JPH07281819A - Image display device - Google Patents

Abstract

PURPOSE:To switch and display object display image data with a real operation feeling without any mechanical operation on an image display device which switches and displays previously stored image data such as an electronic pocketbook and an electronic game machine. CONSTITUTION:When the hand of a user is positioned in front of a transmission part 14 and a reception part 15 at an optional distance without contact, the reflection light of infrared light which is outputted from the transmission part 14 while its arrival distance is varied in order is photodetected by the reception part 15, and the noncontact operation distance is detected corresponding to a counter value as light emission driving information at infrared light emission time corresponding to the shortest photodetection distance, and, the value of a ROM address register M is selectively set and while plural kind of dog character data which are previously stored in a ROM 13 and change in motion such as a looking-back dog and a hand raising dog and its effect sound data are selectively displayed on a liquid crystal display part 18, corresponding effect sounds are generated by a speaker 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display device for displaying prestored image data in an electronic device such as an electronic notebook or an electronic game machine.

[0002]

2. Description of the Related Art In a conventional electronic device, for example, in an image display device for displaying a character such as an animal, it is usually a plurality of keys from a key input section to move or change the displayed character image. It is performed according to the key input operation of.

[0003]

However, in the above-mentioned conventional image display device, in order to change or move the displayed character image, a command is made by a mechanical operation of key input.

Therefore, there is a problem that the displayed character image of an animal or the like cannot be displayed by moving or changing it according to a command of a realistic sensation by the user, which is not interesting.

The present invention has been made in view of the above problems,
The displayed image data of the animal or the like is moved with a gesture-like operation feeling that the command or intention is actually transmitted to the animal or the like by hand gestures to move the animal without performing mechanical key input operation, or It is an object of the present invention to provide an image display device that can be changed and displayed.

[0006]

That is, the first image display device according to the present invention is provided with an image data storage means for storing a plurality of types of image data, a transmission means for transmitting a radio signal, and this transmission means. Depending on the transmission output changing means for changing the transmission output of the radio signal, the receiving means for receiving the reflected signal of the radio signal transmitted from the transmitting means, and the receiving result corresponding to the transmission output of the radio reflected signal by the receiving means. And display means for displaying at least one image data of the plurality of types of image data stored in the image data storage means.

A second image display device according to the present invention is provided with an image data storage means for storing a plurality of types of image data, a transmission means for transmitting a radio signal, and a transmission output of the radio signal by the transmission means. Transmission output changing means for changing, reception means for receiving a reflection signal of a radio signal transmitted from the transmission means, and a radio reflection signal received by the reception means when the radio reflection signal is received. Reflection distance detection means for detecting the distance to the signal reflection position based on the output change state by the transmission output change means, and storage in the image data storage means according to the distance detection result to the signal reflection position by the reflection distance detection means. And a display unit for displaying at least one image data of the plurality of types of image data.

[0008]

That is, in the image display device, the wireless signal such as infrared light from the transmitting means whose output is changed by the transmitting output changing means is reflected by the operation of the user who does not contact the apparatus body, and the reflected signal is When received by the receiving means, the image data storage means is responsive to the distance to the signal reflection position detected based on the change state of the transmission output corresponding to the reception of the reflected signal, that is, the non-contact operation distance of the user. Since at least one image data of a plurality of types of image data stored in advance is selected and displayed by the display means, a selective display of a character image of a dog or the like in accordance with a gesture command by the user's hand. Will be performed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an electronic circuit of an electronic notebook equipped with the image display device of the present invention.

This electronic notebook has a CPU (central processing unit).
11 is provided. The CPU 11 has a key input unit 12
It controls the operation of each part of the circuit in accordance with a system program stored in advance in the ROM 13 which is activated in response to a key operation signal from the CPU 11. The CPU 11 includes a key input unit 12, a ROM 13, a transmitter 14, and a receiver. 15, and the RAM 16 are connected.

