CN201150092Y - Control circuit of display with program-searching function - Google Patents

Abstract

The utility model discloses a display controlling circuit with a program searching function. The circuit comprises a tuner used for receiving a television signal; a demodulation unit coupled with the tuner and used for demodulating the television signal to generate a demodulation alter signal; a data analyzing unit coupled with the demodulation unit and used for analyzing and processing the demodulation alter signal, to generate program information; a storage unit coupled with the data analyzing unit and used for storing the program information; a reception unit used for receiving an input data; and a controller which is coupled with the tuner, the storage unit and the reception unit, is used for reading the program information from the storage unit, and compares the program information with the input data.

Description

A kind of control circuit with display of program function of searching

Technical field

The utility model relates to a kind of control circuit of display, particularly relates to a kind of control circuit with display of program function of searching.

Background technology

Flourish along with Digital Television, its service that can provide is more and more variation also, for example in the channel of Digital Television, the programme information of TV programme additionally is provided, comprise timetable, broadcast channel, the brief introduction of programme content, the performer who participates in performance or classification of player who attends the competition and program of program or the like, the programme information of this class be referred to as electronic program menu (Electronic Program Guide, EPG).Before not having electronic program menu, the audience must inquire about the list of television programmes of Hard copy, the listing that provides by newspaper or cable television operators for example, otherwise be the online inquiry, just can learn the program log of numerous TV stations.And utilize electronic program menu, the audience can directly inquire about TV programme on TV, only need operation by remote controller, just can find the list of television programmes of each TV station in a nearest week or two weeks, and can see the brief introduction of each program, the audience can more convenient searching wants the program seen.

Application No. US 10/225,421 utilizes electronic program menu to provide easier interface of audience and method to seek TV programme.It utilizes and show a control panel on display, allows the audience can utilize the button on the panel to come select time information and channel, therefore can obtain the programme information of certain program, whether views and admires this program with decision.Yet the quantity of TV station is during greatly to certain degree, browses each channel and each program and finds and want that the program viewed and admired can quite consuming time and trouble, so have method more easily that the audience can be found sooner to want the program of seeing.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of control circuit with display of program function of searching, to save the time that the audience looks for program.

To achieve these goals, the utility model provides a kind of control circuit with display of program function of searching, it is characterized in that, includes: a tuner is used to receive a TV signal; One demodulating unit is coupled to this tuner, is used to separate this TV signal of modulation and separates modulating signal to produce one; One data analysis unit is coupled to this demodulating unit, and this separates modulating signal to be used for analyzing and processing, to produce a programme information; One memory cell is coupled to this data analysis unit, is used to store this programme information; One receiving element is used to receive input data; And a controller, be coupled to this tuner, this memory cell and this receiving element, be used for reading this programme information, and this programme information and this input data are contrasted from this memory cell.

Adopt the utility model to make the audience to find sooner to want the program of seeing, saved the time that the audience looks for program greatly.

Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.

Description of drawings

Fig. 1 is the control circuit according to the display with program function of searching of the utility model first embodiment;

Fig. 2 browses the schematic diagram of picture for the utility model programme information;

Fig. 3 browses the schematic diagram of picture for while display program image and programme information on the display;

Fig. 4 on the display only displays program information browse the schematic diagram of picture;

Fig. 5 is the control circuit according to the display with program function of searching of the utility model second embodiment;

Wherein, Reference numeral:

110,510,520 tuners

120,530 demodulating units

130,540 multiplexers

140,550 picture decoders

150,570 tone decoders

160,580 data analysis unit

165,585 memory cell

170,560 graphics processing units

180,590 controllers

190,595 receiving elements

300,400 displays

310,410 programme informations are browsed picture

320,420 input windows

The image frame of 330 TV programme

Embodiment

In specification, used some vocabulary to censure specific assembly.The person with usual knowledge in their respective areas should understand, and hardware manufacturer may be called same assembly with different nouns.This specification is not used as distinguishing the mode of assembly with the difference of title, but the criterion that is used as distinguishing with the difference of assembly on function.Be an open term mentioned " comprising " in the specification in the whole text, so should be construed to " comprise but be not limited to ".In addition, " couple " speech and comprise any indirect means that are electrically connected that directly reach at this.Therefore, be coupled to one second device, then represent this first device can directly be electrically connected in this second device, or be electrically connected to this second device indirectly by other device or connection means if describe one first device in the literary composition.

