Bluetooth intercom system
By combining Bluetooth headsets and Bluetooth watches, the problem of poor sound pickup in quiet places by Bluetooth walkie-talkies is solved, enabling private calls where people speak softly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-04
- Publication Date
- 2026-04-14
AI Technical Summary
Bluetooth walkie-talkies have poor sound pickup in quiet places, requiring users to speak loudly, and Bluetooth headsets lack privacy.
Design a Bluetooth intercom system that combines a Bluetooth headset and a Bluetooth watch. The watch's microphone collects sound and transmits it via the call function, while the Bluetooth headset receives the sound, enabling short-range communication to improve sound pickup and privacy.
In quiet places, users can speak softly. The Bluetooth watch, when used with earphones, improves sound pickup and privacy, making it suitable for more occasions.
Smart Images
Figure CN224124129U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of walkie-talkie technology, and in particular to a Bluetooth walkie-talkie system. Background Technology
[0002] High-frequency (HF) walkie-talkies are wireless communication devices that use the high-frequency (HF, 3-30MHz) band. They are mainly used for long-distance wireless communication, such as at sea, in remote areas, or for emergency communication. HF walkie-talkies have high power consumption and are relatively expensive. In smaller application scenarios, they are not necessary and are instead replaced by Bluetooth walkie-talkies. However, Bluetooth walkie-talkies are typically worn on the body, have relatively poor sound pickup, require the user to speak loudly, and are not suitable for quiet environments. Utility Model Content
[0003] To address the aforementioned problems, this utility model provides a Bluetooth intercom system.
[0004] This utility model proposes a Bluetooth intercom system, including a Bluetooth headset and a Bluetooth watch. The Bluetooth watch is equipped with a first Bluetooth chip, a microphone, a touch screen, and a first Bluetooth antenna. The first Bluetooth chip is connected to the microphone, the touch screen, and the first Bluetooth antenna. The Bluetooth headset includes a second Bluetooth chip and a second Bluetooth antenna. The second Bluetooth chip is connected to the second Bluetooth antenna. The Bluetooth watch and the Bluetooth headset communicate through the first Bluetooth antenna and the second Bluetooth antenna.
[0005] In one embodiment of this utility model, the Bluetooth headset is further provided with a button, and the second Bluetooth chip is connected to the button.
[0006] In one embodiment of this utility model, both the Bluetooth headset and the Bluetooth watch are equipped with batteries.
[0007] In one embodiment of the present invention, the touch screen includes a TFT1 chip, which is connected to the first Bluetooth chip U4 via LCD_CS pin, LCD_SDA pin, LCD_RS pin, LCD_CLK pin, LCD_SD2_XX pin, LCD_SD3_XX pin and L / TP_RST pin. The TFT1 chip is also connected to a microcontroller U7.
[0008] In one embodiment of this utility model, the first Bluetooth chip is also connected to a speaker via a power amplifier.
[0009] In one embodiment of this utility model, the power amplifier includes a power amplifier chip U1. The BYP and VDD pins of the power amplifier chip U1 are respectively connected to capacitors, and the INV and INN pins are respectively connected to cascaded capacitors and resistors.
[0010] In one embodiment of this utility model, the Bluetooth watch is further provided with a three-axis gyroscope.
[0011] This utility model's technical solution utilizes a Bluetooth headset and a Bluetooth watch to form a Bluetooth intercom system. Because the distance between the Bluetooth watch and the user is adjustable, the user can speak softly near the Bluetooth watch in a quiet place to receive audio. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0013] Figure 1 A schematic diagram of the Bluetooth intercom system provided by this utility model;
[0014] Figure 2 One of the circuit schematic diagrams for the Bluetooth watch provided by this utility model;
[0015] Figure 3 The second circuit schematic diagram of the Bluetooth watch provided by this utility model;
[0016] Figure 4 The circuit diagram of the Bluetooth headset provided by this utility model.
[0017] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0021] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0022] Figure 1 A schematic diagram of the Bluetooth intercom system provided by this utility model; Figure 2 One of the circuit schematic diagrams for the Bluetooth watch provided by this utility model; Figure 3 The second circuit schematic diagram of the Bluetooth watch provided by this utility model; Figure 4 The circuit diagram of the Bluetooth headset provided by this utility model.
[0023] like Figures 1-4 As shown, the present invention proposes a Bluetooth intercom system, including a Bluetooth headset 2 and a Bluetooth watch 1. The Bluetooth watch 1 is provided with a first Bluetooth chip, a microphone, a touch screen and a first Bluetooth antenna. The first Bluetooth chip is connected to the microphone, the touch screen and the first Bluetooth antenna respectively. The Bluetooth headset 2 includes a second Bluetooth chip and a second Bluetooth antenna. The second Bluetooth chip is connected to the second Bluetooth antenna. The Bluetooth watch 1 and the Bluetooth headset 2 communicate through the first Bluetooth antenna and the second Bluetooth antenna.
