CN101207752B - Method for user self-defining search of numeral household electrical appliance frequency channel - Google Patents
Method for user self-defining search of numeral household electrical appliance frequency channel Download PDFInfo
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Abstract
The invention discloses a user-defined searching method of a digital household electrical appliances channel, and the digital household electrical appliances receive NIT information sent by a TV station by the network; the method includes the following steps: an analyzing step, the NIT list is analyzed to get channel information; a display step, the channel information is displayed on a user interface of the digital household electrical appliances by a user-defined searching dialog box; a preview and selecting step, the channel that needs to be further searched is marked in the user-defined searching dialog box; a searching step, only the marked channel is searched. The searching method of the invention obtains all the channel information in the current network by utilizing the NIT list, and the channel information is quite comprehensive. The information is displayed on the user interface, the user can preview all channels and the program names contained by every channel in advance and the selective search can be carried out according to the information, thereby improving the direction of the search and the efficiency of the search.
Description
Technical field
The present invention relates to the digital video field, particularly relate to a kind of method for user self-defining search of numeral household electrical appliance frequency channel.
Background technology
In the prior art, generally be to carry out for the search of the program of numeral household electrical appliance frequency channel through the mode that the passage to appointment carries out program searching.In search, mainly obtain a digital TV channel data through network information table (NIT-Networkinformation table).The digital household appliances of user side receives SI (service information) from TV station, wherein comprises the information of NIT.Can know all channel informations on the current network from NIT information.Some searching methods though the Mean Speed of search significantly improves, need be searched for the program of all channels mostly at present.
For example publication number is " method of the quick program searching of a kind of digital television system receiving terminal " of CN200310116954.0, and the method for its disclosed quick search comprises: step 1, obtain the benchmark passage; The NIT table of step 2, parsing benchmark passage obtains the network channel configuration information; Step 3, according to channel configuration information, each passage is carried out program searching; Step 4, the program that searches is write the rendition list, accomplish program searching.
And the channel that the user need watch is often just wherein a part of, and all channels are searched for, and its search time is longer, has also increased the burden of system.
Summary of the invention
Problem to be solved by this invention is, a kind of method for user self-defining search of numeral household electrical appliance frequency channel is provided, and is not strong with the specific aim that overcomes existing numeral household electrical appliance frequency channel search, the shortcoming that search time is long.
To achieve these goals, the invention discloses a kind of method for user self-defining search of numeral household electrical appliance frequency channel, said digital household appliances receives the NIT information that TV station sends through network, comprises the steps:
Analyzing step is resolved said NIT table, to obtain channel information;
Step display is presented at said channel information on the user interface of said digital household appliances through a self-defined search dialogue;
Step is selected in preview, and demarcation needs the further channel of search in said self-defined search dialogue;
Search step is only searched for the channel of having demarcated.
Said channel information comprises the number of programs that comprises in channel number, channel, each channel, the programm name that each channel comprises.
Said analyzing step further comprises:
Read said channel number, the number of times that the said channel number that circulates is determined reads the programm name that the number of programs that comprises in said channel, the said channel, said each channel comprise successively, and is stored to an array.
Said analyzing step further comprises: resolve the NIT table of surface wave earlier, resolve the NIT table of wire transmission again.
Said self-defined search dialogue further comprises: the property frame of the programm name that is used to show that each channel comprises; Be used for indicated channel type and channel the sign hurdle and corresponding with said property frame, be used for to selecting the choice box of the channel that needs search for an and action bar.
Said choice box is selected by default.
Said action bar also comprises: be used for switching the page of said self-defined search dialogue switch key, the channel switch key that is used between different channel, switching, be used to show whole programm names of selected channel the information key, be used to switch to specific webpage numerical key, be used to start definite key of self-defined search and the ESC Escape that is used to withdraw from said self-defined search dialogue.
It is to realize through the mode to the corresponding choice box of the channel selection of needs selection that step is selected in said preview.
Said search step is to realize through the mode of only the selecteed channel of search box being searched for.
The said step that reads the programm name that said each channel comprises can be through receiving the service name parameter in the NIT table, and perhaps, the mode that combines NIT table, SDT (Active) table and SDT (Other) to show obtains.
Searching method of the present invention utilizes the NIT table to obtain all channel informations in the current network, and channel information is very comprehensive.And this information is presented on the user interface, the user can shift to an earlier date the programm name that all channel and each channels of preview are comprised, and also can optionally search for according to this information, has improved the specific aim of search, has improved search usefulness.
