CN1098581A - Telephone set capable of distinguishing calling subscriber - Google Patents

Abstract

The present invention has provided the technic relization scheme of a kind of " telephone set capable of distinguishing calling subscriber ".It can make called people know in advance before answering the call whom the people who calls is, connects still with decision not connect.For those people who knows this telephone set telecommunications office of number assigned, then can not connect the generation ring.It is by the telephone set part, and identification captaincy part and compatible switch three parts are formed, and can switch compatible fully mutually with the existing telephone machine by compatible switch.It does not influence existing telephone network, need not to have an operation on telecommunications office's switch yet, can be widely used in office, apartment and flats, hotel and various commercial locations etc., can be used for national defense and military department, safe and secret mechanism etc. yet.

Description

Telephone set capable of distinguishing calling subscriber

The present invention relates to a kind of telephone set, relate in particular to a kind of telephone set capable of distinguishing calling subscriber.

There is such shortcoming in existing telephone set, no matter who, only need you know it telephone number (by telecommunications office distribute to it, unique), can both put through this telephone set, and before called people (being the receiver) off-hook is answered the call, can not know in advance whom captaincy's (people promptly makes a phone call) is.And usually for various reasons, called people is unwilling to connect some uninvited guests' phone, so have to telephone set has been put.But so, uninvited guest's number is not come in, and can called people wants that the number that connects equally do not come in yet, and causing mistakes causes delay, and allows called people that a kind of psychology of misgivinging is arranged, and always is afraid of have important number not come in.

Purpose of the present invention is exactly to propose a kind ofly to discern the technical scheme whose telephone set the captaincy is.This technical scheme makes called people can know in advance before answering the call whom the people who calls is, connects still with decision not connect by adopting the two-stage dialing method.And only know the people of the telephone number of this telephone set for those, then can not connect and can produce ring.It can switch with the existing telephone machine compatible fully by compatible switch, do not influence existing telephone network, also need not on telecommunications office's switch, to have an operation, can be widely used in office, apartment and flats, hotel and various commercial locations etc., also can be used for national defense and military department, safe and secret mechanism etc.

Basic functional principle of the present invention: its workflow diagram is seen accompanying drawing 1.For convenience of description, do some definition earlier.Telephone set of the present invention is connected conversation will carry out two-stage dialing, at first with beat that existing telephone is the same dials the telephone number that telecommunications office distributes to, be called dialing for the first time: dial identity code after putting through again, it can be pulse dialing system number, Dual Tone Multifrequency dialing basis number and special audio signal and specific voice password etc.Show whom the captaincy is, it is worked out setting by called people and tells and the captaincy, and can change as required at any time as good friend, relative, acquaintance etc.The ring that telecommunications office is sent here herein is called outer ring; And this telephone set self is sent, the expression identity code that the captaincy dialled, the existing input of telephone set is put on record, is that the alert sound that good friend, relative, acquaintance call is called interior chime, generally selects the musical sound that obvious difference is arranged with existing telephone power ringing sound for use; Called people does not win receiver, and breadboardin off hook state in the telephone set is called automatic off-hook; Called people wins receiver, is called manual off-hook.

Groundwork process of the present invention is as follows: at first telephone set carries out initialization, and it comprises that the receiver of telephone set is hung up, and carries out initialize routine, to flag bit, the zero clearing of status register input register.Change the state of waiting (waiting for phone) then over to.One has phone, and outer bell signal is arranged in the subscribers feeder, after testing after, the telephone set automatic off-hook, outer bell signal is stopped.And then telephone set sends inquiry or prompt tone, and the expression phone is put through, please the captaincy continue to dial his identity code.After telephone set receives identity code, check mutually, if there is not this identity code with having imported the identity code of putting on record in the memory, then can determine not to be to wait next phone by good friend, relative, acquaintance, so automatic hand-up, telephone set returns initialize routine, then reenters the state of waiting; If in the memory this identity code is arranged, just send interior chime to the captaincy, the expression identity code is identified, send interior chime to called people simultaneously, has informed that good friend or relative, acquaintance etc. call.Can (this circuit can translate captaincy's identity code according to the identity code that demonstrates on the display or voice call thin circuits after called people hears, directly tell it is who calls with voice) know it is the phone who comes, as not being that the people who makes an appointment in advance calls, at this moment perhaps called people does not want to connect his phone, can not go to connect it, in after a while behind the chime, the telephone set automatic hand-up carries out entering the state of waiting again after the initialization; If called people thinks important phone, after manually off-hook was won receiver, interior chime stopped automatically, and captaincy and called people can converse.Behind the end of conversation, after called people's on-hook (captaincy is on-hook also), telephone set enters the state of waiting again.

