Patent Grant
7712116
The present application is a national stage application under 35 U.S.C. § 371 of International Application No. PCT/JP03/06404, filed May 22, 2003, which claims priority from Japanese Application No. P2002-148650, filed May 23, 2002, the disclosures of which are incorporated herein by reference.
The present invention relates to a program-display control apparatus and a program-display control method which are used for displaying a table of television-broadcast programs and/or a table of web programs. More particularly, the present invention relates to a program-display control apparatus and a program-display control method which are used for displaying a table of television-broadcast programs transmitted by way of a satellite, a table of television-broadcast programs transmitted by ground waves and/or a table of web programs.
Traditionally, a program table is announced to the audience through radio and television columns in a newspaper or a magazine. A program table is a table of scheduled programs of BS (Broadcast Satellite) digital broadcasts or ground wave broadcasts. A BS digital broadcast is a television broadcast transmitted by adopting a digital method by way of a BS. On the other hand, a ground wave broadcast is a television broadcast transmitted by adopting an analog method using a ground wave. In addition, in recent years, a program table transmitted from a television broadcasting station as a program table having a radio/television column format can be displayed on the screen of an apparatus such as a television receiver or a personal computer. As an example of such a program table, an EPG (Electronic Program Guide) produced by Gemstar Corporation is widely known. There are two methods of displaying a program table having a radio/television column format. The two methods are referred to as a program-table display method of a program-frame type and a program-table display method of a time-frame type, respectively. In accordance with either of the methods, the horizontal axis of the screen represents channels or corporation names and the vertical axis represents the time.
However, the conventional program-display control apparatus and the conventional program-display control method have a problem that information on each program cannot be displayed in a format which can be recognized by the user with ease because the data of the program table is configured to be displayed in an EPG format.
For example, with the conventional technology, a program table of a BS digital broadcast cannot be displayed on the same screen as a program table of a ground wave broadcast. Thus, the user must switch the screen from the program table of a BS digital broadcast to the program table of a ground wave broadcast in order to inspect the latter or vice versa. As a result, in order to make a video-recording reservation, the user may need to carry out a very cumbersome operation of switching the screen from the program table of a BS digital broadcast to the program table of a ground wave broadcast. In addition, in recent years, a program table of web programs is also being distributed to the audience. It is also necessary to display the program table of web programs at the same time as the program tables of broadcasts.
On top of that, with the conventional technology, it may be impossible to display information on programs on a displayed table of the programs. The information on a program includes the name and description of the program.
In the case of the program-frame type, the program table has a configuration in which the name of the last program in the time period of one hour and information on the program are always displayed and, in addition, the name of the program having the longest broadcast period in the time period of one hour and information on the longest program are displayed. In the case of the example shown in
In the case of BS digital broadcasting, programs sharing an event may be broadcast by using a plurality of channels each allocated to one of the programs. In such a case, a large amount of picture data is transmitted through a broad band accommodating the used channels. Thus, it is possible to display a picture having a higher quality than a picture transmitted using only a single channel. With the conventional technology, however, a program table cannot be displayed by placing emphasis on the shared-event programs, each serving as a characteristic program. Thus, the conventional technology does not give a configuration that can be recognized by the user with ease.
In addition, for example, the transmission format of BS digital broadcasts allows information on up to three genres to be added for each program. Since the Association of Radio Industries and Businesses, named ARIB, does not prescribe an order in which the three genres are to be broadcast, however, in accordance with the conventional technology, a first genre in the transmission order is displayed in the program table as a program attribute. Thus, the conventional technology has a problem that, even if a genre which the user wants to see is included in a program, the genre may not be displayed in the program table so that, in this case, the user overlooks the program or misses a video-recording reservation for the program. That is to say, the conventional technology does not give a configuration that allows the user to recognize the genre display of a program with ease.
On the top of that, the transmission format of ground wave broadcasts allows information on only one genre to be added for each program. Thus, the data structure of the EPG information in ground wave broadcasts is different from the data structure of the EPG information in BS digital broadcasts. Thus, even if the genre of a program of a ground wave broadcast is the same as the genre of a program of a BS digital broadcast, the genres cannot be displayed in the same format.
It is thus an object of the present invention addressing the problems described above to provide a program-display control apparatus and a program-display control method which are capable of displaying information on each program in a state easily recognizable to the user without regard to the configuration used to display program-table data included in a received television broadcast signal.
In order to achieve the object described above, the program-display control apparatus provided by the present invention includes a storage unit operable to store program-table data having a predetermined display configuration; a display-configuration modification unit operable to change the display configuration of the program-table data read out from the storage unit to a new display configuration in accordance with a display-configuration modification command; a program-table creation unit operable to create data of a program table on the basis of the new display configuration and to output the data to a predetermined display; and a display line comparison unit operable to compare a number of programs in a time frame with a maximum number of display lines that can be included in the time frame. If the number of programs in the time frame is smaller than the maximum number of display lines, the display-configuration modification unit finds a display-line count of each individual program in the time frame as a quantity proportional to a time duration of the individual program and allocates as many display lines to each individual program in the time frame as indicated by the display-line count found for the individual program in a descending-duration order starting with a program having a longest time duration. If the number of programs in the time frame is equal to the maximum number of display lines, the display-configuration modification unit allocates display lines composing a minimum display-area unit to each of the programs. If the number of programs in the time frame is greater than the maximum number of display lines, the display-configuration modification unit displays an identifier for indicating that undisplayed programs exist and allocates remaining lines composing the minimum display-area unit to each of the programs in a descending-duration order starting with a program having a longest time duration.
