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:
Apr. 10, 2012
Filed:
May. 02, 2007
Harry E. Smith, Jr., Sunnyvale, CA (US);
Russell K. Johnson, Half Moon Bay, CA (US);
Rodelo M. Emett, Danville, CA (US);
Harry E. Smith, Jr., Sunnyvale, CA (US);
Russell K. Johnson, Half Moon Bay, CA (US);
Rodelo M. Emett, Danville, CA (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
Disclosed are exemplary apparatus, techniques, algorithms and methods for reducing the size of time domain data with minimal distortion. In general, the exemplary techniques use a digital channelizer to convert a time series in to a set of frequency bins. Frequency bins that have a power less than a predefined threshold are converted to zero. The frequency domain data is then compressed using a compression routine. The compressed frequency domain data may be stored or transmitted. Recovery of the time domain data involves reversing the compaction process. Since the digital channelizer produces perfect reconstruction of the time signals, little distortion of the time domain signals occurs.