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:
Sep. 19, 1995
Filed:
Apr. 06, 1993
Jean-Claude Rahuel, Rennes, FR;
Daniel Pommier, Rennes, FR;
France Telecom, Paris, FR;
Telediffusion de France, Paris, FR;
Abstract
A method for the transmission of digital data elements including radio paging information elements, wherein the data elements are transmitted according to a technique of transmission implementing a plurality of orthogonal carrier frequencies (the COFDM technique), the signal being organized in frames comprising, firstly, at least one first channel called a fast information channel, comprising at least one symbol of data elements, the carrier frequencies of the symbols being modulated by data elements that are not temporally interleaved, and at least one second channel, called a main channel, comprising at least one symbol of data elements, the carrier frequencies of the symbols being modulated by data elements that are temporally interleaved beforehand, a frame number belonging to a set of predefined frame numbers being regularly inserted into the fast information channel, each of the radio paging receivers being assigned at least one of the frame numbers.