WO2021134548A1

WO2021134548A1 - Mobile device-based voice recorder

Info

Publication number: WO2021134548A1
Application number: PCT/CN2019/130691
Authority: WO
Inventors: 李庆远
Original assignee: 李庆远
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-07-08

Abstract

Disclosed in the present invention is a mobile device-based voice recorder. The functions of speech to text transcription and text-based search are achieved by means of a microphone connected to a mobile phone or a tablet computer.

Description

Recording device based on mobile equipment

Field of invention

The invention relates to a recording device based on a mobile device, and in particular to a recording device that realizes voice transcription and text search through a microphone connected to a mobile phone or a tablet computer.

Background technique

Modern smart phones integrate more and more functions, and these functions are becoming more and more powerful, even surpassing and replacing many dedicated devices. For example, smart phones have completely replaced the card-type camera to take pictures, and some functions even surpass SLRs, such as super night scenes, such as artificial intelligence (AI) photography, such as intelligent image recognition (typical applications such as text translation). However, due to volume and battery energy density limitations (for example, projectors, even if the optical components can be made small, the existing batteries cannot support long-term use), modern smart phones will make the public demand better and better, and can be used alone. It satisfies most users, but cannot completely replace all professional equipment, such as professional recording pens.

Mobile phones are used for short distances, and the sound pickup range is limited. Professional recorders with directional microphones and array microphones have a pickup range of up to 15 meters. However, traditional recorders lack functions such as AI noise reduction, voice transcription and text search. Features. AI noise reduction can still be achieved by integrating a dedicated chip, and for complex AI such as voice input, the current technology also needs to be connected to the Internet to achieve a recognition rate close to the usable. In addition, due to the rapid development of AI technology and the rapid progress of embedded chip processing capabilities, the dedicated chip integrated in the traditional voice recorder will soon become obsolete, and the traditional voice recorder lacks the ability to connect to the Internet and obtain cloud computing resources, which makes this development direction It seems very tasteless, so its market is shrinking.

There is a smart phone-based smart recorder on the market, which is equivalent to a smart phone with integrated directional microphone and array microphone removed from the communication baseband. It contains the Android smart phone operating system, which can be installed and updated on the Internet. As a professional device, its price is close Domestic flagship mobile phone.

Summary of the invention

It is conceivable that the recording device connected to an idle mobile phone can realize the functions of voice transcription and text search. The recording device can be directly plugged into the data port of an idle mobile phone, or connected to the mobile phone wirelessly, and can even broadcast one-to-many through a custom protocol, such as common news conferences and classrooms. The technical conditions allow it, and it is not necessary to configure each receiver The respective recording device. Because there is only one copy of the data sent, precious bandwidth and spectrum resources will not be wasted. The recording device can be equipped with batteries, and can also be powered by power or wireless. If the recording device is wirelessly connected to an idle mobile phone, ordinary microphones can be used to reduce costs.

However, it should be understood that the content of the present invention may not include all aspects and embodiments of the present invention. The content of the present invention is not meant to be restricted or restricted in any way, and the present invention disclosed herein will be understood by one of the following: The technical staff includes obvious improvements and modifications.

Detailed ways

The present invention will now be described more fully hereinafter. However, the present invention can be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. Hopefully, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

It should be understood that various changes can be made to the function and arrangement of elements without departing from the spirit and scope set forth in the appended claims. Therefore, the embodiments are examples or implementations of the present invention, rather than the only implementations. The various appearances of "one embodiment," "an embodiment," or "some embodiments" do not necessarily all refer to the same embodiment. Although various features of the invention may be described in the context of a single embodiment, the features may also be provided individually or in any suitable combination. Conversely, although the invention may be described herein in the context of separate embodiments for the sake of clarity, the invention may also be implemented in a single embodiment or any combination of embodiments.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of related technologies and the present disclosure, and will not be interpreted as idealized or excessive The formal meaning, unless explicitly defined as such in this article.

Reference terms such as "left", "right", "upper", "lower", "front" and "rear" are intended to be used in the implementation of the present invention in relation to the specific features, structures or elements in the depicted embodiment example. Obviously, such directional terms regarding the actual use of the device have no specific meaning, because the device can be used by a user or multiple users in multiple directions.

