CN1941868B - TV channels switching method of same broadcasting and TV channel information - Google Patents
TV channels switching method of same broadcasting and TV channel information Download PDFInfo
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- CN1941868B CN1941868B CN200510100182A CN200510100182A CN1941868B CN 1941868 B CN1941868 B CN 1941868B CN 200510100182 A CN200510100182 A CN 200510100182A CN 200510100182 A CN200510100182 A CN 200510100182A CN 1941868 B CN1941868 B CN 1941868B
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Abstract
The associative list associates more than two TV broadcast channels; wherein, the associated channels have same program content; when user watches TV, he can read channel information through the associated channels, and switches the channel according to the associative information such that the user can select the signal source with best signal quality from multi signal sources.
Description
Technical field
The present invention relates to the broadcast TV channel management, the channel utilization contingency table that relates in particular to same program content in many covers television channel carries out the method that channel switches.
Background technology
At present, along with the development of technology, the especially development of digital broadcast television technology and universal, it is also more and more ripe technically to be used for moving the television broadcasting receiving device that receives.The radio and television receiving system is not only wanted can compatible traditional analog signal, also will adapt to new digital signal, simultaneously, also will consider receiving satellite signal, ground signal, and wire signal.In addition, along with the rise of mobile TV, the difference of the signal of different regions can make troubles to the user.Therefore, how in the unlike signal source, to find the program of oneself wanting, and select to broadcast; Can allow the user remove to select program when how watching program in the mode of oneself being familiar with in different areas; How keep institute's program of watching or channel constant or the like when watching moving, these all are present television channel management problem demanding prompt solutions.
Summary of the invention
The present invention provides a kind of contingency table of identical broadcasts television channel information, utilizes this contingency table, is convenient to the user and watches the own program of being liked according to the channel selection custom in the past.Purpose of the present invention comprises utilizes above-mentioned contingency table to carry out the method that channel switches.
Thinking of the present invention is: for the receive mode of the different TV signal of present existence, though that the reception of each signal is handled is variant, all need tuner to remove to select the needed program of user.In this multichannel radio and television receiving system, its program that may receive is diversified.For the same in other words channel of same set of program, or same program stream, might be sent out in many ways, as analog form, digital form perhaps sends with different frequencies, and is wired in addition, multiple send modes such as wireless and satellite.In other words, for this device, it can obtain same set of program in several ways.After the same set of program that these multiple modes send is associated, form a same program contingency table, be convenient to the user and therefrom select the programme signal of best in quality to watch.In order to set up above-mentioned contingency table, in the time of incipient, the user must search platform.For each passage or the information source that are installed on the receiving system, the user needs to carry out the search of program channel and produces a channel association table corresponding with this information source; If considering to move receives, then different regional different information sources is also inequality through the channel table that the search back produces, and uses extremely inconvenient like this for the user who has been accustomed to channel selection mode in the past (channel).
Comprise following channel information content in the contingency table of a kind of identical broadcasts television channel information of the present invention: this contingency table is with two or more broadcast TV channel associating informations, form incidence relation, the associated programme content that two or more broadcast TV channel comprised is identical.
Wherein, described two or more broadcast TV channels be the radio and television receiving system in different geographic areas, received under the perhaps different information source modes.This information source mode can be one or more in wire signal, ground signal or the satellite-signal.
All channels in the contingency table have identical programme content, and the characteristic that this programme content is identical can be judged artificially by the identification of user according to image or voice signal; Also can judge automatically according to the identifying information in the broadcast TV channel information by CPU.
Above-mentioned contingency table can also can leave in the outside removable memory by broadcast television signal or the Internet issue.
The method that adopts contingency table of the present invention to carry out the channel switching comprises the steps: channel of (1) selection; (2) select to exist another channel of incidence relation by identical broadcasts television channel information contingency table with the selected channel of step (1), and switch to this channel, wherein, the programme content that two or more broadcast TV channel comprised with incidence relation is identical.
Wherein, step (2) can carried out under following two kinds of situations: a, when the information relevant with emission stop signal that is comprised in the broadcast television signal that this receiving system receives changes, and the prompting user carries out or system carries out the channel handover operation of step (2) automatically; B, when this receiving system learns that by certain mode current actual position information changes, the prompting user carries out or system carries out the channel handover operation of step (2) automatically.
Under second kind of situation, current actual position information is by obtaining with mobile communication network or global positioning system communication.
Under second kind of situation, current actual position information is by obtaining with mobile communication network or global positioning system communication.
In addition, carrying out above-mentioned channel when switching,, after the selected broadcast of the channel in the contingency table, still keep previous channel to show on its display screen in order to cooperate user's operating habit.
Adopted method of the present invention, the user not only can be under the situation of plurality of information resources coexistence, can therefrom select the best information source of signal quality to watch, and, in the process that move to receive, can therefrom find by the custom of oneself and oneself want the program seen or user's the process of watching is not interrupted by automatic switchover.In addition, this contingency table can be edited by user oneself, and broadcast television signal carries, or multiple mode such as the Internet obtains, and is user-friendly to.
Description of drawings
Fig. 1 is a multipath radiovisor schematic diagram,
Fig. 2 is the digital television receiving apparatus schematic diagram,
Fig. 3 is the channel association table pie graph of first kind of execution mode,
Fig. 4 is the channel association table pie graph of second kind of execution mode,
Fig. 5 is the channel association table pie graph of the third execution mode,
Fig. 6 is the association generation method user interface of first kind of execution mode,
Fig. 7 is that the association of first kind of execution mode generates method flow diagram,
Fig. 8 is the association generation method user interface of second kind of execution mode,
Fig. 9 is that the association of second kind of enforcement generates method flow diagram,
Figure 10 is the schematic diagram that the multi-channel broadcast Tv signal receives,
Figure 11 is the schematic diagram that the multi-channel broadcast Tv signal moves reception,
Figure 12 is multi-channel broadcast Tv signal flow chart because of change in signal strength automatically switching channels or program stream when receiving,
When being the reception of multi-channel broadcast Tv signal, Figure 13 changes the flow chart of automatically switching channels or program stream because of the geographical position,
To be receiving system obtain the flow chart of contingency table from broadcast television signal to Figure 14,
Figure 15 is receiving system obtains contingency table from the Internet a flow chart.
Embodiment
Describe technical scheme of the present invention in detail below in conjunction with the drawings and specific embodiments.
This multipath radiovisor schematic diagram at first is described.As shown in Figure 1, this system comprises frequency modulation, amplitude modulation broadcasting at all existing broadcast television signals, cable TV signal, and terrestrial television signal, satellite TV signal, analog signal, digital signal, or the like.All these broadcast television signals obtain intermediate-freuqncy signal through behind digital tuners, and intermediate-freuqncy signal is delivered to decoder after by demodulation, is input to the rear end then.Since the difference of signal, the tuner that different signal demands is different, demodulator, and decoder.For traditional simulated television, digital tuner is tuning by microcontroller MCU control, and the composite video signal of tuning generation drives by the picture tube outputting video signal through the space field, and audio signal is exported by loud speaker.In microcontroller MCU, there is TV software driven by program whole TV system in the ROM memory with operate as normal, memory E
2Some relevant settings that have tuning data and this channel of each channel among the PROM, during television program search, with all channel information records, and set up same channel information, same channel information has certain identical characteristic, can be shown on the display interface jointly, and above-mentioned channel information is stored in E as basic data
2Among the PROM.Remote controller is used for sending guidance command to the television reception treatment system, and this system receives after the remote control command and correct response simultaneously.For the channel switching control information of television set, MCU reads E
2Channel information among the PROM, and show its associated channel information simultaneously; The user selects channel according to the needs of oneself from the channel that is associated, after confirming, TV switches automatically.
For its schematic diagram of digital television module as shown in Figure 2, this module also comprises MCU, tuner, E
2PROM etc.MCU, E
2Control by the I2C bus between PROM and the tuner.At E
2There are some relevant settings of tuning data and this channel of each channel in the PROM.
For satellite TV signal, (11.7～12.75GHz) digital signals are after the receiving system antenna receives the descending Ku wave band of satellite repeater, in receiver outdoor unit low noise box (LNB), be converted into first intermediate-freuqncy signal of 950～2050MHz, present tuner to the receiver indoor unit, tuner is converted to the digital signal of selected channel well second intermediate-freuqncy signal of 479.75MHz, demodulate I and Q two paths of signals through qpsk demodulator, then, present decoder, deliver to back-end processing after decoding is finished to receiver.
