A dictation machine

Abstract

The application provides a sound recorder, which comprises a main body and a first recording module, the main body is internally provided with a signal receiving unit and a first audio collecting unit capable of collecting audio data; the first recording module is detachably connected with the main body; the first recording module comprises a first wireless transmission unit and a second audio collecting unit which are communicatively connected, and when the first recording module is separated from the main body, the first wireless transmission unit can be communicatively connected with the signal receiving unit to transmit the audio data collected by the second audio collecting unit to the main body; in this arrangement, the sound recorder can effectively improve the functional expansibility, scene adaptability and device collaborative interaction capability.

Description

Technical Field

[0001] This application relates to the field of recording equipment technology, specifically to a recording pen. Background Technology

[0002] With the rapid development of digital information processing technology, voice recorders, as the core equipment for audio information collection, have been widely used in various scenarios such as meeting recording, academic discussions, news interviews, and judicial evidence collection.

[0003] In related technologies, voice recorders generally adopt an integrated design, embedding functional units such as audio acquisition modules, data processing modules, storage modules, and power modules into a single housing structure. While this design ensures product integrity and portability, it has significant limitations in terms of functional expandability, scenario adaptability, and device collaboration capabilities. Utility Model Content

[0004] In view of this, this application provides a voice recorder, which includes a main body and a detachable first recording module, which can effectively improve the voice recorder's functional expandability, scene adaptability and device collaborative interaction capabilities.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A voice recorder includes:

[0007] The main body contains a signal receiving unit and a first audio acquisition unit capable of acquiring audio data.

[0008] A first recording module is detachably connected to the main body. The first recording module includes a first wireless transmission unit and a second audio acquisition unit that are connected in communication. When the first recording module is detached from the main body, the first wireless transmission unit can be connected in communication with the signal receiving unit to transmit the audio data acquired by the second audio acquisition unit to the main body.

[0009] Optionally, the main body is provided with a female connector capable of data transmission, and the first recording module has a male connector adapted to the female connector; and when the first recording module is connected to the main body, the male connector is connected to the female connector, so that the audio data collected by the second audio acquisition unit can be transmitted to the main body through the male connector and the female connector.

[0010] Optionally, the first recording module includes a first preprocessing unit, which is communicatively connected to both the second audio acquisition unit and the first wireless transmission unit. The first preprocessing unit is used to receive and preprocess audio data from the second audio acquisition unit and can transmit the preprocessed audio data to the first wireless transmission unit.

[0011] Optionally, the main body includes a power management unit, and the power management unit is electrically connected to the female connector;

[0012] The first recording module includes a first power supply, and the first power supply is electrically connected to the male connector; and when the male connector and the female connector are connected, the power management unit can charge the first power supply through the male connector and the female connector.

[0013] Optionally, a second recording module for call recording may also be included, the second recording module comprising:

[0014] The fixing unit can fix the second recording module to the communication device;

[0015] The third audio acquisition unit includes a bone conduction pickup module and is used to acquire audio data;

[0016] The second wireless transmission unit can communicate with the signal receiving unit to transmit the audio data collected by the third audio acquisition unit to the main body of the recorder.

[0017] Optionally, the third audio acquisition unit further includes a microphone pickup module, which works in conjunction with the bone conduction pickup module to synchronously acquire audio data.

[0018] Optionally, the second recording module includes a second preprocessing unit, which is communicatively connected to both the third audio acquisition unit and the second wireless transmission unit. The second preprocessing unit is used to receive and preprocess audio data from the third audio acquisition unit and can transmit the preprocessed audio data to the wireless transmission unit.

[0019] Optionally, the main body includes a power management unit and a spring pin electrically connected to the power management power supply; the second recording module includes a second power supply and an electrical contact electrically connected to the second power supply.

[0020] The second recording module can be fixedly connected to the main body through the fixing unit, and when the second recording module is fixedly connected to the main body, the electrical contact is electrically connected to the spring pin, so that the power management unit can charge the second power supply through the spring pin and the electrical contact.

[0021] Optionally, the fixing unit is a magnetic fixing unit.

[0022] Optionally, the main body includes a main control unit, which is communicatively connected to the signal receiving unit and is capable of controlling the signal receiving unit to connect to the first wireless transmission unit and / or the second wireless transmission unit.

