CN2617093Y - Telephone busy call back one-key-through controller - Google Patents

Abstract

The utility model discloses a busy connecting call back phone PTT controller, which relates to a telephone annex, in particular to a busy connecting call back controller in a telephone. One switch terminal of a electronic pulse switch (K1) is connected with one wiring terminal of a household telephone-line (5) by (5-1); the other switch terminal of the electronic pulse switch (K1) is connected with one wiring terminal of the telephone (6) by a cable wiring (6-1); two power input terminals of the rectifier circuit (1) are connected with the two wring terminals of the telephone; the output terminal of the rectifier circuit is connected with the signal input terminal of a control switch circuit (2); the control signal input terminal of the control switch circuit is connected with the control signal output terminal of a code and control circuit (4); the high electronic potential pulse signal output terminal of the code and control circuit is connected with the high electronic potential pulse signal input terminal of a electronic pulse switch (K1); the signal input terminal of the code and control circuit are connected with the two ends of a constant-opening button (T1).

Description

Phone calling back when busy PTT controller

Technical field: the utility model relates to a kind of telephone set annex, is specifically related to a kind of calling back when busy controller that links to each other with telephone set.

Background technology: along with the develop rapidly of telecommunication technology, the function of subsets is more and more, existing telephony switching gear is all supported user's calling back when busy function, when being the caller dialing, as called subscriber busy, can realize the calling back when busy function by the hook switch of telephone set and the operation of button, but these concrete operations implement very trouble, for example during called subscriber busy, click telephone hook switch earlier, and then by several default keys, and require to be controlled between the 100ms-300ms by the time requirement of hook switch, the general user is difficult to grasp, though telephony switching gear provides this function, the actual user who uses seldom.

The utility model content: the utility model provides a kind of phone calling back when busy PTT controller, it can save the loaded down with trivial details operation of user, as long as click one strong, can finish the application work of " calling back when busy ", convenient, fast, saved a large amount of time of user.The utility model is by the electronic impulse K switch ₁, rectification circuit 1, control switch circuit 2, amplifying circuit 3, signaling and control circuit 4, often open button T ₁Form the electronic impulse K switch ₁A switch terminals be connected the electronic impulse K switch by connecting line 5-1 with terminals of phone house lead in 5 ₁Another switch terminals be connected by connecting line 6-1 with terminals of telephone set 6, another terminals of phone house lead in 5 directly are connected by connecting line 5-2 with another terminals of telephone set 6, answer the call two terminals of machine 6 of two power inputs of rectification circuit 1, the input of the output termination control switch circuit 2 of rectification circuit 1, the signal output part of control switch circuit 2 is connected with the signal input part of amplifying circuit 3, the signal input end of control switch circuit 2 is connected with the control signal output ends of signaling and control circuit 4, the high level pulse signal output part of signaling and control circuit 4 and electronic impulse K switch ₁The high level pulse signal input part be connected, the code signal output of signaling and control circuit 4 is connected with the code signal input of amplifying circuit 3, often opens button T ₁Two ends be connected with the signal input part of signaling and control circuit 4 respectively.Loaded down with trivial details button operation when the utility model has been exempted calling back when busy, only need be good for and can finish all operations by one, convenient and swift, saved a large amount of time to the user, and not needing can be not bad because of holding by the time of phone hook switch by the phone hook switch, and can not be successful.

Description of drawings: Fig. 1 is an overall structure schematic block diagram of the present utility model, and Fig. 2 is the electrical block diagram of embodiment one.

Embodiment one: this embodiment as shown in Figure 2, it is by the electronic impulse K switch ₁, rectification circuit 1, control switch circuit 2, amplifying circuit 3, signaling and control circuit 4, often open button T ₁Form the electronic impulse K switch ₁Select the V414S model for use, the electronic impulse K switch ₁Switch terminals 4 pin be connected the electronic impulse K switch by connecting line 5-1 with terminals of phone house lead in 5 ₁Another switch terminals 6 pin be connected by connecting line 6-1 with terminals of telephone set 6, another terminals of phone house lead in 5 directly are connected by connecting line 5-2 with another terminals of telephone set 6, answer the call two terminals of machine 6 of two power inputs of rectification circuit 1, the signal input part of the output termination control switch circuit 2 of rectification circuit 1, the signal output part of control switch circuit 2 is connected with the signal input part of amplifying circuit 3, the signal input end of control switch circuit 2 is connected with the control signal output ends of signaling and control circuit 4, the high level pulse signal output part of signaling and control circuit 4 and electronic impulse K switch ₁The high level pulse signal input part be connected, the code signal output of signaling and control circuit 4 is connected with the code signal input of amplifying circuit 3, often opens button T ₁Two ends be connected with the signal input part of signaling and control circuit 4 respectively.

