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:
Jan. 15, 2008
Filed:
Oct. 10, 2002
Applicants:
Angus Gavin Goudie, Cambridge, GB;
Paul Thomas Troughton, Cambridge, GB;
Anthony Hooley, Cambridge, GB;
Inventors:
Angus Gavin Goudie, Cambridge, GB;
Paul Thomas Troughton, Cambridge, GB;
Anthony Hooley, Cambridge, GB;
Assignee:
1 . . . Limited, Cambridge, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/02 (2006.01); H04R 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides transducer arrays which are capable of outputting sound beams having a relatively constant width, and with minimal sidelobes, across a range of frequencies. This is achieved by utilising one or more digital signal modifiers within the signal path between the input sound signal and the array of transducers. Variable window functions are also disclosed.