[0023] This application provides a voice recorder whose first wireless transmission unit can establish a wireless connection with the main body and also with other mobile terminals (e.g., mobile phones). In this way, the audio data collected by the first recording module can be directly transmitted to the mobile terminal, thereby improving the voice recorder's collaborative interaction capabilities with other devices. During recording, the first audio acquisition unit located in the main body and the second audio acquisition unit located in the first recording module can be used simultaneously for audio data acquisition, or only one of them can be used for audio data acquisition. That is to say, the voice recorder in this embodiment has the following operating modes:

[0024] Working mode 1: Only the first audio acquisition unit is used for audio data acquisition. In this case, the first recording module can be connected to the main body or detached from the main body.

[0025] Working mode 2: Only the second acquisition unit in the first recording module is used for audio data acquisition. In this case, the audio data acquired by the first recording module can be transmitted to the main body and / or other mobile terminals as needed.

[0026] Operating Mode 3: Both the first and second audio acquisition units are used for audio data acquisition. In this mode, since the first recording module can remotely transmit audio data to the main body, the first recording module can acquire audio data at a distance from the main body. That is, this operating mode is suitable for application scenarios where the two sound sources are far apart.

[0027] In summary, the voice recorder in this embodiment has multiple working modes, which can be selected according to needs during use, thereby effectively improving the voice recorder's adaptability to different scenarios.

[0028] Furthermore, this embodiment features a first recording module capable of independently capturing audio. This module is smaller, easier to move and conceal, making it suitable for scenarios such as mobile recording, temporary deployment, and covert recording. Moreover, the first recording module employs an independent modular design, allowing each unit within it to be upgraded or replaced as needed without affecting the main unit. This modular design in this embodiment is more conducive to hardware upgrades.

[0029] In addition, since the first recording module includes a first wireless transmission unit, which can not only establish a wireless connection with the main body, it can also be used to establish a wireless connection with other mobile terminals (such as mobile phones). Thus, the audio data collected by the first recording module can be directly transmitted to the mobile terminal, thereby improving the collaborative interaction capability of the recorder with other devices. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] Figure 1 This is an exploded view of the voice recorder in the embodiments of this application;

[0032] Figure 2 This is a front view of the voice recorder in the embodiments of this application;

[0033] Figure 3 This is a bottom view of the first recording module in an embodiment of this application;

[0034] Figure 4 This is a top view of the first recording module in an embodiment of this application.

[0035] exist Figures 1-4 middle:

[0036] 1-Main body, 2-First recording module, 3-Second recording module;

[0037] 101 - First audio acquisition unit, 201 - Male connector, 202 - Second audio acquisition unit. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] With the rapid development of digital information processing technology, voice recorders, as core devices for audio information acquisition, have been widely used in various scenarios such as meeting minutes, academic seminars, news interviews, and judicial evidence collection. From a technological evolution perspective, the current market demand for recording equipment is shifting from single-function devices to multi-functional, integrated, and intelligent devices. Users not only require devices to have basic recording functions but also expect them to be able to quickly switch or expand specific functional modules according to different application scenarios, achieving efficient collaboration with other smart terminals.

[0040] However, voice recorder products in this field generally adopt an integrated architecture design based on a System-on-Chip (SoC). The device integrates a MEMS microphone array as the audio acquisition unit, and uses an application delivery controller (Analog-to-Digital Converter, ADC) module to convert analog audio signals into digital signals. The main control chip (such as an ARM architecture processor) is responsible for real-time processing, storage management, and communication control of the audio data. Built-in storage media (such as eMMC flash memory chips) are used for local data storage. For data transmission, wired data transmission is typically achieved through a Type-C interface, or wireless communication is achieved through Bluetooth or Wi-Fi modules. While some high-end products have speech-to-text functionality, they rely on the device's built-in AI processing unit or a cloud server for real-time transcription.

[0041] As mentioned above, voice recorders in related technologies generally adopt an integrated design, which integrates functional units such as audio acquisition modules, data processing modules, storage modules, and power modules into a single housing structure. While this design ensures product integrity and portability, it has significant limitations in terms of functional expandability, scenario adaptability, and device collaboration capabilities.

[0042] To address the aforementioned technical issues, this application provides a voice recorder. It includes a main body 1 and a detachable first recording module, which effectively improves the voice recorder's functional expandability, scene adaptability, and device collaborative interaction capabilities.

