Multiplex communications – Wide area network – Packet switching
Patent
1991-01-31
1993-12-28
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
455 59, 375 38, H04J 400
Patent
active
052746291
ABSTRACT:
A method for the broadcasting of digital data, intended to be received notably by mobile receivers moving about in an urban environment, that is, under conditions of multiple propagation and in the presence of parasites and jamming, enabling a coherent demodulation under such conditions of reception. This method is one for the broadcasting of digital data, notably for radio broadcasting at a high bit rate towards mobile receivers, of the type providing for the distribution of the data in the form of digital elements in the frequency-time space f-t and the transmission of symbols each constituted by a multiplex of N orthogonal carrier frequencies modulated by a set of digital elements and broadcast simultaneously, certain of the digital elements being reference elements with a value and position in the frequency-time space f-t that are known to the receivers.
REFERENCES:
patent: 4551580 (1985-11-01), Cox et al.
patent: 4601045 (1986-07-01), Lubarsky
patent: 4879711 (1989-11-01), Rosen
patent: 4881241 (1989-11-01), Pommier et al.
patent: 4881245 (1989-11-01), Walker et al.
patent: 4922483 (1990-05-01), Kobayashi
Halbert-Lassalle Roselyne
Helard Jean-Francois
Le Floch Bernard
Lemesle Jean-Michel
Etat Francais and Telediffusion de France SA
Olms Douglas W.
Ton Dang
LandOfFree
Method for the broadcasting of digital data, notably for radio b does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for the broadcasting of digital data, notably for radio b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the broadcasting of digital data, notably for radio b will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1548847