In addition, if a shared-event program exists in a plurality of reception channels, the display-configuration modification unit may change the display configuration of the shared-event program to a display configuration in which the shared-event program is displayed in an area spread over the plurality of reception channels.
In addition, if a time frame of the shared-event program in any one of the plurality of reception channels does not overlap a time frame of the shared-event program in any other one of the plurality of reception channels, the display-configuration modification unit may change the display configuration of the shared-event program to a display configuration in which the shared-event program is displayed on display lines composing a minimum display-area unit in an area spread over the plurality of reception channels.
In addition, the display-configuration modification unit may be further operable to assign a priority level to each of various pieces of genre information in accordance with a display-configuration modification command, the pieces of genre information identifying the genre of a program; select one of a plurality of pieces of genre information for a program on the basis of the priority levels assigned to the pieces of genre information if the pieces of genre information pertain to the program; and change the display configurations of programs to a display configuration in which genres of the programs are displayed on the basis of the priority levels assigned to the pieces of genre information.
In addition, the display-configuration modification unit may be operable to assign a priority level to each piece of genre information and each background display configuration in accordance with a display-configuration modification command; and change the display configurations of programs to a display configuration in which the genre information and the background display configuration of each of the programs are displayed on the basis of the priority level assigned to the piece of genre information and the background display configuration.
In addition, the storage unit may include a first storage area operable to store first program-table data having a data configuration and a second storage area operable to store second program-table data having a data configuration different from the data configuration of the first program-table data; and the display-configuration modification unit may change the display configuration of the first program-table data stored in the first storage area and the display configuration of the second program-table data stored in the second storage area to a display configuration in which the first program-table data and the second program-table data are displayed on the same screen at the same time.
In addition, the storage unit may include a first storage area operable to store data of a program table of a satellite broadcast and a second storage area operable to store at least one of data of a program table of a ground wave broadcast and data of a web program table; and the display-configuration modification unit may change the display configuration of the data of a program table of a satellite broadcast stored in the first storage area and the display configuration of the at least one of the data of a program table of a ground wave broadcast and the data of a web program table stored in the second storage area to a display configuration in which the data of a program table of a satellite broadcast and the at least one of the data of a program table of a ground wave broadcast and the data of a web program table are displayed on the same screen at the same time.
In addition, if a first program of a satellite broadcast has a first genre having a first display configuration, and at least one of a second program of a ground wave broadcast and a web program has a second genre having a second display configuration, the second genre being the same as the first genre but the first display configuration being different from the second display configuration, the display-configuration modification unit may change at least one of the display configurations so that the first and second genres have a uniform display configuration.
In addition, if a command to enlarge a program of a displayed program table is received, the display-configuration modification unit may change the display configuration of the program to a display configuration in which the display of the program is enlarged.
In addition, in processing the command to enlarge the program, if a present enlargement stage has not reached a maximum enlargement stage, the display-configuration modification unit may increase the present enlargement stage by a predetermined stage increment to set the present enlargement stage at a higher level and may change the display configuration of the program table to a display configuration in which the program table is enlarged to an enlargement stage set at the higher level; and if the present enlargement stage has reached the maximum enlargement stage, the display-configuration modification unit may change the display configuration of the program table to a display configuration in which a message is displayed stating that the present enlargement stage has reached the maximum enlargement stage.
In addition, the display-configuration modification unit may gradually enlarge the display of the program by displaying a plurality of animations in a time period between a present enlargement stage and a next enlargement stage in a process to change the present enlargement stage to the next enlargement stage.
A program-display control method provided by the present invention includes storing program-table data having a predetermined display configuration; changing the display configuration of the stored program-table data to a new display configuration in accordance with a display-configuration modification command; creating data of a program table on the basis of the new display configuration and outputting the data to a predetermined display; and comparing a number of programs in a time frame with a maximum number of display lines that can be included in the time frame. If the number of programs in the time frame is smaller than the maximum number of display lines, the changing step includes finding a display-line count of each individual program in the time frame as a quantity proportional to a time duration of the individual program and allocating as many display lines to each individual program in the time frame as indicated by the display-line count found for the individual program in a descending-duration order starting with a program having a longest time duration. If the number of programs in the time frame is equal to the maximum number of display lines, the changing step includes allocating display lines composing a minimum display-area unit to each of the programs. If the number of programs in the time frame is greater than the maximum number of display lines, the changing step includes displaying an identifier for indicating that undisplayed programs exist and allocating remaining lines composing the minimum display-area unit to each of the programs in a descending-duration order starting with a program having a longest time duration.
In addition, if a shared-event program exists in a plurality of reception channels, the changing step may include changing the display configuration of the shared-event program to a display configuration in which the shared-event program is displayed in an area spread over the plurality of reception channels.
In addition, if a time frame of the shared-event program in any one of the plurality of reception channels does not overlap a time frame of the shared-event program in any other one of the plurality of reception channels, the changing step may include changing the display configuration of the shared-event program to a display configuration in which the shared-event program is displayed on display lines composing a minimum display-area unit in an area spread over the plurality of reception channels.
