JPS63238672A - Electronic translation equipment - Google Patents

Abstract

PURPOSE:To improve the detection precision by executing the processing operation at the time of detecting blank information of a prescribed time or longer existing in information after recognition. CONSTITUTION:When an input mode selecting means SLC 11 is connected to a contact (a) and, for example, 'This is a book (Japanese)' is spoken to a microphone 1, a voice recognizing means SR 2 converts 'This is a book (Japanese)', to a character information and sends this information to an electronic translation means TLR 3 through the contact (a) of the SLC 11. The output of the SR 2 is inputted to a blank detecting means VOX 8 through a contact (a) of a switch 12 at this time; and if the VOX 8 detects a blank of one second after 'This is a book (Japanese)', the VOX 8 sends the output to a translation execution indicating means AS 7' and causes the TLR 3 to execute the translating operation through the AS 7' and sends character information 'THIS IS A BOOK (English)' to a voice synthesizing means SM 4, and the SM 4 converts this information to voice information 'This is a book (Japanese)' and sends it to a speaker 5. Thus, processed information of high precision is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an electronic translation device, and in particular to an electronic translation device that detects the end of a source language input signal and automatically starts electronic translation. .

In this specification, translation refers to (1) translating the language of one country into the language of another country, (2) translating an abbreviation into a ``■'' even if the language is within the same country, and (3) Arithmetic operations (general calculations and adding ``pi'' to obtain the numerical value ``3.14...''), etc.

The source language refers to the language, numbers, formulas, etc. before translation, and the translated language refers to the language, numbers, formulas, etc. after translation. For example, in an electronic translation device set to translate Japanese into English, "Good morning" is the original language, and "Good morning" is the translated language.

Conventional electronic translation devices are shown in FIGS. 1 and 2 (A) to (
As shown in C), the original language audio signal from the microphone 1 passes through the external input terminal 2, enters the input amplifier 3, and is amplified to a level at which speech can be recognized. It is recognized, converted into a character signal of the original language, and stored in the memory of the electronic translation circuit 5.

Next, by turning on the translation instruction switch S1 and generating a translation instruction pulse, the character signal of the source language stored in the memory is read and electronically translated into ■■■■ of the translated language. Then, the character signal of the translated language is sent to the speech synthesis circuit 7. The speech synthesis circuit 7 exchanges the character signal of the translated language with an audio signal of the translated language, and then sends this audio signal to the output amplifier 8. The audio signal amplified by the output amplifier 8 is sent to the speaker 9 via the external output terminal 10. The speaker 9 pronounces the sent voice signal in the translated language as a voice in the translated language. Further, the character display circuit 6 displays characters of the original language applied to the electronic translation circuit 5 and characters of the translated language.

Therefore, the operation of the conventional electronic translation device is shown in Fig. 2 (A).
It was as shown in ~(C).

First, in the electronic translation device set for Japanese-English, as shown in the same figure (A), say, for example, "Ana tawada redesuka" into the microphone 1, and then be sure to turn the translation instruction switch S1. By manually generating the translation instruction pulse in step 1 as shown in the figure (B), the figure (B) is generated for the first time.
As shown in C), the translation language “WHO ARE YOU”
? ” was able to be obtained.

Because of this specification, each time a speaker inputs the source language, the speaker must manually operate a translation instruction switch each time in order to obtain the translated language. Performing manual operations like this is not very inconvenient when inputting the source language by keystrokes, but it has the disadvantage of being extremely troublesome and inconvenient when inputting the source language by voice. .

In an electronic translation device equipped with a speech recognition circuit and capable of voice input, input of the source language can be directly inputted by voice, eliminating the need for manual operation, but it is still necessary to use hands to perform translation instruction operations. Therefore, for example, when working with both hands, it is difficult to perform proper operations. Also, for sound equipment such as televisions, radios, and telephones,
When such a conventional electronic translation device is connected or built-in, it is necessary to constantly listen to the source language and properly distinguish between sentences, phrases, words, expressions, etc., and to operate the translation instruction switch frequently to obtain correct translation. I can't get the language. In addition, the listener must always be near the translation instruction switch and operate the translation instruction switch. Moreover, the operator (listener) who uses the electronic translation device connected to a television, radio, telephone, etc., is not always a person who is familiar with the original language. On the contrary, most of the people who use electronic translation devices connected to such audio devices need to wear electronic translation devices because they do not understand the source language. It is completely impossible to perform appropriate and frequent operations on the punctuation of sentences, phrases, words, and expressions. For example, when listening to a foreign movie program on TV, it is extremely inconvenient to watch the dialogue spoken in the movie on the screen and operate the translation instruction switch appropriately while listening to the original language, and it is difficult to actually use it. It is difficult.