[0043] like Figure 1 and Figure 2 As shown, the voice recorder in this application includes a main body 1 and a first recording module 2.

[0044] The main body 1 is the basic structure of the voice recorder used to achieve audio recording.

[0045] In an exemplary embodiment, the main body 1 includes a main control unit, a storage unit, a communication unit, a power management unit, and a first audio acquisition unit 101, and is provided with a physical interface for charging and / or data transmission. Wherein:

[0046] The main control unit is responsible for task scheduling, data processing, and equipment control of the entire system.

[0047] The storage unit is used to store audio data. In practice, the storage unit can use eMMC standard storage chips, and the storage capacity can be expanded via SD cards.

[0048] The communication unit is the unit that enables data transmission between the main body 1 and other devices. These other devices include, but are not limited to, the first recording module 2 and the second recording module 3 mentioned below.

[0049] In an exemplary embodiment, the communication unit supports the BLE (Bluetooth Low Energy) protocol to optimize power consumption for connections between devices.

[0050] The power management unit is the power control unit of main body 1.

[0051] The first audio acquisition unit 101 is a structure integrated inside the main body 1 for acquiring audio. That is to say, the main body 1 in this embodiment itself has functions such as audio acquisition and storage.

[0052] In an exemplary embodiment, the first audio acquisition unit 101 includes a high-sensitivity MEMS microphone.

[0053] Regarding the number of high-sensitivity MEMS microphones, the design can be adapted as needed during implementation, and this application does not impose a specific limitation on this. For example, it can be one, two, or even six microphones.

[0054] The first recording module 2 is an audio acquisition structure in the recorder that can be used independently of the main body 1.

[0055] The first recording module 2 is detachably connected to the main body 1.

[0056] The first recording module 2 and the main body 1 can be detachably connected via a snap-fit ​​structure. For example, the first recording module 2 can be detachably connected to the main body 1 via a spring-loaded snap-fit ​​structure. Of course, the above-mentioned connection method between the first recording module 2 and the main body 1 is not a limitation of this application. In specific implementations, the first recording module 2 and the main body 1 can also be connected via a threaded quick-release structure or a magnetic quick-release structure, etc.

[0057] like Figure 4 As shown, the first recording module 2 includes a second audio acquisition unit 202 and a first wireless transmission unit (not shown in the figure).

[0058] The second audio acquisition unit 202 is used to acquire audio signals.

[0059] In an exemplary embodiment, the second audio acquisition unit 202 may include an electret microphone and a converter chip. During recording, the electret microphone, in conjunction with the converter chip, enables 32-bit / 96kHz high-resolution audio sampling.

[0060] The number of electret microphones can be adapted to meet specific needs, and this application does not impose any specific limitations on this. For example, the number of electret microphones can be two, three, etc.

[0061] The first wireless transmission unit is used for wireless transmission of audio signals.

[0062] The first wireless transmission unit is communicatively connected to the second audio acquisition unit 202. When the first recording module 2 is detached from the main body 1, the first wireless transmission unit can communicate with the signal receiving unit of the main body 1. In this way, after the audio signal acquired by the second audio acquisition unit 202 is transmitted to the first wireless transmission unit, the first wireless transmission unit can transmit it to the main body 1 through the signal receiving unit of the main body 1, thereby enabling the audio data acquired by the second audio acquisition unit 202 to be transmitted to the main body 1.

[0063] The first wireless transmission unit can be a Bluetooth transmission unit or a Wi-Fi transmission unit. This application does not make specific limitations, but it should be ensured that the first wireless transmission unit is compatible with the signal receiving unit of the main body. For example, when the signal receiving unit is a Bluetooth module, the first wireless transmission unit should also include a Bluetooth module.

[0064] In an exemplary embodiment, both the signal receiving unit and the first wireless transmission unit may include a Bluetooth 5.2 module and support the A2DP audio streaming protocol.

[0065] Furthermore, it should be noted that the first wireless transmission unit and the second audio acquisition unit 202 can be directly connected, that is, the first wireless transmission unit and the second audio acquisition unit 202 can be directly communicatively connected. Alternatively, an intermediate structure can be provided between the first wireless transmission unit and the second audio acquisition unit 202, and the two can be communicatively connected through the intermediate structure. For example, the intermediate structure can be the first preprocessing unit mentioned below.

