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:
Oct. 06, 1998
Filed:
Jun. 17, 1996
Fritz Rudolf Gfeller, Rueschlikon, CH;
Peter Dirk Hortensius, Goldens Bridge, NY (US);
Patrick K Kam, Pickering, CA;
Parviz Kermani, South Salem, NY (US);
Danny N McKay, Toronto, CA;
Mahmoud Naghshineh, Fishkill, NY (US);
Claus Michael Olsen, Cortlandt Manor, NY (US);
Babak Rezvani, Port Chester, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
In a wireless multi-rate communications system, a method for extending the range of communications in the system by dividing the physical layer frame into two portions: a robust header portion and a body, where the repetition rate of the data symbols in the header portion is greater than or equal to the repetition rate of the data symbols in the body of the frame. In this way the header can be received and decoded by all stations in the system with a high probability, while the body of the frame need only be received and decoded by the destination station to which the body of the frame is intended to be received and decoded.