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. 29, 2001
Filed:
Jun. 30, 1997
Yi Cheng, San Jose, CA (US);
Kris M. Holt, Pleasanton, CA (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
A filter has a transfer function. The filter includes a signal input for receiving an input signal and a signal output operatively coupled to the signal input for providing an output signal. A ratio of the output signal to the input signal is equal to the filter's transfer function. The filter also includes a set of control inputs, wherein each control input in the set of control inputs is adapted for providing a digital signal. Each selectable transconductive load in a set of selectable transconductive loads has a transconductance and is operatively coupled to the signal output and a control input in the set of control inputs. The transfer function is set in response to a digital signal provided by at least one control signal in the set of control signals. Each selectable transconductive load is selected in response to at least one control signal in the set of control signals. Accordingly, the value for the transfer function is further dependent upon transconductances provided by selectable transconductive loads that are selected.