In addition, the changing step may include assigning a priority level to each of various pieces of genre information in accordance with a display-configuration modification command, the pieces of genre information identifying the genre of a program; selecting one of a plurality of pieces of genre information for a program on the basis of the priority levels assigned to the pieces of genre information if the pieces of genre information pertain to the program; and changing the display configurations of programs to a display configuration in which genres of the programs are displayed on the basis of the priority levels assigned to the pieces of genre information.
In addition, the changing step may include assigning a priority level to each piece of genre information and each background display configuration in accordance with a display-configuration modification command; and changing the display configurations of programs to a display configuration in which the genre information and the background display configuration of each of the programs are displayed on the basis of the priority level assigned to the piece of genre information and the background display configuration.
In addition, the storing step may include storing first program-table data having a data configuration in a first storage area and storing second program-table data having a data configuration different from the data configuration of the first program-table data in a second storage area; and the changing step may include changing the display configuration of the first program-table data stored in the first storage area and the display configuration of the second program-table data stored in the second storage area to a display configuration in which the first program-table data and the second program-table data are displayed on the same screen at the same time.
In addition, the storing step may include storing data of a program table of a satellite broadcast in a first storage area and storing at least one of data of a program table of a ground wave broadcast and data of a web program table in a second storage area; and the changing step may include changing the display configuration of the data of a program table of a satellite broadcast stored in the first storage area and the display configuration of the at least one of the data of a program table of a ground wave broadcast and the data of a web program table stored in the second storage area to a display configuration in which the data of a program table of a satellite broadcast and the at least one of the data of a program table of a ground wave broadcast and the data of a web program table are displayed on the same screen at the same time.
In addition, if a first program of a satellite broadcast has a first genre having a first display configuration, and at least one of a second program of a ground wave broadcast and a web program has a second genre having a second display configuration, the second genre being the same as the first genre but the first display configuration being different from the second display configuration, the changing step may include changing at least one of the first and second display configurations so that the first and second genres have a uniform display configuration.
In addition, if a command to enlarge a program of a displayed program table is received, the changing step may include changing the display configuration of the program to a display configuration in which the display of the program is enlarged.
In addition, in processing the command to enlarge the program, if a present enlargement stage has not reached a maximum enlargement stage, the changing step may include increasing the present enlargement stage by a predetermined stage increment to set the present enlargement stage at a higher level and changing the display configuration of the program table to a display configuration in which the program table is enlarged to an enlargement stage set at the higher level; and if the present enlargement stage has reached the maximum enlargement stage, the changing step may include changing the display configuration of the program table to a display configuration in which a message is displayed stating that the present enlargement stage has reached the maximum enlargement stage.
In addition, the changing step may include gradually enlarging the display of the program by displaying a plurality of animations in a time period between a present enlargement stage and a next enlargement stage in a process to change the present enlargement stage to the next enlargement stage.
By taking a television receiver for receiving BS digital broadcasts (satellite broadcasts), ground wave broadcasts and/or web distributions as an example, the following description explains program-display control apparatus implemented by first to fifth embodiments of the present invention with reference to the drawings.
A program-table creation unit 8 (program-table creation means) generates display data on the basis of the program-table data received from the first program-table data memory 3 as well as the second program-table data memory 7, outputting the display data to a picture synthesis unit, an NTSC encoder and display means, which is typically a monitor. The picture synthesis unit, the NTSC encoder and the display means are also not shown in the figure. More particularly, the program-table creation unit 8 creates display data for displaying both a program table of a satellite broadcast or a BS digital broadcast and either a program table of a ground wave broadcast or a web program table at the same time on the monitor on the basis of program-table data received from the first program-table data memory 3 (the first storage means) and on the basis of program-table data received from the second program-table data memory 7 (the second storage means), respectively, outputting the created display data to the display means which is not shown in the figure as described above.
In conjunction with control means not shown in the figure, a display-configuration modification unit 9 reads out program-table data from the first program-table data memory 3 and the second program-table data memory 7, and changes the display configurations of the program-table data. Typically, the control means is a CPU. A character-string register 10 serves as a register for temporarily storing data of a character string to be processed by the display-configuration modification unit 9.
A program table displayed on the monitor employed in the television receiver shows information on programs, a variety of menu icons and a cursor, which is typically an inverted display of the icons. The user is allowed to make a program reservation and carry out an operation unique to the present invention by using a remote controller. The television receiver employs the aforementioned control means for controlling the entire television receiver and a variety of other configuration elements. However, the control means and the other configuration elements each have an ordinary configuration and are not directly related to the present invention. For this reason, their explanation is omitted and they are shown in none of the figures.
The following description explains the operations carried out to execute a program-display control method provided by the first embodiment.
The flowchart shown in
Subsequently, at the next step S3, the value of N is compared with the value of L to determine whether the value of N is smaller than or equal to the value of L. If the value of N is greater than the value of L, information on the programs cannot be displayed for all the programs. In such case, the flow of the control goes on to step S4 at which program-display concealment marks are displayed at predetermined locations. The program-display concealment marks each indicate that some programs that cannot be displayed exist. Pieces of information on programs are each displayed on a line of the rest of the screen in descending broadcasting time order (and in an order of earlier starting time). However, the first and last programs in this one-hour frame are always displayed.
