CN103617807A - Detectaphone based on voice chip - Google Patents
Detectaphone based on voice chip Download PDFInfo
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- CN103617807A CN103617807A CN201310596410.2A CN201310596410A CN103617807A CN 103617807 A CN103617807 A CN 103617807A CN 201310596410 A CN201310596410 A CN 201310596410A CN 103617807 A CN103617807 A CN 103617807A
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- electrically connected
- voice
- switch
- chip
- pin
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Abstract
The invention discloses a detectaphone based on a voice chip. The detectaphone based on the voice chip comprises a voice singlechip, wherein the voice chip is of an ISD1820 type; a SP+ pin and a SP- pin of the voice singlechip are electrically connected to a positive electrode and a negative electrode of a loudspeaker; a microphone and a through switch are electrically connected to the voice singlechip; the microphone and the voice singlechip are powered by a power supply; a record switch button, a level-triggered play button switch and an edge-triggered play button switch are electrically connected to the voice singlechip; a record light emitting diode indicator lamp is electrically connected to the voice singlechip; one end of a loop playback switch is electrically connected to a power supply circuit of the record light emitting diode indicator lamp; the other end of the loop playback switch is connected to a PLAYE pin of the voice chip. The detectaphone based on the voice chip has eavesdropping, recording and playing functions, is low in equipment cost and small in size after being made into a circuit board.
Description
Technical field:
The present invention relates to interception facility technical field, more specifically to a kind of wiretap that utilizes speech chip to manufacture to form.
Background technology:
ISD1820 type speech chip, has good phonetic function, but it does not possess eavesdropping function.
Summary of the invention:
Object of the present invention is exactly the deficiency for prior art, and the wiretap based on speech chip is provided, the function that it has eavesdropping, recording and plays.Equipment cost is low, make wiring board after volume little.
Technology solution of the present invention is as follows:
Wiretap based on speech chip, comprise language single chip, speech chip is ISD1820 model speech chip, the SP+ pin of language single chip and SP-pin are electrically connected to respectively the both positive and negative polarity of loudspeaker, on language single chip, be electrically connected with microphone and through swtich, power supply is to microphone and speech chip power supply, language single chip is electrically connected with recording switch button, level triggers player button switch and edging trigger player button switch, on language single chip, be electrically connected with recording light emitting diode lamp, loop play switch one end is connected electrically on the current supply circuit of recording light emitting diode lamp, the other end is connected electrically on the PLAYE pin of speech chip.
Described power supply is wiring board AC-DC direct supply or battery.
Beneficial effect of the present invention is:
The function that it has eavesdropping, recording and plays.Equipment cost is low, make wiring board after volume little.
Accompanying drawing explanation:
Fig. 1 is circuit diagram of the present invention.
Embodiment:
Embodiment: as shown in Figure 1, wiretap based on speech chip, comprise language single chip 1, speech chip 1 is ISD1820 model speech chip, the SP+ pin of language single chip 1 and SP-pin are electrically connected to respectively the both positive and negative polarity of loudspeaker P, on language single chip 1, be electrically connected with microphone MIC and through swtich K, power supply is to microphone MIC and speech chip 1 power supply, language single chip 1 is electrically connected with recording switch button K3, level triggers player button K switch 2 and edging trigger player button K switch 1, on language single chip 1, be electrically connected with recording light emitting diode lamp D, loop play K switch 4 one end are connected electrically on the current supply circuit of recording light emitting diode lamp D, the other end is connected electrically on the PLAYE pin of speech chip 1.
Described power supply is wiring board AC-DC direct supply or battery.
Principle of work: by wire, microphone MIC is connected to the region that needs eavesdropping, opens through swtich K, power supply, to microphone MIC and speech chip 1 power supply, can be realized eavesdropping function.In eavesdropping process, opening recording switch button K3 can realize sound-recording function (noting: ISD1820 speech chip can only be recorded 20S as must be the longer time changed other speech chips) and recorded after sound, close through swtich K, by level triggers player button K switch 2 and edging trigger player button K switch 1, can realize playing function; Open loop play K switch 4, can realize loop play function.
Claims (2)
1. the wiretap based on speech chip, comprise language single chip (1), it is characterized in that: speech chip (1) is ISD1820 model speech chip, the SP+ pin of language single chip (1) and SP-pin are electrically connected to respectively the both positive and negative polarity of loudspeaker (P), on language single chip (1), be electrically connected with microphone (MIC) and through swtich (K), power supply is to microphone (MIC) and speech chip (1) power supply, language single chip (1) is electrically connected with recording switch button (K3), level triggers player button switch (K2) and edging trigger player button switch (K1), on language single chip (1), be electrically connected with recording light emitting diode lamp (D), loop play switch (K4) one end is connected electrically on the current supply circuit of recording light emitting diode lamp (D), the other end is connected electrically on the PLAYE pin of speech chip (1).
2. the wiretap based on speech chip according to claim 1, is characterized in that: power supply is wiring board AC-DC direct supply or battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310596410.2A CN103617807A (en) | 2013-11-22 | 2013-11-22 | Detectaphone based on voice chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310596410.2A CN103617807A (en) | 2013-11-22 | 2013-11-22 | Detectaphone based on voice chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103617807A true CN103617807A (en) | 2014-03-05 |
Family
ID=50168510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310596410.2A Pending CN103617807A (en) | 2013-11-22 | 2013-11-22 | Detectaphone based on voice chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103617807A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4631748A (en) * | 1978-04-28 | 1986-12-23 | Texas Instruments Incorporated | Electronic handheld translator having miniature electronic speech synthesis chip |
| US5893064A (en) * | 1997-05-14 | 1999-04-06 | K2 Interactive Llc | Speech recognition method and apparatus with voice commands and associated keystrokes |
| CN2502369Y (en) * | 2001-09-24 | 2002-07-24 | 邱正明 | Speech guide sightseeing tour device |
| CN2692680Y (en) * | 2003-01-06 | 2005-04-13 | 李金雄 | Electrical intelligent speech reporting device |
| CN203689917U (en) * | 2013-11-22 | 2014-07-02 | 苏州博众精工科技有限公司 | Monitor based on voice chip |
-
2013
- 2013-11-22 CN CN201310596410.2A patent/CN103617807A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4631748A (en) * | 1978-04-28 | 1986-12-23 | Texas Instruments Incorporated | Electronic handheld translator having miniature electronic speech synthesis chip |
| US5893064A (en) * | 1997-05-14 | 1999-04-06 | K2 Interactive Llc | Speech recognition method and apparatus with voice commands and associated keystrokes |
| CN2502369Y (en) * | 2001-09-24 | 2002-07-24 | 邱正明 | Speech guide sightseeing tour device |
| CN2692680Y (en) * | 2003-01-06 | 2005-04-13 | 李金雄 | Electrical intelligent speech reporting device |
| CN203689917U (en) * | 2013-11-22 | 2014-07-02 | 苏州博众精工科技有限公司 | Monitor based on voice chip |
Non-Patent Citations (1)
| Title |
|---|
| 李卫华、周湘峻: "最新20秒高音质语音录放电路_ISD1820_李卫华", 《电子世界》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140305 |