image synchronizing signal is used for synchronously speech data and the image data of this digital TV data, if it opens the state of (on), then can decoding speed can't be accelerated for the decoded result of simultaneous voice data and the decoded result of image data, therefore can temporarily it be made into the state of off and the digital TV data of decoding and storing with prestissimo.In practical application, suspend the running of this synchronization mechanism and decode with prestissimo and provide great improvement to decoding speed, in general, the highest decoding speed can make the decoded result of digital television system can catch up with the instant crossfire that receives in the short time in the utmost point up to 3 to 4 times with the difference of general decoding speed.After the decoded result of digital television system catch up with instant crossfire, that is T3 is in the time, can allow the voice image synchronizing signal be on, finishes the decoded result with the digital TV data of normal play second channel.
In one embodiment, the T2 time is handled the second channel digital television data that before are recorded in the storage device 107 at the beginning in a predetermined period of time.According to the specification that Digital Television is formulated, the digital TV data of per 0.5 second time must comprise at least one I frame, therefore this predetermined period of time can be made as 0.5 second, but be not in order to limit the present invention.
Second channel among Fig. 2 can be corresponding to record channel information relevant in the remote controller of this digital television system, for example the channel information that records of a specific button.Be example with controller shown in Figure 3 300, when the user watches first channel, if press a upwarding key 301 or a down Arrow 303 in the remote controller 300, just can switch to second channel.Upwarding key 301 or 303 corresponds to that channel and can be set up on their own by the user.And in another embodiment, first channel and this second channel can be simultaneously corresponding to a specific button of a remote controller of digital television system.For instance, first channel and second channel are two channels corresponding to the return key 305 in the remote controller 300, and the user can use return key 305 and constantly switch between first channel and second channel.
According to aforesaid embodiment, can obtain a digital TV data processing method.Fig. 4 has illustrated the flow chart of digital TV data processing method according to an embodiment of the invention.As shown in Figure 4, it has comprised the following step:
Switching channels (as shown in Figure 2, switching to second channel from first channel).
Making voice image synchronizing signal is off.
The image data of the digital TV data that handle to store with maximal rate (be example with Fig. 2, the second channel digit image data data that store in the storage device 107 in the T2 time range in the high-speed decoding T1 time range).
Handle the image data of the digital TV data of follow-up reception with maximal rate, to produce an image-decoding result.
Judge whether this image-decoding result catch up with instant crossfire, if then arrive step 411 with the normal speed decoding, then get back to step 407 if not.
Decode with normal speed.
Making voice image synchronizing signal is On, and beginning simultaneous voice data.
The normal play digital television program comprises image and voice.
Aforesaid digital TV data processing method can be used in the digital television system shown in Figure 1, but does not limit.
By aforesaid embodiment, can solve pre-recorded image and broadcast fast at the neutral gear of the digital TV data of handling institute's switching channels, and then play the digital television program of institute's switching channels normally, the not smooth sense during with the reduction switching channels.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (18)
1. a digital TV data processing method is applied to a television broadcasting system, and this television broadcasting system receives the digital TV data that is relevant to a plurality of channels simultaneously, and this digital TV data processing method comprises:
When (a) playing one first channel digital television data corresponding to one first channel, store one second channel digital television data, it is corresponding to one second channel, and wherein, these second channel digital television data comprise a speech data and an image data;
(b) switch to when playing this second channel from this first channel, begin decoding with one first speed from this image datas of these second channel digital television data of before being stored; And
(c) after decoding catch up with instant second channel digital television data corresponding to this second channel, with this image data of this second channel digital television data of a second speed decode successive, and play a corresponding instantaneous decoding result;
Wherein, this first speed is higher than this second speed.
2. digital TV data processing method as claimed in claim 1 is characterized in that, also comprises:
In step (b), suspend a running of mechanism synchronously, this synchronization mechanism is used for this speech data and this image data of these second channel digital television data synchronously; And
In step (c), the running that recovers this synchronization mechanism.
