JP2002247478A - Receiver and control method, and display device and control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a user to simply confirm the channel number of a broadcast program having been viewed when power is interrupted. SOLUTION: An OSD control section 104 generates OSD data including a channel number selected at present by a tuner section 102. A synthesis section 105 composites prescribed video data outputted from a video audio processing section 103 and OSD data outputted from an OSD control section 104. Then a display section 106 displays a synthesized video image (including a channel number) synthesized by the synthesis section 105. After the lapse of a prescribed time, the control section 110 stops supply of the synthesized video image to the display section 106 and turns off the power of the receiver 100.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a receiving apparatus for notifying a user of a channel number of a predetermined broadcast program to a user, a control method for controlling the same, a display apparatus, and a control method for controlling the same.

[0002]

2. Description of the Related Art Conventionally, in a television broadcast receiving apparatus such as a television receiver, when a power is turned on by operating a remote control apparatus, or when another channel number is selected by operating the remote control apparatus,
The channel number of the currently received broadcast program is displayed for a predetermined time.

[0003]

However, in the conventional television broadcast receiver, when the power is turned off by operating the remote control device, the user is notified of the channel number of the currently received broadcast program. Immediately stopped working. Therefore, there is a problem that the user cannot confirm the channel number of the broadcast program being watched when the power is turned off unless the power is turned on again.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problem, and has as its object to enable the user to easily confirm the channel number of a broadcast program being viewed when the power is turned off.

[0005]

A receiving apparatus according to the present invention has receiving means for receiving a broadcast program corresponding to a predetermined channel number, and display means for displaying the broadcast program received by the receiving means. When the power is turned off, video information including the channel number of the broadcast program received by the receiving means is supplied to the display means for a predetermined time, and thereafter, the power is turned off.

[0006] A control method according to the present invention is a control method for controlling a receiving apparatus having receiving means for receiving a broadcast program corresponding to a predetermined channel number, and display means for displaying the broadcast program received by the receiving means. When the power is turned off, video information including a channel number of a broadcast program received by the receiving means is supplied to the display means for a predetermined time, and thereafter, the power is turned off.

[0007] A receiving apparatus of the present invention has a receiving means for receiving a broadcast program corresponding to a predetermined channel number, and an output means for outputting the broadcast program received by the receiving means to the outside. In this case, video information including a channel number of a broadcast program received by the receiving means is supplied to the output means for a predetermined time, and thereafter, the power is turned off.

[0008] A control method of the present invention controls a receiving apparatus having receiving means for receiving a broadcast program corresponding to a predetermined channel number, and output means for outputting the broadcast program received by the receiving means to the outside. In the control method, when the power is turned off, video information including a channel number of a broadcast program received by the receiving means is supplied to the output means for a predetermined time, and thereafter, the power is turned off. I do.

[0009] The display device of the present invention comprises: input means for externally inputting a broadcast program corresponding to a predetermined channel number;
Display means for displaying a broadcast program input to the input means, and when the power is turned off, video information including a channel number of the broadcast program input to the input means is supplied to the display means for a predetermined time. Then, the power is turned off.

The control method according to the present invention comprises: an input means for externally inputting a broadcast program corresponding to a predetermined channel number;
A control method for controlling a display device having display means for displaying a broadcast program input to said input means, wherein when power is turned off, an image including a channel number of the broadcast program input to said input means Information is supplied to the display means for a predetermined time, and thereafter, the power is turned off.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 is a diagram illustrating a main configuration of a television broadcast receiving apparatus according to a first embodiment.

In FIG. 1, reference numeral 100 denotes a television broadcast receiving apparatus; 101, an antenna; 102, a tuner unit;
03 is a video / audio processing unit, 104 is an on-screen display (hereinafter, OSD) control unit, 105 is a synthesis unit,
Reference numeral 106 denotes a display unit, 107 denotes a speaker, 108 denotes a power control unit, 109 denotes a receiving unit, 110 denotes a control unit, 120 denotes a remote control device (hereinafter, remote controller), 121 denotes a power key, and 122 denotes a channel key.