If the value of N is smaller than or equal to the value of L, on the other hand, information on each of the programs can be displayed on at least a line. In this case, the flow of the control goes on to step S5 at which a maximum display line count M for a program is found in accordance with the equation given below. The maximum display line count M is the maximum number of display lines which a character string representing information on a program is allowed to occupy.
M=L−N+1
Since a character string for each of the programs can be displayed on at least a line, the value of the difference (L−N) is the number of display lines remaining after a line is allocated to each of the programs. Thus, the maximum display line count M is the sum of the number of remaining lines and 1.
Then, at the next step S6, the number of display lines allocated to each of the programs is found as a quantity proportional to the broadcasting time of the program in accordance with the following equation:
line=(T/Ttotal)×L
where notation ‘line’ denotes the number of display lines allocated to a program, symbol T denotes the broadcasting time of the program and symbol Ttotal denotes the broadcasting time of the entire frame. In this case, since Ttotal is 60 minutes, the above equation can be rewritten as follows:
line=(T/60)×L
Then, at the next step S7, a largest display-line count linemax among the display-line counts (line) for the programs is found by rounding. Subsequently, at the next step S8, the largest display-line count linemax is compared with the maximum display line count M to determine whether or not the largest display-line count linemax is greater than the maximum display line count M.
If the largest display-line count linemax is greater than the maximum display line count M, the largest display-line count linemax is replaced with the maximum display line count M at step S9. If the largest display-line count linemax is not greater than the maximum display line count M, on the other hand, the largest display-line count linemax is not replaced with the maximum display line count M, but is used as is in displaying information on a program. Then, at the next step S10, the number of display lines for displaying the character string of a program having the longest time among all the remaining programs is set at the largest display-line count linemax. Subsequently, at the next step S11, this number of display lines is stored in its corresponding line-count register. Assume, for example, that the program having the longest time among all the remaining programs is program (i). In such case, the largest display-line count linemax is stored in the corresponding line-count register.
Then, at the next step S12, the values of L and N are updated in accordance with the following equations:
L=L−linemax
N=N−1
That is to say, the value of L is updated to the number of display lines remaining in the one-hour frame, that is, the number of usable remaining lines. In addition, since the line count of a program has been set at step S10, this program is excluded from the number of presently remaining programs by decrementing the value of N.
Subsequently, at the next step S13, the value of L is compared with the value of N to determine whether the value of L is equal to the value of N, that is, whether the usable-line count L is equal to the remaining-program count N. If the usable-line count L is equal to the remaining-program count N, each of the remaining programs is displayed on one line at step S14. Then, at the next step S15, the number of display lines for each of the remaining programs is stored in a register for the respective program. Finally, the execution of the control represented by this flowchart is ended. In the case of a program for which a program-display concealment mark is displayed at step S4, a line count of 0.5 is stored in a register for this program at step S15. On the other hand, a line count of 1 is stored in a register for each other program.
If the usable-line count L is found to be unequal to the remaining-program count N at step S13, that is, the usable-line count L is greater than the remaining-program count N, on the other hand, the presently remaining programs include at least a program to which two or more lines for writing a character string can be allocated. In this case, the flow of the control goes back to step S5 to execute a loop between this step and step S13 repeatedly until the value of L becomes equal to the value of N.
It is to be noted that the decremented value of N may become equal to 0 as is the case with the following example. Assume that the line count L in the one-hour frame is 6 and the program count N in the same frame is 2 representing programs A and B. Let the time durations of programs A and B be 36 and 24 minutes respectively. In this case, four lines are allocated to program A. Then, in a second loop, the remaining two lines are allocated to program B. After the remaining two lines are allocated to program B, the decremented value of N becomes equal to 0 at step S12, indicating that there is no longer a remaining program. Thus, the processes of steps S14 and S15 are not carried out. That is to say, it is possible to provide a configuration in which, when the decremented value of N becomes equal to 0 at step S12, the execution of the control represented by this flowchart is ended.
Next, the program-display control represented by the flowchart shown in
In the case of the program examples shown in
M=6−4+1=3.
Then, the number of display lines allocated to each of the programs is found as a quantity proportional to the broadcasting time of the program as follows:
Then, at the next step S7, a largest display-line count linemax among the display-line counts (line) for the programs is found by rounding to be 4 for program C. Since linemax is greater than the M value of 3, linemax is replaced with 3 at the step S9. As a result, three lines are allocated to program C. Then, as a result of the computation carried out at step S12, the values of L and N both become 3. Thus, the flow of the control goes on from step S13 to step S14 at which a one-line character string is allocated to each of the remaining programs A, B and D. The resulting program table is shown in
In the case of the program examples shown in
M=6−3+1=4.
Then, the number of display lines allocated to each of the programs is found as a quantity proportional to the broadcasting time of the program as follows:
Then, at the next step S7, a largest display-line count linemax among the display-line counts (line) for the programs is found by rounding to be 3 for program B. Since linemax is less than the M value, linemax of 3 is used as is. As a result, three lines are allocated to program B. Then, as a result of the computation carried out at step S12, L (=3) is found greater (>) than N (=2). In this case, the flow of the control goes from step S13 back to step S5 to repeat a loop between this step and step S13.
