CN2409722Y

CN2409722Y - Multi-purpose double-tone multi-frequency automatic dial apparatus

Info

Publication number: CN2409722Y
Application number: CN 99258748
Authority: CN
Inventors: 朱森祥; 刘方明; 李云刚; 兰菊斐; 洪照明
Original assignee: HUANENG COMMUNICATION DEVELOPMENT Co ZHEJIANG
Current assignee: HUANENG COMMUNICATION DEVELOPMENT Co ZHEJIANG
Priority date: 1999-12-28
Filing date: 1999-12-28
Publication date: 2000-12-06
Anticipated expiration: 2009-12-28

Abstract

The utility model relates to a multi-purpose double-tone multi-frequency automatic dial apparatus, comprising a DPFM signal circuit (4), a keyboard circuit (6), a controller (3) connected with the input end of the DPFM circuit (4), a data memory (2) connected with the input end of the controller (3), a display circuit (1) connected with the input end of the controller (3) and a sounding circuit (5) connected with the output end of the DPFM signal circuit (4). The controller of the utility model has the function of a microcomputer and is matched with the input of a 4 by 4 type keyboard, forming a functions of storing and displaying a plurality of groups of double-tone multi-frequency number groups. The utility model also has the function of editing or modifying the numbers and is particularly suitable for the popularization and application of a 200 card, a 300 card and an IP network telephone.

Description

Multipurpose dual-tone multifrequency autodialer

The utility model relates to a kind of telephone dialing device, particularly a kind of electronic apparatus that has keyboard input, storage, shows and produce DTMF DTMF pulsing sound.

Along with development of science and technology, means of communication is variation constantly, on DTMF dual-tone multifrequency phone, realized multiple value-added service, 200 phonecards of for example applying, 300 phonecards, IP network phonecard etc., their common characteristic are to dial in the service number of accepting on the DTMF double tone multiple frequency telephone set, user's card number, user cipher, operating function sign indicating numbers etc. need the DTMF dual-tone multifrequency number of input to reach about 20, the inconvenience memory, manual input makes the mistake easily, and the user can not be served accurately.Existing DTMF DTMF pulsing device provides effective help for these operations, and they can deposit DTMF dual-tone multifrequency number on request in, and disposable automatic dial-out, has avoided the deficiency of manual dialing.But all there are some defectives in these dialers, be electrically connected as needs and telephone wire, telephone set, need button input number storing by telephone set, cause input error easily owing to no display unit, volume is bigger, be not easy to carry etc., these drawbacks limit the extensive popularization of product.

The purpose of this utility model is the defective that exists at above-mentioned DTMF DTMF pulsing device, design a kind of energy and directly import, revise, show and store many group DTMF dual-tone multifrequency numbers by this switch dish, do not need the electric DTMF number that to transfer to appointed sequence number that connects with telephone set, volume is small and exquisite, be convenient to carry, power consumption is low, the multipurpose dual-tone multifrequency autodialer that can extensively promote.

The utility model is realized above-mentioned target with following design.Multipurpose dual-tone multifrequency autodialer, it comprises dtmf signal circuit and keyboard circuit, it is characterized in that the input of DTMF circuit is connected to many groups dual-tone multifrequency number sets controller of supervisory keyboard input, editor, storage and demonstration; One data storage is connected to the input of described controller; One display circuit is connected to the input of described controller; One phonation circuit is connected to the dtmf signal circuit output end.

Controller can adopt CPU or single-chip microcomputer to realize the keyboard input to many sets of numbers, the storage of number and the control of demonstration, function conversion or the function control of correcting mistakes.The input keyboard that adapts with controller function adopts 4 * 4 buttons, and it is to increase by 4 functional key on original telephone key dish basis, corrects mistakes, turns over operating functions such as screen demonstration, transmission to realize start or shutdown, editor.

The remarkable advantage of such scheme is to adopt advanced Control Technique of Microcomputer, low-power consumption digital circuit technology and paster mounting technique, thereby can realize by the input of machine upper keyboard, storage, show and also can revise many group DTMF dual-tone multifrequency number sets, automatically send any one group of pairing sound of DTMF dual-tone multifrequency number of being deposited in the machine on request, it is low to have power consumption, and function such as be easy to carry.The operator can be provided with the state of dialer by the machine upper keyboard, the input data, the instruction that the controller circuitry keypad is sent here is operated and is handled, and various modes of operation of demonstration or input on the LCD display circuit, the data of storage, when choosing number sets, key in when sending instruction, controller circuitry just takes out corresponding data and controls DTMF touch-tone signal generator and circuit takes place from data storage, send corresponding D TMF sound, transmitter by telephone set is transferred to number, need not to be electrically connected with telephone set; When keying in the typing modify instruction, controller circuitry is just controlled the LCD display circuit and is shown input modification state, and the data that keyboard is sent here are deposited in the corresponding data storage.Therefore, the utility model is compared with existing other dialer and is had obvious improvement and integrality.