[0066] It should also be noted that, in addition to establishing a wireless connection with the main body 1, the first wireless transmission unit can also be used to establish a wireless connection with other mobile terminals (such as mobile phones). In this way, the audio data collected by the first recording module 2 can be directly transmitted to the mobile terminal, thereby improving the collaborative interaction capability of the recorder with other devices.

[0067] When recording with the above-described voice recorder, the first audio acquisition unit 101 located in the main body 1 and the second audio acquisition unit 202 located in the first recording module 2 can be used simultaneously for audio data acquisition, or only one of them can be used for audio data acquisition. In other words, the voice recorder in this embodiment has the following operating modes:

[0068] Working mode 1: Only the first audio acquisition unit 101 is used for audio data acquisition. At this time, the first recording module 2 can be connected to the main body 1 or disconnected from the main body 1.

[0069] Working mode 2: Only the second acquisition unit in the first recording module 2 is used for audio data acquisition. In this case, the audio data acquired by the first recording module 2 can be transmitted to the main body 1 and / or other mobile terminals as needed.

[0070] Operating Mode 3: Both the first audio acquisition unit 101 and the second audio acquisition unit 202 are used for audio data acquisition. In this mode, since the first recording module 2 and the main body 1 can achieve remote transmission of audio data, the first recording module 2 can acquire audio data at a location far from the main body 1. That is, this operating mode is suitable for application scenarios where the two sound source locations are far apart.

[0071] In summary, the voice recorder in this embodiment has multiple working modes, which can be selected according to needs during use, thereby effectively improving the voice recorder's adaptability to different scenarios.

[0072] Furthermore, this embodiment features a first recording module 2 capable of independently capturing audio. This module is smaller, easier to move and conceal, making it suitable for scenarios such as mobile recording, temporary deployment, and covert recording. Moreover, the first recording module 2 employs an independent modular design, allowing each unit within it to be upgraded or replaced as needed without affecting the main body 1. This modular design in this embodiment is more conducive to hardware upgrades.

[0073] In some embodiments, such as Figure 1 and Figure 3 As shown, the main body 1 is provided with a female connector (not shown in the figure) that can be used for data transmission, and the first recording module 2 has a male connector 201 that is adapted to the female connector.

[0074] In an exemplary embodiment, the female connector on the main body 1 is a Type-C interface, and the male connector 201 on the first recording module 2 is a Type-C male connector; and it supports the USB Audio Class Protocol (i.e., UAC protocol). Of course, this is not intended to limit this application. For example, the female connector can also be a USB 3.1 interface, in which case the male connector 201 is a USB 3.1 male connector.

[0075] In an exemplary embodiment, the male connector 201 is retractably disposed in the first recording module 2. This allows the male connector 201 to retract into the first recording module 2 when the male and female connectors are not needed. This reduces physical damage to the male connector 201 caused by accidental impacts and ensures a stable and reliable connection when the female connector is needed for recording. Furthermore, retracting the male connector 201 into the first recording module 2 makes the module 2 appear neater and more compact, thus facilitating portability and storage.

[0076] Furthermore, when the first recording module 2 is connected to the main body 1, the male connector 201 is connected to the female connector, so that the audio data collected by the second audio acquisition unit 202 can be transmitted to the main body 1 through the male connector 201 and the female connector. That is to say, in this embodiment, the first recording module 2 and the main body 1 also have a wired connection mode. In this mode, the data transmission between the first recording module 2 and the main body 1 is more stable and faster, thus making the voice recorder in this embodiment suitable for long-term, high-data-volume recording scenarios.

[0077] In some embodiments, the first recording module 2 includes a first preprocessing unit.

[0078] The first preprocessing unit is communicatively connected to the second audio acquisition unit 202 and is used to preprocess the audio data acquired by the second audio acquisition unit 202. In this way, the audio data acquired by the second audio acquisition unit 202 is first preprocessed by the first preprocessing unit before being transmitted to the main body 1, which is more conducive to improving the recording effect.

[0079] In an exemplary embodiment, the first preprocessing unit includes a digital signal processing chip (i.e., a DSP chip) to process audio data in real time, thereby achieving real-time noise reduction and echo cancellation, which improves the recording effect. Furthermore, the DSP chip can also compress the audio (supporting multiple formats such as MP3, WAV, and FLAC), thus reducing the space occupied by the audio data in the storage unit of the main body 1.