Description of drawings
Shown in Figure 1 is the overall flow figure of searching method of the present invention;
Shown in Figure 2 is the concrete realization flow figure that obtains NIT information of the present invention;
Shown in Figure 3 is the concrete sketch map of search dialogue of the present invention;
Shown in Figure 4 is the initialized particular flow sheet of the page of the present invention;
Fig. 5 to Figure 10 is the concrete sketch map of user interface of the present invention;
Figure 11 is a self-defined search procedure flow chart of the present invention.
Embodiment
Below will consult accompanying drawing, specify practical implementation process of the present invention.But institute gives an actual example and only is used to explain the present invention, and is not used in the scope of the present invention that limits.
The employed digital household appliances of user receives the digital program content that TV station provided through network usually.TV station transmits SI, wherein comprises the NIT table, has the programme information of all channel informations on the current network and each channel in the NIT table.Various types of digital household appliances include control unit, memory cell etc.
The method for user self-defining search of a kind of numeral household electrical appliance frequency channel of the present invention, core procedure comprises as follows:
(1) digital household appliances receives SI from TV station, obtains all channel informations on the current network through the NIT table of resolving wherein;
(2) be presented at this channel information on the user interface of digital household appliances through a self-defined search dialogue;
(3) from this interface, select to want the channel searched for;
(4) only selected channel is searched for.
See also Fig. 1, be the overall flow figure of searching method of the present invention.
At first, obtain all channel informations (step 101) on the current network.That is, the user side digital household appliances receives SI (service information) from TV station, wherein comprises the NIT table.Utilize the NIT table can obtain channels all on the current network and the pairing programme information of channel.From this information, judge whether have receivable channel in the current network, that is, judge that whether current network mid band number is greater than 0 (step 102).If do not exist, just the channel number is not more than 0, and searching method then of the present invention finishes.If exist, just the channel number then when the user selects to get into self-defined search dialogue (hereinafter to be referred as search dialogue), can show this search dialogue (step 103), and this search dialogue is carried out initialization (step 104) greater than 0.After this search dialogue initialization finishes, judge to the operation of this search dialogue whether overtime (step 105), if overtime; Then withdraw from this search dialogue; Searching method of the present invention finishes, if also do not have overtimely, the control unit of digital household appliances further judges whether to receive the index signal (step 106) from remote controller; Be judges whether through pushing the button of remote controller, digital household appliances is sent operational order.If through judging, do not receive the index signal from remote controller, then repeated execution of steps 105, that is, continue to judge whether search dialogue is overtime.If through judging, receive index signal, then read this remote controller key assignments (step 107) from remote controller.And make different operation to different remote controller key assignments, promptly judge remote controller key assignments (key) (step 108), if the key value is " enter ", then according to setting; Channel to selected in this search dialogue carries out self-defined search, and the key value is " up/down ", then changes the state that this search dialogue mid band is chosen, and the key value is " left/right "; Then in this search dialogue, switch between different channel, the key value is " info ", then displays program information; The key value is " number ", and then page turning is to the corresponding page number, and the key value is " ch up/chdown "; Then upwards perhaps page turning downwards, the key value is " exit ", then withdraws from search dialogue.
Below will describe four steps respectively.
For the step of obtaining all channel informations on the current network, realize through the mode of in the control program of digital household appliances, setting up the data structure that is used to store NIT table information among the present invention.The data structure of for example storing the NIT information of each channel is:
typedef?struct?tagUI_NIT_INFO{
bool?bSelect；
int?nInputType；
UINT?16uPhysicalNum；
int?nStationNum；
UI_STRING_T_szStationName[200]；
}UI_NIT_INFO_T；
The data structure of the character of storing station name is:
typedef?struct?tagUI_STRING_T{
char *sz；
int nLength；
}UI_STRING_T；
UI_NIT_INFO_T?g_NitInfo[200]；
Among the present invention, defined the global variable g_NitInfo of a UI_NIT_INFO_T type, the information that will from NIT, obtain will be deposited among the g_NitInfo.Selection mode when the bSelect variable of g_NitInfo is represented display of user interfaces, it is selected to be set at " 1 " representative, and " 0 " representative is not selected.Under the default setting, be set at " 1 ".The nInputType variable of g_NitInfo is represented the transport-type of NIT table; NIT information can transmit through surface wave wireless transmission, two kinds of forms of wire transmission; Surface wave is represented in " 0 ", and " 1 " representative is wired, and the control unit of digital household appliances is when reading; Read the NIT information of surface wave earlier, read wired NIT information again.The uPhysicalNum variable of g_NitInfo is represented channel, and the corresponding channel of each frequency in the NIT information, and control unit is after the channel with the frequency inverted in the NIT information, gives the uPhysicalNum variable with this channel assignment.The nStationNum variable of g_NitInfo is represented the tricks of the program in the current channel; The szStationName variable is represented programm name; Promptly corresponding TV station's platform name; Circulation is perhaps given the szStationName variable from the servicename parameter assignment of NIT information nStationNum time, and perhaps the NIT table combines SDT (Active) table and SDT (Other) assignment to the szStationName variable.