The tuner 102 receives a digital television broadcast of a predetermined system via the antenna 101. Further, the tuner unit 102 selects a transport stream corresponding to the channel number specified by the control unit 110. The transport stream selected by the tuner unit 102 is supplied to the video / audio processing unit 103.

The video / audio processing unit 103 includes a tuner unit 10.
The video data and audio data of the broadcast program included in the transport stream selected in step 2 are decoded. The video data decoded by the video / audio processing unit 103 is
5 and decoded by the video / audio processing unit 103 is supplied to the speaker 107.

The synthesizing unit 105 synthesizes the video data output from the video / audio processing unit 103 and the OSD data output from the OSD control unit 104. The display unit 106 displays the video data output from the combining unit 105. still,
The display unit 106 includes a display such as a liquid crystal display and a CRT.

When the power supply of the receiving apparatus 100 is turned on, the power supply control section 108 supplies power to each section constituting the receiving apparatus 100. Further, when the power of the receiving device 100 is turned off, the power control unit 108 reduces or cuts off the power supplied to each unit configuring the receiving device 100.

Receiving section 109 receives a control signal transmitted from remote controller 120. The received control signal is supplied to the control unit 110. The control unit 110 controls the receiving unit 10
At step 9, the control signal received is analyzed, and a process corresponding to the control signal is executed. The control unit 110 includes a microcomputer and a memory that stores a control program that can be processed by the microcomputer.

The remote control 120 includes operation keys such as a power key 121 and a channel key 122 for designating a desired channel number. When the power key 121 is operated,
The control unit 110 controls the power control unit 108 and
Turn the 00 power on or off. When the channel key 122 is operated, the control unit 110 controls the tuner unit 102 to select a transport stream corresponding to a channel number desired by the user.

Next, main processing procedures of the television broadcast receiving apparatus according to the first embodiment will be described with reference to FIG.

In step S201, the control unit 110
Analyzes the control signal received by the receiving unit 109, and determines whether to turn off the power of the receiving apparatus 100. To turn off the power of the receiving apparatus 100, step S202
If not, the flow chart ends.

In step S202, control unit 110
Notifies the OSD control unit 104 of the channel number currently selected by the tuner unit 102. OSD control unit 10
4 generates OSD data including the channel number notified from the control unit 110. The video / audio processing unit 10
Reference numeral 3 outputs predetermined video data (for example, blue screen) and mutes the output of audio data. The synthesizing unit 105 outputs the predetermined video data output from the video / audio processing unit 103 and the O video output from the OSD control unit 104.
Combine with SD data. Then, the display unit 106 displays the combined video (including the channel number) combined by the combining unit 105. By viewing the channel number of the composite image displayed on the display unit 106, the user can easily confirm the channel number of the broadcast program that was being viewed when the power of the receiving apparatus 100 was turned off.

In step S203, control unit 110
Determines whether a predetermined time has elapsed since it was determined to turn off the power. If the predetermined time has elapsed, the process proceeds to step S204, and if not, the process proceeds to step S202.
Proceed to.

In step S204, control unit 110
Is the composite video (including the channel number) on the display unit 106
Is stopped, and the power supply of the receiving apparatus 100 is turned off. When the power of the receiving apparatus 100 is turned off, the power control unit 108 reduces or cuts off the power supplied to the tuner 102, the video / audio processing unit 103, the display unit 106, the speaker 107, and the like.

As described above, according to the television broadcast receiver according to the first embodiment, the power of the receiver 100 is displayed after displaying the channel number of the broadcast program watched by the user for a predetermined time. Since the power is turned off, the channel number of the broadcast program being viewed when the power is turned off can be easily confirmed.

(Second Embodiment) FIG. 3 is a diagram illustrating a main configuration of a television broadcast receiving system according to a second embodiment.

In FIG. 3, reference numeral 300 denotes a television broadcast receiving apparatus; 301, an antenna; 302, a tuner section;
03 is a video / audio processing unit, 304 is an on-screen display (hereinafter, OSD) control unit, 305 is a synthesis unit,
306 is a video / audio output terminal, 307 is a power control unit, 30
8 is a receiving unit, 309 is a control unit, 320 is a remote control device (hereinafter, remote controller), 321 is a power key,
22, a channel key; and 330, a display device.

