Patent Application
20090217190
This application is based upon and claims priority from Japanese Patent Application No. 2007-039738, filed on Feb. 20, 2007, the entire contents of which are incorporated herein by reference.
1. Field of the Invention
The present invention relates to a data broadcast receiving apparatus, a method of receiving data broadcast, and a computer readable medium storing a data broadcast receiving program.
2. Description of the Related Art
In Japan, the ISDB-T (Integrated Service Digital Broadcasting-Terrestrial) is adopted as a standard of terrestrial digital broadcast. In the terrestrial digital broadcast under the ISDB-T, a broadcast frame includes twelve segments necessary to present normal display and one additional segment. Normally, images broadcast or data broadcast using the one segment is called one-segment broadcast.
The one-segment broadcast provides data broadcast such as video broadcast suitable for cellular phones and/or image broadcast or data broadcast complied with a predetermined standard such as a BML (Broadcast Markup Language) standard. Digital contents contained in a data file complied with the BML standard can be interactively enjoyed by using a BML browser.
On the other hand, although the one-segment broadcast is delivered in the assumption that the broadcast is viewed on cellular phones with an easy user operation, the one-segment broadcast may also be displayed on a personal computer. On the personal computer, various operation buttons corresponding to the operation buttons provided in the cellular phone as hardware are displayed on a screen and the various operation buttons are operated using a keyboard or a mouse.
In a personal computer which exhibits interactive display, the user can input operations by (1) clicking a numeral display area of a menu by use of a mouse and (2) clicking an up and down cursor display area by use of the mouse.
However, these operations may have the following problems.
In the operation (1), an operation of presenting the next screen cannot be made. In the operation (2), the clicking of the numeral display area of the menu cannot be intuitively made on the personal computer. Moreover, a user is rather obliged to click the up and down cursor display area presented below the numeral display area. In addition, these operations are troublesome and are not intuitive.
One aspect of the invention is conceived in consideration of the above-described situations has an object to provide a data broadcast receiving apparatus, a data broadcast receiving method, and a computer readable medium storing a data broadcast receiving program, which enable an intuitive operation and solve the troublesomeness.
According to a first aspect of the invention, there is provided a data broadcast receiving apparatus configured to receive data broadcast and provide interactive display in response to an input operation on a personal computer, the personal computer connectable to a mouse and a display device having a display screen, the mouse configured to obtain the input operation and including a mouse button and a wheel that is operable to input scroll operation, said digital data receiving apparatus comprising: a display processing unit configured to provide a display area and an operation area defined on the display screen, the display area reserved for a display of the data broadcast and the operation area reserved for a display of operation buttons; and an input operation detecting unit configured to detect the input operation from the mouse to perform an interactive display based on a description of data contained in the data broadcast in response to the input operation of the mouse, wherein the scroll operation of the wheel of the mouse is assigned to operations on at least one of the operation buttons.
According to a second aspect of the invention, there is provided a data broadcast receiving method capable of receiving data broadcast and providing interactive display in response to an input operation on a personal computer, the personal computer connectable to a mouse and a display device having a display screen, the mouse configured to obtain the input operation and including a mouse button and a wheel that is operable to input scroll operation, said digital data receiving method comprising: providing a display area and an operation area defined on the display screen, the display area reserved for a display of the data broadcast and the operation area reserved for a display of operation buttons; and performing an interactive display based on a description of data contained in the data broadcast in response to the input operation of the mouse, wherein, when the scroll operation of the wheel is detected, the scroll operation of the wheel of the mouse is processed as operations on at least one of the operation buttons.
According to a third aspect of the invention, there is provided a computer readable medium storing a data broadcast receiving program for receiving data broadcast and providing interactive display in response to an input operation on a personal computer, the personal computer connectable to a mouse and a display device having a display screen, the mouse configured to obtain the input operation and including a mouse button and a wheel that is operable to input scroll operation, said data broadcast receiving program enabling the personal computer to execute: providing a display area and an operation area defined on the display screen, the display area reserved for a display of the data broadcast and the operation area reserved for a display of operation buttons; and performing an interactive display based on a description of data contained in the data broadcast in response to the input operation of the mouse, wherein, when the scroll operation of the wheel is detected, the scroll operation of the wheel of the mouse is processed as operations on at least one of the operation buttons.
One aspect of the invention provides a data broadcast receiving apparatus capable of exhibiting interactive display in a more intuitive manner by allowing an input operation to a menu display such that displayed up and down cursor buttons can be operated based on a wheel operation of a mouse wheel in addition to a click operation of the mouse for the displayed up and down cursor buttons.
Hereinafter, an embodiment of the invention will be described with reference to the drawings.
In the embodiment, a one-segment data receiving apparatus used in the system complied with the ISDB-T is explained as an example of a data broadcast receiving apparatus. However, the data broadcast receiving apparatus is not limited to the one-segment data receiving apparatus and may be applicable to other data communication systems using digital data complied with predetermined standards such as MPEG-4, or any other data broadcast system complied with predetermined standards, such as ATSC (Advanced Television Standard Committee) Standards generally adopted in North America, DVB (Digital Video Broadcasting) generally adopted in Europe, and DTMB (Digital Terrestrial Multimedia Broadcast) generally adopted in China.
As shown in
At this time, based on the positional information, the personal computer determines whether the button display G, H, or J of the operation area F is operated in response to the click operation of the mouse D. Then, the personal computer notifies the analysis engine K of the click operation as the button operation. Moreover, in response to a wheel operation, the personal computer notifies the analysis engine K of the wheel operation of the mouse D as up and down cursor operations similar to the click operation for the up and down cursor button display G, irrespective of the positional information.
A method performed in this configuration corresponds to a method of receiving one-segment data broadcast. In addition, a program for executing such a method corresponds to a program for receiving one-segment data broadcast.
A distal data receiving circuit 10 receives a TS stream constituted by TS packets and extracts the TS packets. The digital data receiving circuit 10 corresponds to the digital broadcast tuner, particularly, a receiving circuit of the one-segment broadcast. In the one-segment broadcast, digital contents such as a video, audio, or a still image are transmitted as the TS stream, and a stream of the data broadcast is extracted from the TS stream. A driver called the DSM-CC interface extracts the data broadcast from the TS stream. In terms of the overall apparatus, the personal computer executes the extraction.
The received TS packet is output to a DEMUX (DeMultiplex) circuit 20. As shown in
As simply shown in
Normally, video digital contents complied with a MPEG standard include the image PES and the audio PES. In addition, in the data broadcast, the PES or the PSI of data is also included. This embodiment particularly relates to the data broadcast. BML data complied with a BML standard is extracted through the DSM-CC interface and output through a data stream processing unit 31. Moreover, when the image and audio of a video is reproduced, the image PES is input to an image decoder 32 to be converted into image signals and the audio PES is input to an audio decoder 33, and then the image decoder 32 and the audio decoder 33 are synchronized on the basis of synchronization information to reproduce the image and audio.
A control circuit 40 is configured to perform various types of control is connected to the data stream processing unit 31. The control circuit 40 includes a CPU, a RAM, and a ROM and is executed by hardware and software. The control circuit 40 operates a BML browser executed by the software, analyzes BML data that is obtained and output to the data steam processing unit 31, and exhibits a predetermined display on a display area 50. The CPU, the RAM, and the ROM for operating the BML browser all constitute an analysis engine. The BML data is obtained based on the description for presenting interactive display. The control circuit 40 obtains input operations through a keyboard 60 and a mouse 70.
The display area E and the operation area F shown in
The control circuit 40 can detect coordinate information (which is the same as movement information on two-dimensional coordinate) on two-dimensional coordinates of the mouse 70 through an interface of hardware.
In Step S110, the CPU determines whether the click operation is performed. The CPU is notified of the click operation through an interrupt process when the left button 72 or the right button 73 of the mouse 70 is clicked. The CPU determines whether the click operation is performed, on the basis of the notification of the click operation.
In response to the click operation, the CPU detects the position of the mouse 70. When the mouse 70 is moved on a plane surface, the mouse 70 outputs a movement distance of an X or Y direction as a signal, and the CPU is notified of the signal to the CPU by the interrupt process. The CPU separately performs a display control of the cursor interlocked with the mouse. In Step S112, the CPU determines whether a cursor display position is identical with one of the positions on the up, down, right, and left cursor button display G shown in
When the click operation is performed on the position of the up and down cursor button display G, it is considered that a user operates the up and down cursor button in Step S116. The BML browser corresponding to the analysis engine is notified of the cursor operation. This operation is the cursor operation, but is not the click operation of designating the coordinates.