Fig. 1 is the utility model electricity functional-block diagram

Fig. 2 is the embodiment circuit diagram

Fig. 3 is the button composition diagram

Fig. 4 is an operational flowchart

The 26S Proteasome Structure and Function of embodiment is described below in conjunction with accompanying drawing.

LCD display circuit (1): link to each other with single-chip microcomputer by connecting line J1, GND and VCC provide working power, and D2 provides video data, and CLK2 provides data clock, and LCD display can show the operating state of dialer, when the data content of preceding article.

Data storage (2): the present embodiment storage appliance is by U ₃(AT93C46) and C ₁₁Constitute, control single chip computer is by CS.CLK, and DI, DO deposit or read U in ₃In data, C ₁₁Power filtering capacitor.

Control circuit (3): be the core of this dialer, present embodiment is by single-chip microcomputer U ₄(PIC16C57) and peripheral circuit form.Be connected to U ₄The crystal G of the 26th and 27 pin ₂And capacitor C ₈, C ₇Form clock oscillation circuit, be connected to U ₄The diode D of the 1st to the 4th pin ₁, resistance R ₁, capacitor C ₁₄And switch S ₂Constitute electrify restoration circuit and finish the switching of low-power consumption mode.When dialer powers on, through R ₁, C ₁₄Give U ₄Low level reset pulse of the 28th pin CLR, single-chip microcomputer U ₄In running order, trigger switch S under the situation of not power down ₂Also can provide reset signal, single-chip microcomputer U ₄Can be distinguished one by one, so that determine in running order or low power sleep mode.U ₄Monitor in real time according to the state of keyboard input circuit down in working order, and act accordingly, finish various controlled function.

Dtmf signal generator (4): by U ₂(PCD3312), be connected to U ₂The crystal oscillator G of the 3.4th pin ₁And capacitor C ₅, C ₆Constitute the reference frequency oscillating circuit, C ₃Be power filtering capacitor, by the 7.8th pin and single-chip microcomputer U ₄21 pin (CLK1) link to each other U with 22 pin (D1) ₂The DTMF touch-tone signal that produces is exported from the 5th pin TONG, delivers to the generation circuit and amplifies.This circuit can produce all dtmf signals.

Phonation circuit (5): by low pressure audio frequency power amplifier integrated circuit U ₁(TDA7050) be connected to U ₁The 2nd pin resistance R ₈.R ₉.R ₁₀, be connected to U ₁The 7th pin capacitor C ₁With loud speaker S ₁Form.The signal of being sent here by the dtmf signal generator is through capacitance C ₂Deliver to R ₇.R ₈.R ₉.R ₁₀The potential-divider network of forming is delivered to U with suitable amplitude ₁The 2nd travel far and wide.C ₄Be balanced electric capacity.Through V ₁Dtmf signal after the amplification is by capacitor C ₁Be coupled to loud speaker S ₁, send the DTMF touch-tone signal.Triode V ₁(9012) resistance R ₆. capacitor C ₁₃C ₁₅Constitute U ₁The direct current supply control circuit, when dialer is in power down mode, U ₄17 pin cut off the power supply of this part circuit by the CTR control line, to reduce the complete machine power consumption.

Keyboard circuit (6): present embodiment is designed to 4 * 4 keyboards, and wherein the 1-3 row are compatible mutually with existing telephone machine dial key and function key, and the 4th row increase by 4 function keys, and the DIAL point among Fig. 2, BACK point, SET point and POWER point are respectively with Fig. 3's

Key, ← key, F key and

Key is corresponding.

Key table shows the transmission key, and ← key table shows delete key, and the F key table shows editor's storage key, Key table shows start or closing key.The  symbol in digital button 1 word left side and the  symbol on 3 word right sides are represented respectively to turn over the screen button downward or upward, when keyboard is in dialing status as pressing  1 key whenever by once reducing by 1 number, as 9,8,7,6 ... 1,0; If press 3  keys, whenever by once increasing by 1 number, as 1,2,3,4 ... 9, when the edit-modify state, then handle as numeral 1 and 3.In normal operation, single-chip microcomputer is monitored keyboard state in real time, carries out keyboard instruction at any time, to realize various functions.Resistance R ₂.R ₃.R ₄.R ₅Be the pull-up resistor of keyboard interface, to improve the stability of port.

Power-supply circuit (7): by two joint AAA alkaline battery and power filtering capacitor C ₉.C ₁₀Etc. formation, for complete machine provides stable working power.

The dynamic duty process of embodiment is described below in conjunction with accompanying

drawing

3,4.

