Delta-sigma modulation: Revision history

12 July 2024

• curprev 06:0506:05, 12 July 2024‎ Citation bot talk contribs‎ 59,831 bytes +86‎ Alter: title, template type. Add: chapter-url, chapter, volume, series. Removed or converted URL. Removed parameters. Some additions/deletions were parameter name changes. | Use this bot. Report bugs. | Suggested by Abductive | Category:Digital signal processing | #UCB_Category 119/203 undo

5 July 2024

• curprev 21:0121:01, 5 July 2024‎ R Dennis Cote talk contribs‎ m 59,745 bytes −5‎ removed extraneous "more" undo Tag: Visual edit

4 June 2024

• curprev 23:1823:18, 4 June 2024‎ Citation bot talk contribs‎ 59,750 bytes +121‎ Altered template type. Add: isbn, issue, volume, journal, chapter-url, pages, chapter. Removed or converted URL. Removed parameters. Some additions/deletions were parameter name changes. | Use this bot. Report bugs. | Suggested by Headbomb | #UCB_toolbar undo

19 April 2024

• curprev 06:4306:43, 19 April 2024‎ Trampolineschnitzel talk contribs‎ m 59,629 bytes +9‎ Disambiguating links to Integration (link changed to Integral) using DisamAssist. undo

27 March 2024

• curprev 21:4621:46, 27 March 2024‎ Mazewaxie talk contribs‎ m 59,620 bytes −184‎ WP:GENFIXES undo Tag: AWB

26 March 2024

• curprev 13:2713:27, 26 March 2024‎ 212.133.24.194 talk‎ 59,804 bytes −109‎ removed non-neutral, opinionated comment that has no added value to the article. undo Tag: Visual edit

25 March 2024

• curprev 00:0200:02, 25 March 2024‎ Notcough talk contribs‎ m 59,913 bytes −1‎ Fixed typo in simplified circuit example undo

16 March 2024

• curprev 20:1720:17, 16 March 2024‎ Em3rgent0rdr talk contribs‎ 59,914 bytes +9‎ →‎Asynchronous delta-sigma modulation: adding the specific page number in the thesis that supports this sentence. undo Tag: Visual edit
• curprev 20:1420:14, 16 March 2024‎ Em3rgent0rdr talk contribs‎ 59,905 bytes −27‎ →‎Asynchronous delta-sigma modulation: tweaked some wording undo Tag: Visual edit
• curprev 20:0020:00, 16 March 2024‎ Em3rgent0rdr talk contribs‎ 59,932 bytes +54‎ →‎Asynchronous delta-sigma modulation: some bit on how this noise can be shaped undo Tag: Visual edit
• curprev 19:1419:14, 16 March 2024‎ Em3rgent0rdr talk contribs‎ 59,878 bytes +624‎ →‎Asynchronous delta-sigma modulation: a bit about time-to-digial and no noise shaping undo Tag: Visual edit
• curprev 09:3409:34, 16 March 2024‎ Em3rgent0rdr talk contribs‎ 59,254 bytes +294‎ Some article is saying there is no quantization noise with async...I might have to read it closely though. undo Tags: Mobile edit Mobile web edit Advanced mobile edit
• curprev 08:5108:51, 16 March 2024‎ Em3rgent0rdr talk contribs‎ 58,960 bytes +110‎ →‎Higher-order modulator: that Razavi citation also gives an important tidbit on how this cascading comes about...the first step is to replace the quantizer itself with another ΔΣ modulator, and then they are rearranged to appear in a cascaded fashion. So some rewording to fit that in. undo Tag: Visual edit
• curprev 08:2008:20, 16 March 2024‎ Em3rgent0rdr talk contribs‎ 58,850 bytes +29‎ →‎Improvement over delta modulation: mark and space is better than "pulses" here, because the word "pulse" is more often just associated with positive pulses, but with delta modulation's output, the widths of the spaces as well as the marks contain information. undo Tag: Visual edit
• curprev 08:1508:15, 16 March 2024‎ Em3rgent0rdr talk contribs‎ 58,821 bytes +17‎ →‎Improvement over delta modulation: some rearranging to group all of delta's downsides together a little better undo Tag: Visual edit: Switched
• curprev 08:0808:08, 16 March 2024‎ Em3rgent0rdr talk contribs‎ 58,804 bytes +135‎ →‎Improvement over delta modulation: copying the Razavi citation here when talking about Delta modulation, cause he gives a useful bit on how differentiation alters the spectrum that ties in well here. undo Tag: Visual edit
• curprev 07:3807:38, 16 March 2024‎ Em3rgent0rdr talk contribs‎ 58,669 bytes +281‎ →‎History and variations: added an obituary of a Charles B Brahm which seems certainly to be this this same inventor (same company as in the patent) undo Tag: Visual edit
• curprev 07:2907:29, 16 March 2024‎ Em3rgent0rdr talk contribs‎ 58,388 bytes −272‎ →‎History and variations: shortened the caption of patent Fig 1 undo Tag: Visual edit
• curprev 07:1707:17, 16 March 2024‎ Em3rgent0rdr talk contribs‎ 58,660 bytes +28‎ →‎History and variations: referring to this figure as "Fig 1 of US Patent #3192371"...hopefully this won't be confused with "Figure 1" earlier in the article (I don't want to bump up figure numbers right now anway). undo Tag: Visual edit
• curprev 07:1407:14, 16 March 2024‎ Em3rgent0rdr talk contribs‎ 58,632 bytes +1,539‎ →‎History and variations: Turns out a Charles B Brahm filed a patent the year prior to Inose, so I've added that, with a pic from the patent figure. undo Tag: Visual edit: Switched

