JP3062486B1 - Communication error prevention device for transceiver - Google Patents

Abstract

The present invention provides a speech control type sound generator without a word difference, which enables a complete call using a transceiver. A communication error prevention device for a transceiver according to the present invention is a device that is used in a wireless communication device to ensure the integrity of wireless communication contents, and includes a control circuit, a voice storage circuit, a transmission determination circuit, and a digital communication device. A device that has an analog conversion circuit and an analog-to-digital conversion circuit, and is combined with a transmission / reception circuit of a general telephone, has a simple structure, is convenient to use, and can provide a telephone call without a word difference. Have been.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing a communication error of a transceiver, and more particularly to a voice-controlled transceiver in which a launching circuit is activated by voice. The present invention relates to a device capable of preventing transmission leakage of a wireless communication device and increasing convenience of using a transceiver.

[0002]

2. Description of the Related Art Advances in communication technology have enabled people to communicate in good and convenient communication schemes. Of which
The low-power transceiver is the next most popular communication product after the mobile phone, and is used in various places and scenes such as a large sales floor, a factory, and a travel, and its application range is wide and convenient. Also, since no license is required for use, it is widely used by the general public. FIG. 1 is an electric circuit block diagram of a general transceiver. It consists of a shared antenna (18), a filter circuit (17), and a transmission / reception switching circuit (1).
6), a frequency lowering circuit (15), two mixing circuits (12) and (14), a band-pass circuit (13), a demodulation circuit (11), a frequency increasing circuit (21), and a modulation circuit (2
0), low-pass circuit (23), quartz oscillation circuit (19),
Microphone control circuit (24), two amplifiers (2
5), (34), microphone (26), speaker (3)
3), speaker control circuit (32), identification code generation circuit (31), noise filter circuit (22), audio filter circuit (27), microprocessor (28), launch circuit power supply controller (30), reception circuit power supply controller (29).

[0003] Such a conventional transceiver has the following disadvantages in use. 1. When a user talks on a conventional transceiver, the transceiver cannot emit a signal without first pressing a talk key. However, due to the launch and the capacitance effect of its correlating circuit elements, a completely stable working state can only be achieved with a certain time delay. If the user speaks before the circuit is fully stable, a situation in which the beginning of the speech is not completely heard at the receiving end, i.e., a word-difference situation, will be fired. The voice was not completely transmitted, and the word difference problem sometimes caused misunderstanding in the content of the call. 2. The same frequency is used for both launch and receive,
Therefore, launching and receiving cannot proceed at the same time, and when the other party transmits, when the other party presses the firing key, both parties cannot hear the information sent by the other party. 3. The conventional transceiver is inconvenient because it cannot send out a signal unless the user first presses the firing key when transmitting every time. To this end, a type of voice control device has already been provided, instead of activating the circuit and pressing the firing key as soon as the voice control device detects the speaker's voice. However, the circuit does not start unless the speaker is definitely determined to be in the utterance state, so that the first part of the utterance cannot be heard by the other party. For this reason, the user must first speak the irrelevant story and then speak the content that he / she wants to communicate, so that it is necessary to spend the time required to start the circuit and then accurately send the content that he / she really wants to convey. Was inconvenient enough.

[0004]

SUMMARY OF THE INVENTION The main object of the present invention is to make the use of a transceiver more convenient, to prevent the occurrence of a word difference in a call that causes crosstalk in a call, and to reduce the effect of use of the transceiver and the call quality. An object of the present invention is to provide a kind of transceiver error prevention device of a transceiver which can be improved.

[0005]

According to the first aspect of the present invention, the first input is output first after the microphone amplifier circuit (B) and before the transmission / reception circuit (A) (First I / O).
An audio storage circuit (44) of an ninput first output (FIFO), and a control circuit (43) and an utterance determination circuit (4) as circuits for performing determination and related operations.
5) A communication error prevention device for a transceiver, which is configured by combining a digital / analog conversion circuit (41) and an analog / digital conversion circuit (42).

[0006] In the first aspect of the present invention, the audio storage circuit (44) is a voice storage device for outputting a previously input one first, and when the recording of the voice storage device reaches the end,
By returning to the start address and overwriting the new data with the old data, the audio data is constantly stored.

According to the first aspect of the present invention, the utterance judging circuit (45) has a variable value set at the time of production, compares it with input voice data, and activates or deactivates a correlation circuit. The corresponding audio stage is marked with several signal indicators for use in the circuit at the rear end.

The digital-to-analog conversion circuit (41) is a circuit for converting a digital signal to an analog signal.

According to the first aspect of the present invention, the analog
The digital conversion circuit (42) is a circuit that converts an analog signal into a digital signal.