See also Fig. 1, Fig. 1 is the control circuit according to the display with program function of searching of the utility model first embodiment.Control circuit 100 includes tuner 110, demodulating unit 120, multiplexer 130, picture decoder 140, graphics processing unit 170, tone decoder 150, data analysis unit 160, memory cell 165, controller 180 and receiving element 190.Tuner 110 received television signals, this TV signal can be TV signal numeral or simulation.Generally speaking traditional anolog TV signals do not provide complete programme information to browse for the audience, yet after the TV programme digitlization, the transition period that replaces at analog and digital signal, same TV station may provide anolog TV signals and digital television signal simultaneously, digital television signal is except can the programme information of transmission itself, can also transmit the programme information of anolog TV signals simultaneously, so the audience still can inquire the programme information of this simulated television.

The TV signal that tuner 110 receives is with after demodulating unit 120 is separated modulation, according to different signal transmission standards, the mode that demodulating unit 120 is separated modulation is also different, and for example U.S. rule are different with the modulation mode of the terrestrial broadcasting of Europe rule, and therefore corresponding demodulating unit 120 just must be arranged.After separating modulation, separate modulating signal via the iconic element of multiplexer 130 with this TV signal, audio frequency component and data component are separated, then according to the different characteristic of each signal component, do different processing, for example iconic element is just by picture decoder 140, produce the picture signal of decoding, and then do further processing by graphics processing unit 170, the convergent-divergent of picture for example, interpolation, brightness is adjusted, eliminate noise, image sharpening or the like, and generation TV programme picture signal, this picture signal promptly can be passed through display, LCD for example, plasma displays etc. are presented in face of the audience; Audio frequency component produces audio signal by the processing of tone decoder 150; Data component is then by producing programme information after data analysis unit 160 analyzing and processing, and is stored in the memory cell 165.

Controller 180 is coupled to tuner 110, multiplexer 130, memory cell 165, graphics processing unit 170 and a receiving element 190, the audience can transmit instruction by receiving element 190 and give controller 180, for example when the audience imports channel selecting signal, control tuner 110 switches to the pairing physical channel of desiring to choose of target program (Physical Channel) to controller 180 on the one hand, and controlling multiplexer 130 chooses the target program on the one hand.When the audience imports programme information and browses signal, controller 180 reads programme information from memory cell 165, and control graphics processing unit 170 output programme informations are browsed picture to display unit (not shown), and the audience just can directly browse TV programme on display unit.

See also Fig. 2, Fig. 2 browses the schematic diagram of picture for the utility model programme information.Show date, channel and channel designation on the picture, the audience can inquire about programme information according to the channel of hobby and specific date, this programme information is browsed picture being half an hour a unit, if program length surpasses half an hour, then the programm name that shows on the picture can be across at least two periods.Programme information is browsed picture except the display program title, and the synopsis that shows this program, for example the program of the 2nd channel B 18:30 to 20:00 of TV station is film " XYZ ", the below of movie name then shows the summary of film, for example synopsis, performer introduce, win a prize record, box office or the like, to allow the audience this film be had the understanding of summary.The information of this class is at the program and system information protocol (the Program and System InformationProtocol of U.S.'s rule, PSIP) be called as Event Information Table (Event Information Table in, EIT), in addition, comprise also among the PSIP that (Extended Text Table ETT) is used to show more detailed program introduction to the extension literal table.

Above-mentioned receiving element 190 can be the control panel on the display (for example flat-panel screens), or the receiver of remote controller.Graphics processing unit 170 can export the TV programme picture signal simultaneously and programme information is browsed picture, this moment, programme information was browsed the mode that drawing can show with window, for example show on the screen (On Screen Display), be shown in display unit, as shown in Figure 3, image frame 330 and the programme information that shows TV programme on the screen of display 300 browsed picture 310; Another kind of situation is, when graphics processing unit 170 output programme informations are browsed picture, suspend output TV programme picture signal, as shown in Figure 4, controller 180 can be controlled 170 output of graphics processing unit programme information and browse picture 410 and do not export the TV programme picture signal, therefore programme information is browsed picture 410 and can be presented on the screen of display 400 in the mode of full screen, allows the more convenient programme information of browsing of audience.Yet because channel and program are numerous, the audience is not easy to find out in huge programme information and wants the program seen, so the utility model proposes a kind of function of search programs, the audience can be found out apace want the program of seeing.When the audience carries out the function of program search, receiving element 190 receives a channel search signal and notification controller 180, controller 180 control graphics processing units 170 are browsed picture 310 at programme information, show an input window 320 on 410,420, as shown in Figure 3 and Figure 4, at input window 320, in 420, the audience can utilize remote controller or display 300, control panel input keyword on 400, this keyword (or being called the input data) receives and offers controller 180 by receiving element 190, controller 180 is on the other hand by reading programme information in the memory cell 165, to import data then and programme information contrasts, produce comparing result.During contrast, all the elements that controller 180 can be comprised input data and programme information contrast, contents such as EIT that contains at least among the PSIP of for example above-mentioned U.S. rule and ETT, these are included in controller 180 and search in the scope of contrast, in addition, date, channel, channel designation, programm name etc., also all be search contrast to picture.With respect to the PSIP of U.S.'s rule, the broadcast system of Europe rule also has similar electronic program menu (EPG), and controller 180 also can be searched similar channel of contrast and programme information.