[0080] Furthermore, the first preprocessing unit is communicatively connected to the first wireless transmission unit.

[0081] During the recording process, the audio data acquired by the second audio acquisition unit 202 is transmitted to the first preprocessing unit. The first preprocessing unit preprocesses the audio data and then transmits the preprocessed audio data to the first wireless transmission unit, thereby enabling the preprocessed audio data to be transmitted to the main body 1 wirelessly.

[0082] In some embodiments, the main body 1 includes a power management unit.

[0083] The power management unit includes a main body power supply and an intelligent power management chip.

[0084] In an exemplary embodiment, the power source for the main body 1 is a lithium polymer battery; however, this is not intended to limit the scope of this application, and the type of power source for the main body 1 can be adapted as needed. Exemplarily, the power source for the main body 1 can also be a composite power system, such as a composite power system formed by combining a lithium polymer battery and a dry cell battery.

[0085] The intelligent power management chip is responsible for the power supply, distribution, monitoring and protection of the main body 1.

[0086] The main body 1 includes a power management unit, and the power management unit is electrically connected to the female connector;

[0087] In an exemplary embodiment, the female connector provided on the main body 1 is a Type-C interface, which, in addition to the data transmission function mentioned above, also supports the PD fast charging protocol. Thus, the female connector in the main body 1 can be used to charge the power supply of the main body 1.

[0088] In addition, the first recording module 2 includes a first power supply.

[0089] The specific type of the first power source can be referred to the power source of the main body 1 mentioned above, and will not be repeated here. However, it should be noted that this does not mean that the first power source and the power source of the main body 1 are necessarily the same. For example, the power source of the main body 1 can be a high-voltage fast-charging lithium battery, while the first power source can be a standard capacity lithium battery.

[0090] Furthermore, the first power source is electrically connected to the male connector 201. And, when the male connector 201 and the female connector are connected, the power management unit can charge the first power source through the male connector 201 and the female connector.

[0091] In other words, the intelligent power management chip in the power management unit can control the main body 1 power supply to reverse charge other power supplies. This makes it more convenient to charge the first recording module 2, and thus the capacity of the first power supply does not need to be very large, which is conducive to the miniaturization of the first recording module 2.

[0092] In some embodiments, the voice recorder further includes a second recording module 3.

[0093] The second recording module 3 is particularly suitable for scenarios involving call recording. In other words, this second recording device is suitable for scenarios where recording is required when communicating using a communication device. The aforementioned communication device can be a mobile phone, walkie-talkie, etc. For ease of description, the following explanation uses a mobile phone as an example.

[0094] Understandably, when a phone is in earpiece mode during a call, the volume is relatively low. In this case, if a voice recorder is needed to record the call, ambient noise will have a significant impact on the recording quality and may even cause the recording to fail.

[0095] Based on the above problems, in some embodiments, the second recording module 3 includes a fixing unit, a third audio acquisition unit, and a second wireless transmission unit.

[0096] The fixing unit is used to fix the second recording module 3 to the communication device.

[0097] The third audio acquisition unit is used to acquire audio data. In this embodiment, the third audio acquisition unit includes a bone conduction pickup module, which realizes call audio acquisition through contact vibration transmission. In this way, the interference of environmental noise can be effectively avoided, thereby ensuring the recording effect.

[0098] In an exemplary embodiment, the bone conduction pickup module includes a piezoelectric bone conduction sensor.

[0099] In practical implementation, the number of piezoelectric bone conduction sensors can be adjusted adaptively as needed, and this application does not impose specific limitations on this.

[0100] The second wireless transmission unit is communicatively connected to the third audio acquisition unit. In this way, the audio data acquired by the third audio acquisition unit can be transmitted to the second wireless transmission unit, and then transmitted from the second wireless transmission unit to the main body 1.

[0101] The second wireless transmission unit can be a Bluetooth transmission unit or a Wi-Fi transmission unit. This application does not make specific limitations here, but it should be ensured that the second wireless transmission unit is compatible with the signal receiving unit of the main body. For example, when the signal receiving unit is a Bluetooth module, the second wireless transmission unit should also include a Bluetooth module.