According to the first aspect of the present invention, the control circuit (43) controls the operation and detection of a communication error prevention device of the transceiver and a correlation circuit associated therewith.

According to a second aspect of the present invention, the utterance determination circuit (4
In order to enhance the judgment effect of 5), two sets of microphone amplifier circuits are provided in the communication error prevention device, and one set of the microphone amplifier circuits is arranged so that the other set of the microphone amplifier circuits is closer to the mouth of the speaker. 2. The communication error preventing device for a transceiver according to claim 1, wherein the device is arranged so as to approach the communication error.

According to a third aspect of the present invention, the control circuit (4
3), a voice storage circuit (44), a speech determination circuit (45),
A digital-to-analog conversion circuit (41), an analog-to-digital conversion circuit (42), a microphone, an earphone or a speaker, and a transmission / reception circuit control interface are combined into one independent individual, and the conventional transceiver does not need to hold a transceiver. The communication error preventing device for a transceiver according to claim 1, wherein:

According to a fourth aspect of the present invention, the control circuit (43)
Adds an `` empty signal '' before the emission voice signal, and the `` empty signal '' corresponds to the intermittent time of the receiving circuit of the transmitting and receiving circuit, thereby awakening the receiving circuit to avoid the intermittent time,
2. The apparatus according to claim 1, further comprising reading the voice data from the voice storage circuit and transmitting the voice data from the transmission circuit of the transmission / reception circuit to save power. I have.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The speech error preventing device for a transceiver according to the present invention is provided with an utterance determination circuit and a voice storage circuit after a microphone amplifier circuit, and an input terminal of the voice storage circuit is connected to the microphone amplifier circuit. And the voice is constantly stored in the voice storage circuit, the earliest voice record is updated, and the utterance determination circuit is also operated continuously, and the voice volume and other characteristics cause the voice to be uttered. It is determined whether or not there is, marking is performed on the address of the voice recording of this part, and the firing circuit is activated when it is confirmed that the speech is in the confirmation process, and the circuit is further stabilized Sometimes, starting from the above marked address, the stored data is read out in order and sent to the digital-to-analog conversion circuit, as well as a combination with a transceiver transmission / reception correlation circuit. Allowed, the transceiver user Yes to be able to start the firing circuit by voice directly, thus is effectively solve the conventional call error problem.

[0015]

2 and 4 are electric circuit block diagrams of the present invention. According to the present invention, after the microphone amplifier circuit (B), the control circuit (43) and the first input first output (First Input) are output.
A tFirst First Output (FIFO) voice storage circuit (44), a speech determination circuit (45), a digital / analog conversion circuit (41), and an analog / digital conversion circuit (42) are provided. Is combined with The transmission / reception circuit (A) includes a common antenna (58), a filter circuit (57), a transmission / reception switching circuit (56), a frequency dropping circuit (55), two mixing circuits (52), (54), and a band-pass circuit (5).
3), demodulation circuit (51), frequency increase circuit (61), modulation circuit (60), low-pass circuit (63), quartz oscillation circuit (59), microphone control circuit (64), two amplifiers (65), ( 74), microphone (66), speaker (73), speaker control circuit (72), identification code generation circuit (71), noise filter circuit (62), audio filter circuit (67), microprocessor (68), emission circuit A power controller (70) and a receiving circuit power controller (69) are provided. The transmission / reception circuit (A) is a commonly used circuit and is not included in the scope of the claims of the present invention, so that detailed description is omitted.

The control circuit (43) controls the operation and detection of the present apparatus and circuits associated therewith.

The sound storage circuit (44) is a FIFO sound storage circuit, and the sound pickup of the microphone is analog / digital.
The voice storage circuit (44) via a digital conversion circuit
Are sequentially stored as E1, E2, E3... Em,
After recording up to the terminal Em, the process returns to the address of E1 and overwrites the data anew, and thus the audio data is stored without interruption (see FIG. 3).

The utterance determination circuit (45) compares the input voice data with a variable value set at the time of manufacture of the maker, determines "possible utterance" and "determines utterance", and makes a correlation. Used to activate and deactivate the circuit. And marking a plurality of signal indicators for the corresponding audio stage,
Provide for use of rear end circuit.

Digital / analog conversion circuit (41)
Is a circuit for converting a digital signal into an analog signal.

An analog / digital conversion circuit (42)
Is a circuit for converting an analog signal into a digital signal.