Therefore, when the conventional electronic translation device is used as a plaything or for ■■ learning, no particular problem arises, but when used for advanced learning, business, travel, etc., it has no practical value at all.

The present invention eliminates such drawbacks by detecting the end of the input signal in the original language and giving a translation instruction.
The present invention provides an electronic translation device with great practical value that enables automatic translation.

An embodiment of the present invention will be described below with reference to FIGS. 3 to 6.

Fig. 3 is a block diagram showing the principle of an electronic translation device which is an embodiment of the present invention, Fig. 4 is a block diagram of a translation control circuit of the same device, and Fig. 5 shows a specific example of the translation control circuit. The electric circuit diagram and FIG. 6 are timing charts of outputs from each part of the translation control circuit.

In the figure, 1 is a microphone connected to a voice analysis circuit 4 via an input amplifier 3. The speech analysis circuit is a circuit that performs spectrum analysis on a speech input signal, performs speech recognition, and converts the speech input signal into a character signal corresponding to the speech input signal.

The speech analysis circuit 4 is connected to an electronic translation circuit 5 which translates the source language into a translation language. The electronic translation circuit 5 is connected to a character display circuit 6 and a speech synthesis circuit 7. A speech synthesis circuit is a circuit that converts a character signal into a speech signal.There are three types of speech synthesis methods: formant synthesis, linear consonant coding (LPC), and teardrop digitization/compression. It has been put into practical use. In this embodiment, among the linear consonant coding (LPC) methods, the Parcor method, which has particularly stable synthesis characteristics, is used in the speech synthesis circuit 7. Next, the speech synthesis circuit 7 was connected to a speaker 9 via an output amplifier 8. Further, the output side of the input amplifier 3 is connected via the translation control circuit 11 to a relay ('more precisely, a solenoid of the relay) 12 that drives the translation instruction switch S2 of the translation instruction pulse generation system, and the electronic translation circuit 5
A character display circuit 6 and a translation instruction switch S2 are connected to the terminal.

In this way, the electronic translation device of this example was constructed.

Next, the translation control circuit 11 used in this embodiment will be explained.

As the translation control circuit, it is possible to apply various VOX circuits, but in this embodiment, a Schmitt trigger circuit 16 is connected to a limiter circuit 18 via a differential circuit 17, as shown in FIG. A clip circuit 20 based on the first trigger circuit 13 and the no-signal time-DC voltage conversion circuit 19
A second trigger circuit 1 connected to the DC blocking circuit 21 via
4 selectively by a switch S3, and a relay 23 that interlocks and drives the switches S3 and S4 to the output terminal.
is connected to the bistable multivibrator (hereinafter referred to as bistable multi) 22 connected to the second trigger circuit
The output of the DC blocking circuit 21 of No. 4 is passed through the switch S4,
Translation instruction switch S2 and relay 1 to be driven at the output terminal
2 was connected to a monostable multivibrator (hereinafter referred to as monostable multi) 24. In this way, the translation control circuit 11 was constructed. Here, the switch S3 and the switch S4 are interlocked and are always electrically connected to the contacts a and c, respectively. In addition, the translation instruction switch S2 is
It is normally open.

Next, the operation of the translation control circuit 11 configured as described above will be explained.

