CN2243750Y - Computer telephone - Google Patents

Abstract

The utility model provides a computer telephone, comprising a microprocessor, and after the output port of the microprocessor passes through serial / parallel converting circuits, the output port of the microprocessor is connected with a signal distributor. One path of the output port of the microprocessor is connected with a solid recording circuit, and the other path is connected with a parallel port. The solid recording circuit is also connected with the signal distributor. One path of the signal distributor is connected with a calling circuit, and the other path is connected with a telephone line. The calling circuit is also connected with an outer line. The parallel port is connected with a multi-way switch, a keyboard, a DTMF receiving circuit and a busy tone detection circuit respectively. The keyboard is also connected with the multi-way switch and the I/O port of the microprocessor respectively. The I/O port of the microprocessor is also connected with a ringing circuit and a tracking circuit. The busy tone detection circuit, the DTMF receiving circuit, a dialing circuit, the ringing circuit and the tracking circuit are connected with the outer lines evenly, and the tracking circuit is also connected with the other outer lines. The utility model has the advantages of compact and reliable circuits and novel and rich functions.

Description

Computerized telephone

A kind of computerized telephone relates to the telephone set of answer calls automatically.

Along with the raising of living standards of the people, phone is universal day by day, and except requiring to have the basic call function, also wish to have other additional functions to people to phone, as record, reply, function such as remote control.Disclosed a kind of Chinese patent 92242909.X number " the smart phone adapter ", can be phone increases by nine kinds of functions such as owner's message, automatic-answering back device, the recording of the other side's telephone message, both sides' calling record, incoming call message playback, remote control monitoring incoming call announcement record, remote control change owner's announcement record and remote control appliance switch.Its control section adopts single-chip microcomputer, record, playback are partly adopted speech chip and are comprised owner the leave a message district and the voice data memory of incoming call recording zone, comprise that also ring detects, phone transmission, Audio Processing, the DTMF decoding, private mark is set, record, playback control button, circuit such as household electrical appliances gate-controlled switch.But this patent also has the deficiency of the following aspects.1) because this device is to be attached to by the telephone set, audio frequency processing circuit wherein, ring detecting circuit etc. all repeat with main station, and phone can not can not be realized the intellectuality of phone by computer control; 2) nil keyboard is difficult to deposit various required numbers in device, thereby is subjected to certain restriction on function, as is difficult to realize the strange land tracking of phone, automatic dialing etc.3) use switch as the password sign, can not revise password whenever and wherever possible, and limit the password figure place, giving gives away secrets causes possibility.

The purpose of this utility model provides a kind of computerized telephone, and it is integrated in one phone and answer phone, and has additional functions.

Adopt such technical scheme according to above-mentioned purpose the utility model: this telephone set comprises the microprocessor that sends instruction after an acknowledge(ment) signal is also handled, and also comprises speaking circuit, DTMF receiving circuit, keyboard and dial-up circuit, ringing circuit, solid recording circuit.It is characterized in that the microprocessor delivery outlet connects signal distributor behind serial/parallel change-over circuit, microprocessor data mouth one tunnel connects solid recording circuit, and one the tunnel connects parallel port.Solid recording circuit also joins with signal distributor.Signal distributor one tunnel is connected telephone circuit, and one the tunnel connects outside line, and speaking circuit also connects outside line.Parallel port connects variable connector, keyboard, DTMF receiving circuit and busy tone testing circuit respectively.Keyboard joins with variable connector and microprocessor I/O mouth respectively.The I/O mouth of microprocessor also joins with ringing circuit and tracking circuit.Busy tone testing circuit, DTMF receiving circuit, dial-up circuit, ringing circuit, tracking circuit all join with outside line, and tracking circuit also joins with another outside line.The instruction that microprocessor sends is the control signal distributor after serial/parallel change-over circuit conversion, realizes recording, playback, the transmission of conversation signal between solid recording circuit, signal distributor, speaking circuit and outside line.The output signal of busy tone testing circuit, DTMF receiving circuit is sent microprocessor processes after parallel port.Join with microprocessor, can produce dialing through dial-up circuit again and be sent to outside line and the break-make of variable connector can make keyboard signal both can make numeric keypad.And tracking circuit can be sent to the analog signal in the main telephone line another root outside line under the control of microprocessor output signal, realizes following the tracks of conversation.