By the combination of the above-described circuits shown in FIG. 4, during use of the transceiver, the microphone 66 continually receives the external voice and converts it in the analog / digital conversion circuit (42). The data is sequentially stored in the voice storage circuit (44). The external sound is usually a discontinuous sound wave as shown in FIG. 5, and a part of the sound wave may match the criterion of “possible utterance”. However, after a certain time, subsequent data is overwritten because the duration is insufficient for the set value. Conversely, as shown in FIG. 6, the utterance determination circuit (45) sets the input voice of the microphone 42 to “possible utterance”.
Is satisfied, that is, when the start value (the value DS is directly set by the manufacturer) is satisfied, the head part (P) of the voice of this portion is recorded, and the determination condition of "utterance and confirmation" (this condition is Is set directly and generally matches a certain duration T), the transceiver circuit (A) of the transceiver is activated, and the transceiver circuit (A) is activated to achieve a stable working state. The time (X) is required, and the two times T (time of the judgment condition) and X (working time) are the error time (S). To prevent errors,
When reading data from the head part (P) of the voice recorded by the voice storage circuit (44), the control circuit (43) takes a certain prefix, that is, further adds (X ′) before the head part (P). )
After that, the digital signal is converted by the digital / analog conversion circuit (41), a signal is emitted from the transmission / reception circuit (A) of the transceiver, and when the input voice value becomes lower than the determination condition of "speech continuation", The utterance determination circuit (45) determines that this is the end address of the voice stage recording, and after reading the end address, the firing operation is terminated and the correlation recording is reset to a normal state. As described above, when the user uses the transceiver, only the microphone (2
If the voice signal is sent to 6), the user does not press any key, and the voice storage circuit operates in a manner of recording continuously and redundantly, so that a preamble that is not related to the voice before the voice transmission is transmitted. It is not necessary to perform the above operation, and the problem of the communication error due to the delay of the circuit does not occur.

In addition, as shown in FIG. 7, two sets of microphone amplifying circuits (C) are provided before the analog-to-digital conversion circuit (42) as shown in FIG. ) And (D), and the microphone amplifier circuit (C) includes a microphone controller (641),
Another microphone amplifier circuit (D) includes an amplifier (651) and a microphone (661), and includes a microphone controller (642), an amplifier (652), and a microphone (662). One of the microphones (661) of the microphone amplifier circuit (C) is the microphone (6) of the other microphone amplifier circuit (D).
62) When the speaker approaches the mouth of the speaker, the signal of the microphone amplifier circuit (C) is made much larger than the signal of the microphone amplifier circuit (D) and is maintained for a certain period of time. Is to be determined. This is the second embodiment of the present invention.

Furthermore, if the same channel is used for transmitting and receiving radio signals, the control circuit (43) of the present invention detects the receiving circuit in consideration of the fact that when both fire simultaneously, both cannot receive the signal correctly, When a signal is received, the firing circuit slows down operation temporarily or generates one signal (voice or lamp lighting) to inform the user that the other party is transmitting.

FIG. 8 is a diagram showing a second embodiment of the present invention.
This is an embodiment applied to a conventional transceiver that does not need to hold a transceiver. In this embodiment, the control circuit (4
3), a voice storage circuit (44), a speech determination circuit (45),
A microphone, an earphone (speaker) (8), and a transmission / reception circuit control interface (V) are combined and provided integrally with a digital / analog conversion circuit (41) and an analog / digital conversion circuit (42).

In addition, in a general radio wave transmission / reception circuit, the reception circuit is put into a standby state at any time (the emission circuit is activated only at the time of emission). For this reason, an intermittent opening / closing operation mode can be employed to save power. However, if the intermittent time is long, reception omission may occur, so the intermittent time is set to 0.2 to 0.4 seconds, and the power saving effect is finite. According to the present invention, the transmission / reception circuit is activated only when the firing condition is satisfied under the principle of temporarily storing the sound in advance, and the transmission / reception circuit is controlled by the transmission and reception circuits to generate the emission voice signal. Before, the control circuit adds one “empty signal”, and the “empty signal” corresponds to the intermittent time of the receiving circuit of the transmitting and receiving circuit, and the intermittent time of the receiving circuit is 1 second (that is, the intermittent time of the conventional power saving device). When the firing time is 0.2 to 0.4 seconds, the firing circuit adds a 1-second empty signal before firing (the analogy is also used when the length of the intermittent power saving device is different from this). In this way, an excellent power saving effect is achieved by awakening the receiving circuit while avoiding the intermittent time.

[0026]

The communication error prevention device of the transceiver of the present invention is used in a wireless communication device to ensure the integrity of wireless communication contents, and includes a control circuit, a voice storage circuit, a transmission determination circuit, A device having a digital-to-analog conversion circuit and an analog-to-digital conversion circuit, in which a transmission / reception circuit of a general telephone is combined, which has a simple structure, is convenient to use, and can provide a telephone conversation without a word difference. It has inventiveness, novelty, excellent practicality, and industrial value.

[Brief description of the drawings]

FIG. 1 is an electric circuit block diagram of a general transceiver.