When the output signal from the input amplifier 3 is sent to the input terminal 15, the first trigger circuit 13 generates a trigger pulse, and applies the trigger pulse to the bistable multi 22 via the switch S3 that conducts the contact a. do. This trigger pulse causes the bistable multi 22, which had been in the first stable state, to
changes to the second stable state, causing current to flow through the relay 23. As a result, the relay 23 is activated, making the switch S3 and the switch S4 conductive to the contacts b and d, respectively.
and maintain that state. Next, when the output signal from the input amplifier 3 ends and the no-signal state exceeds a predetermined time (approximately 1 second in this embodiment), the second trigger circuit 14 generates a trigger pulse. The voltage is applied to the bistable multi 22 via the switch S3, which is turned on to the contact d, and simultaneously applied to the monostable multi 24 via the switch S4, which is turned on to the contact d. This makes bistable multi 2
2 returns from the second stable state to the original first stable state. Therefore, the supply of current to relay 23 is stopped, and switch S3
And switch S4 returns to contact a and contact c, respectively, and becomes conductive. On the other hand, the monostable multi 24 connects the relay 12 to conduct the translation instruction switch S2 connected to the electronic translation circuit 5 by the trigger pulse of the second trigger circuit 14.
Supply current for only a short period of time. Thereafter, by repeating the same operation, the electronic translation circuit 5 can be activated to perform translation.

Furthermore, the translation control circuit 11 will be explained in more detail using FIGS. 5 and 6.

FIG. 5 is an electric circuit diagram showing a specific example of the translation control circuit 11, and FIG. 6 is a timing chart of outputs from each part of the circuit 11.

The first trigger circuit 13 is constructed by connecting a limiter circuit 18 to a Schmitt trigger circuit 16 via a differential circuit 17. Therefore, for example, when a sinusoidal signal is applied to the input terminal 15, the Schmitt trigger circuit 16
Therefore, a square wave is generated at checkpoint 13a, and further,
Checkpoint 13b by passing through the differentiation circuit 17
Both positive and negative trigger pulse waves are output to , and a positive trigger pulse wave is output to contact a of the switch S3 by passing through a diode constituting the limiter circuit 18 .

The second trigger circuit 14 is constructed by connecting a DC blocking circuit 21 to a no-signal time-to-DC voltage conversion circuit 19 via a base clip circuit 20.

In the figure, 31 is a DC blocking capacitor connected via a resistor 32 to the base of a common emitter transistor 33 that performs a switching operation. The collector of the transistor 33 is connected to the +B power supply via a resistor 40, grounded via a charging capacitor 34, and connected to a diode 36 via a resistor 35.

The diode 36 is grounded via a battery 37, and the connection point between the resistor 35 and the diode 36 is connected to a DC blocking capacitor 38, a monostable multi 24 and a bistable multi 2
The contact point b of the switch S3 is connected to the contact point b of the switch S3 via a diode 39 for preventing mutual interference with the switch S4. By configuring the second trigger circuit 14 in this way, for example, when a sine wave signal is applied to the input terminal 15, the transistor 33 is turned on or off depending on the frequency.
Capacitor 3 is used to perform switching operation.
4 can be used for the next stage bass by simply repeating charging and discharging for a short time.
It is not charged to the extent that the clip circuit 20 is activated. However, when there is no signal, the transistor 33 is "O".
Since a bias voltage is applied to the base of the transistor 33 so that it enters the FF'' state, if there is no signal, the capacitor 34 will be charged through the resistor 40 until it becomes equal to the voltage of the +B power supply, so check Point 14
An output voltage that increases with a time constant approximately determined by the resistor 40 and capacitor 34 appears at a. When the voltage of the capacitor 34 generated by this charging becomes higher than the voltage of the battery 37, the base clip circuit 20 is activated and a base clip waveform output appears at the checkpoint 14b. Further, this output is sent to the contact point d via the capacitor 41 as a trigger pulse wave without a DC component. Further, the movable contact piece of the switch S3 is connected to the trigger input terminal of the bistable multi-function switch 22, and the relay 23 is connected to the same output terminal. The movable contact piece of the switch S4 is connected to the trigger input terminal of the monostable multi 24, and the output terminal thereof is connected to the relay 12. In addition, switch S3
and switch S4 are interlocked by relay 23.

The operation of the translation control circuit 11 configured as described above will be explained as follows with reference to FIG. 6(a) to 6(g) are timing charts of outputs from each part of the circuit 11. FIG.

