Holographic imaging

I take great pleasure in hearing and speaking about concepts and tweaks that cost only a few dollars and make more fundamental difference in sound quality than what a blowviating dealer may offer for thousands and is obsolete in weeks or months. Tom

Amazing that an ego attached to a design such as the original H-Cat would attest to a possible flaw and then decide to publish a fix. I think thats great! Live and learn and learn a whole lot more. So many designers and manufacturers never fess up to their mis calculations in design or production. I think this is a progressive reality of the ongoing design process and not a flaw but a tribute to the designer/builder. Tom

There was a tube amp some years back that had a front panel selector to adjust the amount of negative feedback.Click..click click. The reviewer a friend and co worker of mine felt that the 6db selction point of feedback was to his preference. His thoughts were that his choice was a combination of texture, speed and detail. Zero feedback was to fat and slow to much feedback was thin and slightly bright. I have not heard the H-Cat..but negative feedback is not in the brew here. Tom

Grant,

I can tell you from personal experience patents are a very expensive proposition. Once you have obtained a patent and its published it is open for all to see. A 20 percent change in the original design is often all that is nessasary to get around the original design. If you have the bucks to litigate well then you may have a chance. If you don't, then think twice about doing so. Electronic circuits sometimes are potted with material that disguise whats in side. If you remove the potting material you may destroy the design underneath. I suppose you could always x-ray the underneath. Also in prototype developement when the product is tested or any pre release publicity is issued describing the product in drawing or photos you have one year from the first disclosure date to file for patent protection. Tom

Grant.

Sorry I jumped in line here. Like I said this was my own personal experience. I did speak to Roger about a year ago, about the Doppler effect. I have never heard his products anywhere anytime. I hope too encounter them at some time. I had to recently reconsider this whole patent process again, its costs and its benefits. Further enhancements to your existing patent requires more disclosure and more money. So Grant when I saw your question of Roger I was relating my own recent re experience. Tom