KR101396745B1 - Program listing generation apparatus and program listing generation method - Google Patents

Abstract

(Problem) The processing load of the program information update processing and the processing time are suppressed so that the program table can be scrolled and displayed with good response.
(Solution) The program generating apparatus 100 specifies a part corresponding to the type of the updated program information when the program information necessary for constituting the program table screen is updated, and updates the graphics data of the specified part A display list generation unit 111 for updating the rendering definition of the specified part so as to draw the program table screen using the graphics data generated from the updated program information; And a rendering unit 113 for generating screen data of the program table screen in accordance with the updated rendering definition.

Description

[0001] PROGRAM LIST GENERATION APPARATUS AND PROGRAM LISTING GENERATION METHOD [0002]

The present invention relates to a program table generating apparatus and a program table generating method for generating a program table of digital broadcasting.

At present, transition from analog broadcasting to digital broadcasting is proceeding. In digital broadcasting, since each broadcasting station can transmit program data to broadcast waves, the receiving apparatus has an electronic program guide that has a function of displaying a program table of each broadcasting station on a television screen or the like It is common.

In addition to the display of the electronic program guide, the electronic program guide can display the selected program title and broadcast time, display the performer and program content, and schedule the program. In particular, the electronic program table can display program information of a plurality of broadcasting stations in a desired time zone, which is helpful for confirmation of a broadcasting schedule and searching for a program.

The electronic program table is generated based on the program information of each broadcasting station included in the broadcasting wave. However, when the contents of the program or the program to be broadcast are changed, or when the program currently being broadcast is ended, Needs to be. Particularly, when the program information is updated during the display of the electronic program table, it is necessary to update the contents so as not to cause the user to feel stress.

Patent Document 1 discloses a technique for preventing an operation of an electronic program table by a user from being disturbed by an update process of an electronic program table. The electronic program guide creation device disclosed in Patent Document 1 is configured not to execute the update process of the electronic program guide when the user is continuously operating the electronic program guide. Therefore, according to the technique disclosed in Patent Document 1, the operation of the user is not temporarily disturbed by the updating process of the electronic program table, and the operability can be improved.

(Prior art document)

(Patent Literature)

(Patent Document 1) Japanese Patent Laid-Open No. 2007-28076 (paragraph 0019, Fig. 1)

However, in the technique described in Patent Document 1, if there is a program whose broadcast is terminated during the operation of the electronic program table by the user, the contents of the displayed electronic program table may be different from the program currently being broadcast.

In addition, when changing the time zone or the broadcasting station to be displayed in the electronic program table, it is common to scroll the display contents by key operation or the like. However, since the electronic program table has a large amount of information to be displayed, it takes much time to generate the screen data to be switched at the time of switching the display screen from the beginning. Therefore, for example, when the user erroneously performs a key operation and the key operation is performed again after the display screen is switched, the user feels a great stress on the display response.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to suppress the processing load and the processing time of the program information updating process and to scroll and display the program table with good responsiveness.

There is provided an apparatus for generating a program according to an aspect of the present invention includes a part generation unit for generating graphics data of parts constituting a program table screen, A display list generation unit for generating a display list including a definition of painting that defines a definition for each part; and a display list generation unit for generating screen data of the program table screen using the graphics data according to the drawing definition An update information storage section for storing update information including a type of program information necessary for constructing the program table screen and part identification information indicating a part generated from the program information of the type; A program for acquiring the program information from the program arrangement information And an update determination unit for determining whether or not the program information has been updated, wherein, when it is determined by the update determination unit that the program information has been updated, the part generation unit updates, in the update information, And the display list generation unit generates the display definition of the specified part from the updated program information by specifying a part corresponding to the type of information and generating graphics data of the specified part from the updated program information, And the drawing unit generates screen data of the program table screen in accordance with the updated display list, so that the program table screen can be rendered using the graphics data that has been generated.

According to one aspect of the present invention, the processing load and processing time of the program information updating process can be suppressed, and the program table can be scrolled and displayed with good response.

1 is a block diagram schematically showing a configuration of a program table generating apparatus.
2 is a schematic diagram showing an example of update information.
3 is a schematic view showing an example of a program table screen.
4 is an exploded view schematically showing the structure of the program guide graphics.
5 is a schematic diagram showing an example of the data structure of the program table display list.
6 is a schematic diagram showing an example of the structure of a video memory.
FIG. 7 is a flowchart schematically showing a process when the program table generating apparatus updates a program table screen based on program information. FIG.
8 is a flowchart schematically showing a process when a user operation is performed in the program table generating apparatus.

1 is a block diagram schematically showing a configuration of a program table generating apparatus 100 according to an embodiment of the present invention. The program table generating apparatus 100 includes a reception processing section 101, a program information receiving section 102, an operation accepting section 103, a data storing section 104, an update information storing section 105, A storage unit 106, a control unit 107, a video memory 112, a rendering unit 113, and a display unit 114. [ The program information display processing unit 115 is configured by the update information storage unit 105, the program information storage unit 106, the control unit 107, and the rendering unit 113. The control unit 107 includes an overall control unit 108, an update determination unit 109, a part generation unit 110, and a display list generation unit 111.

