Title:
受信を簡単化するように編成されたOFDM信号
Document Type and Number:
Japanese Patent JP3827718
Kind Code:
B2
Abstract:
The invention relates to a signal intended to be transmitted towards a plurality of receivers, of the type comprising at least two source signals and consisting of a plurality of independently modulated substantially orthogonal carrier frequencies distributed over a predetermined frequency band. According to the invention, said frequency band (12) is divided into at least two frequency sub-bands (131-134) each comprising a set of said substantially orthogonal carrier frequencies (11), and to each of said sub-bands is allocated one of said source signals, so that a receiver may retrieve from the transmitted signal, by filtration, at least one of said sub-bands and perform demodulation processing only on the carrier frequencies contained in the retrieved sub-bands. The invention also relates to a transmission process as well as to a receiver of such signal.
Inventors:
Mision, Vincent
Le Froche, Bernard
Surreal, Bertrand
Riviere, Marc
Le Froche, Bernard
Surreal, Bertrand
Riviere, Marc
Application Number:
JP50173296A
Publication Date:
September 27, 2006
Filing Date:
June 13, 1995
Export Citation:
Assignee:
FRANCE TELECOM
Teredi fuzion de france
Teredi fuzion de france
International Classes:
H04J11/00; H04L5/02; H04L27/26; H04N5/00; H04N5/44
Domestic Patent References:
| JP7283801A | ||||
| JP715392A | ||||
| JP715393A | ||||
| JP7274142A |
Attorney, Agent or Firm:
Nao Okuyama
Akiyama Noburi
Shoichi Okuyama
Arihara Koichi
Akiyama Noburi
Shoichi Okuyama
Arihara Koichi