CN201479167U - Double-line intelligent telephone - Google Patents
Double-line intelligent telephone Download PDFInfo
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- CN201479167U CN201479167U CN2009201952745U CN200920195274U CN201479167U CN 201479167 U CN201479167 U CN 201479167U CN 2009201952745 U CN2009201952745 U CN 2009201952745U CN 200920195274 U CN200920195274 U CN 200920195274U CN 201479167 U CN201479167 U CN 201479167U
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Abstract
The utility model relates to the field of a telephone, in particular to a wired intelligent telephone capable of receiving two exterior lines simultaneously to realize the communication of three parties. The intelligent telephone comprises a first line access unit, a second line access unit and a public voice and control circuit unit, wherein the signal output ends of the first line access unit and the second line access unit are respectively connected with the public voice and control circuit unit by a first switch and a second switch; the output signals of the first line access unit and the second line access unit are also respectively connected with the two ends of a voice mutual inductive coil, and also connected with a third switch used for controlling and realizing the communication of three parties by the voice mutual inductive coil. The double-line intelligent telephone has simple circuit, low cost, convenient operation and good communication effect, adapts to the demand of the current double-line telephone market and has good economical prospect.
Description
Technical field
The utility model relates to the telephone set technical field, specifically is meant a kind of cord phone that can connect two outside lines realization Three-Way Callings simultaneously.
Background technology
Continuous development and progress along with the fixed line communication technology, the a lot of novelties of the also corresponding release of telecommunications industry are professional easily, the consumer is in order better to enjoy these new business, functional requirement to telephone set itself is also more and more higher, and very service needed is opened the multiple phone line road, need many telephone sets to be used, so not only increased consumer's financial burden, but also taken up room.
Low cost has rope two-wire telephone set, is economizing on resources, reduces cost, is pursuing under the practical condition, the meeting the market requirement generation of meeting the tendency.This telephone set one machine can connect two outside lines simultaneously, can free at any time circuit switched, can realize Three-Way Calling, and easy to use.
But existing two-wire telephone set ubiquity commutation circuit complexity, signal has the bad problem of the tonequality of interference between two lines.
The utility model content
The problem that the utility model need solve provides a kind of can connecing simultaneously between two outside lines realization Three-Way Callings and the two-wire and disturbs the cord phone little, that tonequality is good.
According to the above problem that needs solution, the utility model is taked following technical scheme:
A kind of two-wire smart phone is provided, comprise a line access unit, two wires access unit and public voice and indicative control unit, a described line access unit is connected public voice and indicative control unit by first switch with interlock effect respectively with two wires access unit signal output part with second switch, one line access unit and two wires access unit output signal are connected the two ends of voice mutual inductor again respectively, connect by the voice mutual inductor and are used to control the 3rd switch of realizing Three-Way Calling.
Concrete, a described line access unit comprises a line ringing circuit, line incoming call decoding circuit and the line display control circuit that mutual signal connects; Described two wires access unit comprises two wires ringing circuit, two wires incoming call decoding circuit and the two wires display control circuit that mutual signal connects.Described public voice and control unit comprise governor circuit and connected voice call circuit, hand-free circuit and keyboard circuit.
Concrete, described first switch, second switch with interlock effect is dpdt double-pole double-throw (DPDT) type switch; Described interlock promptly first switch conduction then second switch upspring the then positive and negative power end 2V+ in two wires, 2V-and public positive and negative power supply V+, V-disconnection, and the positive and negative power end 1V+ of a line, 1V-are connected with public positive and negative power supply V+, V-automatically; And 3R2 is connected with 1LED, and HDO is connected with 1-HOLD, and a line signal inserts; Otherwise second switch conducting then first switch two wires signal of upspringing automatically then inserts.
More specifically, described the 3rd switch is realized Three-Way Calling by the button HOLD with conversation stick effect; When Integrated Service Digital Network is talked about, there is incoming call the two wires, and requires and a line carries out Three-Way Calling, then presses the HOLD key, the 23rd pin HDO end output high level of main control chip 3U2, this signal is connected to the positive pole of 1-HOLD and diode 1D23 through first, second switch, and diode 1D23 negative pole connects triode 1Q1 base stage, then triode 1Q1 conducting, thereby triode 1Q2 conducting, one line power supply 1V+, 1V-keep on-state, press second switch then, and the two wires is connected; Press the 3rd switch again, then voice mutual inductor one end is connected with a line negative supply 1V-by the 3rd switch 5 pin, 4 pin, an other end of voice mutual inductor end of the same name is connected with two wires negative supply 2V-, one line and two wires are through the voice mutual inductor, the switched voice signal is realized Three-Way Calling with this machine again.
