Patents by Inventor Guy Harles
Guy Harles 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).
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Patent number: 8749431Abstract: A system for estimating a spacecraft (6) position is disclosed. It includes receiving stations (4) for receiving signals transmitted from the spacecraft (6) and a processing station (2) for receiving data from the receiving stations (4). Each receiving station (4) records, during a recording window (8), the signals transmitted from the spacecraft (6) and transmits, to the processing station (2), data representing the recorded signals during the recording window (8). The recording windows (8) associated with each of the receiving stations (4) are offset and/or of different size with respect to each other. The processing station (2) correlates the recorded signals to estimate the distance difference between the spacecraft (6) and each of a plurality of receiving stations and to estimate the spacecraft (6) position. A method, a receiving station (4), a processing station (2) and a computer program are also disclosed.Type: GrantFiled: July 23, 2009Date of Patent: June 10, 2014Assignee: SES Astra S.A.Inventors: Marc Thill, Guy Harles, Markus Gross, Jos Wouters, Georges Krier
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Publication number: 20110221631Abstract: A system for estimating a spacecraft (6) position is disclosed. It includes receiving stations (4) for receiving signals transmitted from the spacecraft (6) and a processing station (2) for receiving data from the receiving stations (4). Each receiving station (4) records, during a recording window (8), the signals transmitted from the spacecraft (6) and transmits, to the processing station (2), data representing the recorded signals during the recording window (8). The recording windows (8) associated with each of the receiving stations (4) are offset and/or of different size with respect to each other. The processing station (2) correlates the recorded signals to estimate the distance difference between the spacecraft (6) and each of a plurality of receiving stations and to estimate the spacecraft (6) position. A method, a receiving station (4), a processing station (2) and a computer program are also disclosed.Type: ApplicationFiled: July 23, 2009Publication date: September 15, 2011Applicant: SES AstraInventors: Marc Thill, Guy Harles, Markus Gross, Jos Wouters, Georges Krier
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Publication number: 20090213000Abstract: The invention refers to a location method and location apparatus for determining the location of a stationary satellite receiver having a stationary satellite antenna by means of ranging packets within satellite payload signals.Type: ApplicationFiled: June 30, 2006Publication date: August 27, 2009Applicant: SES ASTRA S.A.Inventors: Markus Gross, Georges Krier, Guy Harles
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Patent number: 7539456Abstract: The invention refers to a satellite communications system with a mobile user terminal. In order to provide a satellite communications system which enables communication with a mobile user terminal via conventional communication satellites on any area of interest on earth, a quasi-geostationary satellite is operated in an inclined orbit and sends a spread downlink signal s? (t) to said area of interest on earth to be received and despreaded by a mobile user terminal.Type: GrantFiled: February 20, 2003Date of Patent: May 26, 2009Assignee: SES Astra S.A.Inventors: Guy Harles, Gerhard Bethscheider
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Patent number: 7512505Abstract: A ranging system determines ranging information of a spacecraft carrying a component of a communication channel. In order to provide a ranging system for determining ranging information of a satellite carrying a transponder as well as to provide a method thereof which yield a sufficient accuracy without causing further costs when narrow spot beams by the transponder are used, a ranging system includes a plurality of receiving stations at different locations on earth, wherein each receiving station is arranged for receiving a reference signal from the component; a synchronization unit for providing a synchronized time base between the plurality of receiving stations; a calculation unit for calculating the ranging information in accordance with the propagation time of each received reference signal and with the synchronized time base; wherein at least one receiving station includes a correlation receiver for receiving the reference signal.Type: GrantFiled: September 29, 2003Date of Patent: March 31, 2009Assignee: SES Astra S.A.Inventor: Guy Harles
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Patent number: 6934314Abstract: The invention refers to a method and an apparatus for determining characteristics of components of a communication channel.Type: GrantFiled: December 6, 2001Date of Patent: August 23, 2005Assignee: SES Astra S.A.Inventors: Guy Harles, Gerhard Bethscheider
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Patent number: 6864838Abstract: In a satellite ranging system predetermined bit sequence or group of bit sequence in a transport stream, which is a digital signal are used to generate trigger signals on the basis of which the delay introduced into the transport stream by the travel path from a satellite ground station to the satellite and back or to another satellite ground station is determined allowing a calculation of the distance between the ground station(s) and the satellite. The predetermined bit sequence or group of bit sequences may be inserted into the transport stream at the uplink site, for example as a specific payload P. In order to avoid insertion of additional packets the transport stream or part of it may be used as a predetermined bit sequence.Type: GrantFiled: August 6, 2001Date of Patent: March 8, 2005Assignee: Societe Europeenne des Satellites S.A.Inventors: Guy Harles, Gerhard Bethscheider, Peter Siebert