The reception processing section 101 generates a TS (Transport Stream) from a radio wave received by an antenna (not shown), and separates SI (Service Information), which is program arrangement information, from this TS. Then, the reception processing unit 101 gives the separated SI to the program information reception unit 102. [ Here, for example, the TS generated by the reception processing unit 101 is an MPEG2 TS.

The program information reception unit 102 acquires program information necessary for configuring a program table from the SI. Then, the program information reception unit 102 gives the acquired program information to the control unit 107. [ Here, in the present embodiment, the program information includes at least a time offset table (TOT), an event information table_present / following (EIT_p / f) and an event information table_schedule (EIT_s). The TOT includes information on the current time and date, and information indicating an offset time during the daylight saving time. EIT_p / f is information indicating the current program present and the following program, among the EIT (Event Information Table) in which the information on the program such as the program name, the broadcast date and time, And program information. The EIT_s is schedule information, that is, wide-range program information, among the EITs, and includes, for example, a program schedule for eight days. The wide-area program information includes information of more programs than the limited-range program information, and the update frequency is lower than the update frequency of the limited-range program information.

The operation accepting unit 103 accepts an input of an operation from the user. For example, the operation accepting unit 103 may include a key input device (a keyboard, a touch panel, a remote control, etc.), a pointing device (a mouse, etc.) , Or an interface having a communication function with an external device. Then, the operation accepting unit 103 notifies the control unit 107 of the contents of the operation from the user who accepted the input.

The data storage unit 104 stores a plurality of material data for generating graphics data of a part constituting screen data of a program table. For example, the material data is vectorized data, and is composed of vectorized icon data, graphics data for a logo mark, vector font data (outline font data data).

The update information storage unit 105 indicates updated program information and parts generated from the program information, and also stores update information indicating the update frequency of the program information. 2 is a schematic diagram showing an example of the update information RD. As shown in the figure, the update information RD has a program information kind column RD1, a part column RD2, and an update frequency column RD3.

The program information classification column RD1 stores program information classification as identification information for identifying program information.

The part column RD2 stores part identification information for identifying a part generated based on the program information identified by the program information kind column RD1. Here, the part name is used as part identification information.

The update frequency RD3 stores update frequency information indicating an update frequency at which the program information identified by the program information classification column RD1 is updated. For example, the update frequency is represented by a natural number, and the smaller the value, the higher the update frequency is. In the example of Fig. 2, since the contents are updated in a cycle of 1 minute, the TOT is updated most frequently. Since the contents of EIT_p / f are updated when the current program is terminated, the update frequency is high next to TOT. Since the content of EIT_s is updated at the time of changing the date, unless the content is scheduled to be broadcasted, the update frequency is lowest. Also, when the program information is updated, since the graphics data of the part generated from the program information is also updated, the update frequency information also indicates the update frequency of the part.

Returning to the description of FIG. 1, the program information storage unit 106 stores program information used when generating the latest program table.

The control unit 107 includes an overall control unit 108, an update determination unit 109, a part generation unit 110, and a display list generation unit 111. The control unit 107 generates and updates graphics data and a display list for constituting screen data of the program table.

3 is a schematic diagram showing an example of a program table screen PG drawn on the basis of screen data of a program table. The program table screen PG has a program table background graphic B01, a time information graphic T01, and a program table graphic E01.

The program table background graphic B01 includes graphics B011 constituting a background, graphics B012 constituting a title, graphics B013 constituting a logo mark, and the like.

The time information graphic T01 represents the current date and time obtained by SI.

The program table graphic E01 shows contents of programs to be broadcasted in correspondence with date and time and broadcasting stations. In the program table graphics E01, temporal information (y axis in Fig. 3) and broadcast station information (x axis in Fig. 3) are scrolled by user operation. In the program table graphics E01, the background color of the program currently being broadcast is changed so that the currently broadcast program can be recognized at a glance.

4 is an exploded view schematically showing the structure of the program table graphics E01. Program table graphics E01 is the first program table fixed part (with update: y axis) FUY01, the second program table fixed part (with update: y axis) FUY02, the third program table fixed part (with update: x axis) FUX01 , A limited range program table part P01, and a wide range program table part W01. In the limited range program table part P01 and the wide range program table part W01, the area actually displayed on the program table screen PG (see Fig. 2) is the screen display area SR surrounded by the dashed line.

The first program table fixing part FUY01 indicates the date, and the second program table fixing part FUY02 indicates the time. When the program table graphic E01 is scrolled in the y-axis direction by the user operation, the first program table fixing part FUY01 and the second program table fixing part FUY02 are changed as the program table screen PG (see Fig. 2) do. Here, the first program table fixed part FUY01 scrolls according to the date, but the second program table fixed part FUY02 scrolls with time. In addition, the third program table fixed part FUX01 displays the information representing the broadcasting station in the horizontal direction (x-axis direction). In the third program table fixing part FUX01, when the program table graphic E01 is scrolled in the x-axis direction by the user operation, the display area is changed.

