JPH11327791A - Remote controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a remote controller capable of easily coping with increase and change of functions by a measure at the side of a main body equipment without changing the remote controller and operation of which coincides with intuitive sense and is easy. SOLUTION: A lens 21 and a light receiving part 22 both to receive scanned light of a CRT display 11 and an infrared ray emitting part 24 to transmit an infrared ray response signal back to a TV receiving part 1 at the moment that the scanned light is received by the light receiving part 22 are provided in the remote controller 2. A microcomputer 13 to calculate a position of an instructed point instructed by the remote controller 2 from time difference between generating time of a vertical synchronous signal of the CRT display 11 and the time when the response signal is received and an on-screen display control part 14 to display the pointer to indicate the operation screen and the instructed point on the CRT display 11 are provided in the TV receiver 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a remote control device, and more particularly to a remote control device that enables operation by a GUI (Graphical User Interface).

[0002]

2. Description of the Related Art Remote control devices which can operate consumer devices such as TVs, air conditioners, and video tape recorders from a remote place are widely used. Many of such remote control devices use infrared rays, ultrasonic waves, or the like, and are usually controlled by receiving a control signal from the remote control device side on the device body side. For this reason, there is a problem that the remote control device itself must be changed in terms of hardware or software with the addition or change of the function on the device body side. Further, in the case of the conventional remote control device, there has been a problem that the remote control device becomes complicated as the equipment is improved.

For example, in the case of a remote control device for a TV receiver, when the number of receivable channels increases, it is impossible to select a single channel by a conventional ten-key type channel selection method. It is inevitable that the operation becomes complicated with multi-functionality, such as the need to continuously press a key. Furthermore, as the number of models used increases,
There was a problem that the number of remote control devices also increased.
For example, since many electric appliances have their own remote control devices, the number of remote control devices in each home increases, and there is a problem that selection is troublesome or lost in each operation. .

In order to avoid this, a graphic operation screen is displayed on a CRT display, and a user selects a picture using a mouse joystick or the like and switches the selection by using a GUI (Graphical User Screen).
Interface) has recently been used.

However, in the case of conventional mouse joysticks and various pointing devices based on them, the position of the picture and the operation are not always intuitively coincident with each other. In many cases, it is also difficult to move the pointer to the user, and there is a problem that a user who cannot perform the operation must learn the operation by practicing the movement of the pointer on the screen and the physical movement of the pointing device. In addition, in operation, there is a trouble that the user must always recognize the position of the pointer on the screen.

Further, the conventional scanning line reading type pointing device is mainly used only for a game application as a wired handgun type controller, and only a TV set compatible with the standard NTSC system can be used. Met. Therefore, in order to convert this to a remote control device, it is necessary to provide a wireless system and to deal with an image that is deflected differently from the NTSC system such as EDTV, progressive system, and MUSE.

[0007]

As described above, the conventional remote control device has a problem that the pointing device must be changed in accordance with the increase or change of the function of the device, and at the same time, the operation becomes complicated. Was. G to avoid this
Although there is a method of selecting a position on the screen using the UI, there is a problem that the operation is not always easy.

The present invention solves this problem by a relatively simple method, and can easily cope with an increase or change in the function by processing on the main unit without changing the pointing device, and the operation is intuitive. It is an object of the present invention to realize a remote control device that is easy according to a sense.

[0009]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a main unit having a CRT display and a remote instruction for designating a point on the CRT display as a designated point from a place remote from the main unit. A remote control device comprising: a scanning light receiving unit for receiving scanning light of the CRT display; and a light receiving response signal at a moment when the scanning light receiving unit receives the scanning light. The main unit receives the light receiving response signal from the responding means, the generation time of the vertical and / or horizontal synchronizing signal of the CRT display, and the receiving means An indication position detection means for obtaining a position of the indication point indicated by the remote indication means from a time difference from a time at which a response signal is received; and Operation screen display means for displaying an operation screen composed of pictures and / or symbols and / or characters on an RT display; and an operation screen indicated by the operation screen display means for indicating the position of the designated point obtained by the designated position detecting means. And control means for performing processing corresponding to the position of the object.

