CN2165584Y - Voice circuit telephone - Google Patents

Abstract

The utility model discloses a voice ring-back telephone, which is characterized in that a voice circuit is added to the existing telephones. The voice circuit is composed of a control circuit, a voice generating circuit and a simulation ringing circuit. The control circuit is serially connected with a telephone line, and the voice generating circuit is connected in parallel with the telephone line. The voice generating circuit is composed of a memory and an A/D and D/A switching circuit and a telephone line interface circuit. When calling subscribers wait during calling, different information like advertisement, word leaving, etc. can be provided for the calling subscribers. Therefore, the calling waiting time is sufficiently used, and the utilization ratio of a telephone network is increased. The utility model has the advantages of simple structure and convenient fabrication and is suitable for various telephones.

Description

Voice circuit telephone

The utility model relates to a kind of phone, particularly a kind of dial etc. to bide one's time the other side the Voice circuit telephone of voice messaging can be provided.

Telephone set generally is made up of pulse dialing circuit, speaking circuit, ringing circuit etc. in the prior art.Be provided with a hook switch (switches set) in the junction of above-mentioned three partial circuits and telephone wire, when hook switch is depressed, when promptly the phone head is on casing, ringing circuit and the switch closure of talking about line, and dialing and speaking circuit and words line disconnect, phone is in called state.The arriving of bell signal excites the ring loop to produce ringing tone, advise called subscriber has had phone, what at this moment the called subscriber is heard is ringing tone, and concerning the calling subscriber, what hear is the long of " toot-toot-toot-", when the called subscriber picks up the phone head, then hook switch (switches set) lifts, ringing circuit disconnects with the words line, dial-up circuit and speaking circuit and words line closure, and both sides enter talking state.The problem that existing phone exists is: during caller, what the calling subscriber heard is the long of " toot-toot-toot-", and this ringing tone is not with any information, and a period of time before conversation is underutilized.

It is a kind of during ring that the purpose of this utility model is to provide, and can provide voice messaging to improve the Voice circuit telephone of telephone network utilance to the calling subscriber.

The purpose of this utility model is achieved in that a kind of Voice circuit telephone, comprise casing, the words line, the words line interface, the ring loop, the dialing loop, talking path, it is characterized in that, the ring loop, the dialing loop, talking path is parallel-connected to the output of sound circuit respectively, original position at the inlet of talking about line, also be connected in series with the sound circuit that can send voice messaging, this sound circuit is by the control circuit of control speech generating circuit operating state, the speech generating circuit and the simulation ringing circuit that store concurrent sending voice information constitute, control circuit is connected in series on the words line, speech generating circuit is connected in parallel on the words line, and speech generating circuit is by memory and A/D, D/A change-over circuit and interface circuit constitute.

When phone was in idle condition, control circuit was in to carry and ends state, and speech generating circuit and simulation ringing circuit are not worked like this.When calling subscriber dialing is called, when on the words line bell signal being arranged, this bell signal makes the control circuit state reverse, be in conducting state, like this, speech generating circuit and simulation ringing circuit are started working, the simulation ringing circuit produces the simulation ringing tone, and advise called subscriber has had phone, and speech generating circuit produces voice signal and enters telephone wire by the words line interface, thereby import calling subscriber's phone again into, reach the purpose of transmission information, wherein the memory of speech generating circuit is to store vocoded information, passes through A/D, D/A converter, when the A/D state, can deposit voice messaging in memory; When the D/A state, can take out the voice in the memory, send into the words line.When the called subscriber picks up phone, the counter-rotating of control circuit state, speech generating circuit and simulation ringing circuit quit work, and the called subscriber just can converse with the calling subscriber.

The utility model compared with prior art, its remarkable special advantage is: 1, improved the utilization ratio of telephone network under the prerequisite that does not change the existing telephone network, dialled when waiting for the calling subscriber, can offer various useful informations such as calling subscriber's advertisement, message; 2, the voice messaging that stores in the phone can be adjusted at any time according to user's needs, and adaptability is preferably arranged; 3, manufacturing and easy for installation can cooperate with existing phone is organic under the situation that does not change existing phone, also can make an integral body with phone.

