CN2349728Y - Disturbing free device for telephone - Google Patents

Abstract

The utility model relates to a disturbing free device for telephones, which is composed of switching switches which are respectively connected in series and in parallel on entering wires of a telephone and a disturbing free control loop. The disturbing free control loop is provided with a polarity protecting circuit, an answering circuit, a setting code signal recognition circuit, and a bell vibration circuit. The switching switches control the conversation and the disturbing free state of the telephone in time sharing. In a disturbing free period set by a user, a calling side can determine disturbing a called side or not according to the prompt sound of the answering circuit. When the calling side has emergency, the bell vibration of the called side can be generated through the rear operation program of the calling side to realize conversation.

Description

The telephone disturbance-free device

The utility model belongs to telephone communication class technical field, relates to the telephone disturbance-free device that a kind of may command telephone set the tinkle of bells enters to prevent unimportant phone.

Along with the fast development of telecommunications industry, phone as a kind of exchange message fast, communication tool has spread to huge numbers of families easily.But people enjoy that phone brought fast, also usually worried simultaneously easily for its some negative effects, therebetween especially with interfering phone for very.When the callee is in rest, busy public affair or other occasion that needs peace and quiet, be subjected to bothering of some meaningless or unimportant phones, bring adverse effect can for undoubtedly callee's normal rest and work, if things go on like this, also may cause the comparatively serious consequence of the confusing grade of callee's mood.

Before scheme described in the utility model is made, this area also once had the people to propose solution separately at above situation, these solutions mainly can be summarized as by additional control device and limit the mode of Inbound Calls and interruption-free service item two classes that telecommunication bureau releases, but they all fail to obtain to use widely and promote owing to different reasons or defective in implementation process.Limit the project organization form of Inbound Calls class way (or title " password; signal specific mode ") such as the CN2207672Y (practical phone incoming call limiter) of Chinese utility model patent notification number by additional control device, CN2195167Y (telephone cipher filter) and CN2150684Y contents such as (a kind of telephone set interruption-free controllers), they all are by additional one control device that password or signal specific be set on telephone set, whether password of checking incoming call side in view of the above and being inputed or signal specific and the setting of this machine coincide, thereby reach the purpose of restriction Inbound Calls, the existing major defect one of this class mode is that the machine master is being provided with, to notify many related personnel one by one after change password or the signal specific, comparatively loaded down with trivial details, the 2nd, because the source of annoying call mostly is the people that more communication relationship is arranged usually with the machine master, thereby the effect that utilizes its inhibition to bother is not obvious.Telecommunication bureau's interruption-free service item is that do-not-disturb functionality is set in switch, the telephone subscriber can register open-minded when this service function of needs in telecommunication bureau, when needing the interruption-free service, the form of available phone dialing is set, removing this service also will remove by phone, the existing shortcoming of this mode is: 1. use phone settings, program is loaded down with trivial details; 2. this service function is opened the back user needs monthly to pay dues to telecommunication bureau, has increased user's spending; 3. during interruption-free, incoming call can not enter without exception, even if incoming call side truly has urgent thing also to have no way out.

The purpose of this utility model is at the above-mentioned prior art weak point that exists of " password, signal specific mode " technology particularly, provide a kind of rational in infrastructure, easy to use, be suitable for the telephone disturbance-free device of applying.

Be used to realize that the technical solution of foregoing invention purpose is such: an additional control device on telephone set, this device have one be serially connected in diverter switch on the telephone set inlet wire and one be connected on the telephone set inlet wire by polar protective circuit, answering circuit, set the interruption-free control loop that coded signal identification circuit and ringing circuit are formed, telephone set and interruption-free control loop use the telephone set inlet wire by the diverter switch timesharing, are provided with in advance to set sign indicating number identification signal (key in certain in addition as the urgent thing of incoming call side and hold the delay adjustments sign indicating number identification signal that certain hour is waited in other time-delay of machine by the identification signal or the urgent thing of incoming call side of key assignments sign indicating number) in the interruption-free control loop; After diverter switch is cut the power failure phone; subscriber line circuit is in the interruption-free state of setting; during this time as the outside coupling phone; its incoming signal just enters answering circuit by polar protective circuit; answering circuit work is also sent the prompt tone signal and (as: " is let down; owner has a rest, and woulds you please treat to dial again.If you truly have urgent thing, request certain figure place key of telephone keyboard *." or " sorry, owner has a rest, and woulds you please treat to dial again.If you truly have urgent thing, would you please hold machine and wait a moment."), if feeling thing, incoming call side bothers unimportant or inconvenient this moment, then on-hook gets final product, during this period the side's talked about phone No ringing; Truly have urgent thing as incoming call side, then set coded signal (dial again separately * key or the machine of holding wait a period of time again) by prompt tone indication input, so set the work of coded signal identification circuit, setting coded signal after discerning after testing is translated into logical signal controls the ringing circuit ring then, simultaneously bell signal is fed back to answering circuit; The callee stirs diverter switch (circuit is provided with and guarantees that the smooth switching of switch does not go offline) after hearing ring, make telephone set switch to the normal talking state by the interruption-free state, realizes the normal talking between incoming call side and callee.

