1
Marc Darmon, Philippe Sadot, Sami Harari: Interleaving method for a digital transmission system. Alcatel Transmission par Faisceaux Hertziens, Sughrue Mion Zinn Macpeak & Seas, October 8, 1991: US05056105 (45 worldwide citation)

A psuedo-random interleaving method suitable for use in transmitting digital data. A pseudo-random pilot sequence is used for simultaneously reading from and writing to a vector of size Tv.gtoreq.Tc.times.Lm, the pilot sequence satisfying a minimum distance law Lm, except when blocking occurs. Deint ...


2
Marc Darmon, Marc Pontif, Philippe Sadot: Method of automatically requesting retransmission in a duplex digital transmission system having at least one noisy return channel, and an installation for implementing the method. Alcatel Transmission Par Faisceaux Hertziens A T F H, Sughrue Mion Zinn Macpeak & Seas, January 9, 1996: US05483545 (11 worldwide citation)

A go-back-N automatic repeat request method for use on a duplex installation having noisy return channels. When an acknowledge signal (ACK) is not correctly received, it is assumed to be positive until the Nth successive incorrectly received acknowledgement, which is treated as a negative acknowledg ...


3
Marc Darmon, Andre Bazet, Pascal Brelivet: Method and apparatus for sequentially decoding a digital stream encoded by a convolution type error-correcting code. Alcatel Transmission par Faisceaux Hertziens A T F H, Sughrue Mion Zinn Macpeak & Seas, July 12, 1994: US05329536 (7 worldwide citation)

A method and apparatus for sequential decoding using the stack algorithm. A stack is used which is small in size and which has a leaky bottom. A counter stores the total count of nodes observed so as to abandon decoding if this count exceeds a fixed value. A comparator continuously compares the metr ...


4
Marc Darmon, Marc Pontif, Philippe Sadot: Method and apparatus for digital data transmission with automatic repeat request. Alcatel Transmission Par Faisceaux Hertziens A T F H, Sughrue Mion Zinn Macpeak & Seas, May 17, 1994: US05313473 (7 worldwide citation)

Enough room is provided in a transmitted frame to receive a plurality (n) of useful information blocks, thereby making it possible to catch up any excessive lateness (r) which may arise due to successive repeats. The decoder (2) provides a confidence flag (3) to the controlling microprocessor (5). T ...


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Philippe Sadot, Bertrand Thebault, Marc Darmon, Jacques Eudes: Method of detecting a disturbing signal for a digital data demodulator, and apparatus implementing such a method. Alcatel Telspace, Sughrue Mion Zinn Macpeak & Seas, May 17, 1994: US05313497 (2 worldwide citation)

A method of detecting a disturbing signal for demodulating digital data, wherein, on the modulated signal transposed into baseband, the disturbing signal is detected by periodically inserting known signals by means of a fixed guard time delay ((R+I)T.sub.s) applied to the received signal prior to de ...


7
Marc Darmon, Philippe Sadot: Method of establishing an inverse pilot-sequence for deinterleaving as used in digital transmission. Alcatel Transmission par Faisceaux Hertziens, Sughrue Mion Zinn Macpeak & Seas, December 22, 1992: US05173902 (1 worldwide citation)

A method of establishing an inverse pilot sequence for deinterleaving as used in digital transmission, with the interleaving being performed by means of a transmit register and a pilot sequence. Each portion (2 5 1 4 3 6) of the inverse pilot sequence is obtained from the preceding portion (3 1 6 5 ...


8
Philippe Sadot, Bertrand Thebault, Marc Darmon, Jacques Eudes: Method for the coherent demodulation of psk and apparatus for the implementation of the method.. Alcatel Telspace, August 7, 1992: FR2672454-A1

The present invention relates to a system of coherent demodulation for phase-shift keying comprising: - a step of estimating the phase from a sequence of reference symbols sent at the start of each data block; - then a step of second-order phase locking. The present invention also relates to a devic ...


9
Marc Darmon, Marc Pontif, Philippe Sadot: Method and device for digital information transmission with automatic retransmission request, or "arq".. Alcatel Transmission, May 31, 1991: FR2655222-A1

Method and device for digital information transmission, with automatic retransmission request should the message be poorly received. There is provision, in the transmitted frame, for sufficient room to be able to receive several (n) useful information blocks, so as to reabsorb an excessive delay of ...


10
Philippe Sadot, Bertrand Thebault, Marc Darmon, Jacques Eudes: Method for detecting an interfering signal for a digital data demodulator and apparatus for the implementation of such a method.. Alcatel Telspace, August 7, 1992: FR2672453-A1

The invention relates to a method of detecting an interfering signal for a digital data demodulator, in which this signal detection takes place with regard to the modulated signal transposed into baseband by virtue of the periodic insertion of known signals and by means of delaying the signals recei ...