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:
Dec. 02, 2008
Filed:
Nov. 30, 2001
Aled Wynne Jones, Harston, GB;
Michael Raymond Reynolds, Harston, GB;
David Bartlett, Harston, GB;
Ian Michael Hosking, Harston, GB;
Donald Glenn Guy, Harston, GB;
Peter John Kelly, Harston, GB;
Daniel Reginald Ewart Timson, Harston, GB;
Nicolas Vasilopolous, Harston, GB;
Alan Michael Hart, Harston, GB;
Robert John Morland, Harston, GB;
Aled Wynne Jones, Harston, GB;
Michael Raymond Reynolds, Harston, GB;
David Bartlett, Harston, GB;
Ian Michael Hosking, Harston, GB;
Donald Glenn Guy, Harston, GB;
Peter John Kelly, Harston, GB;
Daniel Reginald Ewart Timson, Harston, GB;
Nicolas Vasilopolous, Harston, GB;
Alan Michael Hart, Harston, GB;
Robert John Morland, Harston, GB;
Intrasonics Limited, Harston, Cambridge, GB;
Abstract
There is described a number of encoders for encoding a data signal within an audio signal. In some of the encoders, the audio signal is separated into a tonal part and a residual part, and the data signal is shaped based on the residual part. In other encoders, the data signal is separated into a tonal part and a residual part, and the data signal is combined with the audio signal independence upon the residual part. In other encoders, the rate at which the data is encoded within the audio signal is varied in dependence upon the audio signal. There are also described various decoders associated with the described encoders.