JP3348338B2 - Wireless input device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless input device used for an information processing device such as a computer and a word processor.

[0002]

2. Description of the Related Art A keyboard used as a data input device used in an information processing apparatus such as a computer and a word processor has N characters.
um Lock (Numerical Lock), C
apsLock (Capture Lock), Scr
There are keys such as all locks, and these keys have a display unit for displaying a key operation state. If the information processing device and the keyboard are connected by a cord, there is no problem. However, there is a wireless connection between the keyboard and the main unit using infrared rays.
In this case, since it is separated from the main body, commercial power cannot be supplied, and a battery is built in. In the case of this wireless keyboard, too, these keys are provided with a display unit for operating status, and the power consumed by the display unit is usually large, so that there is a problem that battery power is consumed in an instant. Has occurred.

[0003]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a wireless input device which consumes less battery power even if a specific key is displayed in the wireless input device. That is.

[0004]

According to a first aspect of the present invention, there is provided a wireless input device comprising: a key row including specific keys (referring to a name lock key, a caps lock key, a scroll lock key, etc.); a keyboard provided with an equal) of the light emitting element and the internal battery, and a lead for transmitting a display device and a power supply code and data for displaying a receiving element the operational state of the particular key that receives light from the light emitting element < br /> comprises a structure provided with the display adapter, and display on the display adapter side operations specific key, to obtain the power for the display from a commercial power supply.

According to a second aspect of the present invention, there is provided a wireless input device, wherein a light receiving element for receiving light from a light emitting element is provided for a keyboard including a key array including a specific key, a light emitting element (such as infrared rays), and a built-in battery. A display element for displaying an operation state of a specific key is provided in the information processing device, and power for display is obtained from the information processing device. According to a third aspect of the present invention, in the wireless input device, a key row including a specific key is generated by operating the specific key.
Transmission means for transmitting an input signal, and a built-in battery.
A keyboard for receiving the signal from the transmitting means.
Communication means and a table for displaying the operation state of the specific key.
Indicator, power cord, and lead for data transmission.
And a display adapter having a
Was. Further, the wireless input device according to the fourth aspect is characterized in that
Key sequence including the fixed key and the key
Transmission means for transmitting an input signal, and a built-in battery.
A keyboard for receiving the signal from the transmitting means.
Communication means and a table for displaying the operation state of the specific key.
And an information processing apparatus main body provided with the display element.
And

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.
This will be described with reference to FIGS. FIG. 1 is a perspective view of a wireless input device according to a first embodiment of the present invention, FIG. 2 is a front view of a display adapter which is a part of the device, and FIG. It is a block circuit diagram of a device. First, the keyboard 1 is provided with a character key row 2, a numeric key row 3, and a control key row 4 in the same manner as a normal keyboard, and a part thereof includes a caps lock key 2a, a name lock key 3a, and a scroll lock. The key 4a is arranged.

[0007] A touch pad (mouse) 5, which is an input means other than keys, is connected to a side edge of the keyboard 1. An infrared light emitting element 6 made of a semiconductor for transmitting input signals generated by operating various keys and the mouse 5 in the form of infrared pulses is attached to a front side edge of the keyboard 1.

Unlike the conventional keyboard 1, the keyboard 1 is not provided with a display for displaying the operation states of the caps lock key 2a, the name lock key 3a, and the scroll key 4a.
Although not shown, a battery is housed as a power source.

A display adapter 7 is provided separately from the keyboard 1. This display adapter 7
In the front panel 7a, a light receiving element 8 for receiving infrared rays from the light emitting element 6 of the keyboard 1 is provided.
a, a display element 9b for caps lock display and a display element 9c for scroll lock display are arranged in a row in the horizontal direction.

A first lead 10 serving as a data line of the keyboard 1 is provided on the back surface of the display adapter 7.
a, a second lead 10b as a data line of the touch pad (mouse) 5 is provided. These first and second leads 10a, 10b are connected to an information processing device (not shown), and the light receiving element 8 The received input data is transmitted.

Further, a power cord 1 for supplying power to the display elements 9a to 9b and the like is provided on the back surface of the display adapter 7.
0c is provided to receive power from a commercial power supply through a plug 10d from an information processing device (not shown) or a separately prepared power adapter. Note that 10a, 1
In the case of a system in which the lead of the data line 0b supplies power, the power cord 10c and the plug 10d
Is unnecessary.

FIG. 3 shows a block circuit diagram of the display adapter 7. The display adapter 7 is provided with a microcomputer 11 for processing signals received by the light receiving element 8.