The utility model technology and prior art particularly the maximum difference compared of " password, signal specific mode " technology could be bothered the side talked about and decided by incoming call side, so under normal circumstances neither can influence the rest or the work of the side talked about, unlikelyly again delay the urgent important information that the tendency to develop of incoming call side institute is gone into, make the incoming call selection mode during the interruption-free more reasonable, device described in the utility model more is suitable for applies.

Below with reference to accompanying drawing the utility model content is described further.

Fig. 1 is an operation principle block diagram of the present utility model.

Fig. 2 is the schematic block circuit diagram of a kind of specific embodiment of the present utility model.

Fig. 3 is the electric on line schematic diagram of structure embodiment illustrated in fig. 2.

As shown in the figure, telephone set no-disturbance device described in the utility model is constituted, is provided with in the interruption-free control loop polar protective circuit 2, answering circuit 3, set coded signal identification circuit 5 and ringing circuit 6 by diverter switch 1 and interruption-free control loop.Number in the figure L ₁And L ₂Be the phone inlet wire, telephone set 4 is received inlet wire by diverter switch 1.The interruption-free control loop is attempted by on the inlet wire, and it and telephone set 4 use inlet wire by diverter switch 1 timesharing.

The setting means of diverter switch has two kinds in the utility model, comprises the mode of " switch (1a) manually arbitrarily is set " and the mode of " clock is provided with switch (1b) automatically "." switch manually arbitrarily is set " and belongs to the mechanical switch set-up mode, need add at the no-disturbance device place and significantly be used to show current set condition and the outward appearance prompting that links with diverter switch, as: when phone is in the interruption-free state, correspondingly on telephone set, hold up a ridge, and when phone is in the normal talking state, this ridge disappear (lodge or contract and take in the pot shell); The time period of the clock setting interruption-free that " clock is provided with switch automatically " carried by device by the user; During practical application, more than two kinds of setting meanss can separately use use also capable of being combined.

The embodiment that interruption-free is set in this device comprises " plain code setting means " and " setting means is waited in time-delay " two kinds.So-called " plain code setting means " is to set a plain code " * " (* can be the arbitrary button on the telephone key dish) in advance as setting a sign indicating number identification signal in the interruption-free control loop; like this after diverter switch 1 is cut power failure phone 4; outside incoming signal will at first enter answering circuit 3 by polar protective circuit 2; answering circuit 3 sends prompt tone under the situation that this do-not-disturb functionality of the side talked about is set (as: " sorry; that owner has a rest, and woulds you please treat to dial again.If you truly have urgent thing, request by * key."); dial by " * " key just after this truly have urgent thing to abide by to advise; in case after entering answering circuit 3 from the incoming signal of key once more of outside; set coded signal identification circuit 5 in the control loop and promptly start working as incoming call side; detect this settings sign indicating number identification signal then gating ringing circuit 6 make the side's talked about phone ringing, simultaneously bell signal is fed back to incoming call side by answering circuit 3, make it know phone gating; to bear with, until being subjected to words side to stir diverter switch 1 realization normal talking." setting means is waited in time-delay " is to be provided with " time-delay waits " voice suggestion to set the sign indicating number identification signal (as " sorry, owner rests, and woulds you please treat to dial again in the interruption-free control loop.If you truly have urgent thing, the machine of please holding is waited a moment."); after diverter switch 1 is cut power failure phone 4; meet outside incoming signal and enter answering circuit 3 by polar protective circuit 2; then answering circuit 3 sends the prompt tone signal; advise the machine of holding to delay time wait more a little while just truly have urgent thing to abide by as incoming call side thereafter; after delay time to be set arrives, the incoming signal that outside time-delay waits is worked setting coded signal identification circuit 5 and ringing circuit 6, the connection side talked about phone.The basic principle of above dual mode is identical, only detecting on the recognition mode and requiring on the mode that incoming call side makes one's attitude clear different, by length is limit, this paper is following only to make explanation more at large to " plain code setting means " telephone disturbance-free device with emphasis.

