CN2432738Y

CN2432738Y - Expenses-saving intelligent telephone dail

Info

Publication number: CN2432738Y
Application number: CN 00226213
Authority: CN
Inventors: 李宏民; 李安民
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-03-21
Filing date: 2000-03-21
Publication date: 2001-05-30
Anticipated expiration: 2010-03-21

Abstract

The utility model relates to an expense-saving intelligent telephone dial, which is mainly composed of a signal sampling circuit, an audio decoder, a microprocessor, a memory and an audio code transmitter. The utility model is connected in series between a telephone line and the telephone. As long as users dial according to the mode of dialing an ordinary telephone, the telephone dial can automatically select the most expense-saving mode to put through the telephone. If the dialed numbers are not existed within the expense-saving range, the utility model can put through the telephone by the original numbers, and thus, the purposes of expense saving and convenient operation are attained. The utility model also has the functions of locking for the limitation of dialing, time limitation for talking, reminding in timing, etc. which are desired by users.

Description

Joint takes the smart phone dialer

The utility model is an a kind of joint expense smart phone dialer, and it can select the promotional card conversation approach of the expense of economizing most automatically according to the telephone number that the user dialled, and makes that to dial the promotional card phone simple as dialing common long-distance call, conveniently.

In prior art, dial common toll telephone and have the advantage that the dialing figure place is few, dial convenience and remember easily, but expense is higher.Dial toll telephone with promotional cards such as IP or 300, expense is comparatively cheap, but the dialing figure place is many, dial trouble, be difficult to memory, if the user does not know whether oneself will dial long-distance call is the area of opening of promotional card, he must try to dial once by the promotional card mode, is not to open the area if obtain responding, just be able to common long-distance call mode and dial again one time, the trouble that causes promotional card to use.

The purpose of this utility model is at the problem in the above-mentioned prior art, and a kind of joint expense smart phone dialer is provided, thereby the use that makes promotional card reaches Jie Fei and purpose easy to use with to dial plain old telephone the same.

For achieving the above object, solution of the present utility model is as follows: referring to Fig. 1, it has a shell 1, is provided with telephone line interface J1 and telephone interface J2 on shell; In shell, be provided with the signal sampling circuit 4 that is connected on the telephone line interface terminal, the audio decoder 5 that is connected on the signal sampling circuit output, according to the signal of audio decoder output select most favorable conversation approach microprocessor unit 6, carry out the audio frequency code sender 7 of dialing and the power circuit 8 that is connected on the telephone line interface terminal constitutes according to this microprocessor unit output result, the output of its sound intermediate frequency code sender and telephone line interface terminal join, and described telephone interface is as being serially connected in the input circuit of power circuit 8.

By above-mentioned solution as can be seen, this dialer is serially connected in telephone line between telephone set, as long as the user mentions phone, this dialer will be connected and work simple installation.When subscriber dialing, the audio signal of this number will enter this dialer, enter microprocessor through audio decoder, microprocessor is compared this signal with the information in the memory, judge whether it is the number that promotional card is opened the area, if, it is with the corresponding number information that dials in the promotional card mode that provides, if not, it then provides former number information of dialling the number, and the number information another mistake that the audio frequency code sender provides microprocessor changes audio code into and sends out.Therefore, the user is as long as dial according to the mode of dialing plain old telephone, and this dialer will be selected the getting type of the expense of economizing most automatically, if the number of being dialled not in the saving type, it can be connected with original number again, takes and purpose easy to use thereby reach the phone joint.

Describe structure of the present utility model and operation principle in detail according to embodiment below.

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

Fig. 2, circuit theory diagrams of the present utility model.

Referring to Fig. 1, sequence number 1 is shell, is provided with telephone line interface J1 and telephone interface J2 on this shell, and telephone wire 2 joins by plug J1 ' and telephone line interface J1, and telephone set 3 joins by plug J2 ' and telephone interface J2.