The operation of the wireless input device configured as described above will be described. When various keys on the keyboard 1 or the touch pad (mouse) 5 is pressed to perform input, a code signal corresponding to the pressed key is generated by a microcomputer in the keyboard 1, and the code is transmitted to the light emitting element 6.
To send out infrared signals. Then, the light receiving element 8 provided in the display adapter 7 receives the infrared signal, generates a key code, and transmits the key code to the information processing device via the first and second leads 10a and 10b. Tell

Then, among various keys of the keyboard 1,
When the cap ski 2a, the namal lock key 3a, and the scroll lock key 4a are pressed, the microcomputer 11 identifies them on the display adapter 7 side and displays the display corresponding to these keys on the display elements 9a, 9b, 9c.
Each display is turned off when an operation release signal of these keys is received.

According to the wireless input device of the first embodiment, the display element 9a for the name lock display is provided.
A display element 9b for caps lock display and a display element 9c for scroll lock display are provided on the display adapter 7 so that power is supplied from a commercial power supply to the display adapter 7, and the keyboard 1 is provided with a display element. Power consumption of the internal battery can be reduced. Further, there is an advantage that the display adapter 7 can be manufactured at a relatively low manufacturing cost, and an existing information processing apparatus can be used.

Second Embodiment FIG. 4 is a perspective view showing a wireless input device according to a second embodiment of the present invention. A display 12a and a storage medium insertion port 12 which are normally provided in the information processing apparatus
b, 12c and the like. In particular, in the second embodiment, the display elements 9a, 9b, 9c
Are provided in a horizontal line on the front panel 12d, and an infrared light receiving element 8 is provided at a corner thereof.

As in the first embodiment, the keyboard 1 includes a key row, a light emitting element 6, a touch pad (mouse) 5, and the like. In the case of the second embodiment, a display element 9a for displaying a natural lock, a display element 9b for displaying a caps lock, and a display element 9c for displaying a scroll lock are provided in the information processing apparatus main body 12, and commercialized there. Since power is supplied from the power supply and the keyboard 1 is not provided with a display element, the power consumption of the built-in battery of the keyboard 1 can be reduced.

In the first and second embodiments of the present invention, the display element is provided in the display adapter or the information processing apparatus. However, the display can be performed by using a display attached to the information processing apparatus.

[0019]

According to the present invention, it is possible to provide a wireless input device which consumes less power of the battery built in the keyboard and has a long usable time.

[Brief description of the drawings]

FIG. 1 is a perspective view of a wireless input device according to a first embodiment of the present invention.

FIG. 2 is a front view of a part of the display adapter of the wireless input device according to the first embodiment of the present invention.

FIG. 3 is a circuit block diagram of the wireless input device according to the first embodiment of the present invention.

FIG. 4 is a perspective view of a wireless input device according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Keyboard 2 Character key string 2a Caps lock key 3 Numeric string key 3a Namer lock key 4 Control key string 4a Scroll key 5 Touch pad (mouse) 6 Light emitting element 7 Display adapter 7a Front panel 8 Light emitting element 9a Display element of name lock 9b Caps lock display element 9c Scroll lock display element 10a First lead 10b Second lead 10c Power cord (power supply line) 10d Plug 11 Microcomputer 12 Information processing device main body 12a Display 12b, 12c Storage medium insertion opening 12d Front panel

Claims (4)

(57) [Claims] 1. A key row including a specific key, a light emitting element,
A display adapter comprising: a keyboard having a built-in battery; a light receiving element receiving light from the light emitting element; a display element for displaying an operation state of the specific key; a power cord; and a lead for transmitting data. A wireless input device comprising: 2. A key array including a specific key, a light emitting element,
A wireless input device, comprising: a keyboard having a built-in battery; a light receiving element receiving light from the light emitting element; and an information processing apparatus main body having a display element for displaying an operation state of the specific key. 3. A key sequence including a specific key, and the specific key
Transmitting means for transmitting an input signal generated by the operation of
A keyboard having a built-in battery; a receiving means for receiving the signal from the transmitting means;
A display element for displaying the operation status of the
Display with a code and a lead for transmitting data
A wireless input device comprising: an adapter . 4. A key sequence including a specific key, and the specific key
Transmitting means for transmitting an input signal generated by the operation of
A keyboard having a built-in battery; a receiving means for receiving the signal from the transmitting means;
A display element for displaying the operation state of the fixed key.
A wireless input device comprising: an information processing device main body .