In a remote control device comprising a main unit having a CRT display and a remote instruction unit for designating a point on the CRT display as a designated point from a place remote from the main unit, the remote instruction unit comprises:
Scanning light receiving means for receiving the scanning light of the CRT display; synchronization time receiving means for receiving a signal indicating the generation time of the vertical and / or horizontal synchronization signal of the CRT display sent from the main unit; Pointed position detecting means for obtaining the position of the point indicated by the remote pointing means from the time difference between the occurrence time of the vertical and / or horizontal synchronization signal received by the receiving means and the time when the scanning light receiving means receives the scanning light. Operating means including a deciding means for deciding a current designated point and a scroll means for scrolling a screen on the CRT display; an operation signal corresponding to the operation content of the operating means; and the designated position detecting means. Responding means for transmitting a designated position signal indicating a designated position to the main unit, the main unit includes:
Synchronizing time transmitting means for transmitting a signal indicating the generation time of the vertical and / or horizontal synchronizing signal of the CRT display; receiving means for receiving a signal from the responding means; and a picture and / or symbol on the CRT display. Operation screen display means for displaying an operation screen composed of characters; and / or processing corresponding to an operation signal received by the reception means; and a position of the designated point is displayed on the operation screen from a designated position signal received by the reception means. Control means for performing a process determined by a position on the operation screen indicated by the means.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a remote control device according to the present invention will be described in detail with reference to the accompanying drawings. The basic idea of the present invention is that an OSD (On Screen Diode) is displayed on a CRT screen.
splay) to graphically display the operation functions,
(Graphical User Interface) is operated so that the operation function is provided on the device main body side having the CRT screen, and the burden of increasing or changing the function is not imposed on the remote control device side.

The GUI is a character-based system (C) for controlling a computer or the like by inputting commands from a keyboard.
It refers to an interface that allows the user to interact with the computer using pictures and graphs instead of UI). Normally, operations in the GUI are performed by a method of moving a pointer on a screen on a picture or a graph using a mouse or the like and moving a switch attached to the mouse. In the present invention,
Improvements have also been made in such operations.

FIG. 1 is a block diagram showing the configuration of an embodiment of the remote control device according to the present invention. FIG. 2 shows a TV
FIG. 3 is a diagram showing an example of an OSD display for channel selection, FIG. 3 is a diagram showing an example of a pointer display, and FIG. 4 is an explanatory diagram of a basic operation and a position determination method of the remote control device.

In FIG. 1, reference numeral 1 denotes a TV receiver as a main body of the apparatus, 11 denotes a CRT display, 12 denotes an infrared light receiving section, 13 denotes a microcomputer for performing position calculation and signal analysis, and 14 also includes a microcomputer. OSD control unit. Parts in the TV receiver 1 that are not directly related to the present invention are omitted in the figure. 2 is a remote control device, 21 is a lens, 22 is a light receiving section, 23 is a microcomputer for remote control, 2
Reference numeral 4 denotes an infrared light emitting unit such as an LED.

The operation of the remote control device will be briefly described along with the TV channel selection operation. The remote control device 2 has a shape that is easy to fit in the hand, and for example, a power button, a determination button, and the like are provided in the same manner as a conventional remote control.

When the enter button of the remote controller 2 is pressed toward the TV receiver 1 for TV selection, a corresponding infrared signal is transmitted from the infrared light emitting unit 24 and received by the infrared light receiving unit 12 of the TV receiver 1. Then, the signal is recognized by the microcomputer 13, whereby a channel selection display as shown in FIG. 2 appears on the CRT display 11. When the remote control device 2 is pointed, a pointer is displayed at the pointed position as shown in FIG. 3. When a pointer (not shown) is pressed when the pointer is on a target channel, the station is selected. In the channel selection display of FIG. 2, a channel index or the like is displayed on a divided screen, or icons such as channel numbers are arranged in a matrix so that channel selection can be performed. The portion that does not fit on the screen can be dealt with by, for example, vertically scrolling by dragging while pressing the enter button.

