JPH11225301A - Display form selection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the display form selection device with a smaller number of operation buttons that selects a display form with a simple operation so as to enhance the operability in the case of selecting a display mode. SOLUTION: An operation button that instructs, e.g. automatic display changeover, is provided as an information entry means. When the button is depressed one time, an automatic changeover operation is started and when some display forms are switched and the operation button is depressed again, the automatic changeover is stopped and a video image is displayed by the display form depending on the stopped point of time. In the case that all display forms are selected without 2nd depression of the operation button during the automatic changeover, the automatic changeover is stopped, the display form is restored before start of automatic display changeover and then the video image is displayed. Since the display form is automatically switched sequentially by the of the one operation button, the operability of the display form changeover is considerably enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a display apparatus for displaying at least one video signal in a plurality of display formats (hereinafter referred to as display modes). The present invention relates to a display format selection device that improves operability when selecting.

[0002]

2. Description of the Related Art NT in a television signal standard system
In the SC (National Television System Committee) system, the aspect ratio of a television screen is set to 4: 3, as is well known. On the other hand, an aspect ratio of 16:
Nine television systems have been standardized. Also, an EDT using a conventional terrestrial wave having the same aspect ratio of 16: 9 as that of the HDTV system in parallel with the EDT.
Standardization of the V2 system is also progressing. Furthermore, at present, a television receiver called a wide aspect television receiver (abbreviation, wide television) conscious of a landscape screen having an aspect ratio of 16: 9 has begun to spread to ordinary households, and the types of broadcasting services have increased. ing.

Therefore, in addition to the normal one-screen display on one television receiver, a function to simultaneously display two or more broadcast programs and different images from input video equipment on a multi-screen at the same time is provided. Things are increasing. Not only two display modes, but also display modes having more display modes have appeared.

FIG. 26 shows an example of a display mode of a wide-screen television. Display mode 1 in FIG. 26A is an example of a normal one-screen display. Display mode 2 in FIG. 26 (b)
Is the same size for both the main screen and the sub screen, and the aspect ratio
This is an example of a two-screen display that displays 4: 3 video, in which black strip-shaped non-image portions are present at the top and bottom to maintain the roundness. FIG.
In the display mode 3 of (c), an image having an aspect ratio of 4: 3 is displayed on the main screen portion to fill the entire screen, and an aspect ratio of 4: 3 is displayed on the sub-screen portion.
3 is an example of a four-screen display in which the child screens of the video of FIG. In the display mode 4 of FIG. 26D, the main screen is the same display as that of FIG.
It is an example of the display mode of 13 screen display in which the screen was arranged.

[0005] In order for a viewer to select and view a desired display mode from the above display modes, for example, FIG.
As shown in FIG. 7, a remote control transmitter provided with four display selection buttons corresponding to the display modes 1 to 4 shown in FIGS. 26 (a) to 26 (d) is used. The viewer operates these display mode selection buttons to switch the display mode of the wide-screen television.

However, in a conventional wide-screen television,
When switching the display mode in which images are displayed on a landscape screen, the viewer must operate multiple buttons on the remote control transmitter to switch the display mode, which complicates operation and deteriorates operability. there were. And when the display mode further increases, it is necessary to add a display selection button corresponding to the display mode to the remote control transmitter,
Further, the operation becomes complicated, and the operability deteriorates.

[0007]

As described above, in the conventional wide-screen television, when switching the display mode for displaying an image on a landscape screen, the viewer operates a plurality of buttons of the remote control transmitter to change the display mode. There is a problem that the operation has to be switched, which complicates the operation and deteriorates the operability.

Therefore, the present invention provides a display format selection device which can reduce the number of buttons to be operated and can be switched by a simple operation, and can improve operability when selecting a display mode. The purpose is to do so.

[0009]

According to the first aspect of the present invention, a display format selection apparatus according to the first aspect of the present invention receives at least one video signal, converts it into a plurality of different display formats, and displays it. Display format conversion means, control means for controlling the display format conversion means so as to perform a sequential switching operation for automatically switching the plurality of display formats, and controlling automatic switching operation of the control means. Information input means for inputting information for performing (N) +1 (N) times (N
When the information of ≧ 0 (integer) is input, the automatic switching operation is performed. When the (2N + 2) th (N ≧ 0 and integer) information is input, the automatic switching operation is stopped. It is a feature.

According to the first invention, for example, an operation button for instructing automatic display switching is provided as information input means, and when this button is pressed once, the automatic switching operation starts, and when several display formats are switched, If the operation button is pressed again, the automatic switching is stopped, and the image is displayed in the display format at the time of the stop. Since the display format is automatically switched sequentially with only one operation button, the operability of switching the display format can be greatly improved.

A display format selection apparatus according to a second aspect of the present invention, as described in claim 5, is a display format capable of inputting at least one video signal, converting the video signal into a plurality of different display formats, and displaying it. Conversion means, control means for controlling the display format conversion means to perform first and second sequential switching operations for automatically sequentially switching the plurality of display formats, and control for automatic switching operation of the control means Information input means for inputting information for performing (2N + 1) -th time (N ≧
When the information of (0 and an integer) is input, the first automatic switching operation is performed. When the (2N + 2) -th (N ≧ 0 and integer) information is input, the first automatic switching operation is performed. Is stopped, and when (2N + 1) -th (N ≧ 0 and integer) continuous information is input to the information input means,
The second automatic switching operation is performed, and when the input of the continuous information is interrupted, the second automatic switching operation is stopped.

According to the second aspect of the present invention, by combining the first and second aspects of the invention, the operation method of one information input unit, for example, an automatic display switching button is changed (single information is changed). Input or continuous information), a first automatic switching operation (for example, an automatic switching operation in which each display time of the sequential display is T0) and a second automatic switching operation (for example, a sequential Either operation method of the display time T1 (high-speed automatic switching operation in which T1 <T0) can be selected.

According to a third aspect of the present invention, there is provided a display control apparatus according to the sixth aspect, wherein at least one video signal is input and converted into a plurality of different display formats and displayed. Means, control means for controlling the display format conversion means so as to perform first and second sequential switching operations for automatically sequentially switching the plurality of display formats, and controlling automatic switching operation of the control means. And first and second information input means for inputting respective information for inputting the information, wherein the control means inputs (2N + 1) th (N ≧ 0 and an integer) information to the first information input means. When the first automatic switching operation is performed, the first automatic switching operation is performed.
If the (2N + 1) -th (N ≧ 0 and an integer) information is input to the second information input means during the automatic switching operation, the second automatic switching operation is performed, and the second automatic switching operation is performed.
When the (2N + 2) th information (N ≧ 0 and an integer) is input to the information input means, the first automatic switching operation is performed, and the (2N + 2) th (N ≧ 2) information is input to the first information input means. When information of (0 and an integer) is input, the first and second automatic switching operations are stopped.

According to the third invention, in addition to the first automatic switching operation according to the first invention, a second automatic switching operation (for example, a reverse automatic switching operation) is made possible. In addition to the first information input means (for example, an automatic display switching button) for performing the first automatic switching, the second information for performing the second automatic switching is also provided.
Is provided by operating the second information input means during a period in which the first automatic switching operation is being performed by operating the first information input means. The automatic switching operation can be switched to the second automatic switching operation. Therefore,
For example, when automatic display switching is sequentially performed in the forward direction by the first information input unit, the automatic switching is sequentially performed by changing the automatic display switching direction to, for example, the reverse direction by the second information input unit. be able to. In other words, the display format can be reversed and the display format can be sequentially reversed and displayed.

According to a fourth aspect of the present invention, there is provided a display control device which converts at least one video signal into a plurality of different display formats for display. Means, control means for controlling the display format conversion means so as to perform a sequential switching operation for automatically sequentially switching the plurality of display formats, and information for controlling the automatic switching operation of the control means. The control means includes first and second information input means, and the first information input means has a (2N + 1) -th (N ≧
When information of (0 and an integer) is input, the automatic switching operation is performed, and (2N + 2) is input to the first information input means.
When the information of the second time (N ≧ 0 and an integer) is input, the automatic switching operation is stopped. When the information is input to the second information input unit after the automatic switching operation is stopped, The display format is switched to a display format before the automatic switching operation is started.

According to the fourth invention, in addition to the first information input means (for example, an automatic display switching button) for performing the automatic switching according to the first invention, the display format before the automatic switching operation is started is returned. The second information input means (for example, a previous display mode switching button) is provided, an automatic switching operation is performed by operating the first information input means, and several display modes are displayed, and the first information input means is again activated. After stopping the automatic switching operation by the operation, the second
By operating the information input means, it is possible to return to the display format before the start of the automatic switching operation.

According to a fifth aspect of the present invention, a display control device receives a plurality of video signals,
It is possible to convert and display a plurality of different display formats, and to perform a display format conversion means having a display format for displaying a small screen and a sequential switching operation for automatically sequentially switching the plurality of display formats. Control means for controlling the display format conversion means, information input means for inputting information for controlling the automatic switching operation of the control means,
Selecting means for inputting a first audio signal corresponding to the main screen and a second audio signal corresponding to the child screen, and selecting one of these audio signals under the control of the control means; The control means includes (2N + 1) in the information input means.
When the information of the second time (N ≧ 0 and an integer) is input, the automatic switching operation is performed. When the information of the (2N + 2) th (N ≧ 0 and an integer) is input, the automatic switching operation is stopped. When the display mode is in the automatic switching operation and has the sub-screen, the selection means selects the second audio signal, and the automatic switching operation is stopped or the automatic switching operation is in progress and the sub-screen is displayed. When the display format is not set, the selection means is made to select the first audio signal.

