JP2924610B2 - Television receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television (T) capable of quickly selecting a desired broadcast by a simple operation similar to the sequential selection even in an area having a large number of receivable broadcasts.
V) Related to a receiver.

[0002]

2. Description of the Related Art A channel selection method performed by a user includes a method of directly inputting a desired channel (CH) using a numeric keypad, and a method of presetting a channel using a channel up key (up key) or a channel down key (down key). There is a sequential channel selection method of sequentially selecting a channel to be used and selecting a desired channel.

FIG. 8 is a block diagram mainly showing a channel selection control section of a conventional television receiver, and the channel selection operation will be described sequentially.

When the channel up key or the channel down key of the remote controller 8 is pressed, a signal is transmitted from the remote controller 8 and received by the remote control light receiving section 7 of the TV receiver body. Signals received by the remote control light receiving section 7 are sequentially subjected to processing for channel selection by the channel selection control device 10 (comprising a microcomputer or the like). And the tuning control device 1
0 indicates that the tuner 2 sends a channel selection control signal to sequentially perform channel selection, and at the same time, causes the video processing circuit 4 to perform OSD (On Screen Disp.
lay) signal to cause the CRT 5 to display the currently received channel number. In addition, the tuning control device 10 sets T
When channel up / channel down is input in the key input unit 6 on the V receiver main body side, the same processing as when input is performed using the remote controller 8 is performed.

The tuning control device 10 includes a remote control code analyzing unit 11, a key code analyzing unit 12 for analyzing a key input on the main unit, a channel up / down unit 13, a tuning unit 14,
It comprises an OSD processing unit 15 and a timer 16.
The operation of each unit will be described with reference to the flowchart of FIG.

In FIG. 9, first, in steps 102 and 1
At 04, it is determined whether the channel up key or the channel down key has been pressed. This determination is performed by the remote control code analysis unit 11 and the key code analysis unit 12. If neither key is pressed, the process returns to the start of step 101.

If it is determined in step 102 that the channel up key has been pressed, a channel up process is performed in step 103. If it is determined in step 104 that the channel down key has been pressed, step 105
Channel down processing is performed. The channel up / down processing is performed by the channel up / down unit 13. In this processing, the channel preset data set in the EEPROM (electrically erasable / rewritable read-only memory) 9 is read, and the current Set channel numbers and set data for channel selection / OSD. In short, a process for receiving a channel that is preset one channel above or one channel below the previous reception channel is performed.

Next, step 103 or step 10
Based on the tuning data set in step 5, a tuning control signal is sent to the tuner 2 by a tuning process (processed by the tuning unit 14) in step 106, and the current channel is tuned (one channel is selected from the previous reception channel). Channel selection preset on the upper side or one lower side) is performed. Also, based on the OSD data set in step 103 or 105, the OSD display signal of the current channel is sent to the video processing circuit 4 by the OSD process (processed by the OSD processing unit 15) in step 107, and the channel number is set. The program is displayed on the CRT 5 simultaneously with the received program. Then, step 108
, The reception of the current channel and the display of the channel number are maintained for a predetermined time (for example, about 0.8 seconds), and the process returns to step 102. The predetermined time is measured by the timer 16.

Then, when returning to step 102,
If the channel up key or the channel down key is not pressed, the reception of the current channel is continued,
If the channel up key or the channel down key is kept depressed, channel selection is performed sequentially at intervals of 0.8 seconds.

[0010] The wait processing in step 108 may be performed before the channel selection processing in step 106.

[0011]

The sequential channel selection is convenient when selecting a channel while checking the program contents of each broadcasting station.
However, in the above-described sequential channel selection at a constant speed (in the above example, at intervals of 0.8 seconds), if there are many broadcast stations that can be received, it takes too much time to search for a desired broadcast ( For example, the channel currently being received is separated from the desired channel), which is inconvenient.

