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. 29, 1997
Filed:
Oct. 11, 1994
Applicant:
Inventor:
Gregory W Wornell, Wellesley, MA (US);
Assignee:
Lucent Technologies Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
375206 ; 375296 ; 380 43 ;
Abstract
Method and apparatus for preparing a message stream of symbols for wireless transmission by pre-coding it through convolution with a characteristic 'signature' of predetermined symbols identifying a particular user of the message system. The time duration of the signature should exceed the inter-symbol interval of the message stream in order to reduce the likelihood of error caused by fading in the transmission channel.
Wornell, Gregory. (1997). Spread-response precoding system having signature sequences longer than (U.S. Patent No. 5625642). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5625642
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile