CN1138394C - Telephone set with multiple numbers - Google Patents

Abstract

The present invention a telephone with multiple numbers, which comprises a switching and mixing circuit. The telephone is provided with a plurality of input branch circuits, the input branch circuits, a talking circuit and a dialing circuit are connected in series through the switching and mixing circuit, and thus, the input branch circuits, the talking circuit and the dialing circuit are selectively communicated and communicated in a compound mode. A plurality of telephone wires can be connected simultaneously, namely that the telephone has a plurality of numbers. A person can answer one call once, other calls are waiting, and a plurality of calls can be answered simultaneously; the person dials one call, other calls are waiting, and a plurality of calls are dialed simultaneously.

Description

The telephone set of Multi-Subscriber Number

The present invention relates to a kind of telephone set in the telephone communication, particularly a kind ofly can be connected to the telephone set that multiple phone line promptly has a plurality of numbers simultaneously.

The present used telephone of people, a telephone set can only connect a telephone wire, when telephone set just in use, wait state can't be connected or be in to other phone, in office, is placed with many telephone sets on the desk especially, take up space, use inconvenient.

The purpose of this invention is to provide and a kind ofly can be connected to the telephone set that multiple phone line promptly has a plurality of numbers simultaneously, can answer a plurality of phones simultaneously, also can transfer to a plurality of phones simultaneously.

To achieve the above object, technical scheme of the present invention is as follows:

A kind of telephone set of Multi-Subscriber Number comprises transmitter, receiver, keyboard, dial-up circuit, power supply circuits, speaking circuit, ringing circuit, polarity switching; Telephone wire is connected with ringing circuit, and ringing circuit and polarity switching connect and compose the input branch road of telephone set; The input branch road is connected with speaking circuit, dial-up circuit respectively; Speaking circuit is connected with transmitter, receiver; Dial-up circuit is connected with keyboard; Power supply circuits are powered to telephone set; Described telephone set also comprises the switching hybrid circuit; Described telephone set is provided with some input branch roads; Described switching hybrid circuit is serially connected between input branch road and speaking circuit and the dial-up circuit; Described polarity switching and switch is serially connected with between the hybrid circuit holds music the generation circuit; Switch hybrid circuit and comprise several switches, K3 to Kn interlock switch, K1 are K3 to Kn reset switch, and K2 is independent button self-lock switch; Each imports the input that branch road is connected to K3 to Kn respectively, K3 to Kn is the cut-through switch of each input branch road, the output of K3 to Kn is attached to logical suitable circuit, because the interlocking capability of K3 to Kn, article one, the input branch road enters and treats operating state, and it is that music is waited for triggering/shutdown switch that circuit takes place that other branch road disconnects take-up K1; Each imports the input that branch road also is connected to K2 respectively, and the output of K2 is attached to speaking circuit;

Because adopt above-mentioned structure, this telephone set can be connected to multiple phone line simultaneously and promptly have a plurality of numbers.Can once answer a phone, allow other phone waits, also can answer several phones simultaneously.Outgoing Call also is like this.Easy to use, simple in structure and cost is low.

The present invention is further detailed explanation below in conjunction with drawings and Examples:

Fig. 1 is a logic diagram of the present invention;

Fig. 2 is the circuit diagram that ringing circuit, polarity switching and the music of a kind of embodiment of the present invention waited for circuit;

Fig. 3 is the circuit diagram of the switching hybrid circuit of a kind of embodiment of the present invention;

Fig. 4 is the circuit diagram of the dial-up circuit of a kind of embodiment of the present invention;

Fig. 5 is the circuit diagram of the speaking circuit of a kind of embodiment of the present invention.

Fig. 2 to Fig. 5 provides the telephone set of No. two, an a kind of machine.

Ringing circuit A, B are made of electronics twotone ring integrated circuit and each peripheral cell, now are input as example with the A road and are illustrated.A road ringing circuit is made up of elements such as C23, R23, LED22, IC203, piezoelectric speaker BZ21, C23 is the ringing-current coupling capacitance, R23 is the step-down current-limiting resistance, IC203 is an electronics twotone ring integrated circuit, rectification of interior band and pressurizer, the capacity of C25 and the resistance of R25 have determined the switching frequency and the pitch frequency of ring back tone, C27 is the audio frequency output coupling capacitor, K21 can control the size of ring sound, and it still is the B line for the A line that LED22, LED24 luminous tube can be indicated incoming call respectively.

