CN1791195A - Digital television frequency channel control device and method - Google Patents
Digital television frequency channel control device and method Download PDFInfo
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- CN1791195A CN1791195A CNA2004101004063A CN200410100406A CN1791195A CN 1791195 A CN1791195 A CN 1791195A CN A2004101004063 A CNA2004101004063 A CN A2004101004063A CN 200410100406 A CN200410100406 A CN 200410100406A CN 1791195 A CN1791195 A CN 1791195A
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Abstract
The invention relates to improve channel conversion efficiency for digital TV, which comprises a tuner, a memory, a screen display generation part to set menu of order box or others, a demultiplexer, a detection part to detect whether sound special channel in broadcast signal separated by demultiplexer, a control part to control menu set according to whether setting menu in order box by user on picture if existing sound special channel, and a image signal treatment part. This invention is convenient to let user select need channel.
Description
Technical field
The present invention relates to a kind of image display, particularly about digital TV channel control device and method.
Background technology
TV tech develops in image display in recent years, and the pattern that transmits broadcast singal in TV tech is also in development.Along with the development of broadcast singal transfer mode, more and more higher to the concern of the Digital Television of using the digital delivery pattern.
And, along with the accelerated development of digital broadcasting, via satellite/broadcasting of high-quality picture/high tone qualities such as surface wave/wired broadcasting, have many strong points.Compare with existing simulated television, the strong point that Digital Television had is not only high-quality screen, high-quality tonequality, and is the service function of utilizing diversified additional information.
In digital broadcasting, video be to use the 2nd generation video compression standard be the MPEG2 standard, audio frequency is to use audio coding AC-3 compact model.This compressed information by existing satellite/terrestrial ripple/wired broadcasting frequency band, is utilized the transfer mode of Quadrature Phase Shift Keying QPSK/ residual sideband VSB/ quadrature amplitude modulation QAM etc., is sent to each user.
This compress technique can provide diversified service.For using surface wave, to a channel, the above channel of 4 channels that can broadcast standard resolution SD level, and high-resolution HD provides 1 channel.Meanwhile, for diversified service is provided in Digital Television TV, normally additional information and video/sound signal are together transmitted.Utilize these additional informations, can provide as service continuous expansion and broadcasting guide channel information.
As what relate in front, digital video is to use the MPEG2 standard, supports 18 forms substantially; And digital audio adopts audio coding AC-3 specification and use as specification with the figure pattern of develop rapidly.As the system specification, support program service information protocol PSIP (Program Service InformationProtocol) specification, and support large and small channel, video audion system and other details etc. of current program.
Digital system is to be formed by video, audio frequency, additional information and channel information etc., and transmits with the pattern of demultiplexing.Therefore receiver is to the information of demultiplexing, carry out multiple shunt with the specification that is suitable for stipulating after, reconstruct video, audio frequency, additional information etc.
Below, with reference to accompanying drawing, the formation of general Digital Television is described as follows.
Fig. 1 is the formation block diagram of general Digital Television.
General Digital Television is to be made of following part as shown in Figure 1: the broadcast singal that will receive by antenna, carry out tuning tuner (101) according to customer requirements; Channel decoders (102) that will tuning channel is deciphered in tuner (101); From channel decoders (102), receive the broadcast singal of decoding channel, and this received signal is separated into demultplexer (103) demultplexer of image, sound and additional information; Receive the voice signal that separates from demultplexer (103), and this received signal is treated to the sound signal processing portion (104) that can be provided with by the signal that loud speaker (105) can export; The picture signal that reception separates from demultplexer (103), and this received signal is treated to the signal that can show and the picture signal handling part (106) that is provided with in display part (107); Control part (108) according to customer requirements output control signal; According to the control of control part (108), the storage part (109) that the various information of separating for storage demultplexer (103) are provided with.
As follows to action specification as the TV of above-mentioned formation.
The broadcast singal that receives by tuner (101) is with image information, acoustic information and additional information, transmit after forming the form that transmits stream, this situation can be regarded as the set of each self-forming of image, sound and additional information with the form of the packetized elementary stream PES (Packetized Elementary Stream) of 188 bits.
