JP3210560B2 - Tablet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tablet which outputs cursor control data formed from a pressed position of a tablet sheet to a controlled device and controls movement of a cursor displayed on a display of the controlled device. Relates to a tablet that wirelessly outputs cursor control data to a controlled device.

[0002]

2. Description of the Related Art A conventional pressure-sensitive tablet 1, for example, is known.
00 has a configuration as shown in FIG. That is, the X-coordinate resistance plate 101 and the Y-coordinate resistance plate 102 are overlapped so that the resistance layers face each other while being separated at a small interval by an insulating dot spacer (not shown) or the like.

This resistance layer is formed of a uniform resistor. Therefore, when a voltage for coordinate detection is applied to one electrode of the resistance plate and the other electrode is grounded, each position of the resistance plate is separated from the ground side electrode. An electric potential proportional to the distance is generated, and a uniform gradient electric potential gradient is formed.

In the case of performing coordinate detection with the resistance pressure-sensitive tablet having such a configuration, first, the control circuit 1
05, the switches 103 and 104 on the X side
Is closed, and a potential gradient is applied to the X coordinate resistance plate 101. At this time, the switch 107 connected to the input terminal of the A / D converter 106 is connected to the electrode on the Y coordinate resistance plate 102 side.

Here, the point P (x,
When y) is pressed with a finger or the like, the potential VP at point _P becomes
Assuming that the resistance at a distance from the application-side electrode is x2 and the resistance at a distance from the ground-side electrode is x1 as shown in the figure, V _CC × x1 ÷
(X1 + x2), and the x coordinate (x) is detected by reading the potential _VP with the A / D converter 106.

Next, the switches 103 and 104 on the X side are opened, the switches 108 and 109 on the Y side are closed, and the switch 107 connected to the input terminal of the A / D converter 106 is connected to the electrode on the X coordinate resistance plate 101 side. Connect to

Similarly, if the resistance at the point _P is y2 at the distance from the electrode on the application side and y1 is the resistance at the distance from the electrode on the ground side, then V _CC × y1 ÷ (y1 + y2).
By reading this potential _VP with the A / D converter 106, the y coordinate (y) is detected.

The A / D converter 106 outputs to the cursor control data generation circuit 110 the pressed position data consisting of the x coordinate (x) and the y coordinate (y) detected in this way.

The cursor control data generation circuit 110 compares the pressed position data with the pressed position data input immediately before the cursor position data and converts the data into cursor control data indicating the relative movement amount between the x coordinate and the y coordinate. The cursor control data is stored in the controlled device 11 such as a personal computer.
1 is in accordance with a data input format for controlling movement of a cursor.

The control circuit 105 connected to the output side of the cursor control data generation circuit 110 outputs the cursor control data to the controlled device 111 via the output interface 112 at a predetermined timing.

Conventional tablet 100 and controlled device 11
1, each interface 112, as shown
Since 113 is connected by cable 113,
The cursor control data is sent to the device driver 115 via the cable 113.

The device driver 115 forms position information for cursor control from the cursor control data,
The movement of the cursor on the display is controlled by an operating system or a program.

[0013]

As described above, since the conventional tablet 100 is connected to the controlled device 111 via the cable 114, the operation position of the tablet 100 is limited to the periphery of the controlled device 111. Therefore, the operation of the tablet 100 is restricted.

For this reason, a tablet for transmitting cursor control data wirelessly to a controlled device has been considered. However, it is necessary to separately provide a modulation circuit and a transmission circuit for modulating transmission data for wireless transmission in the tablet. There is a problem that the cost becomes high, the number of parts increases, and the size increases.

In recent years, with the progress of a GUI (Graphical User Interface) environment, a visual interface such as a window or an icon is displayed on a display when an image of a television receiver (hereinafter referred to as a TV) is switched. A device has been developed in which a cursor is moved to an interface and an image or the like is switched according to the content displayed on the window or icon. Further, there has been developed a device that moves a cursor displayed on a TV screen to draw an arbitrary figure on the screen.

[0016] Such a cursor moving operation is performed by a conventional TV.
It cannot be performed by a remote control transmitter widely used as an accessory of the camera, and a pointing device such as a tablet for controlling movement of a cursor is required. However, as described above, the tablet can be used only around the TV, and for an operator who is used to the wireless control by operating the remote control transmitter, the TV is only used when the cursor is moved.
Is extremely troublesome to operate.

