JPH05336397A - Remote controller and television receiver - Google Patents

Abstract

PURPOSE:To decode a prescribed code by an existing decoder, to reduce a cost, and to perform the remote control of a television receiver by a user with a simple operation. CONSTITUTION:A CPU 13 converts the output of a joy stick 11 into the prescribed code in conformity with a format used in an existing remote controller. A light emitting diode 14a transmits infrared rays modulated based on the prescribed code. The control part of the television receiver controls a graphic display part so as to move a cursor displayed on a cathode ray tube based on a received prescribed code, and also, selects a function where the cursor is located on an operating menu, and controls a video part to a transmission part so as to display a selected function.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device and a television receiver for remotely controlling so-called AV equipment.

[0002]

2. Description of the Related Art In recent years, audio equipment and video equipment (hereinafter referred to as AV equipment) have become multifunctional by adding various functions. For example, in a television receiver that is a representative of video equipment, a so-called picture-in-picture function,
A multi-picture function, a TV scan function, a satellite broadcast receiving function, etc. are added. Further, for example, a video tape recorder (hereinafter referred to as VTR) has a variable speed reproduction function, a still image reproduction function, a recording reservation function, and the like.

On the other hand, in audio equipment, a combination of audio signal source equipment (hereinafter referred to as source equipment), for example, an AM / FM tuner, a record player, a tape recorder, a CD (compact disk) player, a DAT (digital audio tape recorder), etc. is combined. Can be used.

Further, in AV equipment, it is general to use a remote control device (hereinafter referred to as a remote control) to operate (set) each function. By the way, in the multifunctional remote controller for AV equipment (so-called commander) as described above, the number of key switches for operating those functions increases,
If the remote controller itself becomes large or the size is made constant, it is necessary to make each key switch small, which causes a problem that the operability is deteriorated as the function becomes multi-functional. Further, it has been attempted to reduce the number of key switches by assigning a plurality of functions to one key switch, but the operation becomes complicated and the user cannot utilize (use) all the functions. There is a problem.

Therefore, in order to improve the operability, that is, the so-called man-machine interface, for example, the operation contents and operation procedures (hereinafter referred to as an operation menu) corresponding to each function are so-called on the screen of the television receiver. Display the cursor, move the cursor using the remote control,
It is conceivable to select (specify) one item from the operation menu and operate the selected function. In other words, it is possible to operate each function by a so-called interactive method.

Specifically, the remote controller is provided with a so-called pointing device for moving the cursor and a click switch for generating a trigger signal, and the number of pulse signals corresponding to the amount of movement from the pointing device and the click switch are provided. The trigger signal generated by the operation is transmitted from the remote controller, while the television receiver
While displaying the operation menu and cursor corresponding to each function, receiving the pulse signal and trigger signal transmitted from the remote control, and based on these signals, selecting the function to move the cursor to operate and select it. Function to operate.

[0007]

By the way, for example, even when the above-mentioned interactive method is used for channel switching, volume adjustment, etc., without performing an interactive operation such as selecting an operation menu. As with the conventional remote controller, it is more convenient to use the key switch directly.
In other words, when switching channels, raising or lowering (increasing or decreasing) the volume, or switching source devices, etc., a dedicated key switch (hereinafter referred to as a direct function key) for operating them is provided, and operation of these direct function keys is performed. It is more convenient to be able to operate the television receiver with a control command (hereinafter referred to as a control command code). However, when the interactive function is adopted in this way and the operation with the direct function keys is enabled as in the conventional case, the television receiver has a function for decoding the conventional control command code received from the remote controller. Two types of decoders, a decoder and a decoder for decoding the received pulse signal and trigger signal, are required, which causes an increase in cost.

As the pointing device, in addition to the so-called cursor movement keys on the keyboard,
There are various types of so-called mice, joysticks, trackballs, tablets, etc., but in many of these cases, the sense of human operation and the actual amount of cursor movement do not match. For example, a joystick can be tilted freely back and forth and left and right with respect to a so-called neutral position within a range of, for example, about 30 degrees, and when released, it returns to the neutral position and a click switch is generally provided at the tip thereof. is there. Then, based on the direction of the stick on the plane orthogonal to the stick in the neutral position (for example, the vertical axis) (hereinafter referred to as the tilt direction) and the angle between the vertical axis and the stick (hereinafter referred to as the tilt amount), for example, Two voltages are output in the left-right direction and the front-back direction on the plane. Therefore,
There is no problem when the stick can be tilted in the desired tilt direction and tilt amount (strength), but when the stick is tilted with a finger or the like as a practical problem, the intended tilt direction and tilt amount and the actual tilt direction and There is a gap between the amount of tilt and
As a result, there is a problem that it is difficult to move the cursor as desired.

Therefore, in view of the above-mentioned conventional problems, an object of the present invention is to provide a remote control device and a television receiver which are inexpensive and can be easily operated without a sense of discomfort.

[0010]

In order to solve the above problems, the present invention provides a remote control device for remotely controlling a television receiver, in which a cursor displayed on the screen of the television receiver is moved. Pointing means for doing, switch means for generating a trigger signal, code conversion means for converting the output of the pointing means and the trigger signal from the switch means into a predetermined code,
And a transmitting means for transmitting the predetermined code from the code converting means to the television receiver.

Further, according to the present invention, in a remote control device for remotely operating a television receiver, pointing means for moving a cursor displayed on the screen of the television receiver and a trigger signal are generated. Switch means and code conversion means for converting the output of the pointing means into a predetermined code having different data contents in two states of the trigger signal from the switch means and converting the trigger signal from the switch means into a predetermined code. And transmitting means for transmitting the predetermined code from the code converting means to the television receiver.

Further, according to the present invention, in a remote control device for remotely controlling a television receiver, pointing means for moving a cursor displayed on the screen of the television receiver and a trigger signal are generated. Switch means, and code conversion means for converting the output of the pointing means into a predetermined code in a non-linear manner, and converting the trigger signal from the switch means into the predetermined code,
And a transmitting means for transmitting the predetermined code from the code converting means to the television receiver.

According to the present invention, in a television receiver having a plurality of functions, cursor display means for displaying an operation menu and a cursor for the plurality of functions on a screen, the claim 1, claim 2, or claim 1. 3 receives a predetermined code from the remote operation device, moves the cursor displayed by the cursor display means based on the predetermined code, and selects and selects a function of the cursor on the operation menu. And a control unit for controlling the function to operate.

[0014]

In the remote control device according to the present invention, the output of the pointing means and the trigger signal from the switch means are converted into a predetermined code, and the obtained predetermined code is transmitted to the television receiver.

Further, in the remote control device according to the present invention, the output of the pointing means is converted into a predetermined code having different data contents in two states of the trigger signal from the switch means, for example, high level and L level. The trigger signal from the switch means is converted into a predetermined code, and the obtained predetermined code is transmitted to the television receiver.

Further, in the remote control device according to the present invention, the output of the pointing means is converted into a predetermined code in a non-linear manner, and the trigger signal from the switch means is converted into a predetermined code, and the obtained predetermined code is transmitted to the television. Send to the receiver.

