JP2000188698A - Remote controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote controller that can suitably select a program, even when a broadcast enterprise transmits the program through a channel number which differs according to the time zone. SOLUTION: This remote controller 112 has 1st selection buttons, B1, B2,..., B9 buttons for selecting a broadcast enterprise, in other words, to select any of a plurality of digital broadcast signals, 2nd selection buttons S1, S2, and S3 buttons for selecting any of three-channel SD(standard definition) broadcast signals broadcast by one broadcast enterprise, in other words, any of 3-channel SD broadcast signals which corresponds to one-channel HD(high definition) broadcast signal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a remote control device for a broadcast receiver for receiving digital broadcast.

[0002]

2. Description of the Related Art In recent years, digitalization of broadcasting has been progressing.
Broadcasting has been started in which digital signals compressed by a digital compression method such as on Picture Expert Group 2 are replaced. Of these, satellite digital broadcasting in Japan has approximately 24 Mbps (megabit /
Second) bandwidth. In the 24 Mbps band, HD (High Definition) for transmitting a high-definition image signal is used.
) SD (Standard Definition), which is equivalent to one channel of broadcasting and transmits an image signal of standard definition.
n) It is also possible to transmit three broadcast channels. Here, the HD broadcast is, for example, an interlaced broadcast having a frame number of 1920 × vertical 1080, a frame frequency of 29.97 Hz, and a field frequency of 59.94 Hz. The SD broadcast is, for example, 720 pixels × horizontal × 4 vertical pixels.
80 is an interlaced broadcast with a frame frequency of 29.97 Hz and a field frequency of 59.94 Hz. However, there are different standards for both SD and HD broadcasts.
In some cases, only two channels of SD broadcast are transmitted in the bps band.

In a broadcast capable of transmitting image signals having different degrees of definition as described above, a one-channel high-definition broadcast signal (hereinafter, referred to as an "HD broadcast signal") including a high-definition image signal depends on a time zone as follows. 3) and a program of a three-channel standard definition broadcast signal (hereinafter referred to as “SD broadcast signal”) including a standard definition image signal, for example, as shown in FIG. . FIG.
Up to 18:00, a 3 channel SD broadcast signal is broadcast using 24 Mbps.
From 8:00, the program is switched to a one-channel HD broadcast signal program, and from 20:00, it is switched to a three-channel SD broadcast signal program again.

[0004]

Conventionally, as described above, since one commissioned broadcaster did not become one channel or a plurality of channels depending on the time zone, a remote control device for a broadcast receiver was also required. It was sufficient to be able to select a channel corresponding to the commissioned broadcaster, that is, a broadcasting station. However, if the broadcast transmitted by one commissioned broadcaster becomes one channel or three channels depending on the time zone, it becomes difficult to select a channel with the conventional remote control device. There was a problem.

The present invention has been made to solve this problem. Even when one broadcasting company transmits a program with a different number of channels depending on the time zone, the program can be selected accurately. An object is to provide a remote control device.

[0006]

According to the first aspect of the present invention, there is provided an image processing apparatus which includes a high-definition image signal.
A remote control device for a broadcast receiver capable of receiving a plurality of digital broadcast signals in which a high-definition broadcast signal of a channel and a standard-definition broadcast signal of a plurality of channels including a standard-definition image signal are switched according to a time zone. A first selection button for selecting one of the plurality of receivable digital broadcast signals, and a second selection button for selecting one of a plurality of standard definition broadcast signals of a plurality of channels included in the one digital broadcast signal. And a two-selection button.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a broadcast receiver according to an embodiment of the present invention, and FIG.
1 is a diagram showing an appearance of a remote control device (hereinafter, referred to as “remote control”) of a broadcast receiver of FIG.

The broadcast receiver shown in FIG.
A tuner 101 that amplifies radio waves input from the CDMA and demodulates a transmission signal of a selected channel, and selects and outputs one of signals from a plurality of broadcasters included in the transmission signal; A descrambler 102 for descrambling an output signal; and a broadcast signal being received is a one-channel HD broadcast signal or a three-channel S
A demultiplexer 103 that identifies and outputs a D broadcast signal, extracts and outputs video data and audio data included in the broadcast signal, and performs information expansion processing on information-compressed video data output from the demultiplexer 103. Video decoder 104 and demultiplexer 1
03, an audio decoder 105 that performs information decompression processing of the information-compressed audio data output from the video decoder 03, an output terminal 106 for a video signal output from the video decoder 104, and an output terminal 107 for an audio signal output from the audio decoder 105. A CPU (Central Processing Unit) 108 for controlling the entire receiver,
RO in which programs executed by PU 108 are stored
M (Read Only Memory) 109 and RAM (Random Acces
s Memory) 110, a remote control interface unit 111 for demodulating an operation signal transmitted from the remote control 112 and supplying the demodulated operation signal to the CPU 108,
And a bus 113 for interconnecting 108 to 111.

