Invention Grant
- Patent Title: Quantization scale factor determination device and quantization scale factor determination method
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Application No.: US17768801Application Date: 2020-09-04
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Publication No.: US12230287B2Publication Date: 2025-02-18
- Inventor: Akira Harada , Hiroyuki Ehara
- Applicant: Panasonic Intellectual Property Corporation of America
- Applicant Address: US CA Torrance
- Assignee: Panasonic Intellectual Property Corporation of America
- Current Assignee: Panasonic Intellectual Property Corporation of America
- Current Assignee Address: US CA Torrance
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2019-189177 20191016
- International Application: PCT/JP2020/033579 WO 20200904
- International Announcement: WO2021/075167 WO 20210422
- Main IPC: G10L19/035
- IPC: G10L19/035
Abstract:
This quantization scale factor determination device is provided with a correction circuit which corrects an initial value of a quantization scale factor on the basis of whether or not an audio signal spectrum is sparse, and a search circuit which searches for a quantization scale factor on the basis of the initial value.
Public/Granted literature
- US20230025447A1 QUANTIZATION SCALE FACTOR DETERMINATION DEVICE AND QUANTIZATION SCALE FACTOR DETERMINATION METHOD Public/Granted day:2023-01-26
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