Data processing: measuring – calibrating – or testing – Measurement system – Measured signal processing
Patent
1997-02-25
1999-02-09
Barlow, John
Data processing: measuring, calibrating, or testing
Measurement system
Measured signal processing
702189, 702113, 702187, G01M 700, G01M 702
Patent
active
058706992
ABSTRACT:
A hand held data collector and analyzer achieves superior stability, accuracy and reliability through the use of a fixed frequency anti-aliasing filter and two analog to digital converters, one for high frequency signals and one for low frequency signals. Efficient digital filtering and decimation is achieved by providing specialized hardware filters and decimators and implementing software filters and decimators in a data processor. A true zoom method is employed to take advantage of the filtering and decimation capabilities, and independent digital signal processors operate serially on incoming signals to further reduce demands on the central processing unit. In addition, the RAM system memory is formatted as a pseudo-card to facilitate use of a PCMCIA memory card or the RAM system memory.
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1. Affidavit of John McGlone including Exhibits A, B, and C dated Sep. 3, 1998.
2. A brochure for the CSI 2115 dated Jul. 29, 1992.
Excerpts from Revision 1.0 of the PL302 Machine Analyser Operating Manual (Analyser Mode), including the pages from the Operator Reference Section with instructions regarding CENTRE, CH1, SOURCE, SPAN and ZOOM.
Excerpts from the book, Frequency Analysis by R.B. Randall of Bruel and Kjaer (3rd edition 1st print) revision Sep, 1987 which includes title Page, foreword, table of contents and section 4.4 (pp. 165-172). Lawyers for Entek IRD International Corporation have said that someone from Diagnostic Instruments informed them that the zoom processing in the PL 302 is done in the manner described in the aforementioned frequency analysis book.
Correspondence describing the Diagnostic Instruments PL302.
Excerpts from Hewlett Packard's 1991 Test and Measurement Catalog including pp. 152-155, introducing their signal analyzer line and p. 156 showing HP's Model No. 3560A.
1990 and 1993 literature of TEC and Entek, respectively for TEC Smart Meter Plus Data Collector.
Excerpts from ENTEK's 1993 manual (2nd edition) for its "Quick Load" software, describing the use of Quick Load with Bruel and Kjaer Model 2526 Data Collectors, including pp. 2-2, 2-3, 3-16, and 3-17 describing the zoom functions of the B&K 2526.
Product info literature for the B&K type 2526 Data Collector.
Product literature dated 1989 for Palomar Technology International SD MICROLOG Data Collector.
A brochure for the CSI 2115.
First brochure for the Data-Trap instrument, manufactured by Beta Monitors & Controls, .about.1982.
Second brochure for the Data-Trap instrument, manufactured by Beta Monitors & Controls, .about.1982.
Letter from R.L. Jenkins to Bryan Long of Beta Monitors & Controls, discussing the Data-Trap instrument, 20 Oct. 1982.
DSP-Motorola Digital Signal Processors: Principles of Sigma-Delta Modulation for Analog-to-Digital Converters, by Sangil Park, Ph.D., Strategic Applications, Digital Signal Processor Operation, Phoenix Arizona (Apr. 1993).
Canada Ronald G.
Czyzewski Zbigniew
Nelson Thomas E.
Simpson Danny
Assouad Patrick
Barlow John
CSI Technology, Inc.
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