Further, the CPU 11 has an oscillation circuit 11
b and a timer 11a including a frequency dividing circuit 11c are connected, and a liquid crystal display unit 18 is further provided via a display driving circuit 17.
Is connected to the speaker 2 via the amplifier circuit 19
0 is connected.

The key input section 12 is provided with character keys and a ten-key pad 12a for inputting "name" and "telephone number" to be registered as notebook data, and when switching between notebook mode and electronic pet mode. A "mode" key 12b operated, a "start" key 12c operated as a transmission start key of notebook data to other electronic devices in the notebook mode, and a start key of infrared light emission in the electronic pet mode, a notebook mode Is provided with an "end" key 12d or the like which is operated as a reception end key for the notebook data received from another electronic device, and is operated as an infrared light emission stop key in the electronic pet mode.

In the ROM 13, in addition to a system program for controlling the CPU 11, a plurality of types of displayed image data and sound effect data corresponding to each of the displayed image data are stored in advance.

FIG. 2 is a view showing the displayed image data and its sound effect data which are stored in advance in the ROM 13 of the electronic notebook. That is, the ROM 13 stores "M = 0 to 0".
5 types (group) of dog character data addressed by "4" are two as bitmap data (1) (2) 1
The sound effect data is stored as a set and the sound effect data corresponding to the four types of character data is stored as PCM data.

FIG. 3 is a circuit diagram showing the configuration of the transmitting unit 14 of the electronic notebook. The transmitter circuit 14 includes a transmitter circuit 14
a and a light emitting element 14b are provided to emit infrared light in accordance with transmission data provided from the CPU 11. In the notebook mode, the notebook data displayed on the liquid crystal display unit 18 is stored in the "start" key 12c. The data transmission transistor Tr0 is modulated by the transmission circuit 14a according to the operation.
Also, it is transmitted and output as infrared light emission data from the light emitting element 14b via the resistor R0.

Further, the transmission circuit 14a is provided with a quaternary counter 14c. This quaternary counter 14c
When the "start" key 12c is operated in the electronic pet mode, the quaternary counting operation is performed according to the clock signal CK of a predetermined cycle provided from the CPU 11,
The 2-bit count data sequentially counted by the quaternary counter 14c is transferred to the decoder 14d.

The decoder 14d includes the transmitting circuit 14
The quaternary 2-bit count data transferred from a is decoded, and when the count data is "00", the first level light emission drive signal a is generated, and when the count data is "01", the second level light emission drive signal b is generated. In the case of "10", the third level light emission drive signal c is selectively output sequentially, and in the case of "11", the fourth level light emission drive signal d is sequentially and selectively output, and the drive signal a is output. Then, the first transistor Tr1 and the resistor R
When the first level infrared light is emitted and output from the light emitting element 14b via 1 and the drive signal b is output, the second level infrared light is emitted from the light emitting element 14b via the second transistor Tr2 and the resistor R2. When the light emission is output and the drive signal c is output, the third level infrared light is emitted and output from the light emitting element 14b through the third transistor Tr3 and the resistor R3, and when the drive signal d is output, the fourth transistor Tr4 and The fourth level infrared light is emitted and output from the light emitting element 14b through the resistor R4.

Here, the resistance values of the resistors R0 to R4 are set in the relationship of R0 <R1 <R2 <R3 <R4, and the light emission output at the time of transmitting the notebook data via the resistor R0 is: The reaching distance of the light emission signal is set as an intensity of, for example, 5 m, the first level infrared light output through the resistor R1 is set as a signal reaching intensity of 40 cm or less, and the second level of the infrared light output through the resistor R2 is set. Infrared light output is 30c
The signal arrival intensity is set to m or less, the third level infrared light output through the resistor R3 is set to 20 cm or less, and the fourth level infrared light output through the resistor R4 is 10 cm or less. Is set as the signal arrival strength of.