This method takes advantage of the fact that the screen is not always turned on in the case of a CRT display that forms an image by scanning a beam.
It is based on the idea that by reading the brightness of an arbitrary place on the screen and knowing the time, position information of the place can be calculated.

When the remote control device 2 points to the CRT display 11 of the TV receiver 1, the CRT display 11
The lighting brightness at an arbitrary position above the lens 2 of the remote control device 2
The light is condensed at 1 and is received by the light receiving unit 22. When the remote control microcomputer 23 detects the light reception of the light receiving unit 22, it drives the infrared light emitting unit 24 and immediately sends a light receiving response signal to the TV receiver 1.

Upon receiving the light receiving response signal, the infrared light receiving section 2 of the TV receiver 1 sends a signal to the microcomputer 13, and the microcomputer 13 calculates a position on the CRT display 11 from the timing of the light receiving response signal.

As shown in FIG. 4, the microcomputer 13 calculates the position indicated by the remote controller 2 by measuring the timing at which the CRT beam starts scanning from the upper left of the screen from the vertical synchronization signal (Vsync). The time at which the point indicated by the device 2 shines is known from the light receiving response signal. The microcomputer 13 counts the number of horizontal synchronizing signals (Hsync) after the vertical synchronizing signal, calculates the value on the vertical axis from the count value when the light receiving response signal is received, and further from the horizontal synchronizing signal to the time when the light receiving response signal is received. The position of the horizontal axis can be known from the time difference.

As can be seen from the above description, the display of the pointer on the CRT display 11 in the present invention is immediately displayed at the position pointed by the remote controller 2. Therefore, unlike a pointer display with a personal computer mouse, the pointer is not moved to the designated position by moving the cursor from the previously displayed position, so that the operation is easier and the display decision is shorter. Can be done on time.

FIG. 5 shows a flowchart of one embodiment of the detection of the indicated position by the microcomputer 13. In this embodiment, a vertical synchronization signal (Vsync) and a horizontal synchronization signal (Hsync) are used.
This corresponds to the case where the designated position is detected using c). First, in step 101, it is determined whether or not there is a vertical synchronization signal (Vsync). If there is a vertical synchronization signal (Vsync), the count value of the horizontal synchronization signal (Hsync) counter is cleared (step 102), and the horizontal timer is started (step 103). Next, the remote control device 2
It is determined whether or not the light receiving response signal has been input (step 104). Here, if no light receiving response signal has been input, the process returns to step 101.

In step 101, the vertical synchronizing signal (Vsyn)
If c) does not exist, the process proceeds to step 105, where it is determined whether or not there is a horizontal synchronization signal (Hsync). If there is no horizontal synchronization signal (Hsync), step 1
Go to 04. If there is a horizontal synchronization signal (Hsync), the process proceeds to step 105, where the horizontal synchronization signal (Hsync) is output.
The count value of the count counter is incremented by one, and the horizontal timer is immediately cleared and started (step 107), and the process proceeds to step 104.

In step 104, when a light receiving response signal is input, the counting of the horizontal synchronization signal (Hsync) counter and the counting of the horizontal timer are stopped (step 108). Then, the coordinates of the vertical axis are calculated from the count value of the horizontal synchronization signal (Hsync) counter (step 109). Further, the coordinates of the horizontal axis are calculated from the value of the horizontal timer (step 110). When the coordinates of the vertical axis and the horizontal axis are obtained in this manner, the OSD control unit 14 causes the pointer to be displayed as shown in FIG. 3 (step 111). Thereafter, step 10
Return to 1.