According to the fifth aspect, during the period in which the information input means, for example, the automatic display switching button is performing the automatic switching operation, when the display format is the mode having the sub-screen, the sound corresponds to the sub-screen. The second audio signal (for example, the audio signal of the receiving channel displayed on the small screen) is selected, and the other period (that is, the automatic switching operation is stopped or the automatic switching operation is being performed, but the small screen is If the display format is not to be used), the first audio signal corresponding to the main screen (for example, the audio signal of the reception channel displayed on the main screen) is selected. This makes it possible to hear the sound of the child screen when there is a child screen during automatic display switching. When there are a plurality of child screens during automatic display switching, the second audio signal corresponding to each reception channel of the child screen is selected.

[0019]

Embodiments of the present invention will be described with reference to the drawings. (First Embodiment) FIG. 1 is a diagram showing a display mode switching operation flow in a display format selection apparatus according to a first embodiment of the present invention. FIG. 2 is a block diagram showing a display format selection device according to the first embodiment of the present invention. The configuration of the embodiment in FIG. 2 shows a configuration for enabling display of a main screen portion and a sub-screen portion (also called a sub-screen portion) on a horizontally long screen of a wide-screen television. The present invention is applied not only to the embodiment described above, but also to the embodiments after the second embodiment.

First, FIG. 2 will be described. Input terminal 10
The RF signal from the broadcasting station input to 0 is input to the tuner 101 for the main screen and the tuner 111 for the sub-screen.

First, the circuit on the main screen side will be described. The tuner 101 for the main screen switches the receiving channel based on the channel select signal (hereinafter referred to as CS1 signal) output from the microprocessor 121 and detects the RF signal. The output from the tuner 101 is input to the video processing circuit 103 and the synchronization processing circuit 104 of the main screen signal processing circuit 102.

The main screen signal processing circuit 102 includes a tuner 101
Is decoded, the image size is changed according to the display mode, and the image is displayed on the main screen of the landscape display screen.

The main screen signal processing circuit 102 is a video processing circuit
103, synchronization processing circuit 104, horizontal / vertical compression processing circuit
105.

The video processing circuit 103 performs video signal processing such as Y / C separation processing and color signal processing, and decodes a television signal output from the tuner 101.

The synchronization processing circuit 104 performs horizontal synchronization separation processing,
A vertical synchronization signal separation process and the like are performed, and a separated synchronization signal such as a horizontal synchronization signal and a vertical synchronization signal and a clock phase-synchronized with the synchronization signal are output.

The horizontal / vertical compression processing circuit 105 performs processing for compressing the video signal decoded by the video processing circuit 103 in the horizontal and vertical directions, and outputs it to the synthesis processing circuit 122.
The compression processing by the horizontal / vertical compression processing circuit 105 is performed by a compression ratio control signal (hereinafter, referred to as “compression rate control signal”)
AA signal) controls the horizontal and vertical compression ratios according to each display mode. For example, in the display mode 1 of FIG. 26A, the output of the video processing circuit 103 is supplied to the synthesis processing circuit 122 as it is without performing the compression processing of the main screen portion. In the display mode 2 shown in FIG. 26B and the display mode shown in FIG. 26D, the image is compressed by 1/2 times in the horizontal direction and by 2/3 times in the vertical direction.
In the display mode 3 shown in FIG. 26C, compression is not performed in the vertical direction, but is performed 3/4 times in the horizontal direction. At this time, the display position of the video to be displayed on the main screen is within a predetermined range according to the compression ratio on the left side of the screen.

Next, the circuit on the sub-screen side will be described. The sub-screen tuner 111 switches the receiving channel based on the channel select signal (hereinafter referred to as CS2 signal) output from the microprocessor 121 and detects the RF signal. The output from the tuner 111 is input to the video processing circuit 113 and the synchronization processing circuit 114 of the sub-screen signal processing circuit 112.

The sub-screen signal processing circuit 112 includes a tuner 111
Is decoded, the image size is changed according to the display mode, and the image is displayed on the sub-screen portion of the landscape display screen.

The sub-screen signal processing circuit 112 is a video processing circuit.
113, a synchronization processing circuit 114, a memory 116, and a memory control circuit 118.

The video processing circuit 113, like the video processing circuit 103, performs video signal processing such as Y / C separation processing and color signal processing, and decodes a television signal output from the tuner 111. The video signal decoded by the video processing circuit 113 is input to the A / D conversion circuit 115.

Similar to the synchronization processing circuit 104, the synchronization processing circuit 114 performs horizontal synchronization separation processing, vertical synchronization signal separation processing, and the like, and separates synchronization signals such as a horizontal synchronization signal and a vertical synchronization signal, and the synchronization signal. Outputs a phase-synchronized clock. The synchronization signal output from the synchronization processing circuit 114 is input to the memory control circuit 118.

The memory control circuit 118 generates a write control signal and a read control signal for the memory 116 based on the synchronization signal and the clock from the synchronization processing circuits 104 and 114, which will be described in detail later.

The A / D conversion circuit 115 includes a synchronization processing circuit 114
The video signal output from the video processing circuit 113 is converted from analog to digital in accordance with the clock output from.

The memory 116 receives an A / D conversion circuit 115 based on a clock output from the synchronization processing circuit 114 and a write control signal output from the memory control circuit 118.
Of the digital video signal from the CPU. Memory 11
When writing a digital video signal to 6, the write control signal controls the write data amount,
Performs digital video signal compression processing. Also, memory 11
6 reads the compressed digital video signal based on the clock output from the synchronization processing circuit 104 and the read control signal output from the memory control circuit 118, and sets the display position of the video to be displayed on the sub-screen unit. Control is performed so as to be arranged at a predetermined position on the right side of the screen.

The D / A conversion circuit 117 includes a synchronization processing circuit 104
The compressed digital video signal output from the memory 116 is subjected to digital-to-analog conversion in accordance with the clock output from.

The memory control circuit 118 receives a synchronization signal and a clock output from the synchronization processing circuit 114 and a small-screen compression ratio control signal (hereinafter, referred to as a WC signal) output from the microprocessor 121 to send a signal to the memory 116. A write control signal for controlling the writing of the video signal is output. The write control signal is controlled by the WC signal so that the image size is displayed on the sub-screen portion of each display mode.
The data amount of the digital video signal written to the memory 116 is changed. The memory control circuit 118 outputs and stops a write control signal according to a write start / stop signal (hereinafter, referred to as a WE signal) output from the microprocessor 121, and controls writing of a video signal to the memory 116. . Further, read control for controlling data reading from the memory 116 is performed based on a synchronization signal and a clock output from the synchronization processing circuit 104 and a sub-screen display position control signal (hereinafter, referred to as an RC signal) output from the microprocessor 121. Output a signal. The read control signal is changed by the RC signal so as to be at the image display position on the sub-screen portion corresponding to each display mode.

The synthesis processing circuit 122 synthesizes the main screen video signal output from the horizontal / vertical compression processing circuit 105 and the sub-screen video signal output from the D / A conversion circuit 117 into one image. The synthesizing processing circuit 122 is
A timing signal indicating the area of the main screen section and the area of the sub-screen section is generated from the synchronization signal output from. This timing signal is generated based on a switching timing control signal (hereinafter, referred to as an AB signal) output from the microprocessor 121, and controls the main screen area and the sub screen area in a display mode. By switching the main screen video signal and the sub-screen video signal by this timing signal, it is possible to synthesize one image.

The output of the synthesis processing circuit 122 is output from the video output circuit 12
The amplified signal is supplied to a cathode ray tube (hereinafter, referred to as CRT) 124 and displayed on a landscape screen.

The remote control transmitter 120 is provided with an automatic display switching button 201 for starting / stopping the automatic display mode operation as shown in FIG. 3, for example. When the viewer presses the automatic display switching button 201, an instruction signal AMC is transmitted to the microprocessor 121. The viewer can switch all display modes only with the automatic display switching button 201.

The microprocessor 121 starts and stops a mode for automatically switching the display mode (hereinafter referred to as an automatic display mode) according to the instruction signal AMC.

With the above configuration, the main screen signal processing circuit 102,
The sub-screen signal processing circuit 112, the synthesizing processing circuit 122, the video output circuit 123, and the CRT 124 include a display format conversion means capable of receiving at least one video signal, converting the video signal into a plurality of different display modes, and displaying the converted signal. Make up. The microprocessor 121 constitutes control means for controlling the display format conversion means so as to perform a sequential switching operation of automatically switching the plurality of display formats. Automatic display switching button 201 on remote control transmitter 120
Constitutes first information input means for inputting information for controlling the automatic switching operation of the control means.