Further, in the television receiver according to the present invention, the predetermined code from the remote control device is received, the cursor displayed on the screen is moved based on the predetermined code, and the cursor on the operation menu is moved to the position. Select the function to perform and control the selected function to operate.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a remote control device and a television receiver according to the present invention will be described below with reference to the drawings. 1 is a block diagram showing a circuit configuration of a remote control device to which the present invention is applied, and FIG. 6 is a block diagram showing a circuit configuration of a television receiver to which the present invention is applied.

First, the remote control device will be described. As shown in FIG. 1, the remote control device (hereinafter referred to as a remote control) 10 is a pointing device for moving a cursor displayed on a screen of a television receiver described later, for example, a joystick 11 and a video tape recorder ( A key switch (hereinafter referred to as direct function key) group 12 for switching and selecting video signals from a plurality of video devices such as VTR), and a computer for converting the output of the joystick 11 and the direct function key group 12 into a predetermined code. (Hereinafter referred to as CPU) 13, and a transmission unit 14 that transmits a predetermined code from the CPU 13 by infrared rays, for example.
A power supply unit 15 for supplying electric power to the CPU 13 and the like is provided.

This remote controller (so-called commander) 1
0 converts the output of the joystick 11 and the direct function key group 12 into a predetermined code, for example, a predetermined code conforming to the format used in the conventional remote controller, and infrared rays modulated by this predetermined code are received by the television receiver. It is designed to be sent to.

Specifically, as shown in FIG. 1 described above, the power supply unit 15 has a solar battery 15a, a battery 15b charged by the solar battery 15a, and a current flowing backward to the solar battery 15a. And a three-terminal regulator 15d for converting the voltage of the battery 15b into a required voltage, and after converting the output voltage of the battery 15b into a voltage required by the remote controller 10. Power is supplied to the joystick 11 to the transmitter 14. In addition, in the remote controller 10, as described above, the solar battery 1
By using 5a, so-called energy saving is achieved by effectively utilizing, for example, sunlight, illumination light and the like.

On the other hand, the joystick 11, as shown in FIG. 1 described above, the semi-fixed resistor 11a for generating a voltage V _x corresponding to the inclination in the x direction of the stick, the voltage corresponding to the inclination in the y direction of the stick It consists of a semi-fixed resistor 11b that generates V _y and a click switch 11c that generates a trigger signal.

The joystick 11 can freely tilt the stick forward and backward and to the left and right with respect to the so-called neutral position within a range of, for example, about 30 degrees (hereinafter referred to as maximum tilt angle), and when released, returns to the neutral position. Stick and click switch 11c
Are interlocked with each other, and when the stick is pushed in the axial direction, the click switch 11c is turned on. In the joystick 11, the direction of the stick on the plane orthogonal to the stick in the neutral position (hereinafter referred to as the z axis, for example, the vertical axis) (hereinafter referred to as the tilt direction) and the angle formed by the z axis and the stick (hereinafter referred to as the tilt direction). The two voltages V _x and V _y in the x-direction (for example, the left-right direction) and the y-direction (for example, the front-back direction) orthogonal to each other on the plane are output based on

Specifically, for example, a semi-fixed resistor 11a,
11b outputs a voltage that is proportional to the tilt amount in the x direction and the tilt amount in the y direction, and becomes 0 volt when the tilt amount is 0 degree and 2.5 volt at the maximum tilt angle. When the click switch 11c is turned on, the click switch 11c outputs, for example, a low-level (hereinafter referred to as L-level) trigger signal. Then, the output voltage V _{x of} the semi-fixed resistor 11 a, the output voltage V _y of the semi-fixed resistor 11 b and the trigger signal are supplied to the CPU 13.

The CPU 13 operates, for example, according to the flowchart shown in FIG. 2 so as to convert the output voltages V _x and V _y of the joystick 11 into a predetermined code, for example, a predetermined code based on the format used in the conventional remote controller. Is becoming

That is, in step ST1, CP
The U13 converts the output voltages V _x and V _y of the semi-fixed resistors 11a and 11b into digital signals, respectively, by using a built-in A / D converter, and then proceeds to step ST2.

At step ST2, the CPU 13
Sin θ and cos θ are obtained from the following equations 1 and 2, and the process proceeds to step ST3.

Sin θ = V _y / (V _x ² + V _y ² ) ^1/2 ... Equation 1

Cos θ = V _x / (V _x ² + V _y ² ) ^1/2 ... Equation 2

At step ST3, the CPU 13
Depending on the values of sin θ and cos θ,
For example, it is divided into 16 directions (hereinafter referred to as A direction to P direction) for detection, and the process proceeds to step ST4. Specifically, for example, as shown in Table 1 below, when sin θ is 0.98 to 1.0 and cos θ is −0.2 to 0.2, the A direction (for example, the forward direction) is increased. Inclination is detected and sin θ is -0.2
.About.0.2 and when cos θ is 0.98 to 1.0, it is detected that the tilt is in the E direction (for example, rightward direction), and sin θ
And when cos θ is −0.83 to −0.56, it is detected that it is tilted in the K direction (for example, the left diagonal rearward direction).

[0031]

[Table 1]

At step ST4, the CPU 13
Voltage V _x, based on the inclination direction detected by the V _y and step ST3, the inclination of the stick, to detect belongs to any range # 1 to 48 shown in FIG. 3, for example, the command number corresponding to the range After the determination, go to step ST5.

Specifically, FIG. 3 is a diagram schematically showing the tilt direction and the tilt amount of the stick on the xy plane, where the x direction represents the right direction and the y direction represents the front direction, for example. The distance from the center of the circle represents the amount of inclination.
Then, the CPU 13 detects the tilt amount of the stick, for example, in three stages based on the voltages V _x and V _y . For example, as shown in Table 2 below, the inclination amount is such that the square root of the sum of squares of the voltages V _x and V _y (so-called vector size) is 0 V to
When it is 0.7 volt, it is 0% of the maximum inclination angle, and when it is 0.7 volt-1.3 volt, it is 0% -33%.
33% to 66% when the voltage is from volt to 1.9 volts,
66% to 100% at 1.9 to 2.5 volts
To detect as. Therefore, by detecting the inclination corresponding to the voltage of 0.7 volts from the neutral position (0 volt) as the inclination being 0% of the maximum inclination angle, the stick is erroneously touched, and the stick is slightly inclined. It is possible to prevent a wrong operation.

[0034]

[Table 2]

Next, the CPU 13 determines, based on the detected tilt amount and the tilt direction detected in step ST3, that is, based on the vector representing the tilt.
The range to which the tilt of the stick belongs is detected. For example, as shown in FIG. 3 described above, the entire range of inclination is
The amount of inclination is 0% to 33%, 33% to 66%, 66% to 10
The range is 0%, and the range is divided into ranges # 1 to # 48 in alphabetical order in the tilt direction, the range to which the tilt of the stick belongs is detected, and the detected ranges # 1 to # 48 are respectively corresponded. Command numbers # 1 to # 48 to be executed are determined.

