CN2175499Y

CN2175499Y - Control type telephone set

Info

Publication number: CN2175499Y
Application number: CN 93237201
Authority: CN
Inventors: 马鹏飞
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-07-02
Filing date: 1993-07-02
Publication date: 1994-08-24
Anticipated expiration: 2003-07-02

Abstract

The utility model relates to the telephone field of the post telephone and telegraph and the communication. The telephone set is additionally provided with the pulse interrupter of a hook switch, the controller of a memory function, the lock of arbitrarily numerical code on the technical basis of the existing telephone provided with a lock; thus telephonic illegal users who make a long distance call through striking the hook switch, or making use of memory buttons, etc., can be more thoroughly stopped, which is favorable to reasonably use phones. The utility model has simple circuit structure and low cost, has a few changes to the basic circuit of the original telephone set, has no influence on the performance of the original telephone set, and is suitable for the bulk production of telephone set plants and modification to the telephone sets of the existing users.

Description

Control type telephone set

The utility model belongs to the post and telecommunications field, particularly the technology contents of telephone set.

In order to strengthen that unit is made telephonic management, a kind of technology of existing telephone set is that the housing at telephone set is that " lock " is housed, and its objective is and pins No. zero key, is stranded private and batters toll telephone to control some people.But situation from present discovery, this way is inoperative to some unconscious persons that know the phone function, they still can be by impacting the hook switch of telephone set, send the pulse that to be approved by post and telecommunications office and connect toll telephone, perhaps start No. zero key by arbitrary item sign indicating number earlier, more required trunk code is stored up into memory and also can connect long-distance by memory function.In addition, because existing telephone set is more uncontrollable to the figure key except that " zero ", so want the private of toll's conversation and city unit thereof also just to be difficult to management to pulling out " 113 " " 173 ".

The utility model proposes the control type telephone set, have more controlled function, can prevent the disabled user by impacting hook switch more up hill and dale, or utilize memory button etc. to make a long-distance call, reach the purpose of the reasonable operational support user of phone legitimate rights and interests.

Function of the present utility model is by increasing hook switch pulse block device on the basis of existing telephone set network structure with lock.Technical schemes such as memory function controller and any digital lock are achieved.

Now provide accompanying drawing earlier:

Accompanying drawing 1 is the electrical schematic diagram of hook switch pulse block device of the present utility model

Accompanying drawing 2 is the electrical schematic diagram that memory function controller of the present utility model and any digital lock combine

Among the figure: T ₁-T ₂Be controllable silicon, T ₃-T ₈Be triode, R ₁-R ₂Be resistance, C ₁-C ₄Be electric capacity, K is switch (lock of existing telephone set).

(1) the utility model is by controllable silicon T₁, capacitor C₁, resistance R₁And K switch forms hook switch pulse block device. Resistance R wherein₁Termination controllable silicon positive pole, the other end and a capacitor C₁Positive pole connect simultaneously the silicon controlled control utmost point, capacitor C₁Negative pole and silicon controlled negative pole join, switch is connected on capacitor C₁Positive and negative electrode between. This block device is installed in the gap (seeing in Fig. 1, the frame of broken lines that frame is outer for connecing original call machine circuit gap) that the pulse of original call hook switch enters bridge rectifier.

(2) the utility model is by triode T₃(NPN type), T₄(positive-negative-positive) and resistance R₂, capacitor C₂And K switch forms memory function controller, wherein capacitor C₂Positive pole meet simultaneously T₄Colelctor electrode and T₃Base stage, resistance R₂A termination T₄Base stage, connect simultaneously existing telephone set 9114 integrated package trigger electrodes, another termination T₅Base stage, T₄Emission keep 2.5V voltage (seeing the left frame of broken lines of Fig. 2).

(3) the utility model is by controllable silicon T ₂, capacitor C ₃, C ₄, resistance R ₃Triode T ₅(positive-negative-positive), T ₆, T ₇, T ₈(being the NPN type) forms any key lock, wherein T ₂Positive pole meet T ₅Base stage, T ₂The control utmost point meet T ₅Collector electrode and capacitor C ₃Positive pole, resistance R ₃One termination T ₅Collector electrode and capacitor C ₃Positive pole, the other end meet T simultaneously ₆, T ₇, T ₈Base stage, capacitor C ₄Positive pole, T in addition ₆, T ₇, T ₈Emitter and collector be connected on desire again respectively and lock digital gap (seeing the right frame of broken lines of Fig. 2).

