Title:
CIRCUIT AND SOUND PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/045234
Kind Code:
A1
Abstract:
The present invention provides a circuit, comprising a first sound signal input end, a second sound signal input end, a power amplifier, a capacitor, a low-frequency sound production module, and a high-frequency sound production module. The first sound signal input end is used for receiving a sound signal having high and low pitches, and the second sound signal input end is used for receiving a voice signal; the first sound signal input end is connected to the positive input end of the power amplifier; the negative input end of the power amplifier is connected to the ground; the output end of the power amplifier is separately connected to the input end of the low-frequency sound production module and the first end of the capacitor; the second end of the capacitor is connected to the first input end of the high-frequency sound generation module; the second sound signal input end is connected to the second input end of the high-frequency sound production module. The present invention also provides a sound production device using the circuit provided by the present invention. Compared with the prior art, the technical solution of the present invention uses a smaller number of power amplifiers, has a simple structure, and has a wide application.
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Inventors:
REN ZHANG (CN)
ZHONG ZHIWEI (CN)
WANG QI (CN)
ZHONG ZHIWEI (CN)
WANG QI (CN)
Application Number:
PCT/CN2022/120076
Publication Date:
March 07, 2024
Filing Date:
September 21, 2022
Export Citation:
Assignee:
AAC MICROTECH CHANGZHOU CO LTD (CN)
International Classes:
H04R9/06; H04R9/02
Foreign References:
| CN2817244Y | 2006-09-13 | |||
| CN209105403U | 2019-07-12 | |||
| CN215300909U | 2021-12-24 | |||
| CN213938315U | 2021-08-10 | |||
| CN212936178U | 2021-04-09 | |||
| US20190289391A1 | 2019-09-19 |
Attorney, Agent or Firm:
SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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