Even if there are a large number of broadcast stations that can be received, the desired broadcast can be immediately watched by directly inputting the desired broadcast channel number using the numeric keypad, instead of selecting the stations sequentially. However, direct input using the numeric keypad requires 10 keys instead of two keys such as channel up / down.
Since it is necessary to operate individual keys, the user has to move his eyes from the screen to the remote controller to perform the operation, which is troublesome.
In particular, when the room is dark, it is inconvenient to operate the ten keys while checking the positions of the keys on the remote controller. Also, in the ten key input, it is necessary to memorize the channel number accurately, and when there are many broadcast stations that can be received, it is troublesome to memorize the channel number accurately.

It is an object of the present invention to provide a television receiver which can quickly select a desired broadcast by a simple operation similar to the sequential selection even when the number of receivable broadcast stations is large. The purpose is.

[0014]

Accordingly, in order to solve the above-mentioned problems, the present invention provides a method of operating a channel up / down key.
Depending on the operation, preset channel channels
Channel number is incremented or decremented sequentially to the current channel
A channel up / down section for setting a number,
Channel set by channel up / down section
Channel number data is supplied, and the set channel
A tuning control unit that causes the tuner unit to select a station by number,
From the channel up / down section, set the channel
Channel number data is supplied, and the
And a screen display processing unit for displaying the panel number on the screen.
In a television receiver, low-speed channel up /
In the down mode, the tuning control unit is operated to
The channel of the channel number set in the tuner section
Channels are sequentially selected, and the screen display processing unit
To display the set channel number on the screen
Control in high-speed channel up / down mode
Makes the tuning control unit inoperable, and sets the tuner unit
And the screen display processing unit
Displays the set channel number on the screen.
The present invention provides a television receiver characterized in that it is provided with a control means for controlling so as to control the television receiver.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the TV receiver of the present invention, when a channel up key or a channel down key is kept pressed, a predetermined number of broadcasting stations are sequentially selected and then the channel number sequential up / down display is continued. By stopping channel selection processing by switching channels, the speed of channel up / down is increased, and a desired broadcast can be quickly selected.

FIG. 1 shows a block configuration of a main part of an embodiment of the present invention. The same parts as those of the conventional example are denoted by the same reference numerals, and the description of those parts will be omitted.

In this embodiment, a slow channel up key and a slow channel down key (hereinafter sometimes referred to as a slow channel up / down key), and a first channel up key and a first channel down key (hereinafter a first channel up key) are provided on the remote controller 28. / Down key). These four types of keys may be provided individually, or in order to reduce the number of keys and make operation easier, a slow channel up key and a slow channel down key are provided as one seesaw key, a first channel up key, and a first channel. The down key may be one seesaw key. Alternatively, two keys, a channel up key and a channel down key, may be used, and the mode may be switched between slow and fast depending on the pressing strength. A key having the same function as that provided on the remote controller 28 is also provided on the key input section 26 of the TV receiver main body.

With the slow channel up / down key, channels are sequentially selected (selection and OSD display of channel numbers) at a low speed (at the same speed as in the conventional art, at intervals of 0.8 seconds). This is the first control mode. The first channel up / down key is used to sequentially select channels (selection and OSD display of channel number) for a predetermined channel at a medium speed (interval of 0.4 seconds), and then at a high speed (interval of 0.25 seconds). Perform only up / down. That is, only channel number setting and OSD display up / down are performed without performing channel selection by switching channels. This is the second control mode. At high speeds such as 0.25 second intervals, stable reception is not possible in the tuner section, and humans often cannot confirm program contents. Therefore, only channel number up / down without sequentially selecting channels. Is enough.

In the present embodiment, the period of sequential channel selection from the middle speed to the high speed is set to 15 channels as an example. In addition, when the channel is up / down at a high speed, the screen of the CRT 5 is blackened by applying a picture mute to make it easy to see the channel number display changing at a high speed. The color of the screen at the time of picture mute may be another color.

After the speed has been increased, the channel numbers displayed on the CRT are sequentially changed while the numbers are being changed. If the up / down key is released with a predetermined channel number, reception is performed using the channel number at the time when the key is released. Done. next,
Pressing the first or slow channel up / down key resumes channel selection sequentially.