Behind the receiver off-book, press the K1 of Fig. 3, send AK or BK music maintenance triggering signal respectively from 11 pin or 8 pin of K1, be example with the outside line of A road now, the R21 of the decent Fig. 2 of triggering signal etc. delivers to the b utmost point of Q21, Q21, Q23 saturation conduction, outside line is split into the loop through e, the c utmost point of Q23, music integrated block IC 21 gets electric work, from 3 pin outputting music signals, delivers to outside line through Q23.As the K3 that presses Fig. 3 again, A+ and A-insert V+, the Vss of Fig. 4 again, and the Q41 saturation conduction among Fig. 4 makes the e of Q23 of Fig. 2 extremely anti-partially, c utmost point positively biased and ending, and music waits for that circuit quits work.

Pulse dual-tone dialing circuit is made of IC5 (W91531A) and peripheral cell.The DZ42 of the D59 of Fig. 5, D517, R510 and Fig. 4, C42, C41 etc. form the power supply circuits of IC5, at the mobile phone off hook state, the DC feedback of outside line is just being passed through polar switching diode bridge (DD21 of Fig. 2 or DD22), R27 and is being mixed the Q41 from the V+ contact of Fig. 3 to Fig. 4 of diverter switch partly through Fig. 3 and working power is provided for section dialing in IC5 to 16 pin of the IC5 of Fig. 4 again to SW51, the R57 of Fig. 5, R58, D510.At hands-free off hook state, feed is just passing through polarity switching (DD21 of Fig. 2 or DD22), R13 to be mixed the Q41 of diverter switch from Fig. 3 (V+) contact to Fig. 4 partly through Fig. 3 and provides working power to the VDD contact of Fig. 4 to IC5 again to SW51, inductance L 51, R517, the D59 of Fig. 5.

The R41 of Fig. 4 provides small and weak memory to keep electric current to IC5 for memory resistor when the on-hook, DZ42 is the voltage-limiting protection voltage stabilizing didoe, and C41, C45 have played the effect of the level and smooth and High frequency filter bypass of direct current to power supply.

The Q42 of Fig. 4, D42 etc. form the switch hook signal circuit, be added to the b utmost point of Q42 through SW41, D41, R42 at mobile phone off hook state feed V+, the Q2 saturation conduction, make the 12 pin start ends of IC5 become low level VSS, 13 pin pulse output ends output high level VDD, Q44, Q41 be saturation conduction under high level control, and phone DC feedback loop is connected, and dialing chip IC 5 enters a number state of grade; At hook state, the b utmost point of Q42 ends because of no forward bias, and 12 pin of IC5 become high level again, and 13 pin output low level VSS, Q5, Q1 end under low level effect, and speaking circuit disconnects, and dialing chip IC 5 enters resting state.10 pin of IC5 input low level under the effect of sensitive switch K42 when hands-free off-hook, the hands-free triggering output output of 11 pin high level, D45, Q44, Q41 saturation conduction, the phone DC loop is connected, the dialing chip enters number state of sending out of waiting for, when hands-free on-hook, the 10 pin input low levels of IC5, the upset of IC5 internal hands-free circuits for triggering, 11 pin output low levels, D42, Q44, Q41 end, and speaking circuit disconnects, and the dialing chip enters resting state.7,8 pin of IC5 and crystal oscillator X41, C43, C44 form the dialing clock oscillator, and the 1-4 pin of IC5 and 17-20 pin are formed 4 * 4 dialing signal input circuits.K41 is the P/T switch, is the voice-frequency dialing mode when 15 pin of IC5 are low level VSS, is pulse dialing method when 15 pin of IC5 are high level VDD.Q44, Q41 saturation conduction under the control of 13 pin high level VDD when the dual-tone dialing state, dial-up circuit is started working, Q43 etc. form the double-audio signal output circuit, when dual-tone dialing, the 14 pin output double-audio signal of IC5, the b utmost point that adds to Q43 through R43 is sent double-audio signal to outside line after amplifying.

9 pin of IC5, D52, the D55 of Fig. 5 etc. form the mute circuit of mobile phone and hands-free state, 9 pin of IC5 output high level when talking state, D52, D55 end, speaking circuit there is not influence, the 9 pin output low levels of IC5 make D52, D55 conducting when dialing, sealed speaking circuit, thereby dial-up circuit can glitch-free work.