Step 101 is obtained the concrete realization flow figure of NIT information, sees also shown in Figure 2.A represents g_NitInfo among the figure.
When control unit reads channel information; According to the current channel number n of reading; Program cycle reads the full detail of each channel for n time, and this information comprises: the number of programs in selection mode, transport-type, channel, the channel, programm name, deposit among the g_NitInfo successively.
After receiving SI from TV station; Represent the i of channel number to be made as " 0 " with one; And judge whether to receive the NIT information (step 201) of surface wave; If no, continue to judge whether to receive wired NIT information (step 202), if having then read the NIT information (step 203) of surface wave.And then whether the value of judging i is less than channel number (step 204).If not, execution in step 202, if; Then read the information (step 205) of i channel; G_NitInfo [i] .bSelect being made as " 1 ", g_NitInfo [i] .nInputType is made as " 0 ", is the value of fc_1 function with g_NitInfo [i] .uPhysicalNum assignment.Control unit becomes channel through function f c_1 with frequency inverted.Subsequently, represent the J of program tricks to be made as " 0 " with one, whether judge J, promptly judge whether also comprise other programs in this channel less than number of programs (step 206) in this channel.If not, the i value is added 1 (step 211), continue execution in step 204, promptly succeeding channel is handled.If judge the service name whether effectively (step 207) in the NIT table.If not, give szStationName variable (step 210) in conjunction with NIT, SDT table taking-out platform name assignment, if be service name (step 208) with g_NitInfo [i] .szStationNam [j] assignment.Subsequently, the J value is added 1 (step 209), continue execution in step 206.
For step 202, if through judging wired NIT information that do not receive, flow process then of the present invention finishes, if received wired NIT information through judging, then reads wired NIT information (step 212), and represents the k of channel number to be made as " 0 " with one.Whether the value of subsequently, judging k is less than channel number (step 213).If not, flow process then of the present invention finishes, if; Then read the information (step 214) of k channel; G_NitInfo [i] .bSelect being made as " 1 ", g_NitInfo [i] nInputType is made as " 0 ", is the value of fc_1 function with g_NitInfo [i] .uPhysicalNum assignment.Fc_1 is the function that becomes frequency inverted channel.Subsequently, represent the J of number of programs to be made as " 0 " with one, judge that J is whether less than total number (step 215) of program in this channel.If not, the i value is added 1, the k value is added 1 (step 220), and continue execution in step 213.If judge the servicename whether effectively (step 216) in the NIT table.If not, give szStationName variable (step 219) in conjunction with NIT, SDT table taking-out platform name assignment, if be service name (step 217) with g_NitInfo [i] .szStationNam [j] assignment.Subsequently, the J value is added 1 (step 218), continue execution in step 215.The i value is added 1, the k value is added 1 (step 220).
Through above-mentioned steps, digital household appliances has obtained NIT table information.When the user selects to get into self-defined search dialogue (, step 103), need according to the NIT table information of being obtained and carry out the demonstration of search dialogue (that is step 104).The concrete sketch map of this search dialogue sees also Fig. 3.
Through variable service name, can in property frame 303, show the programm name of the program that is possessed in the channel, i.e. the platform name of TV station.The left side of property frame 303 shows the title 304 of this channel, and this title can be confirmed through the nInputType variate-value.If the channel in the surface wave, prefix " T ", after connect physical channel number, like " T23 "; If the channel in the wire signal, prefix " C ", after connect physical channel number, like " C8 ".Left side in the title 304 of this channel also shows choice box 301.The user can carry out final election to current choice box.Have " √ and " * " two kinds in the choice box.If final election " √ ", then this channel is selected; If selected " * ", then this channel does not have selected.Select with key up and down.The value of this choice box 301 is corresponding with the bSelect variable, and in the search box initialization, acquiescence bSelect variable assignments is " 1 ", and is promptly selected.Above search box, also comprise a channel number viewing area 302, its channel displayed sum.Below search box, have a help hurdle 305, help the method for using of the shortcut on the hurdle display remote controller.Comprising information key, right and left key, channel+/-, 0～9, ESC Escape.When the user clicks " information " key (the key value is " info "), show a dialog box, show the details of all programs in the current channel of choosing, as shown in Figure 7.The user click " about " key (the key value is " left/right ") switches in different frequency channels.Channel+/-key (the key value is " chup/ch down ") is used for switching at the different pages.The user clicks 0～9 numerical key (the key value is " number "), can jump in the page of appointment.The user clicks ESC Escape (the key value is " exit ") can withdraw from defined interface.Help the top on hurdle 305 also to show a page number number 306, be used to represent the order of each page.The top of page number number 306 also shows a signal language 307, and the prompting user carries out self-defined search with acknowledgement key.