The microcomputer 13 recognizes the designated position on the CRT display 11 in this way, displays a pointer, and when the determination button of the remote control device 2 is pressed in this state,
The station at that position is selected.

FIG. 6 shows a flowchart of another embodiment of the detection of the indicated position by the microcomputer 13. This embodiment corresponds to the case where the pointing position is detected using only the vertical synchronization signal (Vsync). First, in step 201, it is determined whether or not there is a vertical synchronization signal (Vsync). If there is a vertical synchronization signal (Vsync), a vertical timer is started (step 202). Next, it is determined whether or not a light reception response signal of remote control device 2 has been input (step 203). Here, if no light receiving response signal has been input, the process returns to step 201.

In step 203, when the light receiving response signal is input, the counting of the vertical timer is stopped (step 204). Thereafter, the time from the generation of the vertical synchronization signal (Vsync) is obtained from the current value of the vertical timer, and the coordinates are calculated (step 205). As a result, when the coordinates are obtained, the OSD control unit 14 displays the pointer as shown in FIG. 3 (step 206). Thereafter, the process returns to step 201. Since the coordinate position determination method as described above determines the coordinate position specified based on the time from the synchronization signal, the coordinate position can be determined in the same manner even if the deflection method is different. . The detection of the synchronization signal can be easily detected from the deflection circuit in the TV.

FIG. 7 shows a detailed block diagram of remote control device 2 of the present embodiment. 21 is a lens, 22 is a light receiving unit,
Reference numeral 23 denotes a remote control microcomputer, reference numeral 24 denotes an infrared light emitting unit, and an operation unit 25 is provided with a power button, an enter button, a jog dial, and the like.

FIG. 8 is an external view of one embodiment of the remote control device 2. In FIG. 8, reference numeral 21 denotes a lens; 26, a power switch for turning on / off the power; 27, a muting switch for silencing a TV sound; and 28, a decision switch for determining a designated point.

FIG. 9 is a block diagram showing a remote controller 2 according to another embodiment of the present invention. FIG. 7 shows this embodiment.
The difference from the above is that the transmission to the TV receiver 1, which is the main body, is performed by a radio frequency signal. Therefore, the antenna 30 is provided instead of the LED of the infrared light emitting unit. Correspondingly, the infrared light receiving section of the TV receiver 1 becomes a wireless receiver.

FIG. 10 is a block diagram of still another embodiment of the remote control device 2. This embodiment is different from the one shown in FIG. 7 in that it has an infrared receiving section 31 and receives a vertical synchronizing signal (Vsy) from the TV receiver 1 which is the main body.
nc) (or the timing of the horizontal synchronizing signal) is transmitted by an infrared signal, and the time difference from the input of the scanning light from the pointing coordinates received by the light receiving unit 22 is calculated by the microcomputer of the microcomputer 23 for remote control.
That is, the result is transmitted from the infrared light emitting unit 24 to the TV receiver 1 as a signal.

FIG. 11 is a block diagram of still another embodiment of the remote controller 2, in which the apparatus of the type shown in FIG. 10 performs transmission to the TV receiver 1 by a radio frequency signal. FIG.
In the example of FIG. 0 and FIG. 11, the infrared receiver 31 may be replaced with a wireless receiver to receive the timing of the vertical synchronization signal (Vsync) from the TV receiver 1 as a wireless frequency signal.

In the above description, the OSD display on the CRT display 11 of the TV receiver 1 has been described as a channel selection display. However, not only the operation of the TV receiver 1 but also the operation of an electronic device having a device control signal terminal connected to the TV receiver 1 can be performed by the GUI on the CRT display 11 of the TV receiver 1. is there.

FIG. 12 shows an example of such a case, in which a videocassette recorder 3 is connected to a TV receiver 1 and an OSD display for its operation is displayed on a CRT display 11.
The state shown above is shown. According to such a method, a plurality of devices are connected to the TV receiver 1 and the TV
It is also possible to centrally perform all the operations of these devices using the GUI of the receiver 1.