At step ST5, the CPU 13
A predetermined code based on the command number determined in step ST4, for example, as shown in Tables 3 and 4 below,
A 7-bit data code and an 8-bit category code conforming to the format used in the conventional remote controller are output, and after the cursor movement code for moving the cursor is output, the processing ends.

[0037]

[Table 3]

[0038]

[Table 4]

Specifically, for example, when the command number is # 1, that is, when the tilt of the stick is in the range # 1, the cursor movement code having the data code “0000001” and the category code “00100101” is selected. Output. Further, for example, when the command number is # 25, the cursor movement code having the data code “0001101” and the category code “00100101” is output.

By the way, the above category code is for identifying the type of the operated device such as a television receiver, a VTR, a so-called CD (compact disc) player, and the above "00100101" is the book. 1 shows a television receiver to which the invention has been applied. Also,
The data code is for instructing operation contents such as cursor movement, channel switching, and volume adjustment with respect to the operated device. The data codes shown in Tables 3 and 4 above are the movement direction and movement of the cursor. For example, "0000001" indicates the predetermined speed in the A direction, and "0010101" indicates the predetermined speed in the E direction.
Represents twice the speed. Further, the CPU 13 repeatedly executes the above steps ST1 to ST5 at a predetermined cycle,
As a result, the cursor movement code is periodically and repeatedly output (for example, at 45 ms) while the stick is tilted.

Further, the CPU 13 converts the trigger signal from the click switch 11c into a predetermined code and outputs it. For example, when the trigger signal is at L level, that is, when the click switch 11c is pressed, the data code is "0000000" and the category code is "001."
The click code "00101" is output.

Further, the CPU 13 converts the output of the direct function key group 12 into a predetermined code and outputs it. Specifically, direct function key group 12
Is a key switch 12 for performing so-called muting.
a, key switches 12b to 12i for switching and selecting video signals from a plurality of video devices, key switches 12j and 12k for switching channels, and key switches 12l and 12m for adjusting volume. , CPU 13 has these key switches 12a-1
When 2 m is pressed, a predetermined code corresponding to the pressed key switch, that is, the format used in the conventional remote controller and having the same data content, switches the input video signal or channel of the television receiver. A control command (hereinafter referred to as a control command code) for As the video device, in addition to the above-mentioned VTR, for example, a MUS that decodes so-called high-definition broadcasting
E decoder, BS tuner for receiving and selecting satellite broadcasting, multi-disc player (hereinafter referred to as MDP) capable of reproducing plural kinds of optical discs, digital V
There are TRs and the like (hereinafter referred to as source devices), and these source devices are assigned to the key switches 12b to 12i. Further, the predetermined code is not limited to the codes shown in Tables 3 and 4 above, and may be a so-called G code, for example.

Then, the CPU 13 supplies the predetermined code (cursor movement code, click code, control command code) generated as described above to the transmission section 14.
As shown in FIG. 1 described above, the transmitter 14 includes, for example, a light emitting diode 14a that emits infrared light and a transistor 14b that drives the light emitting diode 14a.
The CPU 13 supplies the base current to the transistor 14b based on a predetermined code, so that the infrared light modulated by the predetermined code is transmitted from the light emitting diode 14a.

In this way, the remote controller 10 can convert the output of the joystick 11 into a predetermined code having the same format as the control command code by the operation of the direct function key group 12 and output it. An existing decoder that decodes a control command code for switching source devices, switching channels, and the like can decode a cursor movement code for moving a cursor. That is, the number of decoders can be one, and the cost of the television receiver can be reduced.

By the way, the specific cursor movement codes shown in Tables 3 and 4 above are those when the click switch 11c is turned off and the stick is operated (tilted). When the stick is operated while the click switch 11 is in the ON state, a predetermined code having a data content different from that in the OFF state is transmitted to the television receiver, and the so-called drag function is activated in the television receiver as described later. You can do it.

Specifically, for example, the above-mentioned step ST4
In, the CPU 13 determines that the tilt of the stick is within the range #
When the click switch 11 is in the ON state, that is, whether the trigger signal is at the L level, and the stick is tilted while the click switch 11 is in the ON state, the range corresponding to the range is detected. Command numbers # 0 'to 48' are determined.

Then, in the above-mentioned step ST5,
A predetermined code corresponding to the command number # 0 'to 48' is output. For example, as shown in Table 5 and Table 6 below, when the command number is # 1 ', that is, the click switch 11
When is on and the tilt of the stick is in the range # 1, the drag code having the data code “1111111” and the category code “00100101” is output. Further, for example, when the command number is # 25 ', the drag code having the data code "0001100" and the category code "00100101" is output.

[0048]

[Table 5]

[0049]

[Table 6]

By the way, in order to reduce the discomfort between the operation feeling of the joystick 11, which is a pointing device, and the actual cursor movement amount, which will be described later,
The output of the joystick 11 may be non-linearly converted into a predetermined code.

Specifically, the inclination amount is nonlinearly set to, for example, 3
As shown in FIG. 4, for example,
Slope is 0% to 60%, 60% to 90%, 90% to 100
% #, Range alphabetically in direction # 1
The range is divided into # 48, the range of the tilt of the stick is detected, and the command numbers # 1 to # 48 corresponding to the detected ranges # 1 to # 48 are determined. As a result, even if the tilt is from the neutral position to 60% of the maximum tilt angle, the tilt is detected to be in the range # 1 to # 16, and even if tilted from 60% to 90%, the tilt is in the range # 17 to # 17. It is detected that it is in # 32, and the actual amount of cursor movement in the television receiver described later can be made to match the human sense of operation. Furthermore, the inclination direction can also be divided into non-equal parts to match the actual cursor movement direction with the human operation feeling.

Here, the appearance of the remote controller 10 having the above-described circuit configuration will be briefly described. Note that FIG.
The same parts as the circuit parts shown in FIG.

As shown in FIG. 5, for example, the remote controller 10 is provided with the key switches 12a to 12m on the front operation panel 10A of its main body. Further, the joystick 11 is arranged on the front operation panel 10A. Further, a spherical and spherical cover member 11a is attached to the tip of the stick, and the joystick 11 is covered with this cover member 11a. The stick can be tilted by rotating the cover member 11a.

Next, a television receiver to which the present invention is applied will be described. This television receiver has various functions, for example, a so-called picture-in-picture function,
The remote controller 1 has a function of switching and selecting and displaying video signals from a plurality of video devices such as a VTR, a function of remotely controlling the selected video device, and a volume setting function.
A predetermined code from 0 is received, and each function is operated based on this predetermined code.

That is, this television receiver 20
For example, as shown in FIG. 6, a video section 21 for displaying an image based on an input video signal on a screen, and a graphic display section 22 for displaying operation menus and cursors for a plurality of functions on the screen of the video section 21. The audio section 23 that outputs a sound based on the audio signal from the source device and a predetermined code from the remote controller 10 are received, and the cursor displayed on the graphic display section 22 moves based on the predetermined code. , A control unit 2 that selects a function where the cursor is located on the operation menu and controls the video unit 21 to the audio unit 23 so that the selected function operates.
4 and a transmitter 25 for transmitting the control command code from the controller 24 to an audio device such as a video device or a CD player.