And the initialized particular flow sheet of the page of realizing above-mentioned display effect sees also Fig. 4.Represent the i of channel number to be made as " 0 " (step 401) with one, represent the p of number of pages to be made as " 0 " (step 402), judge that whether the channel number that comprises in the NIT table is greater than i (step 403).If not, refresh the page (step 404), method of the present invention finishes.If, whether judge i less than 4* (1+p) (step 405), promptly judge the channel number whether be in current page in the correct channel sequence scope that should have.If not, execution in step 404, method of the present invention finishes.If continue to judge whether g_NitInfo [i] .bSelect equals " 1 " (step 406).If in choice box, show " √ " (step 407).If, in choice box, do not showing " * " (step 409).Subsequently, whether g_NitInfo [i] .nInputType is equaled " 0 " judge (step 408), if, before channel, add " T " (step 410), if not, before channel, add " C " (step 412).Subsequently; According to g_NitInfo [i] .uPhysicalNum value " C " perhaps " T " back indicated channel number (step 411); And, the i value is added 1 (step 414) according to g_NitInfo [i] .szStationNam display station name (step 413), next channel is handled.
If the user need be switched current page, then click remote controller buttons (step 415).What the control unit judges of digital household appliances was clicked is the key value of button.If through judging, what the user clicked is " channel+", judges that then whether i+1 is less than channel number (step 416); If promptly current channel is the last channel in all channels, then forbids page turning backward not; If promptly current channel is not the last channel, then the p value is added 1 (step 417); Promptly turn over one page backward, continue execution in step 403.If through judging, what the user clicked is " channel-", judges then whether i-4 is not less than 0 (step 418), if not; Be that current page is first page in all pages, can not carry out page turning more forward, then forbid forward page turning; If, judge further then whether p-1 is not less than " 0 " (step 419), if; Then the p value is subtracted 1, the i value subtracts 4 (steps 420), continues execution in step 403.If through judging, what the user clicked is " numerical key ", judge then whether the numeral of being clicked-1 is not less than " 0 " (step 421); If not, then this page does not exist, if; Then judge and be somebody's turn to do (numeral-1) * 4 whether less than the channel number, if be this numeral-1 then with p value assignment; The i assignment is 4 times p, continues execution in step 403.
At this moment, all the information of channels and program all has been stored among the array g_NitInfo and through search box and has shown, and the user can be through the selection to the choice box in the interface shown in Figure 3 301, confirm the channel that will search for.Promptly through the operation to user interface, from array g_NitInfo, selected part or all of channel is stored the information of the channel of choosing, and only the channel of choosing is being searched for.
Through the detailed maps at interface, the process that the user operates is described below, is seen also Fig. 5 to Figure 10.At first, the user gets into main menu, after entering is provided with option, gets into the option of white definition search.Then search for the program that is comprised in existing channel in the current network and each channel automatically, for example, the current T23 channel that comprises, comprising the multiple programs of CCTV, and the C8 channel, comprising quadruplet local tv station program.After choosing the T23 channel, the click information key can be checked the detailed programme information that the T23 channel is included.Click and confirm key or ESC Escape, can withdraw from current interface, get back to defined interface.Utilize right and left key, be movable to the T50 channel, utilize key up and down, can the state of originally choosing be revised as and not choose.Click channel+perhaps direct some numeral 2 this moment, can translate into second page.This second page comprises C20 channel and C25 channel.Be that 6 channels can be provided in the current network altogether, the user can choose special channels wantonly and search in these 6 channels, strengthened specific aim.As shown in the figure, the user has selected T23, C5, and C8, C20, C25 be totally 5 channels.After clicking acknowledgement key, digital household appliances will only be searched for this 5 channels.
After clicking acknowledgement key, self-defined search begins, and this self-defined search procedure flow chart sees also Figure 11.At first, be " 0 " (step 1101) with the i value assignment of representing the channel number, whether judge the i value less than channel number (step 1102), if not; Search for (step 1106) according to canned data, if judge whether g_NitInfo [i] .bSelect equals " 1 " (step 1103); If not, flow process of the present invention finishes, if; Whole attribute informations of g_NitInfo [i] are stored (step 1104), the i value is added 1 (step 1105), continue execution in step 1102.