In order to increase the function of this telephone set, also serial/parallel change-over circuit delivery outlet can be connect display circuit or appliance switch circuit, thereby strengthen practicality.

The utility model organically combines telephone set with answer phone, has eliminated owing to answer phone is provided with the circuit that causes separately and has repeated to be provided with.Make circuitry succinctly reliable on the one hand, the function of each circuit is made full use of; The second, this telephone set adopts microprocessor and circuit such as signal distributor and variable connector, makes the interface efficient of microprocessor greatly improve, thereby further makes circuit structure simple relatively; The 3rd, these facility have multiple function as from motion tracking, dial, insert message, recording, strange land automatically and play host and guest people's message, strange land input owner message, strange land and revise password, strange land input follow-up call number, strange land open and close household electrical appliance, strange land and eliminate guest's message etc.; The 4th, perfect telephone interface is arranged, when microprocessor is not worked (as have a power failure) can be used as ordinary telephone set and use.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is according to the computerized telephone circuit block diagram that the utility model proposes.

Fig. 2 is one of computerized telephone circuit theory diagrams.

Fig. 3 is two of computerized telephone circuit theory diagrams.

Fig. 4 is three of computerized telephone circuit theory diagrams.

Fig. 5 is four of computerized telephone circuit theory diagrams.

Fig. 6 is five of computerized telephone circuit theory diagrams.

This computerized telephone that is combined into of Fig. 2 to Fig. 6 is all implemented circuit theory diagrams.

Fig. 7 is a computerized telephone software main flow chart.

Fig. 8 is one of computerized telephone software sub-process figure.

Fig. 9 is two of computerized telephone software sub-process figure.

Below in conjunction with circuit structure and the working condition of accompanying drawing detailed description according to the computerized telephone that the utility model proposes.

As shown in Figure 1, comprise the device of microprocessor as all, the utility model also comprises the microprocessor that can accept to send after various signals are also handled control command.Simultaneously, therefore this device has also comprised ordinary electronic speaking circuit that telephone set has, keyboard and dial-up circuit, ringing circuit owing to have telephone functionality.

When having above-mentioned each circuit, this computerized telephone also has circuit such as tracking circuit, busy tone detection, signal allocation, variable connector, solid recording, parallel port, serial/parallel conversion, and circuit such as display that can affix, appliance switch.The concrete structure of complete machine is: the delivery outlet of microprocessor connects serial/parallel change-over circuit, and the output of serial/parallel change-over circuit connects signal distributor, and signal distributor one tunnel connects outside line through speaking circuit, and one the tunnel joins with telephone wire.The solid recording unit is connected between signal distributor and the microprocessor.The instruction of microprocessor delivery outlet output Serial Control is converted to and the line output control command through serial/parallel change-over circuit.The break-make of this commands for controlling signal distributor internal electron switch, thus make the outside line signal arrive solid recording circuit through signal distributor.And in solid recording circuit, carry out storing after the analog-to-digital conversion.And the digital signal of being stored becomes voice signal through digital-to-analogue conversion in the solid recording circuit, by signal distributor or be sent to outside line and realize replying, or is sent to speaking circuit and realizes playback.Parallel delivery outlet at serial/parallel change-over circuit can connect display circuit, to carry out the demonstration of telephone number or other storage information.