Send the words amplifier to form by Q52, the Q56 etc. of Fig. 5, R51, R53, R511 are for sending words amplifier direct current biasing resistance, for Q52 provides the working point, C58 is for exchanging decoupling capacitance, exchange noise jamming to reduce being talked about amplifier, VR51 is the biasing resistor of M1C52, and C52 is for exchanging decoupling capacitance, and D53 is an isolating diode.The telecommunication signal of MIC52 output adds to the b utmost point of Q52 through C56, exports outside line through amplifying the back to from the e utmost point of Q56, and D51, R59, R510 form negative-feedback circuit, and the speech amount is sent in adjusting automatically.

Talked about amplifier and be made up of Q53, Q51 etc., the dc point of amplifying circuit is controlled by R512, and C54 is the interchange shunt capacitance of Q51.The telecommunication signal of outside line input amplifies the back and delivers to receiver BE51 by the C utmost point of Q51 by the b utmost point that R54, C514, R55, C513 add to Q53.R54, C514, R55, R56 form the bridge-type anti-side-tone circuit.D54 is quiet diode, thereby the quiet Mute output low level of the 9 pin Vcc D54 conducting of IC5 when sending out number is closed because the clamping action of D54 talks about amplifier, and R513 is quiet current-limiting resistance.

The speaking circuit dc supply adopts the series voltage mode, and D58, D57, D56 form the diode stabilized voltage power supply, and C58 is for exchanging decoupling capacitance, and C51 is a high-frequency bypass capacitor, and the direct current pressure drop at D58-D56 two ends just becomes the working power of being talked about amplifier.

The IC6 of Fig. 5 (MC34018) and each peripheral cell etc. are formed hand-free circuit, when the mobile phone hook state, click the K42 sensitive switch of Fig. 4,10 pin of IC5 become low level makes the upset of IC5 internal hands-free circuits for triggering, thereby makes circuit working at hands-free off hook state.The inductance L 51 of Fig. 5, C57, DZ51 form hand-free call power circuit partly, and DZ51 is the voltage-limiting protection diode.C57 is for exchanging decoupling capacitance, and the DC power supply anode is delivered to 16 pin of IC6.LED51 is hands-free work indication light-emitting diode, provides operating current by R514, R515.9 pin of IC6 are for sending the words amplifier input terminal, and the voice signal that MIC51 sends by the 4 pin output of IC6, by the b utmost point that C511, R52 are coupled to Q54, is delivered to outside line by the C utmost point of Q54 after amplifying through 9 pin that C505 delivers to IC6 after process is amplified.Accepted call signal is coupled to the b utmost point of Q55 by R516, C512, by the e utmost point output of Q55, is coupled to 27 pin of IC6 again by C59 after amplifying, and amplifies the back and is coupled to loud speaker SP51 by the C14 on 15 pin of IC6.

Switching, hybrid circuit are made up of K1, K2, K3, the K4 etc. of Fig. 3, and K3, K4 are interlock switch, and K1 is the reset switch of K3, K4, and K2 is independent button self-lock switch, and K1-K4 is 4 * 2 key switches.A road outside line L1, L2 are through the polarity switching DD21 of Fig. 2, A+, the A-input port that R27 is connected to Fig. 3.B road outside line L3, L4 are through the polarity switching DD21 of Fig. 2, B+, the B-input port that R28 is connected to Fig. 3.The K4 of Fig. 3 is an A road outside line cut-through switch, 11 pin that A+ is input to K4 from 10 pin of K4 when pressing K4 output to the V+ end of Fig. 4 again, 8 pin that A-is input to K4 from 7 pin of K4 output to the Vss end of Fig. 4 again, A road outside line entered and treated operating state this moment, discharge switch hook or click the hands-free trigger switch K3 of Fig. 4, A road outside line off-hook.The K3 of Fig. 3 is a B road outside line cut-through switch, when pressing K3, because the interlocking capability K3 of K3, K4 resets, the outside line take-up of A road, 11 pin that B+ is input to K3 from 10 pin of K3 output to the V+ end of Fig. 4 again, 8 pin that B-is input to K3 from 7 pin of K3 are input to the Vss end of Fig. 4 again, B road outside line this moment off-hook is pressed K4 once more, because the interlocking capability K3 of K3, K4 resets, the outside line take-up of B road, A road outside line off-hook.The K1 of Fig. 3 is that circuit switches the wait switch, compositions such as the R33 of Fig. 3, D33, C31, R31, C32, R32 are holded music the triggering charging circuit, C31, C32 are storage capacitor, R31, R32 are the bleeder resistor of C31, C32, power supply is just passing through 5 pin of R33, D33, K2,4 pin of K2,3 pin of K4,2 pin of K4, the positive pole of C31 when A road outside line off-hook, the negative pole of C31 is directly received the A-end, and promptly when A road outside line off-hook, storage capacitor C31 begins charging.When B road outside line off-hook, power supply is just passing through 5 pin of R33, D33, K2,4 pin of K2,3 pin of K3,2 pin of K3, the anode of C32, and the C32 negative terminal is directly received the B-end, and promptly storage capacitor C32 begins charging when B road outside line off-hook.

