CN2259030Y

CN2259030Y - Telephone set capable of pre-dialling

Info

Publication number: CN2259030Y
Application number: CN 96212672
Authority: CN
Inventors: 胡小山; 常铸
Original assignee: CHANGXIN ELECTRONIC Co Ltd FUJIAN
Current assignee: CHANGXIN ELECTRONIC Co Ltd FUJIAN
Priority date: 1996-05-20
Filing date: 1996-05-20
Publication date: 1997-08-06
Anticipated expiration: 2006-05-20

Abstract

The utility model relates to a pre-dialed telephone which is suitable for a wired city telephone system and comprises a receiver, a base, a keyboard and an inner circuit also comprising a dialing integrated circuit, a speech circuit, a pulse audio number emitting circuit and a control circuit for dialing sequence. The utility model is characterized in that the control circuit for dialing sequence in the circuits is connected with the dialing integrated circuit and controlled by the keyboard, off-hook, on-hook and ringing signals. The telephone has the operating mode of first dialing and then picking the receiver, and realizes the features of no busy lines in dialing and rapidly sending number after the receiver is picked.

Description

Can give first dial telephone set

The utility model relates to the communications field, particularly a kind of improvement that is applicable to wired local telephone system telephone set.

For a long time, the mode that tradition is made a phone call is not left in the development of telephone set technology all the time, and promptly the user must connect earlier telephone line, after dial.Mode does not change because tradition is made a phone call, cause the dual-tone multifrequency number of sending out mode that current electron exchanger and programme-controlled exchange machine technology and telephone set adopt fast and accurately obviously advantage be subjected to the restriction of subscriber dialing speed, acomia giving full play to.

The purpose of this utility model be on all kinds of telephone sets basis of (comprising ordinary telephone set, loudspeaking telephone set, hand-free telephone, radiophone, dtelegraphone, video telephone set, coin-box telephone set, card phone machine etc.) design one dialing the line is busy, carry machine rapidly the number of sending give first dial telephone set.

Task of the present utility model is to realize like this, can give first dial telephone set comprise receiver, support, keyboard and in establish circuit, establish circuit in wherein said and also comprise dialing integrated circuit, speaking circuit, pulse signaling circuit and audio sending circuit and dialing time sequence control logic circuit, it is characterized in that the dialing time sequence control logic circuit in the foregoing circuit joins with the dialing integrated circuit, dialing time sequence control logic circuit is controlled by keyboard, dislodging machine and bell signal.Dial from keyboard earlier during use, dialing is finished, and (time length is set by dialing time sequence control logic circuit) mentions microphone in time rating, when audio status, dial the number and send fast and connect with the speed of about 5 numerals of per second immediately; Run into line be busy, press redial key, former dialing the number sent automatically fast.

The utlity model has " dialing earlier; after carry machine " mode of operation, especially adopted technique scheme, make the utility model related give first dial telephone set realized the dialing the line is busy, put forward the machine characteristics of the number of sending rapidly, thereby the shortcoming of busy line when having changed the conventional telephone set dialing, improved the utilance of post and telecommunications circuit effectively, one calm dialing time is provided also for the person of calling and does not influence the reception incoming call during this period, simultaneously can compatible traditional mode of dialing.

The utility model is described in further detail below in conjunction with legend:

Fig. 1, can give first dial telephone set schematic block circuit diagram

Fig. 2, dialing time sequence control logic circuit theory diagrams example

With reference to Fig. 1, can give first dial telephone set schematic block circuit diagram, the circuit of this telephone set is formed and is comprised keyboard, the dialing integrated circuit, speaking circuit, pulse signaling circuit, audio sending circuit and dialing time sequence control logic circuit, dialing time sequence control logic circuit joins with the dialing integrated circuit, and provide the benchmark sequential by keyboard dialing, dialing time sequence control logic circuit is controlled by keyboard, dislodging machine signal, dislodging machine signal is taken from phone hook switch rear end, also gets signal controlling dialing time sequence control logic circuit at the hook switch front end and remove the benchmark sequential when bell signal comes.The required power supply of circuit can be provided by telephone line, also can be provided by built-in power.

With reference to Fig. 2, dialing time sequence control logic circuit theory diagrams example, in the dialing time sequence control logic circuit or door have four signal input parts, and the output with monostable T5, T4, T2 and T6 is connected respectively, and its output is connected with the HK end of dialing integrated circuit; The input of electronic switch J is connected with the output of monostable T3, and its two output connects R4 and C4 end in the dialing integrated circuit respectively.The relation of this dialing time sequence control logic circuit when operation is:

1, dialing: press required number, dialing integrated circuit M end output one signal process or door 1 trigger monostable T1, and monostable T1 produces a fiducial time (tentative 15 seconds), monostable T2 was in fiducial time treats operating state.After dialing finished, the dialing integrated circuit was noted institute and is dialled the number.During this period, if meet bell signal, this signal is through capacitor C 1, C2, resistance R 1, R2, after the circuit dividing potential drop of forming with diode D, rectification, the filtering, by after not gate 11 paraphase to the control pin R end of monostable T1, monostable T1 is reduced, stop fiducial time, monostable T2 closes, and carries machine this moment, connects incoming call, the M end is that bell signal is taken from phone hook switch front end from dialing integrated circuit M end among the figure.