The tuner section 302 receives a digital television broadcast of a predetermined system via the antenna 301. The tuner unit 302 selects a transport stream corresponding to the channel number specified by the control unit 309. The transport stream selected by the tuner unit 302 is supplied to the video / audio processing unit 303.

The video / audio processing unit 303 includes a tuner 30
The video data and audio data of the broadcast program included in the transport stream selected in step 2 are decoded. The video data decoded by the video / audio processing unit 303 is
5 and decoded by the video / audio processing unit 303 is supplied to a video / audio output terminal 306.

The synthesizing unit 305 synthesizes the video data output from the video / audio processing unit 303 and the OSD data output from the OSD control unit 304. Video / audio output terminal 3
Reference numeral 06 converts the video data output from the synthesizing unit 305 into an analog video signal of a predetermined format and outputs the analog video signal to the outside. The video / audio output terminal 306 is connected to the video / audio processing unit 303.
Is converted into an analog audio signal of a predetermined format and output to the outside. The display device 330 inputs the video signal and the audio signal output from the video / audio output terminal 306, and displays the video signal on a display (liquid crystal display,
CRT, etc.), and audio signals from speakers.

When the power supply of receiving apparatus 300 is turned on, power supply control section 307 supplies power to each section constituting receiving apparatus 300. In addition, when the power of the receiving device 300 is turned off, the power control unit 307 reduces or cuts off the power supplied to each unit configuring the receiving device 300.

Receiving section 308 receives a control signal transmitted from remote controller 320. The received control signal is supplied to the control unit 309. The control unit 309 controls the reception unit 30
The control signal received at step 8 is analyzed, and processing corresponding to the control signal is executed. The control unit 309 includes a microcomputer and a memory that stores a control program that can be processed by the microcomputer.

The remote controller 320 has operation keys such as a power key 321 and a channel key 322 for designating a desired channel number. When the power key 321 is operated,
The receiving device 300 controls the power control unit 307 to turn on or off the power of the receiving device 300. When the channel key 322 is operated, the control unit 309 controls the tuner unit 302 to select a transport stream corresponding to a channel number desired by the user.

Next, a main processing procedure of the television broadcast receiving system according to the second embodiment will be described with reference to FIG.

In step S401, the control unit 309
Analyzes the control signal received by the receiving unit 308, and determines whether to turn off the power of the receiving device 300. To turn off the power of the receiving device 300, step S402
If not, the flow chart ends.

In step S402, the control unit 309
Notifies the OSD control unit 304 of the channel number currently selected by the tuner unit 302. OSD control unit 30
4 generates OSD data including the channel number notified from the control unit 309. The video / audio processing unit 30
Reference numeral 3 outputs predetermined video data (for example, blue screen) and mutes the output of audio data. The synthesizing unit 305 determines the predetermined video data output from the video / audio processing unit 303 and the O
Combine with SD data. And the video / audio output terminal 3
Reference numeral 06 outputs the combined video (including the channel number) combined by the combining unit 305 to the outside. By viewing the channel number of the composite image displayed on the display device 330, the user can easily confirm the channel number of the broadcast program that was being viewed when the power of the receiving device 300 was turned off.

In step S403, the control unit 309
Determines whether a predetermined time has elapsed since it was determined to turn off the power. If the predetermined time has elapsed, the process proceeds to step S404; if not, the process proceeds to step S402.
Proceed to.

In step S404, control unit 309
Stops supplying the composite video (including the channel number) to the video / audio output terminal 306, and turns off the power of the receiving device 300. When the power of the receiving apparatus 300 is turned off, the power control unit 307 sets the tuner 30
2. Reduce or cut off the power supplied to the video / audio processing unit 303 and the like.

As described above, according to the television broadcast receiving system according to the second embodiment, the channel number of the broadcast program watched by the user is output to the outside for a predetermined time, and then the power of the receiving apparatus 300 is To turn off
You can easily check the channel number of the broadcast program you were watching when you turned off the power.

