JP2003298871A - Remote control transmitter and remote control receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To transmit a remote control signal from a remote control transmitter to two or more remote control receivers in distinction between the remote control receivers. <P>SOLUTION: The remote control transmitter is provided with a transmission means having a plurality of light emitting elements which are arranged in parallel and have different emitted light wavelengths and a shielding means which shields outputs of the light emitting elements except one. Each remote control receiver is provided with a reception means having a plurality of light receiving elements which are arranged in parallel and have different peak sensitive wavelengths and a shielding means which shields inputs to the light receiving element except one. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control transmitter and a remote control receiver.

[0002]

2. Description of the Related Art There are cases where two or more electric devices of the same model or the same manufacturer that have a built-in remote control (remote control) receiver are arranged close to each other. In this case, since only one electric device is operated by the remote control transmitting device, the identification (ID: Identifi) corresponding to only one electric device is operated.
The (er) code was set in the data code of the remote control transmission device to identify the electric device.

[0003]

In the prior art, the ID code had to be set in both the remote control transmitting device and the remote control receiving device. The setting operation of the ID code is complicated, and after setting the ID code, the state cannot be easily confirmed. An object of the present invention is to operate two or more electric devices of the same model or the same manufacturer in close proximity to each other without using an ID code, while operating only one electric device by remote control, It is to prevent the other electric device from operating at the same time.

[0004]

A remote control transmission device according to claim 1 of the present invention is a remote control transmission device comprising an operation button and a transmission means for outputting a remote control signal in response to the operation of the operation button. The transmitting means has a plurality of light emitting elements arranged in parallel and having different emission wavelengths, and is provided with a shielding means for shielding the output of other light emitting elements except one light emitting element.

A remote control receiver according to a second aspect of the present invention is a remote control receiver provided with receiving means for receiving a remote control signal output from the remote control transmitter, wherein the receiving means are arranged in parallel. It has a plurality of light receiving elements having different peak sensitivity wavelengths, and is provided with a shielding means for shielding input to other light receiving elements except one light receiving element.

[0006]

1 is a block diagram showing the configuration of an embodiment of a remote control transmitter and a remote control receiver according to the present invention. The remote control transmitter 1 includes an operation button 11 and a CPU (Central Processing).
Unit) / encoder section 12, light emitting elements 13 and 14, and movable filter 15. The operation button 11 is a button that the user presses to operate the remote controller, and includes a power button, a volume button, a number button, and the like. CPU
When any one of the operation buttons 11 is pressed, the encoder unit 12 outputs a remote control signal for operating an external electric device or the like according to the pressed button.

The light emitting elements 13 and 14 emit a remote control signal from the CPU / encoder unit 12 as an optical signal such as infrared rays and output it to the outside. The light emitting element 13 and the light emitting element 14 have different light emission wavelengths, and the light emitting wavelength of the light emitting element 13 is λ1 and the light emitting wavelength of the light emitting element 14 is λ2. The movable filter 15 blocks the output of the light emitting element 13 or the light emitting element 14, is slid in the direction of arrow A, and is arranged in front of the light emitting element 13 or the light emitting element 14.

The remote control receiver 2 includes a movable filter 2
1, the light receiving elements 22 and 23, and the CPU / decoder unit 24 are provided and are connected to the electric device 3. The movable filter 21 shields the input of the light receiving element 22 or the light receiving element 23, slides in the direction of the arrow B, and is arranged in front of the light receiving element 22 or the light receiving element 23.

The light receiving elements 22 and 23 receive the remote control signal emitted from the remote control transmitter 1 and output it as an electric signal. The light receiving element 22 and the light receiving element 23 have different peak sensitivity wavelengths, and the light receiving element 22 has a peak sensitivity wavelength of λ1 and the light receiving element 23 has a peak sensitivity wavelength of λ2. CP
The U / decoder unit 24 includes the light receiving element 22 or the light receiving element 23.
The remote control signal from is converted into a control signal of the electric device and output to the electric device 3 to be controlled. The electric device 3 operates according to a remote control signal from the remote control receiving device 2.