As shown in FIG. 6(a), when the audio input signal "Anatawada redesuka" is applied to the input terminal 15, the Schmitt trigger circuit 16, the differentiator circuit 17, and the limiter circuit 18 of the second trigger circuit 13 The waveform is shaped by , and a trigger pulse as shown in FIG. This trigger pulse enters the bistable multi 22 via the switch S3, and changes the bistable multi 22 from the first stable state to the second stable state as shown in FIG. This causes relay 23 to operate and switch S3 to
and switch S4 is made conductive to contact b and contact d, respectively. The audio input signal "Anatawadaredesuka" is composed of "Anatawa" and "Daredesuka", and is composed of "Anatawa" and "Daredesuka".
In normal conversation, the difference between "daredesuka" and "daredesuka" is about 0.1 to 0.
．． Since there is a no-signal time of about 25 seconds, the charging capacitor 34 is continuously charged during that time. An increase is observed. However, since the specified voltage determined by the battery 37 of the base clip circuit 20 is not reached, checkpoint 1
4b, no change appears as shown in FIG. 4(d). Therefore, as shown in FIG. 5(E), the output of the second trigger circuit 14 does not appear. Next, the charge in the capacitor 34 is discharged by applying the "Dare Desuka" audio signal and returns to the original state, but after the end of the application of the "Dare Desca" audio input signal, the no-signal input state continues for a while. The voltage at the capacitor 34 and checkpoint 14a reaches the specified voltage in about 1 second. Therefore, a trigger pulse as shown in FIG. 6(E) is sent out from the second trigger circuit 14. This trigger pulse is applied via switch S3 to the bistable multi-2
At the same time, the signal is sent to the monostable multiplexer 24 via the switch S4. This makes bistable multi 2
2 returns to the first stable state again as shown in FIG.

Further, in accordance with this, the operation of the relay 23 is stopped, and the switch S3 and the switch S4 are brought into contact with the contact a and the contact c, respectively, and return to the original state again. On the other hand, the monostable multi 24 is activated by applying this trigger pulse.
An output pulse as shown in is generated, the relay 12 is driven for a short time (time corresponding to the output pulse width), and then immediately returned to its original state. Therefore, the relay 12 turns on the translation instruction switch S2 for this short period of time and causes the electronic translation circuit 5 to perform the translation operation.

Next, an audio input signal "Watashiwatomdesu" is applied, but this audio input signal "Watashiwatomdesu" is composed of "Watashiwa" and "Tomdess", and there is approximately 0 between them. A no-signal time of 0.15 to 0.3 seconds occurs during normal conversation, and the second trigger circuit 14 does not generate a trigger pulse during such a no-signal time. Also, for this audio input signal, Fig. 6 (a) ~
As shown in (g), each part operates in the same way and sends out the same output. The reason why the above-mentioned no-signal time varies from about 0.15 seconds to 0.3 seconds and from about 0.1 to 0.25 seconds is due to individual differences among speakers.

Next, the operation of the electronic translation device of this embodiment will be explained.

The audio signal in the original language applied to the microphone 1 is amplified by the input amplifier 3 to a level that allows speech recognition, is sent to the audio analysis circuit 4, is converted into a character signal in the original language, and is then sent to the electronic translation circuit 5. is applied to On the other hand, input amplifier 3
The output of is also applied to the translation control circuit 11.

When an audio signal of the original language is applied to the translation control circuit 11,
The trigger pulse from the first trigger circuit 13 is bistable multi 2
2. This trigger pulse causes the bistable multi 22 to conduct the switches S3 and S4 to contacts b and d, respectively. Further, when the audio signal of the original language ends and a no-signal state continues for about 1 second or more, the second trigger circuit 14 generates a trigger pulse, and this trigger pulse causes the monostable multi 24 to drive the translation instruction switch S2. Activate relay 12. By doing this, the original language character signal applied to the electronic translation circuit 5 earlier is translated by the electronic translation circuit 5. The translated language character signal output from the electronic translation circuit 5 is converted into a translated language speech signal by the speech synthesis circuit 7, and then the translated language speech signal is output by an output amplifier 8.
is sent to the speaker 9 via the . The speaker 9 produces sounds in the translated language. For example, if electronic translation circuit 5 is set for Japanese-English and you say "good morning" into microphone 1, "good morning" will be pronounced from speaker 9 about one second later, without having to manually operate the translation instruction switch. It is. Therefore, it is no longer necessary to search for and operate the translation instruction switch after pronouncing "Good morning" as in the past.

Further, a memory is provided in the preceding stage of the electronic translation circuit 5, and the original language is temporarily stored in this memory, and by operating the translation instruction switch, the original language temporarily stored in this memory is transferred to the electronic translation circuit 5. The present invention can also be easily implemented in a type of electronic translation device that transmits translation.