As above-mentioned, the information that transmits the stream form be input to demultplexer (103), and distinguish by transmitting the stream kind; Information on services forms data base system through the analytic process of screening of follow procedure section and syntactic analyser; And this database provides program as graphical user interface etc. to the user.And image and acoustic information stream after being restored by video compression standard MPEG are exported image and acoustic information.
As above-mentioned, to the Digital Television transfer process, exist diversified broadcast mode from simulated television.In diversified broadcast mode, one of them is to have video information hardly, but has the sound dedicated channel that forms with acoustic information.Here it is in actual channel, the pattern of utilizing the little channel of dozens of to broadcast various acoustic informations.
That is, all kinds are broadcasted by channel as picture out picture POP, ballad, original music monograph OST diversified sound accompaniments such as (Original SoundTrack).In other words, because video information transmits (only transmitting title) hardly, so in an actual channel, can have dozens of audio frequency channel.
Therefore, when in the above-mentioned channel that has video hardly, having the audio frequency dedicated channel, there is dozens of audio frequency channel usually in this channel.If the audiovisual user does not know to exist such multichannel in advance, when then this actual channel is transformed into next actual channel, be accompanied by many inconveniences.And, also exist the inconvenience that audiovisual behind each channel just can be known this channel content is set one by one.
Summary of the invention
The present invention develops for the problem that solves above-mentioned existence, its objective is in the sound dedicated channel, for channel switch and reception acoustic information, improves the conventional art inconvenience of limit converted channel limit audiovisual one by one.Even another object of the present invention is or not the sound dedicated channel, but, also can improve channel switch efficient to there being the situation of the little channel of dozens of in the actual channel, and to providing convenience property of user.
The present invention is achieved in that the channel control apparatus of Digital Television in order to achieve the above object, it comprises tuner and memory, it is characterized in that it also comprises following part: for the menu of setting program request (Juke) box and set other menu screen, produce the screen display OSD generating unit of screen display OSD pattern; In the broadcast singal that receives by tuner, the demultplexer that is provided with for separate picture signal, voice signal and additional information; In the broadcast singal by the demultplexer separation, whether there is the test section that is provided with for detecting the sound dedicated channel; After the information that detects in the test section stored in storage part, if there is the sound dedicated channel in testing result in test section, then on the picture that the user produces by screen display OSD generating unit, the control part that comes Control-Menu to set according to the menu of whether having set program request box (Juke); During according to the control signal converted channel of control part, for picture signal that will input is treated to the signal that can show or signal that program request (Juke) box menu can be shown and the picture signal handling part that is provided with on picture.
The channel control apparatus of above-mentioned Digital Television also comprises a storage part that is provided with for the information of storing the test section detection.
In order to achieve the above object, the channel control method of Digital Television of the present invention, the channel control method that it is characterized in that having the Digital Television of tuner and screen display OSD generating unit was made up of the following stage: whether if the user has imported channel change command, then analyzing the channel information that switches is the judgement stage of sound dedicated channel; If judged result, judges so whether the user is provided with the judgement stage of program request (Juke) box menu for being the sound dedicated channel; If judged result is provided with program request (Juke) box menu for the user,, carry out the demonstration stage with the form of program request (Juke) box then with the channel that comprises in the sound dedicated channel; The user carries out the control stage with reference to displaying contents with the sound dedicated channel of selecting.
Whether above-mentioned is that judgement stage of sound dedicated channel is to judge whether not have picture signal in channel, only has the stage of voice signal channel.
Above-mentioned with the channel that comprises in the sound dedicated channel, carrying out the demonstration stage with the form of program request (Juke) box is in having the sound dedicated channel, the stage that main channel and little channel are shown with the matrix form of regulation.
Above-mentionedly the sound dedicated channel of selecting is carried out the control stage forms by the following stage: showing on program request (Juke) the box picture, with on the cursor/down/left/move right and select channel stage of wishing; Put if the user has selected to jump, then under the situation of not cancelling the sound dedicated channel, switch with other image channel.