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Publication number: 20040140930Abstract: The invention refers to a ranging system for determining ranging information of a spacecraft carrying a component of a communication channel. In order to provide a ranging system for determining ranging information of a satellite carrying a transponder as well as to provide a method thereof which yield a sufficient accuracy without causing further costs when narrow spot beams by the transponder are used, a ranging system according to the invention comprises a plurality of receiving stations at different locations on earth, wherein each receiving station is arranged for receiving a reference signal from said component; synchronisation means for providing a synchronised time base between the plurality of receiving stations; calculation means for calculating said ranging information in accordance with the propagation time of each received reference signal and with the synchronised time base; wherein at least one receiving station comprises a correlation receiver for receiving the reference signal.Type: ApplicationFiled: September 29, 2003Publication date: July 22, 2004Inventor: Guy Harles
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Publication number: 20030181161Abstract: The invention refers to a satellite communications system with a mobile user terminal. In order to provide a satellite communications system which enables communication with a mobile user terminal via conventional communication satellites on any area of interest on earth, a quasi-geostationary satellite is operated in an inclined orbit and sends a spread downlink signal s′ (t) to said area of interest on earth to be received and despreaded by a mobile user terminal.Type: ApplicationFiled: February 20, 2003Publication date: September 25, 2003Inventors: Guy Harles, Gerhard Bethscheider
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Patent number: 6535546Abstract: For determining characteristics of components of a communication channel, for example of a transponder in a communication satellite, a clean carrier signal f(t) is modulated with a pseudo noise signal PN(t) and transmitted through the communication channel at a level below the level of a payload signal which is transmitted via the communication channel simultaneously. The received signal s′(t) is correlated with same pseudo noise signal PN(t) to obtain a recovered carrier signal f′(t). Both the clean carrier signal f(t) and the recovered carrier signal f′(t) can be used to determine the desired characteristics. Since the PN modulated clean carrier signal s(t) is transmitted at a low level, it is possible to perform measurements without switching off the payload signal.Type: GrantFiled: December 17, 1998Date of Patent: March 18, 2003Assignee: Societe Europeenne des Satellites S.A.Inventors: Gerhard Bethscheider, Guy Harles
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Publication number: 20020094015Abstract: The invention refers to a method and an apparatus for determining characteristics of components of a communication channel.Type: ApplicationFiled: December 6, 2001Publication date: July 18, 2002Applicant: Societe Europeenne des Satellites S.A.Inventors: Guy Harles, Gerhard Bethscheider
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Publication number: 20020080070Abstract: In a satellite ranging system predetermined bit sequence or group of bit sequence in a transport stream, which is a digital signal are used to generate trigger signals on the basis of which the delay introduced into the transport stream by the travel path from a satellite ground station to the satellite and back or to another satellite ground station is determined allowing a calculation of the distance between the ground station(s) and the satellite. The predetermined bit sequence or group of bit sequences may be inserted into the transport stream at the uplink site, for example as a specific payload P. In order to avoid insertion of additional packets the transport stream or part of it may be used as a predetermined bit sequence.Type: ApplicationFiled: August 6, 2001Publication date: June 27, 2002Applicant: Societe Europeenne des Satellites S. AInventors: Guy Harles, Gerhard Bethscheider, Peter Siebert
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Patent number: 6275678Abstract: For determining the operating point of a non-linear amplifier 2 of a communication channel 1, for example of a transponder in a communication satellite, a first input signal I1 is transmitted through the communication channel 1 at a power level PI1 which drives the non-linear amplifier 2 in a non-linear operation mode. In addition, a second input signal i2 is transmitted through the communication channel 1 simultaneously with the first input signal I1. The second input signal i2 is transmitted at a level below the level of the first input signal I1. If the contribution of the second input signal i2 to the total input of the non-linear amplifier is small, the operating point of the non-linear amplifier is determined almost only by the first input signal. Therefore, the output power P02 corresponding to the second signal i2 is determined most strongly by the input power PI1 of the first signal I1.Type: GrantFiled: December 17, 1998Date of Patent: August 14, 2001Assignee: Societe Europeenne des Satellites S.A.Inventors: Gerhard Bethscheider, Guy Harles