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:
May. 14, 2002
Filed:
Mar. 30, 1999
Andrew Reilly, Hurlstone Park, AU;
Lake DSP Pty Ltd, Ultimo, AU;
Abstract
A method of compressing an audio signal comprising a series of values is disclosed, the method comprising: utilising a predetermined maximum number of bits B for representing values; dividing the audio signal into a series of blocks of a predetermined length N; and for each of the blocks: computing the maximum number of bits b required to represent the values within a block; packing an indicator of b bits in an output stream; and for each value within the block: where the value exceeds 2 writing only the b most significant bits to the output stream; and where the value does not exceed 2 writing the value to the output stream. The aforementioned methods are well suited to compressing impulse response functions. There is also disclosed a method of decoding an audio signal encoded by the aforementioned methods.