The television receiver 20 is
The aspect ratio of the screen is, for example, 16: 9, and as shown in FIG. 7, for example, an image based on the high-definition broadcast from the MUSE decoder 52 can be displayed in the area 30 of the entire screen, and the terrestrial broadcast (so-called NTSC system) can be displayed. An image based on 4 is displayed in the area 31 as a so-called main screen with an aspect ratio of 4: 3, and the remaining area is divided into three areas 32a,
Video devices, such as VTRs 51a, 5 for 32b, 32c
The image based on the video signals from the 1b, BS tuner 53, MDP 54, etc. can be displayed as a so-called sub-screen. In addition, an operation menu necessary for operating a video device such as a VTR 51a and an audio device such as a CD player 55, and a picture-in
By displaying the cursor for performing picture setting, volume, channel switching, etc., and performing setting operations according to these displayed operation menus, various functions can be operated, and video and audio equipment ( Hereinafter, a control command code is transmitted to the AV device as a whole), and these AV devices can be controlled (remote operation). As the audio equipment, there are an AM / FM tuner, a record player, a digital audio tape recorder (so-called DAT), etc. in addition to the above-mentioned CD player.

Specifically, the video section 21 has an antenna 21a for receiving terrestrial broadcasting as shown in FIG.
A tuner 21b for selecting a desired channel from a so-called RF signal received by the antenna 21a, a changeover switch 21c for switching and selecting video signals from a plurality of video devices, and a switching selection for video signals for sub-screens. Changeover switch 21d, a memory (hereinafter referred to as a frame memory) 21e for storing the video signal selected by the changeover switch 21d, a video signal selected by the changeover switch 21c and a video signal read from the frame memory 21e. Is added, a color signal reproduction circuit (hereinafter referred to as RGBINF) 21g for converting the video signal from the adder 21f into a so-called RGB signal, and the RGBINF21
Selector switch 21h for switching and selecting the RGB signal from g and the RGB signal from the graphic display section 22.
And a cathode ray tube 21i for displaying an image based on the RGB signals from the changeover switch 21h.

Then, for example, the video signal of the channel selected by the tuner 21b is selected by the changeover switch 21c, and the video signal supplied from the video equipment such as the VTR 51a through the video input terminal T1 is changed over by the changeover switch 21d.
After being selected by (4), it is temporarily stored in the frame memory 21e. Then, the video signal selected by the changeover switch 21c and the video signal read out from the frame memory 21e by thinning out pixels, for example, are time-division multiplexed by the adder 21f, so that, for example, as shown in FIG. , An image of a baseball broadcast is displayed in the area 31 of the cathode ray tube 21i, an image of a movie reproduced by the VTR 51a is displayed in the area 32a, an image based on the video signal from the VTR 51b is displayed in the area 32b, and the MDP 54 is displayed in the area 32c. The image based on the video signal from is displayed.

On the cathode ray tube 21i, an operation menu required for controlling the source device selected by the changeover switch 21c based on the RGB signal from the graphic display section 22 is displayed. For example, as shown in FIG. 8, a VTR operation menu 41 and a cursor 42, which are so-called icons indicating reproduction, stop, fast forward, recording, etc., are displayed.

Specifically, the graphic display section 22
Is a video RAM (hereinafter referred to as VRAM) 22a storing graphic data, as shown in FIG.
And a controller 22b for controlling reading of graphic data from the VRAM 22a. And
In the VRAM 22a, for example, graphic data for displaying items of functions (hereinafter referred to as menu titles) of the television receiver 20, a cursor, an operation menu for AV equipment such as a VTR and a CD player, and a channel number. Is stored in advance, and the controller 22b reads these graphic data based on an instruction from the control section 24, converts them into RGB signals, and supplies them to the changeover switch 21h.
2a is controlled. For example, the controller 22b uses the VT
Based on the command to display the operation menu for R, the VTR
The VRAM2 controls the graphic data of the operation menu and the graphic data of the cursor for reading.
The reference numeral 2a reads out these graphic data, converts the graphic data into an RGB signal and a luminance signal Y, and supplies them to the changeover switch 21h. The change-over switch 21h, based on the brightness signal Y, changes the VRAM 22a.
And the RGB signal from RGBINF 21g are switched and selected. As a result, for example, as shown in FIG. 8 described above, the operation menu 41 and the cursor 4 are displayed in the area 31.
2 is displayed.

On the other hand, the audio section 23 has an amplifier 23a for adjusting volume and sound quality, as shown in FIG.
One of the audio signals from the tuner 21b and the AV equipment, which is composed of the speaker 23b and the like, is selected under the control of the control unit 24 (the changeover switch and the like are not shown), and the selected audio signal is transmitted through the terminal T2. Is supplied to the amplifier 23a. The amplifier 23a adjusts the volume and sound quality by amplifying this audio signal, and the amplified audio signal is output to the speaker 23b.
Supply to. As a result, the desired A is output from the speaker 23b.
The sound reproduced by the V device is output with its volume and sound quality adjusted.

Further, as shown in FIG. 6, the control section 24 receives the predetermined code from the remote controller 10 and a receiving circuit 24a based on the predetermined code received by the receiving circuit 24a. A computer that controls the video unit 21 to the transmission unit 25 so that the cursor displayed on the graphic display unit 22 moves, the function on the operation menu where the cursor is located is selected, and the selected function operates. A CPU 24b and an operation unit 24c having the same function as the remote controller 10 and provided on the operation panel are provided.

The receiving circuit 24a is connected to the remote controller 10
Receives the predetermined code sent from the infrared from,
The CPU 24b decodes the predetermined code received by the reception circuit 24a, and based on the decoding result, the tuner 2
1b, changeover switches 21c and 21d, frame memory 2
1e, controller 22b, etc. are controlled.

Specifically, for example, when the control command code by operating the direct function key group 12 is received, for example, by not operating the joystick 11 of the remote controller 10, for example, the control command code in which the source device is the VTR 51a is received, the CPU 24b This control command code is decoded and the video signal to be displayed in the area 31 is switched from, for example, the tuner 21b to the VTR 51a, and the changeover switches 21c, 21d and the controller are displayed so as to display the operation menu necessary for operating the VTR 51a. 22b is controlled.

Further, for example, when the cursor movement code is received, the CPU 24b decodes this cursor movement code and sets new coordinate data to the controller 2 so that the cursor displayed on the cathode ray tube 21i moves.
Supply to 2b. Then, when the click code is received, the changeover switches 21c and 21d, the controller 22b and the like are controlled according to the function where the cursor is positioned at that time, and a control command code for starting reproduction for the VTR 51a is generated, for example. The control command code thus generated is supplied to the transmission unit 25. The CPU 24
b is designed to perform the same control as described above also by a predetermined code sent from the operation unit 24c, and the user can operate from the operation panel instead of using the remote controller 10.

