Head-mounted Bluetooth earphone system integrating audio playing and pointing functions

Abstract

The utility model discloses a head-mounted Bluetooth earphone system integrating audio playing and pointing functions, which comprises a main control module, an audio sub-module, a pointing sub-module and a power supply module, and is characterized in that the signal output end of the pointing sub-module is connected with the signal input end of the main control module; the signal output end of the main control module is connected with the signal input end of the audio sub-module; the power supply module is used for providing electric energy for the main control module, the audio sub-module and the pointing sub-module; according to the head-mounted Bluetooth earphone system integrating the audio playing and pointing functions, the pointing sub-module is arranged, so that the Bluetooth earphone has the function of processing an audio signal, also can replace the function of a pointing remote controller and can be used for remotely controlling a television, the cost of purchasing the pointing remote controller is saved, two hands are liberated, and the user experience is improved. Through natural motion control of the head, the Bluetooth earphone is suitable for more scenes, functions of the Bluetooth earphone are more diversified, and multi-aspect requirements of users are met.

Description

Technical Field

[0001] This utility model relates to the field of Bluetooth headset technology, specifically to a Bluetooth headset system that integrates audio playback and directional functions. Background Technology

[0002] Wireless Bluetooth headsets include Bluetooth headsets and infrared headsets. Bluetooth headsets apply Bluetooth technology to hands-free devices, allowing users to be free from the shackles of annoying wires and easily make calls in various ways. Since their advent, Bluetooth headsets have been a valuable tool for mobile business professionals to improve efficiency.

[0003] However, existing Bluetooth headsets offer only the ability to receive and transmit audio signals, lacking other functionalities. This limited functionality fails to meet the diverse needs of users. Utility Model Content

[0004] Therefore, it is necessary to provide a Bluetooth headset system that integrates audio playback and directional functions. This addresses the problem mentioned in the background art that existing Bluetooth headsets have limited functionality and cannot meet the diverse needs of users.

[0005] A Bluetooth headset system integrating audio playback and directional functions includes a main control module, an audio submodule, a directional submodule, and a power module. The signal output terminal of the directional submodule is connected to the signal input terminal of the main control module, and the signal output terminal of the main control module is connected to the signal input terminal of the audio submodule. The power module is used to provide power to the main control module, the audio submodule, and the directional submodule.

[0006] In one embodiment, the pointing submodule includes a spatial positioning unit, an IMU unit, and an infrared proximity unit; the spatial positioning unit is used to provide centimeter-level spatial positioning to determine the relative position of the Bluetooth headset and the target device; the IMU unit is used to detect head posture and motion acceleration when wearing the Bluetooth headset; the infrared proximity unit is used to detect the wearing status of the Bluetooth headset and the approximate direction when pointing.

[0007] In one embodiment, the pointing submodule further includes a touch unit for receiving user gesture commands.

[0008] In one embodiment, the audio submodule includes a digital-to-analog converter unit and a microphone array unit. The digital-to-analog converter unit is used to convert digital audio signals into analog audio signals, and the microphone array unit is used to reduce the noise of the analog audio signals before sending them to the speaker for playback.

[0009] In one embodiment, the chip model of the digital-to-analog converter is ES9218.

[0010] In one embodiment, the main control module is a dual Bluetooth channel module.

[0011] In one embodiment, the main control module further includes a radio frequency unit, which sends the data processed by the main control module to a camera connected to the target device.

[0012] In one embodiment, the power module includes a charging unit that charges the lithium battery while simultaneously supplying power to the main control module, the audio submodule, and the pointing submodule.

[0013] The aforementioned Bluetooth headset system, which integrates audio playback and directional functions, utilizes a combination of a main control module, an audio submodule, a directional submodule, and a power module. The directional submodule allows the Bluetooth headset to not only process audio signals but also function as a remote control, enabling it to control a television and saving the cost of a physical remote. It also frees up the hands, allowing for natural head movement control, adapting to various scenarios (such as operation during exercise or volume adjustment while cooking). This diversifies the Bluetooth headset's functionality and meets diverse user needs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a Bluetooth headset system integrating audio playback and pointing functions according to an embodiment of the present invention;

[0015] Figure 2 for Figure 1 A schematic diagram of the audio submodule structure of a Bluetooth headset system integrating audio playback and pointing functions according to an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the directional submodule of a Bluetooth headset system integrating audio playback and directional functions according to an embodiment of the present invention.