Furthermore, even if a wireless tablet is used for this cursor movement operation, in addition to the above-mentioned problems, TV
Two devices, a remote control transmitter and a tablet, are used for one remote operation, and the operation is similarly troublesome.

Further, the remote control transmitter includes:
Keys for forming motion control data are stored on the tablet
Is a tablet sheet for generating cursor control data.
Are required for each device, so they are
In addition to the increased number of parts,
Space must be secured, and when the equipment becomes large,
There was a problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a tablet capable of controlling a controlled device wirelessly without requiring a separate transmission circuit for wireless transmission. With the goal.

It is another object of the present invention to provide a tablet capable of wirelessly controlling TV operation control and cursor movement control with one device without enlarging an input operation surface .

[0021]

SUMMARY OF THE INVENTION In order to solve the above problems, a tablet according to the first aspect of the present invention includes a housing provided with a pair of tablet sheets arranged in parallel with a slight gap therebetween, and one of the tablets. Pressed position detecting means for detecting the position where the tablet sheet is pressed and contacting the other tablet sheet as pressed position data, cursor control data generating means for forming cursor control data from the pressed position data, and an operation surface of the tablet sheet Housing that can be opened and closed freely
To the other tablet when pressed down.
Covers with keys for pressing the
Key and the pressed key are detected by the pressed position detecting means.
Key that is specified from the pressed position data
Data generation means, operation control data generation means for forming operation control data from key data , mode selection means for switching between tablet operation mode and remote control operation mode, and cursor control data and operation control data, selectively, Control data transmission means for transmitting to the controlled device in accordance with the transmission format, wherein the control data transmission means transmits the cursor control data to the controlled device in the tablet operation mode, and displays the cursor displayed on the display of the controlled device. Move control, in the remote control operation mode, transmit operation control data to the controlled device,
The operation of the controlled device is controlled.

When the tablet operation mode is selected by the mode selection means, cursor control data corresponding to the pressed position of the tablet sheet is transmitted to the controlled device as transmission data according to the transmission format of the remote control transmitter. When the remote control operation mode is selected, the operation control data corresponding to the depressed key is transmitted to the controlled device as transmission data according to the transmission format of the remote control transmitter.

Therefore, a single device can be used as a remote control transmitter for controlling the operation of the controlled device and a tablet for controlling the movement of the cursor.

Further, since the cursor control data of the tablet is transmitted using the control data transmission means of the remote control transmitter, it is necessary to separately provide a modulation circuit and a transmission circuit for modulating the transmission data for wireless transmission in the tablet. Absent.

The tablet according to a second aspect is characterized in that the mode selecting means is a switch attached to the housing.

By operating the switch, the tablet operation mode and the remote control operation mode are switched.

According to a third aspect of the present invention, in the tablet, the control data transmitting means converts the control data into transmission data of a transmission format of the remote control transmitter, a modulation means for modulating the transmission data, and a modulated transmission data. As an infrared signal.

The cursor control data and the operation control data are
The transmission data is converted into transmission data of a transmission format of the remote control transmitter, and the transmission data modulated by the modulation unit is converted into an infrared signal by the infrared light emitting unit and transmitted to the controlled device.

A tablet according to a fourth aspect is characterized in that the controlled device is a television receiver.

The cursor control data of the tablet is transmitted to the television receiver by using control data transmission means of a remote control transmitter widely used as an accessory of the television receiver.

Therefore, the processing according to the display of the visual interface is performed using the tablet provided in the same housing as the remote control transmitter also for the television receiver which displays the visual interface and switches the image and the like. it can.

[0032]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, will be described with reference to the attached <br/> drawings Te to the embodiment of the present invention.

FIGS. 1 to 4 show a tablet 2 according to an embodiment of the present invention. As shown in these figures, a synthetic resin housing 4 comprises an upper case 4a and a lower case 4b. A pair of tablet sheets 3 is provided on the flat side of the case 4a.
Is attached.

The pair of tablet sheets 3a and 3b are supported on a rigid plate 5 such as an iron plate (see FIG. 4), and the upper tablet sheet 3a is inserted into a window hole 4c formed in a rectangular shape in the upper case 4a. It is arranged so that the operation surface of it faces.