As shown in FIG. 6, the transmitter 25 includes a light emitting diode 25a which emits infrared rays, for example.
And a drive circuit 25b for driving the light emitting diode 25a. The drive circuit 25b sends a drive current based on a control command code supplied from the CPU 24b to the light emitting diode 25a, so that infrared light modulated by the control command code is emitted. Light emitting diode 25a to VTR51
It is sent to AV equipment such as a. Then, these AV devices start a predetermined operation based on the control command code. For example, when the VTR 51a receives a reproduction control command code, the VTR 51a starts reproduction, and the reproduced video signal is supplied to the above-mentioned video input terminal T1 via the video output terminal T3. As a result, an image of, for example, a movie reproduced by the VTR 51a is displayed on the cathode ray tube 21i.

Here, a specific example of control in the CPU 24b will be described with reference to the flowchart shown in FIG.

In step ST1, the CPU 24b
Judges whether a predetermined code has been received from the remote controller 10, and if so, proceeds to step ST2, and if not, repeats this step ST1.

At step ST2, the CPU 24b
Determines whether the type of the received predetermined code, that is, the received predetermined code corresponds to the above-mentioned control command code, cursor movement code, or drag code, and when the control command code, proceeds to step ST3. If it is a cursor movement code, the process proceeds to step ST4, and if it is a drag code, the process proceeds to step ST5.

In step ST3, the CPU 24b
Controls switching and selecting video signals from multiple video devices based on the control command code.
Control is performed to display an operation menu required to operate the selected video device.

Specifically, for example, if the source device is a VTR
VTR5 based on the control command code to 51a
Selector switch 2 so that the video signal from 1a is selected
The controller 22b outputs commands for controlling the 1c and displaying the operation menu and cursor necessary for operating the VTR.
Supply to. Based on this command, the controller 22b controls to read the graphic data necessary for displaying the VTR operation menu and the cursor from the VRAM 22a, and the VRAM 22a reads the graphic data and outputs the graphic data to the RGB signal and the luminance signal. It is converted into Y and supplied to the changeover switch 21h. As a result, for example, as shown in FIG.
The operation menu 41 including icons for reproduction, stop, fast forward, etc. necessary for the operation of is displayed. As described above, the source device is switched based on the control command code from the remote controller 10 and the operation menu for the selected source device is displayed, so that the user can select a plurality of operation menus for the desired source device. The operation menu for the selected source device is automatically displayed without performing the operation of selecting from the operation menu of 1., and the source device such as the VTR can be easily operated while looking at the screen.

Further, in step ST3, for example, when the user presses the key switch 12a of the remote controller 10, the CPU 24b receives the control command code of the muting and controls the gain of the amplifier 23a so as to reduce the volume. To do.

Further, for example, when the user presses the key switch 12j of the remote controller 10, the CPU 24b receives the channel up control command code and sets the channel to 1
Tuner 21b to switch to one larger channel
To control.

When the user presses the key switch 12l of the remote controller 10, the CPU 24b receives the volume up control command code and controls the gain of the amplifier 23a to increase the volume by one step.

When the direct control as described above is completed, the CPU 24b returns to step ST1 in order to receive the next predetermined code from the remote controller 10.

On the other hand, in step ST4, the CPU2
As will be described later, 4b moves the cursor displayed on the cathode ray tube 21i based on the cursor movement code, selects a function where the cursor is located on the operation menu, and displays an image so that the selected function operates. The units 21 to 25 are controlled. At this time, the CPU 24b
Generates a control command code for controlling the source device, if necessary. For example, when the user uses the joystick 11 of the remote controller 10 to move the cursor to, for example, the icon representing the VTR playback displayed in the operation menu and turns on the click switch 11c, the CPU 24b sends a message from the remote controller 10. A control command code for starting reproduction is generated based on the click code received, and the control circuit 2 drives this control command code.
Supply to 5b.

Further, in this step ST4, CP
As will be described later, the U 24b controls the controller 22b based on the cursor movement code so that the cursor shape becomes a shape corresponding to the function according to the cursor display position (hereinafter referred to as cursor shape control).

Further, the CPU 24b, as will be described later,
The presence or absence of the cursor movement code is detected, and the controller 22b is controlled so as to stop the cursor display when the cursor movement code is not present for a predetermined time (hereinafter referred to as cursor display stop control depending on the presence or absence of the cursor movement code).

Further, the CPU 24b, as will be described later,
When the cursor moves to a predetermined area, the controller 22b is controlled so as to stop the display of the cursor (hereinafter, referred to as stop control of cursor display depending on the display position of the cursor).

Further, the CPU 24b, as will be described later,
When the cursor moves to a predetermined area, the controller 22b is controlled so that the menu title, that is, the item of the function included in the television receiver 20 is displayed (hereinafter, referred to as menu title display control).

Further, the CPU 24b, as will be described later,
The controller 22b is controlled so that the moving speed changes when the cursor moves to a predetermined area (hereinafter referred to as cursor moving speed control).

When the various controls as described above are completed, the CPU 24b returns to step ST1 in order to receive the next predetermined code from the remote controller 10.

On the other hand, in step ST5, the CPU2
The controller 4b controls the controller 22b to move the operation menu to a desired position based on the drag code. Specifically, the user selects the click switch 11c.
When the stick is tilted in the state where is turned on, the drag code is transmitted from the remote controller 10 as described above. Then, the CPU 24b obtains new coordinate data for displaying the operation menu based on the drag code, and supplies this coordinate data to the controller 22b.
The controller 22b uses the new coordinate data to
For example, as shown in FIG. 10, an operation menu 4 for VTR
1 is moved to the area 32a. As a result, the user can view the image displayed in the area 31 without being disturbed by the operation menu 41. That is, for example, when an operation menu for adjusting the image quality is displayed in the area 32a, the area 31 not disturbed by the operation menu.
The image quality can be adjusted while observing the image displayed on. In other words, the user can move the operation menu to a desired position, and the operability can be improved.

When the above control is completed, the CPU 24b returns to step ST1 in order to receive the next predetermined code from the remote controller 10.

As described above, this television receiver 2
0 is an existing decoder that decodes control command codes for switching source devices and channels, that is, the same software in the CPU 24b, and decodes cursor movement code, click code, and drag code for cursor movement. can do. That is, the number of decoders can be one, and the cost can be reduced.

Next, various controls in step ST4 of the flow chart shown in FIG. 9 will be described in detail with reference to the flow chart.

When the cursor movement code is received, the CPU 24b proceeds to step ST as shown in FIG.
In step 1, it is determined whether or not the operation menu is displayed, and if not applicable, the process proceeds to step ST2, and if it is applicable, the process proceeds to step ST3.

In step ST2, the CPU 24b
For example, after supplying the controller 22b with an instruction to display an operation menu and a cursor for the source device selected for the parent screen, the process proceeds to step ST3.
Then, the controller 22b, based on this command,
VRAM to display operation menu and cursor
22a is controlled. As a result, for example, as shown in FIG. 8 described above, the operation menu 41 for VTR and the cursor 42 are displayed. That is, for example, when the operation menu is already displayed in the direct control in step ST3 of the flowchart shown in FIG. 9 described above or the control of the menu title display described later, step ST
Go directly to step 3. If not displayed, go to step S
After displaying the operation menu at T2, the process proceeds to step ST3. In other words, the user is
The operation menu can be displayed by tilting or clicking the joystick 10 without operating the direct function key group 12.