Described rectification circuit 1 as shown in Figure 2, it is by three capacitor C ₁-C ₃, rectifier bridge DD ₁, diode D ₁, voltage-stabiliser tube DW ₁, two resistance R ₁-R ₂Form rectifier bridge DD ₁Answer the call two inputs of machine 6 of two power inputs, rectifier bridge DD ₁Two inputs respectively through capacitor C ₁, C ₂Ground connection, rectifier bridge DD ₁Earth terminal ground connection, rectifier bridge DD ₁Power output end meet voltage-stabiliser tube DW ₁Negative pole, voltage-stabiliser tube DW ₁Anodal connecting resistance R ₁An end, resistance R ₁Another terminating diode D ₁Positive pole, resistance R ₂An end and capacitor C ₃An end, diode D ₁Negative pole meet power supply+Ec, capacitor C ₃And resistance R ₂Other end ground connection all.

Described control switch circuit 2 as shown in Figure 2, it is by four resistance R ₃-R ₆, three triode Q ₁-Q ₃Form triode Q ₁The emitter power output end that connects rectification circuit 1 be DW ₁Negative pole, triode Q ₁Emitter connecting resistance R ₃, R ₄An end, resistance R ₃Another termination triode Q ₁Base stage and triode Q ₂Emitter, triode Q ₂Collector connecting transistor Q ₁Collector electrode, triode Q ₂Base stage connecting resistance R ₄The other end and resistance R ₅An end, resistance R ₅Another termination triode Q ₃Collector electrode, triode Q ₃Grounded emitter, triode Q ₃Base stage through resistance R ₆Be connected with the control signal output ends of signaling and control circuit 4.

Described amplifying circuit 3 as shown in Figure 2, it is by three resistance R ₇-R ₉, four capacitor C ₄-C ₇, two diode D ₂, D ₃, voltage-stabiliser tube DW ₂, battery pack M, triode Q ₄Form, battery pack M selects 4.5V dc-battery group, resistance R for use ₇A termination triode Q ₄Collector electrode and control switch circuit 2 in triode Q ₁Collector electrode, resistance R ₇Another termination voltage-stabiliser tube DW ₂Negative pole, capacitor C ₄An end and diode D ₂Positive pole, voltage-stabiliser tube DW ₂Plus earth, capacitor C ₄Other end ground connection, diode D ₂Negative pole connect capacitor C ₅, C ₆An end, diode D ₃Negative pole and power supply+Ec, diode D ₃Positive pole connect the positive pole of battery pack M, the minus earth of battery pack M, capacitor C ₅, C ₆Other end ground connection all; Triode Q ₄Emitter through resistance R ₉Ground connection, triode Q ₄Base stage connecting resistance R ₈An end and capacitor C ₇An end, resistance R ₈And capacitor C ₇Other end sending and receiving sign indicating number and the code signal output of control circuit 4.