12 March 2024

• curprev 21:3921:39, 12 March 2024‎ R Dennis Cote talk contribs‎ m 57,093 bytes 0‎ Correct reference to figure 8b undo Tag: Visual edit

20 February 2024

• curprev 08:4708:47, 20 February 2024‎ Citation bot talk contribs‎ 57,093 bytes −4‎ Alter: template type, url, pages. URLs might have been anonymized. Add: doi, pages, volume, journal, authors 1-1. Removed parameters. Formatted dashes. Some additions/deletions were parameter name changes. | Use this bot. Report bugs. | Suggested by Headbomb | Linked from Wikipedia:WikiProject_Academic_Journals/Journals_cited_by_Wikipedia/Sandbox2 | #UCB_webform_linked 201/933 undo

19 February 2024

• curprev 00:2300:23, 19 February 2024‎ Em3rgent0rdr talk contribs‎ 57,097 bytes −3‎ →‎Asynchronous delta-sigma modulation undo Tag: Visual edit

18 February 2024

• curprev 23:4923:49, 18 February 2024‎ Em3rgent0rdr talk contribs‎ 57,100 bytes −10‎ →‎Asynchronous delta-sigma modulation: magenta is closer to the color undo Tag: Visual edit

17 February 2024

• curprev 21:4121:41, 17 February 2024‎ Em3rgent0rdr talk contribs‎ 57,110 bytes +55‎ →‎Asynchronous delta-sigma modulation: colors in figure needed to be corrected. The error limits are the grey lines of the middle plot. Maybe better if the figure was redone using unique and easy-to-spell colors for each plot, clearly labeled. undo Tag: Visual edit
• curprev 21:3321:33, 17 February 2024‎ Em3rgent0rdr talk contribs‎ 57,055 bytes +564‎ →‎Asynchronous delta-sigma modulation: moved the figure from the PWM article here, where its explanation is more appropriate and understandable. undo Tag: Visual edit

16 February 2024

• curprev 18:5718:57, 16 February 2024‎ Em3rgent0rdr talk contribs‎ 56,491 bytes +12‎ →‎Theoretical effective number of bits: can no longer speak of the color "green" due to the last edit, so say "higher-resolution cells" instead. undo Tag: Visual edit
• curprev 16:2716:27, 16 February 2024‎ Ftrebien talk contribs‎ m 56,479 bytes −691‎ →‎Theoretical effective number of bits: Table cell shading with sufficient contrast (MOS:COLORS) undo

28 January 2024

• curprev 03:2703:27, 28 January 2024‎ Em3rgent0rdr talk contribs‎ 57,170 bytes −9‎ →‎Analysis of ΔΣ ADC modulation loop in Laplace domain: figured out shorter wording to introduce this equation. undo Tag: Visual edit
• curprev 03:1203:12, 28 January 2024‎ Em3rgent0rdr talk contribs‎ 57,179 bytes +177‎ →‎Analysis of synchronous ΔΣ ADC modulation loop in Laplace domain: Add that the integrator is simply assumed to be ideal here to keep math simple. I'm thinking now this laplace analysis is simplified and general enough that it isn't necessarily only synchronous or only asyncronous, so removing that word synchronous. undo Tag: Visual edit

25 January 2024

• curprev 17:1117:11, 25 January 2024‎ Em3rgent0rdr talk contribs‎ 57,002 bytes +14‎ →‎Improvement over delta modulation: slip slope overload into separate sentence for grammar purposes. undo Tag: Visual edit
• curprev 17:0917:09, 25 January 2024‎ Em3rgent0rdr talk contribs‎ 56,988 bytes +61‎ →‎Improvement over delta modulation: rearrangment/tweaking of these sentences, so talk of delta modulation is all in this section's first paragraph undo Tags: Visual edit: Switched Disambiguation links added
• curprev 07:1907:19, 25 January 2024‎ Em3rgent0rdr talk contribs‎ 56,927 bytes +315‎ →‎Improvement over delta modulation: attempt at a layman explanation of DSM's ability to high-pass filter the noise by having the integrator low-pass filter the accumulated error and then subtract that. undo Tag: Visual edit
• curprev 06:3306:33, 25 January 2024‎ InternetArchiveBot talk contribs‎ 56,612 bytes +122‎ Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.9.5 undo