If the channel behind above-mentioned the switching is not the sound dedicated channel, then also comprise one according to the channel switch situation, image and voice signal are all carried out output stage.
If above-mentioned in the sound dedicated channel user do not set program request (Juke) box pattern, then also comprise a channel change command according to user input, carry out from main channel to little channel the channel that switches being carried out the demonstration stage after channel switches.
The channel control apparatus of Digital Television of the present invention and method have following effect:
The first, for the sound dedicated channel, in fact the present invention provides the channel more than 50, and with the channel more than 50, constitutes screen display OSD with program request (Juke) box of matrix form, so the user can select the channel of oneself wishing more easily.
The second, if having selected to jump, the user puts order, basis is not to cancel the sound dedicated channel so, but cancels its later channel condition, selects the channel of oneself wishing.
The 3rd, except the sound dedicated channel, also can be applied on the channel that has many little channels, therefore the convenience that provides the user to use.
Description of drawings
Fig. 1 is the formation block diagram of general TV.
Fig. 2 is that the channel control apparatus of Digital Television of the present invention constitutes block diagram.
Fig. 3 is the channel control method flow chart of Digital Television of the present invention.
Fig. 4 is the channel control method instance graph of Digital Television of the present invention.
As follows to accompanying drawing major part symbol description:
101: tuner 102 channel decoders
103: demultplexer 104: sound signal processing portion
105: raise one's voice 106: the picture signal handling part
107: display part 201: test section
202: control part 203: memory
204: screen display OSD generating unit
Embodiment
Below, with reference to accompanying drawing, the channel control apparatus and the method for Digital Television of the present invention is described as follows.
Fig. 2 is the channel control apparatus block diagram of Digital Television of the present invention; Fig. 3 is the channel control method flow chart of Digital Television of the present invention; Fig. 4 is the control method instance graph of Digital Television of the present invention.
The channel control apparatus of image display of the present invention as shown in Figure 2, it is to be made of following part: the broadcast singal that receives by antenna, and carry out tuning tuner (101) according to customer requirements; The channel decoders (102) that tuning channel is deciphered in tuner (101); In channel decoders (102), receive the broadcast singal of decoding channel, and this input signal is separated into the demultplexer (103) of image, sound and additional information; The voice signal that from demultplexer (103), receive to separate, and this input signal is treated to the sound signal processing portion (104) that the signal that can export by loud speaker (105) is provided with; From demultplexer (103), receive the picture signal of separating, and this input signal is treated to the signal that can show and the picture signal handling part (106) that is provided with on display part (107); From demultplexer (103), receive image, sound and the additional information of separating, and for detecting the test section (201) that the sound dedicated channel is provided with; Detect the sound dedicated channel by test section (201), and, if the user has set the menu of program request (Juke) box, then according to the setting situation, for the sound dedicated channel can be shown with the form of program request (Juke) box, it is controlled, situation about showing simultaneously with reference to control, the channel of selecting for the user can be selected and the control part (202) controlled; According to the control signal of control part (202), in order to set the various menus of program request (Juke) box menu or other settings, with the screen display OSD generating unit (204) of screen display OSD mode producing; For storage separates the memory (203) that various information are provided with from demultplexer (103).
As follows to action specification as the channel control apparatus of above-mentioned Digital Television.
By the broadcast singal of tuner (101) reception with the form transmission of signal flow; The channel broadcasting signal of decoding is separated into image, sound and additional information by demultplexer (103) in channel decoders (102).
Program service information protocol PSIP (Program Service Information Protocol) can be understood as the set of the various particular element tables formations of digital television service usually.Program service information protocol PSIP packets of information in the digital stream of input, has with the program identification pid information stream of 0x1FFB and imports.The input of information flow is analyzed as can be known, and this information flow is that four kinds of tables constitute.
Four kinds of above-mentioned tables are the system time table STT (System Time Table) that constitute temporal information; Constitute the area grade table RRT (Rating Region Table) of class information by area classification; Main guide table MGT (Master Guide Table) with program identification pid information of the Event Information Table EIT (Event Information Table) that constitutes each program detail information; Also have, constitute virtual channel table VCT (Virtual Channel Table) in the radio frequency channel actual data information.