Furthermore, although the first trigger circuit 13 of the translation control circuit 11 depends on the output level of the input amplifier 3, it can be easily configured by a combination of a striped circuit and a differentiating circuit, or a combination of a switching transistor and a differentiating circuit. Can be done.

In addition, the second trigger circuit 14 and the integrating circuit are configured by Schmitt type.
It is constructed by connecting to a differentiating circuit via a trigger circuit, and a trigger pulse can be generated after the signal transmission from the input amplifier 3 is completed.

Next, another embodiment of the present invention will be described using FIGS. 7 and 8.

FIG. 7 is an electric circuit diagram of an electronic translation device according to another embodiment of the present invention, and FIG. 8 is a timing chart of outputs from each part of the translation control circuit 11a of the same device.

A microphone 1 is connected to a voice analysis circuit 4 via an input amplifier 3. The voice analysis circuit 4 is connected to a contact e of an input changeover switch S5 for selecting between voice input and character input.

Further, the character signal generation circuit 50 is connected to the contact f of the input changeover switch S5. A movable contact piece of the input changeover switch S5 is connected to the electronic translation circuit 5. Further, the electronic translation circuit 5 is connected to a speaker 9 via a speech synthesis circuit 7 and an output amplifier 8. Further, the output terminal of the input amplifier 3 is also connected to the translation control circuit 11a. The translation instruction switch S10 of the electronic translation circuit 5 is the translation control circuit 11.
It can be opened and closed by a relay 51 connected to a or manually.

Further, the character display circuit 6 is connected to the electronic translation circuit 5.

The microphone 1, input amplifier 3, voice analysis circuit 4, electronic translation circuit 5, character display circuit 6, voice synthesis circuit 7, output amplifier 8, and speaker 9 in the figure are the same as those in the previous embodiment.

Next, the translation control circuit 11a will be explained using FIGS. 7 and 8.

Switches S6 and S8 are interlocked with relay 66 and are normally electrically connected to contacts h and b, respectively. Also, switch S7
, S9 are interlocked with the relay 72, and the contacts i, S9 are normally connected, respectively.
Conductive to m. Therefore, check point 7 is always
Since no current from the battery 73 flows through the resistor 79, no voltage is generated at the resistor 79.

The non-locking switch S11 is linked to a power switch (not shown). Further, 65 and 70 are power supply terminals for power supply, respectively, and the power supply terminal 65 is used to operate a no-signal (also called blank) detection circuit consisting of transistors 60, 62, 64, a relay 66, etc. The power supply terminal 70 supplies power for operating the relay 72. Here, the operation of the translation control circuit 11a will be explained using FIGS. 8(A) to 8(E). FIG. 8 is a timing chart of outputs from each part of the circuit 11a.

Now, when the power switch (not shown) of the electronic translation device of this embodiment is turned on at time t0 as shown in FIG. 8, the non-locking switch S11 is temporarily opened in conjunction with this. . Accordingly, the current from the power supply terminal 70 flows through the relay 72, causing the movable contacts of the switches S7 and S9 to conduct to the contact j and the contact n, respectively. next,
Even if the non-locking switch S11 returns to the open state, the current from the power supply terminal 70 will flow through the switch S7 and the switch S6, which is conductive to the contact h, because the switch S7 conducts to the contact j. Since the signal is supplied to the relay 72 via the relay 72, the relay 72 is self-supported as shown in FIG. Therefore, relay 72 causes switch S9 to
continues to conduct to contact n, and the current from battery 73 flows to resistor 74 via switch S9 and switch S8, which conducts to contact l. The output appears. This output is
It is sent to a differentiating circuit made up of a capacitor 75 and a resistor 76, and generates a positive trigger pulse. However, since the diode 77 that acts as a remic circuit becomes reverse biased, it is not sent to a monostable multivibrator (hereinafter referred to as monostable multi) 78. Unable to apply trigger pulse.

For this reason, the monostable multi 78 does not generate an output as shown in FIG.