As noted earlier, each Signal Processing mode is variant, but all needs tuner to remove to select the needed program of user.After the same set of program that these multiple modes send is associated, form a same program contingency table, select to watch for the user.Need to prove that here the contingency table of indication of the present invention comes down to a kind of incidence relation, its both can be a plurality of same program content channel by pointer or the storage gauge outfit with the virtual mode association, also can be a plurality of same channel actual storage together.
In order to set up above-mentioned contingency table, in the time of incipient, the user must search platform.For each passage or the information source that are installed on the receiving system, the user needs to carry out the search of program channel and produces a channel table corresponding with this information source; If considering to move receives, then different regional different information sources is also inequality through the channel table that the search back produces.
The method of above-mentioned same channel association is diversified, and the present invention has enumerated following three kinds of modes here:
Fig. 3 is the contingency table pie graph of first kind of same channel or program stream.Here three tables have been comprised: channel table tabulation, channel list, same channel contingency table.Wherein, comprised the channel table of various information source or zones of different in the channel table tabulation, each channel table all has the numbering of a unique identification.In addition, the channel table tabulation has also comprised some attributes of each channel table, and its base attribute has title, affiliated area, as Shanghai, Beijing or certain user-defined virtual region, also has information source, as wired Digital Television, satellite, wired simulated television, FM broadcasting or the like.Channel list is used to deposit all channel informations, and as channel attribute etc., each channel all can have a unique number.In addition, also have the affiliated channel table numbering of this channel in the channel list, this channel table numbering is tabulated from channel table.The channel attribute kit contains channel frequency parameter, channel identification information and other useful informations such as S-SYSTEM, sound standard or the like, and in addition, different information source channel attributes also can be had any different.Also having a table is the same channel contingency table, comprises channel number, and this channel number also has the same channel numbering in addition from channel list, also is from channel list.Like this, for certain known channel, the channel number that comprises it, the attribute of subordinate channel table numbering and this channel has all been known, can know the information in pairing information source of this channel and zone by subordinate channel table numbering, by its channel number, we can find its pairing all same channel in the same channel tabulation, if the channel number of each the group data in the i.e. same channel tabulation is identical with known channel number, thereafter pairing same channel numbering is the same channel of this channel, should show to search for from the beginning to the end one time, just can obtain all same channel of this channel.From all same channel, select a channel number, obtain its subordinate channel table and channel attribute, inquire about channel table again and obtain its information source and area information by channel list, obtain these information after, just can switch.
Fig. 4 is the contingency table pie graph of second kind of same channel or program stream.The contrast first method, it has lacked the same channel contingency table.This method is put into same channel in the same channel numbering of channel list, has comprised all channel numbers identical with this channel in this, and also the fundamental sum first method is the same for corresponding switching mode.
The pie graph of the contingency table of the third same channel or program stream is simpler, and as shown in Figure 5, it only has a channel list, has comprised information such as information source, geographical position in its channel attribute item, also can finish same channel by these information and switch.
Above three kinds of schemes can realize the same channel association, mainly set forth here in first kind of mode.
Fig. 6 is a kind of scheme of the related setting of same channel with Fig. 7.Fig. 6 sets menu, and Fig. 7 is an operating process.Target channel is the channel of selecting, and other channel and its contrast see whether be its same channel.At first the selected target channel table is selected channel again, and during selection, displaying contents also and then changes, and finds same channel and show corresponding menu item from existing same channel contingency table.Behind the select target channel, select current channel and channel table again,, then be made as same channel, and be saved in the same channel contingency table if judge that current channel is identical with target channel.When menu just shows, target channel and target channel table, current channel and current channel table all are currencys.
Fig. 8 is the another kind of scheme of the related setting of same channel with Fig. 9, is primarily aimed to have the picture-in-picture function television receiver.Fig. 8 sets menu, and Fig. 9 is an operating process.Different with such scheme is that its target channel table and target channel are chosen in sprite, and current channel and current channel table are chosen in key frame.When menu just showed, target channel and target channel table were the set points of picture-in-picture, and current channel and current channel table are the set points of key frame.