FIG. 4 is a timing chart showing an output operation of the first to fourth level light emission drive signals a to d in the electronic pet mode of the electronic notebook. That is, in the electronic pet mode, when the "start" key 12c is operated, the clock signal CK is supplied to the quaternary counter 14c of the transmitter 14, and the quaternary 2-bit count data is repeatedly counted up. The first to fourth level light emission drive signals a to d are sequentially and repeatedly output, and the light emitting element 14
The reachable distance of infrared light from b is area A (≤40 cm) →
Area B (≤30 cm) → Area C (≤20 cm) → D
Area (≦ 10 cm) → ...

On the other hand, the receiving section 15 includes a receiving circuit 15
a and a light receiving element 15b are provided to receive and receive an infrared light emission signal from the outside. In the notebook mode, notebook data transmitted as infrared light emission data from another electronic device is transmitted through the light receiving element 15b. The signal is received and demodulated by the receiving circuit 15a and displayed on the liquid crystal display unit 18.

In the electronic pet mode, the infrared light from the outside or the reflected light of the infrared light emitted by the transmitter 14 is received by the light receiving element 15b as a response signal, and the light receiving state is received by the receiving circuit 15a. Is notified to the CPU 11 via.

FIG. 5 is a diagram showing a configuration of a register provided in the RAM 16 of the electronic notebook. That is, the R
The AM 16 has a notebook data register 16a in which notebook data for a predetermined number of people consisting of "name" and "telephone number" is registered at the address indicated by the notebook data pointer P, and display data to be displayed on the liquid crystal display unit 18. The display register 16b written as image data, the transmitting unit 1 when the infrared light emitted from the transmitting unit 14 in the electronic pet mode is reflected and received by the receiving unit 15
A counter value register 16c in which a counter value in the quaternary counter 14c of 4 is written, a mode flag register N set to "0" in the notebook mode and "1" in the electronic pet mode, character data stored in the ROM 13, and A ROM address register M that indicates the address of the sound effect data and a light emission flag register T that is set to "1" in the output state of the clock signal CK in the electronic pet mode, that is, in the infrared light emission state are provided.

In the notebook mode, the liquid crystal display section 18 displays the notebook data input in response to the operation of the character keys and the numeric keypad 12a or the notebook data register 1 of the RAM 16.
The notebook data retrieved from 6a or the receiving unit 15
Any of the notebook data received via is displayed.

In the electronic pet mode, the RAM 16
At least one set read from the ROM 13 according to the ROM address indicated by the ROM address register M of
The character data of (1) and (2) are displayed alternately every second.

In the electronic pet mode, the speaker 20 produces a sound effect based on the sound effect data read from the ROM 13 in accordance with the ROM address indicated by the ROM address register M of the RAM 16.

On the other hand, the timer 11a is, for example, 32 Hz.
The timer signal of is supplied to the CPU 11.
Corresponding to the timer signal of Hz, the clock signal CK in the electronic pet mode is sent to the transmission circuit 14a of the transmission unit 14.
Is supplied.

Here, in the electronic pet mode,
When the quaternary count value at the time of receiving the infrared light read from the counter value register 16c in the RAM 16 is “00” and the arrival distance of the infrared light at that time is within 40 cm,
"1" is set in the ROM address register M,
If the quaternary count value is "01" and the arrival distance of the infrared light at that time is within 30 cm, "2" is set in the ROM address register M, and the quaternary count value is If "10" and the arrival distance of the infrared light at that time is within 20 cm, "3" is set in the ROM address register M, and the quaternary count value is "11" at that time. When the reaching distance of the infrared light is within 10 cm, "4" is set in the ROM address register M.

In this case, the infrared light from the transmitting unit 14 has the first reachable distance, the second reachable level, and the longest reachable order.
Even when the reflected signals are repeatedly transmitted in the order of the third level → the fourth level → ..., and the reflected signals are sequentially received, the counter value by the quaternary counter 14c when reflected by the infrared light of the shortest distance and received is , Is set in the counter value register 16c in the RAM 16, the infrared light reflection response distance, that is, the non-contact operation distance by the user is detected based on the arrival distance of the infrared light according to the counter value, and in response to this. R
The OM address M is set.

