CN2655380Y - Display terminal for speech leaving message prompting system - Google Patents

Abstract

The utility model discloses a displaying terminal of a sound message indicating system, comprising a net interface mode, a decoding mode, a control mode and a displaying mode, wherein the net interface mode is connected with a telephone net to receive FSK signal from the telephone net, the decoding mode is connected with the net interface mode to analyze the FSK signal from the net interface mode, the control mode is respectively connected with the net interface mode, the decoding mode and the displaying mode. The using of the utility model is not necessary to make any change to an exchanger on the No. 7 signaling net. Thereby the utility model has small affect on the prior net, the equipment and adjustment are comparatively convenient, and the composite cost is lower.

Description

The display terminal of tone information prompt system

Technical field

The utility model relates to a kind of voice communication apparatus, specifically, is the display terminal that a kind of tone information is pointed out (MWI) system.

Background technology

At present, in the voice mail business (VMS) of general telephone network, its message waiting status of notice voice mail user easily and effectively (Message Waiting Indicator, i.e. MWI): newer message (including urgent message) being arranged or do not have newer message, is very important.This is directly connected to the availability of voice mail business.Some voice-mail system such as the voice-mail system (EP WO 921 4 4330) at mobile network, is notified the user by the mode that sms center is sent short messages to user mobile phone.The dialing tone of sending out special by subscriber exchange for the user such as some voice-mail system again.But this dual mode is all very high to the requirement of network (switch).This has just limited the applicability of these method and apparatus.

Summary of the invention

The purpose of this utility model provides a kind of display terminal of tone information prompt system.It can be used in the tone information prompt system of No.7 signaling network.

For achieving the above object, the utility model is taked following scheme: the utility model is made up of Network Interface Module, decoder module, control module and display module.Network Interface Module links to each other with telephone network, receives frequency shift keying (Frequency Shift Keying, the i.e. FSK) signal from telephone network.Decoder module links to each other with Network Interface Module, and the fsk signal of automatic network interface module is resolved in the future.Control module links to each other with Network Interface Module, decoder module and display module respectively.If FSK information display of calling is MWI (On), control module is cut off circuit with the instruction decoding module, and directs display module places " bright " state with the display lamp of display module simultaneously.If FSK information display of calling is MWI (Off), control module is cut off circuit with the instruction decoding module, and directs display module places " going out " state with the display lamp of display module simultaneously.If FSK information display of calling and MWI are irrelevant, then control module is not done any processing.

Network Interface Module in the utility model can also link to each other with subscriber phone.

Network Interface Module in the utility model can also link to each other with the conversation module.

Control module in the utility model can also link to each other with the caller identification screen.

Please refer to Fig. 1, MWI dispensing device 1 has newer message in learning the user's voice mailbox after, have the initial address message (IAM) of rear subscriber number parameter to 2 transmissions one of LSTP switch; IAM delivers to subscriber exchange 3 by LSTP switch 2; Subscriber exchange 3 is checked information of terminal user, learns it is display of calling identification user, so send caller information to MWI display terminal 4 with the FSK form.After MWI display terminal 4 received caller information, according to the information content, the MWI display lamp was set to " bright ", states such as " going out ".

The utility model has the advantages that: use the utility model, do not need the switch on the No.7 signaling network is done any change.Therefore, little to existing web influence, to install and debug more convenient, integrated cost is lower.

Description of drawings

Fig. 1 is the user mode figure of the utility model in the tone information prompt system

Fig. 2 is a principle schematic of the present utility model

Fig. 3 is a processing flow chart of the present utility model

Fig. 4 is circuit theory diagrams of the present utility model

Embodiment

As shown in Figure 2, the utility model is made up of Network Interface Module 5, decoder module 6, control module 7 and display module 8.Network Interface Module 5 links to each other with telephone network, receives the fsk signal from telephone network.Decoder module 6 links to each other with Network Interface Module 5, and the fsk signal of automatic network interface module 5 is resolved in the future.Control module 7 links to each other with Network Interface Module 5, decoder module 6 and display module 8 respectively.