The data port of microprocessor connects solid recording circuit and parallel port respectively.Parallel port then one the tunnel connects busy tone testing circuit and Dual Tone Multifrequency receiving circuit respectively; Another road connects variable connector; Third Road connects keyboard.Keyboard also joins with input and output (I/O) mouth of variable connector and microprocessor respectively.Variable connector joins with dial-up circuit, and busy tone testing circuit, DTMF receiving circuit, dial-up circuit all join with outside line.When this computerized telephone carrying out automatic answering machine or during from motion tracking,, then this signal being sent to microprocessor by parallel port if the busy tone testing circuit detects the busy-back signal in the outside line, send control command by microprocessor.The DTMF receiving circuit then is converted to digital signal with the touch-tone signal that receives, and is sent to microprocessor through parallel port.The various strange lands control command of sending by the dual-tone multifrequency phone all can arrive microprocessor by DTMF receiving circuit, parallel port thus.Microprocessor sends control command after the strange land control command is handled, and makes co-ordinations such as each functional circuit such as appliance switch circuit, signal distributor, solid recording.Setting up of variable connector then can make numeric keypad can make the dialing keyboard of telephone set.Be that keyboard signal is sent to outside line as dialing signal through variable connector, dial-up circuit.Also can make keyboard as the numerical key or the function key of microprocessor, realize the storage of information or finish record, playback operation.

The I/O mouth of microprocessor also joins with ringing circuit and tracking circuit respectively.When bell signal reaches certain number of times, microprocessor then think main frame nobody answer the call, perhaps carry out after motion tracking dialing, two outside lines being connected, perhaps carry out automatic answering machine.If there is the dual-tone multifrequency password to receive, then can carry out the operation of various strange lands from the DTMF receiving circuit.

Fig. 2 is this computerized telephone microprocessor, parallel port, display circuit, serial/parallel change-over circuit figure.Among the figure, IC11 is a microprocessor, selects 8051 or 8751 for use, and IC12 is a parallel port, selects 8155 or 81C55 for use.IC16 and IC15 are integrated package of pressure-stabilizing and select LM7805 or LM317 respectively for use.IC13 and IC14 form serial/parallel capable change-over circuit, select 74HC164 or 74LS164 for use.Be the intuitive and convenient that circuit diagram is described, wiring is all joined by the form of connector socket among Fig. 2-Fig. 6.Wherein KA-2, KA-3, KA-4 all join with KA-1 and pin number corresponding: KB-2, KB-3, KB-4 all join with KB-1, and pin is number also corresponding; KC-1 links to each other with KC-2.

Civil power again through full-bridge rectification, divides two-way by the transformer transformation then.One the tunnel through the IC16 voltage stabilizing, and for relevant integrated package or circuit provide Vcc power supply, another route IC15 voltage stabilizing is for display circuit provides operating voltage.The P00-P07 end of IC11 is address/data lines, and the AD0-AD7 end with IC12 joins respectively, and wherein the P00-P03 of IC11 end also joins with the D0-D3 end of IC21 among Fig. 3.The P20 end of IC11 joins with the IO/M end of IC12, and the P25 end joins with the CE end of IC21 among Fig. 3, and P26 joins with the CE end of IC12.The RXD of IC11, TXD end is a serial port, for display provides shows signal.RXD end data end joins with the side a and b of IC13; TXD is a clock pulse, joins with the CLK end of IC13 and the CLK end of IC14 respectively.The Q0-Q6 of IC13 end then joins with display circuit, and Q7 then joins with the side a and b of the serial/parallel transducer of next stage.The Q0 of IC14 end send control signal to the appliance switch circuit, and the Q1-Q7 end then IC31 in Fig. 4 and IC32 send control signal.The ALE end of IC11 connects ALE end and the TMRIN end of IC12 respectively.The RD end of IC11 joins with the RD end of IC12 and the RD end of IC21 respectively; Its WR end joins with the WR end of IC12 and the WR end of IC21 respectively.The RESET end of IC11 joins with the RESET end of IC12, and power Vcc connects the RESET end of IC11, IC12 after capacitor C 11, R11 charging time-delay.The X1 of IC11, X2 termination crystal oscillator J11, EA termination power Vcc.IC32KC end among P34 termination Fig. 4 is loudspeaker switch, follows the Push And Release according to the height decision loud speaker of P34 output level.This machine of P35 end output main telephone line is plucked, on-hook signal, and the P33 end is then exported the speaking circuit mute signal, and high level is effective.P10 is when automatic off-hook, and whether detect has the manual off-hook of owner, and the manual off-hook of owner when P10 is high level, P10 do not have manual off-hook during for low level.The P11 termination is received ring and is judged signal, and high level is no bell, and low level is for there being bell.The P12 end joins with the ACL end of IC21, for recording special chip IC 21 provides reset signal (low level is effective).P13 end output tracking telephone wire (from line) is plucked, on-hook signal, and the output high level is off-hook then, and output low level is on-hook then.The P14-P17 end then connects the keyboard ordinate.

