JPH057300U - Walkie talkie toy - Google Patents

Abstract

(57) [Summary] [Purpose] Simplifying the circuit configuration of a transceiver toy,
Make production costs and product prices low. [Structure] A transmitter circuit and a receiver circuit that have different transmission frequencies and reception frequencies are separately installed in the main body case,
The transmission circuit is connected to the transmission-only antenna protruding from the body case to the outside, and the reception circuit is connected to the reception-only antenna stored in the body case.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a transceiver toy that incorporates a transmission / reception circuit and can play wireless communication at a short distance.

[0002]

[Prior Art]

 Many conventional transceiver toys have the exact structure of an actual transceiver.

[0003]

[Problems to be solved by the device]

 Since the above-mentioned conventional transceiver toy is configured to perform transmission and reception with a single antenna, a filter circuit for preventing interference between both circuits is connected between the transmission circuit and the reception circuit. However, there is a drawback that the circuit configuration is complicated, the manufacturing cost and the product price are high, and it is difficult to spread like a normal toy. The present invention aims to provide a transceiver toy that can overcome such drawbacks.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention separately installs a transmitter circuit and a receiver circuit in the main body case, which transmit and receive frequencies are different from each other. It is characterized in that it is configured by connecting a protruding dedicated antenna for transmission and connecting a dedicated receiving antenna housed in the main body case to the receiving circuit.

[0005]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 is a main body case formed by holding with one hand and formed into a portable size. Use a model that imitates the main body case of the transceiver of, or one that is molded into an appropriate shape. 2 is a transmission-only antenna that is supported so as to project from the upper part of the main body case 1, 3 is a small speaker fixed to the upper part inside the main body case 1, and 3A is the reception sound emitted from the small speaker 3 to the outside of the main body case 1. A group of small holes formed so as to pass therethrough, 4 is a reception-only antenna made of a lead wire stored in the lower portion of the main body case 1, 5 is a small microphone fixed to the lower portion of the main body case 1, and 5A is small A group of small holes formed in the main body case 1 so that voice can be sent to the microphone 5, 6 is a battery box fitted in a lower portion of the main body case 1, and a battery 7 is stored inside thereof. . Reference numeral 8 denotes a board fixed to an intermediate portion of the main body case 1, in which a transmission circuit 9 and a reception circuit 10 are separately installed. These are provided with a transmission frequency and a reception frequency in order to prevent interference between transmission and reception. Using a circuit adjusted to have different frequencies such as 49 MHZ and 40 MHZ, the transmission circuit 9 includes a modulation circuit 11 connected to the small microphone 5 and an oscillation circuit 12 incorporating a crystal oscillator. A circuit composed of a transmission signal amplifier circuit 13 connected so as to amplify the transmission signal from these circuits and transmit it to the transmission-only antenna 2 is used. The reception circuit 10 has a reception circuit connected to the reception-only antenna 4. A circuit including a modulation circuit 14 and a reception signal amplification circuit 15 connected so as to amplify a reception signal from this circuit and transmit it to the small speaker 3 is used. Reference numeral 16 is a power switch connected between the battery 7 and the transmission circuit 9 and between the battery 7 and the reception circuit 10, and an operation protrusion 17 is provided to project from the rear surface of the main body case 1 to the outside.

In the transceiver toy having the above configuration, each person who wants to communicate at a short distance from each other holds the main body case 1 by one hand and operates the power switch 16 by operating the operation protrusions 17. When turned on, the call sender blows a voice into the small microphone 5 while bringing his mouth close to the small hole group 5A formed in the main body case 1 he holds. Is converted into a transmission signal by and is transmitted as a transmission radio wave from the transmission-dedicated antenna 2. This transmitted radio wave is received by the reception-only antenna 4 of another transceiver toy held by the other party of the call, and it is converted into a reception signal by the reception circuit 10 and input to the small speaker 3 and from the small speaker 3. Since the voice of the call sender is reproduced, the other party of the call listens to the voice of the call sender while keeping his / her ear close to the small hole group 3A formed in the body case 1 held by the other party. can do. Then, by repeating the above-mentioned operations while switching the sender role of the call and the partner role of the call, it is possible to play communication by the simultaneous call.

[0007]

[Effect of the device]

 The present invention separately provides a transmission circuit and a reception circuit as described above, separates the antenna into a transmission-only and reception-only antenna, and projects a transmission-only antenna from the case to the outside to provide a reception-only antenna. The transceiver toy has the same appearance as a conventional transceiver toy, because it is housed inside the case so that it cannot be seen from the outside of the body case that it is dedicated to reception. It is possible to make a walkie-talkie toy having the sensitivity that can be surely achieved. Moreover, since it is not necessary to use a complicated filter circuit in the circuit, the circuit configuration can be simplified and the manufacturing cost and product price can be reduced compared to the conventional transceiver toy, and the transceiver is suitable for popularization. Toys can be provided.

[Brief description of drawings]

FIG. 1 is a front view of a transceiver toy according to the present invention.

FIG. 2 is a diagram illustrating an internal structure of the transceiver toy.

FIG. 3 is a block diagram illustrating a configuration of a transmission circuit.

FIG. 4 is a block diagram illustrating a configuration of a receiving circuit.

[Explanation of symbols]

1 ... Main body case, 2 ... Transmission-only antenna, 4 ... Reception-only antenna, 9 ... Transmission circuit, 10 Reception circuit.

Claims (1)

[Claims for utility model registration] [Claim 1] A transmission circuit and a reception circuit, which differ in transmission frequency and reception frequency from each other, are separately installed in the main body case, and the transmission circuit is external to the main body case. A transceiver toy with a protruding transmit-only antenna connected to it and a receive circuit connected to the receive-only antenna stored in the case.