Inventor

HELARD JEAN-FRANCOIS

FR11 patents

⚠️ This page may combine multiple inventors who share the name “HELARD JEAN-FRANCOIS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FRANCE TELECOM

4 patents

US5329537AJul 12, 1994

Method of maximum likelihood decoding with sub-sampled decoding trellis, and corresponding decoding device

FRANCE TELECOM20 citations92

US7725091B2May 25, 2010

Method and device for transmitting a signal in a multi-antenna system, signal, and method for estimating the corresponding transmission channels

FRANCE TELECOM6 citations70

US8358990B2Jan 22, 2013

Method and device for transmitting a signal in a multi-antenna system, signal, and method for estimating the corresponding transmission channels

FRANCE TELECOM0 citations48

US7447288B2Nov 4, 2008

Method for demodulating a signal integrating phase error effect and corresponding receiver

FRANCE TELECOM0 citations33

FRANCE ETAT

1 patent

US5197061AMar 23, 1993

Device for the transmission of digital data with at least two levels of protection and corresponding reception device

FRANCE ETAT339 citations96

ETAT FRANCAIS AND TELEDIFFUSIO

1 patent

US5274629ADec 28, 1993

Method for the broadcasting of digital data, notably for radio broadcasting at high bit rate towards mobile receivers, with time-frequency interlacing and coherent demodulation

ETAT FRANCAIS AND TELEDIFFUSIO160 citations94

FRANCE TELECOM TELEDIFFUSION D

1 patent

US6459744B1Oct 1, 2002

Multi-carrier symbol synchronization

FRANCE TELECOM TELEDIFFUSION D60 citations93

ETAT FRANCAIS TELEDIFFUSION DE

1 patent

USRE36430EDec 7, 1999

Device for the transmission of digital data with at least two levels of protection and corresponding reception device

ETAT FRANCAIS TELEDIFFUSION DE96 citations91

TELEDIFFUSION FSE

1 patent

US7023265B1Apr 4, 2006

Equalizing method in receivers using a combination of multiple carrier and code division multiple access modulating techniques

TELEDIFFUSION FSE27 citations86

HELARD JEAN-FRANCOIS

1 patent

US8804861B2Aug 12, 2014

Peak-to-average power ratio reduction in a multicarrier signal

HELARD JEAN-FRANCOIS12 citations70

INSTITUT NAT DES SCIENCES APPLIQUEES INSA

1 patent

US10361897B2Jul 23, 2019

Peak-to-average power ratio reduction in a multi-carrier signal

INSTITUT NAT DES SCIENCES APPLIQUEES INSA0 citations28