That is, the ROM address register M
When the infrared light emitted from the transmitter 14 is received by the receiver 15 by a non-contact operation by the user's hand, the distance from the transmitter / receivers 14, 15 to the infrared light reflection position, that is, The address value is set according to the distance to the hand by the non-contact operation.

Next, the operation of the electronic notebook having the above structure will be described. FIG. 6 is a flowchart showing the overall processing of the electronic notebook. That is, when "0" is set in the mode flag register N of the RAM 16 when the "mode" key 12b in the key input unit 12 is operated, that is, when the CPU 11 is currently set in the notebook mode. "1" is set in the mode flag register N, and the CPU 11 is switched to the electronic pet mode and set (steps S1 → S2 → S3).

When the CPU 11 is set to the electronic pet mode, "0" is set in the ROM address register M (step S4). Also, the "mode" key 1
When "1" is set in the mode flag register N of the RAM 16 when the 2b is operated, that is, at present,
When the CPU 11 is set to the electronic pet mode, "0" is set in the mode flag register N,
The CPU 11 is set to switch to the notebook mode (steps S1 → S2 → S5).

Then, in the notebook mode in which "0" is set in the mode flag register N of the RAM 16, the notebook mode processing is executed by the CPU 11 (steps S6 → S7).

Further, in the electronic pet mode in which "1" is set in the mode flag register N, the CPU
Electronic pet mode processing by 11 (see FIGS. 7 to 10)
Is executed (step S6 → SA).

FIG. 7 is a flowchart showing the electronic pet mode processing in the electronic notebook. FIG. 8 is a diagram showing a character display state at the time of operating the “start” key 12c associated with the electronic pet mode processing in the electronic notebook.

In FIG. 9, the non-contact operation distance x by the user associated with the electronic pet mode processing in the electronic notebook is 10
It is a figure which shows the character display state when it is cm or less. FIG. 10 is a view showing a character display state when the non-contact operation distance x by the user accompanying the electronic pet mode processing in the electronic notebook is longer than 10 cm and 20 cm or less.

First, in the overall process of the electronic notebook shown in FIG. 6, the "mode" key 1 of the key input unit 12
When the operation 2b sets "1" in the mode flag register N in the RAM 16 and "0" in the ROM address register M to set the CPU 11 to the electronic pet mode, the electronic pet in FIG. Mode processing is started (steps S1 to S4, SA).

That is, in this electronic pet mode, when the "start" key 12c is operated as shown in FIG. 8, "1" is set in the light emission flag register T in the RAM 16.
Is set, the supply of the clock signal CK to the quaternary counter 14c incorporated in the transmission circuit 14a of the transmission unit 14 is started, and the count data "00" → "01" from the quaternary counter 14c to the decoder 14d. → "10"
→ "11" → ... is sequentially and repeatedly transferred (step A1)
→ A2).

Then, from the decoder 14d, as shown in FIG. 4, the first count data corresponding to each count data is output.
~ 4th level light emission drive signals a to d are output, whereby the signal arrival distance from the light emitting element 14b is A area (≤ 40 cm) → B area (≤ 30 c
m) → C area (≦ 20 cm) → D area (≦ 10 c
m) → ... The infrared light emission signal that is repeatedly changed is continuously output.

At the same time, in step S4 in FIG. 6, since "0" is initially set in the ROM address register M of the RAM 16, that ROM is set.
A set of character data corresponding to the address "M = 0"
(1) (2) (see FIG. 2) is read from the ROM 13 to the CPU 11, and its character data (1) (2), that is, the kennel
As shown in FIG. 8, the dog character data entering and exiting the kennel consisting of a combination of (1) and the dog (2) with its face out of the kennel (1) is displayed on the liquid crystal display unit 18 every 1 second. Is displayed (step A3).

