JPH05168065A - Remote control transmitter - Google Patents

Abstract

PURPOSE:To provide a compact remote control transmitter capable of remote- controlling plural electronic appliances and facilitating specifying the electronic appliance to be controlled. CONSTITUTION:A reception circuit 2 receives a remote control code from a remote control transmitter 1 attached to an electronic appliance 9. A comparator circuit 3 compares the code with the remote control code of a code memory circuit 4, and specifies the device specifying code of the coincided remote control code to be stored in a specification code memory circuit 5. Then the remote control code corresponding to the equipment specification code is transmitted. Thus, the operation of specifying the equipment is facilitated and equipment specification keys are eliminated and the remote control transmitter 1 is made compact.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a plurality of types of remote control codes for remotely controlling a plurality of electric devices, and by designating an electric device to be controlled, a remote control code corresponding to the designated electric device can be obtained. The present invention relates to a remote control transmitter for selecting and transmitting.

[0002]

2. Description of the Related Art Conventionally, a large number of electric appliances in the home have a remote control transmitter, and remote control can be performed by transmitting a remote control code composed of infrared rays or ultrasonic waves from the remote control transmitter. Has become. Especially A
The majority of V devices have remote control transmitters. However, in these remote control transmitters, since the method of the remote control code to be transmitted is different for each electric device and each manufacturer, the electric device must be an attached remote control transmitter individually corresponding to each electric device. It cannot be controlled remotely. That is, when a plurality of VTRs and TVs are in the home, it is necessary to operate the same number of remote control transmitters as those electric devices, which is troublesome. Such a situation has been solved by the appearance of a compatible remote control transmitter capable of remotely controlling a plurality of electric devices with a single remote control transmitter.

An example of this type of conventional remote control transmitter is shown in FIG. The code memory circuit 4 includes a plurality of electric devices 9
a, 9b ... Have a plurality of types of remote control codes corresponding to each of them, and the operation circuit 7 connects the electric devices 9a,
By designating any one of 9b ..., the device designating code of the remote control code of the designated electrical equipment 9a, 9b ... Is stored in the designating code memory circuit 5 from the control circuit 6. The device designation code is a code for identifying which electric device 9a, 9b, ... To which the plurality of types of remote control codes stored in the code memory circuit correspond. Further, when the control operation of the electric devices 9a, 9b ... Is input from the operation circuit 7, a remote control code corresponding to the input and corresponding to the device designation code is read from the code memory circuit 4 by the control circuit 6. ,
It is transmitted to the electric devices 9a, 9b ... By the transmission circuit 8.

That is, for example, the electric devices 9a, 9b ...
When the TV 9a and the VTR 9b are installed as the above, first, operate the operation circuit 7 of the remote control transmitter to set the T
When V9a is designated, the device designation code of the remote control code of the TV 9a is stored in the designation code memory circuit 5. Next, when the operation circuit 7 is operated to input a power-on instruction, a remote control code corresponding to the power-on of the TV 9a is transmitted, and the TV 9a receiving the remote-control code is powered on. Similarly, if the VTR 9b is designated, the remote control code corresponding to the VTR 9b is transmitted.

[0005]

However, in the above-mentioned conventional remote control transmitter, since the electric devices 9a, 9b, ... to be controlled are designated by the input operation to the operation circuit 7, this input operation is performed, for example. When the circuit 7 is provided with device designation keys (not shown) corresponding to the electric devices 9a, 9b ...
As many keys as b are required on the remote control transmitter, which hinders downsizing of the remote control transmitter. On the other hand, if each device designation key is provided with a plurality of functions, for example, the TV 9a is designated when one key is operated, and the VTR 9b is designated when simultaneously operated with another key. However, the operation to specify the device becomes complicated.

The present invention has been made to solve the above problems, and it is an object of the present invention to provide a compact remote control transmitter capable of remotely controlling a plurality of electric devices, easily specifying an electric device to be controlled. Has an aim.

[0007]

In a remote control transmitter according to the present invention, a code memory circuit holds a receiving circuit for receiving a remote control code from another remote control transmitter and a remote control code received by this receiving circuit. A comparison circuit for comparing with the remote control code and a designated code memory circuit in which the device designation code of the matched remote control code is stored by the comparison circuit are provided.

