ປະ​ເພດ​ຄຳ​ຮ້ອງ
Patent - Foreign
ປະ​ເພດ​ຄຳ​ຮ້ອງຍ່ອຍ
Patent - Foreign
(10) ເລກທີ ແລະ ວັນທີການຈົດທະບຽນ
ສະຖານະ
Filed
(180) ມື້​ໝົດ​ອາຍຸ
(20) ​ເລກທີ ​ແລະ ມື້ ຍື່ນ​ຄຳ​ຮ້ອງ
LA P/794 2021.08.10
(40) ​ເລກທີ ​ແລະ ວັນ​ທີ​ເຜີຍ​ແຜ່
(86) ເລກທີ ແລະ ວັນທີ ເອກະສານ PCT
(87) and Date ເລກທີ ແລະ ວັນທີ່ ເຜີຍແຜ່ PCT
(85) ວັນ​ທີເອກະສານ​ເຂົ້າ
(30) ລາຍລະອຽດບຸລິມະສິດ
(51) ການຈັດ​ໝວດ​ໝູ່ IPC
(72) ຜູ້​ປະດິດສ້າງ
(LA) CARLSSON, Pontus : Paternostervagen 66 121 49 Johanneshov Sweden
(74) ຊຶ່ບໍລິສັດຕົວແທນ
(LA) Lao Trademark Agency : 148-149 Ban Sisavath Kang, Unit 16 Chanthabury District, P.O. Box: 925, Vientiane
(54) ຫົວຂໍ້
(LA) Audio Upmixer Operable in Prediction or Non-Prediction Mode
(EN) Audio Upmixer Operable in Prediction or Non-Prediction Mode
(57) ບົດສັງເຂບ
(LA)

The invention provides methods and devices for stereo encoding and decoding using complex prediction in the frequency domain. ln one embodiment' a decoding method, for obtaining an output
stereo signal from an input stereo signal encoded by complex  prediction coding and comprising
first frequency-domain representations of two input channels, comprises the upmixing steps of:
(i) computing a second frequency-domain representation of a first input channel; and (ii) computing an output channel on the basis of the first and second frequency-domain representations
of the first input channel, the first frequency-domain representation of the second input channel and a complex prediction coefficient. The upmixing can be suspended responsive to control data.

(58) ການ​ຮຽກຮ້ອງ
ປະເພດຂອງເອກະສານ ວັນທີ ການດໍາເນີນການ
ຊື່ຂອງລາຍການວັນ​ທີສະຖານະ
Filing2021.08.10Filed
Filing2021.09.14Filed