As described above, in this embodiment, in addition to the sequential channel selection as in the prior art, the channel selection process is stopped by continuing to press the first channel up / down key, and only the channel up / down operation is performed at high speed. (Only channel number setting and OSD display up / down) can be performed. Therefore, the following channel selection operation can be performed.

For a certain number of channels, a desired broadcast is searched for while checking the contents of a broadcast program by successive channel selection. If the desired broadcast is not found by the sequential channel selection, a high-speed channel up / down mode is set. Only the channel number is increased or decreased by, for example, 50 channels. Then, channel selection is performed again sequentially from the channel numbers up or down by 50 channels to search for a desired broadcast.

Further, the operation of the sequential channel selection and the high-speed channel up / down operation can be performed by two key operations of the first channel up / down. (Up to four keys can be operated by adding two keys for down.)
Therefore, you can operate while looking at the screen without moving your eyes from the screen to the remote control.

Although the user does not accurately remember the channel number of the desired broadcast station, but remembers how many channels are near, without using a numeric keypad, the same first channel up / down key as in channel selection is used. By operation, the selected channel can be quickly moved to the vicinity of the channel number of the desired broadcasting station.

As described above, according to the present embodiment, not only the channel selection operation but also the high-speed channel up / down operation in which the channel numbers to be received and displayed can be selected while the channel numbers are being increased / decreased at a high speed. But,
Since it can be performed with the same simple operation as sequential tuning, even if there are many broadcast stations that can be received, the desired broadcasting can be easily and quickly selected by combining the sequential tuning operation and the high-speed channel up / down operation. The station can be operated and operability is greatly improved.

Next, a description will be given of a tuning control device 20 for performing the above-described tuning operation. Tuning control device 20
As shown in FIG. 1, a remote controller code analyzer 31 similar to the conventional one, a key code analyzer 32 for analyzing a key input on the main body side, a channel selector 35, an OSD processor 36, a timer 37
And a slow channel up / down unit 33 corresponding to the conventional channel up / down unit 13 and a first channel up / down unit 34 newly provided this time.

A large flow of the processing procedure of the tuning control unit 20 is shown in the flowchart of FIG. Step 20 in FIG.
2, step 204, step 206, step 208
Then, it is determined whether or not the slow channel up / down key and the fast channel up / down key have been pressed. This determination is made by the remote control code analysis unit 31 and the key code analysis unit 32.

When a key is pressed, a subroutine of processing corresponding to each key is a slow channel up process at step 203, a slow channel down process at step 205, a first channel up process at step 207, and a first channel at step 209. A down process is performed and the process returns to step 202. If there is no key input, it is determined in step 210 whether or not the state immediately before the state where there is no key input is a state where one of the channel up / down keys has been pressed. If it is determined that the state where there is no key input is a state where the key is released from the state where the key is pressed (referred to as a key OFF state), a channel up / down key off process (step 211) is performed. Thereafter, the flow returns to step 202. When it is determined that the state is another state, the process returns to step 202 without passing through step 211.

Next, each subroutine will be described.
First, FIG. 3 shows a flowchart of the slow channel up processing. This is the same processing as the conventional sequential tuning,
The channel up process of step 301 is performed by the slow channel up / down unit 33, and in that process, E
The channel preset data set in the EPROM 9 is read, the current channel number is set, and data for channel selection / OSD is set. In short, a process for receiving a channel preset one level higher than the previous reception channel is performed.

Based on the tuning data set in step 301, a tuning control signal is sent to the tuner 2 by a tuning process (processed by the tuning unit 35) in step 302, and the current channel is tuned (previous receiving channel). (Selection of a channel preset one level above). Further, based on the OSD data set in step 301, the OSD display signal of the current channel is sent to the video processing circuit 4 by the OSD process (processed by the OSD processing unit 36) in step 303, and the channel number is set to the received program. At the same time, it is displayed on the CRT 5. Thereafter, the reception of the current channel and the display of the channel number are maintained for a predetermined time (for example, about 0.8 seconds) by the wait processing in step 304, and the process returns to the main routine. The predetermined time is measured by the timer 37. If the slow channel up key is kept pressed, steps 301 to 304 are repeated.

