Talk:Digital waveguide synthesis

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Untitled[edit]

This article makes absolutely NO sence to me at all. I think that the purpose of writting is to clearify, not to obscure with fancy scientific theorems and 'gobbeldy-goog'. If you are someone who can decrypt this confusing article and translate it into plain english, PLEASE help.

It's not clear to me what the difference between a "right-going" and a "left-going" wave is. Snottywong 12:34, 4 May 2007 (UTC)[reply]

At the risk of sounding facetious, one wave travels to the right, whilst the other travels to the left. Think about (or even try) two people (call them L and R) standing a few metres apart, with each holding the ends of a rope. If the person L flicks his/her hand, you will see a wave in the rope travelling towards person R. If R flicks his/her hand, you will see a wave in the rope travelling towards person L. Hence, waves can travel in either direction along the rope. What is more interesting is that if L and R flick at the same time, two pulses will travel in opposite directions; when they meet in the middle, they actually pass through each other and keep on going: the effect of two pulses is the same as the effect of the individual pulses added together (this is called linear superposition). 62.7.80.66 (talk) 09:15, 11 February 2010 (UTC)[reply]

Patent rights[edit]

The article says:

Stanford University owns the patent rights for digital waveguide synthesis and signed an agreement in 1989 to develop the technology with Yamaha.

Wouldn't a patent that existed in 1989 have expired by now? --Zundark (talk) 16:52, 18 June 2010 (UTC)[reply]

Yes. Pretty much all of the original waveguide synthesis patents have now expired, beginning in the early-mid 2010's. Why the US Patent Office continues to refuse to calculate expiration dates is simply beyond my comprehension. — Preceding unsigned comment added by Looneybunny (talk • contribs) 05:12, 16 November 2019 (UTC)[reply]

Many of the patents associated with the Yamaha VL implementation is signed by Toshifumi Kunimoto (from Yamaha K-Labs) as the inventor. Here is one from 1996 and here is a list of related works MX44 (talk) 18:09, 3 August 2010 (UTC)[reply]