Fig. 1 is the overall structure schematic diagram of Voice circuit telephone of the present utility model.

Fig. 2 is the sound circuit schematic diagram of Voice circuit telephone of the present utility model.

Below in conjunction with accompanying drawing embodiments of the invention are described.

Embodiment.In conjunction with Fig. 1, Fig. 2, Voice circuit telephone of the present utility model comprises casing (7), words line (1,2), words line interface (6), ring loop (3), dialing loop (4), talking path (5), above-mentioned three loops are parallel-connected to words line (1 respectively, 2) on, on the words line between phone interface (6) and ring loop (3), the sound circuit (8) of connecting, sound circuit (8) is by the control circuit (9) of control speech generating circuit operating state, the speech generating circuit (10) and the simulation ringing circuit (11) that store concurrent sending voice information constitute.The simulation ringing circuit is under the idle situation of ringing circuit, to produce ringing tone in phone, informs that the called subscriber has phone to squeeze into.It mainly is made of Music Clip, loud speaker etc., and its input is connected with control circuit (9).Speech generating circuit (10) is connected in parallel on the words lines (1,2), and it is made up of memory (1,2), A/D change-over circuit (13), words line interfaces (14).Memory (12) is made up of two RAM62256; A/D, D/A mainly are made up of YYH402 chip and relevant preparation element; The bridge circuit that words line interface circuit (14) are made up of 4 diodes, control circuit (9) is series on the words lines (1,2), it is made of status latch (9a) and status signal generator (9b), status latch (9a) mainly comprises the electric bridge that 324 operational amplifiers and triode Q1 and resistance R 1-R4 constitute, and its function is the conducting state of Control current; Status signal generator (9b) produces status signal, the state of state of a control latch, and it is made up of a photocoupler and a relay.With regard to present embodiment, its course of work is: when phone was in idle condition, control circuit (9) was in to carry and ends state, and speech generating circuit (10) and simulation ringing circuit (11) are not worked like this.When calling subscriber dialing is called, when on the words line bell signal being arranged, this bell signal makes control circuit (9) state reverse, be in conducting state, speech generating circuit (10) and simulation ringing circuit (11) are started working like this, simulation ringing circuit (11) produces the simulation ringing tone, the advise called subscriber phone has come, speech generating circuit (10) produces voice signal and enters telephone wire by words line interface circuit, thereby the phone that imports the calling subscriber again into reaches the purpose of transmission information, wherein speech generating circuit (10) operation principle is, memory (12) storage vocoded information is passed through A/D, D/A change-over circuit (13) can deposit voice messaging in memory (12) when the A/D state, when the D/A state, can take out the breath of the voice in the memory (12) and send into the words line.When the called subscriber picks up phone, the counter-rotating of control circuit (9) state, speech generating circuit (10) and simulation ringing circuit quit work, and the called subscriber just can converse with the calling subscriber.

Claims (3)

1, a kind of Voice circuit telephone, comprise casing (7), words line (1,2), words line interface (6), ring loop (3), dialing loop (4), talking path (5), it is characterized in that: ring loop (3), dialing loop (4), talking path (5) are parallel-connected to the output of sound circuit (8) respectively, original position at the inlet of talking about lines (1,2) also is connected in series with the sound circuit (8) that can send voice messaging.

2, Voice circuit telephone according to claim 1, it is characterized in that sound circuit (8) is made of the control circuit (9) of control speech generating circuit operating state, the speech generating circuit (10) and the simulation ringing circuit (11) of the concurrent sending voice information of storage, control circuit (9) is connected in series on the words lines (1,2), and speech generating circuit (10) is parallel on the words lines (1,2).

3, Voice circuit telephone according to claim 1 and 2 is characterized in that speech generating circuit (10) is made of memory (12), A/D, D/A change-over circuit (13) and words line interface circuit (14).

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