JPS58152294A - Wireless voice input unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention The present invention provides a wireless voice-powered device, particularly a voice input device that can cope with fluctuations in voice due to continuous vocalization for a long period of time, sudden noise generation, etc. The present invention relates to a wireless voice human power device consisting of a pseudo voice generator combined with a wireless transmitter.

Conventional artIn this type of human voice-powered device, the input to the device has been affected by the fatigue of the speaker due to inputting voice over a long period of time, and by fluctuations in the voice due to sudden noises. If the audio input device becomes unavailable, especially if you are inputting remotely using a wireless microphone, return to the location where the audio input device is installed and perform manual or other input.

O Purpose of the Invention The present invention was made in order to eliminate the above-mentioned drawbacks, and its purpose is to input voice using a wireless microphone. In order to avoid situations in which input is not possible, a pseudo voice can be generated from a wireless transmitter by a simple operation without the need for a human to make a sound (always inputting a voice at all times). Our goal is to provide wireless voice devices for people.

According to this invention, when the input from the wireless microphone becomes difficult due to ambient noise, the system switches from the pronunciation by a human (If person) to the operation of a pseudo-single vocalization device by operating a switch. This makes it possible to always input reliable pseudo-speech into the speech input device, and to obtain an excellent recognition result.

Examples of the invention The present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a conventional example of a voice input device using a wireless input method, where 16 is a transmitter, 2 is a receiver, and 3 is a voice input device.

A microphone connected to a transmitter 1 converts human speech into an electrical signal and transmits it on a carrier wave, which receives it at a receiver 2 and reprocesses it into an audio signal, which is then input to an audio input device S. By the way, the audio signal input to the microphone fluctuates due to ambient noise, etc., and the input to the audio input device 3 fluctuates, making it impossible to perform accurate transcription.

FIG. 2 shows an embodiment of the present invention, in which the transmitter 1 in FIG. 1 is constructed according to the present invention. Here, 4 is a switch group, 5 is a sine wave generation circuit group, 6 is a read-only memory, F is a control circuit, a is a transmitting circuit, 9 is an analog switch group, 10
is a microphone, and 11 is a buffer amplifier. now,
When one of the switches in the switch group 4 is pressed, the corresponding word in the read-only memory 6 is read out by the controller circuit, and the required number of pulses is output from the sine wave generator circuit group 5 to the analog switch. 9 in time series and transmitted by a transmitting circuit 8. Since the combination order of the output time length and frequency of the sine wave generator circuit group is written in advance in the read-only memory 6, corresponding to each switch in the switch group number, By operating any III of the switch, it is possible to generate a pseudo audio signal corresponding to the switch. Further, as the sine wave generating circuit #5, for example, J! OOHz +
400Hz, 800Hz, 1600H+, SS2
A voice band frequency such as OOH, which generates a value that can be easily separated from each other in the voice input device, is used. In addition, the duration length of the same sine wave is 6
By setting the frequency range to 0 to 100 t, these time-series signals can be extracted as a clear spectrum by a frequency analysis section of an audio input device (not shown). Then, by registering in advance in the voice input device a huge number of pseudo voice signals similar to the speaker's word voice as a standard pattern and corresponding to any switch □ of switch group 4, the accepted pseudo voice It is designed to enable signal recognition.

Also, when inputting real voice audio, use microphone 1.
This is done via a route from 0 to transmitting circuit a via buffer amplifier 11. Note that an appropriate analog switch circuit (not shown) may be provided in order to enable switching between the signal from the microphone 1o and the signal from the sine wave generating circuit group 5 by an operator's switch operation. Furthermore, regarding the transmitting circuit 8, as well as the receiver 2 side, M or ? M
Any method may be used, and it can be arbitrarily configured using conventionally well-known circuits.

As described in detail, according to the present invention, a wireless voice input device can eliminate the need for human voice during voice input, and eliminate the problem of speaker fatigue caused by long-term input. There is kojimai, which can prevent voice input disturbances caused by sudden noise, and can always provide stable voice input. It is also possible for someone else to interrupt and use it while you are using it.

[Brief explanation of drawings]

FIG. 81 shows a conventional example of a voice input system using a wireless input method, and FIG. 1 shows an embodiment of the present invention. 11 Shield transmitter, a: Receiver 31 Voice input device, 4 Tomi Switch review, 5! Sine dredging! ! Eii circuit group, @: Read-only memory, 7; Control circuit jl, s' transmission circuit, 9; Ana-shida switch group, 108 Mitaro main, l
li buffer amplifier. Patent applicant: Hitachi, Ltd. Representative: Patent attorney Susuki 1) Interest 4”-・, (1)

Claims (1)

[Claims] It includes a microphone for inputting the real voice sound and a pseudo sound signal generating means, and by operating a switch means provided in a corresponding manner to the pseudo sound signal generating means, the pseudo sound signal is generated in place of the real voice sound. A wireless voice input device characterized in that input is performed remotely.
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