Virtual surround sound production circuit, planar sound source apparatus, and flat panel display device

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United States of America Patent

PATENT NO 12081954
APP PUB NO 20230068347A1
SERIAL NO

17790089

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Abstract

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A virtual surround sound production circuit includes: a subtraction unit configured to perform subtraction operation on first and second signals to output a third signal; a first addition unit configured to perform addition operation on the first and second signals to output a center channel signal; a surround sound adjustment unit configured to adjust the third signal or another third signal that has undergone frequency compensation to output a fourth signal; a center compensation unit configured to adjust the center channel signal to output a fifth signal; a second addition unit configured to perform addition operation on the first, fourth and fifth signals to output a first output signal; a phase inverter unit configured to perform phase inversion on the fourth signal to generate a phase-inverted signal; and a third addition unit configured to perform addition operation on the second, fifth and phase-inverted signals to output a second output signal.

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Patent Owner(s)

Patent OwnerAddress
BOE TECHNOLOGY GROUP CO LTDNO 10 JIUXIANQIAO RD CHAOYANG DISTRICT BEIJING 100015
BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO LTDNO 8 XIHUANZHONGLU BDA BEIJING 100176

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liu, Jing Beijing, CN 792 3425
Meng, Zhaohui Beijing, CN 44 47
Sun, Wei Beijing, CN 828 5397
Tian, Li Beijing, CN 153 155

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