JPH05252566A - Remote control key pad - Google Patents

Abstract

PURPOSE:To guide a key operation, and to enable the key operation in a dark room by reading the key data of the data base of a storage part by a key input, judging the validity of the next key input, and sequentially and individually turning-on respective key displays necessary for the operation. CONSTITUTION:A judging part 13 reads the data of the data base of a storage part 16 based on the key input, judges the validity of the next key input, indicates it at a key display part 12, judges the key to be pressed next based on the state of the pressed key, and successively and individually turns-on respective key displays. For example, in the case of the remote control key pad of a television, when a power turning on/off key is inputted, a mode key (television, BS, and video) capable of being inputted next is turned on. At the time of inputting a television key, the other mode keys are turned off, and only the television key is turned on. Then, the key related with a channel selection is turned on, and when the channel selection key is inputted, a volume increase and decrease, noise elimination, and sound switching key is turned on.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control keypad (transmission unit), and to a device which illuminates a necessary key display.

[0002]

2. Description of the Related Art Infrared remote controls are used in televisions, home videos, air conditioners and the like. FIG. 4 is an external view of a conventional remote control keypad. Reference numeral 1 is a remote control keypad in which an infrared light emitting portion 2 is arranged on the 1 side, a key 3 is arranged on the upper surface, and a power-on / off key 5 is particularly easy to understand. For example, when watching a TV, as a basic operation, press the power on / off key 5 on the remote control keypad to turn on the TV, then press the channel switching key, and if necessary, press the volume up / down key. Manipulate. However, recent TVs have many functions, and the number of keys provided on the remote control keypad has increased in AV-type TVs to which many peripheral devices have been connected, and operations have been limited to basic operations. Where the key you need is
Also, it is difficult to understand in what order they should be pressed. There is also a problem that the characters printed on the remote control keypad cannot be read when used in a dark place.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a remote control keypad in which key displays necessary for operation are individually and sequentially illuminated.

[0004]

In order to achieve the above object, the key data in the database of the storage unit is read based on the key input, and the key input and the next key input are determined, and the key input and the next key input are performed. The storage unit stores a valid relationship in a database and stores it, and the key display unit displays the signal from the discriminating unit.

[0005]

With the above configuration, the discriminating unit reads out the data of the key in the database of the storage unit based on the key input, discriminates whether the next key input is possible, and instructs the key display unit to press the key. Based on the state of the key, the key that may be pressed next is determined, and each key display is sequentially illuminated.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A remote control keypad according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is an external view of a remote control keypad according to the present invention. Reference numeral 1 is a remote control keypad in which an infrared light emitting portion 2 is arranged on the 1 side, a key 3 is arranged on the upper surface, and a power-on / off key 5 is particularly easy to understand. Reference numeral 4 denotes a key display when the key itself is emitting light. Figure 2
FIG. 3 is a block diagram showing a configuration of a remote control keypad according to the present invention. Reference numeral 11 is a key input unit for providing keys in a matrix to identify pressed keys, and 12 is a discriminating unit 1
It is a key display section that individually emits each key display based on the judgment of 3. Reference numeral 14 is a memory unit for storing a code corresponding to the key, and 16 is, for example, a power on / off key and a mode key (TV,
This is a storage unit which stores codes (corresponding to each key) in a data table format in association with BS (satellite broadcast), video 1, video 2) and the like. Reference numeral 15 is an output unit for inputting a code stored in the memory unit 14 and modulating and outputting a carrier wave based on the code, and 13 is a data table stored in the storage unit 16 based on the state of a pressed key. Is a discriminator that determines which keys may be pressed next, controls the display of each key in sequence, and controls each part.

The operation will be described with an example of a remote control keypad of a television. FIG. 3 is a flow chart for explaining the key operation guidance. Wait for key input of power on / off key (STP1). When the power on / off key is pressed, the next mode key (TV, BS, video) key is lit (STP2). When the TV key of the mode keys is input (STP3), the other mode keys are turned off and only the TV key is turned on (STP4). Next, a key relating to channel selection of the television, such as a ten key and a channel key, is turned on (STP5). The input of the channel selection key is waited (STP6), and when there is an input, the volume increase / decrease, mute, and voice switching keys are lit (STP7). Various operations such as channel switching are performed with the lit keys (STP8). Wait for key input of power on / off key (STP9), and turn off all keys when there is key input of power on / off key (STP)
10). When the BS key of the mode keys is pressed (STP20), the other mode keys are turned off and only the BS mode key is turned on (STP21). The following is in accordance with the mode of the television, so its explanation is omitted.

[0008]

According to the present invention, the key operation of the complicated remote control keypad can be guided, and the remote control keypad can be operated even in a dark room, so that the usability of the remote control keypad can be improved.

[Brief description of drawings]

FIG. 1 is an external view of a remote control keypad according to the present invention.

FIG. 2 is a block diagram showing a configuration of a remote control keypad according to the present invention.

FIG. 3 is a flowchart illustrating guidance of key operation.

FIG. 4 is an external view of a conventional remote control keypad.

[Explanation of symbols]

 1 Remote control keypad 2 Infrared ray emitting section 3 Keys 4 Light emitting key display 5 Power on / off key 11 Key input section 12 Key display section 13 Control section 14 Memory section 15 Output section

Claims (1)

[Claims] 1. A key input unit having a key matrix, a memory unit storing a code corresponding to a key of the key input unit, a code corresponding to the key input is read from the memory unit, and a carrier wave is modulated by the code. In the remote control keypad consisting of an output unit for outputting, the key data in the database of the storage unit is read based on the key input, and the determination unit that determines whether the next key input is possible and the relationship between the key input and the next key input possible A remote control keypad comprising a storage unit for storing a database and a key display unit for displaying a signal from a discriminating unit.