CN1099168C - Sound controlled wireless talkback set without language difference - Google Patents

Abstract

The present invention relates to a sound control wireless interphone without language difference, particularly to a wireless interphone capable of ensuring the integrity of conversation content, which is mainly composed of a control circuit, a sound temporary storage circuit, a sound transmitting judgment circuit, a D/A circuit, an A/D circuit, a transmitting and receiving circuit matched with the existing interphone, etc. The present invention provides a sound control wireless interphone without language difference, which has the advantages of simplicity and convenience.

Description

A kind of sound controlled wireless intercom that does not have the language difference

The present invention relates to a kind of sound controlled wireless intercom that does not have the language difference, mainly provide wireless interspeaker one pronunciation device, when use is of the present invention,, be convenient for people to use with the vice activation radiating circuit.

Flourishing communication science and technology makes people be enjoyed high-quality and communication modes easily, wherein the low-power wireless intercom is another the popular communication commodity of mobile phone that continue, no matter in the emporium, all visible its uses in place such as building site, tourism, also because the scope of application is extensive, convenient, so accepted by common people.See also shown in Figure 1, it is existing intercom circuit box sketch, mainly by a shared antenna 18, one filter circuit 17, one receiving and transmitting signal switched circuit 16, one frequency down circuit 15, two frequency mixers 12,14, one band-pass circuit 13, one demodulator circuit 11, one enhancing frequency circuit 21, one modulation circuit 20, one low pass circuit 23, one crystal oscillation circuit 19, one microphone control circuit 24, two amplifiers 25,34, one microphone 26, one loud speaker (earphone) 33, one loud speaker control circuit 32, one identification code produces circuit 31, one noise filtering circuit 22, one sound filter circuit 27, one microprocessor 28, one radiating circuit power supply control 30, one receiving circuit power supply is controlled the transmission circuit that 29 circuit such as grade are formed, and has some disappearances on it uses:

When 1, the user of existing intercom desires to give orders or instructions acoustic, after needing first press-to-talk key, intercom just can transmit, but because the capacity effect of emission and associated circuit components thereof etc., need to postpone a period of time, could reach steady-working state fully, if the user does not promptly give orders or instructions before the complete stability operating state at circuit, then the words said of front may allow receiving terminal is complete to receive (i.e. language difference situation), therefore often cause the sound of emission can't present complete reception and registration, make the meaning of one's words cause misunderstanding because of missing language difference problem.

2, because emission is all used same frequency with receiving, thus emission, receive and can't carry out simultaneously, when the other side when giving orders or instructions, we will cause both sides can't hear the information that the other side sends as if also pressing emission key.

3, existing intercom when giving orders or instructions at every turn, the user needs to press emission key could send signal, very inconvenient, therefore intentionally the personage researches and develops a kind of sound-controlled apparatus, when the sound of first speaker is detected by sound control circuit, automatic starting circuit (being equivalent to press the action of emission key) at once, but because desire determines that first speaker is really under telephone condition, the circuit beginning can move, and first speaker has often begun to have said some words, and these words can be by the other side's uppick, therefore after the user need first talk about one section incoherent word, just and then say the content of desiring communication, can guarantee that just the real content of giving orders or instructions is correctly spread out of, so very inconvenient on using.

Therefore, main purpose of the present invention is to provide a kind of sound controlled wireless intercom that does not have the difference of speaking, and makes that the use of this intercom is more convenient, and does not have the language difference generation that language is leaked in conversation, to improve wireless interspeaker utilization benefit and communication quality.

For reaching above-mentioned purpose, main means of the present invention are to add the decision circuitry of giving orders or instructions after the microphone amplifying circuit of wireless interspeaker, and the sound buffering circuit of a first in first out, after making its input be connected to the microphone amplifying circuit, if there is sound promptly constantly to deposit in the sound buffering circuit, to upgrade SoundRec the earliest, and the decision circuitry of giving orders or instructions is also constantly in action, size and other characteristics according to sound, judge whether to meet and be judged to be " may for giving orders or instructions ", address to this place's SoundRec is marked, when treating through affirmation process " really for giving orders or instructions ", restart radiating circuit, treat when circuit is stablized that the address according to the front mark is initial again, be docile and obedient preface and read and send into the D/A circuit, and cooperate the interlock circuit of wireless interspeaker transmitting-receiving, can directly utilize acoustic control to start radiating circuit with the user that wireless interspeaker is provided, effectively solve disappearances such as existing conversation language difference.Therefore technical scheme of the present invention is: a kind of sound controlled wireless intercom that does not have the language difference, comprise transmission circuit with microphone amplifying circuit, it is characterized in that after the microphone amplifying circuit and transmission circuit before, add the sound buffering circuit of a first in first out and a control circuit, give orders or instructions decision circuitry, a D/A circuit, an A/D circuit judgement with cooperate circuit.

