JP2002199299A - Digital broadcast receiver and its control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a digital broadcast receiver and its control method that can indicate operation effective keys on a current display menu for a user so as to improve the convenience of handling by the user. SOLUTION: The digital broadcast receiver that can transmit information to a data broadcast provider by operating a specific key of a remote controller 19 with respect to a menu displayed on a monitor on the basis of a received data broadcast program, detects operation effective keys with respect to the menu displayed on the basis of the received data broadcast program and displays an image representing the detected keys onto a monitor or a liquid crystal display section 19a of the remote controller 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital broadcast receiving apparatus for receiving, for example, digital television broadcasts using satellites and a control method therefor.

[0002]

2. Description of the Related Art As is well known, digital television broadcasting has recently been started, and a wide variety of information is acquired by data broadcasting as well as video and audio viewing by a corresponding digital broadcast receiving device. It has become possible.

[0003] In this data broadcasting, information can be transmitted from a user to an information providing side. The information transmission from the user to the information providing side, generally, the information providing side provides the user with a plurality of options on the screen, the user operates a predetermined key installed on the remote controller of the digital broadcast receiving device, It is realized by a method of selecting one of the options.

[0004] By the way, with respect to an arbitrary screen displayed during reception of a data broadcast that prompts the user to select, which key operation of the remote controller is valid and which key operation is invalid are determined by the data. Depends on broadcast content. In many cases, information indicating which key is valid on the current display screen is not included in the content.

[0005] For this reason, in the conventional digital broadcast receiving apparatus, it is difficult to know which key should be operated while a screen for prompting the user's selection is displayed, and an undesired option is selected due to an erroneous operation. For example, there is a problem that handling becomes inconvenient for the user.

A known technique relating to a technique for a user to select a desired option from a plurality of options provided by a broadcasting station is disclosed in, for example, JP-A-9-37181. However, this is related to an electronic program guide for a user to quickly select a desired program from among many broadcast programs, and solving the above-mentioned conventional problems in data broadcasting is described as follows. No description is given.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is possible to instruct a user on a key which is effective on a current display screen to make the handling convenient for the user. It is an object of the present invention to provide a very good digital broadcast receiving apparatus and a control method thereof.

[0008]

A digital broadcast receiving apparatus according to the present invention operates a specific key on a screen displayed on the basis of a received data broadcast.
It is intended for those capable of transmitting information with the provider of data broadcasting. Then, an instruction means for instructing an effective key on a screen displayed based on the received data broadcast is provided.

Further, according to the control method of the digital broadcast receiving apparatus according to the present invention, a specific key is operated on a screen displayed based on the received data broadcast,
The present invention is directed to a method for controlling a digital broadcast receiving apparatus so that information can be transmitted with a data broadcast provider.
Then, an instruction step is provided for instructing a key on which an operation is effective on a screen displayed based on the received data broadcast.

[0010] According to the configuration and method as described above, a key for which an operation is valid is instructed on a screen displayed based on a received data broadcast.
It is possible to easily recognize which key should be operated on the current display screen, eliminate erroneous operations, and make handling easier for the user.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a digital television broadcast receiver described in this embodiment. That is, in this digital television broadcast receiver, a program is selected by supplying an RF (Radio Frequency) signal generated from the received digital television broadcast wave to the tuner unit 11.

The RF signal output from the tuner 11 is transmitted to the RF demodulator 12 and the TS (Transport Stre
am) is supplied to the decoder 13 respectively. this house,
The RF demodulation unit 12 performs a demodulation process on an AV (Audio Video) component related to an image or a sound in the input RF signal, and outputs the AV signal to the image synthesis unit 15 via the AV decoder 14.

The TS decoder 13 performs a decoding process on a data component related to data broadcasting in the input RF signal, and outputs the data component to a data broadcasting processing unit 16. The data broadcast processing unit 16 analyzes the content of the data obtained from the TS decoder 13 and performs OSD (On Screen).
Display) creating unit 17 creates image data for on-screen display, and outputs it to image synthesizing unit 15.