Embodiment

Further describe operation principle of the present invention below in conjunction with accompanying drawing 2, accompanying drawing 3.

Accompanying drawing 2 is a telephone set capable of distinguishing calling subscriber basic structure block diagram.

Accompanying drawing 3 is identification captaincy part detailed structure block diagram.

Telephone set capable of distinguishing calling subscriber is mainly formed (seeing accompanying drawing 2) by three parts: A) telephone set part TEL, B) compatible switch SW, C) identification captaincy part TWFC.The structure of telephone set part TEL is with existing telephone set; Compatible switch SW is a switching switch.Identification captaincy part TWFC(sees accompanying drawing 3) by: rectifier bridge BR, outer ring detecting circuit RT, off-hook switch HSW, interior chime generation circuit MU, circuit ASK takes place in inquiry (prompt tone), password receiving circuit CREV, microprocessor CPU, memory MEM O, display SH, keyboard KEY, control interface PORT, voice call thin circuits VTN, microphone MIC, amplifirer AMP, loud speaker SP form.

The basic connection of telephone set capable of distinguishing calling subscriber: telephone set part TEL directly receives on subscribers feeder L1, the L2, and identification captaincy part TWFC is parallel on subscribers feeder L1, the L2 by compatible switch SW.

The connection of identification captaincy part TWFC: the Bc of rectifier bridge BR, Bd meet Sc, the Sd of compatible switch SW respectively; Ba meets input Ri and the Hi of outer ring detecting circuit RT and off-hook switch HSW, and output Mo, the Ao of circuit ASK, the input AMi of amplifirer AMP take place for interior chime generation circuit MU and inquiry (prompt tone); Bb meets ground end Rb, the Cb of outer ring detecting circuit RT and password receiving circuit CREV; The output Ho of off-hook switch HSW meets the input Ci of password receiving circuit CREV; Start end Ms and the As of circuit ASK takes place in the output Co of the control end Hc of the output Ro of outer ring detecting circuit RT, off-hook switch HSW, password receiving circuit CREV, interior chime generation circuit MU and inquiry (prompt tone), the region of memory selecting side Vc of voice call thin circuits VTN, the start-up control end AMs of amplifirer AMP connect the corresponding port (or position) of control interface PORT respectively; The output of voice call thin circuits VTN meets the input AMi of amplifirer AMP, and the output of amplifirer AMP meets loud speaker SP, and the output of microphone MIC meets the microphone input Vi of voice call thin circuits VTN;

Microprocessor CPU is connected with control interface PORT, memory MEM O, display SH, keyboard KEY.

For convenience of explanation, make some hypothesis earlier; Suppose that the identity code that called people and captaincy arrange Zhang is 88801, so-and-so identity code of Lee is 88805 ..., and in advance from keyboard KEY and the microphone MIC internal memory with the memory MEM O of their input telephone sets and voice call thin circuits VTN.At this moment called people only wants to connect the phone that Zhang makes, and does not want to connect Lee's so-and-so or other people phone.

Clear easy for the following describes in addition, earlier the function of some element circuits in the accompanying drawing 3 is done an explanation:

A. interior chime generation circuit MU:

The function of interior chime generation circuit MU is: after the level of its Be Controlled interface PORT starts, and its outputting music signal (selecting the music that obvious difference is arranged with the plain old telephone the tinkle of bells for use).This circuit is the telesong holding circuit, after it starts outputting music, off-hook switch HSW disconnects, but at this moment to be in the music hold mode be that captaincy and called people's telephone line still keeps connecting to telephone line, called people is in case manual off-hook, music stops automatically, and captaincy and called people can converse.

B. voice call thin circuits VTN:

It in advance with voice such as " Zhang calls ", " so-and-so call Lee " from microphone MIC typing internal memory corresponding region.When Zhang calls, after decoding, choose corresponding region of memory by identity code 88801 that he dialled.Start playback button then plays out " Zhang calls " from loud speaker voice.Be simplified illustration, do not draw in the accompanying drawings such as playback button 3 that chime was imported amplifirer A-MP in it will cut off when playing, in order to avoid do not hear with interior chime during voice output.