The wide area program table part W01 displays the content of the broadcast program in association with the date and time and the broadcast station. The wide area program table part W01 is generated, for example, for each date.

The limited range program table part P01 displays the contents of the program currently being broadcast and the program to be broadcast next. Since the broadcasting time of the program broadcasted by each broadcasting station differs from one program to another, the height (time range) of the limited range program table P01 is determined based on the broadcasting station having the maximum broadcasting time. For other broadcast stations, a transparent color graphics of a size corresponding to a time short of the maximum broadcast time is added, and the limited range program table part P01 is generated as a whole as a rectangular graphics. For example, in Fig. 4, the height of the limited range program table part P01 is determined based on the broadcasting station of ch6, and for the other broadcasting stations, a transparent color graphics indicated by crosshatching is added. The limited-range program table part P01 is shown by hatching in Fig. 4, but changes the background color of the part displaying the contents of the program currently being broadcasted. Therefore, the user can easily recognize the program currently being broadcasted. This limited range program table part P01 is displayed superimposed on the wide range program table part W01. In the limited range program table part P01, when the program table graphic E01 is scrolled by the user operation, the display area is changed.

By thus generating the graphics data of the limited range program table part P01 as one rectangular graphics, it is possible to reduce the amount of data to be updated at the time of program information update or user operation.

Returning to the description of FIG. 1, the overall control section 108 controls the entire processing performed by the program table generating apparatus 100. For example, the overall control unit 108 causes the display unit 114 to display a specific screen by notifying the drawing unit 113 of the display instruction. In addition, the overall control unit 108 notifies the drawing unit 113 of a display switching instruction, thereby switching the screen displayed on the display unit 114. [ Further, the overall control unit 108 performs a process corresponding to the operation content in which the operation acceptance unit 103 has received the input.

The update determination unit 109 compares the program information obtained from the program information reception unit 102 with the program information stored in the program information storage unit 106 to update the program information obtained from the program information reception unit 102 Is determined. The update determination unit 109 updates the program information stored in the program information storage unit 106 based on the program information obtained from the program information reception unit 102 when there is an update.

The part generation unit 110 generates graphics data of a part constituting the program table screen PG. In particular, when the program information obtained from the program information reception unit 102 is updated, the part generation unit 110 generates graphics data of the part corresponding to the updated program information.

The display list generation unit 111 stores the graphics data generated by the part generation unit 110 in the video memory and also uses the graphics data of the part generated by the part generation unit 110 to display the program table screen PG 3), and generates a program table display list including the rendering definition for each part. Then, the display list generation unit 111 stores the generated program table display list in the video memory 112. [

5 is a schematic diagram showing an example of the data structure of the program table display list PL. The program table display list PL shows a drawing definition for drawing the program table screen PG using graphics of each part in each row. In the example of Fig. 5, the program table display list PL is composed of four parts of the graphics of the respective parts by the four parameters of the first column PL1, the second column PL2, the third column PL3 and the fourth column PL4 As well as the size and arrangement of the above-

The parameters of the first column PL1 indicate addresses on the video memory 112 in which the graphics data of the part corresponding to each row is stored.

The parameters of the second column PL2 represent the reference coordinates of the display effective area when the graphics of the part corresponding to each row are displayed on the program table screen PG.

The parameters of the third column PL3 indicate the width and height of the display effective area when the graphics of the part corresponding to each row are displayed on the program table screen PG.

The parameters of the fourth column PL4 represent reference coordinates at the time of drawing the graphics of the part corresponding to each row.

For example, the first line of FIG. 5 shows the rendering definition of the program table fixed part without updating, which does not need to update the display effective area. The graphics data of the program table fixing part is stored in the address "0x02800000" on the video memory 112. The reference coordinates of the graphics display effective area of the program table fixing part are "0x00000000" and x The width and height of the graphics display effective area of the program table fixed part of the program table fixed part are "0x07800438", the width is "1920 (pixels)" and the height is "1080 (pixels) and the graphics of the program table fixed part is drawn at the drawing reference coordinate "0x00000000", the x coordinate is "0", and the y coordinate is "0". The program table fixing part without updating corresponds to the part for displaying the program table background graphics B01 shown in Fig.

Similarly, the rendering definition of the program table fixed part with update that needs to update the display valid area is stored in the address " 0x02400000 " on the video memory 112, 1800 (pixels) " and height " 128 (pixels) ", and the reference coordinates for drawing graphics are " 0x00000000 " (0, 0). For example, the program table fixing part with the update is the first program table fixing part FUY01, the second program table fixing part FUY02 and the third program table fixing part FUX01 shown in Fig.

The drawing definition of the wide area program table part is such that the graphics data is stored in the address " 0x01000000 " on the video memory 112, and the display effective area when displaying on the display screen is , The width is "1600 (pixels)" and the height is "768 (pixels)", and the reference coordinates for drawing graphics are (0, 0).

