Multifunctional magnetic tape recording and radio equipment

Abstract

This utility model discloses a multifunctional magnetic tape recording and radio device, including a housing, a core module, a control circuit board, a power supply module, audio output and acquisition components, and an operating interface. The control circuit board integrates a signal processing unit, a radio unit, and a power amplifier unit. Its core feature is that the signal processing unit can be configured to selectively receive broadcast audio signals from the radio unit or ambient audio signals from the microphone in magnetic tape recording mode, and record them onto the magnetic tape via the magnetic head, thereby achieving one-click direct recording of broadcast programs. The device also integrates a voice activation control unit, which can automatically start and stop recording based on the ambient sound level, and supports dual-mode power supply from batteries and external power sources. This utility model solves the problems of traditional devices having limited functionality and cumbersome operation, highly integrating radio, recording, and playback functions, and has the advantages of compact structure, intelligent operation, and strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of consumer electronics technology, specifically to a multi-functional audio device that integrates tape playback, tape recording, and AM / FM radio functions. Background Technology

[0002] Cassette players and radios, as classic audio devices, once held an important position in the consumer electronics field. Traditional cassette players typically had basic functions such as playback, recording, fast forward, and rewind, and their recording sources were generally limited to external ambient sounds captured by a built-in microphone. Traditional radios, on the other hand, focused on receiving and playing broadcast signals on AM / FM frequency bands.

[0003] Currently, there are some devices on the market that attempt to combine tape playback with radio functionality. For example, a common approach is to add a radio module to a tape player, allowing users to listen to the radio or play tapes. However, the integration of these devices is usually low; the two functions are physically and logically independent, and are simply treated as two separate components combined into the same housing.

[0004] Existing cassette players and radios suffer from low functional integration and limited practicality. Most combined devices simply combine radio and cassette playback functions, with recording capabilities limited to ambient sound from the microphone. This means users cannot directly record listening programs (such as favorite music, important news, or foreign language lessons) onto cassette tape with a single click, thus losing the core and most practical value of combining a radio and a recorder. Users often need complex methods, such as external wiring, to record broadcast content, making the process cumbersome and significantly impacting the user experience.

[0005] Therefore, there is an urgent need in this field for a multifunctional integrated device that can directly record broadcast signals onto magnetic tape, thereby achieving an efficient fusion of radio reception and magnetic tape recording functions. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a multi-functional magnetic tape recording and radio device that is compact in structure and easy to operate. It can achieve a high degree of integration of multiple functions such as direct recording of broadcast signals, recording of ambient sound, playback of magnetic tape and radio.

[0007] To achieve the above objectives, embodiments of this utility model provide a multifunctional magnetic tape recording and receiving device, including a housing, a mechanism module disposed within the housing, a control circuit board, a power module, an audio output component, and an operating interface disposed on the surface of the housing. The mechanism module includes a motor, a magnetic head, and a magnetic tape compartment. It also includes an audio acquisition component, disposed on the housing, for acquiring audio signals from the surrounding environment; the control circuit board is electrically connected to the power module, and the control circuit board integrates: a signal processing unit, electrically connected to the mechanism module, the audio output component, the operation interface, and the audio acquisition component, respectively, and the signal processing unit is configured to process recording and playback signals; a radio unit, electrically connected to the signal processing unit, for receiving AM / FM frequency bands; a power amplifier unit, electrically connected to the signal processing unit and the audio output component, for outputting audio; the operation interface includes tape operation keys for controlling tape operation and tuning components for controlling the radio unit; the device's operating modes include tape recording mode, tape playback mode, and radio mode; wherein, in the tape recording mode, the signal processing unit is configured to selectively receive audio signals from the radio unit or the audio acquisition component, and record the audio signals to the tape through the magnetic head.

[0008] Furthermore, as a more preferred embodiment of this utility model, the control circuit board integrates a voice activation control unit, which is electrically connected to the audio acquisition component and the signal processing unit, and is configured to automatically trigger the start or pause of the tape recording mode based on the level value of the ambient sound signal acquired by the audio acquisition component.

[0009] Furthermore, as a more preferred embodiment of the present invention, the voice activation control unit includes a comparison circuit for comparing the level value of the ambient sound signal with a preset threshold, and outputting a control signal to the signal processing unit and the motor drive circuit of the mechanism module based on the comparison result.

[0010] Furthermore, as a more preferred embodiment of this utility model, the audio acquisition component includes a microphone built into the housing.

