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. 30, 2002
Filed:
Sep. 11, 2000
Stepan Iliasevitch, Nepean, CA;
Nortel Networks Limited, St. Laurent, CA;
Abstract
A bias block switching unit is responsive to a power down control signal for switching between first and second states thereof, being operatively coupled to a reference voltage and coupled to a first supply voltage. A first switch is responsive to the power down control signal for switching between first and second states thereof. The first switch provides an output signal. A first switched constant current unit is coupled to the first switch and a first supply voltage. A first switched constant current unit has a first state for providing a constant current output and a second state for providing substantially no current. The first switched constant current unit is responsive to a bias signal for switching between first and second states thereof. The bias signal is outputted from the bias block switching unit. A first voltage follower receives an input signal, is operatively coupled to a second voltage supply and operatively coupled to the first switch. An advantage is only permitting parasitic current during power-down operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile