CN2847724Y

CN2847724Y - Telephone dialer

Info

Publication number: CN2847724Y
Application number: CN 200520144457
Authority: CN
Inventors: 高泉澄
Original assignee: GAODA ELECTRONIC CO
Current assignee: GAODA ELECTRONIC CO
Priority date: 2005-12-16
Filing date: 2005-12-16
Publication date: 2006-12-13
Anticipated expiration: 2015-12-16

Abstract

The utility model relates to a telephone dialer which is provided with a box body and keys. The telephone dialer comprises a data interface used for connecting a number programmer, a storage unit (IC2), a key scanning unit, a controller (IC1), a power supply unit, a dialing circuit and an interface used for connecting a telephone and the outer line of the telephone, wherein the keys are embedded in the box body and the surfaces of the keys are exposed. The controller is connected with the dialing circuit and the key scanning unit, and the dialing circuit is connected with the interface through a bridge rectifier circuit. The telephone dialer of the utility model can input telephone numbers through the number programmer, and can query and modify the telephone numbers. The telephone dialer has the advantages of simple structure and convenient operation, and is especially suitable for being operated and used for children and old people.

Description

Phone dialer

Technical field

The utility model relates to the electronic communication field, is specifically related to telephone dialing device.

Background technology

Existing telephone set can be by number storing in telephone set in advance, during use by transfering to the corresponding phone number of being stored automatically by function key.The user is when using this telephone set, because the stored routine difference of each factory settings, for how telephone number correctly being stored comparatively trouble.In addition, phone dialer in the market has multiple, as a kind of universal phone dialer, allows user oneself input one group or a few sets of numbers, button dial-out as required during use, and it operates inconvenience, and price is higher.For this reason, the purpose of this utility model is that at the deficiencies in the prior art, it is simple to design a kind of structure and circuit, connects reliably phone dialer easy and simple to handle.

The utility model content

The utility model provides a kind of phone dialer, and this dialer is storing phone number in advance, presses its button and just can finish dialing.The phone dialer that is provided, be provided with box body, button, comprise: be used to connect data-interface, memory cell IC2, key scan unit, controller IC 1, power supply unit, the dial-up circuit of number programmable device and the line interface that is used to connect telephone set and outside line; Wherein said button is nested in this box body and expose on the surface, and described controller is connected with dial-up circuit and key scan unit, and dial-up circuit passes through by D1, D2, and D3, the bridge rectifier that D4 constitutes is connected with interface.

Described key scan unit comprises diode and is interconnected to constitute the plurality of keys switch of matrix.On the described box body one or more buttons can be set, each button corresponds respectively to a key switch, and promptly each button is corresponding to a telephone number in the memory.

Described dial-up circuit comprises triode, be connected the resistance R 5 of transistor emitter and be connected first capacitor C 1 and the resistance R 6 of the connection parallel with one another of transistor base.

Described line interface has the two butt joint line ends that connect telephone set and outside line respectively, and wherein connecting between the pair of terminals of telephone set has a resistance R 1; Be connected with by D1 between the pair of terminals of connection outside line, D2, D3, the bridge rectifier that D4 constitutes, and also this rectification circuit is connected with dial-up circuit.

Phone dialer of the present utility model is independent of outside the telephone set, is serially connected between telephone set and the outside line by telephone wire.Can carry out in advance number storing and can make amendment by the number programmable device depositing number.It is simple in structure, easy to operate, especially makes things convenient for child, old man's operation.

Description of drawings

Fig. 1 is the formation block diagram according to phone dialer of the present utility model;

Fig. 2 is the circuit diagram according to the dialer of the utility model specific embodiment;

Fig. 3 uses schematic diagram according to the connection of phone dialer of the present utility model.

Embodiment

Phone dialer is provided with box body, button, and described button is nested in this box body and expose on the surface, comprises that the circuit board of memory cell IC2, key scan unit, controller IC 1, power supply unit, dial-up circuit is installed in the box body.The interface that is used to connect the data-interface of number programmable device and is used to connect telephone set and outside line is located at the sidepiece of box body.

Fig. 1 is the formation block diagram according to phone dialer of the present utility model.As shown in Figure 1, this phone dialer comprises: be used to connect data-interface, memory cell IC2, key scan unit, controller IC 1, power supply unit, the dial-up circuit of number programmable device and the line interface that is used to connect telephone set and outside line.