The rendering definition of the limited range program table part is such that the graphics data is stored at the address " 0x02000000 " on the video memory 112, and the display effective area when displaying on the display screen is 256 256 , The width is "1600 (pixels)" and the height is "512 (pixels)", and the reference coordinates for drawing graphics are (0, 0).

The drawing definition of the visual date part is stored in the address " 0x02300000 " on the video memory 112, and the display effective area when displaying on the display screen is set to (1200, 32) The width is "640 (pixels)" and the height is "100 (pixels)", and the reference coordinates for drawing the graphics data are (0, 0). The time date part corresponds to the part for displaying the time information graphic T01 shown in Fig.

The display list generation unit 111 refers to the update information RD stored in the update information storage unit 105 and stores the rendering definition of the part having a low update frequency in a line near the head of the program table display list PL So as to generate the program table display list PL. In addition, since the program table fixing part does not need to update the graphics data itself, it is determined in advance that the update frequency is the lowest. Then, the rendering unit 113 arranges the graphics of the parts in order from the first row of the program table display list PL, so that the higher the update frequency of the program table screen PG is, the higher the part is located. Therefore, when an updated part is displayed, there is no need to change to another graphics that has not been updated, and the processing load upon update becomes light.

1, the video memory 112 stores the graphics data generated by the part generation unit 110, the display list generated by the display list generation unit 111, and the like.

6 is a schematic diagram showing an example of the structure of the video memory 112. As shown in Fig. The video memory 112 includes a frame buffer first area 112A, a frame buffer second area 112B, a program table display list first area 112C, a program table display list second area 112B, A wide area program table part first area 112D, a wide area program table part first area 112E, a wide area program table part second area 112F, a limited range program table part first area 112G, The time stamp part first area 112I, the time stamp part second area 112J, the program table fixing part first area 112K and the program table fixing part second area 112L ).

The frame buffer first area 112A and the frame buffer second area 112B store frame data of the program table screen PG drawn by the rendering unit 113. [ Here, the frame buffer first area 112A and the frame buffer second area 112B alternately store frame data. For example, when the frame buffer first area 112A stores frame data of the program table screen PG currently being displayed, the frame buffer second area 112B stores the frame data of the program table screen PG displayed next .

The program table display list first area 112C and the program table display list second area 112D store the program table display list PL generated by the display list generator 111. [ Here, the program table display list first area 112C and the program table display list second area 112D also alternately store the program table display list PL.

The wide area program table part first area 112E and the wide area program table part second area 112F store the graphics data of the wide range program table part generated in the part generation part 110. [ Here, the wide area program table part first area 112E and the wide area program table part second area 112F also alternately store the graphics data of the wide area program table part.

The limited range program table part first area 112G and the limited range program table part second area 112H store the graphics data of the limited range program table part generated by the part generation part 110. [ Here, the limited-range program table part first area 112G and the limited-range program table part second area 112H also alternately store the graphics data of the limited-range program table part.

The visual date part first area 112I and the visual date part second area 112J store the graphics data of the time date part generated by the part generation part 110. [ Here, the first date area part 112I and the second date area part 112J also alternately store the graphics data of the time date part.

The program table fixing part first area 112K stores the program table fixing part having the update generated by the part generating part 110. [

The program table fixing part second area 112L stores the program table fixing part without updating generated by the part generating part 110. [

Referring back to FIG. 1, the rendering unit 113 is a graphics engine that processes data in a vector format, and operates in response to an instruction from the control unit 107. FIG. For example, when receiving a display instruction or a switching instruction from the overall control unit 108 of the control unit 107, the rendering unit 113 generates, based on the display list developed in the designated video memory 112 from the overall control unit 108 , Graphics are drawn from the graphics data stored in the video memory 112, and the graphics are combined to generate screen data of the program table. Then, the rendering unit 113 gives the generated screen data to the display unit 114. [

The display unit 114 displays a screen based on the screen data obtained from the rendering unit 113. [

The control unit 107, the update information storage unit 105, the program information storage unit 106 and the rendering unit 113 may be implemented by a microprocessor such as a CPU, a ROM (Read Only Memory), a RAM An access memory), a timer circuit, an input / output interface, and a dedicated processing unit. The functions of all or a part of these control unit 107, update information storage unit 105, program information storage unit 106 and rendering unit 113 may be realized by hardware, Or may be realized by a microprocessor executing a computer program. The function of all or a part of the control unit 107, the update information storage unit 105, the program information storage unit 106 and the rendering unit 113 is a computer program (an executable file) The microprocessor can realize the function by loading and executing a computer program or a file in an executable format equivalent thereto from a computer-readable recording medium. The data storage unit 104 can be realized using a storage device such as a nonvolatile memory, a HDD (hard disk drive), or a reading device having an optical disk.

Hereinafter, the operation of the program table generating apparatus 100 having the above-described configuration will be described with reference to FIG. 7 and FIG.

