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A method for channel screening of bluetooth earphones for examination

A Bluetooth headset and channel technology, applied in the directions of earpiece/headphone accessories, wireless communication, advanced technology, etc., can solve the problems of increasing manufacturing cost of Bluetooth headset, affecting sound quality, wasting power, etc., to avoid insufficient battery power and prevent harmonics. Distortion, power consumption reduction effect

Active Publication Date: 2021-02-12
GUANGDONG QIMING TECHNOLOGY DEVELOPMENT CO LTD
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Problems solved by technology

[0003] Traditionally, foreign language listening tests are conducted through broadcast speakers. With the development of technology, in order to reduce the impact of environmental noise on candidates, broadcast tests are gradually conducted through Bluetooth headsets. However, due to the long listening time of some courses , or the same batch of headphones needs to be given to different candidates for listening tests at different times. Therefore, the built-in power capacity of the Bluetooth headset is required to be high, which increases the manufacturing cost of the Bluetooth headset. In addition, when the Bluetooth headset is generated, due to each In the earphones produced, the harmonics of the channel will cause distortion due to the small error of the components. Different earphones are slightly different. Affects sound quality to a certain extent and wastes power

Method used

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  • A method for channel screening of bluetooth earphones for examination

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Embodiment 1

[0044] When the bluetooth headset is generated, because the harmonics of the channel in each produced headset will be distorted due to the small error of the parts, different headsets are slightly different, and technicians need to check different headsets In order to select the appropriate channel for broadcasting, the technicians only need to perform harmonic distortion detection on the high-speed RF channel, classic RF channel and low-power RF channel in turn, and judge the frequency of each channel. The size of the harmonic distortion can preliminarily determine its approximate distortion, and select a suitable channel for broadcasting. At this time, if the channel broadcasting is successful, the channel will be enabled for broadcasting and the other two channels will be turned off to achieve energy saving. Purpose.

Embodiment 2

[0046] In this embodiment, if the channel selected for the first time cannot be broadcasted, at this time, the channel selected for the first time is closed and no longer measured, and all other channels are closed except the channel to be measured before the test, because Turn off other broadcast channels, so the measurement data will be more accurate. At this time, through multiple detections, the channel with the least error value is obtained, and broadcast according to this channel. At this time, if the broadcast is successful, select this channel , if the channel is still unsuccessful, it can only broadcast all channels in turn or at the same time.

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Abstract

The present invention relates to the field of bluetooth, in particular to a method for screening channels of bluetooth earphones for examinations, comprising bluetooth earphones and high-speed radio frequency channels, classic radio frequency channels and low-power radio frequency channels configured in the bluetooth earphones, including the following steps: S1, in turn Perform harmonic distortion detection on high-speed radio frequency channels, classic radio frequency channels and low-power radio frequency channels, and judge the magnitude of harmonic distortion of each channel; S2, open the channel with the lowest harmonic distortion for broadcasting; S3, if the channel broadcasts Success, then enable this channel to broadcast and close other channels, if the channel is not broadcast successfully, then after closing the channel, repeat S1 and S2 again, and close the channel except the channel to be measured before testing for testing; S4, if If there is still no successful channel broadcast, the high-speed radio frequency channel, the classic radio frequency channel and the low-power radio frequency channel are all turned on for broadcasting. The present invention broadcasts through a single channel to reduce the energy consumption of the Bluetooth headset.

Description

technical field [0001] The invention relates to the field of bluetooth earphones, in particular to a method for channel screening of bluetooth earphones for examinations. Background technique [0002] Foreign language, in today's information-advanced world, is one of the compulsory courses for students in school. Through learning, students can communicate with foreigners conveniently, and some foreign language grade examinations have also become the basic courses that people need to study abroad. . [0003] Traditionally, foreign language listening tests are conducted through broadcast speakers. With the development of technology, in order to reduce the impact of environmental noise on candidates, broadcast tests are gradually conducted through Bluetooth headsets. However, due to the long listening time of some courses , or the same batch of headphones needs to be given to different candidates for listening tests at different times. Therefore, the built-in power capacity of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/80H04W48/10H04W48/16H04W52/02H04R1/10
CPCH04R1/1091H04W48/10H04W48/16H04W52/0264Y02D30/70
Inventor 李权杨有科余亮陈杰永邹月荣郭清霞冯国梁邓义许鹏
Owner GUANGDONG QIMING TECHNOLOGY DEVELOPMENT CO LTD
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