Figure 3 shows that model machine panel of the present utility model, the first half is a LCDs, and Lower Half is a keyboard.Suppose that this model machine is in normal operating condition, had some important telephone numbers in the machine, wherein the 5th is the content of Jitong's IP phonecard, and its Number for access is 17920, and card number is 42653821, and corresponding password is 5047.When starting working, press

The key start, making the sequence number of demonstration by  1 or 3  keys is 05, and first screen then shows 05-17920, and second screen shows 05-42653, and the 3rd screen shows 05-82150, the 4th screen shows 05-47.After checking that number is errorless, receiver is aimed at the acoustical generator S of this machine ₁, press the transmission key, promptly finish dial-up operation.Press

Key promptly shuts down, if the phone stored be not liquid crystal display when preceding article information, can be with turning on  key or the  key or turn over down, the telephone number that searching has deposited in.More than be first kind of operation sequence that need not Enter Number.

If the phone of hanging is the new digit of not storing in advance, after the start, directly promptly enter editing mode, as import digital as 7314368 by the F key, it is errorless to see that display screen is checked input, presses the F key and deposits memory in, presses the transmission key and sends 7314368 numbers.

Revise wrong number, if when dialing, just find by error code, as 7314368 proportionately 77 * * * * *, then directly 7 deletions can be continued input by 3 again by ← key.If the input be 300 the card numbers it comprise card number, account number and password have 28 figure place sign indicating numbers, the so most sign indicating numbers of each input, can push the wrong unavoidably, and mistake repeatedly, for example 898600157754411369 is the account number of one 300 card, during input mistake proportionately 89860157754417369 when revising earlier on the 1st screen 89860157, by the F key again ← move to 89860 ← 15 again by digital 0, promptly be revised as 89860015 and turn over to the 2nd screen, 77544173 by the F key again ← move to 77544173 with 7 deletions, again by digital 1, promptly be revised as 77544113, turn over to 69 confirmation of the 3rd screen, deposit in the memory, send to receiver by sending key again by the F key, so all deposit in these all numbers of 300 card in this dialer, when reusing this 300 card,, needn't go again by 28 figure place sign indicating numbers as long as undertaken by described first operation sequence of Fig. 4, and produce the worry of pressing error code, both saved time and also reduced expenses.

Present embodiment is portable cassette, can put in the pocket to be easy to carry.The utility model also can be loaded on the ordinary telephone set, replaces common dialer, is particularly suitable for promoting the service of 200 cards, 300 cards, IP network phonecard.

Claims

1, multipurpose dual-tone multifrequency autodialer, it comprises dtmf signal circuit (4) and keyboard circuit (6), it is characterized in that many groups dual-tone multifrequency number sets controller (3) that DTMF circuit (4) input is connected to supervisory keyboard input, editor, storage and shows; One data storage (2) is connected to the input of described controller (3); One display circuit (1) is connected to the input of described controller (3); One phonation circuit (5) is connected to the output of dtmf signal circuit (4).

2, multipurpose dual-tone multifrequency autodialer as claimed in claim 1 is characterized in that controller (3) comprises single-chip microcomputer U ₄, be connected to U ₄The 26th and 27 pin are by crystal G ₂, capacitor C ₇, C ₈Form the clock oscillation road, be connected to U ₄The the 1st to 4 pin is by diode D ₁Capacitor C ₁₂C ₁₄Resistance R ₁And switch S ₂The low-power consumption electrify restoration circuit of forming.

3, multipurpose dual-tone multifrequency autodialer as claimed in claim 1 is characterized in that the dtmf signal circuit comprises integrated circuit U ₂, be connected to U ₂3rd, the capacitor C of 4 pin ₅, C ₆Crystal G ₁Basic journey frequency circuit; U ₂The 8th, 7 pin and U ₄The 21st, 22 pin join.

4, multipurpose dual-tone multifrequency autodialer as claimed in claim 1 is characterized in that phonation circuit is by U ₁, be connected to U ₁The 2nd pin resistance R ₈, R ₉, R ₁₀, be connected to U ₁The capacitor C of the 7th pin ₁With loud speaker S ₁Form V ₁Pass through C ₂With U ₂The 5th pin link to each other.

5, multipurpose dual-tone multifrequency autodialer as claimed in claim 4 is characterized in that U ₁The direct current supply control circuit by triode V ₁Capacitor C ₁₃, C ₁₅And resistance R ₆Form, by U ₄17 pin output control signal cut off the part power supply of this circuit.

6, multipurpose dual-tone multifrequency autodialer as claimed in claim 1 is characterized in that keyboard circuit is made up of 4 * 4 ammonium keys, wherein resistance R ₂, R ₃, R ₄, R ₅Pull-up resistor for keyboard interface.