7 is a flow chart schematically showing a process when the program table generating apparatus 100 updates a program table screen. The control unit 107 of the program table generating apparatus 100 starts the processing of Fig. 7 when the program information receiving unit 102 receives the program information.

First, the update determination unit 109 specifies the type of the program information received from the program information reception unit 102 (S10). If the specific type is " EIT_s ", the update determining unit 109 proceeds to the process of step S11. If the specific type is " EIT_p / f ", the process proceeds to step S16 , And if the specific category is " TOT ", the process proceeds to step S21.

In step S11, the update determination unit 109 compares the program information received from the program information reception unit 102 with the current program information stored in the program information storage unit 106, and determines whether there is an update . If there is an update (YES in step S11), the update determination unit 109 updates the content of the EIT_s in the program information storage unit 106 based on the program information received from the program information reception unit 102 do. Further, the update determination section 109 gives an instruction to generate the part corresponding to the part generation section 110, and proceeds to the processing of step S12. On the other hand, when there is no update (NO in step S11), the update determining unit 109 ends the process.

In step S12, the part generation unit 110 refers to the update information RD stored in the update information storage unit 105, and generates graphics data of the wide-range program table part based on the received program information.

Next, the display list generation unit 111 writes the graphics data generated in step S12 to a predetermined address of the video memory 112 (S13). For example, the display list generating unit 111 stores the graphics data of the wide-range program table part of the program table screen PG currently being displayed in the first area 112E of the wide-range program table part of the video memory 112 , The generated graphics data is written in the second area 112F of the wide area program table part.

Next, the display list generation unit 111 generates a program table display list for displaying the graphics data of the generated wide-range program table part (S14). For example, the display list generating unit 111 generates a program list of the currently displayed program table screen PG among the program table display list first area 112C and the program table display list second area 112D of the video memory 112 The program list display list is copied from the area in which the display list is stored to the other area. The display list generation unit 111 then stores the parameter of the first column PL1 of the rendering definition of the wide area program table part in the program table display list stored in the copied area as the video data of the video To the address on the memory 112.

Next, the overall control unit 108 changes the display contents by changing the program table display list referred to by the rendering unit 113 (step S15). The rendering unit 113 generates screen data based on the changed program table display list and outputs the generated screen data to the display unit 114 so that the updated program table screen PG is displayed on the display unit 114 .

On the other hand, when the type of program information specified by the update determination section 109 is " EIT_p / f " (step S10), the process of step S16 is performed.

In step S16, the update determination unit 109 compares the program information received from the program information reception unit 102 with the current program information stored in the program information storage unit 106, and determines whether there is an update . If there is an update (YES in step S16), on the basis of the program information received from the program information reception unit 102, the update determination unit 109 determines whether the contents of EIT_p / f in the program information storage unit 106 . Further, the update determination unit 109 gives an instruction to generate the part corresponding to the part generation unit 110, and the process proceeds to step S17. On the other hand, when there is no update (NO in step S16), the update determining unit 109 ends the process.

In step S17, the part generation unit 110 refers to the update information RD stored in the update information storage unit 105, and generates graphics data of the limited range program table part based on the received program information.

Next, the display list generation unit 111 writes the graphics data generated in step S17 to a predetermined address of the video memory 112 (S18). For example, the display list generation unit 111 stores the graphics data of the limited range program table part of the currently displayed program table screen PG in the limited area program table first area 112G of the video memory 112 , The generated graphics data is written into the limited area program table part second area 112H.

Next, the display list generation unit 111 generates a program table display list for displaying the graphics data of the generated limited-range program table part (S19). For example, the display list generating unit 111 generates a program list of the currently displayed program table screen PG among the program table display list first area 112C and the program table display list second area 112D of the video memory 112 The program table display list is copied from the area in which the display list is stored to the other area. The display list generation unit 111 stores the parameter of the first column PL1 of the rendering definition of the limited range program table part in the program table display list stored in the copied area as the video data of the video To the address on the memory 112. The display list generation unit 111 also updates the parameter of the third column PL3 of the rendering definition of the limited range program table part to display the value of the height of the limited range program table part generated in step S17. If the time displayed by the limited scope program table part generated in step S17 is updated, the display list generation unit 111 updates the parameter of the fourth column PL4 of the rendering definition of the limited scope program table part , And represents a value shifted by the number of pixels corresponding to the time after the update.

Next, the overall control unit 108 changes the display contents by changing the program table display list referred to by the rendering unit 113 (step S20). The rendering unit 113 generates screen data based on the changed program table display list and outputs the generated screen data to the display unit 114 so that the updated program table screen PG is displayed on the display unit 114 .

On the other hand, when the type of the program information specified by the update determination section 109 is " TOT " (step S10), the process of step S21 is performed.

In step S21, the update determination unit 109 compares the program information received from the program information reception unit 102 with the current program information stored in the program information storage unit 106, and determines whether there is an update . When there is an update (YES in step S21), the update determination unit 109 updates the contents of the TOT in the program information storage unit 106 based on the program information received from the program information reception unit 102 do. Further, the update determination unit 109 issues an instruction to generate the part corresponding to the part generation unit 110, and proceeds to the processing of step S22. On the other hand, when there is no update (NO in step S21), the update determining unit 109 ends the process.