The K4 that supposes Fig. 3 presses, outside line off-hook in A road also connects with one cord circuit, storage capacitor C31 begins charging, click the K1 of Fig. 3 again, because K1 is the reset switch of K3, K4, so K4 resets, this moment, storage capacitor C31 anode electric current outputed to the AK end of Fig. 2 by 2 pin of K4,1 pin of K4,10 pin of K1,11 pin of K1, A road music is waited for the circuit work that is triggered, and makes the outside line of A road receive the music waiting signal but not take-up.Press the K3 of Fig. 3 this moment again, B road outside line off-hook, storage capacitor C32 begins charging, click the K1 of Fig. 3 again, K3 resets, this moment, storage capacitor C32 anode electric current outputed to the BK of Fig. 2 by 2 pin of K3,1 pin of K3,7 pin of K1,8 pin of K1, and B road music is waited for the circuit work that is triggered, and the music waiting signal is received in the outside line of B road.Press the Q41 saturation conduction of K4 Fig. 4 once more, make Fig. 2 Q23 the extremely anti-C utmost point positively biased partially of e and end, music waits for that part quits work, the outside line of A road recovers conversation again.Directly press K3 or K4, then on-hook take-up if think take-up this moment.

K2 is that A road, the outside line of B road mix talk button among Fig. 3, A+ is by 7 pin, 8 pin of K2, the V+ of K2 when K2 presses, A-is by 10 pin, 11 pin of K2, the Vss of D31, K2, thereby A road outside line off-hook, B+ is by 3 pin, 2 pin of K2, the V+ of K2,10 pin, 11 pin of K2, the Vss of B-by D32, K2, thereby also off-hook of B road outside line.Suppose that K4 presses A road outside line off-hook, after the conversation of switch first cord circuit, press K1, after the outside line of A road enters music, press K2, the outside line of A road recovers talking state, and outside line talking state in B road is constant, thereby first, second cord circuit and this machine can carry out Three-Way Calling mutually.

Claims (1)

1, a kind of telephone set of Multi-Subscriber Number comprises transmitter, receiver, keyboard, dial-up circuit, power supply circuits, speaking circuit, ringing circuit, polarity switching; Telephone wire is connected with ringing circuit, and ringing circuit and polarity switching connect and compose the input branch road of telephone set; The input branch road is connected with speaking circuit, dial-up circuit respectively; Speaking circuit is connected with transmitter, receiver; Dial-up circuit is connected with keyboard; Power supply circuits are powered to telephone set, it is characterized in that: described telephone set also comprises the switching hybrid circuit; Described telephone set is provided with some input branch roads; Described switching hybrid circuit is serially connected between input branch road and speaking circuit and the dial-up circuit; Described polarity switching and switch is serially connected with between the hybrid circuit holds music the generation circuit; Switch hybrid circuit and comprise several switches, K3 to Kn interlock switch, K1 are K3 to Kn reset switch, and K2 is independent button self-lock switch; Each imports the input that branch road is connected to K3 to Kn respectively, and K3 to Kn is the cut-through switch of each input branch road, and the output of K3 to Kn is attached to speaking circuit, because the interlocking capability of K3 to Kn, an input branch road enters treats operating state, and other branch road disconnects take-up; K1 is that music is waited for triggering/shutdown switch that circuit takes place; Each imports the input that branch road also is connected to K2 respectively, and the output of K2 is attached to speaking circuit.

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