As is clear from the above description, according to the present invention, 1) the main parts of the functions are provided on the TV receiver side, and control is performed by GUI operation, whereby the number of buttons on the remote controller side can be reduced. 2) Since the movement of the remote control device and the movement of the pointer on the CRT display have a linear relationship, the operation is facilitated. 3) Since information is transmitted from the remote controller to the TV receiver side by infrared light or radio frequency, connection work is unnecessary, and there is no restriction on the operation of the remote controller. 4) Connect other electrical equipment to the TV receiver and
By operating by the UI method, all the operations of the connected electric devices can be performed by the same remote control device,
The remote control device can be unified. 5) Even if the TV receiver has a different deflection system, it can be easily handled only by modifying the calculation method of the indicated position. And other advantages can be achieved.

[0036]

As described above, according to the first aspect of the present invention, there is provided a main unit having a CRT display, and remote indicating means for indicating a point on the CRT display as an indicating point from a place remote from the main unit. In the remote control device comprising: a remote instruction means, a scanning light receiving means for receiving the scanning light of the CRT display; and a response means for returning a light receiving response signal to the main unit at the moment when the scanning light receiving means receives the scanning light. The main unit comprises: a receiving means for receiving a light reception response signal from the response means;
Pointed position detecting means for determining the position of the point indicated by the remote pointing means from the time difference between the time at which the display vertical synchronization signal is generated and the time at which the receiving means receives the light receiving response signal,
Pictures and / or symbols and / or
Or an operation screen display means for displaying an operation screen composed of characters, and a control means for performing processing corresponding to which position of the operation screen indicated by the operation screen display means corresponds to the position of the designated point obtained by the designated position detection means. It is characterized by having. Thereby, it is possible to easily cope with an increase or change in the function by a treatment on the main device side in a relatively simple manner without changing the pointing device as the remote instruction means, and the operation is consistent with an intuitive feeling. An easy remote control device can be realized.

According to a second aspect of the present invention, the main unit comprises:
Pointer display means for displaying a pointer such as an arrow at the position of the designated point obtained by the designated position detecting means on the CRT display is provided. Thereby, the pointing position of the pointing device as the remote pointing means can be easily recognized, and the operation becomes easy.

According to the invention of claim 3 of the present invention, the display of the pointer by the pointer display determining means is not performed by moving the pointer displayed in advance on the CRT display with the cursor, but by the pointing point indicated by the remote pointing means. It is characterized by direct pointer display. This allows
The pointing device, which is a remote instruction unit, can be easily operated, and the determination can be made in a short time.

According to a fourth aspect of the present invention, there is provided a pointing device, which is a remote instruction means, comprising: a determination means for determining a current designated point; and a scroll means for scrolling an operation screen displayed by the operation screen display means. Means, the response means sends an operation signal corresponding to the operation content of the operation means to the main unit together with the light receiving response signal, and the main unit comprises operation signal recognition means for recognizing the operation signal, and the control means A process corresponding to the operation signal recognized by the operation signal recognition means is performed. As a result, the number of operation icons on the operation screen can be increased as much as possible, and functions can be easily added, and the operation can be further facilitated.

