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:
Oct. 15, 2013
Filed:
Aug. 02, 2011
Pablo Acosta-serafini, Medford, MA (US);
Kimo Tam, Lincoln, MA (US);
Stuart Mccracken, Arlington, MA (US);
Daniel Mulcahy, Cambridge, MA (US);
Pablo Acosta-Serafini, Medford, MA (US);
Kimo Tam, Lincoln, MA (US);
Stuart McCracken, Arlington, MA (US);
Daniel Mulcahy, Cambridge, MA (US);
Analog Devices, Inc., Norwood, MA (US);
Abstract
Apparatus and methods are disclosed, such as those involving a receiver device. One such apparatus includes an equalizer configured to process an input signal transmitted over a channel. The equalizer can include a programmable gain amplifier (PGA) block which includes an input node configured to receive the input signal; an output node; and a programmable gain amplifier (PGA). The PGA amplifies the input signal with an adjustable gain. The PGA block also includes a gain control block having an input electrically coupled to the input node. The gain control block is configured to adjust the gain of the PGA at least partly in response to the input signal from the input node such that the PGA generates an output signal with a substantially constant amplitude envelope to the output node.