Searching method of the present invention utilizes the NIT table to obtain all channel informations in the current network, and channel information is very comprehensive.And this information is presented on the user interface, the user can shift to an earlier date the programm name that all channel and each channels of preview are comprised, and also can optionally search for according to this information, has improved the specific aim of search, has improved search usefulness.
Above-mentionedly being merely possible embodiments of the present invention, is not to be used to limit to claim of the present invention, and the equivalent structure that all utilizations specification of the present invention and accompanying drawing content are done changes, and all in like manner all is contained in the scope of the present invention.
Claims (10)
1. the method for user self-defining search of a numeral household electrical appliance frequency channel, said digital household appliances receives the NIT information that TV station sends through network, it is characterized in that, comprises the steps:
Analyzing step is resolved the NIT table, to obtain all channel informations in the current network, makes that channel information is comprehensive;
Step display is presented at said channel information on the user interface of said digital household appliances through a self-defined search dialogue, shifts to an earlier date the programm name that all channel and each channels of preview are comprised for the user;
Step is selected in preview, the channel of in said self-defined search dialogue, further searching for according to said channel information demarcation needs;
Search step is only searched for the channel of having demarcated in the said self-defined search dialogue, with specific aim and the search usefulness that improves channel search.
2. the method for claim 1 is characterized in that, said channel information comprises the programm name that the number of programs that comprises in channel number, channel, each channel and each channel comprise.
3. method as claimed in claim 2 is characterized in that, said analyzing step further comprises:
Read said channel number, the number of times that the said channel number that circulates is determined reads the programm name that the number of programs that comprises in said channel, the said channel, said each channel comprise successively, and is stored to an array.
4. the method for claim 1 is characterized in that, said analyzing step further comprises: resolve the NIT table of surface wave earlier, resolve the NIT table of wire transmission again.
5. like claim 1,2,3 or 4 described methods; It is characterized in that; Said self-defined search dialogue further comprises: the property frame of the programm name that is used to show that each channel comprises; Be used for indicated channel type and channel the sign hurdle and corresponding with said property frame, be used for to selecting the choice box of the channel that needs search for an and action bar.
6. method as claimed in claim 5 is characterized in that said choice box is selected by default.
7. method as claimed in claim 5; It is characterized in that said action bar also comprises: be used for switching the page of said self-defined search dialogue switch key, the channel switch key that is used between different channel, switching, be used to show whole programm names of selected channel the information key, be used to switch to specific webpage numerical key, be used to start definite key of self-defined search and the ESC Escape that is used to withdraw from said self-defined search dialogue.
8. method as claimed in claim 5 is characterized in that, it is to realize through the mode to the corresponding choice box of the channel selection of needs selection that step is selected in said preview.
9. method as claimed in claim 8 is characterized in that, said search step is to realize through the mode of only the selecteed channel of search box being searched for.
10. method as claimed in claim 3 is characterized in that, the step that reads the programm name that said each channel comprises is through receiving the service name parameter in the NIT table, and perhaps, the mode that combines NIT table, SDT Active table and SDT Other to show obtains.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101365101B (en) * | 2008-10-07 | 2011-05-25 | 北京互信通科技有限公司 | Ciphering channel playing method and set-top box |
| CN102413366A (en) * | 2011-12-02 | 2012-04-11 | 深圳Tcl新技术有限公司 | Method and device for searching channels in digital television |
| CN102547428B (en) * | 2011-12-06 | 2018-07-24 | 中兴通讯股份有限公司 | A kind of switching method of television channel and the client for realizing television channel switching |
| CN105578236B (en) * | 2014-10-27 | 2019-01-29 | 未来电视有限公司 | Video screening technique and device for TV |
| CN105828177A (en) * | 2016-03-29 | 2016-08-03 | 乐视控股（北京）有限公司 | Television channel searching control method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1221286A (en) * | 1997-08-19 | 1999-06-30 | 索尼公司 | Information providing apparatus and method, information receiving apparatus and method, and transmission medium |
| CN1735150A (en) * | 2004-08-03 | 2006-02-15 | 上海乐金广电电子有限公司 | Channel management device and method for TV set |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1221286A (en) * | 1997-08-19 | 1999-06-30 | 索尼公司 | Information providing apparatus and method, information receiving apparatus and method, and transmission medium |
| CN1735150A (en) * | 2004-08-03 | 2006-02-15 | 上海乐金广电电子有限公司 | Channel management device and method for TV set |
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Granted publication date: 20120620 Termination date: 20211220 |