In step ST3, the CPU 24b
Calculates new coordinate data based on the current cursor display position and the received cursor movement code, and supplies the calculated coordinate data to the controller 22b. Then, the controller 22b causes the VRAM to display the cursor at a new position based on the coordinate data.
22a is controlled.

Specifically, the CPU 24b decodes the cursor movement code to detect the command numbers shown in the above Tables 3 and 4, and based on the coordinate data where the current cursor is located and this command number, Calculate new coordinate data. For example, as shown in Table 7 below, when the command number is 1 (the data code is “0000001”) and the cursor is currently located outside the operation menu, the current coordinate data is 2 for the y direction only. Is added to calculate new coordinate data. Further, for example, when the command number is 19 (data code is “0100101”) and the cursor is currently located outside the operation menu, 4 is added to the current coordinate data for the x direction and the y direction, respectively. Then, new coordinate data is calculated. Then, the CPU 24b supplies the new coordinate data calculated in this way to the controller 22b, and also supplies an instruction to instruct the shape of the cursor to the controller 22b based on the new coordinate data, as described later. Then, it progresses to step ST4. As a result, the cursor moves in accordance with the tilt of the stick tilted by the user, that is, in the range # 1 to 48 in which the tilt of the stick is located.

[0091]

[Table 7]

In other words, as described above, the remote controller 1
When the output of the joystick 11, which is a pointing device at 0, is non-linearly coded, the actual cursor movement amount can be made to match the human sense of operation.

In step ST4, the CPU 24b
Judges whether the click code has been received, and if so, proceeds to step ST5, and if not, returns to step ST1. That is, as described above, when the stick of the joystick 11 is tilted from the remote controller 10, the cursor movement code is continuously output in a predetermined cycle. Therefore, while the stick is tilted, the CPU
24b repeats the loop of step ST1 to step ST4. Therefore, the user can continuously move the cursor simply by tilting the stick. For example, a so-called trackball or mouse, the user needs to rotate the ball or the like each time to move the cursor. There is no.

In step ST5, the CPU 24b
Detects the cursor position when the click code is received, determines the function selected by the user based on the position, and controls the video unit 21 to the transmitting unit 25 so that the function operates. .. Specifically, for example, as shown in FIG. 12, when the VTR operation menu 41 is displayed and the click code is received when the cursor 42 is located at the so-called pause icon, the CPU 2
4 b generates a control command code indicating a pause and supplies the generated control command code to the transmission unit 25. As a result, the infrared rays modulated by the pause control command code are sent from the transmitter to the VTR 51a, for example. Then, the VTR 51a stops the running of the magnetic tape based on the control command code, and a still image is displayed in the area 31.

Further, for example, as shown in FIG. 15 described later, when the click code is received while the cursor is positioned in the area 32a, the CPU 24b displays the image displayed in the area 31 and the area 32a. The changeover switch 21c,
21d is controlled.

When the control of the selected function as described above is completed, the CPU 24b proceeds to step ST
Return to 1.

As described above, this television receiver 2
At 0, while watching the operation menu displayed on the screen, the television receiver 20, the VTR, the CD
AV equipment such as a player can be easily operated.
Further, for the operation, the direct function key group 12 and the joystick 11 are used for the remote controller 10 and the operation unit 2.
4c, the key switch can be significantly reduced as compared with the conventional device, and the cost and the size can be reduced.

Next, the control of the above-mentioned cursor shape will be described. In step ST3 of the flowchart shown in FIG. 11, the CPU 24b controls the shape of the cursor when moving the cursor, that is, when controlling the display position of the cursor, for example, according to the flowchart shown in FIG. Specifically, the area 30 of the entire screen of the cathode ray tube 21i is, as described above, the area 31 for displaying the parent screen and the areas 32a, 32 for displaying the child screen.
As shown in FIG. 14, the area 31 and the area 32a are divided into the areas b and 32c, and the area 31 and the area 32a are the upper area 33, the left areas 34, 35, 36 and 37, and the lower area. And 38 are provided.

Then, the CPU 24b carries out step ST1.
In, it is determined whether or not the cursor is positioned within the area 32a (excluding the portion overlapping the area 33). If yes, the process proceeds to step ST2; otherwise, step ST3.
Proceed to.

In step ST2, the CPU 24b
From the shape of the hand that indicates that the cursor 42 has no function even when clicked as shown in FIG.
For example, as shown in FIG. 15, the controller 22b is controlled so that the image displayed in the area 31 and the image displayed in the area 32a are swapped, and there is an arrow at each end so that the controller 22b is changed to a shape that rises to the right. After that, it ends.

In step ST3, the CPU 24b
Judges whether or not the cursor is positioned within the area 32b, and if so, proceeds to step ST4, and otherwise proceeds to step ST5.

At step ST4, the CPU 24b
Changes the shape of the cursor 42 from the shape of the hand to, for example, FIG.
As shown in, the image displayed in the area 31 and the area 3 are displayed.
Representing swapping the images displayed in 2b,
After the controller 22b is controlled so as to have a horizontal shape with arrows at both ends, the process ends.

In step ST5, the CPU 24b
Judges whether or not the cursor is positioned within the area 32c, and if so, advances to step ST6; otherwise, advances to step ST7.

At step ST6, the CPU 24b
Changes the shape of the cursor 42 from the shape of the hand to, for example, FIG.
As shown in, the image displayed in the area 31 and the area 3 are displayed.
Indicates that the images displayed in 2c are swapped,
After the controller 22b is controlled so that there are arrows at both ends and the shape changes to the lower right, the process ends.

In step ST7, the CPU 24b
Judges whether or not the cursor is positioned within the operation menu 41, and if so, proceeds to step ST8, and otherwise proceeds to step ST9.

In step ST8, the CPU 24b
Controls the controller 22b to change the shape of the cursor 42 from the shape of the hand to the shape of an arrow indicating that the function corresponding to the icon on which the cursor is positioned is selected, as shown in FIG. 12, for example. After that, it ends.

In step ST9, the CPU 24b
Judges whether or not the cursor is located in the area 33, and if so, proceeds to step ST8 described above, and otherwise proceeds to step ST10. That is, when applicable, for example, as shown in FIG. 18, a menu title 43 described later is displayed, and the shape of the cursor 42 is selected from the shape of the hand by selecting the item in the menu title 43 where the cursor is located. After the controller 22b is controlled so as to change the shape of the arrow indicating that the operation is performed, the process ends.

In step ST10, the CPU 24b
Judges whether or not the cursor is positioned in the area 34, and if so, proceeds to step ST11, and if not, proceeds to step ST12.

In step ST11, the CPU 24b
Changes the shape of the cursor 42 from the shape of the hand to, for example, FIG.
As shown in, the controller 22b is controlled so as to change the shape to indicate that the channel is up, and then the processing is ended.

In step ST12, the CPU 24b
Judges whether or not the cursor is positioned within the area 35, and if so, proceeds to step ST13, and otherwise, proceeds to step ST14.

In step ST13, the CPU 24b
Changes the shape of the cursor 42 from the shape of the hand to, for example, FIG.
As shown in, the controller 22b is controlled so as to change the shape to indicate that the channel is down, and then the process ends.