[0024] Bluetooth headset 2 can be in-ear, earbuds, or on-ear / behind-the-neck. In-ear headsets fit snugly into the ear canal, earbuds are a traditional semi-in-ear design, and on-ear headsets are worn on the outside of the ear. This invention does not improve the mechanical structure of Bluetooth headset 2 and Bluetooth watch 1. Those skilled in the art can determine the structure of Bluetooth watch 1 and Bluetooth headset 2 based on existing technology. The improvement of this invention lies in the Bluetooth pairing of Bluetooth watch 1 and Bluetooth headset 2 to form a Bluetooth walkie-talkie system. The user wears Bluetooth headset 2 in an in-ear, earbud, or on-ear manner and wears Bluetooth watch 1 on their wrist. Bluetooth watch 1 has a call function, which can be implemented based on 4G / 5G communication circuits or using the wireless transmission circuits of existing walkie-talkies. In a quiet place, the user can speak softly close to the Bluetooth watch 1. The Bluetooth watch 1 collects the user's speech through the microphone and transmits it to other users using the call function. The Bluetooth watch 1 can also receive the speech of other users and transmit it to the Bluetooth headset 2 through the first Bluetooth antenna and the second Bluetooth antenna.
[0025] In one embodiment of this utility model, the Bluetooth headset 2 is further provided with a button, and the second Bluetooth chip is connected to the button. In other embodiments, the button can also be located on the Bluetooth watch 1. Figures 2-4 In the middle, the button is set on Bluetooth Watch 1.
[0026] In one embodiment of this invention, both the Bluetooth headset 2 and the Bluetooth watch 1 are equipped with batteries. The batteries provide power to the Bluetooth headset 2 and the Bluetooth watch 1, respectively.
[0027] In one embodiment of the present invention, the touch screen includes a TFT1 chip, which is connected to the first Bluetooth chip U4 via LCD_CS pin, LCD_SDA pin, LCD_RS pin, LCD_CLK pin, LCD_SD2_XX pin, LCD_SD3_XX pin and L / TP_RST pin. The TFT1 chip is also connected to a microcontroller U7.
[0028] In one embodiment of this utility model, the first Bluetooth chip is further connected to a speaker via a power amplifier. Optionally, the power amplifier includes a power amplifier chip U1, with capacitors connected to the BYP and VDD pins of the power amplifier chip U1, and cascaded capacitors and resistors connected to the INV and INN pins, respectively.
[0029] In one embodiment of this utility model, the Bluetooth watch 1 is further provided with a three-axis gyroscope, which can be used to detect the raising action and angle, and send control commands to the first Bluetooth chip in order to open a call.
[0030] In summary, while Bluetooth Watch 1 has call and display functions, its audio is played aloud, lacking privacy, making it unsuitable for many situations. Existing Bluetooth walkie-talkies are small and power-efficient, but their microphones have a relatively long range, resulting in poor sound pickup and requiring users to speak loudly, making them unsuitable for quiet environments. This invention utilizes Bluetooth headset 2 and Bluetooth Watch 1 to form a Bluetooth walkie-talkie system, complementing each other. The distance between Bluetooth Watch 1 and the user is adjustable; the user can speak softly near Bluetooth Watch 1 in quiet environments for audio pickup. The touchscreen of Bluetooth Watch 1 can display notifications, while the headset is used for listening, providing good privacy.
[0031] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A Bluetooth intercom system, characterized in that, The device includes a Bluetooth headset and a Bluetooth watch. The Bluetooth watch is equipped with a first Bluetooth chip, a microphone, a touch screen, and a first Bluetooth antenna. The first Bluetooth chip is connected to the microphone, the touch screen, and the first Bluetooth antenna. The Bluetooth headset includes a second Bluetooth chip and a second Bluetooth antenna. The second Bluetooth chip is connected to the second Bluetooth antenna. The Bluetooth watch and the Bluetooth headset communicate with each other through the first Bluetooth antenna and the second Bluetooth antenna.
2. The Bluetooth intercom system according to claim 1, characterized in that, The Bluetooth headset also has a button, and the second Bluetooth chip is connected to the button.
3. The Bluetooth intercom system according to claim 1, characterized in that, Both the Bluetooth headset and the Bluetooth watch are equipped with batteries.
4. The Bluetooth intercom system according to claim 1, characterized in that, The touchscreen includes a TFT1 chip, which is connected to the first Bluetooth chip U4 via LCD_CS pin, LCD_SDA pin, LCD_RS pin, LCD_CLK pin, LCD_SD2_XX pin, LCD_SD3_XX pin and L / TP_RST pin. The TFT1 chip is also connected to a microcontroller U7.
5. The Bluetooth intercom system according to claim 1, characterized in that, The first Bluetooth chip is also connected to a speaker via a power amplifier.
6. The Bluetooth intercom system according to claim 5, characterized in that, The power amplifier includes a power amplifier chip U1. The BYP and VDD pins of the power amplifier chip U1 are connected to capacitors, and the INV and INN pins are connected to cascaded capacitors and resistors, respectively.
7. The Bluetooth intercom system according to any one of claims 1-6, characterized in that, The Bluetooth watch also features a three-axis gyroscope.