A remote controller 112 shown in FIG. 2 includes a B1 button and a B2 button as first selection buttons for selecting a broadcaster, in other words, selecting one of a plurality of receivable digital broadcast signals. , ..., B9 button and 1
For selecting one of the three-channel SD broadcast signals transmitted by two broadcasters, in other words, one channel H
S1 button and S2 as second selection buttons for selecting a three-channel SD broadcast signal corresponding to the D broadcast signal
Button, an S3 button, a power button for turning on / off the power, a volume minus button for giving an instruction to lower the volume, and a volume plus button for giving an instruction to increase the volume.

Next, the operation of the receiver and the remote controller shown in FIGS. 1 and 2 will be described. First, a radio wave input from the antenna 100 is input to the tuner 101. In digital broadcasting, unlike analog broadcasting, a plurality of broadcasters broadcast on one channel. Therefore, the tuner 101 selects a channel to which a plurality of different frequencies are allocated, and also selects a plurality of channels included in one channel. A selection is made of one of the transmitted signals from the broadcaster. As described above, it is left to the broadcaster to broadcast one channel of the HD broadcast signal or three channels of the SD broadcast signal in the broadcasting of one broadcaster.

[0011] Next, the descrambler 102 scrambles the broadcast signal so that it cannot be viewed as it is when the user wants to pay for a pay broadcast or the like. It is a circuit for performing. The descrambler executes the descramble only when a specific card or the like that can be confirmed to have paid is inserted in the receiver. The demultiplexer 103 identifies whether the broadcast signal being received is an SD broadcast signal or an HD broadcast signal, and extracts and outputs video data and audio data from the broadcast signal. The video decoder 104 decodes the compressed video data and outputs a video signal as a video signal to the video output terminal 10.
6 to a video input of a monitor (not shown). The audio decoder 105 also decodes the compressed audio data and outputs it as an audio signal to an audio input of a monitor or another audio amplifier (not shown) via the audio output terminal 107.

The tuner 101 and the descrambler 10
2. The demultiplexer 103, the video decoder 104 and the audio decoder 105
It operates under the control of the PU 108. The remote controller interface unit 111 has a function of receiving a command (operation signal) from the remote controller 112 using infrared rays or the like and transmitting the command to the CPU 108.

Here, the operation will be described by taking as an example a case where a program is broadcast in the configuration as shown in FIG. First, it is assumed that the broadcast shown in FIG. 3 is the broadcast content of the broadcaster B5. The viewer presses the B5 button on the remote control at around 17:30. Then, in this time zone, news, drama, and cooking programs are broadcast by SD broadcast signals as can be seen from FIG. B5
When the button is pressed, the remote controller 112 informs the remote controller interface unit 111 that the B5 button has been pressed by infrared rays or the like. On the other hand, the CPU 108 receives a notification from the remote control interface 111 that the B5 button has been pressed on the remote control 112 due to an interruption or the like.
The CPU 108 receiving this transmits a control signal to the tuner 101 and the descrambler 102 so as to selectively receive the broadcast signal of the broadcaster B5.

At this stage, the signal from the demultiplexer 103 causes the CPU 108 to output the broadcast signal 3 of the SD broadcast signal.
Know that the channel is being broadcast. The CPU 108 that knows this, for example, instructs the video decoder 104 and the audio decoder 105 to decode only one of the programs (news).

At this time, the CPU 108 can display that three programs of the SD broadcast signal are being broadcast through an on-screen display built in the video decoder 104. The viewer sees this, S1, S
2. It is known that pressing the S3 button is effective. In addition, this indication is LED (light emitting diode) of the TV body
This remote control is a two-sided remote control, and an L1, S2, S3 button on the remote control is
The viewer may be informed by displaying that it is valid on an ED, liquid crystal, or the like. In this case, when the SD broadcast is performed only on the channels corresponding to the S1 button and the S3 button, for example, the SD broadcast can be displayed on the on-screen display, the television body, or the remote controller.

When the viewer presses any one of the S1, S2, and S3 buttons on the remote controller 112,
In the same manner as when the B5 button is pressed, the C
The PU 108 is notified that any of the S1 to S3 buttons has been pressed. CPU 108 is currently broadcasting company B
5 is selected, and 3 for news, drama, and cooking
Know that two SD broadcast signal programs are being broadcast. Therefore, the CPU 108 executes the demultiplexer 10
When the S1 button is pressed, an instruction is made to send only news program data to the video decoder 104 and the audio decoder 105. When the S2 button is pressed, only drama program data is sent to the S3 button. Is pressed, an instruction is sent to send only the data of the cooking program to the video decoder 104 and the audio decoder 105. In this manner, one of three SD broadcast signal programs, that is, one program of news, drama, or cooking is selected.

Now, if the viewer continues to watch the program as it is, 1
It is assumed that it is 8:00. 18:00 as shown in FIG.
Then, the broadcaster B5 starts a baseball broadcast program by broadcasting an HD broadcast signal. Therefore, at 18:00, or immediately before 18:00, the CPU 108 broadcasts one channel of H through the demultiplexer 103.
When the broadcast of the D broadcast signal is known, the video decoder 104 and the audio decoder 105 are instructed to decode the data of the baseball broadcast program of the HD broadcast signal.