In step ST14, the CPU 24b
Judges whether or not the cursor is positioned within the area 36, and if so, advances to step ST15; otherwise, advances to step ST16.

In step ST15, the CPU 24b
Changes the shape of the cursor 42 from the shape of the hand to, for example, FIG.
As shown in, after controlling the controller 22b so as to change the volume into a shape representing one step up,
finish.

In step ST16, the CPU 24b
Judges whether or not the cursor is positioned within the area 37, and if so, proceeds to step ST17, and if not, proceeds to step ST18.

In step ST17, the CPU 24b
Changes the shape of the cursor 42 from the shape of the hand to, for example, FIG.
As shown in, after controlling the controller 22b so as to change the volume into a shape representing one step down,
finish.

In step ST18, the CPU 24b
Judges whether or not the cursor is positioned in the area 38, and if so, proceeds to step ST19, and otherwise, proceeds to step ST20.

In step ST19, the CPU 24b
According to the position of the cursor in the left-right direction within the area 38, the shape of the cursor 42 is changed from the shape of the hand to, for example, FIG.
Channel number (eg 6 channels) as shown in
After controlling the controller 22b so as to change the shape to the shape shown in FIG.

In step ST20, the CPU 24b
Since the cursor is not located in the above-mentioned areas 32a to 37, the controller 22b is controlled so that the shape of the cursor 42 becomes the shape of the hand, and then ends.

As described above, by controlling the shape of the cursor so as to have a shape corresponding to the function in accordance with the cursor display position, the user can frequently use functions such as channel switching and volume adjustment. For swapping the image of the parent screen and the image of the child screen, it is possible to operate by moving the cursor and clicking without performing an operation such as displaying an operation menu and selecting a desired function. Also, the function that operates when clicked can be confirmed before clicking, and erroneous operation can be prevented in advance. That is, operability can be improved.

Next, the stop control of the cursor display depending on the presence or absence of the above-mentioned cursor movement code will be described. C
When the PU 24b controls the display position of the cursor in step ST3 of the flow chart shown in FIG. 11 described above, for example, according to the flow chart shown in FIG. Then, the controller 22b is controlled.

That is, in step ST1, CP
The U 24b determines whether it has received the cursor movement code or the click code, and if so, the step ST
If not applicable, go to step ST3.

In step ST2, the CPU 24b
Sets a timer t for measuring the elapsed time to 0, and then proceeds to step ST3.

In step ST3, the CPU 24b
Adds 1 to the timer t to make a new timer t, and then proceeds to step ST4.

At step ST4, the CPU 24b
Judges whether the timer t has reached a predetermined value N, and if so, proceeds to step ST5, and if not, proceeds to step ST6.

In step ST5, the CPU 24b
The controller 22 to give an instruction to stop displaying the cursor.
After supplying to b, it ends.

In step ST6, the CPU 24b
Terminates after controlling the controller 22b to continue the cursor display as it is.

The above control is executed as a so-called subroutine, for example, in synchronization with a so-called vertical synchronizing signal. As a result, when the cursor movement code or the like is not received for a predetermined time, that is, N times the vertical scanning period (for example, 5 seconds), the cursor display is automatically stopped, and the user ends the operation of the joystick 11. After a lapse of a predetermined time from then, the image that is not disturbed by the cursor can be viewed.

Next, the cursor display stop control according to the above-mentioned cursor display position will be described. CPU2
4b, when controlling the display position of the cursor in step ST3 of the flowchart shown in FIG.
For example, according to the flowchart shown in FIG. 25, when the cursor moves to a predetermined area, the controller 22b is controlled so as to stop displaying the cursor.

That is, in step ST1, CP
The U24b determines whether or not the cursor is positioned in a predetermined area, for example, the lower right corner of the screen. If yes, the process proceeds to step ST2, and if not, the process proceeds to step ST3.

In step ST2, the CPU 24b
The controller 22 to give an instruction to stop displaying the cursor.
After supplying to b, it ends.

In step ST3, the CPU 24b
Terminates after controlling the controller 22b to continue the cursor display as it is.

As described above, by stopping the display of the cursor when the cursor moves to the predetermined area, the user can erase the cursor with his / her intention and can see the image not disturbed by the cursor.

Next, the control of the above-mentioned menu title display will be described. The CPU 24b corresponds to the above-mentioned FIG.
In step ST3 of the flowchart shown in FIG. 26, when controlling the display position of the cursor, for example, when the cursor moves to a predetermined area according to the flowchart shown in FIG. The controller 22b is controlled so that the items of the functions included in the display are displayed.

That is, in step ST1, CP
The U 24b determines whether or not the cursor is located in a predetermined area, for example, the above-mentioned area 33, and if so, the step S
If not applicable, the process proceeds to step ST3.

In step ST2, the CPU 24b
Is the controller 2 command to display the menu title
After supplying to 2b, it ends. The controller 22b is
In accordance with this command, the VRAM 22a reads the graphic data of the menu title stored in advance from the VRAM 22a, converts it into an RGB signal, and outputs it.
22a is controlled. Thereby, for example, as shown in FIG. 18 described above, TV, VTR, MDP, CD,
A menu title 43 having items such as AMP and DAT is displayed. Then, at this time, when the user moves the cursor 42 to a desired item and clicks it, the CPU 24
b supplies the controller 22b with a command to display an operation menu for the selected item. As a result, for example, when the VTR item is selected, as described above,
An operation menu for VTR is displayed. Also, for example, A
When the MP (amplifier) item is selected, for example, as shown in FIG.
As shown in FIG. 7, a voice (operation) menu 41 necessary for adjusting the sound quality or so-called Sarand is displayed.

In step ST3, the CPU 24b
Ends after supplying an instruction to stop displaying the menu title to the controller 22b.

As described above, when the cursor moves to the predetermined area, the menu title showing the function of the television receiver 20 that allows the user to perform the setting operation is displayed. As a result, the user can easily know the functions that the user has and can use all of these functions without looking at the instruction manual and the like. Further, since the menu title is not always displayed, it is possible to normally see an image that is not disturbed by the menu title. Further, it is not necessary to provide a dedicated key switch for calling the menu title on the remote controller or the operation unit 24c, and the remote controller can be downsized.

Next, the control of the cursor moving speed mentioned above will be explained. In step ST3 of the flow chart shown in FIG. 11, the CPU 24b controls the display position of the cursor so that the movement speed changes when the cursor moves to a predetermined area in accordance with the flow chart shown in FIG. 28, for example. The controller 22b is controlled.

That is, in step ST1, CP
The U 24b determines whether or not the cursor is positioned in a predetermined area, for example, the operation menu, and if not, the step S24.
The process proceeds to T2, and if applicable, the process proceeds to step ST3.