19 January 2024

• curprev 17:1117:11, 19 January 2024‎ Em3rgent0rdr talk contribs‎ 56,490 bytes +52‎ →‎Noise shaping: hyperlink these first instances of continuous-time and discrete-time undo Tag: Visual edit
• curprev 17:0717:07, 19 January 2024‎ Em3rgent0rdr talk contribs‎ 56,438 bytes +3‎ specify clock if for quantization undo Tag: Visual edit
• curprev 17:0617:06, 19 January 2024‎ Em3rgent0rdr talk contribs‎ 56,435 bytes +161‎ forgot to finish this sentence. undo Tag: Visual edit
• curprev 17:0217:02, 19 January 2024‎ Em3rgent0rdr talk contribs‎ 56,274 bytes +1,169‎ clarify in intro that most of this article deals with synchronous and add ending section "Asynchronous delta-sigma modulation" undo Tag: Visual edit

4 January 2024

• curprev 00:2000:20, 4 January 2024‎ Em3rgent0rdr talk contribs‎ 55,105 bytes +31‎ →‎Subsequent decimation: -13*N dB for first sideload height is a useful stat to know, though maybe getting into too many details. undo Tag: Visual edit
• curprev 00:1200:12, 4 January 2024‎ Em3rgent0rdr talk contribs‎ 55,074 bytes +69‎ →‎Subsequent decimation: and "rearranging for efficiency" undo Tag: Visual edit
• curprev 00:0700:07, 4 January 2024‎ Em3rgent0rdr talk contribs‎ 55,005 bytes −38‎ →‎Subsequent decimation: adding sinc^1 as another name of the simple moving average filter, cause they are called by that, cause really they are a specific case of sinc^N filter. undo Tag: Visual edit

3 January 2024

• curprev 23:4923:49, 3 January 2024‎ Em3rgent0rdr talk contribs‎ 55,043 bytes 0‎ →‎Subsequent decimation: "nulls" might be a better word I was looking for than "nodes"....a picture would make this clear, but these are where there is %100 attenuation. undo Tag: Visual edit
• curprev 23:4723:47, 3 January 2024‎ Em3rgent0rdr talk contribs‎ 55,043 bytes +459‎ →‎Subsequent decimation: add sentence on compensation filters for sinc. undo Tag: Visual edit
• curprev 21:5521:55, 3 January 2024‎ Em3rgent0rdr talk contribs‎ 54,584 bytes +906‎ →‎Subsequent decimation: Figures 7-9 of the Lyons article I added do a good job explaining this better than words...maybe I should make a similar diagram illustrating this, with examples of narrower bandwidths getting even less aliased high frequency content. undo Tag: Visual edit
• curprev 07:5407:54, 3 January 2024‎ Em3rgent0rdr talk contribs‎ 53,678 bytes −155‎ Remove subbulleting. undo Tags: Visual edit Mobile edit Mobile web edit Advanced mobile edit
• curprev 07:3007:30, 3 January 2024‎ Em3rgent0rdr talk contribs‎ 53,833 bytes −280‎ →‎Subsequent decimation: I can't make heads or tails of the "optimum" but I don't like having "is close to optimum". Tried to dig up the original Candy paper which was referenced, but it is too dense for me to understand currently...but tried to copy wording close to original. undo Tag: Visual edit

12 December 2023

• curprev 23:2923:29, 12 December 2023‎ Em3rgent0rdr talk contribs‎ 54,113 bytes +5‎ →‎Subsequent decimation: slight grammer issue undo Tag: Visual edit
• curprev 23:2823:28, 12 December 2023‎ Em3rgent0rdr talk contribs‎ 54,108 bytes +1‎ →‎Subsequent decimation: slight comma grammer issue undo Tag: Visual edit
• curprev 23:2623:26, 12 December 2023‎ Em3rgent0rdr talk contribs‎ 54,107 bytes −50‎ →‎Subsequent decimation: slight grammar tweaks & shorten wording a tad. undo Tag: Visual edit
• curprev 23:1823:18, 12 December 2023‎ Em3rgent0rdr talk contribs‎ 54,157 bytes +281‎ →‎Subsequent decimation: moving the analog devices chapter on windowed sinc citation to appear at the end of this paragraph, since every statement (and a couple more I added), except that it is de-facto-standard for hi-fi audio, which I've separated into a subbullet point, maybe a citation can be added in the future. undo Tag: Visual edit