[0011] Furthermore, as a more preferred embodiment of this utility model, a battery compartment is provided inside the housing; the power module includes a battery pack and an external power interface, the battery pack is adapted to the battery compartment and can be accommodated in the battery compartment, and the control circuit board also integrates a power management unit for switching and regulating the power supply from the battery and the external power input from the external power interface.

[0012] Furthermore, as a more preferred embodiment of this utility model, the battery pack is configured with two AA batteries, and the external power interface includes one or more of Micro USB and USB-C interfaces.

[0013] Furthermore, as a more preferred embodiment of the present invention, the audio output component includes a built-in speaker and a headphone jack, and the power amplifier unit is configured to automatically switch the output path according to whether headphones are connected to the headphone jack.

[0014] Furthermore, as a more preferred embodiment of this utility model, the operation interface also includes a mode switching switch for switching between the tape recording mode, tape playback mode and radio mode.

[0015] Furthermore, as a more preferred embodiment of the present invention, the signal processing unit includes a preamplifier circuit for preamplifying the recording signal and a playback equalization amplifier circuit for equalization compensation of the playback signal.

[0016] Furthermore, as a more preferred embodiment of the present invention, the housing includes a main body and a flip cover rotatably connected to one end of the main body, the magnetic tape compartment is disposed on the main body, and the flip cover is used to cover the magnetic tape compartment.

[0017] Furthermore, as a more preferred embodiment of this utility model, the flip cover is provided with a slot, which is used to insert a magnetic tape when the flip cover is open; and the magnetic tape is housed in the magnetic tape compartment when the flip cover is closed.

[0018] Furthermore, in a more preferred embodiment of this utility model, the flip cover is provided with an audio playback window, and at least a portion of the audio output component is correspondingly disposed at the audio playback window. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0020] Figure 1 This is a schematic diagram of the overall structure of the multi-functional magnetic tape recording and radio device in the embodiment, in an exploded state.

[0021] Figure 2 This is a functional principle structure block diagram of the multifunctional magnetic tape recording and radio device in the embodiment;

[0022] Figure 3 This is a schematic diagram of the flip-top open state of the multi-functional magnetic tape recording and radio device in the embodiment;

[0023] Figure 4This is a schematic diagram of the flip-top closed state of the multi-functional magnetic tape recording and radio device in the embodiment;

[0024] Figure 5 This is a schematic diagram of the back structure of the multifunctional magnetic tape recording and radio device in the embodiment;

[0025] Explanation of reference numerals in the attached figures:

[0026] 1-House, 11-Main body, 12-Flip cover, 121-Slot, 122-Audio playback window, 2-Motor module, 21-Motor, 22-Magnetic head, 23-Tape tray, 3-Control circuit board, 4-Power module, 41-Battery compartment, 42-Battery pack, 43-External power interface, 5-Audio output component, 51-Built-in speaker, 52-Headphone jack, 6-Audio acquisition component, 61-Microphone, 7-Operation interface, 71-Tape operation key, 72-Tuning component, 73-Mode switching switch. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the 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.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0031] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0032] Example

[0033] This embodiment aims to address the problems of low functional integration and limited practicality in existing audio devices that combine tape players and radios. Their recording function can only record ambient sound from the microphone; users cannot directly and easily record listening radio programs onto the tape with high quality. Recording radio content often requires complex methods such as external wiring connections, making the process cumbersome. Therefore, referring to… Figure 1-5 As shown, a compact and easy-to-operate multifunctional magnetic tape recording and radio device is provided, which can achieve a high degree of integration of multiple functions such as direct recording of broadcast signals, recording of ambient sound, playback of magnetic tape and radio.

[0034] Reference Figure 1 , 2 As shown in Figure 3, a multifunctional magnetic tape recording and recording device includes a housing 1, a core module 2 disposed within the housing 1, a control circuit board 3, a power supply module 4, an audio output component 5, and an operation interface 7 disposed on the surface of the housing 1. The core module 2 includes a motor 21, a magnetic head 22, and a magnetic tape compartment 23.

[0035] The multi-functional magnetic tape recording and radio device also includes an audio acquisition component 6, which is mounted on the housing 1 and is used to acquire audio signals from the surrounding environment; the control circuit board 3 is electrically connected to the power module 4, and the control circuit board 3 integrates a signal processing unit, a radio unit and a power amplifier unit.

[0036] The signal processing unit is electrically connected to the mechanism module 2, the audio output component 5, the operation interface 7, and the audio acquisition component 6, respectively. The signal processing unit is configured to process recording and playback signals.