2, conversation: carry machine after dialing finishes, in fiducial time, carry machine signal triggering monostable T2, monostable T2 produce a pulse through or the door 2 integrated circuit HK end that goes to dial, for the dialing integrated circuit provides enabling signal.Monostable T2 triggers monostable T3 and opens electronic switch J and connect R4, C4 end in the dialing integrated circuit after 1/2nd seconds, makes the dialing integrated circuit send institute and dials the number.Meanwhile, the output signal warp or the door 1 of dialing integrated circuit M end trigger monostable T1, make it that be provided fiducial time once more.Carry the machine on-hook signal among the figure and take from phone hook switch rear end.

3, redial:

A, the other side nobody when connecing, on-hook in fiducial time, on-hook signal triggers monostable T4 through not gate 12, monostable T4 produce a pulse through or the door 2 integrated circuit HK end that goes to dial, for the dialing integrated circuit provides enabling signal.Carry machine this moment, carries machine signal triggering monostable T2, monostable T2 produce a pulse through or door 2 go to dial integrated circuit HK end, for the dialing integrated circuit provides enabling signal.Monostable T2 triggers monostable T3 after 0.5 second, makes monostable T3 open electronic switch J and connects dialing integrated circuit R4, C4 end, makes the dialing integrated circuit send institute and dials the number.Meanwhile, the output signal warp or the door 1 of dialing integrated circuit M end trigger monostable T1, make it that be provided fiducial time once more.

B, redial outward for fiducial time, press redial key, monostable T5 produce a pulse through or the door 2 integrated circuit HK end that goes to dial, for the dialing integrated circuit provides enabling signal (during the number of changing with).Redial signal process or door 1 triggering monostable T1 simultaneously, monostable T1 produces a fiducial time, monostable T2 was in fiducial time treats operating state.Carry machine this moment, monostable T2 produce a pulse through or the door 2 integrated circuit HK end that goes to dial, for the dialing integrated circuit provides enabling signal.Monostable T2 triggers monostable T3 after 0.5 second, makes monostable T3 open electronic switch J and connects dialing integrated circuit R4, C4 end, makes the dialing integrated circuit send institute and dials the number.Meanwhile, the output signal warp or the door 1 of dialing integrated circuit M end trigger monostable T1, make it that be provided fiducial time once more.

C, change number the time run in dialing and to dial a wrong number or the number of changing, and only need press redial key, monostable T5 produce a pulse through or the door 2 integrated circuit HK end that goes to dial, for the dialing integrated circuit provides enabling signal, can dial again.

4, on-hook is hung up behind the end of conversation, and on-hook signal triggers monostable T4 through not gate 12, monostable T4 produce a pulse through or the door 2 integrated circuit HK end that goes to dial, make the dialing integrated circuit provide enabling signal for dialing next time.

5, do not propose machine or mistake dialing for preventing after the dialing, dialing next time made a mistake, be provided with monostable T6, this circuit fiducial time finish the back produce a pulse through or the door 2 integrated circuit HK end that goes to dial, for the dialing integrated circuit provides enabling signal.

Claims

1, a kind ofly gives first dial telephone set, comprise receiver, support, keyboard and in establish circuit, establish circuit in wherein said and also comprise dialing integrated circuit, speaking circuit, pulse signaling circuit and audio sending circuit and dialing time sequence control logic circuit, it is characterized in that the dialing time sequence control logic circuit in the foregoing circuit joins with the dialing integrated circuit, dialing time sequence control logic circuit is controlled by keyboard, dislodging machine and bell signal.

2, according to claim 1ly give first dial telephone set, it is characterized in that in the above-mentioned dialing time sequence control logic circuit or gate output terminal connect the HK end of dialing integrated circuit, two outputs of electronic switch J connect R4, the C4 end in the dialing integrated circuit respectively.

3, describedly give first dial telephone set according to claim 1,2, it is characterized in that in the above-mentioned dialing time sequence control logic circuit or door have four signal input parts, and be connected with the output of monostable T5, T4, T2 and T6 respectively.

4, according to claim 2ly give first dial telephone set, it is characterized in that the input of the electronic switch J in the above-mentioned dialing time sequence control logic circuit is connected with the output of monostable T3.