Referring to Fig. 2, audio decoder 5 among Fig. 1 and audio frequency code sender 7 are connected and composed by an audio coding and decoding integrated device 9 and peripheral cell thereof; Microprocessor unit 6 is connected and composed by single-chip microcomputer 6-1 and electrically-erasable memory 6-2; Sample circuit 4 is connected and composed by divider resistance R1, the R2 and the filter capacitor C6 that are connected on device 9 I/O ends, 2 pin and 3 pin; Power circuit 8 is connected and composed by diode bridge rectifier circuit 8-1 and branch pressure-controlled thick film integrated device 8-2, and described device 8-2 constitutes by four transistor switching circuits are integrated.Before using this dialer, must with telephone set card number, the password of each promotional card be set in memory earlier and open the area code in area, after setting is finished, can normally use.When phone is mentioned, two terminal short circuits that are equivalent to telephone interface J2, then telephone wire and telephone line interface J1 connect, and J1 will provide the voltage signal of 6V, this signal process rectification circuit 8-1 and device 8-2 make its operate as normal for device 9,6-1,6-2 provide direct-current working volts; At this moment, single-chip microcomputer 6-1 differentiates control signal from its one of I/O mouth (6～9 pin) output and gives device 9, device 9 according to this signal from its 2, pulldown signal of 3 pin output, this signal makes the voltage of audio frequency signaling terminal S drop-down by sample circuit, then the audio code of phone dial-out will enter device 9 by sample circuit, after 9 pairs of these audio code of device are decoded, give single-chip microcomputer 6-1 from its 11～14 pin output decoder signal, single-chip microcomputer compares the information in this signal and the memory, confirm earlier whether it is the number that most favorable card (as: IP phonecard) is opened the area, if, then single-chip microcomputer provides the dialing signal of most favorable card, if not, single-chip microcomputer can continue to see if it is time promotional card (as: 300 card) again and open the number in area, till selecting the getting type of economizing most expense, if find final this number all not in the area of opening of each promotional card, then single-chip microcomputer will provide former signal of dialling the number; Single-chip microcomputer provided on one by its I/O mouth (6～9 pin) earlier before sending selected dialing signal and draws control signal, make and lift on the voltage of audio frequency signaling terminal S and recover normal, and then send selected dialing signal, this signal is reverse into audio signal through device 9, again by 2,3 pin output, the process sample circuit is delivered on the audio frequency signaling terminal S and is sent, thereby selection is dialed in the intellectuality of finishing the expense of economizing most.Because this dialer has adopted the intelligent circuit of microprocessor, therefore, it can not only be applicable to one or more promotional cards, also can add limit easily dials and to lock, to converse in limited time and the required function of user such as prompting regularly, simultaneously, along with promotional card is opened the constantly open-minded of area, it can add stored information and change stored information easily.

Claims

1, a kind of joint takes the smart phone dialer, has a shell (1), it is characterized in that:

A, on shell, be provided with telephone line interface (J1) and telephone interface (J2);

B, in shell, be provided with the signal sampling circuit (4) that is connected on the telephone line interface terminal, the audio decoder (5) that is connected on the signal sampling circuit output, according to the signal of audio decoder output select most favorable conversation approach microprocessor unit (6), carry out the audio frequency code sender (7) of dialing and be connected on power circuit (8) formation on the telephone line interface terminal according to this microprocessor unit output result, the output of its sound intermediate frequency code sender and telephone line interface terminal join, and described telephone interface is as being serially connected in the input circuit of power circuit (8).

2, joint as claimed in claim 1 takes the smart phone dialer, it is characterized in that: described microprocessor unit is connected and composed by single-chip microcomputer (6-1) and electrically-erasable memory (6-2).

3, joint as claimed in claim 1 or 2 takes the smart phone dialer, it is characterized in that: described audio decoder (5) and audio frequency code sender (7) are connected and composed by an audio coding and decoding integrated device (9) and peripheral cell thereof.