In the television receiver configured as described above,
The RF signal transmitted from the broadcasting station is transmitted to two tuners 101,
The video signal detected by one tuner 101 is placed on the main screen of the landscape screen using the other tuner 111.
Is displayed on the sub-screen portion of the landscape screen. As in the conventional example, there are four display modes: display mode 1 in FIG. 26A to display mode 4 in FIG. 26D. In the present invention, when the viewer wants to switch the display mode, a mode for automatically switching the display mode (automatic display mode) is provided. The display mode can be fixed and projected on a landscape screen. The processing for realizing such an automatic display mode according to the present invention can be performed only by the control of the microprocessor 121.

Thus, in the present invention, it is possible to solve the problem that a complicated operation is required in the remote control transmitter 120 to switch a plurality of display modes as described in the conventional example, and the operability is deteriorated. it can.

FIG. 1 shows a flow of the operation of the remote control transmitter 120 and the switching operation of the display mode by the automatic display mode. Here, as in the conventional example, there are four types of display modes from display mode 1 in FIG. 26 (a) to display mode 4 in FIG. 26 (d), and from display mode 1 in FIG. 26 (a) to FIG. 26 (c). An example in the case of switching to the display mode 3 will be described.
FIG. 6 shows a state change of the screen displayed on the CRT 124 in this example of the display mode switching.

Hereinafter, FIG. 1 will be described with reference to FIGS. 2, 3 and 6. First, when the power of the television receiver is turned on, the state becomes the initial display mode (step 301), and the process proceeds to the next (step 302). Here, this initial display mode is set to display mode 1, and the CRT 124 is shown in FIG.
Image is displayed. In (Step 302), the process waits until the viewer presses the automatic display switching button 201 of the remote control transmitter 120 in FIG. Therefore, the display mode 1 is maintained until the automatic display switching button 201 is pressed.

Here, the viewer is provided with an automatic display switching button.
When the user presses 201, the process proceeds to (Step 303), and the display mode is switched from the display mode 1 in FIG. 6A to the display mode 2 in FIG.
Start operation in automatic display mode. Next (step 304
) To determine whether or not the automatic display switching button has been pressed again during the automatic display mode. Since the target display mode is the display mode 3, the viewer does not yet press the automatic display switching button here. Therefore, the process proceeds to the next (step 305).

At (step 305), it is determined whether or not the display time of the current display mode has reached a predetermined time T0 second. If it is within the predetermined time T0 seconds, the process returns to (Step 304) and repeats (Step 304) and (Step 305).
Here, after the state of the display mode 2 is displayed for a predetermined time T0 seconds, the process proceeds to (Step 306). (Step 306)
It is determined whether or not all display modes have been switched. Specifically, the number of display mode switchings after the start of the automatic display switching operation is counted, and it is determined whether or not the number has been equal to the number of all display modes. Here, since all display modes have not yet been switched, (Step 30
Return to 3).

Similarly, in (step 303), the display mode is switched to the next display mode, and the display mode is switched to the desired display mode 3 in FIG. 6 (c), and the process proceeds to (step 304). At this time, the viewer presses the automatic display switching button again (step 302).
) To stop the automatic display mode. (Step 302
6), the display mode 3 is maintained as shown in FIG. 6D until the viewer presses the automatic display switching button 201 again.

In this way, the display modes are automatically switched in sequence, and when the viewer enters the desired display mode, pressing the automatic display switching button again stops the display mode. Switch.

Next, there is no display mode that the viewer prefers.
An operation for automatically stopping the automatic display mode when the automatic display switching button 201 is not pressed during the operation of the automatic display mode will be described with reference to FIG. FIG. 7 shows a state change of the screen displayed on the CRT 124 in this example.

As described above, the viewer presses the automatic display switching button 201 to start the automatic display mode operation, and the display mode 1 of FIG. 7A to the display mode of FIG.
To display mode 2. After that (Step 303)
(Step 306) is repeated to switch from the display mode 2 in FIG. 7B to the display mode 3 in FIG. 7C, and from the display mode 3 in FIG. 7C to the display mode 4 in FIG. 7D. . FIG.
After switching to the display mode 4 of (d), a certain time T0
After the seconds are displayed, the process proceeds to (Step 306).

In (step 306), the display mode 1
Since all 4 display modes have been switched,
307). In (step 307), the display mode is switched to the display mode at the start of the automatic display mode, the display mode is switched to the display mode 1 in FIG. 7E, and the process returns to (step 302) again to stop the automatic display mode. That is, the automatic display mode is not restarted until the automatic display switching button is pressed again.

Thus, when the automatic display switching button 201 is not pressed during the operation of the automatic display mode, the display mode returns to the display mode before the start of the automatic display mode and the automatic display mode is stopped.

FIGS. 4 and 5 show the procedure of the control operation of the microprocessor 121 in the first embodiment. Next, the operation of the microprocessor 121 according to the first embodiment will be described with reference to FIGS. 2 and 3 using FIGS. Here, the display mode 1 to the display mode 3 of FIG.
Will be described.

When the viewer presses the automatic display switching button 201 of the remote control transmitter 120 shown in FIG.
Transmits an instruction signal AMC = 1 to the microprocessor 121. When the automatic display switching button 201 is not pressed, the microprocessor 121 determines that the instruction signal AMC = 0.

First, in FIG. 4 (step 601), the microprocessor 121 is initialized when the power of the television receiver is turned on. Here, display mode MODE = 0, automatic display mode AMODE = 0, display mode switching number CNT =
Initialize to 0. In this example, when the display mode is 1, the MO
DE = 0, MODE = 1 in display mode 2, MODE = 2 in display mode 3, MODE in display mode 4
= 3. When AMODE = 0, there is no automatic display mode, and when AMODE = 1, there is an automatic display mode.

Next, proceeding to (Step 602), the viewer selects the automatic display switching button 201 of the remote control transmitter 120 shown in FIG.
Is pressed, the instruction signal AMC = 1 is output to the microprocessor 12
Sent to 1 (step 603). Next (step 604
Then, the microprocessor 121 determines whether the current display mode is the automatic display mode or not. AM at the moment
Since ODE = 0, the process proceeds to (Step 605), and AMOD
Set E = 1 and start the automatic display mode operation.

Next, proceeding to (Step 606), the MODE is counted up so as to be in the display mode 2, and MODE is counted.
= 1. CNT also counts up similarly, and C
NT = 1. Next, the process proceeds to (Step 607), and the MOD
It is determined whether E has reached the maximum number M of display modes. In this example, since there are four types of display modes, display modes 1 to 4, M = 4. Since MODE = 1 at present, the process proceeds to the next (step 609). When the number of display modes has reached M = 4, the display mode is initialized to MODE = 0 (step 608) as described with reference to FIG. 7, and then the process proceeds to (step 609).

In (Step 609), (Step 610)
, The compression ratio value AA [MODE] is read for each display mode. The data maps AA0, AA1,... Indicate the compression ratio values of the display modes 1, 2,. This is horizontal
It is output from the microprocessor 121 as an AA signal for controlling the compression ratio of the vertical compression processing circuit 105. In the next (step 611), from (step 612), for each display mode,
Boundary position value AB [M between the main screen area and the sub screen area
ODE] is read. Data maps AB0, AB1, ...
Indicate the boundary position values of the display modes 1, 2,. This is output from the microprocessor 121 as an AB signal for controlling a timing signal indicating the area of the main screen section and the area of the sub-screen section of the synthesis processing circuit 122.

In this way, control is performed so as to process the video signal on the main screen corresponding to each display mode.

In FIG. 5 (step 614), it is determined whether the current display mode is the display mode 1 (MODE = 0). In the case of display mode 1, there is no need to control the next sub-screen unit (steps 615 to 623).
Proceed to). If the display mode is any of the other display modes 2 to 4, the process proceeds to (step 615) to control the tuner 111 and the sub-screen signal processing circuit 112. At this time, since MODE = 1, the process proceeds to step 615. At (step 615), the compression ratio value WC [MODE] of the screen size to be displayed on the sub-screen unit is read from (step 616) according to each display mode. The data maps WC1, WC2,... Indicate the compression ratio values in the display modes 2, 3,. This is output from the microprocessor 121 as a WC signal for controlling the write control signal output from the memory control circuit 118. In the next (step 617), similarly to (step 615), the display phase position value RC [MODE] of the sub-screen is read from (step 618) according to each display mode. The data maps RC1, RC2,... Indicate the display phase position values of the display modes 2, 3,. This is output from the microprocessor 121 as an RC signal for controlling the memory control circuit 118.

In FIG. 5 (step 619), the number D of channel switching is initialized (D = 1), and (step 620).
Proceed to). (Step 620), (Step 621)
From the channel number or the frequency value C of each channel
S2 [D] is read and the microprocessor 121 outputs a CS2 signal for controlling the receiving channel of the tuner 111.
Output from Each of the data maps CH1, CH2,... Indicates a channel number.

In the next step (step 622), a WE signal for controlling the write control signal output from the memory control circuit 118 is generated and output from the microprocessor 121. At (step 623), the number of child screens N [MODE] for each display mode is read from (step 624) and D
= N [MODE] is determined. Data maps N1, N2,... Indicate the number of child screens in display modes 2, 3,. In this example, (Step 624
) Becomes N1 = 1, N2 = 3, N3 = 12. At this time, since MODE = 1, N [1] = 1 and D = 1
Holds, the process proceeds to the next step (step 613). In (step 613), it is determined whether or not the display mode switching number CNT has reached the maximum display mode number M. At this time, since CNT = 1, the flow returns to (Step 602).

