1
Marc Lanoiselee
Marc Lanoiselee: Transmission system with suppressed carrier signal amplitude modulation preserving the polarity of the transmitted signal, and corresponding transmitter and receiver. L Etat Francais, Telediffusion de France, Merchant Gould Smith Edell Welter & Schmidt, December 31, 1991: US05077542 (15 worldwide citation)

A system of transmission with amplitude modulation for the transmission of signals of all types, analog and/or digital, requiring high performance characteristics with respect to the noise induced by the transmission channel, comprising, at transmission, means for the suppressed carrier amplitude mo ...


2
Marc Lanoiselee
Lanoiselee Marc, Louin Pierrick: Procede et emetteur de radiodiffusion en oeuvre un pre-filtrage, et signal correspondant. Telediffusion de France Tdf, December 3, 2004: FR2855685-A1

L'invention concerne un procédé de radiodiffusion d'un premier signal numérique multiporteuse (51) occupant une première bande de fréquence adjacente à au moins une seconde bande de fréquence affectée chacune à un second signal (52, 53).On applique audit premier signal un pré-filtrage (54, 55), avan ...


3
Marc Lanoiselee
Lanoiselee Marc, Callonnec Denis, Renou Aptrick: Method and devices for processing a radio signal with direct analog-to-digital conversion. Telediffusion de France Tdf, November 7, 2003: FR2839401-A1

The invention concerns in particular a method for controlling an analog filter (44, 46) designed to be applied to a radio signal for converting same into a digital signal to be modulated, the demodulation including a step of frequency translation of the signal using a digital oscillator (52). It con ...


4
Marc Lanoiselee
Lanoiselee Marc, Callonnec Denis, Renou Patrick: (Fr) Procede et dispositifs pour le traitement dun signal radio a conversion analogique/numerique directe, (En) Method and devices for processing a radio signal with direct analog-to-digital conversion. Telediffusion de France, Lanoiselee Marc, Callonnec Denis, Renou Patrick, REMY Vincent, November 13, 2003: WO/2003/094349

(EN) The invention concerns in particular a method for controlling an analog filter (44, 46) designed to be applied to a radio signal for converting same into a digital signal to be modulated, the demodulation including a step of frequency translation of the signal using a digital oscillator (52). I ...


5
Louis C Guillou: System for transmitting information provided with means for controlling access to the information transmitted. Etablissement Public de Diffusion dit Telediffusion de France, L Etat Francais represente par le Secretaire d Etat aux Poste et Telecommunications, April 6, 1982: US04323921 (373 worldwide citation)

A system for transmitting information between an emitting center and receiving stations, comprising: a subscription administration center generating a plurality of subscriber's keys C.sub.i changing randomly at relatively long intervals of the order of a month; in the emitting center: a generator of ...


6
Louis C Guillou: Text video-transmission system provided with means for controlling access to the information. Etablissement Public de Diffusion dit Telediffusion de France, L Etat Francais represente par le Secretaire d Etat aux Poste et Telecommunications, June 29, 1982: US04337483 (268 worldwide citation)

A text video-transmission system comprising an information emitting center and receiving stations, the emitting center comprising encryption means using an operating key, each receiving station comprising decryption means using the operating key, wherein in this system, the encryption means of the e ...


7
Claude Berrou: Error-correction coding method with at least two systematic convolutional codings in parallel, corresponding iterative decoding method, decoding module and decoder. France Telecom, Telediffusion de France, Locke Reynolds, August 29, 1995: US05446747 (196 worldwide citation)

An error-correction method for the coding of source digital data elements to be transmitted or broadcast, notably in the presence of high transmission noise, the method comprising at least two independent steps of systematic convolutional coding, each of the coding steps taking account of all of the ...


8
Pierre Bonicel, Jean Pierre Heon, Christian Gautier: Device for the intelligible consultation of data relating to the fees programs of a subscription television and/or radio service. Centre National d Etudes des Telecommunications, Telediffusion de France, Locke Reynolds, August 10, 1993: US05235415 (192 worldwide citation)

A device for allowing fee paying subscribers access to television or radio programs includes a keyboard unit for requesting messages concerning the programs. Information describing the program fees and account status is contained in a subscriber held security processor such as a smart card. As a fun ...


9
Roselyne Halbert Lassalle, Jean Francois Helard, Bernard Le Floch: Device for the transmission of digital data with at least two levels of protection and corresponding reception device. Etat Francais, Telediffusion de France, Locke Reynolds, March 23, 1993: US05197061 (180 worldwide citation)

A device for the transmission of digital data with at least two levels of protection, of the type providing for the distribution of the data to be transmitted in the form of digital elements in the time-frequency space and the transmission of symbols each formed by a multiplex of N orthogonal carrie ...


10
Bernard Le Floch, Jean Christophe Rault, Daniel Pommier, Damien Castelain: Method for the broadcasting of digital data, notably for radio broadcasting at a high bit-rate towards mobile receivers, with time-frequency interlacing and assistance in the acquisition of automatic frequency control, and corresponding receiver. Centre National d Etudes des Telecommunications, Telediffusion de France, Locke Reynolds, July 13, 1993: US05228025 (158 worldwide citation)

A method for the broadcasting of digital data, in channels to which multiple paths are assigned, the characteristics of which vary in time, with time-frequency interlacing and assistance in the acquisition of the automatic frequency control. This method is one of the type providing for the distribut ...