The PA0-PA7 end output analogue-key signal of IC12, by IC43, IC44 (cmos signal switch) simulates push button signalling for the ic chip in the dial-up circuit 72 provides.Keyboard horizontal line among PB0-PB7 termination Fig. 5.The PC0-PC5 end is data receiver, and PC0-PC3 receives the data of sending from ic chip 71 in the DTMF receiving circuit, and PC4 is the effective indication ends of data, and data are effective when the PC4 termination is received high level.PCS termination busy tone testing circuit, when receiving high level for no busy tone, when receiving low level for busy tone is arranged.The TMROUT end output frequency of IC12 is the pulse signal of 1K, arrives signal distributor ic chip 32 in Fig. 4 after R38, C36, W35, C37 filtering, the dividing potential drop, thereby sends " ticking " sound in loud speaker.

Fig. 3 is this computerized telephone solid recording circuit figure (solid recording is digital recording again).IC21 is the solid recording chip, adopts the long-time solid recording chip TC8831 of Toshiba, and record length can reach 25 minutes under the 11KHz sampling rate.IC22-IC24 is DRAM, adopts 41256,511000 or 514000 types.The B0 of IC21, B1, RS1, RS2, M1, M2 end connect power Vcc or ground behind switch.Wherein RS1, RS2 two ends determine the capacity of DRAM, and promptly according to the difference of RS1, RS2 two ends level height, the capacity of DRAM is divided into 256K, 1M, 4M third gear.And the sheet number of used DRAM determines just that by M1, M2 end level range of choice is the 1-4 sheet.Sampling rate when B0, B1 decision IC21 places manual operation.XI XO two termination crystal oscillators.EOS end output services index signal, PB end output recording playback sound index signal.PB output high level is a tone playing state, and low level is a recording state.For recording playback sound state can clearly be shown, adopt controlled light-emitting diode D21, D22 indicates.Wherein triode V23 emitter connects D21, D22 negative terminal, and grounded collector, base stage connect the EOS end of IC21.The PB end of IC21 connects the base stage of V22 in V21 respectively.The emitter of V22 connects power Vcc, and collector electrode connects the D21 anode.The V23 collector electrode connects power Vcc, and emitter connects the D22 anode.When IC21 works, its EOS end output low level, the V23 conducting, light-emitting diode D21, D22 negative terminal are low level.Because the PB end is low level, V22 conducting, the luminous indication of D21 during recording; PB output high level during playback, V21 conducting, the luminous indication of D22.IC22-IC25 is that their data wire of dram chip, address wire and control line all connect together with IC21, and wherein the CAS1 of IC21, CAS2, CAS3, CAS4 connect 16 pin (they are sheet choosing end separately) of four dram chips respectively.The AD0 of IC21 is the playback output, its output signal A signal distributor IC31 in the map interlinking 4 after filtering is amplified; The ADI end is recorded audio signals B input, and this signal is from IC31.

Fig. 4 is signal distribution circuit and appliance switch circuit diagram.The signal distribution circuit core parts are IC31 and IC32, adopt 4016 or 4066 type CMOS integrated packages.B, C, the D end of the A of IC31, B, C, D end and IC32 connect together.The KA of IC31, KB, KC, KD end link to each other with Q7, Q5, Q4, the Q6 end of serial/parallel change-over circuit IC14 among Fig. 2 respectively.The KA of IC32, KB, KD end join with Q3, Q1, the Q2 of IC14 respectively, and the KC end then joins with the P34 end of IC11.Wherein KA, the KB of four bidirectional switch IC31 IC32, KC, KD end are accepted control signal respectively, the switching of determine switch, thus realize the signal allocation function.Microphone MIC output connects the A1 end of IC32 after triode V32 and V34 amplification.The TMROUT of IC12 end meets partial pressure potential device W35 among Fig. 2 behind the RC filter that R38, C36 form, and connects the D1 end of IC32 again through capacitor C37.The C1 end of IC32 connects triode V33 base stage after capacitor C 38, the V33 emitter connects the input of power discharging IC 33, and IC33 selects TBA820 for use, and the output of IC33 connects loud speaker through capacitor C 314.V33 and IC33 all are used for amplifying from the output signal of IC32 C1 end.Speaking circuit C end is to realize hand-free function among B1 termination Fig. 6 of IC32.The B1 of IC31 end connects the collector electrode of triode V31 after capacitor C 33, the base stage of V31 then through capacitor C 32 resistance R 31 after in the map interlinking 3 AD0 of IC21 hold.Therefore the playback signal A of the AD0 of IC21 end output sends into the B1 end of IC31 after V31 amplifies.The C1 end of IC31 is connected with the ADI of IC21.The A1 end of IC31 is connected with triode V75 collector electrode among Fig. 6.The D1 end of IC31 is connected with the base stage of triode V74 among Fig. 6.

All analog signals are by IC32, IC31 conversion, and this conversion is gone out to manage the device control signal and flowed to by little.Electronic switch opening and closing by with the decision of their corresponding control end level.Just determine switch between A1 and A as KA end level.Following table is the state of IC31 under each function, IC32 control end level:

	IC32				IC31
									Function	KA	KB	KC	KD	KA	KB	KC	KD
Owner leave a message (indoor)	H	L	L	L	L	L	L	L
									Owner leave a message (strange land)	L	L	H	L	H	L	H	L
Guest's message	L	L	H	L	H	L	H	L
									Put message (indoor)	L	L	H	L	L	H	L	L
Put message (strange land)	L	L	H	L	L	H	L	H
									Tick (during the operation of strange land)	L	L	H	H	L	L	L	H
(during in-house operation) ticks	L	L	H	H	L	L	L	L
									Hands-free	L	H	H	L	L	L	L	L
Wait for	L	L	H	L	H	L	L	L

Appliance switch mainly is made up of photoelectrical coupler IC34, triode V35, V36 and relay J.The input of photoelectrical coupler IC34 joins with the Q0 end of IC14 among Fig. 2, output termination triode V35.The base stage of triode V36 connects the collector electrode of V35, and collector electrode connects power supply, and emitter connects power supply after relay J.And the contact of relay is connected in 220 volts of current supply circuits of interchange.Therefore when the Q0 of IC14 end output high level, this signal by the V35 promotion, makes the V36 conducting through the IC34 coupling, and then relay J gets electronic work.The electric power supply loop is connected.Thereby play household electrical appliance are carried out open/close effect.