When converse in the two wires, one line has incoming call, and requirement and two wires carry out Three-Way Calling, then presses " reservation " key, the 23rd pin HDO end output high level of main control chip 3U2, this signal is connected to the positive pole of 2-HOLD and diode 2D23 through first, second switch, and diode 2D23 negative pole connects triode 2Q1 base stage, then triode 2Q1 conducting, thereby triode 2Q2 conducting, two wires power supply 2V+, 2V-keep on-state, press first switch then, and a line is connected; Press the 3rd switch again, then voice mutual inductor one end is connected with two wires negative supply 2V-by the 3rd switch 2 pin, 1 pin, an other end of voice mutual inductor end of the same name is connected with two wires negative supply 1V-, one line and two wires are through the voice mutual inductor, the switched voice signal is realized Three-Way Calling with this machine again.
The utility model is well realized the switching of the circuit of two-wire phone by three mechanical switchs, realizes Three-Way Calling, and circuit is succinct, cost is low, and easy to operate, communication effect good, adapts to present two-wire telephony market demand, has good economic outlook.
Description of drawings
Fig. 1 is that the utility model principle is formed schematic block diagram; Fig. 2 is described public voice and control unit partial circuit and three switch catenation principle figure; Fig. 3 is described public voice and control unit another part circuit theory diagrams; Fig. 4 is the incoming call decoding circuit and the display control circuit principle schematic of a described line, two wires.
Embodiment
The utility model is described in further detail below in conjunction with the embodiment accompanying drawing.
As Fig. 1, the utility model comprises a line access unit, two wires access unit and public voice and indicative control unit, a described line access unit is connected public voice and control unit by first switch with interlock effect respectively with two wires access unit signal output part with second switch, one line access unit and two wires access unit output signal are connected the two ends of voice mutual inductor again respectively, connect by the voice mutual inductor and are used to control the 3rd switch of realizing Three-Way Calling.
As Fig. 2, described first switch and second switch with interlock effect is respectively LINE1 and LINE2, and these two switches adopt the design of disjunctor form, when one of them switch is pressed, the another one switch is the little spring in the position by a dotted line, upsprings automatically, plays the effect of mutual switching.
As Fig. 2, the described voice mutual inductor time utmost point one end is connected with the negative pole of electrochemical capacitor 1E6 with power resistor 1R16, power resistor 1R16, light-emitting diode 1LED3 series connection, the positive pole of light-emitting diode 1LED3 is connected a line positive supply 1V+ simultaneously with the positive pole of electrochemical capacitor 1E6; The inferior utmost point other end of voice mutual inductor is connected with the 3rd switch 5 pin, and the 3rd switch switches pin 4 pin and is connected with a line negative supply 1V-; The elementary end of voice mutual inductor is connected with the negative pole of electrochemical capacitor 2E6 with power resistor 2R16, power resistor 2R16 connects with light-emitting diode 2LED3, light-emitting diode 2LED3 is anodal to be connected two wires positive supply 2V+ simultaneously with electrochemical capacitor 2E6 positive pole, the mutual inductor just other end of the utmost point is connected with the 3rd switch 2 pin, and the 3rd switch switches pin 1 pin and is connected with two wires negative supply 2V-.
As Fig. 2,4, operation principle of the present utility model is: a line phone exchange line is organized the being aligned ringing circuit through bridge rectifier and ring IC (1U1) and peripheral circuit element.During concrete work, if the incoming call fsk signal, then signal enters chip processor 1U2 through the network match circuit that electric capacity 1C6,1C7,1C8, resistance 1R17,1R18,1R19 form, and decodes, and number is presented on the line liquid crystal display screen LCD1; If incoming call is dtmf signal, then signal is through the DTMF decoding circuit of triode 1Q7,1Q8,1Q9, resistance 1R32,1R34,1R35,1R36,1R26, triode 1Q6, electric capacity 1C12 composition, enter chip processor 1U2, decode, and number is presented on the line liquid crystal display screen LCD1.When pressing the first switch LINE1, second switch LINE2 upsprings automatically, the switch contact conversion makes the positive V+ of public power be connected with a line positive supply 1V+, and public negative supply V-is connected with a line negative supply 1V-, and two wires positive supply 2V+, two wires negative supply 2V-all disconnect with the common electric voltage both positive and negative polarity.This moment, switch LINE2 connected a line indicator light 1LED3 and line reservation control pin.Make a line front end line circuit connect public voice and control unit, form complete and independent Integrated Service Digital Network telephone circuit, and two-wire circuit is broken away from from hardware fully, avoid cross-talk and disturbed condition.
