.... i ve seen your pic, and compare with my horns.... Realy, the curve is not the same...
I have plans of the TAD and will compare the steps of the curve from the throw to the mouth...
.... i ve seen your pic, and compare with my horns.... Realy, the curve is not the same...
I have plans of the TAD and will compare the steps of the curve from the throw to the mouth...
I own since a few days four PDF files wich may contain useful informations as they are the Naota Iwata patents. Unfortunately, they are written in japanese and have been saved in image form only : I couldn't use Babelfish to translate...frustrating!!!Originally Posted by Mr. Widget
I would appreciate any help to solve this problem. The pdf are joined to my message.
52-48310 , 54-59129 , 54-45120 , JP 55 133 198. JP52048310_Iwata.pdf
JP54045120_Iwata.pdf
JP55133198A.pdf
JP54059129A.pdf
Thanks.
Best regards,
Luc
Thank you for your input!
It seems to be like a secret.Originally Posted by lucfm
Looking at the pdfs you will notice that each consists of several pages. There are tables and drawings. It is readily identifiable that this horn should create a sperical wavefront with growing radius.
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Peter
Why don't you ask Don Mc Ritchie for translating . I am sure he now has a lot of nice .... friends in Japan after his tokyo trip .
Gerard
That would be a nice idea...don't you think , Don ??
Seriously, the Iwata patents can't be translated by the Japanese Patent Office free translation computer ( too old ( 1980 ) , only available for patents later than 1993 ) and the characters images saved in the pdf files cannot be recognised by OCR.
The JP,55-133198,A ( 1980 ) seems to be the most interesting, followed by the 54-59129 and than the 52-48310 ( seems to be an original reactance annulling technique ).
Obviously, any information that could unveil some of the mystery about these excellent horns would be welcome.
Best regards,
Luc
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