[0037] The radio unit is electrically connected to the signal processing unit for AM / FM band reception, and is also connected to an antenna. The power amplifier unit is electrically connected to the signal processing unit and audio output component 5 for audio output.

[0038] The user interface 7 includes tape operation keys 71 for controlling tape operation and a tuner 72 for controlling the radio unit. For example, the tuner 72 can be a conventional tuning knob. The tape operation keys 71 include play / stop, fast forward, rewind, record, and radio on / off buttons, etc.

[0039] The device's operating modes include tape recording mode, tape playback mode, and radio reception mode;

[0040] In tape recording mode, the signal processing unit is configured to selectively receive audio signals from the radio unit or the audio acquisition unit 6, and record the audio signals onto the tape via the magnetic head 22. In tape playback mode, the signal processing unit reads the audio signals from the tape drive module 2, processes them, and plays them out through the audio output unit 5. In radio mode, the AM / FM band signals received by the radio unit are transmitted to the signal processing unit, processed, and then the user can listen to broadcast programs through the audio output unit 5.

[0041] Reference Figure 2 As shown, in some embodiments, the control circuit board 3 integrates a voice activation control unit. This control unit is electrically connected to the audio acquisition component 6 and the signal processing unit, and is configured to automatically trigger the start or pause of tape recording mode based on the level value of the ambient sound signal acquired by the audio acquisition component 6. When the level value of the ambient sound signal exceeds a preset threshold, the voice activation control unit automatically triggers the start of tape recording mode, enabling the device to automatically begin recording the sounds of the surrounding environment. Conversely, when the level value of the ambient sound signal is lower than another preset threshold, the voice activation control unit triggers the pause of tape recording mode to avoid recording unnecessary silence or noise. This design allows users to achieve intelligent recording control without manual operation, greatly improving ease of use and efficiency.

[0042] Reference Figure 2As shown, in some embodiments, the voice activation control unit includes a comparison circuit for comparing the level of an ambient sound signal with a preset threshold, and outputting a control signal to the signal processing unit and the motor 21 drive circuit of the mechanism module 2 based on the comparison result. When the level of the ambient sound signal is higher than the preset threshold, the comparison circuit outputs a start signal to the signal processing unit, instructing it to prepare to receive and process audio data from the audio acquisition unit 6, and simultaneously sends a drive signal to the motor 21 drive circuit of the mechanism module 2, driving the tape to start rotating and entering the recording state. Conversely, when the level of the ambient sound signal is lower than the preset threshold, the comparison circuit outputs a stop signal, instructing the signal processing unit to stop processing the audio data, and sends a stop signal to the motor 21 drive circuit of the mechanism module 2, causing the tape to stop rotating and the recording mode to pause. This mechanism ensures intelligent triggering and stopping of the recording function, further improving the automation level of the device and the user experience.

[0043] Reference Figure 1 , 2 As shown in Figure 3, in some embodiments, the audio acquisition component 6 includes a microphone 61 built into the housing 1. The microphone 61 is capable of capturing ambient sound with high sensitivity and converting it into electrical signals for subsequent processing.

[0044] Reference Figure 1 and 5 As shown, in some embodiments, a battery compartment 41 is provided inside the housing 1; the power module 4 includes a battery pack 42 and an external power interface 43. The battery pack 42 is adapted to the battery compartment 41 and can be housed within the battery compartment 41. The control circuit board 3 also integrates a power management unit for switching and regulating the power supply from the battery and the external power input from the external power interface 43. The design of the battery compartment 41 facilitates user replacement or charging of the battery pack 42, ensuring that the device can continue to work without external power input. The external power interface 43 provides users with another power supply option. When the device is connected to an external power source, the power management unit automatically switches to the external power supply mode and stabilizes the voltage output to ensure stable device operation. In some embodiments, the power management unit also has an intelligent power management function, which can monitor the power status of the battery pack 42 and remind the user to replace the battery or connect an external power source when the power is low, effectively avoiding recording interruption caused by power depletion, and further improving the reliability of the device and user experience. For example, the battery pack 42 is configured with two AA batteries, and the external power interface 43 includes one or more of Micro USB and USB-C interfaces.