(Third Embodiment) FIG. 5 is a diagram for explaining a main configuration of a television broadcast receiving system according to a third embodiment.

In FIG. 5, 500 is a television broadcast receiving apparatus, 501 is an antenna, 502 is a tuner section,
03 is a digital communication interface (hereinafter, IEEE 1394-1995) compliant with the IEEE 1394-1995 standard.
Interface), 510 is a display device, 511 is an IE
EE1394 interface, 512 is a video / audio processing unit, 513 is an on-screen display
OSD) control section, 514 is a synthesis section, 515 is a display section,
Reference numeral 16 denotes a speaker, 517 denotes a power control unit, 518 denotes a reception unit, 519 denotes a control unit, 520 denotes a remote control device (hereinafter, remote control), 521 denotes a power key, and 522 denotes a channel key.

Tuner section 502 receives a digital television broadcast of a predetermined system via antenna 501. Also, the tuner unit 502 selects a transport stream corresponding to the channel number specified on the display device 510. IEEE 1394 interface 5
03 transmits the transport stream selected by the tuner unit 502 to the display device 510.

IEEE 1394 interface 511
Receives the transport stream transmitted from the television broadcast receiving apparatus 500. The received transport stream is supplied to the video / audio processing unit 512.

The video / audio processing unit 512 is an IEEE 139
4 interface 511 decodes the video data and the audio data of the broadcast program included in the transport stream. The video data decoded by the video / audio processing unit 512 is supplied to a synthesizing unit 514, and the audio data decoded by the video / audio processing unit 512 is supplied to a speaker 516.

The synthesizing unit 514 synthesizes the video data output from the video / audio processing unit 512 with the OSD data output from the OSD control unit 513. The display unit 515 displays the video data output from the combining unit 514. still,
The display unit 515 includes a display such as a liquid crystal display and a CRT.

When the power supply of the display device 510 is turned on, the power supply control unit 517 supplies power to each unit constituting the display device 510. In addition, when the power of the display device 510 is turned off, the power control unit 517 reduces or cuts off the power supplied to each unit included in the display device 510.

Receiving section 518 receives a control signal transmitted from remote controller 520. The received control signal is supplied to the control unit 519. The control unit 519 includes the receiving unit 51
The control signal received at step 8 is analyzed, and processing corresponding to the control signal is executed. The control unit 519 includes a microcomputer and a memory that stores a control program and the like that can be processed by the microcomputer.

The remote control 520 includes operation keys such as a power key 521 and a channel key 522 for designating a desired channel number. When the power key 521 is operated,
The display device 510 controls the power control unit 517 to turn on or off the power of the display device 510. When the channel key 522 is operated, the control unit 519 controls the receiving device 500 to select a transport stream corresponding to a channel number desired by the user.

Next, main processing procedures of the television broadcast receiving system according to the third embodiment will be described with reference to FIG.

In step S601, the control unit 519
Analyzes the control signal received by the receiving unit 518, and determines whether to turn off the power of the display device 510. To turn off the power of the receiving apparatus 100, step S602
If not, the flow chart ends.

In step S602, the IEEE13
The 94 interface 511 transmits command data for inquiring the channel number currently selected by the receiving device 500 to the receiving device 500, and receives response data corresponding to the command. The control unit 519 receives the response data from the
0 acquires the currently selected channel number.

In step S603, the control unit 519
Notifies the OSD control unit 513 of the channel number currently selected by the receiving device 500. OSD control unit 513
Generates OSD data including the channel number notified from the control unit 519. Also, the video / audio processing unit 512
Outputs predetermined video data (for example, a blue screen) and mutes the output of audio data. The synthesizing unit 514 includes the predetermined video data output from the video / audio processing unit 103 and the OS data output from the OSD control unit 513.
Combine with D data. Then, the display unit 515 displays the combined video (including the channel number) combined by the combining unit 514. By viewing the channel number of the composite image displayed on the display unit 515, the user can easily confirm the channel number of the broadcast program being viewed when the power of the display device 510 is turned off.