Because the setting of the association of this same channel has been arranged, the user can be very easily removes to retrieve program under the different channel table according to the custom of oneself.What the user was accustomed to is above-mentioned target channel table.Generally speaking, system preserves the selection setting and the current channel table of target channel table.The target channel table is that user oneself sets, and the current channel table can be selected by user oneself, also can be detected by certain mode by system to obtain.When the user selects a channel, can be earlier from the target channel table, it is user's oneself custom, by the same channel contingency table of setting above, find its corresponding same channel under the current channel table, if there is not corresponding same channel, be benchmark then with the current channel table, be directly switch to this channel.Adopt this mode, the user can keep the watching habit of oneself.Certainly, also can not take this method, the channel that the user selects can utilize the setting of current channel table directly to switch.
The generation of same channel contingency table both can promptly generate by certain method on the broadcast television receiver in this locality, and it generates by above-mentioned establishing method to be stored in channel table information and the channel information on this receiver.But the present invention is not limited to this.Its reason mainly is the rise that move to receive, and the information in the area that we need will arrive receiving system is carried out advanced processing, and mobile reception can be carried out continuously.The same channel contingency table can be with all channel informations that can receive in certain zone, comprise wired, ground, satellite or the like is that the basis generates.Therefore, the contingency table of same channel also needs to obtain from the outside.After the outside mode that obtains can adopt the certain way editor to finish, by the Internet, perhaps by broadcast television signal, or mode such as computer copy issued, and also can be copy mutually between receiver and the receiver.Same channel contingency table information not only can be kept at the memory of receiver inside, can be external memory also, as flash disk, and storage card etc.
Figure 10 is that receiving system is fixed a scene when receiving.This receiving system need receive local can receive wired, ground and all broadcast television signals that satellite sent.Wired, ground, satellite respectively has a cover channel table, and the user can utilize the same channel contingency table of receiving system in the process of watching, switch back and forth among these three kinds of information sources, guarantees to watch with the custom of oneself oneself to want the program watched.
Figure 11 is that receiving system moves a scene when receiving.It can regard numerous fixedly reception scene as, and this receiving system need receive local can receive wired, ground and all broadcast television signals that satellite sent.Wired, ground, satellite respectively has a cover channel table, and the user can utilize the same channel contingency table of receiving system in the process of watching, switch back and forth among these three kinds of information sources, guarantees to watch with the custom of oneself oneself to want the program watched.
In addition, it can also be seen that the received signal change procedure of receiving system in the mobile receiving course from Figure 11.In the A point, receiving system is a no signal; In the B point, what receiving system received is the signal of terrestrial broadcast television transmitting station 1; In the C point, what receiving system received is the signal of satellite broadcasting television emission; In the D point, receiving system can receive the signal of terrestrial broadcast television transmitting station 2 and satellite broadcasting television emission simultaneously; In the E point, what receiving system received is the signal of terrestrial broadcast television transmitting station 2.In the process from A to E, its signal changes, and the process of watching is certain to be affected.Owing to had same channel contingency table and positional information, receiving system can change current channel table and switched to the same channel of setting according to the same channel contingency table.The scene that provides with Figure 11 is an example below, describes handoff procedure in detail.
In the time of incipient, the three cover channel tables of in receiving system, packing in advance, corresponding ground radio and television transmitting station 1 respectively, satellite broadcasting television, terrestrial broadcast television transmitting station 2.At this three covers channel table, as the target channel table, set up the same channel contingency table as target channel with CCTV-5 with terrestrial broadcast television transmitting station 1.The position of CCTV-5 in this three covers channel table is respectively 1,3,5.In the A point, receiving system is a no signal, in the process of advancing, receiving system can through one from no signal to the transition process that signal is arranged, surpass certain hour if be consecutively detected signal, then point out the user to switch or automatically switch.If the prompting user is switched, after the user confirms, then establish the channel table that the current channel table is a terrestrial broadcast television transmitting station 1, when the foreground number is 1.Continue to move ahead,, then think to have gone out the zone that terrestrial broadcast television transmitting station 1 is covered if no signal surpasses certain hour continuously.In traveling process, receiving system is all information sources of detecting constantly, and judge whether it has no signal.If several information sources have signal simultaneously, then select to switch according to priority level.Continue again to move ahead, enter the scope of satellite radio television signal, after having detected signal, point out the user to switch or automatically switch in the manner described above.In the D point,, need to select to switch according to the priority level of setting in advance owing to can there be the signal of terrestrial broadcast television transmitting station 2 and satellite broadcasting television emission simultaneously.Generally speaking, priority level is wired greater than wireless, high low of frequency greater than frequency, and the satellite-signal priority level is greater than ground signal, and the priority level of digital signal is greater than analog signal.Under the same condition, the information source that priority level is high is more preferentially selected to switch.
