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:
Jun. 07, 2005
Filed:
Aug. 16, 2001
James T. Hanson, Maynard, MA (US);
Walter Gordon Woodington, Lincoln, MA (US);
Michael Joseph Delcheccolo, Westford, MA (US);
Joseph S. Pleva, Londonderry, NH (US);
Mark E. Russell, Westford, MA (US);
H. Barteld Van Rees, Needham, MA (US);
James T. Hanson, Maynard, MA (US);
Walter Gordon Woodington, Lincoln, MA (US);
Michael Joseph Delcheccolo, Westford, MA (US);
Joseph S. Pleva, Londonderry, NH (US);
Mark E. Russell, Westford, MA (US);
H. Barteld Van Rees, Needham, MA (US);
Raytheon Company, Waltham, MA (US);
Abstract
A video amplifier for a radar receiver includes a temperature compensating attenuator. The attenuator includes a temperature sensitive device, such as a thermistor, arranged in a voltage divider network and is coupled in cascade between two filter stages. Each of the filter stages has a bandpass characteristic in order to filter low-frequency leakage signals and provide sensitivity control based on frequency and thus range, while also filtering high frequency signals to reduce aliasing.