The operation surface of the tablet sheet 3a is
c is covered with a synthetic resin cover 6 pivotally attached to the upper case 4a so as to rotate on one side. Cover 6 is shown in FIG.
As shown in the figure, the shafts 6a have substantially the same shape as the contour of the window hole 4c, and are provided with pivot shafts 6a, 6a which are engaged with concave portions (not shown) on the inner surface of the window hole 4c from both side surfaces at one end. I have.

Therefore, the cover 6 is used for the tablet sheet 3
2 (a) covering the operation surface of FIG. 2 and the two positions of FIG. 2 (b) where the operation surface of the tablet sheet 3 is exposed.

A switch 12 serving as mode selection means is mounted on the inner side surface behind (to the right in FIG. 2) the window hole 4c, and the switch 12 operates when the rear end surface 6b of the cover 6 abuts. . When the operation surface of the tablet sheet 3 is covered with the cover 6 as shown in FIG. 2A, the switch 12 is pressed by the rear end surface 6b of the cover 6 to enter the remote control operation mode. The output is connected to the key data generation circuit 23. Also, FIG.
When the cover 6 is opened, the pressing of the switch 12 is released, the tablet operation mode is set, and the output of the A / D converter 20 is switched to the cursor control data generation circuit 22 side.

That is, the tablet 2 according to the present embodiment serves as a tablet in the tablet operation mode and a remote control transmitter in the remote control operation mode.

The cover 6 accommodates a rubber sheet 8 on which a plurality of keys 7 are integrally attached. As shown in FIG. 4, the rubber sheet 8 has a pressing portion 7a of each key 7 protruding from the cover 6 as shown in FIG. So that it is positioned between the cover 6 and the back cover 9 fitted on the bottom side of the cover 6.

Each key 7 of the rubber sheet 8 includes a pressing portion 7a, a pressing projection 7b vertically extending downward from the pressing portion 7a, and a frustoconical elastic portion continuously extending downward from the periphery of the pressing portion 7a. 7c, and these keys 7 are integrally connected by a connecting portion 8a.

With the cover 6 covering the window hole 4c of the upper case 4a, the pressing projection 7b of each key 7 of the rubber sheet 8 is
Project downward from the back cover 9 and are located on the operation surfaces of the pair of tablet sheets 3.

As shown in FIGS. 1 and 2, the upper case 4a
A rubber sheet 11 in which a plurality of keys 10 are integrally connected is also stored between the tablet sheet 3 and the tablet sheet 3. Each key 10 has the same configuration as the key 7 and has an upper case 4a.
The pressing portion 10 a protrudes from the back cover 9, and the pressing protrusion 10 b protrudes downward from the back cover 9, and is located on the operation surface of the rubber sheet 8.

Each key 7 and key 10 correspond to the operation of a TV which is a controlled device.
The key 10 corresponds to the channel of the satellite broadcasting, and a display indicating the operation control of the key is printed directly on or around the key 7, 10 corresponding to the operation control of the video switching, the channel, and the volume.

The tablet 2 according to the present embodiment detects the pressing position of the tablet sheet 3 by the resistance contact method, and a uniform resistance layer is applied to the contact surfaces of the tablet sheets 3a and 3b facing each other. The two are superposed at a small distance by an insulating dot spacer (not shown) formed on the facing surface by printing.

When the cover 6 of the tablet 2 thus constructed is opened as shown in FIG.
Can be directly pressed by a finger, and at the same time, the switch 12
Is released and the tablet operation mode is set, and FIG.
, The output side of the A / D converter 20 is connected to the cursor control data generation circuit 22.

FIG. 5 is a block diagram showing the operation of the tablet in the tablet operation mode.

As shown in FIG.
An application-side electrode 14a and a ground-side electrode 14b are formed at both ends in the X-direction, and an application-side electrode 15a and a ground-side electrode 15b are formed at both ends in the Y-direction orthogonal to the X-direction of the lower tablet sheet 3b. Is formed.

In the tablet operation mode, opening and closing of the switches 16, 17, 18, and 19 connected to these electrodes are controlled by the control circuit 13 to alternately form a potential gradient having a gradient equal to the tablet sheets 3a and 3b. , The pressed position (x, y) of the tablet.

[0049] That is, when detecting the X-coordinate of the pressed position P (Px) closes the switches 16 and 17, to form a potential gradient from _{V CC} to 0V to the tablet sheet 3a, the switches 18 and 19 released, the other tablet sheet 3b and the potential V _X of the pressing position P. A switch 2 connected to the input of the A / D converter 20
Switching to the ground electrode 15b 1 to the control of the control circuit 13 inputs a potential _{V X} of the pressing position P to the A / D converter 20.