C. password receiving circuit CREV:

Its function is to receive the identity code that the captaincy dialled.Because of present universal telephone dialing standard has pulse dialing and two kinds of standards of Dual Tone Multifrequency dialing, so it also divides two passages, a special disposal pulse dialing signal; Another special disposal DTMF pulsing signal.If maintain secrecy for increasing, perhaps other special requirements can be set up some special channels, with the special dialing signal of special disposal, as set up the whistle treatment channel and specially specific whistle are decoded; Setting up speech recognition circuit discerns the special sound password specially.

Describe the course of work of telephone set capable of distinguishing calling subscriber below in detail:

When compatible switch SW beats at t, during t ' position, this telephone set and existing telephone machine are compatible fully.

When compatible switch SW beats at d, during d ' position, this telephone set promptly becomes telephone set capable of distinguishing calling subscriber.When telephone receiver is in hook state, energized or by after the reset key (not drawing in the accompanying drawing 3), microprocessor CPU is carried out initialize routine, to flag bit, status register, input register zero clearing, closes amplifirer AMP, changes the state of waiting then over to.One has phone, and outer bell signal is arranged in the subscribers feeder, through outside after ring detecting circuit RT detects, pass to microprocessor CPU.After microprocessor CPU is received and is handled, from control interface PORT output order, connect off-hook switch HSW automatic off-hook, the telephone set internal resistance reduces, cut off outer ring, microprocessor CPU sends instruction from control interface P-ORT then, start inquiry (prompt tone) circuit ASK takes place, output inquiry voice, as " you are good! May I ask you is whom? ", perhaps send prompting, for example " toot " one, it reaches captaincy's receiver through rectifier bridge BR input subscribers feeder L1, L2, and the expression phone is put through, please continue to dial identity code.Microprocessor CPU sends instruction subsequently and closes inquiry (prompt tone) generation circuit ASK, and then sends the output zero clearing of instruction to password receiving circuit CREV again.The captaincy, Zhang in this way, he has dialled his identity code 88801, by the on telephone line, reaches password receiving circuit CRE-V.Identity code that microprocessor CPU receives it and checking mutually that input store ME-MO in advance puts on record, checked result is found its existing putting on record, the then microprocessor CPU instruction of sending, chime generation circuit MU and amplifirer AMP in starting, disconnect off-hook switch HSW subsequently, promptly permanent, enter the music hold mode.Interior chime one side reaches captaincy's receiver through rectifier bridge BR incoming telephone line road, and the expression identity code is identified, and called people's Founder is being carried out interior chime; On the other hand, it imports amplifirer AMP, behind power amplifier, broadcast from loud speaker SP, notify called people to have good friend or relative acquaintance etc. to call, microprocessor CPU will be sent identity code here and be presented on the display SH, signal after will deciphering is simultaneously passed to the internal memory selector of voice call thin circuits VTN, chooses corresponding region of memory, plays out the voice of " Zhang calls " from loud speaker SP.Called people learns it is that Zhang calls, and manually behind the off-hook, interior chime stops, captaincy and called people can converse.Behind the talk-through, after called people's on-hook (captaincy is on-hook also), then enter the state of waiting again.Afterwards, so-and-so calls as Lee, same principle, and display SH will demonstrate so-and-so identity code of Lee, play out the voice of " so-and-so calls Lee " among the loud speaker SP.At this moment called people does not want to connect so-and-so phone of Lee, so he does not go to connect it, interior chime continues a break time after (be generally 30-60 second), and interior chime generation circuit MU is closed automatic hand-up, returns the state of waiting.

By the explanation of last surface analysis as can be known, for the captaincy who does not have identity code, i.e. non-called people's good friend, close prestige, acquaintance etc., chime in this telephone set can not be connected and produce, like this for called people as there not being phone to make; Then good as if do not get through phone for the captaincy.

Claims (2)

1, a kind of telephone set capable of distinguishing calling subscriber, it is characterized in that: it is by telephone set part TEL, identification captaincy part TWFC, compatible switch SW three parts are formed, telephone set part TEL directly is connected on subscribers feeder L1, the L2, its structure is with existing telephone set, and identification captaincy part TWFC is parallel on subscribers feeder L1, the L2 through compatible switch SW.

2, the described a kind of telephone set capable of distinguishing calling subscriber of claim 1, it is characterized in that: the function of its identification captaincy part TWFC adopts the two-stage dialing method to realize, at first dial the number, captaincy and called people's telephone line is connected, captaincy's his identity code of dialling again that both sides make an appointment then, it can be a pulse dialing system number, Dual Tone Multifrequency dialing basis number and special audio signal be whistle and specific voice password etc. for example, if identity code is correct, telephone set sends interior chime, tells that called people is who calls.

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