In like manner, two wires phone exchange line forms the two wires ringing circuit through bridge rectifier and ring IC (2U1) and peripheral circuit element.The two wires incoming call is as being fsk signal, and then signal enters chip processor 2U2 decoding through the network match circuit that electric capacity 2C6,2C7,2C8, resistance 2R17,2R18,2R19 form, and number is presented on the liquid crystal display screen LCD2 of two wires; If incoming call is dtmf signal, then signal is through the DTMF decoding circuit of triode 2Q7,2Q8,2Q9, resistance 2R32,2R34,2R35,2R36, triode 2Q6, resistance 2R26, electric capacity 2C12 composition, enter chip processor 2U2 and decode, and number is presented on the liquid crystal display screen of two wires.When pressing second switch LINE2, the first switch LINE1 upsprings automatically, the switch contact conversion makes public positive supply V+ be connected with two wires positive supply 2V+, and public negative supply V-is connected with two wires power-2V-, disconnects a line positive supply 1V+ and a line negative supply 1V-simultaneously.This moment, contacting two wires indicator light and the two wires of LINE2 kept control pin.Even two wires front end line circuit is connected public voice and control unit, form complete and independent two-wire circuit, and a line circuit is broken away from from hardware fully, avoid cross-talk and disturbed condition.
When a line is conversed with outside line, click " HOLD " key earlier, make the P23 pin output high level of master control chip 3U2, this signal is through a line diode 1D23, link the base stage of triode 1Q1,1Q1 conducting, its collector potential step-down, then also conducting of triode 1Q2, thus 1V+ and 1V-keep the operate as normal on-state.Press switch LINE2 this moment again, connect the two wires, after the two wires is connected, press the 3rd switch CONF again, then the two ends of voice mutual inductor T1 are linked 1V-and 2V-respectively, thereby the voice mutual inductance circuit is connected, and the voice signal of a line passes to the two wires through voice mutual inductor T1, converse with this machine again, thereby realize three-party talking function.
Shown in Fig. 2,3, described public voice and control unit comprise the receiver receiving circuit of receiver transtation mission circuit, triode 3Q7,3Q8 and peripheral cell composition that hand-free circuit, triode 3Q5,3Q6 and the peripheral cell of governor circuit, switching tube 3Q1,3Q2,3Q3 and take-up switch HOOK composition common switch display control circuit, U3 and peripheral cell composition that chip processor 3U2 and peripheral cell are formed are formed, and receiver receiving circuit, receiver transtation mission circuit are formed the voice call circuit.
Not specifically described partial circuit is prior art in the described telephone set, is not giving unnecessary details at this.
Above-mentioned accompanying drawing embodiment is the preferable implementation of the utility model; in concrete the application; can also on this embodiment circuit base, do a lot of little change and replacements; need to prove, in the simple replacement that does not break away from any conspicuous identical functions circuit under the utility model design prerequisite with change all within the utility model protection range.
Claims (6)
1. two-wire smart phone, comprise a line access unit, two wires access unit and public voice and indicative control unit, it is characterized in that: a described line access unit is connected public voice and indicative control unit by first switch with interlock effect respectively with two wires access unit signal output part with second switch, one line access unit and two wires access unit output signal are connected the two ends of voice mutual inductor again respectively, connect by the voice mutual inductor and are used to control the 3rd switch of realizing Three-Way Calling.
2. two-wire smart phone according to claim 1 is characterized in that: described first switch, second switch with interlock effect is dpdt double-pole double-throw (DPDT) type switch; Described interlock promptly first switch conduction then second switch upspring the positive and negative power end 2V+ in two wires, 2V-and public positive and negative power supply V+, V-disconnection, and the positive and negative power end 1V+ of a line, 1V-are connected with public positive and negative power supply V+, V-automatically; And VC is connected to the 1LED end by resistance, and the HDO end is connected with a line signal triggering end 1-HOLD, and a line signal inserts; Otherwise second switch conducting then first switch two wires signal of upspringing automatically then inserts.