It is a kind of simple in structure, easy to use and do not have a sound controlled wireless intercom of language difference that technical scheme of the present invention provides.

The drawing of accompanying drawing is described as follows:

Fig. 1 is the circuit box sketch of existing wireless interspeaker;

Fig. 2 is a nothing language difference device circuit calcspar of the present invention;

Fig. 3 is the temporary schematic diagram of sound of the present invention;

Fig. 4 is one embodiment of the invention circuit block diagrams;

Fig. 5 is extraneous sound wave schematic diagram;

Fig. 6 is the sound wave schematic diagram of normal input;

Fig. 7 is the another embodiment of the present invention circuit block diagram;

Fig. 8 is the circuit block diagram that is assembled in the separate component of the present invention.

Below with regard to element of the present invention and embodiment and conjunction with figs., do one and describe in detail:

At first see also Fig. 2, shown in 4, be respectively circuit block diagram and one embodiment of the invention circuit block diagram of nothing language difference device of the present invention, mainly be after microphone amplifying circuit B, to add a control circuit 43, one sound buffering circuit 44, one decision circuitry 45 of giving orders or instructions, one D/A circuit 41, one A/D circuit 42, cooperate elements such as having intercom transmission circuit A now to form, and transmission circuit A includes a shared antenna 58, one filter circuit 57, one receiving and transmitting signal switched circuit 56, one frequency down circuit 55, two frequency mixers 54,52, one band-pass circuit 53, one demodulator circuit 51, one amplification circuit 61, one modulation circuit 60, one low pass circuit 63, one crystal oscillation circuit 59, one microphone control circuit 64, two amplifiers 65,74, one microphone 66, loud speaker (earphone) 73, one loud speaker control circuit 72, one identification code produces circuit 71, one noise filtering circuit 62, one sound filter circuit 67, one microprocessor 68, one radiating circuit power supply control 70, one receiving circuit power supply is controlled 69 grades (because transmission circuit is the circuit of prior art, non-this case patent emphasis place, so seldom give unnecessary details), the circuit that does not wherein have language difference device comprises:

One control circuit 43, this nothing of master control language difference device and relevant action and the detecting that cooperates circuit thereof;

One sound buffering circuit 44, it is the sound buffering circuit that belongs to first in first out (FIFO), when microphone radio reception behind the A/D circuit, deposit the sound buffering circuit in regular turn in, wait until Em by E1, E2, E3, when recording terminal Em, the address that can come back to E1 covers old information with new data, constantly stores (as shown in Figure 3) for the voice data;

One decision circuitry 45 of giving orders or instructions, be default variable value when producing, Shu Ru audio document relatively is judged to be " may for giving orders or instructions " and reaches " being defined as giving orders or instructions " and whether move for the startup interlock circuit, and several signal indexs of sound segment mark to meeting use for back-end circuit;

One D/A circuit 41 is signaling conversion circuits that a digital revolving die is intended;

One A/D circuit 42 is signaling conversion circuits of an analog-to-digital;

Combination (seeing also shown in Figure 4) by said elements, when using intercom, its microphone 66 can constantly receive outside sound, through 42 conversions of A/D circuit, be temporary in sound buffering circuit 44 after the decision circuitry of giving orders or instructions 45 in regular turn, because outside sound is through desultory sound wave (as shown in Figure 5) often, the requirement of sound wave that may a certain section can be up to standard fixed " may for giving orders or instructions ", but because the deficiency of time set point that continues, so can be override by data afterwards after a period of time, decision circuitry 45 is judged when the sound import value of microphones 66 reaches one decided at the higher level but not officially announced " may for giving orders or instructions " startup value (this value DS is directly set by manufacturer) (seeing also shown in Figure 6) if instead give orders or instructions, just can write down the address P that this section sound is started, the condition for the treatment of reaches " being defined as giving orders or instructions ", and (this condition is directly set by manufacturer, much more general is benchmark to continue for some time T) back starts the transmission circuit A of intercom, when the startup transmission circuit arrives stable operating state, need one section operating time X, and these two sections time T (the important document time of judgement) are exactly the poor period S of language with X (operating time); For avoiding main poor, when control circuit 43 reads data by sound buffering circuit 44 according to the sound beginning P that writes down, can get a trail, promptly by the trail that adds an X ' before the mark P again, after after 41 conversions of D/A circuit, transmit behind the transmission circuit A by intercom, when the sound import value is lower than the condition of " continuing to give orders or instructions ", the end address of its decision circuitry 45 this acoustic segment that writes down of giving orders or instructions, and after reading the end address, finish send action and relative recording is returned normality, when people use wireless tranceiver as from the foregoing, only need to say acoustic information facing to microphone 66, the present invention just can judge automatically and begins and finish, and information sent, the user needn't press arbitrary button again, and because the sound buffer is to adopt the mode that constantly repeats to record to move, so before desiring to give orders or instructions, needn't first talk about some incoherent preposition words, can be because of speak Lou language difference problem of the delay of circuit yet.

In addition, for improving this determine effect that installs its decision circuitry of giving orders or instructions (as shown in Figure 7), can be before the A/D of this device circuit 42, be arranged with two groups of microphone amplifying circuit C and (include microphone control circuit 641, amplifier 651 and microphone 661) and D (include microphone control circuit 642, amplifier 652 and microphone 662), the microphone 661 of one group microphone amplifying circuit C is organized the mouth of the microphone 662 of microphone amplifying circuit D near first speaker than another, so the signal of microphone amplifying circuit C is much larger than the signal of microphone amplifying circuit D, and when keeping for some time, can be judged as telephone condition, this is embodiments of the invention 2.

Moreover, because wireless signal transmitting and receiving adopts same channel, when so both sides launch simultaneously, both sides all can't be correct receive signal, control circuit 43 of the present invention for this reason can be detected receiving circuit, its radiating circuit can be postponed action or send out a signal (but the sound or cresset) when signal is come in, and requires first speaker to repeat acoustic information.

See also shown in Figure 8, be that the present invention is assembled in the circuit block diagram in the separate component, mainly provide the hand-free microphone device of existing wireless interspeaker, decision circuitry 45, a D/A circuit 41, an A/D circuit 42 cooperate microphone, loud speaker (earphone) 8 and transmission circuit control interface V to be made into integration simultaneously so the present invention can give orders or instructions a control circuit 43, a sound buffering circuit 44,, use for existing wireless interspeaker.

In addition, in the general wireless transmission circuit, its receiving circuit all is in holding state (radiating circuit only just starts) at any time when emission, therefore, all can adopt the intermittently pattern of open and close in order to save electric power, but the time intermittently of being afraid of pass situation about missing of a specified duration, its intermittent time all can be lower than 0.2～0.4 second, so power saving effect is limited; So utilizing pronunciation of the present invention is all keeping under the principle in advance, set up in launching condition again and just start transmission circuit, so can be under the control of its emission of transmission circuit and receiving circuit, before the emission voice signal, can add one " spacing wave " by control circuit, and be somebody's turn to do the period at intermittence that " spacing wave " is its receiving circuit of transmission circuit, when being one second (for five times of electricity saver commonly used 0.2～0.4 second) as period at intermittence of receiving circuit, its radiating circuit just can add one second " spacing wave " (the rest may be inferred) before emission, to wake (avoiding the intermittent time) receiving circuit up, so just can reach long-acting purpose of power saving.

In sum, of the present invention simple in structure, easy to use, can effectively solve the existing many disappearances of intercom, the enhancement on the real tool effect.

Claims (4)

1, a kind of sound controlled wireless intercom that does not have the language difference, comprise transmission circuit with microphone amplifying circuit, it is characterized in that after the microphone amplifying circuit and transmission circuit before, add the sound buffering circuit of a first in first out and a control circuit, give orders or instructions decision circuitry, a D/A circuit, an A/D circuit judgement with cooperate circuit.

2, a kind of sound controlled wireless intercom that does not have the language difference as claimed in claim 1, it is characterized in that this sound buffering circuit is the sound buffering circuit that belongs to first in first out, this sound buffering circuit is when recording end, can come back to initial address and cover old information, constantly store for the voice data with new data.

3, a kind of sound controlled wireless intercom that does not have the language difference as claimed in claim 1 is characterized in that described microphone amplifying circuit is arranged with two groups, and wherein one group microphone is than the face of the close first speaker of microphone of another group.

4, a kind of sound controlled wireless intercom that does not have the language difference as claimed in claim 1, it is characterized in that microphone, loud speaker, give orders or instructions decision circuitry, a D/A circuit, an A/D circuit and transmission circuit control interface of a control circuit, a sound buffering circuit, is assembled in the separate component.

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