As described above, when the viewer presses the automatic display switching button 201 of the remote control transmitter 120 shown in FIG. 3, the automatic display mode is set, and the display mode is changed from the display mode 1 shown in FIG.
The display mode is automatically switched to the display mode 2 in (b).

Here, the viewer has not yet pressed the automatic display switching button 201, and proceeds from (step 602) to (step 627) in FIG. 4, and an instruction signal from the remote control transmitter 120 indicating the start and stop of the automatic display mode. It is determined that AMC = 0.

In the next (step 628), it is determined whether or not the current display mode is the automatic display mode (AMODE = 1). Since AM0DE = 1 at this time, the next (step
Proceed to 629). At (step 629), it is determined whether or not the display time has reached a predetermined time T0. If the display time has not reached the predetermined time T0, the operation proceeds to (Step 630), and if the display time has reached the predetermined time T0, the operation proceeds to (Step 606). It is assumed that the display time has not reached the predetermined time T0 at this time, and the process proceeds to (Step 630) in FIG.

In (step 630) of FIG. 5, it is determined whether or not the display mode is 1 (MODE = 0). If MODE = 0, the process returns to (Step 602) of FIG. 4, and if the display mode is any other display mode, the process proceeds to (Step 619) of FIG. At this time, since MODE = 1, the process proceeds to (step 619) again, and steps 619 to 613 are repeated to store a new video signal in the memory.
Write to 116.

As described above, the predetermined time T0 elapses,
The current display mode is maintained until the next display mode is switched, and the video signal displayed on the sub-screen is updated.

At this time, since the display mode is the second display mode, the viewer does not press the automatic display switching button 201 and the display mode 2 is displayed for a predetermined time T0.
To (step 606). At step 606, MODE and CNT are counted up again. At present M
ODE = 2, CNT = 2, and the process of switching to the display mode 3 is started. Thereafter, the display mode 2 described above is used.
The process similar to that described above is continued, and the process proceeds from (Step 606) in FIG. 4 to (Step 623) in FIG.

In FIG. 5 (step 623), since the display mode is 3 (MODE = 2), N [2] = 3, and the process proceeds to (step 625), where the number D of channel switching is counted up. At the moment, D = 2. In the next (step 626), the WE signal is stopped, and the writing of the video signal to the memory 116 is stopped.

Returning to (Step 620) again, CS2
[2] = CH2 is read, and this is output as a CS2 signal. Thus, the receiving channel of the tuner 111 is switched. Proceed again (step 622),
In order to write the video signal to be displayed on the second sub-screen in the memory 116, a WE signal is output from the microprocessor 121, and the process proceeds to (Step 623). Up, D = 3. In (step 626), the WE signal is stopped, and the writing of the video signal to the memory 116 is stopped. Then, the process returns to (Step 620).

In this way (steps 620) to (step 626), the tour is performed in accordance with the number of child screens to be displayed on the sub-screen portion. Then, by sequentially switching the CS2 signal in accordance with the number of child screens, the receiving channel of the tuner 111 is switched, and the WE signal is output so that the video signal is sequentially written to the memory 116.

At this time, since MODE = 2, N [MOD
E] = 3, and after the video signals to be displayed on the child screens for three screens have been written into the memory 116, the process proceeds to (step 613) via (step 623). At this time, the display mode switching number CNT = 2, and therefore, (step 613) in FIG.
Then, the process returns to (Step 602) of FIG.

(Step 602) → (Steps 627 to 630)
) → display mode 2 (steps 619 to 613)
As in the case of the state, the operation is repeated until the automatic display switching button 201 is pressed or until a predetermined time T0 is reached.

Here, the viewer selects the automatic display switching button.
When 201 is pressed again, (Step 602) to (Step 604)
Proceed to). Since AMODE = 1 at this time, the process proceeds to (Step 631), where AMODE = 0 and CNT = 0 are initialized, the automatic display mode is stopped, and the process returns to (Step 602).

Thereafter, the automatic display switching button 201
(Step 602) → (Step 627) →
(Step 628) → (Step 630) → (Step 602)
) Is repeated, the automatic display mode is stopped, and the current display mode 3 (MODE = 2) is maintained.

As described above, when the viewer presses the automatic display switching button 201, the display mode is automatically switched sequentially, and when the automatic display switching button 201 is pressed again,
The microprocessor 121 can control to stop in the display mode at that time. Therefore, the viewer can switch to the desired display mode only by pressing the automatic display switching button 201 twice.

Next, the control operation of the microprocessor 121 for automatically stopping the automatic display mode when the automatic display switching button 201 is not pressed during the automatic display mode operation will be described.

By the control operation described above, the display mode 1 (MODE = 0) in FIG. 7A is changed to the display mode 2 in FIG. 7B.
(MODE = 1) → Display mode 3 (MODE
= 2) → display mode 4 (M0DE = 3) shown in FIG. At the same time, the mode switching number CNT is also sequentially counted up.
The display mode is switched to the display mode 4, and after a predetermined time T0 has elapsed at (step 629) in FIG.
ODE and CNT are counted up, MODE = 4, C
NT = 4.

In the next (step 607), MODE = M
Since (M = 4) holds, the process proceeds to (Step 608).
In (step 608), since there is no mode in which MODE = 4, the display mode is set to display mode 1 (MODE = 4).
0) is corrected. MODE = 4 at present
Therefore, it is corrected to MODE = 0. Next (Step 60
9) In (step 611), display mode 1 (MODE =
0) to output the AA signal and the AB signal. In the next FIG. 5 (step 614), since MODE = 0, the process proceeds to (step 613). In (step 613), since the mode switching number CNT has reached the maximum number M of display modes (M = 4), the process proceeds to (step 631) in FIG.
Initialize to 0, CNT = 0, and automatically stop the automatic display mode.

As described above, when the automatic display switching button 201 is not pressed during the automatic display mode operation and all display modes are switched, the automatic display mode is automatically stopped. At that time, the display mode returns to the display mode when the viewer first pressed the automatic display switching button 201.

According to the operation flow of the microprocessor 121 in FIGS. 4 and 5, even if the automatic display mode is started in the display modes 2 to 4 other than this example, (step 613)
), It is determined whether the display mode switching number CNT is 4 (= M) or not, so that the display mode returns to the display mode when the viewer first presses the automatic display switching button 201 as described above. ing.

When the automatic display mode is automatically stopped, the MOD is set between (step 613) and (step 631) so as to return to the initial display mode, for example, display mode 1.
It is of course possible to switch to a specific display mode by adding a process of setting E = 0.

In the present embodiment, the remote control transmitter 12
Although the automatic display switching button 201 is provided at 0, it is of course possible to provide the automatic display switching button 201 on the television receiver body.

In the present embodiment, the four types of display modes shown in FIG. 7 (the modes described with reference to FIG. 26) have been described as examples. However, the present invention is not limited to this example. It is of course possible to switch the display mode by performing the automatic display mode operation. For example, an enlarged display mode for enlarging and displaying a video portion of a letterbox format video signal as shown in FIG. 8 (a) as shown in FIG. 8 (b) or a letterbox format video signal as shown in FIG. 9 (a) A display mode such as a subtitle moving display mode in which the subtitle of the black belt portion is moved to the enlarged video portion as shown in FIG. 9B is also conceivable. Of course, it is of course possible to sequentially switch the display mode from display mode 1 in FIG. 6 (a) to enlarged display mode in FIG. 8 (b) to subtitle movement display mode in FIG. 9 (b).

In this embodiment, the horizontal / vertical compression processing of the video signal is performed by the horizontal / vertical compression processing circuit 105. The vertical compression processing is performed by the vertical deflection processing of the television receiver. Of course, it is possible to realize by changing the angle.

As described above, in the television receiver configured as shown in FIG. 2, the microprocessor 121 performs the control operation as shown in FIGS. 4 and 5 to automatically display the image. The mode can be switched, and a desired display mode can be selected with a small number of operation buttons.

In the first embodiment described above, the means for realizing the automatic display mode for automatically switching the display mode has been described.
It may be time-consuming to switch the display mode. Therefore, in the following second embodiment, the time required for switching the display mode is further reduced.

In the first embodiment, for example, FIG.
In the display mode in which a plurality of sub-screens are displayed on the sub-screen portion as in display mode 3 of FIG. 26 and display mode 4 of FIG. 26 (d), the image of each sub-screen displays video signals of different reception channels. I was The same applies to the automatic display mode operation. Therefore, the processing of (step 620) to (step 626) of FIG.
111 reception channel switching and WE signal generation /
Stopping was repeated. Thus, there is a problem that it takes time to switch the automatic display mode.

(Second Embodiment) Next, a second embodiment will be described with reference to FIGS.
In the second embodiment, during the automatic display mode operation, FIG. 11A shows the display mode 3 and FIG.
As shown in FIG. 1 (b), it is assumed that the reception channel displayed on each sub-screen is the same. Thus, there is no need to perform the process of switching the receiving channel of the tuner 111, and the time required for switching the display mode can be reduced. Also, a series of these processes can be realized only by the control process of the microprocessor 121 as in the first embodiment.