Described signaling and control circuit 4 as shown in Figure 2, it is by single-chip microcomputer U ₁, crystal oscillator X ₁, two triode Q ₅, Q ₆, nine capacitor C ₈-C ₁₆, nine resistance R ₁₀-R ₁₈Form single-chip microcomputer U ₁Select the EM78P806A model for use, crystal oscillator X ₁Select the crystal oscillator of 32.768KHz for use, crystal oscillator X ₁Two ends meet single-chip microcomputer U ₁13,14 pin, single-chip microcomputer U ₁13,14 pin respectively through capacitor C ₉, C ₁₀Ground connection; Single-chip microcomputer U ₁High level pulse signal output part 98 pin and electronic impulse K switch ₁Control end 1 pin be connected; Single-chip microcomputer U ₁Control signal output ends 87 pin and the signal input part of control switch circuit 2 be resistance R ₆An end be connected; Single-chip microcomputer U ₁Power end 90 pin meet power supply+Ec, single-chip microcomputer U ₁16 foot meridian capacitor C ₈Meet power supply+Ec, single-chip microcomputer U ₁16 pin through resistance R ₁₀Meet single-chip microcomputer U ₁15 pin; Single-chip microcomputer U ₁40,6,39 pin ground connection all, single-chip microcomputer U ₁10 pin through resistance R ₁₁Ground connection; Single-chip microcomputer U ₁11,12,92 pin unsettled; Single-chip microcomputer U ₁Signal input part 93,82 pin connect respectively and often open button T ₁Two ends; Single-chip microcomputer U ₁17 pin connect capacitor C ₁₅An end and resistance R ₁₈An end, capacitor C ₁₅Other end ground connection, resistance R ₁₈Another termination power+Ec, single-chip microcomputer U ₁9 pin connect capacitor C ₁₃An end and resistance R ₁₇An end, capacitor C ₁₃Another termination capacitor C ₁₂, capacitor C ₁₄An end, capacitor C ₁₂The other end meet single-chip microcomputer U ₁8 pin, capacitor C ₁₄Another termination power+Ec; Single-chip microcomputer U ₁Reset signal end 91 pin connect capacitor C ₁₁An end, resistance R ₁₂An end, triode Q ₅Collector electrode and resistance R ₁₅An end, capacitor C ₁₁The other end and triode Q ₅Grounded emitter, resistance R ₁₂Another termination power+Ec, triode Q ₅Base stage connecting resistance R ₁₃An end and triode Q ₆Collector electrode, triode Q ₆Grounded emitter, resistance R ₁₃Another termination power+Ec, triode Q ₆Base stage connecting resistance R ₁₄, R ₁₅, R ₁₆An end and capacitor C ₁₆An end, resistance R ₁₆And capacitor C ₁₆Other end ground connection, resistance R ₁₄Another termination power+Ec; Single-chip microcomputer U ₁The dtmf code signal output part 7 pin dtmf code signal input part that connects amplifying circuit 3 be resistance R ₈The other end.When this embodiment makes the user use calling back when busy, only need click T ₁Be good for and can finish setting, exempted loaded down with trivial details button operation, also do not want hooking, convenient for users.

Embodiment two: as shown in Figure 2, this embodiment is that with the difference of embodiment one it has increased by one and has often opened button T ₂, T ₂Two ends meet single-chip microcomputer U respectively ₁ Signal input part 93,83 pin.Other composition is identical with embodiment one with annexation.Increase by one and often open button T ₂The calling back when busy that has made things convenient for user's cancellation to apply for.

Operation principle: under stand-by state at ordinary times, the electronic impulse K switch ₁4,6 pin connect, control switch circuit 2 no powers, this moment, telephone set 6 kept being connected normally with phone house lead in 5, can carry out proper communication.Hear the other side's busy tone after subscriber dialing, illustrate that the other user is just busy, this moment, the user can click T ₁Strong is calling back when busy application key, when having pressed T ₁Strong back single-chip microcomputer U ₁98 pin at first export the high level pulse of a 100ms-300ms, control electronic impulse K switch ₁4,6 pin disconnect 100ms-300ms, single-chip microcomputer U then ₁87 pin output high level, make circuit turn-ons in the control switch circuit 2, simultaneously single-chip microcomputer U ₁The dtmf code of 7 pin output " *, 5,9, # " four numbers, this code signal sends back in the telephone line through amplifying circuit 3, control switch circuit 2 and rectification circuit 1, after signaling is finished, 87 pin output low levels, control switch circuit 2 is closed, make circuit revert to stand-by state, the whole calling back when busy function of hanging up can be finished, and has reduced or remitted the loaded down with trivial details operation of user.When the user need cancel call back on busy service, first off-hook only need click T then ₂Key, single-chip microcomputer U at this moment ₁87 pin output high level, control switch circuit 2 is connected, simultaneously single-chip microcomputer U ₁7 pin output " #, 5,9, # " four dtmf codes, this code signal is delivered in the phone house lead in through amplifying circuit 3, control switch circuit 2, rectification circuit 1, and 87 pin output low levels after signaling is finished are closed control switch circuit 2, on-hook can be cancelled call back on busy service.Because the telephone key-press signal of the needed input of different calling back when busy of telco switch may be different, the change of these inputs can be passed through single-chip microcomputer U ₁Programming change, to adapt to different input requirements.

