CN2227852Y - Keyboard couple sounding device - Google Patents
Keyboard couple sounding device Download PDFInfo
- Publication number
- CN2227852Y CN2227852Y CN95236978U CN95236978U CN2227852Y CN 2227852 Y CN2227852 Y CN 2227852Y CN 95236978 U CN95236978 U CN 95236978U CN 95236978 U CN95236978 U CN 95236978U CN 2227852 Y CN2227852 Y CN 2227852Y
- Authority
- CN
- China
- Prior art keywords
- keyboard
- circuit
- pin
- microprocessor
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Input From Keyboards Or The Like (AREA)
Abstract
The utility model relates to a computer peripheral device, particularly a device for identifying keyboard input signals between a keyboard and a host computer, which is mainly composed of a keyboard interface circuit (13), a microcomputer control circuit (15), a voice integrated circuit (16), and a sounding circuit (17), wherein, the keyboard interface circuit (13) is respectively connected with the keyboard (2) and the host computer (3) through two sets of transmission lines (21, 23); the microcomputer control circuit (15) is respectively and electrically connected with the keyboard interface circuit (13), the voice integrated circuit (16), and the sounding circuit (17); the sounding circuit (17) is electrically connected with the voice integrated circuit (16). The utility model is characterized in that a same voice can be output at the same time that the keyboard (2) is input by the existing keyboard (2) without influence of the operation of the host computer (3), and provides another input identifying tool for the keyboard (2).
Description
The utility model relates to a kind of peripherals of computer, specifically is meant between keyboard and host computer, with the device of identification keyboard input signal.
At present, in the input media of computer, the most universal and practical with the use of keyboard, but computer is connected with keyboard, system directly is connected with keyboard through transmission line by the motherboard of computer, and is directly obtained the signal of keyboard by motherboard, with the input control as computer.But this device is for the user who is unfamiliar with keyboard key-position, sense unable to do what one wishes is often arranged on operating speed, its reason nothing more than, user's eyes are absorbed on display screen, keyboard and the input manuscript simultaneously, and notice can't be concentrated, and just often stay cool during input, the user suspects to some extent for operation keyboard button correctness besides, when practical operation, the user must carry out judgment task always, causes can't the heart is in one's hands to arrive.In addition, the blind person then can't be known if input error occurs when using the keyboard input.
The purpose of this utility model provides a kind ofly must not set or control via host computer, and under the situation that does not influence host computer work, when keyboard is keyed in signal, can send the key entry voice simultaneously, in order to the keyboard interlock sound-producing device of identification input signal.
Design proposal of the present utility model is, it is mainly by the keyboard interface circuit, microcomputer control circuit, speech IC, phonation circuit is formed, the keyboard interface circuit links to each other with keyboard, host computer respectively by two groups of transmission lines, microcomputer control circuit is electrically connected with keyboard interface circuit, speech IC and phonation circuit respectively, and phonation circuit is electrically connected with speech IC.
Below in conjunction with accompanying drawing the utility model is described in detail.
Fig. 1 is the outside connection diagram of the utility model;
Fig. 2 is the electric theory diagram of the utility model embodiment;
Fig. 3 is the circuit diagram of the utility model embodiment.
Among the above-mentioned figure, 1-keyboard interlock sound-producing device, 11-socket, 13-keyboard interface circuit, 131,132, the 133-buffer amplifier, 14-function setting circuit, 141-switches set, R
2, R
3, R
4, R
5-resistance, 15-microcomputer control circuit, 151-microprocessor, R
1-resistance, C
1, C
2, C
3, C
4-electric capacity, RTCC, VDD, N/C, VSS, RA
0～RA
3, RB
0～RB
7, NCLR, OSC
1, OSC
2, RC
7～RC
0-micro processor leg, 16-speech IC, D
0-D
7, WEB, VDD, LED, OSC, AUD, VSS, BUSY-speech IC pin, 17-phonation circuit, 171-triode switch, 172-loudspeaker, the 173-light emitting diode, R-resistance, 2-keyboard, 21, the 23-transmission line, the 22-plug, 24-socket, 3-host computer.
