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:
Jul. 13, 2004
Filed:
Dec. 17, 1998
Applicant:
Inventor:
Duncan Andrew Grant, Bristol, GB;
Assignee:
The University of Bristol, Bristol, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/00 ; H03F 3/317 ;
U.S. Cl.
CPC ...
H03F 1/00 ; H03F 3/317 ;
Abstract
An electrical device has an audio output, and the electrical device includes a radio receiver circuit, a class D amplifier, and an audio output element. The radio receiver circuit operates at a lower supply voltage than the amplifier. Moreover, the voltage supply for the radio receiver circuit is generated by a converter operating in a switched manner.