Fig. 5 is keyboard and multi-way switch circuit.Keyboard comprises two parts, and a part is telephone keypad (or numeric keypad); A part is a function keyboard, mainly contains playback button, record button, password input operating key, follow-up call number input operating key, automatic redial key, Hands-free key etc.The core parts of variable connector are IC41-IC44, and wherein IC41, IC42 select 4066 or 4016 for use.IC43, IC44 select 4551 for use.Four ordinates of telephone keypad connect A, B, Z0, the Y0 of C, D end IC43, X0, the W0 end of IC41 respectively.Article four, horizontal line connects W0, X0, Y0, the Z0 end of A1, B1, C1, D1 end and the IC44 of IC42 respectively.The P14-P17 end of IC11 in the A1 of IC41, B1, the map interlinking 2 of C1, D1 end difference, its KA, KB, KC, KD end all connect power Vcc.The PB0-PB3 of IC12 end among the A of IC42, B, C, D termination Fig. 2, its KA, KB, KC, KD end all connect power Vcc.The PA0-PA3 end of the W1 of IC44, X1, Y1, Z1 termination IC12, the IC72 among W, X, Y, Z termination Fig. 6, and CTRL termination power Vcc.The PA4-PA7 end of the Z1 of IC43, Y1, X1, W1 termination IC12, IC72 among Z, Y, X, W termination Fig. 6, and the P14-P17 of IC11 holds in four ordinate map interlinkings 2 of CTRL termination power Vcc function keyboard, and two horizontal lines meet the PB4 of IC12, PB5.The PB6 of IC12 among Fig. 2, PB7 termination switches set K1, and switches set K1 joins with the P14-P17 of IC11 end.Different microprocessors according to set condition among the switches set K1 scan different signals, thereby can determine several reproducer system work afterwards of bell ring by the user.

When Vcc is high level, telephone keypad is as the numeric keypad of microprocessor, Z, X, Y, W and Z1, X1, Y1, W1 connect, and all switch connections of IC41, IC42: when Vcc is low level, numeric keypad is used to dial-up circuit, Z, Y, X, W and Z0, X0, Y0, W0 lead to, and all switches of IC41, IC42 cut out.And their power supply is born jointly by telephone wire (VCC1) and VCC.

Speaking circuit, busy tone detection, DTMF reception, owner's picking/hanging machine detection circuit, dial-up circuit, ring, tracking circuit etc. are seen Fig. 6.Speaking circuit, ringing circuit all adopt common circuit in the existing electronic telephone.The Dual Tone Multifrequency receiving circuit is made of IC71 selects MC145436 for use, and dial-up circuit mainly is made of IC72, selects VT91210 or UM91210 for use.Busy tone detects mainly to be made up of IC73, and IC73 selects NE567 for use, and is connected into the narrow band phase lock loop form.Tracking circuit mainly is made up of triode V77 and V78.

Outside line S1 one tunnel connects the input of ringing circuit and photoelectrical coupler IC74 respectively behind R71, C71 isolation, full-bridge rectification, voltage regulation filtering, the P11 of IC11 end in the output map interlinking 1 of IC74.When external bell signal, ringing circuit sends ringing tone on the one hand, and photoelectrical coupler output is sent signal to the P11 of IC11 end on the other hand.Another road of outside line S1 connects the emitter of triode V71 after full-bridge rectification.The D6 effect is that V71 is protected.The collector electrode one tunnel of V71 is connected telephone circuit, and another road connects the base stage of triode V75 by C78.The base stage of V71 connects the collector electrode of triode V72.The base stage of V72 connects full-bridge rectification output behind resistance R 75, diode D1 and switch hook W1-A.Therefore as long as pick up phone SW1-A closure, the V72 conducting makes the V71 conducting, thereby this computerized telephone is connected with outside line.The base stage of while V72 is the P35 of IC11 end in resistance R 74, diode D2 map interlinking 1 also, if the P35 of IC11 end output high level, then V72 conducting, thus make also conducting of V71.The V71 collector electrode also connects the base stage of triode V79 through Zener diode D3, resistance R 723 simultaneously, forms manual on-hook detection circuit.The grounded emitter of triode V79, collector electrode one tunnel connect the P10 end of IC11, and one the tunnel connects power Vcc through R720.P35 is a high level when automatic off-hook, V72, V71 conducting, and V71 collector electrode output 5V voltage, D3 is breakdown, thus the V79 conducting, the P10 end of IC11 is received low level.The closed V79 of SW-A, SW-B is a high level by P10 if pick up this computerized telephone microphone this moment; If pick up the extension set microphone or press the extension set Hands-free key, because the telephone wire load increases the weight of, this moment, the D3 negative terminal voltage must descend, and D3 ends, and V79 is a high level by P10 also.