[0017] Figure 4 This is a circuit diagram of the main control module of a Bluetooth headset system with integrated audio playback and pointing functions, according to an embodiment of the present invention. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0019] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediary component present. Conversely, when a component is said to be "directly" connected to another component, there is no intermediary component.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] like Figure 1 As shown, a Bluetooth headset system integrating audio playback and pointing functions includes a main control module 1, an audio submodule 2, a pointing submodule 3, and a power module 4. The signal output terminal of the pointing submodule 3 is connected to the signal input terminal of the main control module 1, and the signal output terminal of the main control module 1 is connected to the signal input terminal of the audio submodule 2. The power module 4 is used to provide power to the main control module 1, the audio submodule 2, and the pointing submodule 3.

[0022] Main control module 1 is a dual-channel Bluetooth module. Internally, main control module 1 contains two independent Bluetooth radio frequency (RF) modules, baseband processors, or protocol stacks, designated as Bluetooth channel 1 and Bluetooth channel 2, which can operate simultaneously. Bluetooth channel 1 is used for audio transmission (such as receiving music from external devices), and Bluetooth channel 2 is used for data transmission (such as receiving information pointing to submodule 3).

[0023] like Figure 3 As shown, the pointing submodule 3 includes a spatial positioning unit 31, an IMU unit 32, and an infrared proximity unit 33; the spatial positioning unit 31 is used to provide centimeter-level spatial positioning to determine the relative position of the Bluetooth headset and the target device; the IMU unit 32 is used to detect the head posture and motion acceleration when wearing the Bluetooth headset; the infrared proximity unit 33 is used to detect the wearing status of the Bluetooth headset and the approximate direction when pointing.

[0024] In one embodiment, the pointing submodule 3 further includes a touch unit 34 for receiving user gesture commands. The IMU unit 32 is a 6-axis IMU, and the infrared proximity unit 33 is an infrared proximity sensor.

[0025] like Figure 4As shown, the spatial positioning unit 31 is connected to pins P0.03, P0.04, P0.05, P0.06, and P0.07 of the main control module 1; the IMU unit 32 is connected to pins P0.08, P0.09, P0.10, P0.11, and P0.12 of the main control module 1; the infrared proximity unit 33 is connected to pins P1.01, P1.02, and P1.03 of the main control module 1; and the touch unit 34 is connected to pins P1.10, P1.11, P1.12, and P1.13 of the main control module 1. The spatial positioning unit 31 is used to determine the relative position between the Bluetooth headset and the TV and send the relative position information to the main control module 1. The IMU unit 32 is used to detect the head posture (pitch, yaw, roll) and motion acceleration when wearing the Bluetooth headset and send the detected head posture information and motion acceleration information to the main control module 1. The infrared proximity unit 33 is used to detect the wearing status of the Bluetooth headset and the approximate direction when pointing, and send the wearing status information and pointing direction information of the Bluetooth headset to the main control module 1. The touch unit 34 is used to receive user gesture commands, such as sliding to adjust the volume and double-tapping to confirm the pointing target. Through the touch unit 34, the user can control the Bluetooth headset.

[0026] like Figure 2 As shown, in one embodiment, the audio submodule 2 includes a digital-to-analog converter unit 21 and a microphone array unit 22. The digital-to-analog converter unit 21 is used to convert digital audio signals into analog audio signals, and the microphone array unit 22 is used to reduce the noise of the analog audio signals before sending them to the speaker for playback. The chip model of the digital-to-analog converter unit 21 is ES9218.

[0027] The digital-to-analog converter 21 converts the digital audio signal sent by the main control module 1 into an analog audio signal, and sends the analog audio signal to the microphone array unit 22. The microphone array unit 22 reduces the noise of the analog audio signal and sends it to the speaker for playback.

[0028] The main control module 1 also includes a radio frequency unit 11, which sends the data processed by the main control module 1 to a camera connected to the target device.

