CN2092359U

CN2092359U - Telephone

Info

Publication number: CN2092359U
Application number: CN 91207538
Authority: CN
Inventors: 潘健; 田歆杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-05-10
Filing date: 1991-05-10
Publication date: 1992-01-08

Abstract

The utility model relates to a telephone, which is composed of a telephone outer shell, a sound pick-up, a sound reproduction loudspeaker, a telephone starting control key and a telephone circuit. The telephone is characterized in that the telephone circuit is composed of an amplifying circuit, a capacitive impedance component and an impedance component. Utilizing two interconnected telephones can mutually converse. Compared with telephones in the prior art, the telephone has the characteristics of simple structure, low cost and convenient installation. The telephone not only can be used as a child's toy, and can also be used for the conversation and communication among rooms in a family or offices. The telephone has the line self-checking function.

Description

Telephone

A kind of phone of the present invention has related to the toy field, has particularly related to the toy field of imitation phone.

In the prior art, phone has many kinds, but these phone costs are higher, be unsuitable for being used as toy for children, in the prior art, the toy of some imitation phones arranged also, but these toys are identical with " true phone " on the profile, in fact do not have the call function of phone.

The objective of the invention is to: provide a kind of not only cost low, and the phone that can converse.

A kind of phone of the present invention has a shell, a sound pick-up, playback loudspeaker, first a telephone line output end mouth, second a telephone line output end mouth, a phone unblank operating key, a telephone set network, described telephone set network is connected with described sound pick-up, playback loudspeaker, the first telephone line output end mouth, the second telephone line output end mouth, its duty is subjected to the control of described phone unblank operating key, it is characterized in that:

Described telephone set network is made up of an amplifying circuit, capacitive reactance parts, an impedance compoment; Described amplifying circuit has an input, is connected with described sound pick-up between this input and the described first telephone line output end mouth; Described amplifying circuit has an output, and described capacitive reactance parts and playback loudspeaker successively are connected in series between this output and the described second telephone line output end mouth; Be connected with described impedance compoment between the link of described capacitive reactance parts and playback loudspeaker and the described first telephone line output end mouth: the power connector end of described amplifying circuit is connected with power supply side by described unblank operating key, the earth terminal of described amplifying circuit is connected with the described first telephone line output end mouth, and connects the negative pole of power supply.

After the unblank operating key closure of phone of the present invention, the power connector end of described amplifying circuit and power connection, start working, the sound of awarding the words people can change the signal of telecommunication into by described sound pick-up, this signal of telecommunication is after amplifying circuit amplifies, through described capacitive reactance parts and sound reproduction loudspeaker, export by the second telephone line output end mouth, after the telephone line output end mouth that utilizes lead two playscripts with stage directions to be invented described phone interconnected, the signal of telecommunication of the telephone line output end mouth of any phone output all can be reduced to voice signal by the playback loudspeaker of another phone.When the unblank operating key of two described phones is all closed, utilize these two phones to communicate with each other.

A kind of phone of the present invention phone more of the prior art has characteristics simple in structure, that cost is low, not only can be used as toy for children, and can be used for the conversation contact between family room or the official rooms.

Figure 1 shows that the most preferred embodiment that phone of the present invention is selected.

Figure 2 shows that the key diagram of oscillating circuit (18).

Figure 3 shows that the key diagram of oscillating circuit (20).

Exemplify the selected most preferred embodiment of the present invention below with reference to Fig. 1.

In the present embodiment, described phone has a shell, have a sound pick-up (1), playback loudspeaker (2), first telephone line output end mouth (3), second telephone line output end mouth (4), a phone unblank operating key (5), a telephone set network (6) in the shell, described telephone set network (6) is made up of amplifying circuit (7), electric capacity (8), resistance (9); Amplifying circuit (7) has an input (10), be connected with sound pick-up (1) between this input (10) and the output port (3), amplifying circuit (7) has an output (11), be connected in series with electric capacity (8) successively between this output (11) and the described output port (4), playback loudspeaker (2), be connected with resistance (9) between the link (12) of electric capacity (8) and playback loudspeaker (2) and the output port (3), the power connector end (13) of amplifying circuit (7) is connected with power supply side (14) by unblank operating key (5), the earth terminal (15) of amplifying circuit (7) is connected with output port (3), and connects power cathode (16).

After unblank operating key (5) closure of the described phone of present embodiment, the power connector end (13) of described amplifying circuit (7) is connected with power supply (14), amplifying circuit (7) is started working, the sound of awarding the words people can change the signal of telecommunication into by sound pick-up (1), this signal of telecommunication is after amplifying circuit (7) amplifies, through electric capacity (8) and sound reproduction loudspeaker (2), output port (4) output, when the output port (3 that utilizes lead with the described phone of two playscript with stage directions embodiment, 4) interconnect after, the signal of telecommunication of the output port of any phone (4) output all can be reduced to voice signal by the sound reproduction loudspeaker (2) of another phone.When the unblank operating key (5) of two described phones is all closed, utilize these two phones to communicate with each other.

By phone that present embodiment exemplified as can be seen: phone of the present invention also has advantage easy for installation, and when two phones interconnected, the output port of two phones (3,4) can be connected to each other arbitrarily.Phone of the present invention also has the function of self check circuit on-off, after two phones interconnect, awards the words people and can check that the phone that self uses has voiceless sound to judge whether telephone line is communicated with by speech.

In the present embodiment, can also connect an electric capacity between the power connector end (13) of amplifying circuit (7) and the output port (3),, reduce the electrical interference of switch (5) amplifying circuit (7) so that make amplifying circuit (7) working stability.In the present embodiment, can also be connected with a resistance between the power connector end (13) of amplifying circuit (7) and the input (10), be used for further improving the sensitivity of phone.

In the present embodiment, the input (10) of described amplifying circuit (7) can also connect an oscillating circuit by a switch, after switch (5) closure, press this switch, the oscillator signal input amplifying circuit (7) of oscillating circuit output can be made, thereby the middle tintinnabulation that produces of loudspeaker (2) of the phone of two interconnection can be made.

Described oscillating circuit can be made of circuit shown in Figure 2 (18), and this circuit is made of three gate circuits (17).

Described oscillating circuit also can be made of circuit shown in Figure 3 (20), and this circuit is made of two gate circuits (19).

In the present embodiment, amplifying circuit (7) can be made of LM386 type integrated circuit amplifier, and electric capacity (8) can value be 10 μ f～100 μ f, and resistance (9) can value be 5～20 Ω.

Claims

1, a kind of playphone has a shell, a sound pick-up, playback loudspeaker, first a telephone line output end mouth, second a telephone line output end mouth, a phone unblank operating key, a telephone set network.Described telephone set network is connected with described sound pick-up, playback loudspeaker, the first telephone line output end mouth, the second telephone line output end mouth, and its duty is subjected to the control of a described phone unblank control key, it is characterized in that:

Described telephone set network is made up of an amplifying circuit, capacitive reactance parts, an impedance compoment; Described amplifying circuit has an input, is connected with described sound pick-up between this input and the described first telephone line output end mouth; Described amplifying circuit has an output, and described capacitive reactance parts and playback loudspeaker successively are connected in series between this output and the described second telephone line output end mouth; Be connected with described impedance compoment between the link of described capacitive reactance parts and playback loudspeaker and the described first telephone line output end mouth; The power connector end of described amplifying circuit is connected with power supply side by described unblank operating key, and the earth terminal of described amplifying circuit is connected with the described first telephone line output end mouth, and connects the negative pole of power supply.

2, phone according to claim 1 is characterized in that: also be connected with an electric capacity between the power connector end of described amplifying circuit and the described first telephone line output end mouth.

3, according to claim 1,2 described phones, it is characterized in that: the input of described amplifying circuit also is connected with an oscillating circuit by a switch.

4, according to claim 1,2 described phones, it is characterized in that: also be connected with a resistance between the power connector end of described amplifying circuit and the input of amplifying circuit.