In this way, the light emitting element 14b of the transmitter 14 is
Infrared light whose signal arrival area is sequentially changed from is output and the initial screen of the character data corresponding to the ROM address "M = 0" is displayed as shown in FIG. Then, as shown in FIG. 9, the user's hand is placed 10c in front of the light emitting element 14b and the light receiving element 15b.
When it is placed in a non-contact position at a close distance of m or less, the signal reaching distance is A area (≦ 40 cm) → B area (≦ 30 cm).
→ C area (≤ 20 cm) → D area (≤ 10 cm) →
Infrared light emitted and output from the light emitting element 14b after being repeatedly changed as to ... All infrared light is reflected by the user's hand and is received by the light receiving element 15b, and the shortest distance (≦ 10 cm) among them. ) The counter value "1" by the quaternary counter 14c when the light is reflected by the light emission drive signal d)
1 "is read by the CPU 11 (step A4 → A
5).

Then, it is compared with the counter value already set in the counter value register 16c in the RAM 16 to judge the match / mismatch (steps A6 and A).
7). In this case, since no count data has been set in the counter value register 16c in the RAM 16 yet, it is determined that the counter values do not match and the shortest light receiving distance (≤10 cm) read from the quaternary counter 14c.
The counter value "11" corresponding to is set in the counter value register 16c (steps A7 → A8).

After that, the infrared light emitting signal whose signal reaching distance is changed is again output from the light emitting element 14b of the transmitting unit 14 so that all the infrared light is not emitted to the close range of 10 cm or less. When the light is re-reflected by the hand of the user who is positioned by contact and received by the light receiving element 15b, the counter value "11" corresponding to the shortest light receiving distance (≤10 cm) is read from the quaternary counter 14c and stored in the RAM 16. It is compared with the counter value already set in the counter value register 16c (steps A4 → A5, A6).

In this case, since the counter value register 16c in the RAM 16 is set to the counter value "11" corresponding to the shortest light receiving distance (≤10 cm) at the time of the previous reception of the light emission reflection signal, ROM corresponding to the counter value "11" when it is determined that the counter values match
The address "M = 1" is set in the ROM address register M in the RAM 16 (steps A7 → A9).

As a result, the ROM address "M =
A set of character data (1) (2) (see FIG. 2) corresponding to “1” is read from the ROM 13 to the CPU 11, and the character data (1) (2), that is, facing backward in front of the kennel. The character data of the dog (1) in front and the dog (2) turning to the front are replaced by the character data (1) and (2) corresponding to the ROM address “M = 0” shown in FIG. As shown in FIG. 9, the liquid crystal display 18 is alternately displayed every one second, and the sound effect data “Woo” corresponding to the ROM address “M = 1” is read out to the CPU 11 and the amplifier circuit. 1
It is generated and output from the speaker 20 via 9.

On the other hand, as shown in FIG. 9, while the character data corresponding to the ROM address "M = 1" is displayed, as shown in FIG.
When it is placed in a short distance of 10 cm or less from 10 cm in front of the light emitting element 14 b and the light receiving element 15 b in a non-contact manner, the signal reach distance is A area (≦ 40 cm) → B area (≦ 30 c
m) → C area (≦ 20 cm) → D area (≦ 10 c
m) → ... The infrared light emitted and output from the light emitting element 14b after being repeatedly changed is in the area A (≦ 40 cm) to
When the infrared light up to the area C (≦ 20 cm) is reflected by the user's hand and is received by the light receiving element 15b, the infrared drive signal c of the shortest distance (≦ 20 cm) is reflected and received. The counter value "1" by the quaternary counter 14c
0 "is read by the CPU 11 (step A4 → A
5).

Then, it is compared with the counter value already set in the counter value register 16c in the RAM 16 and it is judged whether they match or not (steps A6 and A).
7). In this case, since the counter value "11" is set in the counter value register 16c in the RAM 16 at the time of receiving the light emission reflection signal associated with the previous non-contact operation by the user, it is determined that the counter values do not match. Judged,
The counter value “10” corresponding to the shortest light receiving distance (≦ 20 cm) read from the quaternary counter 14c is set in the counter value register 16c (step A7).
→ A8).