Note that the wait processing in step 304 may be performed before the channel selection processing in step 302.

FIG. 4 is a flowchart of the slow channel down process. This process is the same as the slow channel up process described with reference to FIG. 3 except that the channels are sequentially lowered, and a description thereof will be omitted.

In the sequential channel selection of the slow channel up / down processing, the switching speed of the channel selection is low.
You can tune in while checking the broadcast content.

Next, the subroutine of the first channel up processing which is a characteristic part of this embodiment will be described with reference to FIG.
This will be described together with the flowchart shown in FIG.

First, in step 501, channel up processing, that is, EE similar to that at the time of slow channel up, is performed.
Read channel preset data set in PROM 9, set current channel number, select channel /
Set the data for OSD. This is performed by the first channel up / down unit 34.

At step 502, the number of times the first channel has been up is counted. This is performed by the first channel up / down unit 34. In step 503, it is determined whether or not the counted number has exceeded 15 (ie, whether or not 15 channels have been sequentially selected). Branches processing. If the count number is 15 or less, the mode is the medium-speed sequential channel selection processing mode, and the process proceeds to step 504. If the count number is more than 15, the high-speed channel up mode is performed and the process proceeds to step 505.

In the medium-speed sequential channel selection processing mode, channel selection is performed in step 504, and OSD processing is performed in step 506. The tuning process and the OSD process are the same as in the slow channel up described above.

In the high-speed channel up mode, only the channel up processing is performed without performing the channel selection processing.
At 06, an OSD process for displaying a channel number is performed. The picture mute in step 505 is fast (0.2
The channel number display changes at 5 second intervals.
4 sends a control signal to the video processing circuit 4 to make the screen of the CRT 5 black.

In the next step 507, step 503
Steps 508 and 509 are performed.
, To sequentially perform channel selection and channel up processing, respectively, and terminate the subroutine. If the first channel up key is kept pressed, step 50
Repeat steps 1-509.

The processing of steps 502, 503 and 507 is performed by the first channel up / down unit 34.

Note that the weight processing in step 508 may be performed before step 504, and in step 509
May be performed between step 505 and step 506.

There is another reason why the picture mute is applied at the time of high-speed channel up / down in order to make it easy to see the channel number display changing at high speed (at intervals of 0.25 seconds).
Since the channel selection is stopped sequentially at the time of high-speed channel up / down, what is received by the tuner unit at the time of high-speed channel up / down is the sequential channel selection immediately before shifting to the high-speed channel up / down. When a broadcast that is received and is received without picture mute is displayed on the screen, the OSD display channel number is
This is to prevent the user from misunderstanding that the broadcast channel number is currently displayed on the screen.

FIG. 6 is a flowchart of the first channel down processing. This process is the same as the first channel up process described with reference to FIG. 5 except that the channel is sequentially reduced, and thus the description is omitted here.

By combining the medium-speed sequential channel selection operation and the high-speed channel up / down operation as described above, even if there are many receivable broadcasts, a desired broadcast can be easily and quickly selected. The operability is greatly improved.

Next, channel up / down key OF
The subroutine of the F process will be described with reference to the flowchart of FIG. This channel up / down key O
The FF processing is performed in order of channel selection or high-speed channel up /
This processing is performed when the key is released from the state where the down operation is being performed, that is, the state where the slow or fast channel up / down key is pressed.

First, steps 701 and 702
To determine whether the first channel up / down key has been released or the slow channel up / down key has been released. This determination is made by the remote control code analysis unit 3
1, performed by the key code analyzer 32. When the slow channel up / down key is released, the key OFF process in step 706 and the channel up / down count (step 501 in FIG. 5 and the count in step 602 in FIG. 6) in step 707 are cleared. End the subroutine. The key-off process in step 706 is a process for continuing reception on the channel finally specified by the channel up / down key and stopping the OSD display of the channel number after a predetermined time.

