US Patent 7419231 Power sensing circuit

Patent 7419231 was granted and assigned to Lexmark International, Inc. on September, 2008 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Lexmark International, Inc.

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7419231

Date of Patent

September 2, 2008

Patent Application Number

11136832

Date Filed

May 25, 2005

Patent Primary Examiner

‌

Lam S Nguyen

Patent abstract

A heater chip that includes a circuit element, and a bus that can be used to power the circuit element. The heater chip also includes a feedback circuit that is coupled to the power bus. Particularly, the feedback circuit can be configured to indicate if the bus is powered the circuit element.