Patents by Inventor Michel Maignan
Michel Maignan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 8922296Abstract: An amplification device with reduced bulk including at least one plate parallel to a plane XY and at least two amplifier modules mounted on the plate, each amplifier module including an amplifier element, an input connection waveguide, and an output connection waveguide oriented in one and the same direction X corresponding to a direction of longitudinal propagation, the amplifier element having an input and output axis oriented in a direction Y perpendicular to the direction of propagation X, wherein the input connection waveguides of the amplifier modules are distinct, have different lengths and are mounted in parallel to one another, the output connection waveguides of the amplifier modules are distinct, have different lengths and are mounted in parallel to one another, and the sum of the lengths of the input and output guides of one and the same amplifier module is identical for each amplifier module.Type: GrantFiled: April 21, 2010Date of Patent: December 30, 2014Assignee: ThalesInventors: Jean-Philippe Fraysse, Michel Maignan
-
Publication number: 20120056669Abstract: An amplification device with reduced bulk including at least one plate parallel to a plane XY and at least two amplifier modules mounted on the plate, each amplifier module including an amplifier element, an input connection waveguide, and an output connection waveguide oriented in one and the same direction X corresponding to a direction of longitudinal propagation, the amplifier element having an input and output axis oriented in a direction Y perpendicular to the direction of propagation X, wherein the input connection waveguides of the amplifier modules are distinct, have different lengths and are mounted in parallel to one another, the output connection waveguides of the amplifier modules are distinct, have different lengths and are mounted in parallel to one another, and the sum of the lengths of the input and output guides of one and the same amplifier module is identical for each amplifier module.Type: ApplicationFiled: April 21, 2010Publication date: March 8, 2012Applicant: THALESInventors: Jean-Philippe Fraysse, Michel Maignan
-
Patent number: 7200334Abstract: The invention relates to a system for conveying digital signals inside a space vehicle between a transmitter and a receiver. In the invention, the link between the transmitter and the receiver comprises a first portion made of optical fiber and a second portion in which infrared radiation propagates without guidance. A particular application lies in conveying remote control and telemetry signals within a satellite between a control module and a piece of equipment.Type: GrantFiled: November 26, 2002Date of Patent: April 3, 2007Assignee: AlcatelInventors: Jean-Didier Gayrard, Michel Sotom, Michel Maignan
-
Patent number: 7158726Abstract: The invention relates to a communications backbone interface between at least three members of a communications network for a space vehicle. In the invention, the interface combines various signals received at inlets, which signals may be analog, digital, and optical, coming from two members, and produces a multiplexed optical signal for delivery to a member of the vehicle, such as a piece of equipment. The invention also provides to a communications terminal interface, a communications network having such interfaces, and an optical fiber harness.Type: GrantFiled: November 26, 2002Date of Patent: January 2, 2007Assignee: AlcatelInventors: Jean-Didier Gayrard, Michel Sotom, Michel Maignan
-
Patent number: 7001656Abstract: The invention relates to a rigid multilayer material for thermal insulation, in particular in a vacuum, the material comprising at least one insulating plate of honeycomb material sandwiched between two aluminum- or gold-coated skins of low emissivity. In order to optimize thermal insulation, the diameter of the cells is at least twice their height. The multilayer material may have as many layers as needed. The cells of adjacent layers may be offset in order to further minimize paths for heat conduction through the structure. Holes may be pierced in the side walls of the cells in order to allow them to empty out when the material is put into a vacuum. The invention also provides a method of making such a material.Type: GrantFiled: April 23, 2003Date of Patent: February 21, 2006Assignee: AlcatelInventors: Michel Maignan, Thierry Youssefi, Bertrand Brevart
-
Publication number: 20030207075Abstract: The invention relates to a rigid multilayer material for thermal insulation, in particular in a vacuum, the material comprising at least one insulating plate of honeycomb material sandwiched between two aluminum- or gold-coated skins of low emissivity. In order to optimize thermal insulation, the diameter of the cells is at least twice their height. The multilayer material may have as many layers as needed. The cells of adjacent layers may be offset in order to further minimize paths for heat conduction through the structure. Holes may be pierced in the side walls of the cells in order to allow them to empty out when the material is put into a vacuum. The invention also provides a method of making such a material.Type: ApplicationFiled: April 23, 2003Publication date: November 6, 2003Applicant: ALCATELInventors: Michel Maignan, Thierry Youssefi, Bertrand Brevart
-
Publication number: 20030123879Abstract: The invention relates to a communications backbone interface between at least three members of a communications network for a space vehicle. In the invention, the interface combines various signals received at inlets, which signals may be analog, digital, and optical, coming from two members, and produces a multiplexed optical signal for delivery to a member of the vehicle, such as a piece of equipment. The invention also provides to a communications terminal interface, a communications network having such interfaces, and an optical fiber harness.Type: ApplicationFiled: November 26, 2002Publication date: July 3, 2003Applicant: ALCATELInventors: Jean-Didier Gayrard, Michel Sotom, Michel Maignan
-
Publication number: 20030113121Abstract: The invention relates to a system for conveying digital signals inside a space vehicle between a transmitter and a receiver. In the invention, the link between the transmitter and the receiver comprises a first portion made of optical fiber and a second portion in which infrared radiation propagates without guidance. A particular application lies in conveying remote control and telemetry signals within a satellite between a control module and a piece of equipment.Type: ApplicationFiled: November 26, 2002Publication date: June 19, 2003Applicant: ALCATELInventors: Jean-Didier Gayrard, Michel Sotom, Michel Maignan
-
Patent number: 5493704Abstract: Protection means (6, 18) are associated with the radiating system (16) of a transmitter constituting a radiotelephone (4). The purpose of the protection means is to reduce the amount of radiation that is intercepted, i.e. the proportion of the emitted radiation (20) that is intercepted by the body of the user (2), so as to enable the overall power of the radiation to be increased. In accordance with the invention, said protection means include a casing (18) ensuring that safe distances (33, 34, 35) are maintained between the radiating system and the body of the user. The protection means further include a screen (6) that absorbs the radiation. The invention applies in particular to long-range radiotelephones.Type: GrantFiled: December 16, 1993Date of Patent: February 20, 1996Assignee: Alcatel N.V.Inventors: Christophe Grangeat, Francois Moisson-Franckhauser, Michel Maignan
-
Patent number: 5442360Abstract: The calibration apparatus (16) includes a recirculating optical delay loop (22) constituted by two delaying fibers (F2, F3), an optical amplifier (28), and a coupler (26) for providing a succession of a plurality of delayed optical signals (OR) in response to a single initial signal (OA). The invention is particularly to radars.Type: GrantFiled: December 21, 1992Date of Patent: August 15, 1995Assignee: Alcatel N.V.Inventors: Michel Maignan, Gilles Vendrome
-
Patent number: 5247596Abstract: The optical connection to a fiber-optics connected optoelectronic device mounted on a substrate is made by an optical fiber inserted in a hole through the substrate facing the component. The walls of the hole align and locate the fiber. The invention finds an application in the manufacture of a balanced optoelectronic receiver for a coherent detection fiber-optics transmission system.Type: GrantFiled: February 6, 1992Date of Patent: September 21, 1993Assignee: Alcatel N.V.Inventors: Michel Maignan, Jean Ducate