Therefore, the analytic process to program service information protocol PSIP data flow is described as follows
At first, system finds out has program contacts list PAT information flow, and these data are transmitted control part formation table; After constituting program contacts list pat table, in information flow with 0x1FFB address, find out virtual channel table VCT (Virtual Channel Table) after, whether the information of distinguishing current input is program service information protocol PSIP.Then, constitute Event Information Table EIT after finding out the information flow that constitutes Event Information Table EIT.
On the contrary, the information flow made from video compression standard MPEG2 specification is to be made of following table: the program contacts list PAT (Program Association Table) with program map table program identification pid information; The program map table PMT (ProgramMap Table) that in current radio frequency channel data stream, comprises with programme information; Also have, have the formations such as Event Information Table EIT of each program detail information.
That is, image, sound and additional information stream by demultplexer (103) separates are input to test section (201), and virtual channel table VCT are carried out syntactic analysis with syntactic analyser.Carry out syntactic analysis by virtual channel table VCT and obtain program identification pid information, and utilize the program identification pid information corresponding to image, sound and additional information, can separate picture, sound and additional information.
At this moment, if the channel by channel decoders (102) decoding is the sound dedicated channel, then there is not image programs identification pid information in test section (201) testing result, only there is sound programme identification pid information, for the channel that carries out this channel faster switches, can select program request (Juke) kit function so.
That is,, then when user's switching channels, in the sound dedicated channel,, picture is shown as shown in Fig. 4 if the user has selected program request (Juke) kit function.At this moment, the user has selected to jump puts order, does not then cancel the sound dedicated channel and is transferred to next channel.
If do not jumping to one's heart's content audiovisual sound dedicated channel under the condition, then in the sound dedicated channel among the Event Information Table EIT, the image of program request (Juke) the box-like attitude that forms after the syntactic analysis is carried out in utilization to the information among the Event Information Table EIT, can limit audiovisual current broadcast information, the channel setting function is carried out on the limit.
As said method, not only can be applied on the sound dedicated channel, and, also can be applied on reality (Physical) channel with very how little channel.
To digital TV channel control method of the present invention, be described as follows with reference to Fig. 3: at first, if imported the power connection order, then the channel that the user is selected carries out tuning (S101 ∽ S102).
And, judge whether the user has imported channel change command (S103).
Then, if above-mentioned judged result (S103) user has imported channel change command, judge so whether the channel that switches is sound dedicated channel (S104).
If above-mentioned judged result (S104) then switches to the channel of hope for the channel that switches is not the sound dedicated channel, and the image and the sound of the channel that switches exported (S105 ∽ S106).
In addition, if the channel that above-mentioned judged result (S104) is switched is the sound dedicated channel, judge whether to have set program request (Juke) box pattern (S107) so.
Then, if above-mentioned judged result (S107) is provided with program request (Juke) box pattern, all channels of then corresponding sound dedicated channel, the screen display OSD pattern with program request (Juke) box-like attitude shows (S108).
Then, the user has judged whether to import the order (S109) that jumping is put on the screen display OSD that is shown.
Then, put order, after the sound dedicated channel carries out redirect so, it is switched to other channels and the channel that switches is shown (S110 ∽ S111) if judged result (S109) is jumped for the user has imported.
In addition, do not put order, then control sound dedicated channel (S113) according to program request (Juke) box adjusted if above-mentioned judged result (S109) user imports to jump.
And, if above-mentioned judged result (S107) is the sound dedicated channel, but do not set program request (Juke) box pattern, then channel is switched one by one, and the channel that switches is shown (S114 ∽ S115) according to user's input.
Then, the user imports the power-off order, then finishes (S112).
As above-mentioned, be the starting point to be placed on digital broadcasting can transmit many little channels to an actual channel this point develop based on the channel device and method of Digital Television of the present invention.To the sound dedicated channel, provide and have as program request (Juke) box function, the user can on program request (Juke) the box picture with cursor on/down/left side/right side moves, so the user more easily selects the channel of own hope, thereby the convenience in the use is provided.And,, and, also can set program request (Juke) kit function to there being the channel of many little channels not only to the sound dedicated channel.