[0102] In an exemplary embodiment, both the second wireless transmission unit and the signal receiving unit of the main body 1 are Bluetooth modules and support the Bluetooth 5.0 protocol, so that a stable SBC audio transmission channel can be established between the second recording module 3 and the main body 1.

[0103] Understandably, bone conduction microphone modules have low sensitivity to air vibrations, resulting in poor performance when capturing user audio. Therefore, in some embodiments, the third audio acquisition unit further includes a microphone module, which works in conjunction with the bone conduction microphone module to synchronously acquire audio data. This effectively improves the recording quality of the second recording module 3.

[0104] In an exemplary embodiment, the microphone pickup module includes a high-sensitivity MEMS microphone.

[0105] Regarding the number of MEMS microphones, in specific implementation, one or more can be set as needed, and this application does not make a specific limit on this.

[0106] Furthermore, it should be noted that in this embodiment, the second recording module 3 includes a microphone pickup module, enabling it to capture the user's voice. This allows the recorder in this embodiment to capture sounds from three relatively distant locations in cooperation with the main body 1, the first recording module 2, and the second recording module 3, while ensuring recording quality. This undoubtedly expands the recorder's applicability and improves its recording performance.

[0107] Similarly, the second wireless transmission unit and the third audio acquisition unit can be directly connected, or an intermediate structure can be set between them, with the two communicating through the intermediate structure. For example, the intermediate structure can be the second preprocessing unit described below.

[0108] In some embodiments, the second recording module 3 includes a second preprocessing unit.

[0109] The second preprocessing unit is communicatively connected to both the third audio acquisition unit and the second wireless transmission unit; the second preprocessing unit is used to receive and preprocess audio data from the third audio acquisition unit, and can transmit the preprocessed audio data to the third wireless transmission unit.

[0110] Unlike the first preprocessing unit described above, the second preprocessing unit in this embodiment has a built-in low-power audio processing chip, which can filter, amplify, and digitally convert bone conduction signals to improve the recording effect of the second recording module 3.

[0111] In some embodiments, the main body 1 includes a power management unit and a spring pin.

[0112] The specific settings for the power management unit can be found above and will not be repeated here.

[0113] The spring pin is electrically connected to the power management unit.

[0114] The second recording module 3 includes a second power supply and electrical contacts electrically connected to the second power supply.

[0115] The configuration of the second power supply can be referenced from that of the first power supply described above, and will not be repeated here. Of course, this does not mean that the second power supply must be the same as the first power supply. That is, in specific implementation, the first power supply and the second power supply may be the same or different, and this application does not make any specific restrictions on this.

[0116] Furthermore, the second recording module 3 can be fixedly connected to the main body 1 via a fixing unit. That is, in this embodiment, the second recording module 3 and the main body 1 can also be detachably connected. Moreover, the second recording module uses a fixing unit to connect to the main body 1 or the communication device, which helps to reduce the number of fixing structures, thereby simplifying the structure and reducing costs.

[0117] Furthermore, when the second recording module 3 is fixedly connected to the main body 1, the electrical contacts are electrically connected to the spring pins, so that the power management unit can charge the second power supply through the spring pins and electrical contacts. In this way, charging the second recording module 3 is more convenient, thereby reducing the need for a large capacity of the second power supply and facilitating the miniaturization of the second recording module 3.

[0118] Furthermore, given that the aforementioned fixing unit needs to both securely connect the main body 1 and the second recording module 3, and also connect the communication device and the second recording module 3, considering that the sizes of different communication devices vary, in some embodiments, the fixing unit is a magnetic fixing unit. This not only avoids the problem of insecure fixing due to device size mismatch, reduces noise caused by device shaking during recording, and improves recording quality, but also greatly improves the efficiency of installation and disassembly. Users can quickly complete the connection simply by bringing the communication device close to the magnetic fixing unit, without cumbersome operating steps, thus improving the user experience.

[0119] It is understood that, as described above, in some embodiments, the voice recorder includes both a first recording module 2 and a second recording module 3. Based on this structure, to avoid mutual interference between different recording modules and ensure recording quality, the main body 1 includes a main control unit. The main control unit is communicatively connected to the signal receiving unit and can be used to control the signal receiving unit to connect to the first wireless transmission unit and / or the second wireless transmission unit.