After the search contrast was finished, controller 180 can be sent to graphics processing unit 170 with the program comparing result and browse on the picture 310,410 to be presented at programme information.The program comparing result can will meet or the channel of approximate keyword and program are listed fully, the audience can choose interesting target program by moving cursor, choose back controller 180 and judge according to the broadcast time of this target program whether this program just is on the air (On Air), if, then controller 180 indication tuners 110 will receive frequency range and switch to the pairing physical channel of this target program, and control multiplexer 130 is chosen this target program, so graphics processing unit 170 can be sent the picture signal of this target program; If the target program is not just to be on the air, controller 180 control graphics processing units 170 are browsed at programme information and are shown on the picture that warning signal is to inform that audience's target program is not at the broadcasting state, and whether the inquiry audience sets prompting function, if the audience sets prompting function, then controller 180 produces a prompting message, and prompting message is stored in the memory cell 165.Prompting message in the controller 180 meeting regular check memory cell 165, and the time that sets according to prompting message, when the target program is about to play, control graphics processing unit 170 is sent one and is reminded picture to inform the audience, this prompting picture can be in the mode of window demonstration, for example show on the screen, be shown on the display simultaneously with the TV programme image.

In the embodiment shown in fig. 1, be stored to then in the memory cell 165 if the programme information of each program will be collected, controller 180 must control tuner 110 with multiplexer 130 with all channel scannings one time, to capture the programme information of each program.This action can be carried out when display starting, this moment tuner 110 controlled devices 180 control and continue switching channels, therefore display can't present stable television image, sends first-class and treats that picture is in the state of channel scanning to inform audience's display so controller 180 can be controlled graphics processing unit 170.The process of wait channel scanning is finished, and after the programme information of each program had been stored to memory cell 165, controller 180 control image-display units 170 stop to transmit waited for picture, changes into and transmits the TV programme image.Yet the step of channel scanning can expend many times usually, and the audience finishes with regard to the process that must wait for channel scanning as if the instruction of not assigning interrupt scanning could normally watch program.In order to improve this shortcoming, when display (just connect power supply but not the state of start) when standby mode (stand-by mode), can utilize the method for software control, make controller 180 automatically control tuner 110 and carry out channel scannings, the programme information of each program is collected and be stored to memory cell 165 with multiplexer 130.When standby mode, the screen of display is to be in closed condition, this moment, the audience can pass on a starting-up signal to give controller 180 by receiving element 190, controller 180 receives after this starting-up signal, control this display and enter power on mode by standby mode, just the screen with display switches to opening.Therefore before display starting, if controller 180 has been controlled tuner 110 and has been finished channel scanning and produce programme information, then when display starting, there has been complete programme information in the memory cell 165, the audience can view and admire TV programme immediately, browses programme information or carry out the program search, need not to wait for that again scanning process finishes after start.