[0045] Reference Figure 1 , 2As shown in Figure 3, in some embodiments, the audio output component 5 includes a built-in speaker 51 and a headphone jack 52. The amplifier unit is configured to automatically switch the output path based on whether headphones are plugged into the headphone jack 52. When headphones are not plugged into the headphone jack 52, the amplifier unit transmits the audio signal to the built-in speaker 51 for external playback, allowing users to listen to the content directly without using headphones. When headphones are plugged into the headphone jack 52, the amplifier unit automatically identifies and switches the output path, transmitting the audio signal to the headphones. Simultaneously, the combination of the built-in speaker 51 and the headphone jack 52 also meets the usage needs of different users in different scenarios.

[0046] Reference Figure 1 , 2 As shown in Figure 3, in some embodiments, the user interface 7 further includes a mode switch 73 for switching between tape recording mode, tape playback mode, and radio mode. Users can easily switch between tape recording mode, tape playback mode, and radio mode by tossing the mode switch 73, without the need for complex menu operations or button combinations.

[0047] Reference Figure 2 As shown, in some embodiments, the signal processing unit includes a preamplifier circuit for pre-amplifying the recording signal and a playback equalization amplifier circuit for equalizing the playback signal. The preamplifier circuit can capture and enhance the recording signal, ensuring the clarity and fidelity of the recording content. This improves the quality of recording and playback. For example, the preamplifier circuit can be composed of a transistor Q1 or an operational amplifier.

[0048] Reference Figure 1 and 3 As shown, in some embodiments, the housing 1 includes a main body 11 and a flip cover 12 rotatably connected to one end of the main body 11. A tape tray 23 is disposed on the main body 11, and the flip cover 12 is used to cover the tape tray 23. The flip cover 12 is provided with a slot 121. When the flip cover 12 is open, the slot 121 is used to insert a tape; when the flip cover 12 is closed, the tape is housed in the tape tray 23. The flip cover 12 is provided with an audio playback window 122, and at least a portion of the audio output component 5 is correspondingly disposed at the audio playback window 122. When the user wants to play or record a tape, they can simply open the flip cover 12 and insert the tape into the slot 121. When the flip cover 12 is closed, the tape is safely stored in the tape tray 23, effectively preventing dust and external factors from damaging the tape. In addition, the design of the audio playback window 122 on the flip cover 12 allows the user to clearly see the status of the audio output component 5 through the window even when the flip cover 12 is closed.

[0049] For example, the radio unit can use a conventional AM / FM radio chip and its peripheral circuitry to receive radio signals via an antenna and send the demodulated audio signal to the signal processing unit.

[0050] For example, the signal processing unit includes a multiplexer switch, a recording preamplifier circuit, and a playback equalization amplifier circuit. It receives audio signals from the radio unit, the external audio input interface, and the built-in microphone 61, and routes the selected audio source signal to subsequent circuits according to the mode selected by the user via the mode switch 73. In recording mode, the processed audio source signal is sent to the magnetic head 22 for recording; in playback mode, the signal read by the magnetic head 22 is amplified and equalized before being sent to the power amplifier unit.

[0051] For example, the power amplifier unit uses an audio power amplifier chip to amplify the audio signal to drive a speaker or headphones. It automatically cuts off the speaker output when it detects headphones being inserted into the headphone jack 52.

[0052] For example, the voice activation control unit continuously monitors the signal level input from the built-in microphone 61 and compares it with a preset threshold using its internal comparison circuit. When the signal level exceeds the threshold, i.e., sound is detected, a start signal is sent to the signal processing unit and the motor 21 drive circuit to begin recording; when the signal level falls below the threshold for a period of time, a signal is sent to stop recording and the motor 21. As described, the voice activation control unit consists of a low-power operational amplifier, a voltage comparator, and several external resistors and capacitors. The ambient sound signal collected by the microphone 61 is pre-amplified, with one path sent to a multiplexer switch and the other path sent to the voice activation control unit.

[0053] For example, the power management unit is used to manage the power from the battery compartment 41 (which can hold two AA batteries) or the external power interface 43, to regulate and distribute the power, and to ensure that each circuit operates stably.

[0054] Reference Figure 1 , 2 As shown in Figure 3, the working process of the multi-functional magnetic tape recording and radio device is as follows:

[0055] Recording a radio program: The user selects "Radio Mode" via mode switch 73 and locates the desired radio station. Then, a blank cassette tape is inserted into the compartment, and the switch is switched to "Tape Recording Mode." At this time, the signal processing unit automatically routes the audio signal from the radio unit to the recording circuit, and the user presses the record button to begin recording. The recorded content is the currently listened-to radio program.

[0056] Intelligent Recording: In "Tape Recording Mode" with voice activation enabled, the device is in standby mode. When the built-in microphone 61 detects sound in the environment (such as a person starting to speak), recording automatically begins; when the sound stops for a period of time, recording automatically pauses, thus achieving intelligent power saving and tape conservation.

[0057] Playback and Listening: Insert a music cassette and switch to "Cassette Playback Mode" to play it. Switch to "Radio Mode" to listen to the radio. Plug in headphones, and the audio will automatically switch to headphone output.

[0058] In some embodiments, the control circuit board 3 can be implemented with higher integration, i.e., using a microcontroller, such as an MCU, to integrate and implement most of the control functions. In this embodiment, the control of the signal processing unit, voice activation control unit, power management logic, and even the radio chip can all be implemented by the MCU through software programming. The microphone 61 signal and the radio audio output signal are sampled by the MCU through the ADC pin. The MCU's internal program implements functions such as digital filtering, level comparison, and delay judgment, thereby replacing most of the analog circuitry. The advantage of this embodiment is its high flexibility; functional parameters such as the voice activation threshold and delay time can be easily adjusted and upgraded through software, and more complex user interaction logic can be implemented, such as settings via button combinations.

[0059] The electronic devices provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A multifunctional magnetic tape recording and recording device, comprising a housing, a mechanism module disposed within the housing, a control circuit board, a power supply module, an audio output component, and an operating interface disposed on the surface of the housing, wherein the mechanism module includes a motor, a magnetic head, and a magnetic tape compartment, characterized in that: It also includes an audio acquisition component, which is mounted on the housing and is used to acquire audio signals from the surrounding environment; The control circuit board is electrically connected to the power module, and the control circuit board integrates: The signal processing unit is electrically connected to the mechanism module, the audio output component, the operation interface, and the audio acquisition component, respectively. The signal processing unit is configured to process recording and playback signals. The radio unit is electrically connected to the signal processing unit and is used for AM / FM band reception; The power amplifier unit is electrically connected to the signal processing unit and the audio output component, and is used to output audio. The user interface includes tape operation keys for controlling tape operation and tuning components for controlling the radio unit. The device has the following operating modes: tape recording mode, tape playback mode, and radio reception mode. In the magnetic tape recording mode, the signal processing unit is configured to selectively receive audio signals from the recording unit or the audio acquisition component, and record the audio signals to the magnetic tape via the magnetic head.

2. The multifunctional magnetic tape recording and radio device according to claim 1, characterized in that, The control circuit board integrates a voice activation control unit, which is electrically connected to the audio acquisition component and the signal processing unit, and is configured to automatically trigger the start or pause of the tape recording mode based on the level value of the ambient sound signal acquired by the audio acquisition component.

3. The multifunctional magnetic tape recording and radio device according to claim 2, characterized in that, The voice activation control unit includes a comparison circuit for comparing the level value of the ambient sound signal with a preset threshold, and outputting a control signal to the signal processing unit and the motor drive circuit of the mechanism module based on the comparison result.

4. The multifunctional magnetic tape recording and radio device according to claim 1, characterized in that, The audio acquisition component includes a microphone built into the housing.

5. The multifunctional magnetic tape recording and radio device according to claim 1, characterized in that, The housing contains a battery compartment; the power module includes a battery pack and an external power interface. The battery pack is adapted to the battery compartment and can be housed within it. The control circuit board also integrates a power management unit for switching and regulating the power supply from the battery and the external power input from the external power interface.

6. The multifunctional magnetic tape recording and radio device according to claim 1, characterized in that, The audio output component includes a built-in speaker and a headphone jack, and the power amplifier unit is configured to automatically switch the output path depending on whether headphones are connected to the headphone jack.

7. The multifunctional magnetic tape recording and radio device according to claim 1, characterized in that, The user interface also includes a mode switch for switching between the tape recording mode, tape playback mode, and radio mode.

8. The multifunctional magnetic tape recording and radio device according to claim 1, characterized in that, The signal processing unit includes a preamplifier circuit for preamplifying the recording signal and a playback equalization amplifier circuit for equalization compensation of the playback signal.

9. The multifunctional magnetic tape recording and radio device according to claim 1, characterized in that, The housing includes a main body and a flip cover rotatably connected to one end of the main body. The magnetic tape compartment is disposed on the main body, and the flip cover is used to cover the magnetic tape compartment.

10. The multifunctional magnetic tape recording and radio device according to claim 9, characterized in that, The flip cover is provided with a slot, which is used to insert a magnetic tape when the flip cover is open; and the magnetic tape is housed in the magnetic tape compartment when the flip cover is closed.

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