SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Technology Stocks : LAST MILE TECHNOLOGIES - Let's Discuss Them Here
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: Tim McCormick who wrote (5171)9/9/1999 7:14:00 PM
From: NY Stew  Read Replies (2) of 12823
 
Tim,

You are probably correct in your analysis about the hype but I did find a patent after searching the website: #5,606,286.

Here is the abstract. This is way over my head:


Predistortion linearization

Abstract
A linearizer has a dividing system for dividing a radio frequency signal into a first, second and third part. First and second transfer devices, each driven by the dividing system, can separately amplify the first and the second part of the signal. The first transfer device produces a higher distortion than the second with a distortion-producing, conditioning device. The second transfer device has, with respect to undistorted output components, a transfer characteristic whose output phase and amplitude substantially tracks that of the conditioning device during variations in amplitude. The first transfer device also has a retarding device serially coupled with the conditioning device for retarding signals handled at the conditioning device to produce approximately a 180 degree phase shift between the outputs of the first and the second transfer devices. A third transfer device is driven by the third part of the radio frequency signal from the dividing system. A first Wilkinson combiner coupled to the outputs of the first and the second transfer devices can produce a distortion signal corresponding to a combination of signals on the outputs of the first and the second transfer devices. A second Wilkinson combiner can combine the distortion signal with the signal on the output of the third transfer device to provide a predistortion signal.


Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  

HomeMailHotSubjectMarksPeopleMarksKeepersSettings
Terms Of UseContact UsCopyright/IP PolicyPrivacy PolicyAbout UsFAQAdvertise on SI
© 2025 Knight Sac Media.  Data provided by Twelve Data, Alpha Vantage, and CityFALCON News