As a result, the values of M, L and N become 2, 3 and 2, respectively. Thus, the number of display lines allocated to each of the remaining programs A and C is found as a quantity proportional to the broadcasting time of the program as follows:
Then, at the next step S7, a largest display-line count linemax among the display-line counts (line) for the remaining programs is found by rounding to be 3 for program C. Since linemax is greater than the M value of 2, linemax is replaced with 2 at step S9. As a result, 2 lines are allocated to program C. Then, as a result of the computation carried out at step S12, a 1-line character string is allocated to remaining program A. A resulting program table is shown in
In the case of the program examples shown in
As described above, with the conventional display configuration of a program frame or a time frame, information on a program having a short broadcasting time cannot be displayed. In accordance with the first embodiment, however, the conventional display configuration is changed to a display configuration in which the amount of information on each program is increased by widening the display area allocated to the program. Thus, it is possible to provide an effect of a capability of displaying information on each program in a format that can be recognized by the user with ease without being restricted to the display configuration of the program display data included in a received television broadcast signal.
For example, by executing the program-display control provided by the first embodiment, display areas allocated to programs A and C in typical conventional displays shown in
The following description explains a second embodiment for displaying a program table showing a program of a shared event as a program received through a plurality of channels. The second embodiment is an application of the program-display control apparatus implemented by the first embodiment shown in
In this case, the flow of the control then goes on to step S22 to determine whether the display channels, that is, a plurality of presently specified channels, each include programs, the number of which exceeds the maximum display line count. If the number of programs in each of the channels does not exceed the maximum display line count, at step S23, program frames are computed for each individual channel by adoption of the program display control method shown in
Then, the flow of the control goes on to step S24 to determine whether all shared-event programs of a channel have time frames overlapping the time frames of the shared-event programs in other channels. If all shared-event programs of a channel have time frames overlapping the time frames of the shared-event programs in the other channels, the flow of the control goes to step S25 at which the shared-event programs are displayed, taking precedence of other programs. In addition, a link for such a case is computed in accordance with computation pattern α. In accordance with computation pattern α, program frames of the overlapping time frames of the shared-event programs are linked to each other.
If even a single shared-event program of a channel exists with the time frame thereof not overlapping the shared-event program in other channels, the flow of the control goes to step S26 at which the shared-event program is displayed on one line. In addition, a link for such a case is computed in accordance with computation pattern β. In accordance with computation pattern β, the number of programs between 00 minutes of the one-hour frame and the first shared-event program is first computed. Then, by taking the number of such programs as a reference, the positions of the programs are adjusted by using program-display concealment marks. By carrying out these processes repeatedly, programs are displayed one after another. If the number of programs is greater than the maximum display-line count L, programs succeeding shared-event programs are each displayed as a program-display concealment mark. If a plurality of shared-event programs exist in the one-hour frame with the shared-event programs separated from each other by another program, the number of program-display concealment marks becomes odd, making it impossible to match the maximum display line count L of the one-hour frame. In this case, the positions of programs are adjusted by displaying a shared-event program on 1.5 lines.
By referring to the examples shown in
In the example shown in
In the case of the example shown in
In the case of the example shown in
As described above, in accordance with the second embodiment, if a plurality of receiving channels include a shared-event program, the shared-event program is displayed in an area spread over program-display areas allocated to the channels. Thus, the second embodiment provides an effect that information on programs can be displayed by placing emphasis on this special shared-event program and reflecting this special program in the program table in a state that can be recognized by the user with ease.
The second embodiment has a display configuration in which two channels have shared-event programs as described above. It is to be noted that the above description can also be applied to a display configuration in which three or more channels have shared-event programs. In such case, if channels having a shared-event program are adjacent to each other, the program is displayed in a contiguous (seamless) area spread over areas allocated to the channels. As a matter of fact, there are many cases in which an event is shared by adjacent channels.
Assume, for example, that three adjacent channels 141, 142 and 143 are used for broadcasting shared-event program D as shown in
Next, a third embodiment of the present invention is explained by referring to
A program may include mixed content of a plurality of genres. Even in the case of such a program, transmitted EPG information of a ground wave broadcast includes display data of information on only 1 genre for the program. An example of the information on only 1 genre is information on the genre of the representative content of the program. In the case of EPG information of a BS digital broadcast, on the other hand, for a program including mixed content of a plurality of genres, display data of information on up to three genres is transmitted. Since the order of the transmitted pieces of genre information is not specially prescribed, however, the pieces of genre information are transmitted in an order unrelated to a broadcast order of the genres in the program.
The following description explains operations carried out to execute a program-display control method adopted in the third embodiment.
The loop begins with step S33 to determine whether the user has carried out an operation of a remote controller to specify a genre and its background color. If a genre and its background color have been specified, the genre and its background color are stored in a register P (n, j, k) of the user priority-level memory 12 at step S34, where symbol j denotes a number assigned to the specified genre and symbol k denotes a number assigned to the specified background color. Then, at the next step S35, the value of the pointer n is incremented. Subsequently, at the next step S36, the value of the pointer n is compared with a maximum value nmax of the genre priority level to determine whether the value of the pointer n is greater than the maximum value nmax. In this embodiment, the maximum value nmax is set at a typical value of 3. If the value of the pointer n is not greater than the maximum value nmax, the flow of the control goes back to step S33 to determine whether the user has carried out an operation to specify a next genre and its background color. If the value of the pointer n is greater than the maximum value nmax, on the other hand, the execution of the control represented by this flowchart is ended.
It is to be noted that, if ordinary genre background colors are specified, a table associating numbers assigned to specified genres with numbers assigned to specified background colors is stored in a register of the first program-table data memory 3. For example, different background colors can be specified for up to five different genres. In this case, data associating the five genres with their background colors is stored in the register of the first program-table data memory 3. Thus, if information on prioritized genres is specified in the processing represented by the flowchart shown in
After priority levels assigned to genres are set, programs of each channel are specified one after another. If a specified program has two or more pieces of genre information, the user priority-level memory 12 is searched for a register including any of the pieces of genre information. That is to say, the registers of the user priority-level memory 12 are examined, starting with the register P (l, j, k) for storing the specified genre having the highest priority level, in order to determine whether the register includes information on a prioritized genre as information corresponding to any piece of genre information of the program. If the register includes the information on the corresponding prioritized genre, the program is set on a background color associated with the genre. If a specified program has only one piece of genre information or if a specified program has 2 or more pieces of genre information but the pieces of genre information do not match any information on a prioritized genre, on the other hand, a background color for each genre is determined on the basis of the data stored in the first program-table data memory 3. The program-table creation unit 8 creates display data of each program and display data of a background for the program for every channel, and outputs the created display data.
Assume for example that, as shown in
As described above, in accordance with the third embodiment, a priority level is assigned to each genre information, which can have a plurality of different types each used for identifying the genre of a program. If a plurality of different types of genre information pertain to a program, genre information having the highest priority level assigned thereto is selected without regard to the order in which the different types of genre information are received. Then, display data of the genre indicated by the selected genre information is created. Thus, when a genre which the user wants to see is included in a program, by assigning a highest priority level to the genre, the genre can be displayed. As a result, the embodiment exhibits an effect that a genre of a program can be displayed in accordance with a priority level that can be recognized with ease by the user.
Next, a fourth embodiment of the present invention is explained by referring to
There is a difference in EPG-information transmission method as well as a difference in data format between genre information for identifying genres of programs in program-table data of a ground wave broadcast and/or genres of programs in web program-table data and genre information for identifying genres of programs in program-table data of a BS digital broadcast. With the conventional technology, a program table of a ground wave broadcast and a program table of a BS digital broadcast cannot be displayed on the same screen of a monitor at the same time. Thus, even if there is a difference in display configuration between pieces of genre information in these two communication methods, an undesirable state is not generated specially.
In accordance with the present invention, however, all the embodiments, including not only the fourth embodiment but also the other embodiments, are characterized in that they have a configuration in which a program table of a ground wave broadcast and/or a web program table and a program table of a BS digital broadcast can be displayed on the same screen of a monitor at the same time. Thus, making the genre display of a BS digital broadcast and the genre display of a ground wave broadcast and/or a web genre display uniform provides convenience to the user. In addition, even for a case in which a program table of a ground wave broadcast and a program table of a BS digital broadcast cannot be displayed on the same screen of a monitor at the same time, as is the case with the conventional technology, making the genre display of a BS digital broadcast and the genre display of a ground wave broadcast and/or a web genre display uniform provides convenience to the user as well. The fourth embodiment implements a configuration making the genre display of a BS digital broadcast and the genre display of a ground wave broadcast and/or a web genre display uniform.
The following description explains operations carried out to execute a program-display control method provided by the fourth embodiment. The genre-uniformity processor 13 reads out genre information in program-table data of a ground wave broadcast and/or genre information in web program-table data from the second program-table data memory 7, and collates the genre information read out from the second program-table data memory 7 with genre information stored in the first program-table data memory 3 as genre information in program-table data of a BS digital broadcast. That is to say, genres a of Gemstar EPG of a ground wave broadcast are collated with genres conforming to ARIB regulations of the BS digital broadcast as shown in
For example, in an operation to read out genre information in program-table data of a ground wave broadcast and/or genre information in web program-table data from the second program-table data memory 7, the genre information is found to be typical information indicating a data format of ‘a ground wave movie’. In this case, this genre information is changed to information indicating a data format of ‘a movie’ of a BS digital broadcast and stored back in the second program-table data memory 7. As a result, genre-information display data, which is created by the program-table creation unit 8 and then output to the display means, and display data of genre information in a BS digital broadcast are made uniform, and uniform genres are displayed on the screen of the monitor.
As described above, in accordance with the fourth embodiment, the program-display control apparatus is provided with the first program-table data memory 3 (the first storage means) for storing data of a program table for a BS digital broadcast and the second program-table data memory 7 (the second storage means) for storing data of a program table for a ground wave broadcast and/or web program-table data. The genre-uniformity processor 13 changes the display configuration of program-table data stored in the first program-table data memory 3 as data of a program table for a BS digital broadcast or the display configuration of program-table data stored in the second program-table data memory 7 as data of a program table for a ground wave broadcast and/or the web program-table data in such a way that the program tables can be displayed on the same screen at the same time. Thus, for example, the user can make video-recording reservations for a plurality of programs of the ground wave broadcast and the BS digital broadcast, which are received in the same week, at one time without switching the screen from the ground wave broadcast to the BS digital broadcast or vice versa. That is to say, the fourth embodiment exhibits an effect that uniform genres of programs are displayed in a state which can be recognized by the user with ease.