The image synthesizing section 15 synthesizes the image data decoded by the AV decoder 14 and the image data created by the OSD creating section 17, and sends the synthesized data to a monitor (not shown). By outputting and displaying on the screen, the television broadcast program and the data broadcast content are multiplexed and displayed on the same screen.

Here, the data broadcast processing section 16 outputs the data broadcast content analyzed there to an effective key detection section 18. The valid key detection unit 18 is a unit that, based on the input data broadcast content, displays the currently displayed data broadcast among various keys installed on a remote controller 19 that provides operation information to the digital television broadcast receiver. The key for which the operation is valid is determined on the screen.

Then, the valid key detecting section 18 compares the discrimination result with the OSD creating section 17 and the external device control section 20.
And output respectively. Then, the OSD creating unit 17
Creates image data for instructing a key whose operation is valid on the currently displayed data broadcast screen based on the valid key determination result obtained from the valid key detection unit 18 and performs image synthesis. Output to the unit 15.

As a result, the above-described monitor device includes A
A television broadcast program based on the output data of the V-decoder 14, an image showing a plurality of options created based on the content of the data broadcast, and an image indicating a key of the remote controller 19 whose operation is valid on this image. Are multiplexed on the same screen.

The external device control unit 20 transmits the valid key determination result obtained from the valid key detection unit 18 to the remote controller 19 using wireless communication such as Bluetooth. Therefore, the remote controller 1
9 displays on the liquid crystal display unit 19a an image for instructing a key whose operation is valid on the data broadcast screen currently displayed on the monitor device.

Here, on the screen of the data broadcast currently displayed on the monitor device, whether or not to display an image for instructing an effective key on the liquid crystal display portion 19a of the monitor device or the remote controller 19 is determined. Can be selected by the user. This selection is performed by the user operating a predetermined key of the remote controller 19.

That is, the user operates a key provided on the remote controller 19 to select whether or not to display an image indicating a key whose operation is valid. Then, the operation information is transmitted to the valid key presentation determination unit 21.
To determine whether the display of the valid key is required or not.

When it is determined that the display of the valid key is requested, the valid key presentation determining unit 21
Controls the OSD creation unit 17 to create image data indicating a valid key, and displays an image indicating the valid key to the external device control unit 20 on the liquid crystal display unit 19a of the remote controller 19. Control to make it.

If it is determined that the display of the valid key is not requested, the valid key presentation determining unit 21
Controls the OSD creation unit 17 not to create image data indicating an effective key, and displays an image indicating an effective key to the external device control unit 20 on the liquid crystal display unit 19a of the remote controller 19. Control not to let it.

FIG. 2 is a flow chart summarizing the operation of the characteristic portion of the digital television broadcast receiver described above. That is, when started (step S11), in step S12, the TS decoder 13
By performing the decoding process on the data component of the data broadcast, the data of the data broadcast is created as shown in step S13.

Next, in step S14, the data broadcast processing unit 16 analyzes the data content after the decoding process, and based on the analyzed content, in step S15, the valid key detection unit 18 determines whether the valid key of the operation is valid. Is detected. Thereafter, in step S16, when the valid key presentation determination unit 21 determines that the instruction of the valid key is requested, the process proceeds to step S17.
Then, a display indicating an effective key is displayed on the monitor device or the liquid crystal display unit 19a of the remote controller 19, and
The process is ended (step S18).

According to the above-described embodiment, of the various keys installed on the remote controller 19, a key whose operation is valid on the currently displayed data broadcast screen is detected, and the detection result is monitored. Since the display is performed on the device or the liquid crystal display unit 19a of the remote controller 19, the user can easily recognize which key should be operated on the current display screen, and there is no erroneous operation. Handling can be made convenient.

As means for detecting a key whose operation is valid, for example, in the case of BML data broadcasting in BS digital broadcasting, a method of determining the type of a remote controller key specified in the used-key-list characteristic Alternatively, a method of determining by recognizing information such as an onfocus attribute of each element may be considered.

As a method of presenting an effective key to a user, a GUI (Graphic Graphic) displayed on a television screen is used.
There are a method of coloring the characters of the user interface) or the color of the remote controller diagram, a method of reading out the name of the remote controller key, and a method of illuminating the key of the remote controller.

Further, the external device control unit 20 transmits the valid key discrimination result obtained from the valid key detection unit 18 to a portable terminal such as a portable telephone (not shown) using wireless communication such as Bluetooth, for example. An effective key may be displayed on the display unit of the portable terminal.

It should be noted that the present invention is not limited to the above-described embodiment, and can be variously modified and implemented without departing from the scope of the invention.

[0030]

As described in detail above, according to the present invention,
It is possible to provide an extremely good digital broadcast receiving apparatus capable of instructing a user to operate effective keys on a current display screen and making the handling convenient for the user, and a control method thereof.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a digital broadcast receiving apparatus and a control method according to an embodiment of the present invention;

FIG. 2 is a flowchart shown to explain an operation of a characteristic portion in the embodiment.

[Explanation of symbols]

 11: Tuner section, 12: RF demodulation section, 13: TS decoder, 14: AV decoder, 15: Image synthesis section, 16: Data broadcast processing section, 17: OSD creation section, 18: Effective key detection section, 19: Remote Controller 20: External device control unit 21: Valid key presentation determination unit

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Claims (8)

[Claims] 1. A digital broadcast receiving apparatus capable of performing information transmission with a data broadcast providing side by operating a specific key on a screen displayed based on a received data broadcast. A digital broadcast receiving apparatus, comprising: an instruction unit for instructing a key for which an operation is effective on a screen displayed based on the data broadcast. 2. The detecting means for detecting a key whose operation is valid based on the content of the received data broadcast, and generating and displaying an image indicating the key detected by the detecting means. The digital broadcast receiving device according to claim 1, further comprising a display unit. 3. The instructing means includes: detecting means for detecting a key whose operation is valid based on the received content of the data broadcast; and information for instructing the key detected by the detecting means to a remote controller by wireless. 2. The digital broadcast receiving apparatus according to claim 1, further comprising: a display unit for transmitting and displaying on the remote controller. 4. The detecting means for detecting a key whose operation is valid based on the content of the received data broadcast, and information for instructing the key detected by the detecting means is wirelessly transmitted to the portable terminal. 2. A display means for transmitting and displaying the information on the portable terminal.
The digital broadcast receiving device according to the above. 5. A digital broadcast receiving apparatus is controlled to operate a specific key on a screen displayed based on a received data broadcast so that information can be transmitted to and from the data broadcast providing side. A digital broadcast receiving apparatus, comprising: an instruction step of instructing an operation-effective key on a screen displayed based on the received data broadcast. How to control the device. 6. The instructing step includes a detecting step of detecting a key whose operation is valid based on the received content of the data broadcast, and generating and displaying an image indicating the key detected in the detecting step. 6. The control method for a digital broadcast receiving device according to claim 5, further comprising a display step. 7. The instructing step includes a detecting step of detecting a key whose operation is valid based on the received data broadcast content, and wirelessly transmitting information indicating the key detected in the detecting step to a remote controller. 6. A control method for a digital broadcast receiving apparatus according to claim 5, further comprising a display step of transmitting and displaying on said remote controller. 8. The instructing step includes a detecting step of detecting a key whose operation is valid based on the received data broadcast content, and information indicating the key detected in the detecting step is transmitted to the portable terminal by wireless. 6. A display step of transmitting and displaying on the portable terminal.
The control method of the digital broadcast receiving apparatus according to the above.