The count number is cleared in step 707 because the timing of switching from the medium-speed sequential channel selection operation to the high-speed channel up / down operation is always constant (that is, always switched over for 15 channels). )
That's why.

If the first channel up / down key is released, it is determined in step 703 whether the operation is a medium-speed sequential channel selection operation or a high-speed channel up / down operation. This corresponds to step 503 in FIG.
This is the same processing as step 603 in FIG. If it is determined that the channels are sequentially selected at the medium speed, the key-off process in step 706 and the channel up /
After clearing the down count, the subroutine ends.

If it is determined in step 703 that a high-speed channel up / down operation has been performed, step 7
04 tuning process (performed by the tuning unit 35), step 705
Is performed (performed by the OSD processing unit 36), and the processing ends through steps 706 and 707.

The above steps 703 and 707 are performed by the first channel up / down unit 34. Step 7
The key-off processing of 06 is performed by the slow channel up / down unit 33 and the first channel up / down unit 3
4. The selection is performed by the channel selection unit 35 and the OSD processing unit 36.

In the OSD process of the above embodiment, only one channel number is displayed at a time while the channel number is up / down. However, a plurality of channel numbers may be displayed simultaneously and sequentially. Examples of the simultaneous display include a shift display and a scroll display. 10 and 11 show an example of up-down shift display, FIG. 12 shows an example of up-down scroll display, and FIG. 13 shows an example of left-right scroll display. Of the plurality of channel numbers displayed at the same time, the channel number currently being received at the time of sequential channel selection and the channel number set as the current channel at the time of high-speed channel up / down are distinguished from other channel numbers. For example, a process of changing the color of another channel number and displaying it, or displaying it with a cursor may be performed. At the same time as the channel number, information such as the broadcast station name and the broadcast content of the channel number may be displayed together. Release Okukyoku name, information such as broadcast content, like channel preset data EEP
It is stored in the ROM 9.

An example of the up-down shift display shown in FIGS. 10 and 11 will be described. FIG. 10 shows a display state at the time of high-speed channel up, in which picture mute is applied, the entire screen is set to a white background, and the channel number is displayed together with the broadcast station name. FIG. 11 shows only the channel display part, not the entire screen, and shows the transition state of the shift display (state in which the channels are sequentially raised in the direction of FIG. 11A to FIG. 11D). The channel number set as the current channel has a back color portion different in color from other channel numbers. The back color part moves downward one by one according to the speed of the high-speed channel up (the sequential tuning speed at the time of sequential channel selection). As shown in FIG.
Starting from CH, the back color part shifts to 6CH and 8CH, and the back color part shifts to the lowest channel number of one channel list, the channel list is renewed, and the back color part is replaced with a new channel list. Shift to the top channel number. When the channel is down, the operation is the reverse of the up operation.

The information of the broadcast station name is stored in the EEPROM 9 shown in FIG. 1 similarly to the channel preset data, and the slow channel up / down section 33, the first channel up / down section 34, the OSD processing section 36
Thus, necessary data is read from the EEPROM 9 and
Create a channel list, view the channel list,
It controls the movement of the back collar and the updating of the channel list.

At the time of sequential channel selection, since the picture mute is released, the broadcast currently being received on the current channel is displayed on the screen, and the same channel number as that at the time of high-speed channel up / down is displayed on the screen. Display is performed.

Next, the vertical scroll display shown in FIG. 12 will be described. Like FIG. 11, FIG. 12 shows only the channel display part, not the entire screen, and shows the transition state of the scroll display (state in which the channels are sequentially raised in the direction of FIG. 12 (A) → (D)). The back color portion indicating the channel number set as the current channel is fixed at the center, and the channel number scrolls upward or downward by one channel. The scroll speed is in accordance with the channel selection speed and the high-speed channel up / down speed.