In addition, the same genre of a program included in the BS digital broadcast and a program included in the ground wave broadcast and/or a web program may be displayed in different genre display configurations in some cases. In accordance with the fourth embodiment, however, the genre display configurations of the same genre are made uniform. Thus, the fourth embodiment exhibits an effect that the genre of each program can be displayed in a uniform configuration that can be recognized by the user with ease without the need to be aware of whether the broadcast is a BS digital broadcast or a ground wave broadcast.
Next, a fifth embodiment of the present invention is explained by referring to
The following description explains operations carried out to execute a program-display control method provided by the fifth embodiment.
In addition, the enlargement stage S can be displayed on a portion of the screen as an icon or characters typically representing a number. In the case of icons, both the present enlargement stage S and a maximum enlargement stage Smax are typically visually displayed. Alternatively, the present enlargement stage S and a maximum enlargement stage Smax can be visually displayed on the time frame (i) being enlarged.
If the determination result obtained at step S42 indicates that the time frame (i) has already been enlarged, on the other hand, the flow of the control goes on to step S46 at which the present enlargement stage S is read out from the time-frame enlargement stage register 15. Then, at the next step S47, the present enlargement stage S is compared with the maximum enlargement stage Smax. If the present enlargement stage S is not equal to the maximum enlargement stage Smax, the flow of the control goes on to step S48 at which the present enlargement stage S is incremented by 1. Then, at the next step S44, the display area of the time frame (i) is changed on the basis of the enlargement stage S. Thus, the display area of the time frame (i) is changed to an area corresponding to an enlargement stage which is one level higher than the present enlargement stage S. Subsequently, at the next step S45, the value of the changed enlargement stage S is sent to and stored in the first program-table data memory 3 or the second program-table data memory 7 to be used as the data of the area after the enlargement.
On the other hand, if the determination result obtained at step S47 indicates that the present enlargement stage S is equal to the maximum enlargement stage Smax, since the present enlargement stage S has reached a maximum value, the flow of the control goes to step S49 at which a message indicating that the display area cannot be enlarged anymore is sent to the first program-table data memory 3 or the second program-table data memory 7 to be used as the data of the area after the enlargement.
If the determination result obtained at step S41 indicates that the command given by the user is not a command to enlarge the time frame (i), on the other hand, the flow of the control goes to step S50 to determine whether the command given by the user is a command to cancel the enlargement of the time frame (i) which has already been enlarged. If the command given by the user is a command to cancel the enlargement of the time frame (i), the flow of the control goes to step S51 at which the enlargement stage S is set at 1. Then, at the next step S44, the display area of the time frame (i) is changed on the basis of the enlargement stage S. Thus, the display area of the time frame (i) is changed to an area corresponding to an enlargement stage of 1 which is the default state of no enlargement. Subsequently, at the next step S45, the data of the display area represented by the present enlargement stage S is sent to and stored in the first program-table data memory 3 or the second program-table data memory 7 to be used as the data of the area after the enlargement. In this case, the present enlargement stage S is the enlargement stage of 1.
Next, typical enlarged displays are explained.
If a command to enlarge the time frame (i) is received in the state shown in
In addition, if program-display concealment marks MK1 and MK2, each occupying 0.5 lines, are included in a time frame (i) to conceal information on programs B and D, as shown in
As described above, in accordance with the fifth embodiment, if a command to enlarge any program in a program table being displayed is received, the display area of the program is enlarged. Thus, the embodiment exhibits an effect that, if the user wants to view more detailed information on any dummy program whose describing characters are not shown due to a displayed program-display concealment mark, the user can reveal the information on the desired program with ease by issuing a command to enlarge the program. When the display area of a program is enlarged, not only can the number of displayed characters describing the information be increased by keeping the size of the characters unchanged, but the size of the characters can also be increased as well by keeping the number of characters unchanged.
Next, a sixth embodiment of the present invention is explained by referring to
The following description explains operations carried out to execute a program-display control method provided by the sixth embodiment.
If the determination result obtained at step S63 indicates that the present enlargement stage S is not equal to the maximum enlargement stage Smax, on the other hand, the flow of the control goes on to step S64 at which the area enlargement display processor 16 increments the value of the enlargement stage S. Then, at the next step S65, the area enlargement display processor 16 calls a subroutine for computing the size of the enlarged display area. Details of this subroutine are shown in
Then, at the next step S67, an icon flag is added to the program table. This icon flag is added at a location inside the program table if necessary, as shown in
Then, at the next step S68, the area enlargement display processor 16 sends the value of the enlarged stage S to the first program-table data memory 3 or the second program-table data memory 7, and the program-table creation unit 8 replaces the area before the enlargement with the area after the enlargement. As a result, the area on the screen is actually enlarged.
Next, the subroutine called at step S65 of the flowchart shown in
The flowchart of
Then, at the next step S652, the area enlargement display processor 16 recognizes a portion pointed to by a cursor, which is operated by the user, as a portion to be enlarged. The state in which the portion is pointed to by the cursor is shown in
Then, at the next step S654, a computation for enlarging the portion to be enlarged is carried out. In this computation, the enlargement is computed with drawing elements each used as a unit of an area to be enlarged. Let symbol t1 denote the number of elements arranged in the time-frame direction in a pre-enlargement program pointed to by the cursor, symbol t2 denote the number of elements arranged in the time-frame direction in a post-enlargement program pointed to by the cursor, symbol n1 denote the number of elements arranged in the channel direction in a pre-enlargement program pointed to by the cursor and symbol n2 denote the number of elements arranged in the channel direction in a post-enlargement program pointed to by the cursor.