Embodiment:
Referring to Fig. 1, the transmission line (21) that is connected with keyboard (2) is connected with plug (22) respective point, plug (22) fastens with the socket (11) of the utility model-keyboard interlock sound-producing device (1), keyboard (2) signal is after the utility model-keyboard interlock sound-producing device (1) is handled, export through transmission line (23), and be fastened and connected by the plug (24) of transmission line (23) socket with host computer (3), promptly finish the installation before computer uses.
Referring to Fig. 2, the utility model is by keyboard interface circuit (13), function setting circuit (14), microcomputer control circuit (15), speech IC (16) and phonation circuit (17) are formed, it is characterized in that, keyboard interface circuit (13) links to each other with keyboard (2), host computer (3) respectively by two groups of transmission lines (21,23), and microcomputer control circuit (15) is electrically connected phonation circuit (17) with keyboard interface circuit (13), function setting circuit (14), speech IC (16) and phonation circuit (17) respectively and is electrically connected with speech IC (16).
Referring to Fig. 3, keyboard interface circuit (13) is made up of three buffer amplifiers (131,132,133), it is between keyboard (2) and host computer (3), two input ends of its buffer amplifier (131) link to each other with keyboard (2) by transmission line (21), its two output terminal links to each other with two input ends of buffer amplifier (132,133), two output terminals of buffer amplifier (132) link to each other with host computer (3) by transmission line (23), two output terminals of buffer amplifier (133) respectively with the pin (RB of the microprocessor (151) of computer-controlled circuit (15)
0, RB
1) connect.
Function setting circuit (14) is by a switches set (141) and four resistance (R
2～R
5) be electrically connected and form four resistance (R
2～R
5) parallel connection, the one end respectively with four contacts and microprocessor (151) pin (RA of switches set (141)
0～RA
3) connect four resistance (R
2～R
5) common point and the transmission line of the other end (loudspeaker (172) one ends and speech IC (16) pin (VDD), light emitting diode (173) and an end of resistance (R) of a heart yearn of 21,231, microprocessor (151) pin (VDD), phonation circuit (17) are connected, the common point of four contacts in addition of switches set (141) and the electric capacity (C of microcomputer control circuit (15)
1～C
4) an end and microprocessor (151) pin (RTCC, VSS) connect.
Microcomputer control circuit (15) is by microprocessor (151), resistance (R
1), electric capacity (C
1～C
4) form its electric capacity (C
1) and resistance (R
1) series connection, Chuan Lian electric capacity (C simultaneously
1) and resistance (R
1) and electric capacity (C
2) parallel connection, resistance (R
1) the other end be connected electric capacity (C with microprocessor (151) pin (NCLR)
3) and electric capacity (C
4) common point connect microprocessor (151) pin (VSS), its electric capacity (C
3) and electric capacity (C
4) the other end meet microprocessor (151) pin (OSC respectively
1, OSC
2), microprocessor (151) pin (RC
7～RC
0, RB
7, RB
6) respectively with speech IC (16) pin (D
0～D
7, WEB, BUSY) connect.
Speech IC (16) pin (VDD, LED, OSC, AUD, VSS) is connected the grounded emitter of triode switch (171) with an end and an end of microprocessor (151) pin (VDD), light emitting diode (173), an end of resistance (R), the base stage of triode switch (171), the emitter of triode switch (171) of the loudspeaker (172) of phonation circuit (17) respectively.
Phonation circuit (17) is made up of loudspeaker (172), light emitting diode (173), resistance (R), triode switch (171), and the other end of loudspeaker (172) is connected with the collector of triode switch (171).
The course of work of the present utility model is, obtain the keying signal of being exported by keyboard (2) when keyboard interface circuit (13), import via buffer amplifier (131), by buffer amplifier (132,133) signal is exported to respectively in host computer (3) and the microcomputer control circuit (15) respectively again, wherein buffer amplifier (131,132,133) not only can not form the burden of host computer (3) or keyboard (2), can make the function that the signal noise is exempted and tool amplifies signal on the contrary, the signal that keyboard (2) is sent is more stable.