Network Interface Module 5 can also link to each other with subscriber phone 11, and Network Interface Module 5 can also link to each other with conversation module 10.Control module 7 can also be shielded 9 with caller identification and be linked to each other.

As shown in Figure 3, if FSK information display of calling is MWI (On), control module 7 will be cut off the incoming call circuit, and directs display module 8 places " bright " state with the display lamp of display module simultaneously.If FSK information display of calling is MWI (Off), control module 7 will be cut off the incoming call circuit, and directs display module 8 places " going out " state with the display lamp of display module simultaneously.If FSK information display of calling and MWI are irrelevant, then control module 7 is not done any processing.

As shown in Figure 4, this circuit is made up of Network Interface Module U1, decoder module U2, control module U3 and display module U4.J1 port and the telephone network of U1 link, and receive fsk signal; The J2 port is the power interface of this circuit; The J3 port is an output terminal, connects telephone set; The reception that act as of relay K 1 is cut off or recovery output port (J3) from the instruction of control module, with the break-make of control telephone set.The input port of decoder module U2 links to each other with J1, and FSK is decoded as output (double mode three-way data-interface) after the serial data, delivers to control module U3.The serial data that U3 is sent here U2 by single chip computer AT 89C2051 is put in order and is discerned, and filters out useful data (telephone number).The main circuit of display module U4 is a light emitting diode, and it is subjected to the control of U3; The single chip computer AT 89C2051 of U3 controls the state that light emitting diode is in " bright " and " going out " according to the telephone number that receives.

Input signal is inserted by the J1 of U1, enters input pin (PIN2) INLINE1 of the MT88E39 of decoder module U2 behind the resistance R IN1 through coupling capacitance C9 (100nF) and 430k, and the effect of C9 is to be used to provide FSK sinusoidal modulation signal passage; As shown in Figure 4, PIN2 is the input end of MT88E39 input amplifier, connect 100k variable resistor RF1 between PIN3 and the PIN2, its effect is that gain is adjusted to input amplifier, the resistance of RF1 is most important to the work of entire circuit, cause that too greatly easily misconnection receives, the too little signal that then do not receive, generally at 30k between the 50k; The low pattern that consumes altogether of forbidding.

MT88E39 decodes to FSK, by DATA, and DCLK, DR pin output serial data; The crystal oscillator frequency of MT88E39 is 3.58M, and the serial clock frequency of this moment is 1200bps, and promptly the output frequency of DCLK end (PIN9) is 1.2k, and data are by DATA end (PIN10) serial output; Ready for data signal DR and carrier signal CD are out to leak output, need pull-up resistor R3, R4, and resistance is 100k.The demoder MT88E39 of U2 output inserts the single chip computer AT 89C2051 of U3, method of attachment as shown in Figure 4: form electrify restoration circuit by C3 (22uF) and R1 (1k), crystal oscillator is 12MH; The serial data that single-chip microcomputer Rcv decoder MT88E39 sends, caller ID is discerned, if caller ID MVI (on), be that low level makes the light emitting diode D1 of light emitting module U4 luminous then by the PIN19 that AT89C2051 is set, and PIN18 is set is low level, relay/analog switch is turn-offed, hang up the telephone; If caller ID MVI (off), then to close D1 and hang up the telephone, other incoming calls are not then operated D1 and relay/analog switch.

Control module U3 contains single chip computer AT 89C2051 among Fig. 4, and decoder module U2 contains demoder MT88E39.

Claims (4)

1. the display terminal of a tone information prompt system is characterized in that: be made up of Network Interface Module, decoder module, control module and display module; The Network Interface Module that can receive frequency shift keyed signals links to each other with telephone network, and decoder module links to each other with Network Interface Module, and control module links to each other with Network Interface Module, decoder module and display module respectively.

2. the display terminal of tone information prompt system according to claim 1 is characterized in that: described Network Interface Module can also link to each other with subscriber phone.

3. the display terminal of tone information prompt system according to claim 1 is characterized in that: described control module contains single chip computer AT 89C2051.

4. the display terminal of tone information prompt system according to claim 1 is characterized in that: described decoder module contains demoder MT88E39.

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