Assuming that the resistance from the application side electrode 14a to the pressing position P is x _b and the resistance from the ground side electrode 14b to the pressing position P is x _a , the potential V _X is V _CC × x _a ÷ (x _a +
a x _b), the reference voltage the potential _{V X} Vre
If read by the A / D converter 20 to the f was _{V CC,}
The output of the A / D converter 20 represents the x coordinate (Px) of the pressed position P.

The pressed position data (Px) of the x coordinate is
8-bit digital data is input to the cursor control data generation circuit 22 via the switch 12, and is temporarily stored in the cursor control data generation circuit 22.

The pressed position data (Py) at the y coordinate is detected by the same method as the pressed position data (Px) at the x coordinate. That is, under the control of the control circuit 13, the switches 18 and 19 are closed and the tablet sheet 3b is closed.
The potential gradient from _{V CC} to 0V formed on, switch 1
6,17 opened and the tablet sheet 3a and the potential _{V y} of the pressing position P. Also, by switching the switch 21,
The ground electrode 14b on the tablet sheet 3b side is connected to the input of the A / D converter 20, the potential _Vy is read by the A / D converter 20, and the 8-bit y-coordinate pressing position data (Py) is generated by a cursor control data generation circuit. 22.

Thereafter, each switch is switched under the control of the control circuit 13, and the detection of the pressed position data (Px, Py) of the x coordinate and the y coordinate is repeated in the same manner.

The cursor control data generation circuit 22 converts the thus input pressed position data (Px, Py) of the x coordinate and the y coordinate into the previously input pressed position data (Px, Py).
x, Py), and the difference is used to form the 3-byte cursor control data shown in FIG. Therefore, the cursor control data indicates the relative movement amount of the pressed position P, and among the three bytes of cursor control data, the relative position data x in the X direction at the bit position represented by X0 to X7 is Y0.
To Y7 include the relative position data y in the Y direction.

The cursor control data is temporarily stored in the data register 24 until all three bytes of data are input, and thereafter output to the control circuit 13 and converted into transmission data.

This transmission data follows the transmission format of the remote control transmitter for controlling the operation of the TV. As shown in FIG. 8A, a header, an ID code and an end are added before and after the cursor control data. It is a thing.

The custom code in the ID code is a unique code corresponding to the model of the TV, and is for preventing the other controlled devices from malfunctioning. The mode type in the ID code is such that the received TV can determine whether the transmission data is the cursor control data in the tablet operation mode or the operation control data in the remote control operation mode. Bit data is "1".

The control circuit 13 further modulates the transmission data into a PPM modulation signal shown in FIG. Therefore, the control circuit 13 performs the above-described switch opening / closing control and also functions as the formatting means and the modulation means of the TV remote control transmitter.

The control circuit 13 outputs the PPM-modulated transmission data to the output circuit 25. Output circuit 25
Is connected to an oscillator 27 via a frequency dividing circuit 26, which divides the frequency of the reference frequency generated by the oscillator and outputs the frequency to the output circuit 25.

The output circuit 25 receives the frequency-divided signal from the frequency divider 15 and secondary-modulates the PPM modulated signal at a carrier frequency of 38 KHz, and emits infrared light according to the secondary-modulated signal shown in FIG. The switching control of the drive transistor 28 of the diode 29 is performed.

Thus, an infrared signal including cursor control data is transmitted from the infrared light emitting diode 29 to the TV.

As described above, the control data transmitting means indicated by 30 in FIG. 5 utilizes the control data transmitting means provided in the remote control transmitter of the TV, and transmits the operation control data in the remote control operation mode described below. It is also used when transmitting to a TV as an infrared signal.

FIG. 9 is a block diagram showing an operation of the tablet 2 in the remote control operation mode.

When the cover 6 of the tablet 2 is closed so as to cover the tablet sheet 3 as shown in FIG. 2 (a), the switch 12 is pressed and the remote control operation mode is set.
, The output side of the A / D converter 20 is connected to the key data generation circuit 23.

In this embodiment, the keys 7, 10 of the remote control transmitter are positioned on the tablet sheet 3, and the key switches are set to the keys 7, 10 and the tablet sheet 3.
, The structure of the conventional key switch is simplified, and the key scan circuit and the like of the remote control transmitter are not required.