Claims (6)

1, phone calling back when busy PTT controller is characterized in that it is by electronic impulse switch (K ₁), rectification circuit (1), control switch circuit (2), amplifying circuit (3), signaling and control circuit (4), two often open button (T ₁) form electronic impulse switch (K ₁) a switch terminals be connected electronic impulse switch (K by connecting line (5-1) with terminals of phone house lead in (5) ₁) another switch terminals be connected by connecting line (6-1) with terminals of telephone set (6), another terminals of another terminals of phone house lead in (5) and telephone set (6) directly are connected by connecting line (5-2), answer the call two terminals of machine (6) of two power inputs of rectification circuit (1), the input of the output termination control switch circuit (2) of rectification circuit (1), the signal output part of control switch circuit (2) is connected with the signal input part of amplifying circuit (3), the signal input end of control switch circuit (2) is connected with the control signal output ends of signaling and control circuit (4), the high level pulse signal output part of signaling and control circuit (4) and electronic impulse switch (K ₁) the high level pulse signal input part be connected, the code signal output of signaling and control circuit (4) is connected with the code signal input of amplifying circuit (3), often opens button (T ₁) two ends be connected with the signal input part of signaling and control circuit (4) respectively.

2, phone calling back when busy PTT controller according to claim 1 is characterized in that described rectification circuit, and it is by three electric capacity (C ₁)-(C ₃), rectifier bridge (DD ₁), diode (D ₁), voltage-stabiliser tube (DW ₁), two resistance (R ₁)-(R ₂) form rectifier bridge (DD ₁) answer the call two inputs of machine (6) of two power inputs, rectifier bridge (DD ₁) two inputs respectively through electric capacity (C ₁), (C ₂) ground connection, rectifier bridge (DD ₁) earth terminal ground connection, rectifier bridge (DD ₁) power output end meet voltage-stabiliser tube (DW ₁) negative pole, voltage-stabiliser tube (DW ₁) anodal connecting resistance (R ₁) an end, resistance (R ₁) another terminating diode (D ₁) positive pole, resistance (R ₂) an end and electric capacity (C ₃) an end, diode (D ₁) negative pole connect power supply (+Ec), electric capacity (C ₃) and resistance (R ₂) other end ground connection all.

3, phone calling back when busy PTT controller according to claim 1 is characterized in that described control switch circuit (2) is by four resistance (R ₃)-(R ₆), three triode (Q ₁)-(Q ₃) form triode (Q ₁) the emitter i.e. (DW of power output end that connects rectification circuit (1) ₁) negative pole, triode (Q ₁) emitter connecting resistance (R ₃), (R ₄) an end, resistance (R ₃) another termination triode (Q ₁) base stage and triode (Q ₂) emitter, triode (Q ₂) collector connecting transistor (Q ₁) collector electrode, triode (Q ₂) base stage connecting resistance (R ₄) the other end and resistance (R ₅) an end, resistance (R ₅) another termination triode (Q ₃) collector electrode, triode (Q ₃) grounded emitter, triode (Q ₃) base stage through resistance (R ₆) be connected with the control signal output ends of signaling and control circuit (4).

4, phone calling back when busy PTT controller according to claim 1 is characterized in that described amplifying circuit (3) is by three resistance (R ₇)-(R ₉), four electric capacity (C ₄)-(C ₇), two diode (D ₂), (D ₃), voltage-stabiliser tube (DW ₂), battery pack (M), triode (Q ₄) form resistance (R ₇) a termination triode (Q ₄) collector electrode and control switch circuit (2) in triode (Q ₁) collector electrode, resistance (R ₇) another termination voltage-stabiliser tube (DW ₂) negative pole, electric capacity (C ₄) an end and diode (D ₂) positive pole, voltage-stabiliser tube (DW ₂) plus earth, electric capacity (C ₄) other end ground connection, diode (D ₂) negative pole meet electric capacity (C ₅), (C ₆) an end, diode (D ₃) negative pole and power supply (+Ec), diode (D ₃) positive pole connect the positive pole of battery pack (M), the minus earth of battery pack (M), electric capacity (C ₅), (C ₆) other end ground connection all; Triode (Q ₄) emitter through resistance (R ₉) ground connection, triode (Q ₄) base stage connecting resistance (R ₈) an end and electric capacity (C ₇) an end, resistance (R ₈) and electric capacity (C ₇) other end sending and receiving sign indicating number and the code signal output of control circuit (4).