Thereafter, the light emitting element 14b of the transmitter 14 again outputs the infrared light emission signal whose signal reaching distance is changed, so that the area A (.ltoreq.40 cm) to the area C (.ltoreq.20 cm). Infrared light of 2 from 10 cm
When the light is received by the light receiving element 15b after being reflected again by the user's hand placed in a short distance of 0 cm or less without contact, the counter value "10" corresponding to the light receiving shortest distance (≤20 cm).
Is read from the quaternary counter 14c and compared with the counter value already set in the counter value register 16c in the RAM 16 (steps A4 → A5, A6).

In this case, since the counter value register 16c in the RAM 16 is set to the counter value "10" corresponding to the shortest light receiving distance (≤20 cm) at the time of the previous reception of the light emission reflection signal, ROM corresponding to the counter value "10" when it is determined that the counter values match
The address "M = 2" is set in the ROM address register M in the RAM 16 (steps A7 → A9).

As a result, the ROM address "M =
A set of character data (1) (2) (see FIG. 2) corresponding to "2" is read from the ROM 13 to the CPU 11, and the character data (1) (2), that is, the hand in front of the kennel Each character data of the dog (1) standing and the dog (2) holding out his tongue corresponds to the character data (1) (corresponding to the ROM address “M = 1” shown in FIG. 9 above. Instead of 2), as shown in FIG. 10, it is displayed alternately on the liquid crystal display unit 18 every second, and the ROM address "M =
The sound effect data “One One” corresponding to “2” is the CPU 11
And is generated and output from the speaker 20 via the amplifier circuit 19.

When the "end" key 12d is operated, "0" is set in the light emission flag register T in the RAM 16 and is incorporated in the transmission circuit 14a of the transmission section 14 4
The supply of the clock signal CK to the advance counter 14c is stopped (step A10 → A11). As a result, the output of infrared light from the transmitter 14 is stopped.

Further, the counter value set in the counter value register 16c in the RAM 16 is cleared (step A12). Therefore, according to the electronic notebook with the above configuration, in front of the transmitting unit 14 and the receiving unit 15,
By locating the user's hand at an arbitrary distance in a non-contact manner, the reflected light of the infrared light, which is output by sequentially changing the reaching distance from the transmitting unit 14, is received by the receiving unit 15, and the received light is the shortest. The non-contact operation distance is detected according to the counter value which is the light emission drive information at the time of infrared light emission corresponding to the distance, and RO
By selectively setting the value of the M address register M, a plurality of types of dog character data and their sound effect data, which are pre-stored in the ROM 13 and have different movements, such as a turning dog and a dog, are selected. In addition to displaying on the liquid crystal display unit 18 and the corresponding sound effects are also generated from the speaker 20, it is not necessary to issue a command by mechanical operation such as key input as in the conventional image display device, and the user's hand does not have to do so. With the gesture-like command based on the movement of, the character data of the turning dog or the dog you are handling can be selectively displayed, and the fun of character display can be greatly improved.

Further, in the electronic notebook of the embodiment, in the light emission drive circuit in the transmitting unit 14, the reach distance of the infrared light emission signal in the electronic pet mode is set separately from the signal reach distance (5 m) in the notebook mode. Since the reachable distance is limited to 40 cm at the longest, there is no risk of malfunction due to reflection on the wall of the building or the like except for the non-contact operation by the user.

[0053]

As described above, according to the present invention, a wireless signal such as infrared light from the transmitting means whose output is changed by the transmitting output changing means is reflected by the operation of the user who does not touch the apparatus main body, When the reflection signal is received by the receiving means, the distance to the signal reflection position detected based on the change state of the transmission output corresponding to the reception of the reflection signal, that is,
At least one image data of a plurality of types of image data stored in advance in the image data storage means is selected and displayed by the display means in accordance with the non-contact operation distance of the user. A character image of a dog or the like can be selectively displayed according to a gesture command.

