CN2179995Y - Automatic repeated record-replay equipment - Google Patents
Automatic repeated record-replay equipment Download PDFInfo
- Publication number
- CN2179995Y CN2179995Y CN 93228859 CN93228859U CN2179995Y CN 2179995 Y CN2179995 Y CN 2179995Y CN 93228859 CN93228859 CN 93228859 CN 93228859 U CN93228859 U CN 93228859U CN 2179995 Y CN2179995 Y CN 2179995Y
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Abstract
The utility model belongs to a solid recorder, which is composed of a voice synthesis circuit, a dynamic memory, a playback amplifier, a timing control circuit, a recording amplifier, a microphone and a loudspeaker. The solid recorder can repeatedly carry out playback in a timing way, and the repeated times can be unlimited. The solid recorder can carry out playback automatically in an unattended way and can also carry out playback manually. The solid recorder does not use recording tapes and is not provided with mechanical driving components, and therefore, failures are not easy to occur. The utility model has the advantages of long service life, simple operation, small volume, low cost and convenient carrying, and is suitable for various power supplies like alternating current power supplies and direct current power supplies.
Description
The utility model belongs to a kind of speech synthetic device, particularly a kind of solid-state videocorder.
The energy recording voice signal that present people use always, and the equipment that plays back again when needed mainly is blattnerphone.It mainly is made of casing, tape, magnetic head, mechanical transmission component and audio circuit etc.This sound-track engraving apparatus is whenever pressed the single step of releasing key, and the content that is recorded on the tape can only be play once.If need to play again, must first rewinding playback again, play again repeatedly as need, then must repeat to press playback button and rewind key continually, complex operation, and also magnetic head, tape wear and tear easily, and mechanical transmission component breaks down easily.
Invention of the present utility model, purpose are to provide the small-sized videocorder of the automatic playback of a kind of energy.
Automatically repeating cassette player is made up of sound-compound-circuit, dynamic memor, playback amplifier, timing control circuit, recording amplifier, microphone and loudspeaker.The REC, the PLAY pin that it is characterized in that sound-compound-circuit pass through record button K respectively
1, player button K
2With hot end V
DDJoin, the PLAY pin also links to each other with the output terminal of timing control circuit simultaneously, and the recording playback indication end BU pin of sound-compound-circuit links to each other with the input end of timing control circuit, and the indication end of recording playback simultaneously BU pin links to each other with ground with LED by resistance R.The recording amplifier input end links to each other with microphone, the recording amplifier output terminal links to each other with the input end of analog signal INA of sound-compound-circuit, the output terminal of playback amplifier links to each other with loudspeaker, the input end of playback amplifier links to each other with the analog signal output OUTA of sound-compound-circuit, and dynamic memor links to each other with sound-compound-circuit.
The utility model can regularly repeat playback, and number of times is unlimited.Avoided the trouble of blattnerphone by manually-operated control playback, also having overcome other speech synthetic device can not automatic unlimited playback, control time shortcoming at interval on demand, but the automatic playback of unmanned, also manually playback can be saved people's plenty of time.So this machine does not use audiotape, does not have difficult fault, the long service life of producing of mechanical drive disk assembly.This machine operation is simple, volume is little, cost is low, easy to carry, applicable to exchange, the various power supplys of direct current.
Accompanying drawing 1 is the circuit theory diagrams of automatic videocorder.
Accompanying drawing 2 is the timing control circuit schematic diagram.
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
Shown in accompanying drawing 1,2, automatically repeat videocorder and be made up of sound-compound-circuit ［ 5 ］, dynamic memor ［ 1 ］, playback amplifier ［ 2 ］, timing control circuit ［ 4 ］, recording amplifier ［ 3 ］, microphone ［ 6 ］ and loudspeaker ［ 7 ］, REC, the PLAY pin of sound-compound-circuit ［ 5 ］ pass through K switch respectively
1, K
2With hot end V
DDLink to each other, the PLAY pin also links to each other with timing control circuit ［ 4 ］ output terminal simultaneously, and the STOP pin of sound-compound-circuit ［ 5 ］ is by stop button K
3Link to each other with ground.The BU pin of sound-compound-circuit ［ 5 ］ is through automatic/hand switch K
4Link to each other with timing control circuit ［ 4 ］ input end, the BU pin links to each other with ground with LED by resistance R simultaneously, recording amplifier ［ 3 ］ input end links to each other with microphone ［ 6 ］, recording amplifier ［ 3 ］ output terminal links to each other with the input end of analog signal INA of sound-compound-circuit ［ 5 ］, the output terminal of playback amplifier ［ 2 ］ links to each other with loudspeaker ［ 7 ］, playback amplifier ［ 2 ］ input end links to each other with the analog signal output OUTA of sound-compound-circuit ［ 5 ］, dynamic memor ［ 1 ］ links to each other with sound-compound-circuit ［ 5 ］, and foregoing circuit is arranged in the videocorder casing.