The values of t2 and n2 after the enlargement of the area of the program and the dilation ratio are expressed by the following equations:
t2=t1×T1/T2
n2=n1×N1/N2
Dilation ratio of screen area=n2/n1×t2/t1 (as shown in
Subsequently, at the next step S655, an effective area for showing characters is found. Relations expressed by the above equations are shown in
Number of elements arranged in the time direction:
t2−(U2+D2)
Number of elements arranged in the channel direction:
n2−(R2+L2)
In the above expressions, symbol U2 denotes the difference between the upper portion of the entire screen area and the upper portion of the program area prior to the enlargement, symbol D2 denotes the difference between the lower portion of the entire screen area and the lower portion of the program area prior to the enlargement, symbol R2 denotes the difference between the right portion of the entire screen area and the right portion of the program area prior to the enlargement, whereas symbol L2 denotes the difference between the left portion of the entire screen area and the left portion of the program area prior to the enlargement.
Then, the flow of the subroutine goes on to step S656 to find the number of characters that can be displayed in the effective display area computed as described above. Let symbol h2 denote the height of a character in the enlarged area and symbol w2 denote the width of the character. In this case, the number of rows arranged in the time direction and the number of columns arranged in the channel direction are found in accordance with the following equations:
Number of rows arranged in the time direction:
(t2−(U2+D2))/h2
Number of columns arranged in the channel direction:
(n2−(R2+L2))/w2
In the above equations, a fraction on the right side of a decimal point is discarded. If the size of each character is assumed to be the same as that prior to the enlargement of the screen, an increase in information amount can be found in accordance with the following equation:
{(n2−(R2+L2)/w2)/(n1−(R1+L1)/w1)}×{(t2−(U2+D2)/h2)/(t1−(U1+D1)/h2)}
The above equation is shown in
By using the increased information computed in this way as a base, the program area is enlarged as shown in
By referring to the diagram shown in
The following description explains the subroutine called at step S66 of the flowchart shown in
Assume, for example, that a program table is enlarged from a size corresponding to an enlargement stage of 1 to a size corresponding to an enlargement stage of 2. In this case, the subroutine enlarges the program table from the size corresponding to the enlargement stage of 1 to the size corresponding to the enlargement stage of 2 not directly, but by dividing the state between the enlargement stage of 1 and the enlargement stage of 2 into several enlargement sub-stages as shown in
The flowchart shown in
X1=a
X2=t2−(a+t1)
X3=n2−(b+n1)
X4=b
Where
n1=n2×(N2/N1)
t1=t2×(T2/T1)
It is to be noted that, in order to enlarge the post-enlargement area (t2, n2) to the full screen, t2 is set at t and n2 is set at n.
Next, displays of animations are explained. A transition from the pre-enlargement area (t1, n1) to the post-enlargement area (t2, n2) is divided into k stages and displayed as animations. In this case, the differences X1, X2, X3 and X4 are each divided by k and, by changing j from 1 to k, each animation area can be computed. This processing is carried out at steps S665 to S668. To be more specific, at step S665, j is set at an initial value of 1. Then, at the next step S666, the area of an animation at the first stage is computed. Subsequently, at the next step S667, j is incremented by 1. Then, at the next step S668, j is compared with k to determine whether the processing has been completed. If j is smaller than k, the flow of the subroutine goes back to step S666 to compute the next animation area. This is because all of the animation areas have not been found. If all of the animation areas have been found, on the other hand, the execution of the subroutine is ended. By carrying out the computation described above, animation areas 1 to 3 shown in
As the execution of the subroutine is completed, the flow of the processing represented by the flowchart shown in
A typical animation enlargement process actually carried out at step S68 is explained by referring to
In addition, an icon is displayed at a specified position as shown in
The embodiments described above are no more than preferred implementations for explaining the present invention. That is to say, the present invention is not limited to the embodiments described above, and the embodiments can thus be modified in a variety of ways within a range of essentials of the present invention.
For example, the embodiments described above may implement the program-display control apparatus provided by the present invention as not only a television receiver, but also obviously as a system including an information-processing apparatus. An example of the information-processing apparatus is a personal computer or a portable information terminal for receiving typical program-table data of a BS digital broadcast and program-table data of a ground wave broadcast and/or web program-table data, and for displaying the received program-table data on a monitor. If a personal computer or a portable information terminal is used as the program-display control apparatus as described above, the user can enter a command by utilizing a pointing device, such as a mouse or a writing pen, instead of using the remote controller of the television receiver.
As described above, the present invention exhibits an effect that program-table data of a BS digital broadcast and program-table data of a ground wave broadcast and/or web program-table data are received and their display configurations are changed to a display configuration that allows the user to recognize their program tables with ease.
In addition, even in the case of a displayed program table including a dummy program represented by a program-display concealment mark for concealing characters describing information on the program, the present invention exhibits an effect that, by giving an enlargement command, the user can recognize the information on a desired program with ease.
On the top of that, by carrying out processing to display animations as an implementation of an enlargement process, the screen enlargement progress with the lapse of time can be confirmed visually.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2002-148650 | May 2002 | JP | national |
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/JP03/06404 | 5/22/2003 | WO | 00 | 11/23/2004 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO03/101094 | 12/4/2003 | WO | A |
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