On the other hand, the click operation may be also performed on other than the up, down, right, left cursor button display. Accordingly, in Step S118, it is determined whether the cursor display position is identical with the position of the selection button display J shown in
In Step S122, it is determined whether the cursor display position is the position of the return button display H shown in
The BML data of the data broadcast is made in the assumption that the cursor button operation, the return button operation, or the selection button operation is received but is not made in the assumption that a click operation of clicking the display area is received. However, if a user is accustomed to use a personal computer, such an operation to click the display area is intuitively made and it may take time for a user to understand that the operation is not a right operation. Accordingly, assuming that this operation of the user is made, it is determined whether the display area of the cursor is within the display area E in response to the click operation in Step S126. If the display area of the cursor at the time of the click operation is within the display area E, a warning is indicated on the display area 50 in order to give convenience to the user in Step S130. As an example of the warning, “A mouse operation within a display area is invalid in a one-segment data broadcast.” can be exemplified.
In the Steps S116, 120, 124, 128, the personal computer delivers the coordinate information and the click operation of the clicked area in response to the click operation of the mouse. However, in the Step 130, i.e., if the determination in Step S126 indicates “No,” the personal computer does not deliver the click operation to the analysis engine when detecting the click operation of the mouse button on the display area.
A user may click the display area in response to the interactive display, but such a click operation is not assumed in the one-segment data broadcast and is worthless. Therefore, according to the Step S130, the personal computer does not deliver the worthless operation and ignores the operation.
Basically, the one-segment data broadcast can be sufficiently browsed using the BML browser by the above-described operations. However, the user of the personal computer may feel like troublesome when the user moves a mouse cursor on the cursor display position to click the mouse button. Therefore, in this embodiment, after the determination that there is no click operation in Step S110, it is determined whether the wheel operation is performed in Step S114.
When the user operates the wheel 74 of the mouse 70, the CPU is notified of the wheel operation (a stroll direction and an amount of stroll) by the interrupt process, similar to the click operation. Subsequently, based on whether the notification is made, it is determined whether the wheel operation is performed in Step S114. If it is determined that the wheel operation is made, it is considered that the cursor operation in Step S116 is made. Then, the analysis engine is notified of the cursor operation. In addition, it is determined whether an operation of the up cursor button display is made or an operation of the down cursor button display is made according to the scroll direction of the wheel. It is determined how many times the cursor button is pressed according to the amount of scroll. Then, the analysis engine is notified of this operation.
It is intuitive that downward scrolling of the wheel 74 is processed as pressing the down cursor button, and upward scrolling of the wheel 74 is processed as pressing the up cursor button. The wheel 74 is designed to make a sound whenever the wheel 74 is scrolled at a predetermined angle. Accordingly, if one sound is processed as the pressing of the cursor button once to notify the analysis engine of the press operation, the user can intuitively feel press operation.
When the BML data is received and displayed by the BML browser in the data broadcast, menu display shown in
The control circuit 40 performs the mouse interface process and the BML browser in parallel. In addition, the control circuit 40 determines that the cursor is presented on the menu 1 at the time of performing the BML browser and performs a process of the menu 1 described in the BML data.
When the user moves the mouse 70 to exhibit the cursor display position on the down cursor button display G and presses the left button 72, it is determined that the click operation is made in Step S110 and it is determined that the cursor display position is presented on the up, down, right, left cursor button display G in Step S112. Then, the BML browser as the analysis engine is notified of the click operation as the cursor operation in Step S116. Specifically, the cursor display position is presented on the down cursor button display area in Step S112 and the BML browser is notified of the cursor operation as a down cursor press operation. As a result, the highlight of the menu 1 disappears and the menu 2 is highlighted so as to be selected.
Next, when the user downwardly scrolls the wheel 74 of the mouse 70, it is determined that the click operation is not present in Step S110 and it is determined that the wheel operation is made in Step S114. In addition, the pressing of the down cursor in Step S114 is determined as the press operation once according to the scroll direction and the amount of the scroll. The BML browser as the analysis engine is notified of the downward scrolling as the cursor operation in Step S116. In this way, the BML browser is notified of the downward scrolling as the press operation of the down cursor. Then, the highlight of the menu 2 disappears and the menu 3 is highlighted so as to be selected.
When the user downwardly scrolls the wheel 74 of the mouse 70, the BML browser is notified of the downward scrolling as the press operation of the down cursor. Accordingly, even though not shown in
On the other hand, when the user upwardly scrolls the wheel 74 of the mouse 70, the BML browser is notified of the upward scrolling as the press operation of the up cursor. Accordingly, the previous screen for providing the menus 1 to 3 shown in
Such a display area of the BML browser is just an example and may be changed depending on description of the BML data. However, since the user can scroll the wheel 74 instead of moving the cursor upwardly or downwardly, the user can intuitively feel and easily use the display area.