For example, when the key 7d for turning on and off the "power" of the TV is pressed, the tablet sheet 3 below the key 7d is pressed.

This pressed position is detected in the same manner as in the above-described tablet operation mode. That is, the switches 16, 17, 18, 19, and 21 are controlled to open and close by the control circuit 13, so that potential gradients are alternately formed on the tablet sheets 3a and 3b, and the pressing position data (Px, Py) is output to the key data generation circuit 23.

The key data generation circuit 23 generates the pressed position data (P
x, Py) to output key data corresponding to the pressed keys 7, 10.

FIG. 7 shows the pressed position data (Px, Px
This shows the relationship between y) and the keys 7 and 10 indicated by broken lines. For example, when Px is in the range from "63" to "127", Py is
Is in the range of “149” to “170”, “1”
It is determined that the key 7 indicating "0" has been pressed.

If the "power" key 7d is pressed, the pressed position data Px is in the range of "191" to "255", Py is in the range of "51" to "85", and the key data is In the generation circuit 23, key data when the “power” key 7 d is pressed is output to the data register 24.

After the key data is temporarily stored in the data register 24, the control circuit 13 forms operation control data from the key data.

The operation control data is 1-byte data representing an operation command corresponding to the key data. If the key data is data representing the depression of the key 7d, the operation control data is set to TV.
This is a control code for turning on and off the power of the power supply.

Further, in the control circuit 13, the operation control data is converted into transmission data.

The transmission data including the operation control data has a header, an ID code, and an end added before and after according to the transmission format of the remote control transmitter, similarly to the transmission data including the cursor control data.
Bit data indicating the mode type of the ID code is “0”
Becomes

As described above, the control circuit 13 regards the data output from the data register 24 as the cursor control data in the tablet operation mode, and as the key data in the remote control operation mode, and performs the above-described processing. This is performed as transmission data.

As in the tablet operation mode, the control circuit 13 further modulates this transmission data into a PPM modulation signal shown in FIG. 8B, and the output circuit 25 converts it into a secondary modulation signal shown in FIG. The switching control of the drive transistor 28 of the infrared light emitting diode 29 is performed.

Thus, an infrared signal including operation control data is transmitted from the infrared light emitting diode 29 to the TV.

FIG. 10 shows a TV 1 receiving this infrared signal.
FIG. 3 is a block diagram of a receiving unit.

In the figure, reference numeral 31 denotes a photodiode which receives an infrared signal transmitted from the tablet 2 and photoelectrically converts the infrared signal into an electric signal including transmission data.

A receiving circuit 32 is connected to the output side of the photodiode 31. The receiving circuit amplifies the input electric signal, shapes the waveform, and converts the signal into a PPM modulated signal as shown in FIG. Demodulate.

The demodulation circuit 33 connected to the subsequent stage of the reception circuit 32 converts the PPM modulated signal into transmission data as shown in FIG.

The data processing circuit 34 determines the mode type bit data when the custom code in the transmission data matches its own TV code, and recognizes the data code as the cursor control data when it is "1". , And outputs cursor control data to a device driver (not shown) to move and control the cursor displayed on the TV display.

On the other hand, the bit data of the mode type is "0".
If so, the data code is recognized as operation control data, and is output to an operation control circuit of a TV (not shown), and an operation of, for example, “power on” corresponding to the operation control data is executed.

The present invention is not limited to the above-described embodiment, but can be variously modified. For example, the format of the cursor control data is not limited to the format shown in FIG. 6, and may be another output format output from a pointing device such as a mouse or a trackball. In particular, in the above embodiment, the cursor control data represents the relative position data obtained by comparing the pressed position data, but the pressed position data representing the absolute position may be used as it is as the cursor control data. In this case, the pressed position detecting means also functions as the cursor control data generating means.

Further, in the above-described embodiment, the pressing position detecting means of the tablet detects the pressing position of the tablet sheets 3 and 38 by the resistance contact method. However, the position detecting means used in other tablets has been described. The pressing position may be detected by the means. For example, when a finger or the like is brought close to the tablet sheets 3 and 38, a position detecting unit that detects the approach position to the tablet sheets 3 and 38 from the capacitance that changes at that position may be used. In a case where a so-called capacitance method is adopted, an operation position approaching the tablet sheets 3 and 38 is a pressing position of the tablet sheets 3 and 38.