This state continues from time t0 to time t1, but as shown in FIG. 3. Input selection ■■ Sent to the base of the transistor 60 via the switch S12. By setting the operating point of the transistor 60 to an operating point that allows only a half cycle of the input signal to pass through, the half cycle of the input signal appears between both terminals of the capacitor 61 in a rectified form. . That is, a signal applied to the base of the transistor 60 appears at both ends of the capacitor 61 as a DC signal. Then, the DC voltage appearing in the capacitor 61 causes the collector current of the transistor 62 to flow, and in order to cause the collector current of the transistor 64, that is, the operating current of the relay 66 to also flow, switches S6 and S8 are activated.
Each movable contact piece is electrically connected to contact g and contact h. Then, by operating the switch S6, the current flowing through the contact h and operating the relay 72 is cut off.
The relay 72 is deactivated and the switch S9 is brought into contact with the contact m, but since the switch S8 is already brought into contact with the contact h by the relay 66, the voltage at the check point 79 is changed to (d) in the same figure. No change as shown. Note that if the operating current of the relay 72 is cut off before the switches S6 and S8 operate, the capacitor 71 is connected to the switch S.
6. Until S8 completes its operation, connect the relay 72 so that it falls a little later than the rise of the relay 66, as shown in (b) and (c) of the same figure. However, it can also be removed by selecting and using the operating characteristics of the relays 72 and 66. Next, time t1 to t2 of "Anatawa" and time t3 to t4 of "Daredesuka"
In a normal conversation, it takes about 0.15 to 0.25 seconds (
This corresponds to time t2 to t3. Since there is a time period close to a no-signal state (the time range is approximately 0.15 to 0.25 seconds depending on individual differences), during this time, the DC voltage due to the output signal of the input amplifier 3 does not appear on the capacitor 61. However, the capacitors 61 and 63 have already been charged between time t1 and t2.
Since they were charged, their discharge currents cause the respective collector currents of transistors 62 and 64 to flow, thereby causing operating current to flow through relay 66.

Furthermore, even if the signal output from the input amplifier 3 disappears after the time t3 to t4 of the "darede deska" has elapsed, the relay 66 is activated during the time t4 to t5 (in this embodiment, the capacitors 61 and 63 so that the discharge time of is approximately 1 second,
The discharge circuit was determined. ) continued to operate. Thereafter, after the capacitors 61 and 63 have been discharged, the transistor 64 is in the "OFF" state, so the operating current of the relay 66 is cut off, and the switches S6 and S8 are respectively restored and conductive to the contacts h and l. Therefore, the output of the checkpoint 79 falls as shown in (d) of the same figure.

Accordingly, this output change becomes a negative trigger pulse in the differentiator circuit, which forward biases diode 77 and is applied to monostable multi 78. With this trigger pulse, the monostable multi 48 generates a pulse output during time t5 to t6, sends it to the relay 51, and activates the relay 51. Accordingly, the translation instruction switch S10 is activated from time t5 to
It is conductive during t6 and can apply a translation instruction pulse to the electronic translation circuit 5.

Next, during time t5 to t7, the signal output from the input amplifier 3 disappears, so the transistors 62 and 64 are turned off.
'' state, and since no current is supplied to the relay 66, the switch S6 and the switch S8 conduct to the contact h and the contact l, respectively. Also, the relay 72 does not operate at all because no current is supplied during this period.Therefore, the check point 79, as shown in FIG.
7, no output appears.

Next, a case will be described in which the signal output from time t9 to t10 of "Korewa Hondesu" is successively applied from the input amplifier 3 to the translation control circuit 11a.

In this case, relay 72 will not be activated at all, and only relay 66 will be activated to activate monostable multi 78.

As shown in FIG. 5A, the input signal applied at time t7 charges the capacitors 61 and 63 and turns the transistors 62 and 64 into the "ON" state, so that the relay 666
operates as shown in the same figure (c). This causes the switches S6 and S8 to conduct to the contacts g and h, respectively. In this case, the operation of the switch S6 does not contribute to the generation of the trigger pulse, unlike during the time t0 to t1, since the switch 7 is electrically connected to the contact i. In this way,
When the switch S8 conducts to the contact h, an output as shown in FIG. However, since the diode 77 is biased in the reverse direction, no trigger pulse is applied to the monostable multi 78 as shown in FIG. Also, the minute time t8-t9 between the time t7-t8 of "Korewa" and the time t9-t10 of "Hondesu"
(Usually 0.15 to 0.25 seconds), a state close to no signal continues, but the capacitors 61 and 63 have already been charged for the time t.
Since charging was performed between 7 and t8, the transistors 62 and 64 can be kept in the "ON" state during such a short period of time. As a result, current continues to flow through the relay 66, and the relay 66 continues to operate. Furthermore, time t10
Thereafter, until the charges stored in the capacitors 61 and 63 are discharged and the transistor 64 is turned OFF, a current flows through the relay 66 as shown in FIG. The supply of current to 66 is cut off, switch S8 returns to its original state, and conducts to contact l as before.
At the checkpoint 79, an output as shown in FIG. 4(d) appears. This output change is shaped into a negative trigger pulse by a differentiating circuit, and forward-biased diode 7
The monostable multi 78 sends an output pulse to the relay 51 from time t11 to t12, as shown in FIG.

Therefore, the relay 51 operates between time t11 and time t12, and conducts the translation instruction switch S10 linked thereto.
Translation can be performed by applying a translation instruction pulse to the electronic translation circuit 5.

The same operation can be repeated thereafter.

Next, the operation of the electronic translation device of this embodiment will be explained.

First, turn on the power switch, make the input selector switch S5 conductive to the contact c, and say "ana tawada redesuka" into the microphone 1. This audio signal of the original language will be transmitted from the microphone 1 to the input amplifier 3. is sent to the voice analysis circuit 4 via
It is converted into a character signal of the original language. Thereafter, this original language character signal is applied to the electronic translation circuit 5 via the input changeover switch S5. On the other hand, the output of the input amplifier 3 is applied to the translation control circuit 11a via a switch S12 linked to the input changeover switch S5. The translation control circuit 11a is
When approximately 1 second has elapsed after the application of the audio signal in the original language of "Ana Tawada Redesuka" is completed, the monostable multi 78 is activated and current is caused to flow through the relay 51 for a short period of time. As a result, the translation instruction switch S10 becomes conductive for a short period of time, sends a translation instruction pulse to the electronic translation circuit 5, activates the electronic translation circuit 5, and converts the previously applied character signal of the source language into the character signal of the translated language. Let it be translated.

Currently, the electronic translation circuit 5 is set for Japanese and English.

Therefore, the character signal in the translated language by the electronic translation circuit 5 is "WHO ARE YOU?", and this output is applied to the speech synthesis circuit 7, where it is converted into the translated language speech signal "Who are you", and then sent to the output amplifier 8. ``Who are you'' is pronounced from the speaker 9 through the . The character instruction circuit 6 displays characters in the original language and the translated language.

From now on, the same operation can be repeated.

By doing so, it is possible to automatically perform translation in the electronic translation circuit 5 after applying the audio signal of the original language. In addition, in this embodiment, the end of the voice input signal from the microphone was detected and the translation instruction was given for electronic translation, but the translation control circuit can also be used in an electronic translation device that applies the original language by key operation. By connecting the input terminal of the electronic translation circuit to the input terminal of the electronic translation circuit, it is easy to detect the end of the input signal of the original language by key operation and automatically perform the translation.

Further, in this embodiment, the transistors 60, 62,
64, a signal detection circuit constituted by a relay 66, etc., but instead of this circuit, various VOX circuits commonly used in transmitters, tape recorders, etc. can be used.

Furthermore, by interlocking the translation instruction switch S10 with the relay 51 and enabling manual operation, it is also possible to select between automatic operation and manual operation, so that you can read the sentences in the original language while thinking into the microphone. It is convenient because you can switch to manual mode if you want to pronounce the sound in a ``pop'' or ``pop'' manner.

Furthermore, by using a variable resistor as the resistance in the circuit that contributes to the discharge of the capacitors 61 and 63, it is possible to easily adjust the time required for the no-signal state to operate the translation control circuit 11a. This is extremely effective because it allows translation to be performed immediately or with a slight delay after application of the input signal, in accordance with individual differences in pronunciation.

Further, as an embodiment of the present invention, relays 12, 23, 51
, 66, 72, etc. have been described and explained, but of course this is for the sake of clarity, so transistors, thyristors, photocouplers,
A similar operation can be performed by using a magnetoresistive element, an IC, or the like. Furthermore, these may be more suitable for high-speed switching operations.