3. digital TV data processing method as claimed in claim 1, it is characterized in that, the time information that also comprises image data in these second channel digital television data, step (c) utilize this time information to judge whether decoding catch up with the instant second channel digital television data corresponding to this second channel.
4. digital TV data processing method as claimed in claim 1 is characterized in that, this first channel and this second channel are corresponding to same frequency.
5. digital TV data processing method as claimed in claim 1, it is characterized in that, store these the second channel digital television data in the predetermined period of time in step (a), these second channel digital television data that store in this predetermined period of time have a particular type of frame.
6. digital TV data processing method as claimed in claim 5, it is characterized in that, decoding step in the step (b) produces an image-decoding result, this image-decoding result comprises a start frame that should particular type of frame, utilizes this particular type of frame to carry out subsequent decoding for step (b) and step (c).
7. digital TV data processing method as claimed in claim 1 is characterized in that, step (b) also comprises selectivity and plays a frame that produces corresponding to the decoded back of these second channel digital television data that are stored.
8. digital TV data processing method as claimed in claim 1 is characterized in that, also comprises: record viewed number of times or the time of channel, to produce user's behavior parameter; And determine this second channel according to this user's behavior parameter.
9. digital TV data processing method as claimed in claim 1 is characterized in that, this second channel is corresponding to a record channel information relevant in the remote controller of this digital television system.
10. digital television system comprises:
One image-decoding device;
One control unit; And
One storage device; Wherein, this control unit is stored to this storage device with the digital TV data of one second channel when the one first channel digital television data play corresponding to one first channel, and these second channel digital television data comprise a speech data and an image data; When switching to this second channel from this first channel, this image-decoding device begins decoding with one first speed from this image datas of these second channel digital television data of before being stored, after decoding catch up with instant second channel digital television data corresponding to this second channel, with this image data of this second channel digital television data of a second speed decode successive; This control unit is also controlled this digital television system and is play a corresponding instantaneous decoding result; And this first speed is higher than this second speed.
11. digital television system as claimed in claim 10, it is characterized in that, this control unit also suspends a running of mechanism synchronously, after catching up with instant second channel digital television data corresponding to this second channel to the decoding of this image-decoding device, just recover the running of this synchronization mechanism, this synchronization mechanism is used for synchronously this speech data and this image data of these second channel digital television data.
12. digital television system as claimed in claim 10, it is characterized in that, the time information that also comprises image data in these second channel digital television data, this control unit utilize this time information to judge whether decoding catch up with the instant second channel digital television data corresponding to this second channel.
13. digital television system as claimed in claim 10 is characterized in that, this first channel and this second channel are corresponding to same frequency.
14. digital television system as claimed in claim 10, it is characterized in that, these second channel digital television data in this storage device stores one predetermined period of time, these second channel digital television data that store in this predetermined period of time have a particular type of frame.
15. digital television system as claimed in claim 14, it is characterized in that, this image-decoding device produces an image-decoding result with the decoding step of this first speed decoding, this image-decoding result comprises a start frame that should particular type of frame, utilizes this particular type of frame to carry out subsequent decoding for this image-decoding device.
16. digital television system as claimed in claim 10, it is characterized in that, before the decoding of this image-decoding device caught up with instant second channel digital television data corresponding to this second channel, this control unit selectivity was play a frame that produces corresponding to the decoded back of these second channel digital television data that are stored.
17. digital television system as claimed in claim 10 is characterized in that, this control unit initiatively records the viewed number of times of channel or time, and producing user's behavior parameter, and this control unit determines this second channel according to this user's behavior parameter.
