JPH05175912A - Infrared ray radio equipment - Google Patents

Abstract

PURPOSE:To obtain an inexpensive infrared ray radio equipment in which a transmitter-receiver is positioned in an optimum direction with simple configuration. CONSTITUTION:A transmitter 16 provided with an infrared ray emitting element, a positioning adjustment laser beam emitting element 23, and a laser beam receiving element 24 and a receiver 18 provided with the infrared ray receiving element and a positioning adjustment laser beam reflection mirror 25 are arranged by opposing to each other respectively, a laser beam reflected by the receiver 18 is received by the laser beam receiving element 24 of the transmitter 16 and the direction of the transmitter is placed opposite to each other so as to enable the positioning adjustment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an infrared radio device, and more particularly to an infrared radio device having a positioning adjustment function for transmitting and receiving signals via infrared rays.

[0002]

2. Description of the Related Art Even in this type of infrared radio device which transmits and receives signals via infrared rays, there is a conventional one having a so-called positioning adjustment function for adjusting a relative positional relationship between a transmitter and a receiver. there were. As a specific example of the positioning adjustment function, there is one that is configured so as to be in a mutually facing posture. For example, in a conventional infrared radio device disclosed in Japanese Patent Laid-Open No. 62-277892, a receiver receives an infrared signal transmitted from a transmitter, the signal level of the received signal is analyzed, and the received signal level is increased. It is configured to rotate the receiver itself in the following directions.

[0003]

However, since the conventional infrared radio apparatus having the positioning adjustment function is configured to detect the received signal level of infrared rays and change the direction of the receiver as described above, There is a problem that the configuration of the infrared wireless device becomes complicated and the price of the device increases.

The present invention has been made in order to solve the above problems, and an object thereof is to obtain an inexpensive infrared radio device capable of rotating a transceiver in an optimum direction with a simple structure.

[0005]

In order to achieve the above object, an infrared radio apparatus according to the present invention comprises an infrared light emitting element, a positioning adjustment laser light emitting element, a transmitter having a laser light receiving element, and an infrared light receiving element. It is characterized in that the element and the receiver equipped with a reflecting mirror for reflecting the laser beam for positioning adjustment are arranged opposite to each other.

[0006]

Therefore, according to the infrared wireless device of the present invention, the laser light emitted from the transmitter having the laser light emitting element for positioning adjustment is reflected by the laser light reflecting mirror of the receiver and is reflected by the reflecting mirror. Laser light is received by the laser light receiving element of the transmitter, and the transmitter is rotatably positioned and adjusted based on the received reflected laser light, so that the transmitter and receiver are facing each other through the laser light. Will be able to maintain.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an external view of an infrared wireless device according to this embodiment.

In FIG. 1, the infrared radio apparatus of this embodiment comprises an infrared transmitter 16 having a laser light emitting element 23 and a laser light receiving element 24, and an infrared receiver 18 having a laser light reflecting mirror 25. ing.

FIG. 2 is a functional block diagram of the transmitting equipment of the infrared radio apparatus of this embodiment shown in FIG. In the figure, the transmitter of the present embodiment includes an audio signal source 11 and an A /
D conversion circuit 12, I / O unit 13, and optical modulation circuit 14
And an infrared light emitting element 15 and a transmitter 16 provided with the light emitting element 15.

Further, FIG. 3 is a functional block diagram of a receiving device of the infrared radio apparatus of this embodiment shown in FIG. In the figure, the transmitter of the present embodiment includes an infrared light receiving element 17
A receiver 18 provided with the light receiving element 17, an optical demodulation circuit 19, an I / O unit 20, a D / A conversion circuit 21, and an audio output unit 22.

The transmitter 16 is provided with a laser light emitting element 23 and a laser light receiving element 24 for positioning adjustment, and the receiver 18 is provided with a laser light reflecting mirror 25 for positioning adjustment. Further, the transmitter 16 is configured to be rotatable with respect to the horizontal axis and the vertical axis.

Next, the operation of the infrared radio apparatus of this embodiment configured as described above will be described.

In FIG. 2, a voice signal emitted from a voice signal source 11 of a transmitting device of an infrared radio device is input to an A / D conversion circuit 12 and converted from an analog signal to a digital signal in the A / D conversion circuit 12. It The digital signal converted by the A / D conversion circuit 12 is input to the I / O unit 13 and converted into a biphase mark modulation signal in the I / O unit 13. Then, in the light modulation circuit 14 to which the biphase mark modulation signal is input, light is modulated by the biphase mark modulation signal to drive the light emitting element 15 and emit infrared light. In this way, the audio signal from the transmitter 16 is transmitted to the receiver 18 via infrared rays.

Next, the voice signal by the infrared light transmitted as described above is received by the receiving device of the infrared radio apparatus of this embodiment as follows. That is, in the receiving device shown in FIG. 3, the infrared light emitted from the light emitting element 15 is received by the light receiving element 17 of the receiving device, and the light is input from the receiver 18 to the optical demodulation circuit 19. The light demodulation circuit 19 demodulates the received light. The light demodulated by the optical demodulation circuit 19 is converted into a normal digital signal by the I / O unit 20 and input to the D / A conversion circuit 21. D /
The A conversion circuit 21 converts the digital signal into an original analog audio signal and outputs the audio signal to the audio output unit 22.

The communication of the audio signal through the infrared rays of the infrared radio apparatus of this embodiment is as described above.

Next, the positioning adjustment of the receiving device in the infrared radio apparatus of this embodiment will be described. First, the laser light emitting element 23 provided in the transmitter 16 of the transmitting device always emits laser light. The laser light emitted from the laser light emitting element 23 is received by the receiver 1 of the receiving device.
8 is reflected by the laser light reflecting mirror 25, and the transmitter 16
The light is received by the laser light receiving element 24. Then, the infrared wireless device of the present embodiment analyzes the laser light received by the laser light receiving element 24, and performs positioning adjustment so that the transmitter 16 always takes a direct facing posture with the receiver 18.
Therefore, the transmitter 16 of the infrared wireless device of the present embodiment can easily adjust its own posture in the direction directly facing the partner receiver 18.

[0017]

As described above, according to the infrared wireless device of the present invention, a transmitter including an infrared light emitting element, a positioning laser emitting element, and a laser receiving element,
The infrared light receiving element and the receiver equipped with a laser light reflecting mirror for positioning adjustment are placed opposite to each other, and the laser light reflected by the receiver is received by the laser light receiving element of the transmitter, and the direction of the transmitter is received. Since the positioning adjustment function is realized with a simple configuration, it is possible to obtain an inexpensive infrared wireless device that positions the transceiver in the optimum direction.

[Brief description of drawings]

FIG. 1 is an external view of an infrared wireless device of this embodiment.

FIG. 2 is a functional block diagram of a transmitting device of the infrared wireless device shown in FIG.

FIG. 3 is a functional block diagram of a receiving device of the infrared wireless device shown in FIG.

[Explanation of symbols]

 11 audio signal source 12 A / D conversion circuit 13 I / O unit 14 optical modulation circuit 15 infrared light emitting element 16 transmitter 17 infrared light receiving element 18 receiver 19 optical demodulation circuit 20 I / O unit 21 D / A conversion circuit 22 audio output section 23 laser light emitting element 24 laser light receiving element 25 laser light reflecting mirror

Claims (1)

[Claims] 1. A transmitter comprising an infrared light emitting element, a laser light emitting element for positioning adjustment, and a laser light receiving element,
An infrared wireless device comprising an infrared light receiving element and a receiver equipped with a reflecting mirror for reflecting a laser beam for positioning and adjusting.