[0120] More specifically, when both the first recording module 2 and the second recording module 3 are connected to the main body 1, the first recording module 2 transmits audio signals to the main body 1 through the male connector 201 and the female connector, and the second recording module 3 is in a sleep state. At this time, the main control unit control signal receiving unit is not connected to either the first wireless transmission unit or the second wireless transmission unit.

[0121] When only the first recording module 2 is separated from the main body 1, the main control unit controls the signal receiving unit to connect to the first wireless transmission unit.

[0122] When only the second recording module 3 is separated from the main body 1, the main control unit controls the signal receiving unit to connect to the second wireless transmission unit.

[0123] When both the first recording module 2 and the second recording module 3 are separated from the main body 1, the main control unit controls the signal receiving unit to connect to both the first wireless transmission unit and the second wireless transmission unit simultaneously, and can manually control the signal receiving unit to receive audio data from the first wireless transmission unit and / or audio data from the second wireless transmission unit.

[0124] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0125] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0126] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0127] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0128] It should be understood that the qualifiers “first,” “second,” “third,” “fourth,” “fifth,” and “sixth” used in the description of the embodiments of this application are only used to more clearly illustrate the technical solutions and are not intended to limit the scope of protection of this application.

[0129] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations therein.

Claims

1. A voice recorder, characterized in that, include: The main body contains a signal receiving unit and a first audio acquisition unit capable of acquiring audio data. A first recording module is detachably connected to the main body. The first recording module includes a first wireless transmission unit and a second audio acquisition unit that are connected in communication. When the first recording module is detached from the main body, the first wireless transmission unit can be connected in communication with the signal receiving unit to transmit the audio data acquired by the second audio acquisition unit to the main body.

2. The digital voice recorder according to claim 1, wherein The main body is provided with a female connector for data transmission, and the first recording module has a male connector adapted to the female connector; and when the first recording module is connected to the main body, the male connector is connected to the female connector so that the audio data collected by the second audio acquisition unit can be transmitted to the main body through the male connector and the female connector.

3. The voice recorder according to claim 1, characterized in that, The first recording module includes a first preprocessing unit, which is communicatively connected to both the second audio acquisition unit and the first wireless transmission unit. The first preprocessing unit is used to receive and preprocess audio data from the second audio acquisition unit and can transmit the preprocessed audio data to the first wireless transmission unit.

4. The voice recorder according to claim 2, characterized in that, The main body includes a power management unit, and the power management unit is electrically connected to the female connector; The first recording module includes a first power supply, and the first power supply is electrically connected to the male connector; and when the male connector and the female connector are connected, the power management unit can charge the first power supply through the male connector and the female connector.

5. The dictation recorder according to any one of claims 1 to 4, characterized in that It also includes a second recording module for call recording, the second recording module comprising: The fixing unit can fix the second recording module to the communication device; The third audio acquisition unit includes a bone conduction pickup module and is used to acquire audio data; The second wireless transmission unit can communicate with the signal receiving unit to transmit the audio data collected by the third audio acquisition unit to the main body of the recorder.

6. The voice recorder according to claim 5, characterized in that, The third audio acquisition unit also includes a microphone pickup module, which works in conjunction with the bone conduction pickup module to synchronously acquire audio data.

7. The voice recorder according to claim 5, characterized in that, The second recording module includes a second preprocessing unit, which is communicatively connected to both the third audio acquisition unit and the second wireless transmission unit. The second preprocessing unit is used to receive and preprocess audio data from the third audio acquisition unit and can transmit the preprocessed audio data to the second wireless transmission unit.

8. The voice recorder according to claim 5, characterized in that, The main body includes a power management unit and a spring pin electrically connected to the power management power supply; the second recording module includes a second power supply and an electrical contact electrically connected to the second power supply. The second recording module can be fixedly connected to the main body through the fixing unit, and when the second recording module is fixedly connected to the main body, the electrical contact is electrically connected to the spring pin, so that the power management unit can charge the second power supply through the spring pin and the electrical contact.

9. The voice recorder according to claim 8, characterized in that, The fixing unit is a magnetic fixing unit.

10. The voice recorder according to claim 5, characterized in that, The main body includes a main control unit, which is communicatively connected to the signal receiving unit and is capable of controlling the signal receiving unit to connect to the first wireless transmission unit and / or the second wireless transmission unit.

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