As seen from Figure 2, the T of the T3 of memory function operating key of the present utility model and any digital lock ₆, T ₇, T ₈Collector electrode, the gap that emitter is connected to memory button and figure key respectively.

Existing telephone set by proper and convenient the coming into operation of technical characterictic attaching of the present utility model (need not the basic circuit of telephone set be changed) as: have the people to impact trunk code and corresponding telephone number from hook switch, microphone is mentioned, AB short circuit (see figure 1), AC disconnect controllable silicon T ₁Both end voltage rises rapidly, owing to voltage effect, electric current pass through resistance R ₁Controllable silicon conducting again, since take be first cut-out, the back conducting key measure so blocked the hook switch pulse effectively.And for example, existing telephone set with lock, under situation about locking, also can use the memory function key to get toll telephone smoothly, exemplify: direct dialing Nanjing, can hang on by memory button, earlier on note 524 to 1 keyboards, remember again on 025 to 2 keyboard, put down microphone, by No. 2 keyboards of memory button, dial the Nanjing number again and get final product, memory function controller of the present utility model (seeing Fig. 2 left side), K switch (being lock) disconnects, transistor turns in this circuit, and memory button is obstructed, then play control action, just can not utilize memory button to make a long-distance call again.Any digital lock of the present utility model, be not subjected to the restriction (seeing Fig. 2 right side) of audio frequency and pulse, T ₆, T ₇, T ₈Connect the cut-off point of controlled any one number of desire, start with 3 words as local telephone, then the may command number 3, and the phone of so every 3 words beginning has not just been shown, and 3 keys come second later on according to not missing.

To sum up, the utility model circuit structure is simple, does not influence any performance of original call machine, cost is low, is suitable for telephone set factory and produces in batches, also is suitable for the repacking to existing all telephone sets of user, can strengthen management that phone is used conscientiously, will be subjected to the user and welcome.

Claims

1, a kind of control type telephone set is characterized in that it also comprises:

A: by controllable silicon T ₁, capacitor C ₁, resistance R ₁And the hook switch pulse block device of K switch composition, wherein resistance R ₁Termination controllable silicon positive pole, the other end and a capacitor C ₁Positive pole connect the silicon controlled control utmost point, capacitor C simultaneously ₁Negative pole connect the silicon controlled negative pole, switch is connected on capacitor C ₁Between the both positive and negative polarity, and this pulse block device is secured to the gap that the pulse of original call machine hook switch enters bridge rectifier;

B, by triode T ₃(NPN type), T ₄(positive-negative-positive) and resistance R ₂, capacitor C ₃, the memory function controller formed of K switch, wherein capacitor C ₂Positive pole meet T simultaneously ₄Collector electrode and T ₃Base stage, resistance R ₂A termination T ₄Base stage, connect existing telephone set 9114 integrated package trigger electrodes simultaneously, another termination T ₅Base stage, T ₄Emitter keep magnitude of voltage 2.5V.

C, by controllable silicon T ₂, capacitor C ₃, C ₄, resistance R ₃With triode T ₅(positive-negative-positive), T ₆, T ₇, T ₈Any key lock that (being the NPN type) formed, wherein controllable silicon T ₂Positive pole meet T ₅Base stage, T ₂The control utmost point meets T ₅Collector electrode and capacitor C ₃Positive pole, resistance R ₃One termination T ₅Collector electrode and capacitor C ₃Positive pole, the other end meets T simultaneously ₆, T ₇, T ₈Base stage, and each transistorized emission and collector electrode are connected the gap of the number of desire locking.

2, control type telephone set according to claim 1 is characterized in that: the T of the operating key of memory function ₃With any digital lock T ₆, T ₇, T ₈Collector electrode, emitter is connected to the gap of memory button and figure key respectively.