Similarly to the above-described vertical shift display and vertical scroll display, horizontal shift display and horizontal scroll display are also possible. FIG. 13 shows an example of the horizontal scroll display. In this state, the channels are sequentially raised in the direction of (A) → (D) in the same figure, and the back color portion indicating the channel number set as the current channel is fixed at the center. When the channel is up, the channel number display moves to the left, and when the channel is down, it moves to the right.

As another display state of the channel numbers, a state in which all the preset channel numbers are displayed over one screen or a plurality of screens and the cursor moves between the channel numbers can be considered.

If a plurality of channel numbers are sequentially displayed at the same time as described above, the relationship between the currently set channel number and the previous and next channel numbers can be understood, so that channel selection becomes easier. In particular, when there is a gap between preset channel numbers (for example, when there are 30 channels next to 18 channels), the display of one channel at a time repeats up / down to change the currently set channel. In some cases, it may not be possible to know where in the entire channel is located. However, such inconvenience is solved by displaying a plurality of channels simultaneously. Furthermore, in the simultaneous display of a plurality of channels, the channel selection operation can be performed while previously confirming the channel number to be shifted to next, so that even if the channel number is increased / decreased at a high speed, the channel can be easily selected without passing through the desired channel. It is possible to achieve both high-speed display of channel number up / down and easy tuning.

In the above-described embodiment, the video mute is applied during the high-speed channel up / down operation. However, the broadcast received immediately before shifting to the high-speed channel up / down operation is directly displayed on the screen. You may. Further, a method of projecting the broadcast with image quality adjustment for facilitating viewing of the channel display, such as slightly lowering the brightness, or a method of storing a received broadcast in a memory and projecting it as a still image may be considered.

Further, in the above-described embodiment, two modes are provided: a mode in which channel selection is always performed at a low speed, and a mode in which the channel selection is automatically shifted from a medium-speed sequential channel selection to a high-speed channel up / down operation. However, it is also possible to provide only a mode for automatically shifting from a channel selection to a high-speed channel up / down operation automatically, a mode for always performing a channel selection sequentially, and a mode for always performing a high-speed channel up / down operation. May be provided. In each case, the sequential tuning speed may be gradually increased (or slowed down) for every predetermined number of selected channels. In the above-described embodiment, the speed of the sequential channel selection in the always-in sequential channel selection mode and the speed of the sequential channel selection in the mode of automatically shifting to the high-speed channel up / down operation are as follows.
Although the speed of the sequential tuning in the sequential tuning mode is always slower, the speed of the two sequential tunings may be the same.

[0061]

As described above, the television receiver of the present invention selects a channel in the low-speed channel up / down mode.
Operate the control unit to set the channel set in the tuner unit.
Channel numbers in sequence,
The channel number set by the display processing unit is displayed on the screen.
Control to display high speed channel up / down mode.
Mode, the tuning control unit is deactivated and the tuner
Channel selection and stop by the screen display processing unit.
To display the set channel number on the screen.
The control means is provided for controlling, even if the number of broadcast stations that can be received is large, by combining the channel selection operation and the high-speed channel up / down operation sequentially,
The desired broadcast can be selected easily and quickly, and the operability is greatly improved.

With the channel up / down key,
Increase the channel number within the specified number of channels or
When lowered, slow channel up / down
And mode, by the channel up / down key,
Increase the channel number beyond the specified number of channels or
When the channel is lowered, high-speed channel up / down
One channel up if configured to be in mode
The slow channel up / down mode with the / key
Choosing between fast channel up / down mode
Can reduce the number of keys and simplify operation.
You.

In the high-speed channel up / down mode
Is configured to mute the video displayed on the screen.
Makes it easy to see the channel numbers that change at high speed
be able to. In addition, high-speed channel up / down mode
The video of the channel selected before entering the mode is displayed on the current screen.
The image of the channel with the displayed channel number is incorrect.
Can be prevented from being unlocked, improving usability.
I do.