Another that is used to follow the tracks of an outside line S2 connects full-bridge rectification, and full-bridge rectification output connects the emitter of triode V78.The V78 collector electrode connects the V71 collector electrode, and base stage connects triode V77 collector electrode through resistance R 725.The P13 end of V77 base stage IC11 in R727 map interlinking 2, grounded collector.When the P13 of IC11 end output high level, then the V77 conducting makes also conducting of V78, thereby outside line S2 connects with this computerized telephone, realizes following the tracks of and converses.IC73 and peripheral circuit constitute busy tone and detect, and wherein connect V78 collector electrode and V71 collector electrode respectively behind the 3 foot meridian capacitor C714 of IC73.The PC5 of IC12 end in the output 8 pin map interlinkings 1 of IC73.8 pin of IC73 are low level after detecting the 450HZ audio signal, and this lockin signal is delivered to the PC5 end request microprocessor processes of IC12.

Connect the collector electrode of triode V75 behind the 7 foot meridian capacitor C79 of IC71, the base stage of V75 then connects the collector electrode of V71 by C78.Therefore when the V71 conducting, the double-audio signal of outside line is sent into 7 pin of IC71 after V75 amplifies.2,1,14,13 pin of IC71 are data output end, and whether effectively the 12nd pin is data indication ends, and 2,1,14,13,12 pin join with the PC0-PC4 of IC12 among Fig. 1 respectively.After IC71 received a pair of effective double-audio signal, 12 pin became high level by low level, thereby 2,1,14,13 data of being exported are received by the IC12 of Fig. 2.

Z, the Y of IC44, X, W end in the 1-4 pin map interlinking 5 of IC72, Z, the Y of IC43, X, W end in the 15-18 pin map interlinking 5 of IC72 are to accept various dialing signals.Wherein 12 pin of IC72 are the touch-tone signal output, and output signal is amplified after V71 delivers to outside line S1 by V73, or delivers to outside line S2 through V78.13 pin are the mute signal output, connect telephone circuit.The P33 of IC11 end also is the mute signal output among Fig. 1, also connects telephone circuit.The V74 collector electrode connects the V71 collector electrode, arrives the V74 base stage from the audio signal E of Fig. 4 IC31 D1 through C77, amplifies through V74, and S1 sends by telephone wire.Signal C is hands-free signal output part, and map interlinking 4 IC32 B1 deliver to the audio amplifier circuit that V33, IC33 form by IC32.

Fig. 7 is this computerized telephone software main flow chart.At first carry out initialization, judged whether that then key presses,, do not judge then whether the tinkle of bells reaches set point if having if then enter key handling process is arranged.Need then to judge whether to follow the tracks of if the tinkle of bells reaches set point, do not need to follow the tracks of and then put owner's message; Need to follow the tracks of then dialing automatically.If the tinkle of bells does not arrive set point and judged whether that then the guest leaves a message, do not have and then return; Have and show that then message number of times and per ten seconds sound once " tick ", return after having rung.Owner's message is put the back judgement well and is had or not the password input, has then to enter the cryptographic processing sub-process, and nothing is then sent " ticking " long and recorded then, returns after recording is finished.Then dial automatically if need to follow the tracks of, connect phone then, finish to return after conversation is finished.

Again referring to Fig. 8, enter the numerical key sub-process after, judge whether to hang on not pick up and then carry out hands-free processing earlier, then dial, judge whether then to have dialled, dialled and then judge whether to put through.Put through then judging whether to hang on or owner presses Hands-free key, as picking up or returning by next.Do not put through then on-hook.Enter and judge whether to hang on after redialing flow process automatically, do not pick up and then carry out hands-free processing earlier, handle the back well and dial again from redialing in the register peek.Judge whether after the dialing to hang on, do not pick up and then judge whether to press Hands-free key.As picking up or returning by next.Otherwise then rejudge up to symbol and condition.Under the cryptographic processing flow process, have and put message, owner's message, elimination message automatically.Number is followed the tracks of in input, control changes password.Whole enter key handling procedures after above-mentioned sub-process is finished.