Above-mentioned timing control circuit ［ 4 ］ can adopt circuit as shown in Figure 2, series capacitance C between its input end and the node 1
1, be connected resistance R between the node 1 and 4
1, between node 1 and the output terminal 2 Sheffer stroke gate F is set
1, the capacitor C of connecting between node 3 and the output terminal
2, a variable resistor R connects between node 3 and the ground
2, connect a Sheffer stroke gate F between the node 3 and 4
2
Timing control circuit ［ 4 ］ also can adopt other timing circuit or devices such as the integrated monostable time delay circuit or the time relay.
Sound-compound-circuit among Fig. 1 ［ 5 ］ can adopt chips such as YYH series, and dynamic memor ［ 1 ］ can adopt 41256 chips.
When repeating videocorder recording and playback automatically, at first click record button K
1, the recording playback indication end BU of sound-compound-circuit ［ 5 ］ is high level, and then LED is luminous, the recording beginning.Voice signal is sent in the sound-compound-circuit ［ 5 ］ through recording amplifier ［ 3 ］ by microphone ［ 6 ］, voice analog signal is converted to corresponding data-signal deposits in the dynamic memor ［ 1 ］.During End of Tape, recording playback indication end BU is low level, and LED extinguishes, and timing control circuit begins regularly.Timing is by resistance R
1, R
2, capacitor C
1, C
2The common decision of value can be by regulating resistance R
2, come setting up time at interval.Time one arrives, then timing control circuit ［ 4 ］ output terminal is exported a positive pulse to the PLAY end, playback is begun, sound-compound-circuit ［ 5 ］ is read speech data signal from dynamic memor ［ 1 ］, and convert voice analog signal to and send in the playback amplifier ［ 2 ］, broadcast by loudspeaker ［ 7 ］, when playback simultaneously began, recording playback indication end BU was a high level, and LED is luminous once more, when playback finishes, timing control circuit ［ 4 ］ is restarted timing, repeats above-mentioned playback process again, so goes round and begins again, automatically repeat videocorder and just ceaselessly repeat playback, up to disconnecting automatic/hand switch K
4Till.Also can use player button K in addition
2At any time playback.
Claims (3)
1, a kind of automatic repetition videocorder, it comprises sound-compound-circuit, dynamic memor, playback amplifier, timing control circuit, recording amplifier, microphone and loudspeaker composition, it is characterized in that the REC of sound-compound-circuit, PLAY pin pass through record button K respectively
1, player button K
2With hot end V
DDJoin, the PLAY pin also links to each other with the output terminal of timing control circuit simultaneously, the recording playback indication end BU pin of sound-compound-circuit links to each other with the input end of timing control circuit, the indication end of recording playback simultaneously BU pin links to each other with ground with LED by resistance R, the recording amplifier input end links to each other with microphone, the recording amplifier output terminal links to each other with the input end of analog signal INA of sound-compound-circuit, the output terminal of playback amplifier links to each other with loudspeaker, the input end of playback amplifier links to each other with the analog signal output OUTA of sound-compound-circuit, and dynamic memor links to each other with sound-compound-circuit.
2, automatic repetition cassette player as claimed in claim 1 is characterized in that series capacitance C between timing control circuit ［ 4 ］ input end and the node 1
1, be connected resistance R between the node 1 and 4
1, between node 1 and the output terminal 2 Sheffer stroke gate F is set
1, the capacitor C of connecting between node 3 and the output terminal
2, a variable resistor R connects between node 3 and the ground
2, connect a Sheffer stroke gate F between the node 3 and 4
2
3, automatic repetition cassette player as claimed in claim 2, the BU pin that it is characterized in that sound-compound-circuit is through automatic/hand switch K
4Link to each other with the timing control circuit input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93228859 CN2179995Y (en) | 1993-07-28 | 1993-07-28 | Automatic repeated record-replay equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93228859 CN2179995Y (en) | 1993-07-28 | 1993-07-28 | Automatic repeated record-replay equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2179995Y true CN2179995Y (en) | 1994-10-19 |
Family
ID=33805829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93228859 Expired - Fee Related CN2179995Y (en) | 1993-07-28 | 1993-07-28 | Automatic repeated record-replay equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2179995Y (en) |
-
1993
- 1993-07-28 CN CN 93228859 patent/CN2179995Y/en not_active Expired - Fee Related
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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 |