[0029] The main control module 1 receives audio signals from the TV via an antenna. The received audio signals are transmitted via Bluetooth channel 1. The transmitted signals can be decoded using software (SBC, AAC, AptX, etc.) or via hardware decoding (using an external decoder). The decoded digital signals are then converted into analog audio signals by digital-to-analog converter 21. After noise reduction by microphone array unit 22, the analog audio signals are played through a speaker. The Bluetooth headset's pointing function is achieved through Bluetooth communication between the headset and the camera. IMU unit 32 (gyroscope + accelerometer), spatial positioning unit 31, and infrared proximity unit 33 detect head orientation and target pointing in real time. The camera is connected to the TV via USB. After spatial positioning unit 31 collects distance and angle data, it processes the data using an algorithm and sends it to main control module 1. Main control module 1 then compensates and calibrates the data, fuses it with the data from IMU unit 32 and infrared proximity unit 33, and sends it to RF unit 11 via Bluetooth channel 2. RF unit 11 transmits the data to the camera, which then transmits it to the TV, achieving precise pointing and control.

[0030] In this way, the over-ear Bluetooth headset system, which integrates audio playback and pointing functions, is configured with the main control module 1, audio sub-module 2, pointing sub-module 3, and power module 4. Through the setting of pointing sub-module 3, the Bluetooth headset can not only process audio signals, but also replace the function of a pointing remote control. It can be used to control the TV, saving the cost of purchasing a pointing remote control. At the same time, it frees up the hands and allows control through natural head movements, adapting to more scenarios (such as operation while exercising or adjusting the volume while cooking in the kitchen). It also makes the Bluetooth headset more versatile and meets the diverse needs of users.

[0031] In one embodiment, the power module 4 includes a charging unit that charges the lithium battery while simultaneously supplying power to the main control module 1, the audio submodule 2, and the pointing submodule 3.

[0032] Thus, power module 4 includes a USB port, a charging unit, and a lithium battery. USB power supply: When the TYPE_C port is inserted, a 5V voltage is input, which charges the lithium battery through the charging unit while simultaneously powering the Bluetooth headset. Battery power supply: When the TYPE_C port is removed, if the lithium battery level is higher than the minimum power requirement, the battery discharges to support headset operation.

[0033] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A Bluetooth headset system integrating audio playback and directional functions, characterized in that: It includes a main control module, an audio submodule, a pointing submodule, and a power module. The signal output terminal of the pointing submodule is connected to the signal input terminal of the main control module, the signal output terminal of the main control module is connected to the signal input terminal of the audio submodule, and the power module is used to provide power to the main control module, the audio submodule, and the pointing submodule.

2. The Bluetooth headset system integrating audio playback and pointing functions according to claim 1, characterized in that: The pointing submodule includes a spatial positioning unit, an IMU unit, and an infrared proximity unit; The spatial positioning unit is used to provide centimeter-level spatial positioning to determine the relative position of the Bluetooth headset and the target device; the IMU unit is used to detect head posture and motion acceleration when wearing the Bluetooth headset. The infrared proximity unit is used to detect the wearing status of the Bluetooth headset and its approximate direction when it is pointed.

3. A Bluetooth headset system integrating audio playback and pointing functions according to claim 2, characterized in that: The pointing submodule also includes a touch unit for receiving user gesture commands.

4. A Bluetooth headset system integrating audio playback and pointing functions according to claim 1, characterized in that: The audio submodule includes a digital-to-analog converter unit and a microphone array unit. The digital-to-analog converter unit is used to convert digital audio signals into analog audio signals, and the microphone array unit is used to reduce the noise of the analog audio signals before sending them to the speaker for playback.

5. A Bluetooth headset system integrating audio playback and pointing functions according to claim 4, characterized in that: The chip model of the digital-to-analog converter is ES9218.

6. A Bluetooth headset system integrating audio playback and pointing functions according to claim 1, characterized in that: The main control module is a dual Bluetooth channel module.

7. A Bluetooth headset system integrating audio playback and pointing functions according to claim 1, characterized in that: The main control module also includes a radio frequency unit, which sends the data processed by the main control module to a camera connected to the target device.

8. A Bluetooth headset system integrating audio playback and pointing functions according to claim 1, characterized in that: The power module includes a charging unit, which is used to charge the lithium battery while simultaneously supplying power to the main control module, the audio submodule, and the pointing submodule.

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