In step S603, the control unit 519
Determines whether a predetermined time has elapsed since it was determined to turn off the power. If the predetermined time has elapsed, the process proceeds to step S605; otherwise, the process proceeds to step S603.
Proceed to.

In step S604, control unit 519
Is a composite video (including a channel number) on the display unit 515.
Is stopped, and the power of the display device 510 is turned off. When the display device 510 is changed to the power-off state, the power supply control unit 517
12, the power supplied to the display unit 515, the speaker 516, and the like is reduced or cut off.

As described above, according to the television broadcast receiving system according to the third embodiment, the channel number of the broadcast program watched by the user is displayed for a predetermined time, and then the power of the display device 510 is turned off. Since the power is turned off, the channel number of the broadcast program being viewed when the power is turned off can be easily confirmed.

[0056]

As described above, according to the present invention,
You can easily check the channel number of the broadcast program you were watching when you turned off the power.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a main configuration of a television broadcast receiving device according to a first embodiment.

FIG. 2 is a flowchart illustrating a main processing procedure of the television broadcast receiving device according to the first embodiment.

FIG. 3 is a diagram illustrating a main configuration of a television broadcast receiving system according to a second embodiment.

FIG. 4 is a flowchart illustrating a main processing procedure of the television broadcast receiving system according to the second embodiment.

FIG. 5 is a diagram illustrating a main configuration of a television broadcast receiving system according to a third embodiment.

FIG. 6 is a flowchart illustrating a main processing procedure of the television broadcast receiving system according to the third embodiment.

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Claims (12)

[Claims] 1. A receiving means for receiving a broadcast program corresponding to a predetermined channel number, and a display means for displaying a broadcast program received by the receiving means. A receiving device for supplying video information including a channel number of the broadcast program received in the display means to the display means for a predetermined time, and thereafter turning off the power. 2. The receiving device according to claim 1, wherein the power is turned off based on a control signal transmitted from the remote control device. 3. A control method for controlling a receiving apparatus comprising: receiving means for receiving a broadcast program corresponding to a predetermined channel number; and display means for displaying a broadcast program received by said receiving means. And turning off the power supply after supplying video information including a channel number of the broadcast program received by the receiving means to the display means for a predetermined time. 4. The control method according to claim 3, wherein the power is turned off based on a control signal transmitted from the remote control device. 5. A receiving means for receiving a broadcast program corresponding to a predetermined channel number, and an output means for outputting a broadcast program received by said receiving means to an external device. A receiving apparatus for supplying video information including a channel number of a broadcast program received by a receiving means to the output means for a predetermined time, and thereafter turning off the power. 6. The receiving device according to claim 5, wherein the power is turned off based on a control signal transmitted from the remote control device. 7. A control method for controlling a receiving apparatus comprising: a receiving unit that receives a broadcast program corresponding to a predetermined channel number; and an output unit that outputs a broadcast program received by the receiving unit to the outside. When the power is turned off, video information including a channel number of a broadcast program received by the receiving means is supplied to the output means for a predetermined time, and thereafter, the power is turned off. 8. The control method according to claim 7, wherein the power is turned off based on a control signal transmitted from the remote control device. 9. An input means for externally inputting a broadcast program corresponding to a predetermined channel number, and a display means for displaying the broadcast program input to the input means, wherein when the power is turned off, A display device, wherein video information including a channel number of a broadcast program input to an input unit is supplied to the display unit for a predetermined time, and thereafter, the power is turned off. 10. The display device according to claim 9, wherein the power is turned off based on a control signal transmitted from the remote control device. 11. A control method for controlling a display device comprising: input means for externally inputting a broadcast program corresponding to a predetermined channel number; and display means for displaying the broadcast program input to said input means. A control method comprising: when turning off the power, supplying video information including a channel number of a broadcast program input to the input means to the display means for a predetermined time, and thereafter turning off the power. 12. The control method according to claim 11, wherein the power is turned off based on a control signal transmitted from the remote control device.