Smartphone-mounted AI-linked recording device

Abstract

We provide a smartphone-mounted AI collaboration device that is detachably configured to attach to the back of a mobile communication terminal. [Solution] The device includes a main body housing 100 with a thin plate structure that forms a mounting space for a printed circuit board and a battery inside; a magnetic coupling part 110 arranged in an annular shape on the mounting surface side of the main body housing and providing the main magnetic coupling with the mobile communication terminal; an alignment magnet part 112 arranged apart from the magnetic coupling part to regulate the mounting position with the mobile communication terminal and prevent rotation; an external sound collection part 120 including a microphone provided inside a plurality of microphone holes formed through the top and / or front surface of the main body housing; a mode change switch 130 operably arranged on the side of the main body housing and configured to physically switch the operating mode of the device between a general recording mode and a call recording mode; and an interface terminal 140 for charging and / or data transmission and reception.

Description

Technical Field

[0003]

[0001] The present invention relates to the technical field of portable recording devices. More specifically, it relates to a slim-type smartphone-mounted AI-linked recording device that can be attached to the back of a smartphone using a magnet, selectively record call content and ambient sound through vibration and voice recognition, and is suitable for converting this into AI data.

Background Art

[0002] A portable recording device is an item that collects and stores a user's speech or ambient sound. In order to achieve miniaturization, weight reduction, and improved portability, it has been developed in various housing shapes and internal arrangement structures. In recent years, devices in a form that can transfer and manage recording data in conjunction with a smartphone have been proposed, and their utilization as peripheral devices for smartphones has been increasing.

[0003] On the other hand, although the call function of smartphones is widely used, call recording may be restricted or voice acquisition may not be smooth depending on specific terminals or operating environments, and there is a demand to use a separate external recording device in combination with a smartphone. Along with this, wearable recording devices that are attached or coupled to the outside of a smartphone and record call voices and ambient sounds have been proposed.

[0004] However, in the case of conventional wearable recording devices, when using coupling means such as clips, double-sided tapes, bands, etc., the external appearance unity is reduced and detachment / attachment is complicated. Even when magnetic coupling is applied, the magnetic arrangement structure is simple, so the alignment of the attachment position is reduced, and rotation, slipping, and dropping may occur during use.

Summary of the Invention

Problems to be Solved by the Invention

[0005] This invention overcomes the technical limitations on call recording imposed by the security policies of mobile communication terminal operating systems, and also solves the problems of reduced portability due to volume and reduced signal-to-noise ratio (SNR) due to ambient noise interference that occur with conventional external recording devices. [Means for solving the problem]

[0006] According to this invention, a thin housing that magnetically adheres to the back of the terminal has an annular magnetic coupling part and an aligned magnet part spaced apart to prevent rotation, and is equipped with an air conduction microphone and a sensor that directly detects vibrations of the terminal body, and the path of the collected signal can be instantly changed by a physical mode switching switch to selectively collect sound. [Effects of the Invention]

[0007] According to this invention, a precise contact structure using magnets ensures clear call recording data without interference from ambient noise, and the ultra-thin plate shape maximizes portability when attached to a terminal. Furthermore, the collected voice data can be transmitted to an AI-linked application to improve the efficiency of post-event information management. [Brief explanation of the drawing]

[0008] [Figure 1] A perspective view showing the overall configuration of a smartphone-mounted AI-linked slim recording device according to one embodiment of the present invention. [Figure 2] This is a plan view of a smartphone-mounted AI-linked slim recording device according to one embodiment of the present invention. [Figure 3] This is a side view of a smartphone-mounted AI-linked slim recording device according to one embodiment of the present invention. [Modes for carrying out the invention]

[0009] Figure 1 is a perspective view showing the overall configuration of a smartphone-mounted AI-linked slim recording device according to one embodiment of the present invention. Figure 2 is a plan view of the same device. Figure 3 is a side view of the same device. The smartphone-mounted AI-linked recording device will be described below with reference to Figures 1 to 3.

[0010] The smartphone-mounted AI-linked recording device according to the present invention may be configured to include a main body housing (100) that forms the external shape, a magnetic coupling part (110) for the main magnetic coupling with a mobile communication terminal, an alignment magnet part (112) that precisely controls the mounting position with the terminal and prevents rotation, an external sound collection part (120) that collects acoustic signals, a mode switching switch (130) that physically changes the operating mode, and an interface terminal (140).

[0011] According to this invention, the main body housing (100) can be formed as a thin-type plate structure having a predetermined thickness so as to form mounting space for a printed circuit board and a battery inside and to conform closely to the shape of the back of the mobile communication terminal. In particular, it is desirable that the housing be made of a material having a predetermined rigidity in order to transmit minute vibration signals generated from the terminal body to an internal vibration detection sensor (not shown) without loss.

[0012] According to the present invention, a composite coupling structure of a magnetic coupling portion (110) and an alignment magnet portion (112) is possible. The magnetic coupling portion (110) is arranged in an annular (ring-type) manner to provide the primary attractive force to the terminal, and the alignment magnet portion (112), which is spaced vertically below the magnetic coupling portion (110), can magnetically couple with an alignment magnet provided inside the terminal. This dual magnet structure can provide the technical effect of physically restraining the device of the present invention from arbitrarily rotating on the back of the terminal or deviating from its mounting position, thereby ensuring the stability of the vibration transmission path and improving the SNR.

