The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 1999
Filed:
May. 10, 1996
Chandos A Rypinski, Mill Valley, CA (US);
Other;
Abstract
The function addressed is that of adaptive equalization to mitigate the effects of multiple path radio propagation in the context of point-to-multipoint, time division duplexed microwave radio systems. Without this equalization, fading and intersymbol interference degrades the accuracy of the recovered bit stream. This degradation of the received signal is caused by the vector sum of multiple copies of the transmitted signal arriving with various time offsets and amplitudes. The method employed uses a single training symbol per frame common for all time division multiplexed derived channels rather than one for each channel and for both up and down directions. Compensation is applied at each station transmitter rather than separately equalizing each received signal at the common receiver.