The embodiment of the present invention mainly describes a recording device based on a mobile phone. However, the embodiments of the present invention are not limited to mobile phones. For example, other mobile devices (such as tablet computers) can also use the recording device described below.

Compared with the smart phone professional recording equipment that removes the communication baseband and integrates directional microphones and array microphones, the embodiments of the present invention include universal mobile devices, supporting mobile applications, and various directional and array microphones, any with an open operating system ( For example, Android) mobile devices can record, transcribe into text, locate and play recordings at the corresponding location as long as they have installed supporting mobile applications and connected to a microphone. This can reduce costs, utilize idle devices, and save earth resources.

If the mobile device and the microphone transmit data through wireless communication, bandwidth needs to be considered. Bluetooth technology provides sufficient sound quality through aptX compression technology. For one-to-many applications, such as classrooms and press conferences, if each user uses a pair of microphones and mobile devices to record, it will cause wireless signals to interfere with each other. It is also the repetition of the same recording data and the waste of bandwidth and frequency spectrum. The goal of broadcasting and sharing most of the bandwidth can be achieved through a private protocol. Only when individual data packets are unavailable, do they need to be retransmitted.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Various changes and modifications according to the claims and specification of the present disclosure are still within the scope of the claimed invention. In addition, each embodiment and claims may not include all the disclosed advantages or special tightening mechanical clamping properties. In addition, the abstract and title are only used to facilitate searching of patent documents and are not intended to limit the scope of the claimed invention in any way.

Claims

A recording device, including: one or more microphones, a mobile application and one or more mobile devices, has the following characteristics: the microphone can be connected to the mobile device, and through the built-in mobile device The mobile application performs recording. The mobile application calls the voice recognition input method, and transcribes the voice into text while recording. When the user clicks on part of the text, the recording at the corresponding position is played.
The recording device according to claim 2, which has the following characteristics: the microphone can be disconnected from the mobile device, and then connected to any mobile device; as long as the connected mobile device has the mobile application installed, You can record, transcribe into text, locate and play the recording at the corresponding position through text.
A recording device, including: one or more microphones, a mobile application and one or more mobile devices, has the following characteristics: the microphone can be connected to the mobile device, and through the built-in mobile device The mobile application performs recording. The mobile application calls the voice recognition input method, and transcribes the voice into text while recording. When the user clicks on part of the text, the recording at the corresponding position is played.
The recording device according to claim 3, which has the following characteristics: the microphone can be disconnected from the mobile device, and then connected to any mobile device; as long as the connected mobile device has the mobile application installed, You can record, transcribe into text, locate and play the recording at the corresponding position through text.
The recording device according to claim 3, which has the following characteristics: the microphone can be connected to the data interface of the mobile device.
A recording device, including: one or more microphones, a mobile application and one or more mobile devices, has the following characteristics: the microphone can be connected to the mobile device, and through the built-in mobile device The mobile application performs recording. The mobile application calls the voice recognition input method, and transcribes the voice into text while recording. When the user clicks on part of the text, the recording at the corresponding position is played.
The recording device according to claim 6, having the following characteristics: the microphone can be disconnected from the mobile device, and then connected to any mobile device; as long as the connected mobile device is installed with the mobile application, You can record, transcribe into text, locate and play the recording at the corresponding position through text.
7. The recording device of claim 6, having the following characteristics: the microphone is connected to the mobile device through wireless communication.
A recording device, including: one or more microphones, a mobile application and one or more mobile devices, has the following characteristics: the microphone can be connected to the mobile device, and through the built-in mobile device The mobile application performs recording. The mobile application calls the voice recognition input method, and transcribes the voice into text while recording. When the user clicks on part of the text, the recording at the corresponding position is played.
The recording device according to claim 9, having the following characteristics: the microphone can be disconnected from the mobile device, and then connected to any mobile device; as long as the connected mobile device has the mobile application installed, it You can record, transcribe into text, locate and play the recording at the corresponding position through text.
9. The recording device of claim 9, having the following characteristics: the microphone is connected to the mobile device through wireless communication.
9. The recording device according to claim 9, having the following characteristics: the microphone can be connected to a plurality of the mobile devices at the same time, and the mobile device can receive the wireless broadcast data sent by the microphone as long as the mobile application is installed, A plurality of the mobile devices can share most of the wireless broadcast data without sending wireless data to each of the mobile devices in turn.