Next, the operation of the microprocessor 121 will be described with reference to FIGS.

FIG. 10 shows a flow of the operation of the remote control transmitter 120 and the switching operation of the display mode by the automatic display mode. Here, as in the conventional example, there are four types of display modes from display mode 1 in FIG. 26A to display mode 4 in FIG. 26D, and as in the first embodiment described above, FIG.
An example of switching from the display mode 1 in (a) to the display mode 3 in FIG. 26 (c) will be described. FIG. 12 shows a change in the state of the screen displayed on the CRT 124 in this example of switching the display mode.

FIG. 2, FIG. 3, and FIG.
This will be described with reference to FIG. First, when the power of the television receiver is turned on, the state becomes the initial display mode (step 301), and the process proceeds to the next (step 302). Here, this initial display mode is set to display mode 1, and the CRT 124 is shown in FIG.
The image of 2 (a) is displayed. In (step 302), the process waits until the viewer presses the automatic display switching button 201 of the remote control transmitter 120 in FIG. Therefore, the display mode 1 is maintained until the automatic display switching button 201 is pressed.

Here, the viewer is provided with an automatic display switching button.
When the user presses 201, the process proceeds to (Step 303), where the display mode is switched from the display mode 1 in FIG. 12A to the display mode 2 in FIG. 12B, and the operation in the automatic display mode is started. Next, it is determined whether or not there is a sub-screen in the switched display mode 2 (step 311). If the display mode has one or more sub-screens (step 312), the process proceeds to step 312, where all sub-screens are set to the same channel. (Step 304). If it is determined in step 311 that the display mode 1 has no child screen, the flow directly proceeds to step 304. At (step 304), it is determined whether or not the automatic display switching button has been pressed again during the automatic display mode. Since the target display mode is the display mode 3, the viewer does not yet press the automatic display switching button here. Therefore, the process proceeds to the next (step 305).

At (step 305), it is determined whether or not the display time of the current display mode has reached a predetermined time T0 second. If it is within the predetermined time T0 seconds, the process returns to (Step 304) and repeats (Step 304) and (Step 305).
Here, after the state of the display mode 2 is displayed for a predetermined time T0 seconds, the process proceeds to (Step 306). (Step 306)
It is determined whether or not all display modes have been switched. Since we have not yet switched to all display modes here,
Return to (Step 303).

Similarly, the display mode is switched to the next display mode in (step 303), and the display mode is switched to the target display mode 3 in FIG. 12 (c). In step (311 and 312), the video of the same channel is displayed on all the sub-screens. Is displayed, and the flow proceeds to (Step 304). At this time, if the viewer presses the automatic display switching button again, the automatic display mode is stopped and then (step 31).
At 3 and 314), as shown in FIG. 12 (d), images of different channels are displayed on all the sub-screens, and the process returns to (Step 302). In (Step 302), the state of the display mode 3 is maintained as shown in FIG. 12D until the viewer presses the automatic display switching button 201 again.

In this manner, the display modes are automatically switched in sequence, and when the viewer enters the desired display mode, the display mode is stopped by pressing the automatic display switching button again, and the display mode is stopped. Switch. Moreover, during the automatic display mode operation, if there is a sub-screen in the display mode that is sequentially switched, the video of the same channel is displayed on each sub-screen, and it is not necessary to switch channels for a plurality of sub-screens. The time required for switching the display mode can be reduced.

Next, there is no display mode that the viewer prefers.
If the automatic display switching button 201 is not pressed during the automatic display mode operation, the display image on the CRT 124 accompanying the operation for automatically stopping the automatic display mode is shown in FIG.
Only the display state of the display mode 4 of FIG. 11B is inserted between the respective display states of FIG. 2C and FIG. 12D.

As described above, the viewer presses the automatic display switching button 201 to start the automatic display mode operation, and switches from the display mode 1 in FIG. 12 (a) to the display mode 2 in FIG. 12 (b). . Thereafter, (Step 303) to (Step 306) are repeated, and the display mode 2 of FIG. 12B is changed to the display mode 3 of FIG. 12C, and the display mode 3 of FIG. 12C is changed to the display mode of FIG. To display mode 4. FIG.
After switching to the display mode 4 in (b), a certain time T0
After the seconds are displayed, the process proceeds to (Step 306).

In (Step 306), the display mode 1
Since all 4 display modes have been switched,
307). In (Step 307), the display mode is switched to the display mode at the start of the automatic display mode, and again (Step 302).
Return to and stop the automatic display mode.

As described above, when the automatic display switching button 201 is not pressed during the operation of the automatic display mode, the display mode returns to the display mode at the start of the automatic display mode and the automatic display mode is stopped.

As described above, in the second embodiment, during the automatic display mode operation, the reception channel of the tuner 111 is fixed, and a plurality of sub-screens such as the display mode 3 and the display mode 4 are provided. When the display mode is
The microprocessor 121 controls so that the video of the same channel is displayed on each sub-screen. As a result, “the switching of the receiving channel of the tuner 111 and the memory 116
By repeating the writing / stopping operation to the display mode, it takes time to switch the display mode during the automatic display mode operation ", which can be solved in the first embodiment.

(Third Embodiment) Next, a third embodiment will be described with reference to FIGS. Third, as in the second embodiment, the time required to switch the display is reduced in the third embodiment. Third
In the embodiment, the display time after the display mode is switched during the automatic display mode operation is shorter than that in the first embodiment, so that the display mode is quickly switched to the display mode preferred by the viewer (hereinafter, the high-speed automatic display mode). ). The operation is also performed only with the automatic display switching button 201 of the remote control transmitter 120 of FIG. 3 of the first embodiment. Also, a series of these processes can be realized only by the control process of the microprocessor 121 as in the first embodiment.

The control operation of the microprocessor 121 according to the third embodiment will be described with reference to FIGS.

FIG. 13 shows the flow of the operation of the remote control transmitter 120 and the switching operation of the display mode by the automatic display mode. Here, as in the conventional example, there are four types of display modes, display mode 1 in FIG. 26A to display mode 4 in FIG. 26D, and as in the first and second embodiments described above,
An example of switching from the display mode 1 in FIG. 26A to the display mode 3 in FIG. 26C will be described. FIG. 14 shows a change in the state of the screen displayed on the CRT 124 in this example of switching the display mode.

FIG. 2, FIG. 3, and FIG.
4 will be described. First, when the power of the television receiver is turned on, the state becomes the initial display mode (step 301), and the process proceeds to the next (step 302). Here, this initial display mode is set to display mode 1, and the CRT 124 is shown in FIG.
4 (a) is displayed. In (step 302), the process waits until the viewer presses the automatic display switching button 201 of the remote control transmitter 120 in FIG. Therefore, the display mode 1 is maintained until the automatic display switching button 201 is pressed.

[0107] Here, the viewer selects the automatic display switching button.
When 201 is pressed, the flow proceeds to (Step 303). At this time, the button 201 is kept pressed. (Step 303) in FIG.
The display mode is switched from the display mode 1 in (a) to the display mode 2 in FIG. 14 (b), and the operation in the high-speed automatic display mode is started. Next, the process proceeds to (step 321), where it is determined whether or not the finger has been released from the automatic display switching button during the high-speed automatic display mode.
Since the target display mode is the display mode 3, the viewer does not release his finger from the automatic display switching button yet. Therefore, the process proceeds to the next (step 322).

In step 322, it is determined whether or not the display time of the current display mode has reached a predetermined time T1 seconds (where T1 <T0). If it is within the predetermined time T1 seconds, the process returns to (step 321), and (step 321) and (step 322) are repeated. Here, after the state of the display mode 2 is displayed for a predetermined time T1 seconds, the process proceeds to (Step 306).
In (step 306), it is determined whether or not all display modes have been switched. Here, since all display modes have not been switched yet, the process returns to (Step 303).

Similarly, in (step 303), the display mode is switched to the next display mode, and the display mode is switched to the target display mode 3 in FIG. 14 (c), and the process proceeds to (step 321). At this time, the viewer lifts his / her finger from the automatic display switching button and
Return to 302) to stop the high-speed automatic display mode. (Step 302) In the viewer, the automatic display switching button 201 is again pressed.
Until is pressed, the state of the display mode 3 is maintained as shown in FIG.

In this way, the display modes are automatically switched in sequence, and when the viewer switches to the desired display mode, when the user releases his / her finger from the automatic display switching button, the display mode is stopped and the display is stopped. Switch the mode.

Next, there is no viewer's favorite display mode.
The operation for automatically stopping the automatic display mode when the finger is not released from the automatic display switching button 201 during the automatic display mode operation will be described.

As described above, the viewer presses the automatic display switching button 201 to start the high-speed automatic display mode operation, and switches from the display mode 1 to the display mode 2 as in FIG.
Switch to After that, (Step 303) ~ (Step 30
6) is repeated to switch from the display mode 2 to the display mode 3 and from the display mode 3 to the display mode 4. After switching to display mode 4, after displaying for a certain time T1 seconds,
Proceed to (Step 306).

