JPH0630485A - Remote control device - Google Patents

Abstract

(57) [Abstract] [Object] The present invention relates to a remote control device that greatly reduces the number of operation keys of a transmitter and improves operability.
The purpose is to allow the user to easily select a function on the screen without looking at his / her hand, and to flexibly cope with the addition of the function of the controlled device. The transmitter 1 is provided with a CPU circuit provided with a position detecting means 19 for detecting the pressed coordinates of the operation key 13 having a two-stage structure and a coordinate data transmitting means 20 for transmitting the detected coordinates. The coordinate data receiving means 16 for receiving the signal transmitted from the transmitter by the remote control receiving circuit 9 and determining coordinate data from the signal, the display control means 18 for displaying a function selection screen, and the displayed function selection A CPU circuit 10 having a selection means 17 for selecting a function from a screen is provided. As a result, the number of operation keys can be significantly reduced, and it is possible to flexibly cope with the addition of the function of the controlled device by increasing the function selection screen without changing the transmitter.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device for controlling a controlled device such as a television receiver by a remote control signal.

[0002]

2. Description of the Related Art In a conventional remote control method, a specific code is assigned to one operation key of a transmitter, and processing is performed according to the limited code received. The above remote control method will be described below with reference to the drawings.

FIG. 4 is a block diagram of a conventional remote control device, and 12 is a transmitter for giving an instruction to the controlled device 1.
2 is an antenna, 3 is a tuning circuit, 4 is a voice demodulation amplification circuit,
Reference numeral 5 is a luminance amplification color demodulation circuit, 7 is an audio output circuit, 8 is a video output circuit, 9 is a remote control receiving circuit, and 10 is a remote control receiving circuit 9. The tuning circuit 3 and the display circuit 11 are controlled according to the key data input from the remote control receiving circuit 9. It is a CPU circuit. Reference numeral 13 is an operation key, 14 is a CPU circuit for converting the key data detected by the operation key 13 into a code, and 15 is a transmission circuit.
The operation of the remote control device configured as described above will be described below using an example.

FIG. 6 is a detailed diagram of the transmitter 12, and FIG. 5 is an explanatory diagram of a data code 1 list of transmission codes in a commercial television. As an example, if you want to select channel 1,
By pressing the "1" key among the "0-12" keys of the transmitter 12, the data code "10" selected by the CPU circuit 14 is transmitted by the transmission circuit 15, and the transmitted code is received by the remote controller. The circuit 9 receives the signal, and the channel selection circuit 3 issues an instruction for selecting the television broadcast 1 channel to be received. In this way, the data code corresponds to the key of the transmitter in a one-to-one manner, and the controlled device performs processing according to the limited code.

[0005]

However, in the above-mentioned configuration, it is necessary to increase the number of operation keys of the transmitter in response to the increase in the number of functions of the controlled device, and the transmitter is downsized. In that case, the operability was extremely poor because the operation key of the transmitter had to be observed carefully at the time of the operation. In addition, there is a drawback that the key of the transmitter and the data code have a one-to-one correspondence and cannot be used for controlled devices having different functions.

In view of the above problems, the present invention reduces the number of operation keys of the transmitter, and it is not necessary to look at the transmitter, and one type of transmitter can be applied to controlled devices having any function. It is intended to provide an intended remote control device.

[0007]

In order to solve the above problems, a remote control device of the present invention has a transmitter having a first contact and a second contact having a two-stage structure with the first contact. Coordinate data receiving means for transmitting coordinate data from this transmitter and determining coordinate data from the coordinate data signal received by the coordinate data receiving circuit; and display control means for displaying a function selection screen based on the obtained coordinate data. , CP having selection means for performing function selection from the displayed function selection screen
It has a U circuit and a display circuit for displaying the selection screen.

[0008]

With the above-described structure, the present invention can be controlled by one type of transmitter as long as the controlled device has any function as long as it has the above structure. Further, since the transmitter only detects and transmits the coordinates, it does not need to have a large number of keys according to the functions.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A remote control device according to a first embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a remote control device.
Is a transmitter that gives an instruction to the controlled device 1. 2 is an antenna, 3 is a channel selection circuit, 4 is an audio demodulation amplification circuit, 5 is a luminance amplification color demodulation circuit, 7 is an audio output circuit, 8 is a video output circuit, 9 is a remote control receiving circuit, 10 is a remote control receiving circuit 9
The coordinate data receiving means 16 for controlling the tuning circuit 3 and the display circuit 11 according to the key data inputted by the coordinate data receiving means 16 for judging the coordinate data from the received coordinate data signal, and the receiving means 16.
It is a CPU circuit having a display control means 17 for displaying a function selection screen based on the obtained coordinate data, and a selection means 18 for selecting a function from the displayed function selection screen. 12 is a transmitter, 13 is an m number of key scan output lines and n number of key scan input lines, and has m × n first contact points 21 at the intersections thereof, and a two-stage structure with the first contact points 21. The operation key having the second contact 22 which is set to 14 converts the key data detected by the operation key 13 into a code, and when the first contact 21 is ON, the position pressed by the key scan is coordinated. And a CPU circuit having position detecting means 19 for detecting when both the first and second contact points 22 are ON, and coordinate data transmitting means 20 for transmitting the detected coordinate data, and 15 is a transmitting circuit. is there. The operation of the remote control device configured as described above will be described below.