FIG. 2 is an electric circuit block diagram of the present invention.

FIG. 3 is a diagram showing a voice storage circuit according to the present invention.

FIG. 4 is an electric circuit block diagram of a specific embodiment of the present invention.

FIG. 5 is a view showing a sound wave of the external world.

FIG. 6 is a sound wave display diagram of a normally input voice.

FIG. 7 is an electric circuit block diagram of another embodiment of the present invention.

FIG. 8 is an electric circuit block diagram of a second embodiment of the present invention.

[Explanation of symbols]

(18) Common antenna (17) Filter circuit (16) Transmission / reception switching circuit (15) Frequency drop circuit (12), (14) Mixing circuit (13) Band pass circuit (11) Demodulation circuit (21) Frequency increase circuit (20) ) Modulation circuit (23) Low-pass circuit (19) Quartz vibration circuit (24) Microphone control circuit (25), (34) Amplifier (26) Microphone (33) Speaker (32) Speaker control circuit (31) Identification code generation circuit ( 22) Noise filter circuit (27) Voice filter circuit (28) Microprocessor (30) Launch circuit power controller (29) Receiving circuit power controller (43) Control circuit (44) Voice storage circuit (45) Speech determination circuit (41) Digital / analog conversion circuit (42) Analog / digital conversion circuit (58) Antenna (57) Filter circuit (56) Transmission / reception switching circuit (55) Frequency drop circuit (52), (54) Mixing circuit (53) Band pass circuit (51) Demodulation circuit (61) Frequency increase circuit (60) Modulation circuit ( 63) Low-pass circuit (59) Quartz vibrating circuit (64) Microphone control circuit (65), (74) Amplifier (66) Microphone (73) Speaker (72) Speaker control circuit (71) Identification code generation circuit (62) Noise filter Circuit (67) Voice filter circuit (68) Microprocessor (70) Launch circuit power controller (69) Receiver circuit power controller (B), (C), (D) Microphone amplifier circuit (E1), (E2), (E3) ), (Em) Voice storage address (V) Transmission / reception circuit control interface (8) Microphone Hong and the earphone (speaker)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-278426 (JP, A) JP-A 64-19822 (JP, A) JP-A-57-38037 (JP, A) JP-A-4- 311117 (JP, A) JP-A-6-152472 (JP, A) JP-A-6-276114 (JP, A) JP-A-52-133714 (JP, A) JP-A-62-86745 (JP, U) Japanese Utility Model Application Laid-open No. 52-40612 (JP, U) Japanese Utility Model Application Laid-open No. 3-90137 (JP, U) "CQ ham radio" Vol. 39, No. 8, published on August 1, 1984, pp. 379-383 (58) ) Surveyed field (Int.Cl. ⁷ , DB name) H04B 1/44 H04B 7/26

Claims (4)

(57) [Claims] 1. A first input is output first after a microphone amplifier circuit (B) and before a transmission / reception circuit (A) (First Input FirstOutput).
t; FIFO) voice storage circuit (44), and a control circuit (43)
An utterance determination circuit (45), a digital / analog conversion circuit (41), and an analog / digital conversion circuit (42) are combined, and the voice storage circuit (44) outputs a previously input signal first. And, when the recording of the voice storage reaches the end, return to the start address and overwrite the new data on the old data, to save the voice data constantly, in a transceiver error prevention device of the transceiver, The utterance determination circuit (45) has a variable value set at the time of production, compares it with the input voice data, activates or deactivates the correlation circuit, and provides a number of corresponding voice stages. A device for preventing a communication error of a transceiver, characterized in that a signal indicator is marked for use in a circuit at a rear end. 2. In order to enhance the judgment effect of the speech judgment circuit (45), two sets of microphone amplifier circuits are provided in the communication error prevention device, one set of which is another set of microphone amplifier circuits. 2. The communication error prevention device for a transceiver according to claim 1, wherein the microphone amplifier circuit is arranged so as to be closer to the mouth of the transmitter. 3. The control circuit (43), a voice storage circuit (44), an utterance determination circuit (45), a digital / analog conversion circuit (41), an analog / digital conversion circuit (42), a microphone, an earphone or a speaker, 2. The apparatus according to claim 1, wherein the transmission / reception circuit control interface can be combined into one independent unit to provide a conventional transceiver that does not need to hold the transceiver. 4. The control circuit (43) adds an “empty signal” before the emitted voice signal, and the “empty signal” corresponds to the intermittent time of the receiving circuit of the transmitting / receiving circuit. The power saving is performed by awakening the receiving circuit while avoiding time, reading voice data from the voice storing circuit (44), and firing the voice data from the firing circuit of the transmitting / receiving circuit (A). 2. The communication error prevention device for a transceiver according to claim 1.