A MULTI-CHANNEL PERCEPTUAL AUDIO COMPRESSION SYSTEM WITH ENCODING MODE SWITCHING AMONG MATRIXED CHANNELS
Patent №
US 5,488,665
Granted
1996-01-30
Filed 1993
Owner
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
Lab
—
AI components
1
hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
08156495
A five-channel perceptual audio compression system which encodes five matrixed channels switches among a fourteen encoding modes each utilizing a respective different set of matrixed channels. Six of the modes are for encoding the three front channels and eight of the modes are for encoding the two back channels. A number of the modes have as at least one of their respective matrixed channels a matrixed channel which is a function of a) one of the input channels or a sum or difference of two of them, and b) a predicted value of a).
AI classification
Ownership
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
assignment · 67880193
Assignors
JOHNSTON, JAMES D., SINHA, DEEPEN
On an employer assignment, the assignors are typically the inventors.