The signal input control that function setting circuit (14) is expanded as microcomputer control circuit (15) function by switches set (141).
Microcomputer control circuit (15), the signal that the function that is obtained by switches set (141) expands expands as function, and obtains keying signal by the buffer amplifier (133) of keyboard interface circuit (13), and after microprocessor (151) is handled, by its output pin (RC
0～RC
7) the output key sign indicating number is to the input pin (D of speech IC (16)
0～D
7).
Speech IC (16) is obtained the key set code by microcomputer control circuit (15) output, to the corresponding address of memory internal body, read the voice data, and export the voice data to phonation circuit (17), and this memory internal body also can be substituted by external memory body, do outside the selection, send different voice.
Phonation circuit (17) is obtained speech IC (16) output voice data, via the sound control of triode switch (17) as loudspeaker (172), and utilizes light emitting diode (173) as signal output indication.
Flow process action of the present utility model is, when keyboard (2) pushes button, promptly obtain keyboard (2) signal, on the one hand export keyboard (2) signal to host computer (3), differentiate keyboard (2) key value simultaneously, read the corresponding voice data of keyboard (2) key value again after, output voice data and pronunciation, whether whether differentiating button again and decontrol, is then to finish, decontrol otherwise be back to the differentiation button.
The utility model is under the situation that does not influence host computer (3) work, utilize existing keyboard (2), in keyboard (2) input, can export a same voice, the identification facility of another kind of keyboard (2) input is provided, use computer to have more practicality and convenience for the blind person, be used for juvenile's computer teaching, can receive the double-deck effect of education and entertainment.
Claims (7)
1, a kind of keyboard interlock sound-producing device (1), it is characterized in that, it is by keyboard interface circuit (13), microcomputer control circuit (15), speech IC (16) and phonation circuit (17) are formed, keyboard interface circuit (13) links to each other with host computer (3) with keyboard (2) respectively by two groups of transmission lines (21,23), microcomputer control circuit (15) is electrically connected with keyboard interface circuit (13), speech IC (16) and phonation circuit (17) respectively, and phonation circuit (17) is electrically connected with speech IC (16).
2, keyboard interlock sound-producing device according to claim 1 (1), it is characterized in that, keyboard interface circuit (13) is by three buffer amplifiers (131,132,133) form, between keyboard (2) and host computer (3), two input ends of its buffer amplifier (131) link to each other with keyboard (2) by transmission line (21), its two output terminal and buffer amplifier (132,133) two input ends link to each other, two output terminals of buffer amplifier (132) link to each other with host computer (3) by transmission line (23), two output terminals of buffer amplifier (133) respectively with the pin (RB of the microprocessor (151) of microcomputer control circuit (15)
0, RB
1) connect.
3, keyboard interlock sound-producing device according to claim 1 (1) is characterized in that microcomputer control circuit (15) is by microprocessor (151), resistance (R
1), electric capacity (C
1～C
4) form its electric capacity (C
1) and resistance (R
1) series connection, Chuan Lian electric capacity (C simultaneously
1) and resistance (R
1) and electric capacity (C
2) parallel connection, resistance (R
1) an other end be connected electric capacity (C with microprocessor (151) pin (NCLR)
3) and electric capacity (C
4) common point connect microprocessor (151) pin (VSS), its electric capacity (C
3) and electric capacity (C
4) the other end meet microprocessor (151) pin (OSC respectively
1, OSC
2), microprocessor (151) pin (RC
7～RC
0, RB
7, RB
6) respectively with speech IC (16) pin (D
0～D
7, WEB, BUSY) connect.