At this time, the CPU 108 informs that only one program of the HD broadcast signal is being broadcast through an on-screen display built in the video decoder 104.
Can also be displayed. The viewer looks at this
It is known that pressing the 1, S2, and S3 buttons is invalid. Also, this display may be an LED of the TV main body, or this remote control is a two-sided remote control, and an LED, a liquid crystal, or the like indicates that the remote control is inactive at the S1, S2, S3 buttons on the remote control. The viewer may be notified.

At this stage, even if any one of the S1, S2, and S3 buttons of the remote controller 112 is pressed, and the CPU 108 is notified of the depression via the remote controller interface 111, the CPU 108 ignores the notification. Is configured. When the B5 button on the remote control is pressed between 18:00 and 20:00, the CPU 108 similarly instructs to decode only the baseball relay data of the HD broadcast signal, and presses the S1 button and S2 button.
Even if the button or S3 button is pressed, it is ignored.

Further, when the viewer continues watching the baseball broadcast as it is and reaches 20:00, as shown in FIG. And movie program and song program begin. So at 20:00 (or just before 20:00)
Then, the CPU 108 knows that the broadcast has become the three channels of the SD broadcast signal through the demultiplexer 103, and instructs the video decoder 104 and the audio decoder 105 to decode only one of the three programs (movie), for example. I do.

When switching from an HD broadcast signal to an SD broadcast signal of a plurality of channels, the first SD broadcast signal to be decoded is determined as follows, for example. If the viewer has made a reservation in advance, a channel according to the reservation setting is selected, and if such a reservation has not been made, a predetermined specific channel (S1 channel) is selected. .

It is also possible to arrange so that the viewer inputs the preference of the program in advance and makes a selection according to the preference. Furthermore, even if a configuration is adopted in which all three programs of a quiz, a movie, and a song program are decoded and displayed on three child screens within one screen by picture-in-picture or the like, and the viewer can select from among them. Good.

In any case, after switching to the program of the SD broadcast signal, the viewer presses any one of the S1, S2, and S3 buttons of the remote controller 112,
In the same manner as when the B5 button is pressed, the C
The PU 108 is notified that any of the S1 to S3 buttons has been pressed. CPU 108 is currently broadcasting company B
No. 5 is selected, and it is known that three SD broadcast signal programs of quiz, movie, and song program are being broadcast. Therefore, the CPU 108 executes the demultiplexer 103
When the S1 button is pressed, it is instructed to send only the data of the quiz program to the video decoder 104 and the audio decoder 105. When the S2 button is pressed, only the data of the movie program is sent. Is pressed, an instruction is given to send only the data of the song program to the video decoder 104 and the audio decoder 105. In this manner, one of three SD broadcast signal programs, that is, one program of a quiz, a movie, or a song is selected.

The present invention is not limited to the embodiment described above, and various modifications are possible. For example, one channel of the HD broadcast signal does not necessarily correspond to three channels of the SD broadcast signal, and may correspond to two or four channels of the SD broadcast signal. 2 buttons (S1 button and S2 button) or 4 buttons (S1 to S4 buttons)
What is necessary is just to have the structure provided.

When one broadcasting company transmits an HD broadcast signal of two or more channels, the remote controller 112 displays the first number of channels corresponding to the number of channels of the HD broadcast signal.
Provide a selection button.

[0026]

As described in detail above, the present invention provides a one-channel high-definition broadcast signal including a high-definition image signal,
One of a plurality of digital broadcast signals that can be received by a remote control device of a broadcast receiver capable of receiving a plurality of digital broadcast signals capable of receiving a plurality of digital broadcast signals that can be switched with a plurality of channels of standard definition broadcast signals including a standard definition image signal in accordance with a time zone. And a second selection button for selecting one of the standard definition broadcast signals of a plurality of channels included in one digital broadcast signal. Even if the broadcaster sends programs with different numbers of channels depending on the time of day,
A program can be selected accurately.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a broadcast receiver according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an appearance of a remote control device of the broadcast receiver in FIG. 1;

FIG. 3 is a diagram showing an example of a program configuration in the case where one broadcaster changes the number of channels according to the time zone and broadcasts.

[Description of Signs] 100 Antenna 101 Tuner 102 Descrambler 103 Demultiplexer 104 Video Decoder 105 Audio Decoder 108 CPU 111 Remote Control Interface Unit 112 Remote Control Device B1 to B9 First Selection Button S1, S2, S3 Second Selection Button

Claims (1)

[Claims] 1. A digital broadcast signal in which a one-channel high-definition broadcast signal including a high-definition image signal and a plurality of channels of standard-definition broadcast signals including a standard-definition image signal are switched according to a time zone. A remote control device for a broadcast receiver capable of receiving a plurality of digital broadcast signals, comprising: a first selection button for selecting one of the plurality of receivable digital broadcast signals; A second selection button for selecting one of the standard definition broadcast signals.