As shown in Figure 9, have under the key handling process that numerical key is handled, hands-free, owner's message, automatically put message, eliminate sub-processes such as guest's message, input tracking number, device for switching, input password.Enter owner and leave a message and record after the sub-process, judged whether key after recording is finished.Then judge whether 15 seconds, then returned if there is key then to return, do not have by 15 seconds.Automatically put in the message sub-process, at first playback has judged whether key then.Have key then to return, no key then judges whether to have put recording, has not put and has then continued playback, returns if put then.When the elimination guest leaves a message, then need only the register zero clearing, return then.After entering input codon flow process, whether at first judge the input password, if to then returning, if less than then having judged whether key to 5.If there is key then to judge whether numerical key, not that numerical key then directly returns.If then record is judged numeral then whether to 5, to then returning,

After entering the device for switching sub-process, at first judge the electrical equipment present status,,, no matter carry out opening action or closing motion, all return after action is finished if being in on-state then closes electrical equipment if being in closed condition then connects appliances power source.

Enter after input follows the tracks of the number sub-process, whether at first judge password, if then directly return to 16, if less than then having judged whether key to 16.There is key then to judge whether to be numerical key, if record then, if not numerical key then returns.

Claims (10)

1. computerized telephone, comprise an acknowledge(ment) signal and handle after send microprocessor, speaking circuit, DTMF receiving circuit, keyboard and dial-up circuit, ringing circuit, the solid recording circuit of instruction, it is characterized in that microprocessor serial delivery outlet connects signal distributor behind serial/parallel change-over circuit, microprocessor data mouth one tunnel connects solid recording circuit, one the tunnel connects parallel port, and solid recording circuit also joins with signal distributor; Signal distributor one tunnel is connected telephone circuit, and one the tunnel connects outside line, and speaking circuit also connects outside line; Parallel port connects variable connector, keyboard, DTMF receiving circuit and busy tone testing circuit respectively, and keyboard joins with variable connector and microprocessor I/O mouth respectively, and the I/O mouth of microprocessor also joins with ringing circuit and tracking circuit, manual off-hook detection circuit; Busy tone testing circuit, DTMF receiving circuit, dial-up circuit, ringing circuit, tracking circuit all join with outside line, and tracking circuit also joins with another outside line.

2. computerized telephone according to claim 1, the core parts that it is characterized in that variable connector are 4511 and 4066.

3. computerized telephone according to claim 1, it is characterized in that also comprising a manual off-hook detection circuit of forming with Zener diode and triode and resistance, electric capacity, and Zener diode is connected between transistor base and the speaking circuit input, transistor emitter ground connection, collector electrode one tunnel connects the microprocessor input, and one the tunnel connects power supply behind resistance.

4. computerized telephone according to claim 1 is characterized in that serial/parallel change-over circuit delivery outlet connects display circuit.

5. computerized telephone according to claim 1 is characterized in that serial/parallel change-over circuit delivery outlet connects the appliance switch circuit.

6. computerized telephone according to claim 1 is characterized in that solid recording circuit is connected to controlled light-emitting diode, with indication recording playback sound state.

7. computerized telephone according to claim 1 is characterized in that microprocessor is 8051 integrated packages or 8751 integrated packages.

8. computerized telephone according to claim 1 is characterized in that signal distributor also connects loud speaker through triode, power discharging integrated block.

9. computerized telephone according to claim 1 is characterized in that parallel port output connects the microprocessor input behind switches set K1, so that the selective ringing number of times.

10. computerized telephone according to claim 1, the core parts that it is characterized in that solid recording circuit are TC8831.

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