According to a fifth aspect of the present invention, there is provided a remote control device having a main unit having a CRT display and a remote instruction means for designating a point on the CRT display as an instruction point from a place remote from the main unit. A remote indication unit, a scanning light receiving unit for receiving scanning light of the CRT display, a synchronization time receiving unit for receiving a signal indicating a generation time of a vertical and / or horizontal synchronization signal of the CRT display sent from the main unit; Pointed position detecting means for obtaining the position of the point indicated by the remote pointing means from the time difference between the generation time of the vertical and / or horizontal synchronization signal received by the synchronization time receiving means and the time at which the scanning light receiving means receives the scanning light. Determining means for determining the current designated point and scroll means for scrolling the screen on the CRT display. Operating means, and a response means for transmitting an operation signal corresponding to the operation content of the operating means and a designated position signal indicating the designated position obtained by the designated position detecting means to the main unit. Synchronization time transmitting means for transmitting a signal indicating the generation time of the vertical and / or horizontal synchronizing signal, receiving means for receiving a signal from the responding means, and pictures and / or symbols and / or characters on a CRT display. An operation screen display unit for displaying an operation screen, a process corresponding to the operation signal received by the reception unit, and a position of the designated point from the designated position signal received by the reception unit, the position of the operation screen indicated by the operation screen display unit. And control means for performing a process determined according to the condition. Thereby, it is possible to easily cope with an increase or change in the function by a treatment on the main device side in a relatively simple manner without changing the pointing device as the remote instruction means, and the operation is consistent with an intuitive feeling. An easy remote control device can be realized, and the operation accuracy can be further improved.

According to a sixth aspect of the present invention, the response means is a light emitting means for emitting infrared light, and the receiving means is a light receiving means for receiving the infrared light emitted by the light emitting means. I do. The invention according to claim 7 of the present invention is characterized in that the responding means is a transmitting means for transmitting a radio signal, and the receiving means is a receiving means for receiving a radio signal transmitted by the transmitting means. The invention of claim 8 of the present invention is the invention of claim 5, wherein the synchronous time transmitting means is a light emitting means for emitting infrared light, and the synchronous time receiving means receives the infrared light emitted by the light emitting means. It is a light receiving means. According to a ninth aspect of the present invention, in the fifth aspect of the invention, the synchronous time transmitting means is a transmitting means for transmitting a wireless signal, and the synchronous time receiving means receives the wireless signal transmitted by the synchronous time transmitting means. It is a receiving means. As a result, since information is wirelessly transmitted from the remote control device to the TV receiver side, the trouble of cable connection is unnecessary, and the movement of the remote control device is not restricted.

According to a tenth aspect of the present invention, the operation screen display means has a function of displaying also an operation screen of another electric device connected to the main unit, and the other electric device is operated by an instruction of the remote instruction means. Operation is possible. Thereby, all the operations of the electric devices connected to the main device can be performed by the same remote control device, and the remote control devices can be unified.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a remote control device according to the present invention.

FIG. 2 is a diagram showing an example of an OSD display for TV channel selection.

FIG. 3 is a view showing an example of display of a pointer in the embodiment of FIG. 1;

FIG. 4 is an explanatory diagram of a basic operation and a position determining method of the remote control device according to the embodiment of FIG. 1;

FIG. 5 is a flowchart of an example of an indication position detection.

FIG. 6 is a flowchart of another embodiment of the indication position detection.

FIG. 7 is a detailed block diagram of an example of the remote control device of the present embodiment.

FIG. 8 is an external view of one embodiment of a remote control device.

FIG. 9 is a detailed block diagram of another embodiment of the remote control device.

FIG. 10 is a detailed block diagram of another embodiment of the remote control device.

FIG. 11 is a detailed block diagram of another embodiment of the remote control device.

FIG. 12 is a display example in a case where an operation of another electronic device connected to the TV receiver is performed by a GUI on a CRT display of the TV receiver.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... TV receiver, 2 ... Remote control device, 11 ... CRT display, 12 ... Infrared light receiving part, 13 ... Microcomputer, 14
... OSD control section, 21 ... Lens, 22 ... Light receiving section, 23 ...
Microcomputer for remote control, 24 ... infrared light emitting section, 25 ...
Operation unit 26 power switch 27 muting switch 28 decision switch 30 antenna 31
Infrared receiver.