Therefore, the displayed animal or the like can be displayed with a gesture-like operation feeling that the command or intention is actually transmitted to the animal or the like by a hand gesture to move the animal without performing a mechanical key input operation. It is possible to move or change the image data and display it.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an electronic circuit of an electronic notebook equipped with an image display device according to an embodiment of the present invention.

FIG. 2 is a diagram showing displayed image data and its sound effect data stored in advance in a ROM of the electronic notebook.

FIG. 3 is a circuit diagram showing a configuration of a transmission unit of the electronic notebook.

FIG. 4 is a first diagram of an electronic pet mode of the electronic notebook.
~ Timing chart showing the output operation of the fourth level light emission drive signals a to d.

FIG. 5 is a diagram showing a configuration of a register provided in the RAM of the electronic notebook.

FIG. 6 is a flowchart showing the overall processing of the electronic notebook.

FIG. 7 is a flowchart showing an electronic pet mode process in the electronic notebook.

FIG. 8 is a diagram showing a character display state at the time of operating a “start” key associated with an electronic pet mode process in the electronic notebook.

FIG. 9 is a diagram showing a character display state when the non-contact operation distance x by the user associated with the electronic pet mode processing in the electronic notebook is 10 cm or less.

FIG. 10 is a diagram showing a character display state when the non-contact operation distance x by the user associated with the electronic pet mode processing in the electronic notebook is longer than 10 cm and 20 cm or less.

[Explanation of symbols]

11 ... CPU (Central Processing Unit), 11a ... Timer, 11
b ... Oscillation circuit, 11c ... Frequency divider circuit, 12 ... Key input section,
12a ... Character keys and numeric keys, 12b ... "Mode" key, 12c ... "Start" key, 12d ... "End" key, 13 ... ROM, 14 ... Transmitting section, 14a ... Transmitting circuit,
14b ... Light emitting element, 14c ... Quadrature counter, 14d ... Decoder, a ... First level light emission drive signal, b ... Second level light emission drive signal, c ... Third level light emission drive signal, d ... Fourth
Level light emission drive signal, 15 ... Receiving section, 15a ... Receiving circuit, 15b ... Light receiving element, 16 ... RAM, 16a ... Notebook data register, 16b ... Display register, 16c ... Counter value register, N ... Mode flag register, M ... ROM
Address register, T ... Emission flag register, P ... Notebook data pointer, 17 ... Display drive circuit, 18 ... Liquid crystal display unit, 19 ... Amplification circuit, 20 ... Speaker.

Claims (4)

[Claims] 1. An image data storage unit for storing a plurality of types of image data, a transmission unit for transmitting a radio signal, a transmission output changing unit for changing the transmission output of the radio signal by the transmission unit, and the transmission unit. At least one of a plurality of types of image data stored in the image data storage unit according to a reception result corresponding to the transmission output of the wireless reflection signal by the reception unit, the receiving unit receiving the reflection signal of the transmitted wireless signal. An image display device comprising: a display unit that displays one image data. 2. An image data storage unit for storing a plurality of types of image data, a transmission unit for transmitting a wireless signal, a transmission output changing unit for changing the transmission output of the wireless signal by the transmission unit, and the transmission unit. Receiving means for receiving the reflected signal of the transmitted wireless signal, and a signal based on the output change state of the transmitted output changing means of the received wireless reflected signal when the wireless reflected signal is received by the receiving means. Reflection distance detecting means for detecting the distance to the reflection position, and at least one of a plurality of types of image data stored in the image data storage means in accordance with the detection result of the distance to the signal reflection position by the reflection distance detecting means. An image display device comprising: a display unit that displays image data. 3. The transmission means comprises a plurality of transmission sections having different transmission outputs, and the transmission output changing means selectively operates the plurality of transmission sections. The image display device according to claim 2. 4. The image display device according to claim 1, wherein the wireless signal is infrared light.