18. digital television system as claimed in claim 10 is characterized in that, also comprises a remote controller, wherein this second channel is to a relevant record channel information in should remote controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100746183A CN103327395A (en) | 2012-03-20 | 2012-03-20 | Digital television data processing method and digital television system using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100746183A CN103327395A (en) | 2012-03-20 | 2012-03-20 | Digital television data processing method and digital television system using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103327395A true CN103327395A (en) | 2013-09-25 |
Family
ID=49195882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100746183A Pending CN103327395A (en) | 2012-03-20 | 2012-03-20 | Digital television data processing method and digital television system using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103327395A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101123717A (en) * | 2007-09-25 | 2008-02-13 | 中兴通讯股份有限公司 | A device and method for quick switching of channels |
| US20090241163A1 (en) * | 2008-03-21 | 2009-09-24 | Samsung Electronics Co. Ltd. | Broadcast picture display method and a digital broadcast receiver using the same |
| CN101563924A (en) * | 2006-12-20 | 2009-10-21 | 英特尔公司 | Method and apparatus for switching program streams using a variable speed program stream buffer coupled to a variable speed decoder |
| CN101569182A (en) * | 2006-12-20 | 2009-10-28 | 英特尔公司 | Method and apparatus for switching program streams using a fixed speed program stream buffer coupled to a decoder |
-
2012
- 2012-03-20 CN CN2012100746183A patent/CN103327395A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101563924A (en) * | 2006-12-20 | 2009-10-21 | 英特尔公司 | Method and apparatus for switching program streams using a variable speed program stream buffer coupled to a variable speed decoder |
| CN101569182A (en) * | 2006-12-20 | 2009-10-28 | 英特尔公司 | Method and apparatus for switching program streams using a fixed speed program stream buffer coupled to a decoder |
| CN101123717A (en) * | 2007-09-25 | 2008-02-13 | 中兴通讯股份有限公司 | A device and method for quick switching of channels |
| US20090241163A1 (en) * | 2008-03-21 | 2009-09-24 | Samsung Electronics Co. Ltd. | Broadcast picture display method and a digital broadcast receiver using the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4261893B2 (en) | Information processing apparatus and information processing method | |
| US8407737B1 (en) | Systems and methods for providing a scan transport bar | |
| CN104166547B (en) | A kind of control method and device of channel | |
| CN104104990B (en) | Adjust the method and device of subtitle in video | |
| KR20160010507A (en) | Method and apparatus for processing video images | |
| CN109587570B (en) | Video playing method and device | |
| CN103607657A (en) | Method and device for realizing picture-in-picture playing function | |
| CN103338407A (en) | Television set and television set channel browsing method | |
| KR20090090600A (en) | Fast adaptive channel converting method and apparatus thereof, and computer readable stroing medium to perform the method | |
| CN103283252A (en) | Program information notification device, television receiver, program information notification method, program information notification program, and recording medium | |
| CN101651798B (en) | Electronic picture frame and method for TV program prompting and quick broadcasting | |
| CN106899870A (en) | A kind of VR contents interactive system and method based on intelligent television and mobile terminal | |
| CN103618934A (en) | Method and device for displaying program control menus in smart television | |
| CN102025930A (en) | Digital television receiving device and screenshot method thereof | |
| CN103024513B (en) | A kind of method of Digital Television fast channel switching | |
| CN101207757B (en) | Multi-picture recording TV set and display method thereof | |
| CN103686167A (en) | Multi-stream broadcast method and device | |
| CN101547327A (en) | Window television | |
| CN101911677B (en) | Apparatus and method for searching broacasting channel | |
| JP2010044776A (en) | Method for modifying user interface of consumer electronic apparatus, corresponding apparatus, signal, and data carrier | |
| CN1997126A (en) | An implementation method of interactive interface of time shift TV | |
| CN102223511B (en) | Television program recording and broadcasting method and system, and television device | |
| US10313736B2 (en) | Video electronic programming guide | |
| US20130229575A1 (en) | Digital TV Data Processing Method and System Thereof | |
| CN103327395A (en) | Digital television data processing method and digital television system using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130925 |