In (Step 306), the display mode 1
Since the display mode has been switched to all four,
307). In (Step 307), the display mode is switched to the display mode at the start of the automatic display mode, the display mode is switched to 1, and the process returns to (Step 302) to stop the high-speed automatic display mode. After stopping high-speed automatic display mode, press button 201
The mode stop state continues even if the finger is released from. That is, the high-speed automatic display mode is not restarted until the automatic display switching button is pressed again.

Thus, when the finger is not released from the automatic display switching button 201 during the operation of the high-speed automatic display mode, the display mode returns to the display mode at the start of the high-speed automatic display mode, and the automatic display mode is stopped.

As described above, after the display mode is switched to the display mode 2 in FIG. 14B, until the fixed time T1 elapses, the display image of the sub-screen is continuously updated as in the first embodiment. . Since T0> T1, the display time in the display mode 2 in FIG. 14B is shorter than that in the first embodiment. When the viewer keeps pressing the automatic display switching button 201, the display mode is automatically switched sequentially in the same manner as in the first embodiment, and the display time is reduced to the display time T1 shorter than the display time T0 of the first embodiment. By doing so, the time required to switch the display mode can be reduced. Then, when the viewer releases his / her finger from the automatic display switching button 201 when the display mode is the preferred display mode,
It operates so as to stop in the display mode at that time, and can switch the display mode.

It is of course possible to combine the second embodiment and the third embodiment to further reduce the time required for switching the display mode. For example,
In the second embodiment, it is of course possible to display the image of the same channel on a plurality of child screens only during the high-speed automatic display mode operation.

(Fourth Embodiment) Next, a fourth embodiment will be described with reference to FIG. The fourth embodiment shows an embodiment in which the first embodiment and the third embodiment are combined. The configurations of the display format selection device and the remote control transmitter are the same as those in FIGS.
In FIG. 15, between (Step 303) and (Step 304) in the first embodiment of FIG.
3) is inserted, and it is determined whether or not the automatic display switching button is kept pressed. If it is still pressed,
As in the third embodiment (step 321),
(Step 322) Each step is executed.

That is, when the automatic display switching button 201 is pressed, the automatic display mode is started, and the switching of the display mode 1 → display mode 2, display mode 2 → display mode 3 is automatically performed at intervals of the time T0. When the automatic display switching button 201 is pressed again, the display is stopped at the display mode at that time, while, when the automatic display switching button 201 is pressed and held down, the high-speed automatic display mode starts,
By continuously pressing the button 201, the display mode 1 → display mode 2, display mode 2 → display mode 3 is automatically switched at intervals of time T1 (T1 <T0).
When the finger is released from the automatic display switching button 201, the display can be stopped in the display mode at that time. Other operations are the same as those in the first embodiment and the third embodiment, and a description thereof will not be repeated.

(Fifth Embodiment) Next, a fifth embodiment will be described with reference to FIGS. In the fifth embodiment, a mode for changing the order of switching the display mode during the automatic display mode (hereinafter, referred to as a reverse automatic display mode) is added. For example, when the display mode 1 → display mode 2 → display mode 3 → display mode 4 is switched and the viewer operates the remote control transmitter,
The order in which the display modes are switched is switched so that display mode 4 → display mode 3 → display mode 2 → display mode 1.

As shown in FIG. 17, the remote control transmitter 120 shown in FIG. 3 according to the first embodiment is provided with a reverse direction switch button 1201 as a second information input means, and the viewer operates this button. I do. The viewer can use this reverse switch button 1201
Pressing switches the display mode in the reverse order from the display mode at that time. In addition, these series of processing,
As in the first embodiment, it can be realized only by the control processing of the microprocessor 121.

FIG. 16 shows a flow of the operation of the remote control transmitter 120 and the switching operation of the display mode by the automatic display mode. Here, the display mode 1 shown in FIG.
A case where the display mode is switched to the display mode 4 of FIG. 26 (d), the display mode is switched from the display mode 4 of FIG. 26 (d) to the display mode 3 of FIG. 26 (c), and the display mode is switched will be described. FIG. 18 shows a change in the state of the display screen displayed on the CRT 124 in this example.

FIG. 16 will be described below with reference to FIGS. 2, 17 and 18. First, when the power of the television receiver is turned on, the state becomes the initial display mode (step 301), and the process proceeds to the next (step 302). Here, the initial display mode is the display mode 1, and the image of FIG. 18A is displayed on the CRT 124. In (Step 302), the process waits until the viewer presses the automatic display switching button 201 of the remote control transmitter 120 in FIG. Therefore, the display mode 1 is maintained until the automatic display switching button 201 is pressed.

Here, when the viewer selects the automatic display switching button
When the user presses 201, the process proceeds to (step 303), where the display mode is switched from the display mode 1 in FIG. 18A to the display mode 2 in FIG. 18B, and the operation in the automatic display mode is started. Then (step
331), and determines whether or not the reverse direction switch button 1201 has been pressed during the automatic display mode. If the button 1201 has not been pressed, the process proceeds to (step 304), and it is determined whether or not the automatic display switching button has been pressed again during the automatic display mode. The viewer has not yet pressed the automatic display switching button here. Therefore, the process proceeds to the next (step 305).

At (step 305), it is determined whether or not the display time of the current display mode has reached a predetermined time T0 second. If it is within the predetermined time T0 seconds, the process returns to (Step 304) and repeats (Step 304) and (Step 305).
Here, after the state of the display mode 2 is displayed for a predetermined time T0 seconds, the process proceeds to (Step 306). (Step 306)
It is determined whether or not all display modes have been switched. Since we have not yet switched to all display modes here,
Return to (Step 303).

Similarly, the display mode is switched to the next display mode in (Step 303), the display mode is switched to the display mode 3 in FIG. 18C, and the process proceeds to (Step 304) through (Step 331). Thereafter, the display mode is switched to the display mode 4 shown in FIG. 18 (d) by the steps (step 305), (step 306) and (step 303) in the same manner as described above. When the automatic display switching button is pressed again in (Step 304), the process returns to (Step 302) and stops the automatic display mode. In step (331), when the viewer presses the reverse direction switching button, the process proceeds to (step 332) to start the reverse automatic display mode. At this time, the display mode is switched from the display mode 4 to the display mode 3 in FIG. 18 (e), and proceeds to (step 333). In (step 333), it is determined whether or not the reverse direction switching button has been pressed. When the reverse direction switching button is pressed, the reverse order automatic display mode is released, and the flow returns to the automatic display mode (step 303) again. If the reverse direction switching button is pressed in (step 333), the process proceeds to (step 334). At (step 334), it is determined whether or not the automatic display switching button has been pressed. If you press the automatic display switching button here,
Returning to (Step 302), the reverse order automatic display mode is stopped. At (step 302), the display mode 3 is maintained as shown in FIG. 18 (f) until the viewer presses the automatic display switching button 201 again.

As described above, the display modes are automatically switched in sequence, and when a certain display mode is set, pressing the reverse direction switching button switches the display mode switching in the reverse direction. Then, when a certain display mode is entered, if the automatic display switching button is pressed again, the display mode is stopped and the display mode is switched.

In this manner, when the viewer or the backward display switching button 1201 is pressed during the automatic display mode operation,
The display mode can be switched from the display mode at that time in the reverse direction of the first embodiment.

Next, an operation for automatically stopping the automatic display mode and the reverse automatic display mode when the automatic display switching button 201 is not pressed during the operation of the reverse automatic display mode will be described. FIG. 19 shows a state change of the display screen displayed on the CRT 124 in this example. As in the example shown in FIG. 18, the display mode 1 shown in FIG.
The case where the display mode is switched to the display mode 4 of FIG. 6D and the reverse display switching mode is started from the display mode 4 of FIG. 26D will be described.

If the automatic display switching button is not pressed in (step 334), the process proceeds to (step 335).
In (step 335), (steps 333) to (step 335) are repeated until the predetermined time T0 seconds or more elapse after the display mode is switched in the reverse direction in (step 332). When the display time reaches T0, the process proceeds to (step 336), and it is determined whether or not the current display mode is the mode at the start of the automatic display mode. In (Step 336), if the mode is not the mode at the start of the automatic display mode, the flow returns to (Step 332), and the display mode is switched in the reverse direction to be the display mode 2.
(Steps 332) to (step 336) are executed until the display mode becomes the display mode 1, and if it is determined in (step 336) that the display mode has become the display mode (step 302).
To stop the reverse automatic display mode.

In this way, when the reverse direction switch button 1201 and the automatic display switch button 201 are not pressed during the operation of the reverse order automatic display mode, the display mode returns to the display mode at the start of the automatic display mode and stops the automatic display mode. It is.

As described above, when the viewer returns to the display mode at the time of pressing the automatic display switching button 201 during the operation of the reverse automatic display mode, the reverse automatic display mode and the automatic display mode are stopped and the viewing is stopped. It can be controlled to switch to the display mode when the user presses the automatic display switching button 201.

As described above, when the viewer presses the reverse display switching button 1201 during the automatic display mode operation by the microprocessor 121, the display mode at that time is switched from the display mode in the reverse direction to the first embodiment. The display mode can be controlled to be automatically and sequentially switched.

As in the third embodiment, it is of course possible to perform the reverse automatic display mode operation only while the automatic display switching button 201 is kept pressed.