An example of the configuration of the remote control transmission device of this embodiment is shown in FIGS. 2 (a) and 2 (b). In FIG. 2A, the remote controller 1A
, The light emitting element 13A having the wavelength λ1 is opened,
The light emitting element 14A having the wavelength λ2 is a movable filter 15A.
Is shielded by. In this state, operation button 11A
When is pressed, a remote control signal is emitted and the light emitting element 13A,
14A emits light. Since the movable filter 15A blocks the light emitting element 14A, the wavelength λ1 of the light emitting element 13A is reduced.
Only the light of is output.

In FIG. 2B, the movable filter 15A is slid from the state of FIG. 2A to open the light emitting element 14A having the wavelength λ2, and the light emitting element 13A having the wavelength λ1 is shielded by the movable filter 15A. It is in a state. When the operation button 11A is pressed in this state, a remote control signal is emitted and the light emitting elements 13A and 14A emit light. Since the light emitting element 13A is blocked by the movable filter 15A, only the light of the wavelength λ2 of the light emitting element 14A is output.

An example of the configuration of the remote control receiver of this embodiment is shown in FIGS. 3 (a) and 3 (b). In this example, as the electric device 3, a remote control receiver 2 is built in a video display device such as a television receiver, and a movable filter 21A and light receiving elements 22A and 23A are arranged below the video display portion.

In FIG. 3A, the light receiving element 22A having the peak sensitivity wavelength λ1 is in an open state, and the light receiving element 23A having the peak sensitivity wavelength λ2 is the movable filter 21A.
Is shielded by. Here, it is possible to receive only the light of the wavelength λ1 which is transmitted from the remote control transmitter of FIG. 2 (a). At this time, even if the remote control transmission device of FIG. 2B is used, the peak sensitivity wavelength is different, so that it is not received.

FIG. 3B shows a state in which the movable filter 21A is slid from the state of FIG. 3A to open the light receiving element 23A having the peak sensitivity wavelength λ2, and the light receiving element having the peak sensitivity wavelength λ1 is received. The element 22A is the movable filter 21.
Shielded by A. Here, it is possible to receive only the light of wavelength λ2 that is transmitted from the remote control transmitter of FIG. 2 (b). At this time, even if the remote control transmitting device of FIG. 2A is used, the peak sensitivity wavelength is different, and thus the light is not received.

2A and 2B when two televisions as shown in FIGS. 3A and 3B are arranged close to each other.
Using the remote control transmission device as shown in (b), for example, two channel selection operations can be independently performed by the remote control.

The switching of the wavelengths of the remote control transmitting device and the remote control receiving device of this embodiment can be performed by a simple operation, and the state can be confirmed by the position of the movable filter.

[0017]

According to the remote control transmitting device and the remote control receiving device of the present invention, the remote control transmitting device distinguishes between two or more remote control receiving devices, or an electric device equipped with the remote control receiving device. , Remote control signal can be transmitted.

[Brief description of drawings]

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

FIG. 2 is a diagram showing a configuration example of a remote control transmission device of the present embodiment.

FIG. 3 is a diagram showing a configuration example of a remote control receiving device of the present embodiment.

[Explanation of symbols]

1 Remote control transmitter 2 Remote control receiver 3 electrical equipment 11, 11A operation button 12 CPU / Encoder 13, 13A, 14, 14A Light emitting element 15, 15A, 21, 21A movable filter 22, 22A, 23, 23A Light receiving element 24 CPU / Decoder

Claims (2)

[Claims] 1. A remote control transmission device comprising an operation button and a transmission means for outputting a remote control signal in response to the operation of the operation button, wherein the transmission means comprises a plurality of light emitting elements arranged in parallel and having different emission wavelengths. A remote control transmission device comprising: a shielding unit that shields outputs of other light emitting elements except one light emitting element. 2. A remote control receiving device comprising a receiving means for receiving a remote control signal output by a remote control transmitting device, wherein the receiving means has a plurality of light receiving elements arranged in parallel and having different peak sensitivity wavelengths. A remote control receiving device comprising a shielding means for shielding an input to another light receiving element except one light receiving element.