At the same time as the current channel number,
Current channel number among the channel numbers
When displaying multiple channel numbers adjacent to a number together
In both cases, multiple channels adjacent to the current channel number
Which channel number is the current channel number.
If you configure the system to display the information
The relationship between the current channel number and the channel numbers before and after
As a result, channel selection becomes easier. In the simultaneous display of multiple items,
Next, select the channel while checking the channel number to shift to in advance.
Channel numbers at high speed.
Will not pass through the desired channel,
Channel number up / down display and channel selection at high speed
Achieve compatibility with ease.

[Brief description of the drawings]

FIG. 1 is a diagram showing a block configuration of an embodiment.

FIG. 2 is a diagram showing a flowchart for explaining the operation of the embodiment.

FIG. 3 is a diagram showing a subroutine of a slow channel up process.

FIG. 4 is a diagram showing a subroutine of a slow channel down process.

FIG. 5 is a diagram showing a subroutine of a first channel up process.

FIG. 6 is a diagram showing a subroutine of a first channel down process.

FIG. 7 is a diagram showing a subroutine of a channel up / down key-off process.

FIG. 8 is a diagram showing a block configuration of a conventional example.

FIG. 9 is a diagram showing a flowchart for explaining the operation of the conventional example.

FIG. 10 is a diagram showing an example of displaying a plurality of channel numbers simultaneously.

FIG. 11 is a diagram showing an up-down shift display state of a channel number.

FIG. 12 is a diagram showing a vertical scroll display state of a channel number.

FIG. 13 is a diagram showing a left-right scroll display state of a channel number.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 antenna 2 tuner 3 intermediate frequency amplification circuit 4 video processing circuit 5 CRT 9 EEPROM 20 channel selection control device 26 key input unit 27 remote control light receiving unit 28 remote control 31 remote control code analysis unit 32 key code analysis unit 33 slow channel up / down unit 34 First channel up / down section 35 Tuning section 36 OSD processing section (screen display processing section) 37 Timer

Continuation of front page (56) References JP-A-3-268509 (JP, A) JP-A-1-180111 (JP, A) JP-A-60-235592 (JP, A) JP-A-63-111777 (JP, A) , A) JP-A-5-29881 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H04N 5/38-5/46 H03J 5/00 H03J 7/18-7/32

Claims (4)

(57) [Claims] 1. A according to a channel up / down key operation, a channel up / down unit for setting a preset in the current channel number the channel number of the channel is sequentially raised or lowered and the channel up / down is supplied data set Ji <br/>Yan'neru number by parts, the channel selection control unit for causing the tuner tuning to at the set channel number, the set from the channel up / down portion In a low-speed channel up / down mode, the television receiver is provided with a screen display processing unit for supplying the data of the set channel number and displaying the set channel number on the screen.
The tuner section is operated by operating the control section.
Channels with channel numbers are sequentially selected,
The channel set by the screen display processing unit
The number is controlled to be displayed on the screen. In the high-speed channel up / down mode, the tuning control is performed.
The control section is made inoperative, and tuning in the tuner section is performed.
The screen is stopped and the setting is performed by the screen display processing unit.
Control to display the specified channel number on the screen.
A television receiver characterized by comprising a control means . 2. The channel up / down key is operated by the channel up / down key.
To increase the channel number within the specified number of channels.
Or, if lowered, the slow channel up
/ Down mode and the channel up / down key
Channel exceeds the specified number of channels.
If you increase or decrease the channel number,
That it is configured to be in channel up / down mode
The television receiver according to claim 1, wherein: 3. The high-speed channel up / down mode.
In the above, it was configured to mute the video displayed on the screen
3. The method according to claim 1, wherein
Television receiver. 4. The method according to claim 1, wherein the screen display processing section performs the setting.
The same as the current channel number
At the beginning of the preset channel number
Multiple channel numbers adjacent to the current channel number
And the current channel number.
Which of the channel numbers of the
Display information indicating current channel number
4. The method according to claim 1, wherein
3. The television receiver according to item 1.