Claims (10)

[Claims] 1. A remote control device comprising: a main unit having a CRT display; and a remote instruction unit for designating a point on the CRT display as a designated point from a place remote from the main unit. Scanning light receiving means for receiving the scanning light of the CRT display; and response means for returning a light receiving response signal to the main unit at the moment when the scanning light receiving means receives the scanning light. Receiving means for receiving a light receiving response signal from a responding means; and a remote instruction means for detecting a time difference between a time at which a vertical and / or horizontal synchronizing signal of the CRT display is generated and a time at which the receiving means receives the light receiving response signal. Pointing position detecting means for obtaining a position of the pointed point which has been pointed; a picture and / or a symbol on the CRT display; And / or an operation screen display unit for displaying an operation screen composed of characters, and a process corresponding to which position of the operation screen indicated by the operation screen display unit corresponds to the position of the designated point obtained by the designated position detection unit. A remote control device comprising: 2. The apparatus according to claim 1, wherein the main unit displays a pointer such as an arrow at the position of the designated point obtained by the designated position detecting means on the CRT display, and includes a pointer display determining means for determining the designated position of the pointer. The remote control device according to claim 1, further comprising: 3. The display of the pointer by the pointer display determining means does not move the pointer which is previously displayed on the CRT display, but directly displays the pointer at the designated point pointed by the remote pointing means. The remote control device according to claim 2, wherein the remote control device is operated. 4. The remote instruction means includes an operation means including a determination means for determining a current indication point and a scroll means for scrolling an operation screen displayed by the operation screen display means. An operation signal corresponding to the operation content of the operation means is sent to the main unit together with the light receiving response signal, the main unit includes operation signal recognition means for recognizing the operation signal, and the control means includes the operation signal recognition means 2. The remote control device according to claim 1, wherein the remote control device performs a process corresponding to the recognized operation signal. 5. A remote control device comprising: a main unit having a CRT display; and remote instruction means for designating a point on the CRT display as a designated point from a place distant from the main unit, wherein the remote instruction means comprises: Scanning light receiving means for receiving scanning light of the CRT display; synchronization time receiving means for receiving a signal indicating a generation time of a vertical and / or horizontal synchronization signal of the CRT display sent from the main unit; Pointed position detecting means for obtaining the position of the point indicated by the remote pointing means from the time difference between the occurrence time of the vertical and / or horizontal synchronization signal received by the receiving means and the time when the scanning light receiving means receives the scanning light. Determining means for determining the current designated point and scrolling of the screen on the CRT display. An operation unit including a roll unit; and a response unit that sends an operation signal corresponding to an operation content of the operation unit and a designated position signal indicating a designated position obtained by the designated position detection unit to the main body device. A main unit that transmits a signal indicating a generation time of a vertical and / or horizontal synchronization signal of the CRT display; a reception unit that receives a signal from the response unit; Operation screen display means for displaying an operation screen composed of symbols and / or characters; processing corresponding to the operation signal received by the receiving means; and the position of the designated point is determined from the designated position signal received by the receiving means. Control means for performing a process determined by a position on the operation screen indicated by the operation screen display means. Operating device. 6. The apparatus according to claim 1, wherein said response means is light emitting means for emitting infrared light, and said receiving means is light receiving means for receiving infrared light emitted by said light emitting means.
Or the remote control device according to claim 5. 7. The apparatus according to claim 1, wherein said response means is a transmission means for transmitting a radio signal, and said reception means is a reception means for receiving a radio signal transmitted by said transmission means. The remote control device according to item 1. 8. The synchronous time transmitting means is light emitting means for emitting infrared light, and the synchronous time receiving means is light receiving means for receiving infrared light emitted by the light emitting means. Item 6. A remote control device according to item 5. 9. The synchronous time transmitting means is a transmitting means for transmitting a radio signal, and the synchronous time receiving means is a receiving means for receiving a radio signal transmitted by the synchronous time transmitting means. Item 6. A remote control device according to item 5. 10. The operation screen display means has a function of displaying an operation screen of another electric device connected to the main body device, and can operate the other electric device according to an instruction of the remote instruction means. The remote control device according to any one of claims 1, 5, 8, and 9, wherein: