The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 23, 2002
Filed:
Feb. 25, 2000
Peter Charles Eastty, Eynsham, GB;
Peter Damien Thorpe, Botley, GB;
Christopher Sleight, Chipping Norton, GB;
Sony United Kingdom Limited, Weybridge, GB;
Abstract
An audio signal processor for processing 1-bit signals, comprises an input for receiving a 1-bit signal, means for applying a predetermined filter characteristic to the 1-bit signal whereby the signal is also converted to an n-bit signal where n is greater than one, means for determining the absolute value of the n-bit signal, means for producing a dynamics control signal dependent on the said absolute value, means for applying the dynamics control signal to the 1-bit input signal, and means for requantizing the dynamics controlled signal as a 1-bit signal and shaping the noise in the requantized 1-bit signal. Circuits for producing LOG base and the corresponding anti-log are also disclosed.