By the way, in the first embodiment shown in FIG.
After the viewer operates the remote control transmitter 120 of FIG. 3 to activate the automatic display mode and switch the display to the target display mode, in order to return to the original display mode before the automatic display mode started, It was necessary to operate the automatic display mode again to switch to all display modes.

(Sixth Embodiment) Next, a sixth embodiment will be described with reference to FIGS. In the sixth embodiment, when the automatic display mode is started, the current display mode is stored, the display mode is switched, and the automatic display mode operation is stopped by switching to the target display mode. When the user wants to return to the display mode before the start of the display mode, the user can perform the operation with a simple operation.

The operation is performed, for example, by adding a previous display mode switching button 1701 as a second information input means to the remote control transmitter 120 of FIG. 3 of the first embodiment as shown in FIG.
After the automatic display mode is stopped, the viewer simply presses the previous display mode switching button 1701. A series of these processes can be realized only by the control process of the microprocessor 121 as in the first embodiment.

FIG. 20 shows a flow of the operation of the remote control transmitter 120 and the switching operation of the display mode by the automatic display mode. Here, similar to the above-described first embodiment,
The case where the automatic display mode is operated, the display mode is switched from the display mode 1 to the display mode 3, and then the display mode 1 is returned will be described. FIG. 22 shows a state change of the screen displayed on the CRT 124 in this example.

Hereinafter, FIG. 20 will be described with reference to FIGS. 2, 21 and 22. FIG. First, when the power of the television receiver is turned on, the state becomes the initial display mode (step 301), and the process proceeds to the next (step 302). Here, the initial display mode is set to the display mode 1, and the image shown in FIG. 22A is displayed on the CRT 124. In (step 302), the process waits until the viewer presses the automatic display switching button 201 of the remote control transmitter 120 shown in FIG. Therefore, the display mode 1 is maintained until the automatic display switching button 201 is pressed.

[0139] Here, the viewer selects the automatic display switching button.
When 201 is pressed, the display mode 1 which is the current display mode is stored in (step 341), and then the process proceeds to (step 303), where the display mode 1 in FIG. And the operation of the automatic display mode is started. Next, the process proceeds to (step 304), where it is determined whether or not the automatic display switching button 201 has been pressed again during the automatic display mode. Since the target display mode is display mode 3,
The viewer does not yet press the automatic display switching button 201 here. Therefore, the process proceeds to the next (step 305).

In (Step 305), it is determined whether or not the display time of the current display mode has reached a predetermined time T0 second. If it is within the predetermined time T0 seconds, the process returns to (Step 304) and repeats (Step 304) and (Step 305).
Here, after the state of the display mode 2 is displayed for a predetermined time T0 seconds, the process proceeds to (Step 306). (Step 306)
It is determined whether or not all display modes have been switched. Since we have not yet switched to all display modes here,
Return to (Step 303).

Similarly, the display mode is switched to the next display mode in (step 303), and the display mode is switched to the target display mode 3 in FIG. 22 (c), and the flow proceeds to (step 304). At this time, the viewer presses the automatic display switching button 201 again to stop the automatic display mode, and returns to (Step 302). If the automatic display switching button 201 is not pressed after the stop of the automatic display mode, the process proceeds from (Step 302) to (Step 342).
At (step 342), it is determined whether or not the previous display mode switching button has been pressed. If the previous display mode switching button 1701 is not pressed, the process returns to (Step 302), and FIG.
The state of the display mode 3 is maintained as shown in FIG. Here, (step 342), that is, when the previous display mode switching button 1701 is pressed in the display mode 3 (step 343)
Proceed to). In step 343, the display mode stored in step 341 is read out, and the display mode is switched to the display mode before the start of the automatic display mode, that is, the display mode 1 in FIG.

As described above, the automatic display switching button
When 201 is pressed, the current display mode is memorized and the display mode is automatically switched in sequence.When the viewer enters the desired display mode, pressing the automatic display switching button again will switch to that display mode. Stop and switch the display mode. After that, when the previous display mode switching button 1701 is pressed, the display mode can be switched back to the display mode before the automatic display mode was started.

As described above, when the automatic display mode is started, the current display mode is stored, and after the automatic display mode operation is stopped, the viewer switches the previous display mode switching button 1701.
By simply pressing, the display mode can be switched back to the display mode before the start of the automatic display mode.

(Seventh Embodiment) Next, a seventh embodiment will be described with reference to FIGS.
FIG. 24 is a configuration diagram according to the seventh embodiment. FIG.
2 shows a configuration diagram of an audio signal processing system according to the present embodiment, which is added to FIG. 1 of the first embodiment. The video signal processing system is the same as in FIG.

Outputs from the main screen side tuner 101 and the sub screen side tuner 111 in FIG. 1 described in the first embodiment are:
Input is made to two input terminals of a selector 2201 as selection means. The microprocessor 121 includes a selector 22 in addition to the various control signals of FIG. 1 described in the first embodiment.
A selection signal SSEL for selecting one of the two signals input to 01 is generated and supplied to the selector 2201.

When the selection signal SSEL from the microprocessor 121 is 0 (SSEL = 0), the selector 2201 outputs the first signal from the tuner 101 and the selection signal SSEL becomes 1
When (SSEL = 1), the second signal from the tuner 111 is selected and supplied to the audio processing circuit 2202.

The audio processing circuit 2202 decodes an audio signal from the output of the selector 2201, and outputs the signal from the speaker 2203.

In the seventh embodiment, while the viewer operates the remote control transmitter 120 of FIG. 3 to operate the automatic display mode, a plurality of images such as those in the display modes 2 to 4 are displayed. In the display mode, the selection signal SSEL is set to 1
(SSEL = 1), and as the sound, the sound of the receiving channel displayed on the sub-screen unit (small screen unit) can be selected.

FIG. 23 shows a flow of the operation of the remote control transmitter 120 and the switching operation of the display mode by the automatic display mode. Here, as in the conventional example, there are four types of display modes from display mode 1 in FIG. 26 (a) to display mode 4 in FIG. 26 (d), and from display mode 1 in FIG. 26 (a) to FIG.
An example in the case of switching to the display mode 3 will be described.

FIG. 23, FIG. 3, and FIG.
4 will be described. First, when the power of the television receiver is turned on, the state becomes the initial display mode (step 301), and the process proceeds to the next (step 302). Here, the initial display mode is the display mode 1, and the image of the display mode 1 is displayed on the CRT 124. In (Step 302), the process waits until the viewer presses the automatic display switching button 201 of the remote control transmitter 120 in FIG. Therefore, the display mode 1 is maintained until the automatic display switching button 201 is pressed.

Here, the viewer is provided with an automatic display switching button.
When 201 is pressed, the process proceeds to (Step 303) and the display mode 1
Is switched to the display mode 2 and the operation in the automatic display mode is started. Next, the process proceeds to (step 351), where it is determined whether or not there is a child screen in the current display mode. If there is no sub-screen in the display mode (step 352), the first audio signal of the main screen is selected. Since the current display mode is the display mode 2, the process proceeds to (step 353) and the sub-screen is displayed. Select a second audio signal. Next, proceed to (Step 304), and again in the automatic display mode, the automatic display switching button.
Determine whether 201 has been pressed. If the automatic display switching button 201 is pressed, the automatic display mode is stopped and the display mode is switched to the display mode 2 (step 354).
Selects the first audio signal on the main screen. However, since the intended display mode is the display mode 3, the viewer does not yet press the automatic display switching button here. Therefore, the process proceeds to the next (step 305).

At (step 305), it is determined whether or not the display time of the current display mode has reached a predetermined time T0 second. If it is within the predetermined time T0 seconds, the process returns to (Step 304) and repeats (Step 304) and (Step 305).
Here, after the state of the display mode 2 is displayed for a predetermined time T0 seconds, the process proceeds to (Step 306). (Step 306)
It is determined whether or not all display modes have been switched. Since we have not yet switched to all display modes here,
Return to (Step 303).

Similarly, in (step 303), the display mode is switched to the next display mode, and the display mode is switched to the target display mode 3.
Proceed to (Step 351). Since there is a small screen in the display mode 3 (step 353), the second audio signal of the receiving channel of the small screen is selected, and the process proceeds to (step 304). At this time, the viewer presses the automatic display switching button again,
Returning to (Step 302), the automatic display mode is stopped and switched to the display mode 3, and at the same time (Step 354), the first audio signal of the reception channel of the main screen is selected. (Step 302) In the viewer again the automatic display switching button
The display mode 3 is maintained until 201 is pressed.

In this manner, the display modes are automatically switched in sequence, and if a small screen is provided during the switching of the display mode, the audio signal of the small screen is output, and the viewer can switch to the desired display mode. Then, when the automatic display switching button is pressed again, the display is stopped in the display mode, and the display mode is switched, and at the same time, the audio signal of the main screen is output.

FIG. 25 shows the flow of the control operation of the microprocessor 121. The control of the selection signal SSEL is performed based on the automatic display mode AMODE and the display mode MODE of FIGS. 4 and 5 of the first embodiment.

(Step 2301) In automatic display mode AM
It is determined whether 0DE = 1. If the automatic display mode operation is stopped (AMODE = 0), (Step 2304)
To SSEL = 0.

Therefore, while the automatic display mode is stopped, the selector 2201 selects the output of the tuner 101, and the sound of the reception channel displayed on the main screen is output from the speaker 2203.