5, phone calling back when busy PTT controller according to claim 1 is characterized in that described signaling and control circuit (4) are by single-chip microcomputer (U ₁), crystal oscillator (X ₁), two triode (Q ₅), (Q ₆), nine electric capacity (C ₈)-(C ₁₆), nine resistance (R ₁₀)-(R ₁₈) form crystal oscillator (X ₁) two ends meet single-chip microcomputer (U ₁) (13), (14) pin, single-chip microcomputer (U ₁) (13), (14) pin respectively through electric capacity (C ₉), (C ₁₀) ground connection; Single-chip microcomputer (U ₁) high level pulse signal output part (98) pin and electronic impulse switch (K ₁) (1) pin be connected; Single-chip microcomputer (U ₁) control signal output ends (87) pin and the signal input part of control switch circuit (2) be resistance (R ₆) an end be connected; Single-chip microcomputer (U ₁) power end (90) pin connect power supply (+Ec), single-chip microcomputer (U ₁) (16) foot meridian capacitor (C ₈) connect power supply (+Ec), single-chip microcomputer (U ₁) (16) pin through resistance (R ₁₀) meet single-chip microcomputer (U ₁) (15) pin; Single-chip microcomputer (U ₁) (40), (6), (39) pin ground connection all, single-chip microcomputer (U ₁) (10) pin through resistance (R ₁₉) ground connection; Single-chip microcomputer (U ₁) (11), (12), (92) pin unsettled; Single-chip microcomputer (U ₁) signal input part (93), (82) pin connect respectively and often open button (T ₁) two ends, single-chip microcomputer (U ₁) signal input part (93), (83) pin connect respectively and often open button (T ₂) two ends; Single-chip microcomputer (U ₁) (17) pin meet electric capacity (C ₁₅) an end and resistance (R ₁₈) an end, electric capacity (C ₁₅) other end ground connection, resistance R ( ₁₈) another termination power (+Ec), single-chip microcomputer (U ₁) (9) pin meet electric capacity (C ₁₃) an end and resistance (R ₁₇) an end, electric capacity (C ₁₃) another termination capacitor (C ₁₂), electric capacity (C ₁₄) an end, electric capacity (C ₁₂) the other end meet single-chip microcomputer (U ₁) (8) pin, electric capacity (C ₁₄) another termination power (+Ec); Single-chip microcomputer (U ₁) reset signal end (91) pin meet electric capacity (C ₁₁) an end, resistance (R ₁₂) an end, triode (Q ₅) collector electrode and resistance (R ₁₅) an end, electric capacity (C ₁₁) the other end and triode (Q ₅) grounded emitter, resistance (R ₁₂) another termination power (+Ec), triode (Q ₅) base stage connecting resistance (R ₁₃) an end and triode (Q ₆) collector electrode, triode (Q ₆) grounded emitter, resistance (R ₁₃) another termination power (+Ec), triode (Q ₆) base stage connecting resistance (R ₁₄), (R ₁₅), (R ₁₆) an end and electric capacity (C ₁₆) an end, resistance (R ₁₆) and electric capacity (C ₁₆) other end ground connection, resistance (R ₁₄) another termination power (+Ec); Single-chip microcomputer (U ₁) dtmf code signal output part (7) the pin dtmf code signal input part that connects amplifying circuit (3) be resistance (R ₈) the other end.

6, phone calling back when busy PTT controller according to claim 1 is characterized in that it has increased by one and has often opened button (T ₂), often open button (T ₂) two ends meet single-chip microcomputer (U respectively ₁) signal input part (93), (83) pin.

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