Further, in the above embodiment, the circuits such as the A / D converter 20, the cursor control data 22, the data register 24, the control circuit 13, and the output circuit 25 have been described as separate circuits. The functions of these circuits may be exerted by integrating the circuits.

[0087]

According to the first aspect of the present invention, a single device can be used as both a remote control transmitter for controlling the operation of the controlled device and a tablet for controlling the movement of the cursor.

Further, since the cursor control data of the tablet is transmitted using the control data transmitting means of the remote control transmitter, it is necessary to separately provide a modulation circuit and a transmission circuit for modulating the transmission data for wireless transmission in the tablet. Absent.

According to the second aspect of the present invention, it is possible to easily switch between the tablet operation mode and the remote control operation mode with the switch attached to the housing.

According to the third aspect of the present invention, since the cursor control data and the operation control data are transmitted to the controlled device while being included in the infrared signal, they are not affected by electromagnetic waves around the controlled device.

According to the fourth aspect of the present invention, a television receiver that displays a visual interface and switches between images and the like can be handled by using a tablet provided in the same housing as the remote control transmitter. Can be.

[Brief description of the drawings]

FIG. 1 shows a tablet 2 according to a first embodiment of the present invention.
(A) is a plan view of a state in which the housing 4 is covered with the cover 6, and (b) is a plan view of a state in which the cover 6 is removed.

2A is a side view of the tablet 2 with the cover 6 closed, and FIG. 2B is a side view of the tablet 2 with the cover 6 opened.

3A is a plan view of the cover 6, and FIG. 3B is a bottom view.

FIG. 4 is a sectional view taken along line AA of FIG. 1;

FIG. 5 is a block diagram of the tablet according to the first embodiment.

FIG. 6 is an explanatory diagram showing a format of cursor control data.

FIG. 7 is an explanatory diagram showing a relationship between pressed position data (Px, Py) and keys 7, 10 indicated by broken lines.

8A and 8B show a relationship between bit data of transmission data and a modulation signal. FIG. 8A is an explanatory diagram showing a configuration of transmission data. FIG. 8B is a waveform diagram of a modulation signal obtained by performing primary modulation on transmission data. (c) is a waveform diagram of a modulated signal obtained by second-modulating transmission data.

FIG. 9 is a block diagram illustrating an operation of the tablet 2 in a remote control operation mode.

FIG. 10 is a block diagram of a receiving unit of TV1.

FIG. 11 is a block diagram of a conventional tablet and a controlled device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Controlled equipment 3 Tablet sheet 4 Case 7 Key 12 Switch 13 Formatting means 22 Cursor control data generating means 25 Modulating means 29 Infrared light emitting means 30 Control data transmitting means 37 Key switch 39 Slide switch

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) G06F 3/03 310 G06F 3/033 380 H04N 5/00

Claims (4)

(57) [Claims] And 1. A pair arranged in parallel at a slight clearance tablet sheet (3a) enclosure (3b) is arranged (4), is one of the tablet sheet (3a) is pressed, the other Pressed position detecting means for detecting a position in contact with the tablet sheet (3b) as pressed position data; cursor control data generating means (22) for forming cursor control data from the pressed position data; and tablet sheet (3a) (3b) )
When attached to the housing (4) so that it can be closed and pushed down
Key to press one of the tablet sheets (3a)
(7) Detects the cover (6) provided in a plurality of parts and the pressed key (7) by the pressed position detecting means.
Key that is specified from the pressed position data
Data generation means, operation control data generation means for forming operation control data from key data , mode selection means (12) (39) for switching between tablet operation mode and remote control operation mode, and cursor control data and operation control data, A control data transmitting means (30) for selectively transmitting the control data to the controlled device (1) according to the same transmission format. (1) to control the movement of the cursor displayed on the display of the controlled device (1).
A tablet which transmits operation control data to a controlled device (1) to control the operation of the controlled device (1). 2. A mode selection means, a tablet according to claim 1, characterized in that it is a switch mounted to the housing (4) (12) (39). 3. A control data transmitting means (30) for converting control data into transmission data of a transmission format of a remote control transmitter;
A modulating means (25) for modulating transmission data; and an infrared light emitting means (2) for transmitting the modulated transmission data as an infrared signal.
The tablet according to claim 1 , wherein the tablet comprises: 9). Wherein any one of claims 1 to 3 controlled device (1) is characterized in that it is a television receiver
Tablet as described in.