Except on be set forth in standby mode and carry out channel scanning and upgrade the programme information, also can utilize assisting of second tuner to carry out channel scanning.See also Fig. 5, Fig. 5 is the control circuit according to the display with program function of searching of the utility model second embodiment.Control circuit 500 includes tuner 510 and 520, demodulating unit 530, multiplexer 540, picture decoder 550, graphics processing unit 560, tone decoder 570, data analysis unit 580, memory cell 585, controller 590 and receiving element 595.Assembly among Fig. 5, the assembly identical with title among Fig. 1 has similar or identical functions.In this embodiment, controller 590 can control tuner 510 and 520 one of them carry out channel scanning to collect programme information, and according to the selected program channel of audience, control another tuner frequency range is switched to the pairing physical channel of this program, to receive the programme signal of the TV programme that the audience was desired to view and admire.For instance, controller 590 control tuners 510 receive first TV signal, first TV signal produces first and separates modulating signal after demodulating unit 530 demodulation, then this first data component of separating modulating signal of data analysis unit 580 analyzing and processing produces programme information, that is to say that controller 590 control tuners 510 carry out channel scanning to collect programme information; On the other hand, controller 590 control tuners 520 receive second TV signal, second TV signal produces second and separates modulating signal after demodulating unit 530 demodulation, then picture decoder 550 is with this second iconic element decoding of separating modulating signal, produce the decoding picture signal, and graphics processing unit 560 is handled this decoding picture signal to produce the TV programme picture signal, that is to say the selected program channel according to the audience, controller 590 control tuners 520 receive the second corresponding TV signal.Thus, the received television program signal can carry out simultaneously with the collection programme information, and audience's rating just can not be affected yet.

Demodulating unit 530 is coupled to tuner 510,520 simultaneously, be used to separate the TV signal that modulation two tuners are received, the modulating signal of separating after the demodulation is handled by multiplexer 540, and controller 590 can be controlled multiplexer 540 according to audience's instruction and choose the audience and want the program watched.Identical by multiplexer 540 isolated signals with preceding embodiment, be divided into iconic element, audio frequency component and data component.Iconic element is handled the back by picture decoder 550 with graphics processing unit 560 and is produced picture signals, picture decoder 550 and graphics processing unit 560 respectively with first embodiment in picture decoder 140 have similar or same function with graphics processing unit 170; Audio frequency component is handled the back by tone decoder 570 and is produced audio signal; Data component produces programme information after by data analysis unit 580 analyzing and processing, and is stored in the memory cell 585.Controller 590 is couple to receiving element 595 in addition, and receiving element 595 is similar with receiving element 190, can be the control panel on the display or the receiver of remote controller, is used to receive the instruction that the audience assigns or the data of input.Controller 590 also is coupled to memory cell 585 and graphics processing unit 560, programme information in can reading cells 585, and control graphics processing unit 560 is shown in display in the mode that shows on the screen, or the input data that programme information and receiving element 595 receive are contrasted, export on the display after then the program comparing result being handled via graphics processing unit 560.

Above-mentioned circuit framework shown in Figure 5 also can be applicable to support to utilize separation picture to show (Picture OutPicture, POP) or overlapping pictures shows (Picture In Picture, PIP) display, by the control of controller 590, the audience can watch the TV programme of two different channels simultaneously.In this case, the audience might choose the function of watching two different channels simultaneously immediately after start, so controller 590 just can't utilize tuner 510 or 520 to carry out channel scanning to collect programme information, otherwise controller 590 just must be controlled one of them tuner and switch to fixing channel and receive the program that the audience selectes, carry out channel scanning and control another tuner, the audience can only watch a program in the meantime, after treating that channel scanning is finished, just can recover to watch simultaneously two programs.In order to solve the situation of this inconvenience, control circuit 500 also can utilize the mode of software control, when the display standby, controller 590 utilizes one of them of tuner 510,520, or be both and utilize both to do channel scanning, utilize tuner 510 and 520 to carry out channel scanning simultaneously, can more shorten the time of collecting programme information.

Adopt the utility model to make the audience to find sooner to want the program of seeing, saved the time that the audience looks for program greatly.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.

Claims (2)

1, a kind of control circuit with display of program function of searching is characterized in that, includes:

One tuner is used to receive a TV signal;

One demodulating unit is coupled to this tuner, is used to separate this TV signal of modulation and separates modulating signal to produce one;

One data analysis unit is coupled to this demodulating unit, and this separates modulating signal to be used for analyzing and processing, to produce a programme information;

One memory cell is coupled to this data analysis unit, is used to store this programme information;

One receiving element is used to receive input data; And

One controller is coupled to this tuner, this memory cell and this receiving element, is used for reading this programme information from this memory cell, and this programme information and this input data are contrasted.

2, control circuit according to claim 1 is characterized in that, also includes:

One picture decoder is coupled to this demodulating unit, is used for this is separated the iconic element decoding of modulating signal, to produce a decoding picture signal; And

One graphics processing unit is coupled to this picture decoder and this controller, is used to handle this decoding picture signal to produce a TV programme picture signal, wherein

This controller produces a program comparing result after this programme information of contrast and this input data, and controls this graphics processing unit, so that this program comparing result is shown in a display unit.

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