[0008]

According to the above construction, since the electric equipment to be controlled can be designated by receiving the remote control code from another remote control transmitter, the designation operation of the electric equipment can be facilitated and the electric equipment can be designated. It is not necessary to provide the same number of device designating keys, etc., and the remote control transmitter can be made compact.

[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 schematic configuration diagram showing an example of a remote control transmitter according to the present invention. The same parts as those of the conventional one are designated by the same reference numerals and their detailed description will be omitted. 2 is different from FIG. 2 in that another remote controller transmitter 1 is used.
Receiver circuit 2 for receiving the remote control code from a, 1b ...
And a comparison circuit 3 for comparing the remote control code received by the receiving circuit 2 with the remote control code held by the code memory circuit 4. The device designation code of the matched remote control code is stored in the designation code memory circuit 5 by the comparison circuit 3.

In the above structure, first, for example, one device designation key (not shown) provided in the operation circuit 7 is operated to set the remote control transmitter to the device designation mode. Next, when an arbitrary remote control code is transmitted from this other remote control transmitter 1a attached to the electric device 9a to this remote control transmitter, this remote control code is received by the receiving circuit 2, and the comparison circuit 3 holds the code memory circuit 4 therein. The device designation code of the matched remote control code is stored in the designated code memory circuit 5 after being compared with the remote control code. When the designation operation of the electric device 9a is completed as described above, and thereafter, various control operation instructions are input from the operation circuit 7 as in the conventional art, the remote controller corresponding to the input and corresponding to the device designation code. The code is read from the code memory circuit 4 by the control circuit 6 and transmitted to the electric device 9a by the transmission circuit 8.

When changing the electric device 9a to be controlled,
In the same manner as described above, if the device designation key is operated to transmit an arbitrary remote control code from the other remote control transmitter 1b attached to another electric device 9b to this remote control transmitter, the designated code memory circuit 5 The device designation code is changed, and thereafter, the remote control code corresponding to the other electric device 9b is transmitted.

As described above, according to the remote control transmitter of the present invention, the electric equipment 9 to be controlled can be designated by receiving the remote control code from the other remote control transmitter 1. In addition to being easy to specify, there is no need to provide the same number of device specifying keys as the electric devices 9, and the remote control transmitter can be made compact.

In the above embodiment, after the device designation operation, the predetermined remote control code is read from the code memory circuit 4 by the control circuit 6 every time a control operation instruction is input from the operation circuit 7. If all the remote control codes corresponding to the designated device designation code are configured to be stored in the control circuit 6 from the code memory circuit 4 after the device designation operation, the code memory circuit 4 receives the instruction for each control operation. No access occurs.

[0014]

As described above, according to the remote control transmitter of the present invention, if the electric equipment corresponds to the remote control code held in the code memory circuit, a plurality of remote control transmitters will be installed after the equipment is designated. There is no need to operate, and a single remote control transmitter can remotely control multiple electrical devices. Also, by receiving the remote control code from another remote control transmitter, the electric device to be controlled can be specified, so that the operation of specifying the electric device is easy, and the same number of device specifying keys as the electric device can be specified. It is not necessary to provide the remote control transmitter, and the remote control transmitter can be made compact.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an example of a remote control transmitter according to the present invention.

FIG. 2 is a schematic configuration diagram showing an example of a conventional remote control transmitter.

[Explanation of symbols]

 1 other remote control transmitter 2 reception circuit 3 comparison circuit 4 code memory circuit 5 designated code memory circuit 6 control circuit 7 operation circuit 8 transmission circuit 9 electrical equipment

Claims (1)

[Claims] 1. A remote controller that holds a plurality of types of remote control codes for remotely controlling a plurality of electric devices, and designates an electric device to be controlled to select and transmit a remote control code corresponding to the designated electric device. In the transmitter, a receiving circuit that receives a remote control code from another remote control transmitter, a code memory circuit that holds a plurality of types of remote control codes, and a remote control code received by the receiving circuit is stored in the code memory circuit. A comparison circuit for comparing the remote control code with the designated remote control code, a designated code memory circuit in which the device designation code of the matched remote control code is stored by the comparison circuit, an operation circuit for inputting a control operation of an electric device, and a control circuit for this operation circuit. Reads the remote control code corresponding to the input and corresponding to the device designation code from the code memory circuit. A control circuit and a transmission circuit for transmitting the read remote control code, and by receiving a remote control code from another remote control transmitter, the electronic device to be controlled is designated. Remote control transmitter characterized by.