If AMODE = 1 (step 2302)
And the current display mode is changed to the display mode 1 (MODE =
0) is determined. If MODE = 0, the process proceeds to (Step 2304), and the other display modes (MODE =
If it is 1-3), the process proceeds to (Step 2303). Proceeding to (Step 2303), SSEL = 1 is set, and the selector 2201 selects the output of the tuner 111.

Therefore, during the automatic display mode operation, in the case of a display format having a sub-screen (child screen) such as the display modes 2 to 4, the sound of the reception channel displayed on the sub-screen portion is output from the speaker 2203. You. Display mode 3,
In the mode in which a plurality of child screens are displayed on the sub-screen unit as in FIG. 4, the receiving channel is switched by the CS2 signal in FIG. The output audio is also switched.

[0160]

As described above, according to the present invention, the number of buttons to be operated can be reduced, and the display format can be sequentially switched by a simple operation. The display format desired by the viewer can be easily selected from a plurality of display formats, and the operability at the time of selecting the display format can be greatly improved.

[Brief description of the drawings]

FIG. 1 shows a first example of a display format selection device according to the present invention.
The figure which shows the operation | movement flow of embodiment.

FIG. 2 is a block diagram showing a display format selection device according to the present invention.

FIG. 3 is an external view of a remote control transmitter according to the first embodiment.

FIG. 4 is a diagram showing a flow of a control operation of the microprocessor according to the first embodiment.

FIG. 5 is a diagram illustrating a flow of a control operation of the microprocessor according to the first embodiment.

FIG. 6 is a view showing an example of a display image according to the first embodiment.

FIG. 7 is a view showing a display image example according to the first embodiment;

FIG. 8 is a diagram showing an example of a display image in another display format.

FIG. 9 is a view showing an example of a display image in another display format.

FIG. 10 is a view showing an operation flow of the second embodiment in the display format selection device according to the present invention.

FIG. 11 is a diagram illustrating an example of a display image according to the second embodiment.

FIG. 12 is a diagram illustrating an example of a display image according to the second embodiment.

FIG. 13 is a diagram showing an operation flow of the third embodiment in the display format selection device according to the present invention.

FIG. 14 is a diagram illustrating an example of a display image according to the third embodiment.

FIG. 15 is a diagram showing an operation flow of a fourth embodiment in the display format selection device according to the present invention.

FIG. 16 is a diagram showing an operation flow of the fifth embodiment in the display format selection device according to the present invention.

FIG. 17 is an external view of a remote control transmitter according to a fifth embodiment.

FIG. 18 is a diagram illustrating a display image example according to the fifth embodiment.

FIG. 19 is a diagram showing a display image example according to the fifth embodiment.

FIG. 20 is a diagram showing an operation flow of a sixth embodiment in the display format selection device according to the present invention.

FIG. 21 is an external view of a remote control transmitter according to a sixth embodiment.

FIG. 22 is a diagram illustrating a display image example according to the sixth embodiment.

FIG. 23 is a view showing an operation flow of a seventh embodiment in the display format selection device according to the present invention.

FIG. 24 is a block diagram of an audio processing system according to a seventh embodiment.

FIG. 25 is a view showing a flow of a control operation of the microprocessor in the seventh embodiment.

FIG. 26 is a view showing a display image example for explaining a conventional display format selection device.

FIG. 27 is an external view of a remote control transmitter in a conventional example.

[Explanation of symbols]

101, 111: Tuner, 102: Main screen signal processing circuit, 11
2… Sub-screen signal processing circuit, 103, 113… Video processing circuit,
104, 114: Synchronous processing circuit, 105: Horizontal / vertical compression processing circuit, 115: D / A conversion circuit, 116: Memory, 117: D
/ A conversion circuit, 118 ... memory control circuit, 120 ...
Remote controller transmitter, 121: microprocessor (control means), 122: synthesis processing circuit, 123: video output circuit, 124
... CRT, 201 ... automatic display switching button (first information input means), 1201 ... reverse direction switching button (second information input means), 1701 ... previous display mode switching button (second information input means)
Information input means), 2201 ... selector (selection means), 2202
... Sound processing circuit, 2203 ... Speaker, 102, 112, 117,
122, 123, and 124 ... display format conversion means.

Claims (10)

[Claims] 1. A display format conversion means capable of inputting at least one video signal, converting the display format into a plurality of different display formats, and displaying the converted display format, and sequentially switching the plurality of display formats automatically. Control means for controlling the display format conversion means so as to perform, and information input means for inputting information for controlling an automatic switching operation of the control means, wherein the control means includes: When the (2N + 1) -th (N ≧ 0 and integer) information is input, the automatic switching operation is performed. When the (2N + 2) -th (N ≧ 0 and integer) information is input, the automatic switching operation is performed. A display format selection device which stops operation. 2. The automatic switching operation is stopped when the (2N + 2) -th information is not input to the information input means and all of the plurality of display formats are switched. The display format selection device according to claim 1. 3. The display format conversion unit has a display format for inputting a plurality of video signals and displaying a plurality of sub-screens simultaneously. The control unit controls the plurality of video images during the automatic switching operation. 2. The method according to claim 1, wherein one of the signals is simultaneously displayed on the plurality of child screens, and after the automatic switching operation is stopped, the plurality of video signals are respectively displayed on the plurality of child screens. Display format selection device as described. 4. The control means performs the automatic switching operation when continuous information is input to the information input means, and stops the automatic switching operation when the continuous information is interrupted. 2. The display format selection device according to claim 1, wherein 5. A display format conversion means capable of inputting at least one video signal, converting the display format into a plurality of different display formats and displaying the plurality of display formats, and automatically switching the plurality of display formats in sequence. Control means for controlling the display format conversion means so as to perform the sequential switching operation of No. 2; and information input means for inputting information for controlling the automatic switching operation of the control means, wherein the control means (2N + 1) -th time (N ≧ 0 and an integer) in the information input means
When the information is input, the first automatic switching operation is performed. When the (2N + 2) th (N ≧ 0 and an integer) information is input, the first automatic switching operation is stopped. (2N + 1) times (N ≧ 0 and an integer) in the information input means
Wherein the second automatic switching operation is performed when the continuous information is input, and the second automatic switching operation is stopped when the continuous information is interrupted. Selection device. 6. A display format conversion means capable of inputting at least one video signal, converting the display format into a plurality of different display formats, and displaying the plurality of display formats; Control means for controlling the display format conversion means so as to perform the two sequential switching operations, and first and second inputs of respective information for controlling the first and second automatic switching operations of the control means. A second information input unit, wherein the control unit is configured to perform the first automatic switching when (2N + 1) -th (N ≧ 0 and an integer) information is input to the first information input unit. When the (2N + 1) -th (N ≧ 0 and integer) information is input to the second information input means during the first automatic switching operation, the second automatic switching operation is performed. Perform the second information input If the information of the stage (2N + 2) th (integer N ≧ 0) is input, performs the first automatic switching operation, the the first information input means (2N +
2) When the information of the first time (N ≧ 0 and an integer) is input,
A display format selection device for stopping the first and second automatic switching operations. 7. The method according to claim 1, wherein the (2N + 2) -th information is not input to the first information input means during the first automatic switching operation, and all of the plurality of display formats are switched. 7. The display format selection device according to claim 6, wherein said first automatic switching operation is stopped. 8. The display at the start of the first automatic switching operation when the (2N + 2) -th information is not input to the first information inputting unit during the second automatic switching operation. When switching to the format, the first and second
7. The display format selection device according to claim 6, wherein the automatic switching operation is stopped. 9. A display format conversion means capable of inputting at least one video signal, converting the display format into a plurality of different display formats, and displaying the converted display format, and sequentially switching the plurality of display formats automatically. Control means for controlling the display format conversion means so as to perform, and first and second information input means for inputting information for controlling an automatic switching operation of the control means, wherein the control means When the (2N + 1) -th (N ≧ 0 and an integer) information is input to the first information input means, the automatic switching operation is performed, and the (2N + 2) -th (N) is input to the first information input means. If information of ≧ 0 (integer) is input, the automatic switching operation is stopped. If information is input to the second information input unit after the automatic switching operation is stopped, the automatic switching operation is stopped. Display format selection device and switches to start before the display format. 10. A display format conversion means capable of inputting a plurality of video signals, converting the plurality of video signals into a plurality of different display formats, and displaying the converted display format, wherein the display format conversion means has a display format for displaying a small screen. Control means for controlling the display format conversion means so as to perform a sequential switching operation for automatically sequentially switching display formats; information input means for inputting information for controlling the automatic switching operation of the control means; Selecting means for inputting a first audio signal corresponding to the screen and a second audio signal corresponding to the child screen, and selecting one of these audio signals under the control of the control means; The means is (2N + 1) -th (N ≧ 0 and an integer) the information input means.
When the information is input, the automatic switching operation is performed. When the (2N + 2) th (N ≧ 0 and an integer) information is input, the automatic switching operation is stopped. And when the display format has a child screen, the selection means selects the second audio signal. When the automatic switching operation is stopped, or when the display format is in the automatic switching operation and has no child screen, the selection is performed. Display means for selecting the first audio signal.