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:
Oct. 12, 2004
Filed:
Dec. 23, 2002
Selina A Ballantyne, Malvern, GB;
Adrian S Coffey, Malvern, GB;
Martin Johnson, Malvern, GB;
Robin Jones, Malvern, GB;
QinetiQ Limited, Farnborough, GB;
Abstract
An apparatus for producing a digital depiction of a signal ( ) which is adaptive to the signal itself. A constant rate sampling means, such as an analogue to digital converter ( ), samples the signal ( ) at a constant rate and produces a first digital depiction ( ) of a signal. A transformation means ( ) is responsive to the first digital depiction ( ) and produces a second digital depiction based on the evolution of the signal. The transformation means may be capable of determining when a predetermined threshold level has been crossed and measuring the time interval between predetermined threshold level crossings. The transformation means ( ) may include a logic arrangement and a timer counter and is run from a clock signal ( ) from the same clock ( ) as drives the sampling means. A method of adapting a conventional ADC ( ) to adaptively sample the signal ( ) by adding a transformation means ( ) run off the same clock ( ) as the ADC ( ) is also provided.