In step S22, the part generation unit 110 refers to the update information RD stored in the update information storage unit 105, and generates graphics data of the time date part based on the received program information.

Next, the display list generation unit 111 writes the graphics data generated in step S22 to a predetermined address of the video memory 112 (S23). For example, when the graphics data of the time date part of the program table screen PG currently being displayed is stored in the first date area part 112I of the time date part of the video memory 112, And writes the generated graphics data in the date part second area 112J.

Next, the display list generating unit 111 generates a program table display list for displaying the graphics data of the generated time date part (S24). For example, the display list generating unit 111 generates a program list of the currently displayed program table screen PG among the program table display list first area 112C and the program table display list second area 112D of the video memory 112 The program table display list is copied from the area in which the display list is stored to the other area. The display list generation unit 111 then stores the parameters of the first column PL1 of the rendering definition of the time date part in the program table display list stored in the copied area in the video memory 112).

Next, the overall control unit 108 changes the display contents by changing the program table display list referred to by the rendering unit 113 (step S25). The rendering unit 113 generates screen data based on the changed program table display list and outputs the generated screen data to the display unit 114 so that the updated program table screen PG is displayed on the display unit 114 .

As described above, the program table generating apparatus 100 divides the program table screen PG to be displayed into a plurality of parts in accordance with the update frequency, displays the divided parts repeatedly in the order of high update frequency, and updates the program information , Only the graphics data of the part to be updated is updated so that the update frequency is low and the number of update of the part requiring a processor resource and time at the time of updating is reduced to realize a scroll operation with good user response It is possible.

FIG. 8 is a flowchart schematically showing a process when a user operation is performed in the program table generating apparatus 100. FIG. The control unit 107 starts the flow chart of Fig. 8 when the operation accepting unit 103 receives the contents of the operation.

First, the overall control unit 108 of the control unit 107 specifies the operation contents of the user notified by the operation reception unit 103 (S30). If the specified operation content indicates the end of the display of the program table, the overall control section 108 proceeds to the process of step S31. If the specified operation content indicates the start operation of the display of the program table, If the specified operation content indicates movement of the program table, the process proceeds to step S39.

In step S31, the overall control unit 108 notifies the drawing unit 113 of the display stop, thereby terminating the display of the program table screen PG. When switching the display content to another graphics screen, the overall control unit 108 switches the display list to be referred to by the rendering unit 113 to the display list of the graphics screen to be switched, The switching can be performed quickly.

On the other hand, when the operation content indicates the start operation (step S30), the overall control unit 108 proceeds to the processing of step S32.

In step S32, the part generation unit 110 generates graphics data of the program table fixed part. Here, the part generation unit 110 divides the program table fixed part by the presence or absence of the update. Graphics data, such as background and logo marks, which are always drawn in the correct position during the display of the program table screen PG, are created by combining them as one program table fixed part without updating. In addition, the part generation unit 110 does not update the graphics data itself such as the broadcasting station, the date and time, but the graphics data has a size corresponding to a plurality of screens. Based on the program table moving operation (scroll operation) The graphics data to which the display effective area is shifted is divided into respective parts in accordance with the moving direction and the moving amount, and is generated as graphics data of the respective program table fixed parts.

Next, the part generation unit 110 generates graphics data of a wide-range program table part based on the contents of EIT_s stored in the program information storage unit 106 (S33).

Next, the part generation unit 110 generates graphics data of the limited range program table part based on the contents of EIT_p / f stored in the program information storage unit 106 (S34).

Next, the part generation unit 110 generates graphics data of the time date part based on the contents of the TOT stored in the program information storage unit 106 (S35).

Then, the display list generation unit 111 writes the graphics data generated in the steps S32 to S35 in a predetermined area of the video memory 112 (S36).

The display list generation unit 111 refers to the update information stored in the update information storage unit 105 and arranges the generated graphics data to generate a program table display list PL And writes it in a predetermined area on the video memory 112 (S37). Here, the display list generation unit 111 generates a program table display list PL by storing the drawing definition of the part having a low update frequency in a line near the head of the program table display list PL. For example, of the program table fixed parts generated in step S32, the rendering definition of the program table fixed part without update is stored in the row closest to the head of the program table display list PL, and then the program table fixed In the part, the rendering definition of the program table fixing part with update is stored, then the rendering definition of the wide-area program table part generated in step S33 is stored, and then the definition area program The drawing definition of the table part is stored, and then the drawing definition of the time date part generated in step S35 is stored.

The control unit 107 performs program information update processing even when the program table screen PG is not displayed, and performs the processing from step S32 to step S37 only once at the start of the program table generating apparatus 100 It is good.