In step ST2, the CPU 24b
Decodes the cursor movement code to detect the command numbers shown in Tables 3 and 4 above, and based on the coordinate data where the current cursor is located and this command number,
Calculate new coordinate data. That is, Table 7 described above
, The command number is 1 (the data code is "0
00000 ”), new coordinate data is calculated by adding 2 to the current coordinate data only for the y direction. Further, for example, when the command number is 19 (data code is “0100101”), x is added to the current coordinate data.
A new coordinate data is calculated by adding 4 to each of the direction and the y direction. The CPU 24b then uses the new coordinate data calculated in this way in the controller 22.
supply to b. As a result, the cursor moves in accordance with the tilt of the stick tilted by the user, that is, in accordance with the range # 1 to 48 in which the tilted stick is located.

In step ST3, the CPU 24b
Detects the command numbers shown in Tables 3 and 4 above by decoding the cursor movement code as in step ST2 above. Then, as shown in Table 7 above, the command number is 1 (the data code is "0000001")
Is 1 for the current coordinate data only for the y direction
(1/2 to step ST2) is added to calculate new coordinate data. Also, for example, the command number is 1
When 9 (data code is “0100101”), the current coordinate data is 2 for the x direction and 2 for the y direction.
(1/2 to step ST2) is added to calculate new coordinate data. The CPU 24b supplies the new coordinate data calculated in this way to the controller 22b. As a result, according to the tilt of the stick tilted by the user, that is, the range # 1 in which the tilted stick is located.
In accordance with ˜48, the cursor moves and the moving speed of the cursor inside the operation menu becomes ½ of the moving speed outside the operation menu (step ST2).

As described above, when the cursor moves to a predetermined area of the operation menu or the like, by slowing the moving speed, the cursor can be quickly moved to the operation menu, and in the operation menu, Fine movement is possible, and it is possible to easily select an icon. In other words, operability can be improved.

[0143]

As is apparent from the above description, the remote control device according to the present invention converts the trigger signal from the output of the pointing means and the switch means into a predetermined code and transmits the code. The television receiver receives a predetermined code from the remote operation device, moves the cursor displayed on the screen based on the predetermined code, selects the function where the cursor is located on the operation menu, and is selected. By controlling the function to operate, an existing decoder that decodes a control command code for switching source devices, switching channels, and the like can decode a predetermined code for moving the cursor.
That is, the number of decoders can be one, and the cost can be reduced. Also, by using the pointing means, it is possible to operate each of a plurality of functions,
It is not necessary to provide a dedicated key switch for operating each function unlike the conventional remote control device. That is, the remote control device can be downsized, and the television receiver can be remotely controlled by a simple operation of moving the cursor and operating the switch means.

In the remote control device according to the present invention, the output of the pointing means is converted into a predetermined code in a non-linear manner, the trigger signal from the switch means is converted into a predetermined code, and the obtained predetermined code is transmitted. As a result, it is possible to match the actual cursor movement amount with a human operation feeling.

In the remote control device according to the present invention, the output of the pointing means is converted into a predetermined code having different data contents in two states of the trigger signal from the switch means, for example, high level and L level. By converting the trigger signal from the switch means into a predetermined code and transmitting the obtained predetermined code, the drag function for moving the operation menu in the television receiver is operated by the pointing means for moving the cursor. be able to. Therefore, the user can move the operation menu to a desired position,
For example, you can see unobstructed images in the operation menu.

[Brief description of drawings]

FIG. 1 is a block diagram showing a circuit configuration of a remote controller to which the present invention is applied.

FIG. 2 is a flowchart for explaining the operation of the remote controller.

FIG. 3 is a diagram schematically showing a tilt direction and a tilt amount of a joystick forming the remote controller on a plane.

FIG. 4 is a diagram schematically showing a tilt direction and a tilt amount of a joystick forming the remote controller on a plane.

FIG. 5 is a diagram showing an appearance of a front surface and a side surface of the remote controller.

FIG. 6 is a block diagram showing a circuit configuration of a television receiver to which the present invention has been applied.

FIG. 7 is a diagram showing a specific display example of the television receiver.

FIG. 8 is a diagram showing a specific example of an operation menu displayed on the television receiver.

FIG. 9 is a flow chart for explaining the operation of the television receiver.

FIG. 10 is a diagram showing a specific example of an operation menu displayed on the television receiver when dragged.

FIG. 11 is a flowchart illustrating a cursor movement control operation.

FIG. 12 is a diagram showing a specific example when the cursor is moved to an icon.

FIG. 13 is a flowchart illustrating a control operation for changing the cursor shape.

FIG. 14 is a diagram showing an area on the screen for explaining a change in cursor shape.

FIG. 15 is a diagram showing a specific example of a cursor shape.

FIG. 16 is a diagram showing a specific example of a cursor shape.

FIG. 17 is a diagram showing a specific example of a cursor shape.

FIG. 18 is a diagram showing a specific example of a cursor shape.

FIG. 19 is a diagram showing a specific example of a cursor shape.

FIG. 20 is a diagram showing a specific example of a cursor shape.

FIG. 21 is a diagram showing a specific example of a cursor shape.

FIG. 22 is a diagram showing a specific example of a cursor shape.

FIG. 23 is a diagram showing a specific example of a cursor shape.

FIG. 24 is a flowchart illustrating a control operation for stopping cursor display.

FIG. 25 is a flowchart illustrating a control operation for stopping cursor display.

FIG. 26 is a flowchart for explaining a control operation for displaying a menu title.

FIG. 27 is a diagram showing a specific example of an operation menu displayed on the television receiver.

FIG. 28 is a flowchart for explaining the operation of controlling the moving speed of the cursor.

[Explanation of symbols]

 10 ... Remote control 11 ... Joystick 11c ... Click switch 13 ... CPU 20 ... Television receiver 22 ... Graphic display unit 24 ... Control unit

Claims (4)

[Claims] 1. A remote control device for remotely controlling a television receiver, comprising: pointing means for moving a cursor displayed on the screen of the television receiver; switch means for generating a trigger signal; A code conversion means for converting the output of the pointing means and the trigger signal from the switch means into a predetermined code; and a transmission means for transmitting the predetermined code from the code conversion means to the television receiver. Remote control device. 2. A remote control device for remotely controlling a television receiver, comprising: pointing means for moving a cursor displayed on the screen of the television receiver; switch means for generating a trigger signal; Code conversion means for converting the output of the pointing means into a predetermined code having different data contents in two states of the trigger signal from the switch means, and converting the trigger signal from the switch means into a predetermined code. A remote control device comprising: a transmission means for transmitting a predetermined code from the means to the television receiver. 3. A remote control device for remotely controlling a television receiver, including pointing means for moving a cursor displayed on the screen of the television receiver, and switch means for generating a trigger signal. Code conversion means for converting the output of the pointing means into a predetermined code non-linearly and converting the trigger signal from the switch means into a predetermined code, and the predetermined code from the code conversion means to the television receiver. A remote control device comprising: a transmitting unit for transmitting. 4. A television receiver having a plurality of functions, cursor display means for displaying an operation menu and a cursor for the plurality of functions on a screen, and the remote according to claim 1, claim 2 or claim 3. A predetermined code is received from the operation device, the cursor displayed by the cursor display means is moved based on the predetermined code, a function on which the cursor is located on the operation menu is selected, and the selected function is operated. A television receiver comprising: a control unit for controlling the operation.