Claims (7)
1. the channel control apparatus of Digital Television, it comprises tuner and memory, it is characterized in that it also comprises following part:
For the menu of setting program request (Juke) box and set other menu screen, produce the screen display generating unit of screen display mode;
In the broadcast singal that receives by tuner, the demultplexer that is provided with for separate picture signal, voice signal and additional information;
In the broadcast singal by the demultplexer separation, whether there is the test section that is provided with for detecting the sound dedicated channel;
After the information that detects in the test section stored in storage part, if there is the sound dedicated channel in testing result in test section, then on the picture that the user produces by the screen display generating unit, the control part that comes Control-Menu to set according to the menu of whether having set the program request box;
During according to the control signal switching channels of control part, for picture signal that will input is treated to the signal that can show or signal that program request box menu can be shown and the picture signal handling part that is provided with on picture.
2. the channel control method of Digital Television is characterized in that in the Digital Television with tuner and screen display generating unit, its channel control method was made up of the following stage:
Whether if the user has imported channel change command, then analyzing the channel information that switches is the judgement stage of sound dedicated channel;
If judged result, judges so whether the user is provided with the judgement stage of program request box menu for being the sound dedicated channel;
If judged result is provided with program request box menu for the user,, carry out the demonstration stage with the form of program request box then with the channel that comprises in the sound dedicated channel;
The user carries out the control stage with reference to displaying contents with the sound dedicated channel of selecting.
3. the channel control method of Digital Television according to claim 2, whether be the judgement stage of sound dedicated channel be judge whether in channel do not have picture signal, only have the judgement stage of voice signal channel if it is characterized in that above-mentioned.
4. the channel control method of Digital Television according to claim 2, it is characterized in that it is in having the sound dedicated channel that the above-mentioned channel with being comprised in the sound dedicated channel carries out the demonstration stage with the form of program request box, the stage that main channel and little channel are shown with the matrix form of regulation.
5. the channel control method of Digital Television according to claim 2 is characterized in that the above-mentioned sound dedicated channel with selecting carries out the control stage and is made up of the following stage:
Showing on the program request box picture, with on the cursor/down/left side/move right and select channel stage of wishing;
Put if the user has selected to jump, then under the situation of not cancelling the sound dedicated channel, switch with other image channel.
6. the channel control method of Digital Television according to claim 2 if it is characterized in that the channel behind above-mentioned the switching is not the sound dedicated channel, then also comprises one according to the channel switch instances, the stage that image and voice signal are all exported.
7. the channel control method of Digital Television according to claim 2, do not set program request box pattern if it is characterized in that above-mentioned user in the sound dedicated channel, then also comprise a channel change command according to user's input, carry out after channel switches the stage that the channel that switches is shown from main channel to little channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101004063A CN100373934C (en) | 2004-12-17 | 2004-12-17 | Digital television frequency channel control device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101004063A CN100373934C (en) | 2004-12-17 | 2004-12-17 | Digital television frequency channel control device and method |
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| Publication Number | Publication Date |
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| CN1791195A true CN1791195A (en) | 2006-06-21 |
| CN100373934C CN100373934C (en) | 2008-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004101004063A Expired - Fee Related CN100373934C (en) | 2004-12-17 | 2004-12-17 | Digital television frequency channel control device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101149631B (en) * | 2006-09-20 | 2012-03-07 | 鸿富锦精密工业（深圳）有限公司 | Display for spectrum display |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19548957C2 (en) * | 1994-12-28 | 1999-12-16 | Lg Electronics Inc | Automatic channel search procedure for a television receiver |
| KR100317629B1 (en) * | 1997-06-30 | 2002-04-24 | 윤종용 | How to Display Subchannel Information on a Digital Television Receiver |
| BR9912282A (en) * | 1998-07-20 | 2001-05-08 | Canal Plus Sa | Navigation system for a multichannel digital television system |
| US6714264B1 (en) * | 2000-08-31 | 2004-03-30 | Matsushita Electric Industrial Co., Ltd. | Digital television channel surfing system |
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