In Fig. 2 and " plain code setting means " telephone disturbance-free device shown in Figure 3, answering circuit 3 is made up of delay control circuit 31, talking path 32 and prompting sound circuit 33, inlet wire L ₁, L ₂Receive talking path 32 through polar protective circuit 2, the talking path of talking path analog telephone, the conversation impedance of its impedance and telephone set is basic identical; In signal recognition circuit 5, be provided with add, power down codan 5a.When device enters the interruption-free state, after having outside bell signal to enter, speaking circuit 32 conductings, prompting sound circuit 31 and delay control circuit 33 are worked simultaneously, and prompting sound circuit 33 is according to the content play prompt tone of setting in advance; Signal recognition circuit 5 is waited for the input of the signal of key once more of incoming call side, if incoming call side's on-hook or reactionless, then delay control circuit 33 turn-offs speaking circuit at the delay time of setting in advance to the back; And in case after if the incoming call root has been imported setting sign indicating number " * " according to prompt tone, signal recognition circuit 5 detects it and be translated into logical signal, 6 rings of control ringing circuit; Bell signal feeds back to incoming call side by talking path 32 again, makes it know phone gating, waits for reply; After once replying end, circuit restoration.

" prompting sound circuit " set suggestion content relates to the following several main applications of the utility model in this device: 1. be used for family or recreating facility and set do-not-disturb functionality, its voice suggestion sentence is for example: " sorry; that owner has a rest; would you please dial after a while again; if you truly have urgent thing, request by * key.", voice content can repeat; 2. be used for the machine master when busier or the temporary needs occasion of quietly handling official business set do-not-disturb functionality, its voice suggestion sentence for example: " sorry, owner's public affair this moment is busy, woulds you please dial after a while again, if you truly have urgent thing, requests by * key."; 3. be used for the occasion that other needs interruption-free.

In the circuit diagram that Fig. 3 provides: K switch 1, K2 and formation diverter switch 1, wherein K1, K2 are the dpdt double-pole double-throw (DPDT) linked switch, switch normal talking and the timesharing of interruption-free state and carry out; Piezo-resistance R _vAnd bridge circuit D1～D4 forms polar protective circuit 2; Voltage-stabiliser tube Z2, Z3, resistance R 1～R10, R14～R16, diode D5, D6, capacitor C 1～C3, triode VT1～VT3 etc. form the speaking circuit 32 of analog telephone talking path, wherein Z2 punctures when coming ringing-current and makes speaking circuit 32 conductings, Z3 shields, and capacitor C 2 can guarantee at switch from the not power down of phone when the normal talking state switches of interruption-free state; Resistance R 11～R13, diode D7, D8, capacitor C 4, and photoelectric tube OPT be delay control circuit 33, then by the VT3 conducting, turn-off speaking circuit 32 at delay time; Voice warning circuit 31 is made of speech chip IC1 and resistance R 18, and it is the direct place in circuit of form as shown, also can add the amplification circuit in addition; Resistance R 17, capacitor C 6 provide+the 5V direct voltage for signal circuit section; Phase-locked loop decoding chip IC2 (as LM567 etc.) and NAND gate AN1～AN4, not gate N1, N2, resistance R 19～R25, capacitor C 7～C10, diode D9, D10, triode VT4～VT6 etc. form setting coded signal identification circuit 5, wherein the operating frequency of IC2 is set at arbitrary composition audio frequency (also can establish two decoding chips to improve reliability) of " * " key, AN1, AN2, C8, R19 forms monostable trigger, change the output of phase-locked loop into the logic digital quantity, the control ringing circuit, C9, C10, R20～R25, VT4～VT6, D9, D10, AN3, AN4, N1, compositions such as N2 add, power down codan 5a; Ringing circuit 6 is made up of NAND gate AN5～AN7, not gate N3～N7, diode D11～D15, piezoelectric ceramic piece B1, resistance R 26～R33 and capacitor C 11～C14 etc., and bell signal feeds back to speaking circuit 32 by D14 and D15.

