CN2408637Y

CN2408637Y - Magaphone with solified voice sheet

Info

Publication number: CN2408637Y
Application number: CN 99233540
Authority: CN
Inventors: 刘俊旺; 蒋孟均; 彭畔
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-17
Filing date: 1999-06-17
Publication date: 2000-11-29
Anticipated expiration: 2009-06-17

Abstract

The utility model relates to an amplifier with a solidified speech sheet. The front end of a prepositive stage of the existing amplifier is additionally provided with a solidified speech circuit which is formed by the connection of a control circuit 1 and a speech solidified output circuit 2 in series. The utility model has the advantages of simple structure, easy processing and fabrication, and convenient operation and use and is suitable for specific occasions of schools, troops, factories, etc., for use.

Description

A kind of with the sound amplifier that solidifies the voice sheet

The utility model relates to a kind of sound amplifier, and it is a kind of with the sound amplifier that solidifies the voice sheet refering in particular to.

Sound amplifier is widely used in factory, rural area, army, conference hall etc. to be located, and generally all has functions such as radio reception, recording playback, microphone input, can satisfy the needs that people use preferably; But,, often need to use a kind of fixing song as school, army etc. for some specific occasions, using during for set, meeting, at this moment, generally is to adopt the tape playback, because the frequency that this song tape uses is quite high, tape and magnetic head all are easy to wearing and tearing, influence result of broadcast, in addition, the position that song is on the tape also is not easy to determine, often needs rewinding, tape swapping, therefore, during broadcast, it is very inconvenient that the operator feels.

The purpose of this utility model is to overcome the deficiency of prior art and provides a kind of simple in structure, and processing and manufacturing is easy, and band easy for operation solidifies the sound amplifier of voice sheet.

The utility model is that the employing following proposal realizes: it is before existing sound amplifier, put a grade front end and add a curing sound circuit, and the curing sound circuit is formed by control circuit 1, voice curing output circuit 2 serial connections.

Concrete structure of the present utility model describes in detail below in conjunction with accompanying drawing:

Accompanying drawing 1 is the utility model control panel front view.

Accompanying drawing 2 is to solidify the sound circuit electrical schematic diagram in the utility model.

See accompanying

drawing

1,2, the utility model is to add 2-6 broadcast control button K on the control panel of existing sound amplifier, set up one at sound amplifier prestage front end and solidify sound circuit, and solidify sound circuit and formed by control circuit (1), voice curing output circuits (2) serial connection, it is characterized in that: control circuit (1) is by center processor U ₂, resistance R ₁-R ₁₂, capacitor C ₁-C ₃Triode T ₁, crystal oscillator JZ, record button P/R form, voice solidify output circuits (2) by integrated package U ₁, U ₃, capacitor C ₄-C ₈, Z ₁-Z ₄Form, and integrated package U in the control circuit (1) ₁

Control output end

8,9,10 pin meet integrated package U in the voice curing circuit (2) respectively ₂Triggering

3,24,25, control button K meets integrated package U ₁Trigger end, integrated package U ₂Output connect the sound amplifier preamplifier state, integrated package U by 17 pin 13, ₃Meet integrated package U ₂27 pin, for it provides the constant voltage working power.

Integrated package U in the utility model ₂Model be 286CPU, U ₁Be ISD4004, U ₃Be H7230.

Operation principle of the present utility model is summarized as follows:

1, voice solidification process:

Push record button P/R in the control circuit earlier, integrated package U in the central control circuit 1 ₁From 12 pin output signals control integrated package U ₁Be operated in recording state, then, the song that need are commonly used through microphone from plug X ₄Send into integrated package U ₁In, promptly finish the work of recording, and in recording, integrated package U ₁Will be by song typing order, auto-partition, K is corresponding one by one with the broadcast control button.

2, broadcast process:

When needing broadcast, only need to push corresponding broadcast button according to the corresponding relation of typing song with the broadcast button, the broadcast signal will be through plug X ₁Input to integrated package U ₂In 15,16,17,18 pin in the respective foot position, make integrated package send broadcast instruction, through the output of 9,10 pin, control integrated package U ₁Play corresponding song, audio signal is exported through plug X from integrated package 13 pin ₃Input causes the prestage of sound amplifier, after sound amplifier amplifies, promotes loudspeaker and outwards broadcasts then.

The utility model is owing to adopt said structure, can realize the high-fidelity hardware voice programming of sound bank, possess repeatedly the automatic memory function of recording, put, smear, cut off the power supply, not have wearing and tearing, be very easy to the needs of specific occasion, simplified the program of broadcast operation effectively with song.

In sum, the utility model mechanism is simple, and processing and manufacturing is easy, and is easy for operation, is suitable for using in specific occasions such as school, army, factories.

Claims

A kind of with the sound amplifier that solidifies the voice sheet, be on the control panel of existing sound amplifier, to add 2-6 broadcast control button K, set up one at sound amplifier prestage front end and solidify sound circuit, and solidify sound circuit and formed by control circuit (1), voice curing output circuits (2) serial connection, it is characterized in that: control circuit (1) is by center processor U ₂, resistance R ₁-R ₁₂, capacitor C ₁-C ₃Triode T ₁, crystal oscillator JZ, record button P/R form, voice solidify output circuits (2) by integrated package U ₁, U ₃, capacitor C ₄-C ₈, Z ₁-Z ₄Form, and integrated package U in the control circuit (1) ₁Control output end 8,9,10 pin meet integrated package U in the voice curing circuit (2) respectively ₂Triggering pin 3,24,25, control button K meets integrated package U ₁Trigger end, integrated package U ₂Output connect the sound amplifier preamplifier state, integrated package U by 17 pin 13, ₃Meet integrated package U ₂27 pin, for it provides the constant voltage working power.