Because the change in geographical position can obtain in several ways, as the GPS navigation system, perhaps mobile communication system, or the like.Because the generation of digital broadcast television, it can carry relevant transmitting station in the data flow of its transmission information, this information is Unified coding, just can obtain current position information by discerning this sign indicating number, and compare with the positional information that is stored in the channel table, switch if assert identical just can the selection.Certainly, also can store this identification code in the channel table attribute, direct so relatively this sign indicating number just can judge whether current location is consistent with the current channel table.
The flow chart of judging according to signal strength signal intensity as shown in figure 12.At first detect the signal strength signal intensity of all of the port,, then from the same channel contingency table, find same channel and point out the user to switch according to certain rules if signal strength signal intensity is weak or do not have signal.If signal is strong, to judge further also whether information source changes, because signal possibility frequency is identical, but programme content may be different.This situation is rarely found under the situation of continuously detecting, because just considered this interference during planning.But the user may shut down in a period of time, and position, start back has become, so must judge, generally is at Digital Television, and simulated television lacks effective decision method.
The flow chart of judging according to the geographical position as shown in figure 13.At first detect the signal strength signal intensity of all of the port, current location information is obtained in while and external device communication, if the geographical position has changed, then finds same channel and point out the user to switch from the same channel contingency table according to certain rules.
Above-mentioned two kinds of methods also can be used in combination, and make dynamic switching more effective by the optimization of decision condition is set.
The front, source of same channel contingency table was mentioned, and accompanying drawing 14 is to decode to obtain channel table information and same channel related information in broadcast television signal, and receiving system carries out work according to the information of being obtained.
Accompanying drawing 15 is that receiving system carries out work according to the information of being obtained from the Internet download road table information and same channel related information.
The signal that signal that each broadcast television signal transmitting station can receive this area or neighboring region can receive is the basis, carry out channel table editor and same channel contingency table editor, send by electronic program guides after finishing, use for moving to receive.
Above-mentioned situation is several situations of the specific embodiment of the invention, be not intended that the invention be limited to above-mentioned implementation condition, every have goal of the invention of the present invention and the identical or similar situation of technical scheme, and do not deviate from thinking of the present invention, all is feasible.
Claims (6)
1. the channel fast switch over method of an identical broadcasts television channel information is characterized in that this method may further comprise the steps:
(1) all channel informations of search various information source, and aforesaid channel information stored;
(2) content that is comprised in the contrast channel information is carried out association with the data of same channel information, and is set up contingency table, is stored in E
2Among the PROM;
(3) select target channel;
(4) open contingency table, the same channel of select target channel;
(5) switch current channel according to selected same channel, and information source is switched to the setting of this channel.
2. the channel fast switch over method of identical broadcasts television channel information according to claim 1 is characterized in that contingency table includes channel list at least.
3. the channel fast switch over method of identical broadcasts television channel information according to claim 2 is characterized in that contingency table also includes same channel contingency table and channel table tabulation.
4. the channel fast switch over method of identical broadcasts television channel information according to claim 1 is characterized in that the described select target channel of step (3), is select target channel list and target channel.
5. the channel fast switch over method of identical broadcasts television channel information according to claim 4, it is characterized in that the described select target channel of step (3) after, refresh the tabulation of current same channel in real time.
6. the channel fast switch over method of identical broadcasts television channel information according to claim 1, it is characterized in that described switching current channel of step (5) and information source after, refresh the tabulation of current same channel in real time.
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| CN200510100182A CN1941868B (en) | 2005-09-30 | 2005-09-30 | TV channels switching method of same broadcasting and TV channel information |
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| CN200510100182A CN1941868B (en) | 2005-09-30 | 2005-09-30 | TV channels switching method of same broadcasting and TV channel information |
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| CN1941868B true CN1941868B (en) | 2010-05-26 |
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