3. two-wire smart phone according to claim 2, it is characterized in that: the described voice mutual inductor time utmost point one end is connected with the negative pole of electrochemical capacitor 1E6 with power resistor 1R16, power resistor 1R16, light-emitting diode 1LED3 series connection, the positive pole of light-emitting diode 1LED3 is connected a line positive supply 1V+ simultaneously with the positive pole of electrochemical capacitor 1E6; The inferior utmost point other end of voice mutual inductor is connected with the 3rd switch 5 pin, and the 3rd switch switches pin 4 pin and is connected with a line negative supply 1V-; The elementary end of voice mutual inductor is connected with the negative pole of electrochemical capacitor 2E6 with power resistor 2R16, power resistor 2R16 connects with light-emitting diode 2LED3, light-emitting diode 2LED3 is anodal to be connected two wires positive supply 2V+ simultaneously with electrochemical capacitor 2E6 positive pole, the mutual inductor just other end of the utmost point is connected with the 3rd switch 2 pin, and the 3rd switch switches pin 1 pin and is connected with two wires negative supply 2V-.
4. two-wire smart phone according to claim 3 is characterized in that: described the 3rd switch is realized Three-Way Calling by the button HOLD with conversation stick effect; When Integrated Service Digital Network is talked about, there is incoming call the two wires, and requires and a line carries out Three-Way Calling, then presses the HOLD button, the 23rd pin HDO end output high level of main control chip 3U2, this signal is connected to the positive pole of 1-HOLD, diode 1D23 through first, second switch, and diode 1D23 negative pole connects triode 1Q1 base stage, then triode 1Q1 conducting, thereby triode 1Q2 conducting, one line power supply 1V+, 1V-keep on-state, press second switch then, and the two wires is connected; Press the 3rd switch again, then voice mutual inductor one end is connected with a line negative supply 1V-by the 3rd switch 5 pin, 4 pin, an other end of voice mutual inductor end of the same name is connected with two wires negative supply 2V-, one line and two wires are through the voice mutual inductor, the switched voice signal is realized Three-Way Calling with this machine again;
When converse in the two wires, one line has incoming call, and Three-Way Calling is carried out in requirement and two wires, when converse in the two wires, one line has incoming call, and Three-Way Calling is carried out in requirement and two wires, then press the HOLD key, the 23rd pin HDO end output high level of main control chip 3U2, this signal is connected to the positive pole of 2-HOLD and diode 2D23 through first, second switch, diode 2D23 negative pole connects triode 2Q1 base stage, then triode 2Q1 conducting, thereby triode 2Q2 conducting, two wires power supply 2V+, 2V-keep on-state, press first switch then, a line is connected; Press the 3rd switch again, then voice mutual inductor one end is connected with two wires negative supply 2V-by the 3rd switch 2 pin, 1 pin, an other end of voice mutual inductor end of the same name is connected with two wires negative supply 1V-, one line and two wires are through the voice mutual inductor, the switched voice signal is realized Three-Way Calling with this machine again.
5. two-wire smart phone according to claim 1 is characterized in that: a described line access unit comprises a line ringing circuit, line incoming call decoding circuit and the line display control circuit that mutual signal connects; Described two wires access unit comprises two wires ringing circuit, two wires incoming call decoding circuit and the two wires display control circuit that mutual signal connects.
6. two-wire smart phone according to claim 1 is characterized in that: described public voice and control unit comprise governor circuit and connected voice call circuit, hand-free circuit and keyboard circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201952745U CN201479167U (en) | 2009-09-18 | 2009-09-18 | Double-line intelligent telephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201952745U CN201479167U (en) | 2009-09-18 | 2009-09-18 | Double-line intelligent telephone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201479167U true CN201479167U (en) | 2010-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201952745U Expired - Fee Related CN201479167U (en) | 2009-09-18 | 2009-09-18 | Double-line intelligent telephone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201479167U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110149445A (en) * | 2019-06-06 | 2019-08-20 | 四川赛科安全技术有限公司 | A kind of fire telephone extension set voice feedback circuit and implementation method |
-
2009
- 2009-09-18 CN CN2009201952745U patent/CN201479167U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110149445A (en) * | 2019-06-06 | 2019-08-20 | 四川赛科安全技术有限公司 | A kind of fire telephone extension set voice feedback circuit and implementation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20140918 |
|
| EXPY | Termination of patent right or utility model |