CN2235646Y

CN2235646Y - Message leaving device

Info

Publication number: CN2235646Y
Application number: CN 94232024
Authority: CN
Inventors: 屈惠民
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-12-20
Filing date: 1994-12-20
Publication date: 1996-09-18
Anticipated expiration: 2004-12-20

Abstract

The utility model relates to a message leaving device, composed of a language input circuit, a language synthesis chip, an amplifying circuit, a switch circuit, a power circuit, a loudspeaker, a shell, etc. The utility model has the characteristics of simple structure, small volume, low production cost, convenient use and carrying, etc. and can be conveniently used for the occasions such as families, offices, etc.

Description

A kind of message device

The utility model belongs to electronic technology field, is specially a kind of message device.

Prior art the message device that extensively adopts be a kind of sound-track engraving apparatus that constitutes by magnetic medium and complicated mechanical, its manufacturing cost height of this kind message device and use inconvenience.Chinese patent (CN2144835Y) once disclosed a kind of electronic door bell message device, and it is made up of pure electronic devices and components, and has avoided necessary magnetic medium of sound-track engraving apparatus and complicated mechanical devices, except that using as doorbell, also can be used for putting down in writing guest's message.But still there is the circuit structure complexity and carries inconvenient shortcoming.

The purpose of this utility model provides that a kind of circuit structure is simple, and production cost is low, carries and message device easy to use.The purpose of this utility model is to realize like this; The utility model comprises speech input circuit (1), language synthesis chip (2), amplifying circuit (3), on-off circuit (4), power circuit (5), loudspeaker (6) and shell (7) etc., and wherein, speech input circuit (1) is by IR ₀, C ₀, R ₁, C ₁And Mike M ₁Form; Amplifying circuit (3) is by IC ₇Form; On-off circuit (4) is by K ₁, K ₂And LED ₁, LED ₂Form; Power circuit (5) is by power supply E, K switch ₃, LED ₃And IC ₈, IC ₉Form; Language synthesis chip (2) is the language chip IC of SR9326 by model ₆And IC ₁, IC ₃, IC ₄, IC ₅-1, IC ₅-2 form.

Its concrete course of work is: turn on the power switch K ₃, pilot lamp LED ₃Bright, then the utility model is in electric on-state.Open recording switch K ₂, this moment time base circuit IC ₂Start working, export high level and IC ₆The EOM pin be high level also, at IC ₅Under the effect, LED ₂Bright, then system is in recording state, at this moment IC ₁Be output as low level, i.e. language chip IC ₆The PD pin be low level, its P/ R pin is a low level also, then allows through M ₁Input speech signal, and its speech signal write in the inner memory.Work as K ₂During disconnection, LED ₂Extinguish, at this moment IC ₂The upset output low level, PD, CE and P/ R are high level simultaneously, this moment is as opening playback switch K ₁, the voice content of exportable typing at any time then.Work as K ₁When opening, LED ₁Bright, because of IC ₄Output low level, CE are effective gating memory, IC ₆The output language signal is through IC ₇Power amplification can be exported the language that has recorded by loudspeaker (6).

Compared with prior art its line construction is simple, volume is little, production cost is low for the utility model, portably use convenience, except that can be used for family's use, also can be widely used in places such as office.

Fig. 1 is a theory diagram of the present utility model.

Fig. 2 is a shape assumption diagram of the present utility model.

Fig. 3 is circuit theory diagrams of the present utility model.

Embodiment of the present utility model such as Fig. 2, shown in Figure 3, wherein IC ₁Select Sheffer stroke gate CD4011B for use, IC ₂Select time base circuit NE555P for use, IC ₃Select for use and door CD4O81BCN, IC ₄Select rejection gate CD4001B for use, IC ₅Select CD40107B for use, IC ₆Select voice sheet SR9326 for use, IC ₇Select power tube TDA2002 for use, IC ₈, IC ₉Select stabilivolt AN7812 and L7805 respectively for use.

Claims

1, a kind of message device is made up of speech input circuit (1), language synthesis chip (2), amplifying circuit (3), on-off circuit (4), power circuit (5), loudspeaker (6) and shell (7), and it is characterized in that: speech input circuit (1) is by R ₀, C ₀, R ₁, C ₁And microphone M ₁Form; Amplifying circuit (3) is by IC ₇Form; On-off circuit (4) is by K ₁, K ₂And LED ₁, LED ₂Form; Power circuit (5) is by power supply E, K ₃, LED ₃And IC ₈, IC ₉Form; Language synthesis chip (2) is by the language chip IC of SR9326 ₆And IC ₁, IC ₃, IC ₄, IC ₅-1, IC ₅-2 form.