Next, the overall control unit 108 notifies the drawing unit 113 to change the display list to be referenced, thereby switching the display content (S38). The rendering unit 113 generates screen data based on the changed display list and outputs the generated screen data to the display unit 114 so that the program table screen PG is displayed on the display unit 114. [

On the other hand, when the operation content indicates movement of the program table (step S30), the overall control unit 108 proceeds to the process of step S39.

In step S39, the overall control unit 108 determines the moving direction and the moving amount in accordance with the contents of the operation. For example, the overall control unit 108 determines that the movement of the predetermined number of pixels in the x-axis direction is the movement of the object to be operated is the depression of the up and down keys. Further, when the operation content to be the object is the depression of the left and right keys, the overall control section 108 determines that the number of pixels moves in the y-axis direction by a certain amount. Further, when the target operation content is a key operation that moves for 6 hours, the overall control unit 108 determines that the number of pixels corresponding to 6 hours in the x-axis direction is shifted. When the contents of the operation to be the object are inputted through the interface such as the touch panel, the overall control unit 108 sets the start coordinates when touched on the operation screen and the start coordinates Axis component and the y-axis component are calculated based on the intermediate coordinates detected in the x-axis component and the y-axis component and the end coordinate in the release state, A value obtained by multiplying the ratio of the operation screen and the display screen may be calculated as the movement amount.

Next, at step S40, the display list generation unit 111 generates a display list of the programs currently displayed on the program list display list first area 112C and the program table display list second area 112D on the video memory 112 The program table display list PL is copied from the area in which the program table display list PL used in the table screen PG is stored and copied to the other area. The display list generation unit 111 shifts the display position by changing the parameter of the fourth column PL4 of the part which needs to be updated in the program table display list PL stored in the copied area. For example, the display list generation unit 111 shifts the reference coordinates for drawing the graphics data of the limited-range program table part by the movement amount calculated in step S39. Likewise, the display list generation unit 111 shifts the reference coordinates for drawing the graphics data of the wide-range program table part by the movement amount calculated in step S39. In addition, the display list generation unit 111 also shifts the reference coordinates to be drawn by the calculated movement amount, if necessary, with respect to the graphics data of the program table fixed part having the update. However, in the present embodiment, the display list generation unit 111 shifts only one of the x-axis direction and the y-axis direction with respect to the program table fixed part having the update.

Next, the overall control unit 108 changes the display contents referenced by the rendering unit 113 (S41). The rendering unit 113 generates screen data based on the changed display list, outputs the generated screen data to the display unit 114, and causes the display unit 114 to display the program table screen PG.

As described above, the program table generating apparatus 100 is constituted by a plurality of graphics data that exceeds the display area to actually display the program table display screen, and the program table generating apparatus 100 generates the program table The scroll display is performed by changing the coordinates. The program table generating apparatus 100 also divides the graphics data of the part constituting the program table screen PG based on the update frequency indicated by the update information RD stored in the update information storage unit 105, It is possible to reduce the number of generation of graphics data that requires a low update frequency and requires a long time to be generated by generating only the graphics data that has been updated based on the update determination of the graphics processing unit 109. [ Therefore, scroll display of the program table with good operation response can be performed.

In the embodiment described above, for example, as shown in Fig. 6, a plurality of areas for storing the program table display list are provided in the video memory 112, and each time the program table display list is updated The display list generating unit 111 may be configured to switch the display area of the currently displayed program such as when the drawing unit 113 can recognize the timing of obtaining the program table display list, The parameters stored in the program table display list used in the table screen PG may be directly changed.

In the above embodiment, the present invention is applied to the program table generating apparatus 100, but the present invention may be applied to other apparatuses such as a video receiving apparatus, a video receiving display apparatus, a video storage reproducing apparatus, and the like.

100: program table generating device
101: reception processor
102: Program information reception section
103: Operation reception unit
104: Data storage unit
105:
106: Program information storage unit
107:
108:
109:
110:
111: Display list generation unit
112: Video memory
113:
114:

Claims (18)