The utility model version in actual applications can be divided into following several:

1, independent (external application) type structure-be about to no-disturbance device be connected between phone inlet wire and the telephone set makes existing or does not possess the additional do-not-disturb functionality of telephone set of this do-not-disturb functionality.

2, compound (interior usefulness) type structure-soon this do-not-disturb functionality adds this device in ordinary telephone set as an additional function of ordinary telephone set, makes the two obtain appropriate reasonably combination.The part that no-disturbance device was identical with theory structure in the telephone set during structure was compound can be shared, for example polar protective circuit; Close part can be used, and for example " clock is provided with switch automatically " in the no-disturbance device just can be used the clock that has in the clock telephone set; Ringer can be shared when output power allows situation, as the output power deficiency, then also need establish low-powered ringer in addition; Other circuit can be provided with separately, also can integrate with the circuit in the telephone set.

3, this device of the structure that is used with telegraphone-add in telegraphone, like this during the telephone disturbance-free state, the message mode also can be selected leaving alone under the situation of the side talked about by incoming call side.

4, the structure that is used with other kind phone.

Claims (5)

1, a kind of telephone disturbance-free device is characterized in that having one and is serially connected in telephone set inlet wire (L ₁, L ₂) on diverter switch (1) and one be connected to telephone set inlet wire (L ₁, L ₂) on by polar protective circuit (2); answering circuit (3); set the interruption-free control loop that coded signal identification circuit (5) and ringing circuit (6) are formed; telephone set (4) uses the telephone set inlet wire with the interruption-free control loop by diverter switch (1) timesharing; in the interruption-free control loop, be provided with in advance and set the sign indicating number identification signal; after diverter switch (1) is cut power failure phone (4); outside incoming signal enters answering circuit (3) by polar protective circuit (2); answering circuit (3) sends the prompt tone signal; after treating the outside incoming signal entering answering circuit (3) once more; set coded signal identification circuit (5) work; setting coded signal after discerning after testing is translated into logical signal controls ringing circuit (6) ring then, simultaneously bell signal is fed back to answering circuit (3).

2; telephone disturbance-free device as claimed in claim 1; it is characterized in that in the interruption-free control loop, setting in advance a phone keyboard key-position plain code " * " as setting the sign indicating number identification signal; after diverter switch (1) is cut power failure phone (4); outside incoming signal enters answering circuit (3) by polar protective circuit (2); answering circuit (3) sends the prompt tone signal; after treating the outside key incoming signal entering answering circuit (3) once more; set coded signal identification circuit (5) work; setting coded signal after discerning after testing is translated into logical signal controls ringing circuit (6) ring then, simultaneously bell signal is fed back to answering circuit (3).

3, telephone disturbance-free device as claimed in claim 1; it is characterized in that in the interruption-free control loop, being provided with " time-delay waits " voice suggestion and set the sign indicating number identification signal; after diverter switch (1) is cut power failure phone (4); outside incoming signal enters answering circuit (3) by polar protective circuit (2); send the prompt tone signal by answering circuit (3); after delay time to be set arrives; set coded signal identification circuit (5) work; then control ringing circuit (6) ring, simultaneously bell signal is fed back to answering circuit (3).

4,, it is characterized in that answering circuit (3) forms inlet wire (L by delay control circuit (31), speaking circuit (32) and prompting sound circuit (33) as claim 1 or 2 or 3 described telephone disturbance-free devices ₁, L ₂) receive speaking circuit (32) through polar protective circuit (2); after outside incoming signal enters; speaking circuit (32) conducting; prompting sound circuit (31) and delay control circuit (33) are worked simultaneously; prompting sound circuit (33) playing alert tones, delay control circuit (33) are carried out time-delay on-hook control.

5,, it is characterized in that diverter switch (1) comprises switch (1a) to be set arbitrarily manually and clock is provided with switch (1b) automatically as claim 1 or 2 or 3 described telephone disturbance-free devices.

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