CN2515724Y

CN2515724Y - Device for displaying selecting single phonetic function on liquid crystal display screen

Info

Publication number: CN2515724Y
Application number: CN 01277611
Authority: CN
Inventors: 许世法
Original assignee: Mitac International Corp
Current assignee: Mitac International Corp
Priority date: 2001-12-21
Filing date: 2001-12-21
Publication date: 2002-10-09
Anticipated expiration: 2011-12-21

Abstract

The utility model is a device which can realize the voice effectiveness of LCD screen display menu, comprising at least one voice control circuit which can generate voice signals, and a loudhailer, wherein, the loudhailer is connected with the voice control circuit and a function key through circuitry so that when the function key is pressed down, the voice control circuit can generate a voice signal which will be transmitted to the loudhailer and then the loudhailer will give voices. Therefore, under the control of the function key, the screen of the computer system can be accompanied by voice effects when displaying menu functions.

Description

Realize the device of liquid crystal display equipment screen display menu voice effect

Technical field:

The relevant a kind of device that makes screen display menu (OSD) the generation sound effect of LCD of the utility model.

Background technology:

Because it is in light weight that notebook (NOTEBOOK) has, volume is little, and portable characteristics, be particularly suitable for modern's mobile office demand, so notebook becomes more and more welcome in today.And in order to cater to user's demand, notebook has been endowed increasing function, and even now, existing notebook are constantly perfect on function, but still seems comparatively dull on its phonetic function.

Computer technology now just develops towards intelligentized direction, LCD (LCD) on for example present most of notebook all is designed to have screen display menu (OSD) function, in screen display menu below the user presses panel of LCD (OSD) function key, on LCD Panel, will demonstrate corresponding screen display menu (OSD), the user can be according to the indication of this menu parameters of regulator solution crystal display easily, as brightness, contrast etc., after having changed parameter, these parameter values can be stored in the computer system, but do not had so far when carrying out this screen display menu (OSD) feature operation, suitably increased the device or the structure of some auxiliary audios.

The utility model content:

A purpose of the present utility model is to provide a kind of device of realizing liquid crystal display equipment screen display menu (OSD) voice effect, can make the user when carrying out screen display menu (OSD) feature operation, the function key of pressing on the corresponding liquid crystal display just can be sounded; Its voice control circuit can be made up of a microprocessor and a speech chip, wherein this speech chip internal memory contains the speech data corresponding to different function keys, some universal input/output interfaces of this microprocessor then are used to receive the voice control signal that is triggered by different function keys, control action by this voice control signal makes this integrated speech chip read corresponding speech data and produces a voice signal and be delivered to loudspeaker, the also earth terminal and the ground conductive of control loudspeaker of this voice control signal simultaneously, thus make loudspeaker send different sound.

For achieving the above object, the device of realization liquid crystal display equipment screen display menu voice effect of the present utility model is characterized in comprising: a loudspeaker, and it includes a first input end and one second input end; At least one function key, this function key can be controlled the second input end grounding whether state of this loudspeaker; And at least one voice control circuit, the voice signal that this voice control circuit produced is that the first input end by loudspeaker inputs in the loudspeaker.

Owing to be provided with a voice control circuit and a loudspeaker that is used for liquid crystal display equipment screen display menu (OSD) at inside computer system, wherein loudspeaker is connected with voice control circuit and a series of function button by circuit, thereby all can sound when making the user press different function keys each time, thereby make uninteresting slightly screen display menu (OSD) feature operation become rich intereting, and the user is provided a more friendly operation-interface.

To the purpose of this utility model, characteristics and advantage further understanding and understanding can be arranged for making, preferred embodiment of the present utility model be described in detail below in conjunction with accompanying drawing.

Description of drawings:

Fig. 1 is existing screen display menu (OSD) function key switch circuit diagram on the LCD;

Fig. 2 is the sound circuit figure of a preferred embodiment of the present utility model;

Fig. 3 is the sound circuit figure of another preferred embodiment of the present utility model.

Embodiment:

See also Fig. 1, this figure uses the most general a kind of screen display menu (OSD) function key switch circuit on the LCD, the major function of this circuit is exactly a digital signal (electric potential signal) of utilizing screen display menu (OSD) the function key K above the panel of LCD to produce, universal input and output port P by microprocessor 10 inputs to some the specific buffers (register) in the microprocessor, and carry out some corresponding screen display menu (OSD) functions by these buffers, brightness as LCD, contrast is regulated etc. automatically.

See also Fig. 2, a preferred embodiment of the present utility model shown in the figure, in the middle of this embodiment, the utility model is provided with a voice control circuit 20 and a loudspeaker 30, and this voice control circuit 20 is oscillatory circuits in present embodiment, this oscillatory circuit is by resistance R 1, R2, triode Q10, a Q20 and a capacitor C 1 are formed, this oscillatory circuit can produce a voice signal at the collector of triode Q2, and this voice signal is transported to the first input end 31 of loudspeaker 30.

Simultaneously, second input end 32 of loudspeaker 30 is parallel with several triodes Q1, Q2, Q3, these triodes Q1, Q2, the base stage of Q3 by circuit and with LCD on corresponding function key K1, K2, K3 connect respectively, and those function keys K1, K2, K3 is connected with one+5V voltage source with parallel way, when making the user press wherein certain function key, as K1, this function key K1 is connected with earth terminal and is in closure state, and the base stage of corresponding triode Q1 is also by this function key K1 and ground connection causes this triode Q1 to become conducting state by original cut-off state simultaneously, also second input end 32 of the loudspeaker that promptly is connected with this triode Q1 is also connected with ground wire, and this moment, this loudspeaker 30 just can sound.

Like this, when the user presses function key K1 on the panel of LCD, when demonstrating corresponding screen display menu (OSD) menu, all can be attended by corresponding sound effect on the LCD picture, and in the time of user's release function key K1, the earth terminal of corresponding triode Q1 is in cut-off state again, then loudspeaker 30 stops sounding, and as the function key K2 that presses other, in the time of K3, its principle of work is identical, therefore locates to repeat no more.

See also Fig. 3, the circuit diagram of an other preferred embodiment of the present utility model then is provided, and this voice control circuit 20 is made up of a microprocessor 10 and a speech chip (VOCAL IC) 50 in present embodiment, wherein, several and function key K1 are arranged on this microprocessor 10, K2, universal input/output interface (GPIO) P1 that K3 etc. are corresponding, P2, P3, then store corresponding to different function key K1 K2, the speech data of K3 etc. in this speech chip 50.

In addition, also be provided with one first output interface 11 and one second output interface 12 on this microprocessor 10, this first output interface 11 links to each other with this speech chip 50 by serial clock (SCL) interface on this speech chip 50 and/or serial data (SDA) interface, and output terminals (OUTPUT) whiles in this speech chip 50 link to each other with the first input end of loudspeaker 30; 12 of this second output interfaces pass through a triode Q and link to each other with second input end 32 of loudspeaker 30, wherein, the grounded collector (GND) of this triode Q, but when not carrying out any screen display menu (OSD) function, this triode Q is in cut-off state.

Be example and Fig. 3 is described in detail now with function key K1, as previously mentioned, because can be in advance according to different function keys in this speech chip 50, as K1, and the different speech data of setting according to the user personal like in this chip stored, then as function key K1 corresponding to screen display menu on the LCD (OSD) function key "+" (this function key "+" be the expression LCD a certain parameter value increase), then in this speech chip 50, just can store a digital voice data " under increasing " in advance, in the time of use, press this function key K1, universal input/output interface (GPIO) P1 ground connection and become an electronegative potential then, control microprocessor 10 produces an output at its first output interface 11, and will export by serial clock (SCL) interface on this speech chip 50 and/or serial data (SDA) interface and be delivered to speech chip 50, to represent the output (this is output as a digital speech in fact) of this speech data " under increasing " to convert an emulation (ANALOG) signal to by this speech chip (VOCAL IC) 50 then and export the first input end 31 of loudspeaker 30 to, 12 of second output interfaces of microprocessor 10 produce an output and make the triode Q that links to each other with second output interface 12 transfer conducting state to by cut-off state under the control of this electronegative potential simultaneously, promptly make second input end 32 of loudspeaker 30 also be switched on (i.e. second input end, 32 ground connection), the loudspeaker 30 and sound that sends corresponding " under increasing " comes then, and for other function key K2, K3 etc., its principle of work is identical, repeats no more herein.

Above-mentioned for embodiment only in order to explanation the utility model; the content of the speech data of being stored in this integrated speech chip; can require to reset according to user's different individuals; thereby satisfy different users's demand; and the equivalence that those of ordinary skill in the art does according to the utility model changes and equivalence is replaced, and all should not be included in the protection domain that claims limit.

Claims

1. device of realizing liquid crystal display equipment screen display menu voice effect is characterized in that comprising:

One loudspeaker, it includes a first input end and one second input end;

At least one function key, this function key can be controlled the second input end grounding whether state of this loudspeaker; And

At least one voice control circuit, the voice signal that this voice control circuit produced are that the first input end by loudspeaker inputs in the loudspeaker.

2. the device of realization liquid crystal display equipment screen display menu voice effect as claimed in claim 1, it is characterized in that, second input end of this loudspeaker is to be connected with this screen display menu function key by a triode, this triode is in the noble potential cut-off state under normal condition like this, and when this screen display menu function key is pressed, thereby this triode conducting makes second input end grounding.

3. a kind of device of realizing liquid crystal display equipment screen display menu voice effect as claimed in claim 1 is characterized in that this voice control circuit is an oscillatory circuit.

4. the device of realization liquid crystal display equipment screen display menu voice effect as claimed in claim 1 is characterized in that this voice control circuit comprises:

One microprocessor offers at least one and the corresponding universal input and output port of this screen display menu function key on it, this microprocessor also offers one first output interface and one second output interface in addition; And

One speech chip can be stored the speech data corresponding to different function keys in it;

5. the device of realization liquid crystal display equipment screen display menu voice effect as claimed in claim 4, it is characterized in that, the speech data that this integrated speech chip can be changed in it to be stored according to individual's preference, thus the phonetic function horn of plenty more of this screen display menu function key made.