Pulse or digital communications – Pulse code modulation – Correcting or reducing quantizing errors
Reexamination Certificate
2011-07-19
2011-07-19
Wang, Ted M (Department: 2611)
Pulse or digital communications
Pulse code modulation
Correcting or reducing quantizing errors
C375S240030, C704S222000, C704S230000
Reexamination Certificate
active
07983346
ABSTRACT:
A method of encoding/decoding a digital signal using linear quantization by sections, and an apparatus for the same are provided. The method of encoding includes: converting a digital input signal, and removing redundant information from the digital signal; allocating a number of bits allocated to each predetermined quantized unit considering the importance of the digital signal; dividing the distribution of signal values into predetermined sections based on the predetermined quantized units, and linear quantizing data converted pin the operation of converting the digital input signal by sections; and generating a bit stream from the linear quantized data and predetermined side information. Therefore, a sound quality is improved compared to a sound quality produced by conventional linear quantizing devices and a complexity of a non-linear quantizing device is reduced.
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Kim Do-hyung
Kim Jung-hoe
Kim Sang-wook
Lee Shi-hwa
Samsung Electronics Co,. Ltd.
Staas & Halsey , LLP
Wang Ted M
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