FIG. 2 is a detailed view of the operation key 13. FIG. 3 is an example of a display screen displayed by the display control means 17. For example, when the user touches the first contact 21 of FIG. 2 with the operation key 13, the position detecting means 19 of FIG. 1 detects the coordinates (0, 1) and the coordinate transmitting means 20 transmits the coordinate. When the remote control receiving circuit 9 receives the above signal, the coordinate data receiving means 16 recognizes the coordinate data, the display control means 17 displays the channel menu screen of FIG. 3, and the coordinate data is (0, 1). Then, the selecting means 17 selects "TV2ch" in FIG. Here, if it is recognized that the second contact 22 of the operation key 13 is also turned on, the selection means 17 "TV2ch"
Select and execute. Now, on the screen TV 2ch
Is displayed. Here, in the transmitter 12, the first contact 2
If the number of contact points of 1 is plural, such as ,, 3
The coordinates (0, 2) are detected by obtaining two center of gravity. Further, when both the first contact and the second contact are turned on, the coordinate value detected when only the first contact 21 before the first contact is turned on,
In order to prevent the detected coordinate values from changing due to the strength of the pushing force, when the above two coordinate values change,
Looking at the detected time of the coordinate value detected when only the first contact 21 is turned on, if the value is 140 (ms) or more, the coordinate value when both the first contact and the second contact are turned on Ignore. As described above, by providing the first contact 21 and the second contact 22, selection and execution can be surely performed, and even if the controlled device has any function, the function display screen can be simply increased according to the function. Only one type of transmitter can be selected and executed.

If the coordinate value detected when only the first contact is ON is 140 (ms) or longer, the coordinate value when both the first contact and the second contact are ON is ignored. However, the time range may be set freely.

[0013]

As described above, according to the present invention, the transmitter is provided with the CPU circuit having the position detecting means and the coordinate data transmitting means, and the controlled device selects the coordinate data receiving means, the display control means. By providing the CPU circuit having the means, it is not necessary to associate a data code with each operation key, and therefore the number of operation keys can be greatly reduced,
The user can easily select a function from the function selection screen without looking at the hand. In addition, even if the function of the controlled device is added, the function display screen can be increased without changing the transmitter, and the function can be flexibly dealt with, and the practical effect thereof is great.

[Brief description of drawings]

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

FIG. 2 is a detailed view of operation keys for explaining the first embodiment.

FIG. 3 is an example view of a function selection screen for explaining the first embodiment.

FIG. 4 is a functional block diagram showing a configuration of a conventional remote control device.

FIG. 5 is a commercial TV for explaining a conventional remote control method.
Data code illustration

FIG. 6 is a transmitter explanatory view for explaining a conventional remote control method.

[Explanation of symbols]

 1 Controlled Devices 10 and 14 CPU Circuit 11 Display Circuit 13 Operation Keys 16 Coordinate Data Receiving Means 17 Display Control Means 18 Selection Means 19 Position Detecting Means 20 Coordinate Data Sending Means

Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical indication H04N 5/00 A 9070-5C (72) Inventor Ayako Kadoma 1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. (72) Inventor Keiya Miyoshi 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor, Makoto Ishida 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (3)

[Claims] 1. A m-th key scan output line and a n key scan input line are provided, and m × n first contact points at the intersections thereof, and a first contact point having a two-stage structure. The operation key with two contacts and the position pressed by the key scan when the first contact is ON are detected as coordinates, and
Coordinate detecting means for detecting an input when both the first contact and the second contact are turned on, a transmitter having coordinate data transmitting means for transmitting the detected coordinate data, and a coordinate data signal sent from the transmitter. And a coordinate data receiving means for determining coordinate data from the received coordinate data signal, and a display for displaying a function selection screen based on the coordinate data obtained from the receiving means when the first contact is ON. Means, remote control having selection means for performing function selection from a function selection screen displayed by data obtained when both the first contact and the second contact are turned on, and a display circuit for displaying the function selection screen apparatus. 2. An m-key scan output line and an n-key scan input line are provided, and m × n first contacts are provided at their fulcrums, and the first contact has a two-stage configuration. In the operation key having the second contact, when the position pressed by the key scan by the coordinate detection means is detected using the X coordinate and the Y coordinate when the first contact is ON, the center of gravity of the pressed range 2. The remote control device according to claim 1, further comprising coordinate detection means for detecting one coordinate even when a plurality of keys are pressed by determining the above. 3. An m-key scan output line and an n-key scan input line are provided, and m × n first contacts are provided at their fulcrums, and the first contact has a two-stage structure. In the operation key having the second contact, the position detected by the key scan by the coordinate detecting means when the first contact is ON is detected using the X coordinate and the Y coordinate, and then the first contact and the second contact are detected. When both contacts are turned on, in order to prevent the first contact from changing due to the strength of the pushing force, the time during which one coordinate value detected by the coordinate detecting means is detected is measured, and the time length is measured. The remote control device according to claim 1, further comprising coordinate detection means for determining whether or not to transmit the detected coordinate value when both the first and second contacts are turned on.