4, keyboard interlock sound-producing device according to claim 1 (1), the pin (VDD, LED, OSC, AUD, VSS) that it is characterized in that speech IC (16) respectively with an end of an end of the loudspeaker (172) of phonation circuit (17) and microprocessor (151) pin (VDD), light emitting diode (173), one end of resistance (R), the base stage of triode switch (171), the emitter of triode switch (171) connects, the grounded emitter of triode switch (171).
5, keyboard interlock sound-producing device according to claim 1 (1), it is characterized in that phonation circuit (17) is made up of loudspeaker (172), light emitting diode (173), resistance (R), triode switch (171), the other end of loudspeaker (172) is connected with the collector of triode switch (171).
6, keyboard interlock sound-producing device according to claim 1 (1) is characterized in that microcomputer control circuit (15), can set up a function setting circuit (14), and it is by switches set (141) and four resistance (R
2～R
5) be electrically connected and form four resistance (R
2～R
5) parallel connection, the one end respectively with four contacts and microprocessor (151) pin (RA of switches set (141)
0～RA
3) connect four resistance (R
2～R
5) a heart yearn, microprocessor (151) pin (VDD), loudspeaker (172) one ends and speech IC (16) pin (VDD), light emitting diode (173) and the end of resistance (R) of phonation circuit (17) of common point and transmission line (21,23) of the other end be connected the common point of four contacts in addition of switches set (141) and the electric capacity (C of microcomputer control circuit (15)
1～C
4) an end and microprocessor (151) pin (RTCC, VSS) connect the signal input of expanding as microcomputer control circuit (15) function.
7, keyboard interlock sound-producing device according to claim 1 (1) is characterized in that keyboard interface circuit (13), microcomputer control circuit (15) and speech IC (16), capable of being combinedly in case of necessity becomes a circuit to use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95236978U CN2227852Y (en) | 1995-06-12 | 1995-06-12 | Keyboard couple sounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95236978U CN2227852Y (en) | 1995-06-12 | 1995-06-12 | Keyboard couple sounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2227852Y true CN2227852Y (en) | 1996-05-22 |
Family
ID=33879831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95236978U Expired - Fee Related CN2227852Y (en) | 1995-06-12 | 1995-06-12 | Keyboard couple sounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2227852Y (en) |
-
1995
- 1995-06-12 CN CN95236978U patent/CN2227852Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105608953A (en) | Intelligent electronic piano teaching system | |
| WO1985000260A1 (en) | Multiplexer | |
| CN201955956U (en) | Mutual converter for sentence and voice for deaf mute to be communicated with outside | |
| CN2227852Y (en) | Keyboard couple sounding device | |
| CN106710488A (en) | Two-dimensional code based safety enhancement scenery spot interpretation system | |
| CN1118748C (en) | Multimedia teaching Qin | |
| CN207366747U (en) | A kind of Big Dipper RDSS beaconing terminals | |
| CN201994926U (en) | Computer finger-print switch | |
| CN2210442Y (en) | Device for learning staff with sound-emitter | |
| CN2578898Y (en) | Studying device with digital scanning pen | |
| CN2544363Y (en) | Card used children study apparatus | |
| CN2382062Y (en) | Enhanced fingering twin keyboards | |
| CN219286026U (en) | Connecting device | |
| TWI276045B (en) | Integrated cradle for index-type Karaoke selection remote control | |
| CN2479573Y (en) | Keyboard | |
| CN2242493Y (en) | Computerized standard examination apparatus | |
| CN210294835U (en) | Three-axis stepping motor motion control card | |
| CN2174754Y (en) | Portable studying device for languages | |
| CN2317502Y (en) | Modulator-demodulator connecting to universal computer | |
| CN2228675Y (en) | Multi-function learning toy for baby and children | |
| CN2650269Y (en) | Computer principle teaching experiment instrument | |
| CN207281679U (en) | A kind of compact-sized industrial host computer | |
| CN2195121Y (en) | Intelligent problem solving machine for child | |
| CN2282711Y (en) | Infant learning appliance | |
| CN2097421U (en) | Microcomputer multipurpose instrument for scoring, quiz, timing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |