User contributions for Rbj

17 January 2019

• 04:4104:41, 17 January 2019 diff hist +224 File:Mennonite-church-2.svg ‎Added [en] caption: Logo of Mennonite Church prior to 2002
• 04:4104:41, 17 January 2019 diff hist +286 N File:Mennonite-church-2.svg User created page with UploadWizard

29 June 2010

• 04:2304:23, 29 June 2010 diff hist +273 User talk:Lsibilla →could you fix the graphic for the R-2R ladder?: new section

2 April 2007

• 01:3001:30, 2 April 2007 diff hist +40 File:Bandlimited.svg →Summary

24 February 2007

• 08:0008:00, 24 February 2007 diff hist +152 Commons:Picture of the Year/2006/Voting phase 2/archive 5 →Votes (add to the BOTTOM)

19 August 2006

• 23:1523:15, 19 August 2006 diff hist +294 N File:CriticalFrequencyAliasing.png This shows three different sinusoids all at precisely the Nyquist frequency (or critical frequency) and how the samples do not provide enough information to differentiate between them. My script, Randy Yates ran it through Octave. No Rights Reserved.

18 August 2006

• 04:4404:44, 18 August 2006 diff hist +379 N File:ReconstructFilter.png Ideal brick-wall reconstruction filter in Nyquist-Shannon sampling and reconstuction theorem. H(f) passes the original baseband signal and eliminates the images or the dirac impulse sampled signal, this recovering the original signal from the samples. C

17 August 2006

• 04:0704:07, 17 August 2006 diff hist +221 N File:NonoverlappedSpectrum.png Hypothetical spectrum of a properly sampled bandlimited signal with no overlapping of images. Created by Robert Bristow-Johnson for use in Wikimedia Commons. No Rights Reserved.
• 04:0504:05, 17 August 2006 diff hist +252 N File:AliasedSpectrum.png Hypothetical spectrum of a inadequately sampled bandlimited signal where the images overlap showing how aliases are created. Created by Robert Bristow-Johnson for use in Wikimedia Commons. No Rights Reserved.
• 03:4403:44, 17 August 2006 diff hist +12 File:Bandlimited.svg No edit summary
• 03:4303:43, 17 August 2006 diff hist +12 File:Nonoverlapped.svg No edit summary
• 03:3103:31, 17 August 2006 diff hist +137 N File:Nonoverlapped.svg created by myself, Robert Bristow-Johnson, for use with Wikimedia commons. No rights reserved.
• 03:1603:16, 17 August 2006 diff hist +144 N File:Bandlimited.svg Created using Dia by myself, Robert Bristow-Johnson for use in Wikimedia commons. No rights reserved.

19 June 2006

• 02:2202:22, 19 June 2006 diff hist +61 File:Zeroorderhold.signal.png delete because SVG has been uploaded.
• 02:1502:15, 19 June 2006 diff hist +21 File:Zeroorderhold.impulseresponse.png delete because SVG has been uploaded.
• 02:1402:14, 19 June 2006 diff hist +21 File:Firstorderhold.signal.png delete because SVG has been uploaded.
• 02:1402:14, 19 June 2006 diff hist +21 File:Firstorderhold.impulseresponse.png delete because SVG has been uploaded.
• 02:1302:13, 19 June 2006 diff hist +21 File:Delayedfirstorderhold.signal.png delete because SVG has been uploaded.
• 02:1202:12, 19 June 2006 diff hist +21 File:Delayedfirstorderhold.impulseresponse.png delete because SVG has been uploaded.
• 02:1102:11, 19 June 2006 diff hist +21 File:Predictivefirstorderhold.signal.png delete because SVG has been uploaded.
• 02:1102:11, 19 June 2006 diff hist +21 File:Predictivefirstorderhold.impulseresponse.png delete because SVG has been uploaded.
• 02:0902:09, 19 June 2006 diff hist +21 File:Zeroorderhold.signal.png delete because SVG has been uploaded.
• 02:0602:06, 19 June 2006 diff hist +2 Commons:Deletion requests/Current requests →[[:Image:Nouméa flag.gif]], [[:Image:Nouméa coa.gif]], [[:Image:Province Sud flag.gif]]

17 June 2006

• 04:4404:44, 17 June 2006 diff hist +41 File:Quantized.signal.png No edit summary
• 04:4304:43, 17 June 2006 diff hist +38 File:Digital.signal.png →Summary
• 04:4204:42, 17 June 2006 diff hist +39 File:Sampled.signal.png →Summary
• 04:4104:41, 17 June 2006 diff hist +7 File:Zeroorderhold.signal.png →Summary
• 04:4004:40, 17 June 2006 diff hist +45 File:Sampled.held.signal.png →Summary
• 04:3404:34, 17 June 2006 diff hist −15 File:Predictivefirstorderhold.signal.svg i KNOW i selected this licensing declaration when first uploading.
• 04:3204:32, 17 June 2006 diff hist −15 File:Firstorderhold.signal.svg i KNOW i selected this licensing declaration when first uploading.

16 June 2006

• 20:5020:50, 16 June 2006 diff hist +33 File:Predictivefirstorderhold.impulseresponse.svg →Summary
• 20:4920:49, 16 June 2006 diff hist +33 File:Delayedfirstorderhold.impulseresponse.svg →Summary
• 20:4920:49, 16 June 2006 diff hist +33 File:Firstorderhold.impulseresponse.svg →Summary
• 20:4920:49, 16 June 2006 diff hist +33 File:Zeroorderhold.impulseresponse.svg →Summary
• 20:4820:48, 16 June 2006 diff hist +32 File:Predictivefirstorderhold.signal.svg No edit summary
• 20:4820:48, 16 June 2006 diff hist +33 File:Delayedfirstorderhold.signal.svg →Summary
• 20:4720:47, 16 June 2006 diff hist +32 File:Firstorderhold.signal.svg No edit summary
• 20:4620:46, 16 June 2006 diff hist +33 File:Zeroorderhold.signal.svg →Summary
• 20:4620:46, 16 June 2006 diff hist +32 File:Digital.signal.svg →Summary
• 20:4520:45, 16 June 2006 diff hist +33 File:Sampled.signal.svg →Summary
• 20:4520:45, 16 June 2006 diff hist +33 File:Quantized.signal.svg →Summary
• 20:3220:32, 16 June 2006 diff hist +209 N File:Digital.signal.svg image source obtained from User:Petr.adamek (with permission) and previously saved as PD in PNG format. touched up a little and converted to SVG by User:Rbj.
• 20:2620:26, 16 June 2006 diff hist +39 File:Predictivefirstorderhold.impulseresponse.png →Summary
• 20:2520:25, 16 June 2006 diff hist +30 File:Predictivefirstorderhold.signal.png →Summary
• 20:2420:24, 16 June 2006 diff hist +36 File:Delayedfirstorderhold.impulseresponse.png →Summary
• 20:2320:23, 16 June 2006 diff hist +27 File:Delayedfirstorderhold.signal.png →Summary
• 20:2220:22, 16 June 2006 diff hist +29 File:Firstorderhold.impulseresponse.png →Summary
• 20:2120:21, 16 June 2006 diff hist +20 File:Firstorderhold.signal.png →Summary
• 20:2020:20, 16 June 2006 diff hist +28 File:Zeroorderhold.impulseresponse.png →Summary
• 20:1920:19, 16 June 2006 diff hist +13 File:Zeroorderhold.signal.png →Summary