In addition, although only an example is shown in which the translation control circuit is connected to the output side of the input amplifier, it is not limited to this, and it is also possible to connect it to the output side of the speech analysis circuit, or without sharing the microphone and input amplifier. A separate microphone, dedicated to the translation control circuit,
An input amplifier or the like may also be provided. However, in that case, it is desirable that the separately provided microphone be placed near the microphone 1.

In addition, a band pass filter (BPF) is used as a front stage of the translation control circuit. By intervening the band 80Hz to 240Hz, the translation control circuit can be made to respond selectively to only the human voice even when the surrounding noise is large.
Automatic translation instructions with fewer errors are possible. this is,
In the case of Japanese, the fundamental frequency is approximately 80Hz to 240Hz.
This is because by detecting only this frequency band, it is possible to detect no signals with less noise. Further, the same effect can be obtained even if the band of the band pass filter is set to 300 to 3400 Hz to match that of the telephone line.

Furthermore, as shown in Figure 1, by providing an external input terminal, you can use other TVs, radios, etc. without using the microphone 1.
It is also easy to translate the original language from audio devices such as telephones and tape recorders.

It is also easy to provide an external output terminal.

By doing so, the electronic translation device of the present invention can
You can finally show your true worth.

Further, as an embodiment of the present invention, an example in which translation is instructed by a translation instruction pulse has been described, but the present invention is not limited to this.

As described below, according to the present invention, by detecting the end of application of the source language input signal and turning the translation instruction switch into the "ON" state, each time the source language input signal is applied,
There is no need to manually operate the translation instruction switch each time, and the translation instruction switch is automatically turned ON every time the input signal of the source language is applied, and the translated language is sent out using an electronic translation device. can be provided.

Furthermore, by using the electronic translation device of the present invention, manual operations are not required at all, so even people with hand disabilities can easily perform electronic translation even when they are carrying luggage in their hands. . Therefore, when the electronic translation device of the present invention is connected to or built into a television, radio, telephone, etc. by connecting the external input terminal of the electronic translation device, The present invention has great practical value, such as being able to automatically electronically translate input signals in the original language.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a conventional electronic translation device, Fig. 2 is a timing chart of signals of each part of the device, and Fig. 3 is a block diagram for explaining the principle of an electronic translation device that is an embodiment of the present invention. 4 is a block diagram of the translation control circuit 11 of the same device, FIG. 5 is an electric circuit diagram showing a specific example of the translation control circuit 11, and FIG. 6 is the timing of output of each part of the translation control circuit 11. FIG. 7 is an electric circuit diagram of an electronic translation device according to another embodiment of the present invention, and FIG. 8 is a timing chart of outputs from various parts of the device. 1...Microphone, 3...Input amplifier 4...Speech analysis circuit, 5...Electronic translation circuit, 6...Character display circuit, 7...Speech synthesis circuit, 8...Output amplifier, 9...
Speaker, 11, 11a... Translation control circuit, 12, 23, 66, 51, 72... Relay, 13... First trigger circuit, 14... Second trigger circuit, 15... Input terminal,
16... Schmitt trigger circuit, 17... Differential circuit,
18... Limiter circuit, 19... No signal time - DC voltage exchange circuit, 20... Base clip circuit, 21... DC blocking circuit, 22... Bistable multi, 24, 78... Monostable multi, 13a, 13b, 14a, 14b... Checkpoint, 31, 34, 38, 41, 61, 63, 71, 7
5... Capacitor, 32, 40, 35, 74, 76...
Resistor, 33, 60, 62, 64...Transistor, 36
, 39, 77...Diode, 37, 73...Battery, 50...Character signal generation circuit, 65, 71...Power terminal, S1, S2, S10...Translation instruction switch, S5...Input selection switch, S3, S4, S6, S7 , S8, S9, S12...switch, S11...non-locking switch,

Claims (1)

[Scope of Claims] (1.) Translation in which the source language input section is connected to the translated language output section via the electronic translation section, and the end detection means of the source language input signal and the electronic translation section are made to perform the translation operation. 1. An electronic translation device, characterized in that a translation control section having an instruction means is connected to the electronic translation section. (2.) The electronic translation device as set forth in claim 1, wherein the termination detection means is a no-signal detection circuit.