A part generation unit for generating graphics data of parts constituting a program table screen,
A display list generation unit that generates a display list including a rendering definition that defines definitions for rendering the program table screen using the graphics data for each part;
A rendering unit configured to generate screen data of the program table screen using the graphics data according to the rendering definition;
An update information storage unit for storing update information including a type of program information necessary for constructing the program table screen and part identification information indicating a part generated from the program information of the type;
A program information accepting unit for acquiring the program information from the program arrangement information separated from the digital broadcast wave;
An update judging section for judging whether or not the program information has been updated;
And,
Wherein the part generation unit specifies a part corresponding to the type of the updated program information from the update information when the program information is updated in the update determination unit, From the updated program information,
The display list generation unit updates the display list so that the drawing definition of the specified part draws the program table screen using the graphics data generated from the updated program information,
Wherein the rendering unit generates screen data of the program table screen in accordance with the updated display list
Wherein the program table generation unit comprises:
The method according to claim 1,
Wherein the type of the program information includes limited range program information including information on a current program and a next program and information on a program larger than the limited range program information and the update frequency includes an update frequency of the limited range program information Wherein the program information is lower-range program information.
The method according to claim 1,
Further comprising a video memory for storing the graphics data,
Wherein the rendering definition defines an arrangement and size of an address at which the video memory stores the graphics data and a layout and a size of graphics obtained from the graphics data in the program table screen,
Wherein the video memory stores graphics data generated from the updated program information,
Wherein the display list generation unit generates the display list of the specified part based on the graphics data generated from the updated program information by using the address stored in the video memory and the graphics obtained from the graphics data generated from the updated program information The display list is updated so as to indicate the arrangement and size in the program table screen
Wherein the program table generation unit generates the program table.
The method of claim 3,
And a display unit for displaying the program table screen based on the screen data.
5. The method of claim 4,
Even when the display unit is not displaying the program table screen,
Wherein the program information accepting unit acquires the program information,
Wherein the update determination unit determines whether or not the program information is updated,
Wherein the part generation unit generates graphics data of the specified part from the updated program information when it is determined in the update determination unit that the program information has been updated,
Wherein the video memory stores graphics data generated from the updated program information,
The display list generation unit may be configured to update the display list
Wherein the program table generation unit generates the program table.
6. The method according to any one of claims 1 to 5,
Wherein the update information further includes update frequency information indicating the update frequency of the part,
The display list generation unit generates the display list such that the graphics data of the part having the high update frequency is arranged in a higher layer
Wherein the program table generation unit generates the program table.
The method according to claim 6,
Wherein the part generating unit makes at least a part of the graphics given from the graphics data of the part arranged on the upper layer of the graphics data of a part transparent.
The method according to any one of claims 1, 2, 3, 4, 5, and 7,
Further comprising an operation accepting section for accepting an input of a scroll operation,
The display list generation unit updates the display list by changing the arrangement of the graphics obtained from the graphics data on the program table screen in accordance with the scroll direction and the scroll amount of the scroll operation
Wherein the program table generation unit generates the program table.
9. The method of claim 8,
And an overall control unit for calculating the scroll direction and the scroll amount from the start coordinates of the scroll operation, the intermediate coordinates in the scroll operation, and the end coordinates in which the scroll operation is completed, in which the operation acceptance unit input is received Wherein the program table generating apparatus comprises:
A part generation step of generating graphics data of parts constituting a program table screen,
A display list generating step of generating a display list including a rendering definition that defines a definition for rendering the program table screen using the graphics data for each part;
A drawing step of generating screen data of the program table screen using the graphics data according to the drawing definition;
A program information accepting step of acquiring program information necessary for composing the program table screen from the program arrangement information separated from the digital broadcast wave;
An update determining step of determining whether or not the program information is updated;
Wherein said control unit specifies the part corresponding to the type of the updated program information from the update information when the program information is determined to have been updated in the update determining step, A part updating process to be performed,
A display list updating step of updating the display list so that the rendering definition of the specified part can render the program table screen using graphics data generated from the updated program information;
A drawing updating process of generating screen data of the program table screen in accordance with the updated display list
And generating the program table.
11. The method of claim 10,
Wherein the type of the program information includes limited range program information including information on a current program and a next program and information on a program larger than the limited range program information and the update frequency includes an update frequency of the limited range program information Lt; RTI ID = 0.0 > program information. ≪ / RTI >
11. The method of claim 10,
Wherein the rendering definition defines an arrangement and a size of an address at which the video memory stores the graphics data and a layout and a size of graphics obtained from the graphics data in the program table screen,
Wherein the video memory further has a storing step of storing graphics data generated from the updated program information,
Wherein the display list updating step is a step of updating the display list of the specified part based on the graphics data generated from the updated program information in accordance with the address stored in the video memory and the graphics obtained from the graphics data generated from the updated program information The display list is updated so as to indicate the arrangement and size of the program table screen
And generating the program table.
13. The method of claim 12,
Further comprising a display step of displaying the program table screen based on the screen data.
14. The method of claim 13,
The program information receiving step, the update determining step, the part updating step, the storing step, and the display list generating step are performed even when the program table screen is not displayed in the displaying step A program table generation method characterized by:
15. The method according to any one of claims 10 to 14,
Wherein the update information further includes update frequency information indicating the update frequency of the part,
The display list generation step generates the display list so that the graphics data of the part having the high update frequency is arranged in a higher layer
And generating the program table.
16. The method of claim 15,
Wherein the part creating step makes at least a part of a part disposed on an upper layer of a part transparent.
The method according to any one of claims 10, 11, 12, 13, 14, and 16,
Further comprising an operation accepting step of accepting an input of a scroll operation,
The display list updating step updates the display list by changing the arrangement of the graphics obtained from the graphics data on the program table screen according to the scroll direction and the scroll amount of the scroll operation
And generating the program table.
18. The method of claim 17,
Further comprising a calculating step of calculating the scroll direction and the scroll amount from the start coordinates of the scroll operation, the intermediate coordinates in the scroll operation, and the end coordinates in which the scroll operation is completed, the input being received in the operation acceptance step A program table generation method characterized by:

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