[0013] According to this invention, the magnetic coupling portion (110) can be formed as an annular structure with an outer diameter of 54 mm to 58 mm and an inner diameter of 44 mm to 48 mm, and more preferably, it can be set to an outer diameter of 56 mm and an inner diameter of 46 mm for compatibility with standard magnetic coupling interfaces. Neodymium magnets of N52 grade or higher can be used as the individual magnetic materials constituting the magnetic coupling portion (110), and it can have a thickness of 0.5 mm to 1.5 mm in order to ensure sufficient attraction force while maintaining a thin profile.

[0014] The alignment magnet section (112) is located vertically below the magnetic coupling section (110) and can be formed as a rectangular or rounded-corner capsule shape on a plane. The alignment magnet section (112) is formed to have a horizontal length of 5 mm to 7 mm and a vertical length of 10 mm to 12 mm, and by forming a complementary coupling with the alignment magnet on the back of the mobile communication terminal, it can physically suppress the horizontal rotation moment of the smartphone-mounted AI-connected device.

[0015] To achieve optimized mounting stability with mobile communication terminals, the separation distance from the center point of the magnetic coupling portion (110) to the upper edge of the alignment magnet portion (112) can be determined within the range of 30 mm to 35 mm. Such a precise separation arrangement, by aligning with the magnet arrangement standard inside the terminal, enables an auto-aligning function that automatically fixes the device in place by magnetic force without requiring the user to make any further adjustments during mounting.

[0016] According to this invention, the external sound collection unit (120) includes a plurality of microphone holes formed through the upper surface and near the front of the main body housing (100) and a microphone provided inside them, and is capable of collecting external air-conducted sound with high sensitivity in general recording mode. The mode switching switch (130) is a sliding structure that is operablely exposed on the side of the main body housing (100), and the operating algorithm of the device can be instantly changed to general recording mode or call recording mode by the user's physical force.

[0017] To improve the input efficiency of the voice signal and vibration signal by the external voice collection unit (120), the mounting surface of the main body housing (100) may include a physical design corresponding to the protruding heights of the magnetic coupling unit (110) and the alignment magnet unit (112). Specifically, the magnet units (110, 112) may protrude slightly about 0.1 mm to 0.3 mm from the surface of the housing (100), or the remaining housing area except for the part where the magnet units are embedded may have a structure in which a step is formed and recessed.

[0018] This minute step structure can form a predetermined air gap between the housing surface where the external voice collection unit (120) is arranged and the back surface of the terminal when the device is mounted on the terminal. This air gap functions as a passage for external sound to flow into the microphone hole and can help improve the sound reception sensitivity by assisting voice diffraction. At the same time, at the point where the magnet units (110, 112) are in direct contact with the terminal, it can induce the main body vibration generated from the terminal speaker to be directly conducted to the housing, and provide a physical environment in which the air-conducted voice and the bone-conducted vibration signal can be simultaneously optimized and collected.

[0019] According to the present invention, the interface terminal (140) is provided on one side of the lower end of the main body housing (100), and can provide a physical interface for charging from an external power source and transmitting and receiving the voice data stored inside to an external terminal.

[0020] According to the present invention, the above-described organic coupling structure forms an integrated feeling with the mobile communication terminal, and can technically achieve the recording reliability for call voices and ambient voices through a precise position fixing structure.

Explanation of Reference Numerals

Claims

1. In a smartphone-mounted AI-linked recording device that is detachably attached to the back of a mobile communication terminal, A main housing with a thin plate structure that forms a mounting space for a printed circuit board and battery inside; A magnetic coupling portion is positioned on the mounting surface side of the main housing and is arranged in an annular shape to provide the primary magnetic coupling with the mobile communication terminal; Alignment magnet section, positioned at a distance from the magnetic coupling section, and configured to restrict the mounting position with respect to the mobile communication terminal and prevent rotation; An external sound collection unit including a plurality of microphone holes formed through the upper and / or front surface of the main body housing and microphones provided inside them; A mode selector switch is operably located on the side of the main housing and configured to physically switch the operating mode of the device between general recording mode and call recording mode; and An interface terminal located on one side of the lower end of the main body housing, providing a physical interface for charging and / or data transmission / reception; A smartphone-mounted AI-linked recording device characterized by including [a specific feature].

2. The magnetic coupling portion (110) is formed as an annular structure with an outer diameter of 54 mm to 58 mm and an inner diameter of 44 mm to 48 mm. The smartphone-mounted AI-linked recording device according to claim 1, characterized in that the alignment magnet portion is positioned vertically below the magnetic coupling portion and is formed as a rectangle or capsule shape on a plane.

3. The mounting surface of the main housing includes a minute stepped structure corresponding to the arrangement area of ​​the magnetic coupling portion and the aligned magnet portion. The smartphone-mounted AI-linked recording device according to claim 2, characterized in that the minute step structure is configured such that, when the device is mounted on a mobile communication terminal, an air gap is formed between the housing surface on which the external voice collection unit is located and the back surface of the mobile communication terminal.

4. The smartphone-mounted AI-linked recording device according to claim 3, characterized in that the main body housing is formed of a material having a predetermined rigidity so that vibrations transmitted through the point where the magnetic coupling portion and / or alignment magnet portion are in close contact with the mobile communication terminal are transmitted to the vibration detection sensor without loss.

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