Fig. 2 is the circuit diagram according to the phone dialer of the utility model specific embodiment.As shown in Figure 2, the key scan unit comprises diode D6 and interconnective two key switch M1, M2, and is connected with controller IC 1.

Power supply circuits comprise: resistance R 4 diode D5 and electric capacity E1 and voltage-stabiliser tube ZD1 provide power supply by voltage-stabiliser tube ZD1 for dial-up circuit.

Described dial-up circuit comprises triode Q1, be connected the resistance R 5 between triode Q1 emitter and the ground and be connected first capacitor C 1 and the resistance R 6 that is connected parallel with one another of triode Q1 base stage.Described controller IC 1 is connected with dial-up circuit and key scan unit, and dial-up circuit passes through one by D1, D2, D3, the terminals 6 that bridge rectifier that D4 constitutes and resistance R 2 are connected to line interface LINE.

Line interface LINE has the two butt joint line ends that connect telephone set and outside line respectively, and wherein connecting between the pair of

terminals

2,3 of telephone set has a resistance R 1; Connect and to be connected with resistance between the pair of

terminals

6,7 of outside line and by D1, D2, D3, the bridge rectifier that D4 constitutes, and also this rectification circuit is connected with dial-up circuit.

The auxiliary circuit that is made of crystal oscillator X1, resistance R 9, R10 and capacitor C 2, C3, C4, C5, C6, E2 is to guarantee controller IC 1 operate as normal.

Memory cell IC2 is connected with the data-interface DATA that is used to be connected the number programmable device, the number programmable device has the telephone number input function,, and can make amendment to the number in the memory as required with telephone number in advance in the write memory by this interface.When needs dial, by pushing button the telephone number in the write memory is in advance sent, finish dial feature.

Fig. 3 uses schematic diagram according to the connection of phone dialer of the present utility model.As shown in Figure 3, this phone dialer is serially connected between telephone set and the outside line by telephone wire, can as required this phone dialer be installed in required any position, as on the head of a bed, the wall or be fixed on the furniture and appliances, fully conveniently uses operation.

The use that a plurality of these phone dialers can be serially connected, each phone dialer is provided with required telephone number respectively.

In addition, the key scan unit of this phone dialer comprises diode and is interconnected to constitute the plurality of keys switch (only showing two key switch M1, M2 among Fig. 2) of matrix.On the described box body one or more buttons can be set, each button corresponds respectively to a key switch, promptly corresponding to a telephone number in the memory.When pressing certain button of certain phone dialer, transfer to regard to the pairing telephone number in the memory.

Phone dialer provided by the utility model is a kind of singly-bound or multikey dialer, uses with the telephone set serial or parallel connection.Its inside has memory cell can deposit one or more groups telephone number, as alarm call (fire alarm, robber and police etc.), long-distance number, hot line and ordinary phone number.These numbers can be provided with, inquire about and revise by additional programmable device.Mention telephone set during use, press dial key and just corresponding number can be transferred to.

Phone dialer of the present utility model is simple in structure, the user can oneself be provided with, inquire about and revise by the phone programmable device, and is easy to operate, has practicality, especially makes things convenient for child, old man's operation.

Claims

1, a kind of phone dialer, it is characterized in that, be provided with box body, button, comprise: be used to connect data-interface, memory cell (IC2), key scan unit, controller (IC1), power supply unit, the dial-up circuit of number programmable device and the line interface that is used to connect telephone set and outside line; Wherein said button is nested in this box body and expose on the surface, and described controller is connected with dial-up circuit and key scan unit, and dial-up circuit is connected with described line interface by bridge rectifier.

2, phone dialer as claimed in claim 1 is characterized in that, described key scan unit comprises diode and is interconnected to constitute the plurality of keys switch of matrix.

3, phone dialer as claimed in claim 1, it is characterized in that described dial-up circuit comprises triode, be connected the 5th resistance (R5) of transistor emitter and be connected first electric capacity (C1) and the 6th resistance (R6) of the connection parallel with one another of transistor base.

4, phone dialer as claimed in claim 1 is characterized in that, described line interface has the two butt joint line ends that connect telephone set and outside line respectively, and wherein connecting between the pair of terminals of telephone set has a resistance (R1); Connect be connected with between the pair of terminals of outside line a bridge rectifier (D1, D2, D3, D4), and this rectification circuit is connected with dial-up circuit.

5, phone dialer as claimed in claim 2 is characterized in that, on the described box body one or more buttons can be set, and each button corresponds respectively to a key switch.