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. 24, 2005
Filed:
Jul. 22, 2004
Harry S. Harberts, San Marcos, CA (US);
Jeffrey M. Hinrichs, San Diego, CA (US);
Harry S. Harberts, San Marcos, CA (US);
Jeffrey M. Hinrichs, San Diego, CA (US);
Northrop Grumman Corporation, Los Angeles, CA (US);
Abstract
A digital-to-analog converter having a differential signal path, and a current parking circuit that is independent of the signal path, thereby avoiding a source of imbalance that caused output anomalies in conventional digital-to-analog circuitry. In one embodiment of the invention, a pair of diodes in the current parking circuit are connected through their own independent load resistors to a voltage source. In another embodiment, a single diode is used instead of the pair of diodes, and in a third embodiment the current parking circuit comprises a single load resistor connected to the voltage source, and no diodes at all.