The scrolling of the wheel 74 of the normal mouse 70 has been described, but an operation of tilting the wheel 74 in a right or left direction may be made. The scroll operations of the wheel 74 are assigned to the up and down cursor operations. Moreover, the tilting operation of the wheel 74 in the right and left directions may be used instead of the right and left cursor operations. That is, the tilting operation of the wheel 74 of the mouse 70 in the right and left directions may be assigned to the click operations presented in the right and left cursor display area.
In this way, the personal computer serves as receiving the one-segment data broadcast using the terrestrial digital broadcast tuner B provided therein or attached to the outside thereof. Moreover, the personal computer extracts the BML data C of the transport stream through the DSM-CC interface so as to perform browsing. The personal computer exhibits a predetermined display area including the display area E and the operation area F. Moreover, interactive display is presented on the operation area F which includes the cursor button display G corresponding to the up, down, right, and left cursor button, the return button display H, and the selection button display J by the software analysis engine K. Moreover, the personal computer considers the wheel operation of the mouse D as the click operation for the up and down cursor display G, irrespective of the positional information. In addition, the personal computer notifies the analysis engine K of the wheel operation as the press operation of the cursor, and the analysis engine K exhibits the corresponding interactive display.
The data broadcast receiver 100 includes: an antenna 110 configured to receive a wireless signal of the data broadcast; and a connector 120 such as a USE (Universal Serial Bus) connector. The personal computer 200 includes an external port 210 such as a USB port and the keyboard 60 and is connectable to the mouse 70. The mouse 70 includes right and left buttons and a wheel as shown in
The data broadcast receiving system shown in
According to the embodiments of the invention, the up, down, right, and left cursor button display, the return button display, and the selection button display are normally displayed on the operation area. The click operation of the mouse button on each display area is acquired. The menu display corresponds to the click operation of the up, down, right, and left cursor button display. In this embodiment, since the click operation is assigned to the up and down cursor operation in response to the wheel operation of the mouse wheel, the operation of moving the cursor up and down on the menu display area can be made by the wheel operation. Accordingly, it is possible to present the interactive display in response to the intuitive operation.
Accordingly, according to the embodiments of the invention, in case where the mouse with the wheel is used as an input device for the data broadcast receiving apparatus, the function of the wheel can be effectively delivered.
Incidentally, the technique of corresponding the wheel operation of the mouse wheel to the up and down cursor display area by exhibiting the interactive display for the broadcast is not limited to a substantial apparatus, but may function as a method. Accordingly, there may be provided a method of receiving the data broadcast.
That is, the technique is not necessarily limited to the substantial apparatus, the method may be used.
However, such a data broadcast receiving apparatus may be solely used or may be mounted in an apparatus. The invention is not limited thereto, but may be modified in various forms. Accordingly, the data broadcast receiving apparatus may be embodied by hardware or software.
Specifically, when the data broadcast receiving apparatus is embodied by software, a computer readable medium storing the software can be used.
Accordingly, there may be provided a computer readable medium storing the data broadcast receiving program.
The computer readable medium may be any type of media such as a magnetic recording medium, a magnetooptical recording medium, or any recording medium to be developed in the future. In addition, the computer readable medium may be naturally a reproduction medium such as a primary reproduction medium or a secondary reproduction medium. The reproductions such as a first reproduction and a second reproduction are equivalent to each other without any doubt. Moreover, the invention may be embodied using communication lines as a supply method.
The invention is not departed from the spirit of the invention even in a case where a part of the invention is embodied by software and a part of the invention is embodied hardware. Moreover, the invention may be embodied in a case where a part of the program is stored in a computer readable medium to be used, if necessary.
In a case where the invention is embodied by software, it is possible to also use hardware or an operating system. In addition, the invention can be embodied separately from the hardware and the operating system. For example, various calculation processes can be performed by using a predetermined function of the operating system or by the hardware without using the function. In addition, even though the invention is embodied using the operating system, the invention can be embodied using only the program when the program recorded in a computer readable medium is distributed.
When the invention is embodied by software, the invention can be embodied by a computer readable medium for recording the program, and can be naturally embodied by the program as it is. Moreover, the program itself is included in the invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| P2007-039738 | Feb 2007 | JP | national |
