Patents by Inventor Patrick Wurm
Patrick Wurm 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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Publication number: 20240092672Abstract: A method of making a glass product includes: melting a batch of raw materials to form a glass melt in a melting tank; heating the batch and/or the glass melt using two or more electrodes, the electrodes including an electrode material and heating the batch and/or the glass melt includes operating the electrodes at a current frequency of at least 1,000 Hz and at most 5,000 Hz; withdrawing the glass melt from the melting tank; and forming the glass melt into the glass product.Type: ApplicationFiled: September 21, 2023Publication date: March 21, 2024Applicant: Schott AGInventors: Rainer Erwin Eichholz, Josef Rasp, Alexander Uwe Strobel, Werner Axt, Patrick Sattler, Reinhard Wurm, Roland Doss, Wolfgang Schmidbauer, Volker Ohmstede, Kim Oliver Hofmann
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Patent number: 8284858Abstract: The invention relates to a radiofrequency transmission system comprising: means of producing at least one digital signal quantized on N bits; for each of said at least one digital signal, digital processing means including: Sigma-delta filters capable of producing, on the basis of a digital input signal quantized on N bits, a digital output signal quantized on M bits, where M is less than N; downstream from sigma-delta filters, means of repetition over-sampling; and downstream from over-sampling means, convolution means; digital-to-analogue conversion means capable of converting a digital output signal into an analogue signal; and analogue filtering means capable of filtering said analogue signal so as to select a narrow frequency band which includes the second frequency.Type: GrantFiled: July 8, 2010Date of Patent: October 9, 2012Assignee: Commissariat a l'Energie Atomique et Aux Energies AlternativesInventors: Patrick Wurm, Claire Auer (Wurm), legal representative, Alexandre Shirakawa
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Patent number: 8233563Abstract: Radiofrequency transmission system including a digital module producing a first complex digital signal quantised on N bits, a module transforming the first complex digital signal into two second complex digital signals with an identical and constant envelope that are phase-shifted with respect to one another, sigma-delta filters quantising the two second signals into third M bits signals, M being less than N, a digital-to-analogue converter converting the third signals into analogue signals, band-pass filters selectively filtering the analogue signals in a predetermined transmission frequency band, amplifiers amplifying the filtered analogue signals, and filters recombining the amplified analogue signals for transmission.Type: GrantFiled: July 8, 2010Date of Patent: July 31, 2012Assignee: Commissariat a l'Energie Atomique Et Aux Energies AlternativesInventors: Patrick Wurm, Claire Auer (Wurm), legal representative, Alexandre Shirakawa
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Publication number: 20120147994Abstract: A device for processing a signal carrying information to be transmitted using a radiofrequency signal, for transformation of the signal into two signals of identical amplitude phase-shifted respectively relative to the information-carrying signal according to two variable and opposing phase shifts. The device includes a mechanism transforming the information-carrying signal. The device transforms the information-carrying signal into two signals of constant amplitude and of variable phase shifts according to values of the information-carrying signal, for as long as the amplitude of the information-carrying signal is greater than a predetermined value, and transforms the information-carrying signal into two signals of variable amplitude according to the values of the information-carrying signal, when the amplitude of the information-carrying signal is less than the predetermined value.Type: ApplicationFiled: December 16, 2009Publication date: June 14, 2012Applicant: COMM. A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERInventors: Patrick Wurm, Claire Wurm
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Patent number: 8055205Abstract: A method of assessing the performance of a radio transmitting means of, or intended for use in, a user terminal of a mobile telecommunications network, the transmitting means having a plurality of correction factors that are adjustable for improving the performance of the transmitting means and whose values together define a point in a correction space, the method comprising allocating values to the factors to specify a point in the space, measuring the performance of the transmitting means to determine as an error distance the distance of said point from an optimum point in said space that gives best performance of the transmitting means in terms of said factors and using said distance in the identification of said optimum point. Corresponding program code and apparatus is also envisaged.Type: GrantFiled: October 15, 2007Date of Patent: November 8, 2011Assignees: MStar Semiconductor, Inc., MStar Software R&D (Shenzhen) Ltd., MStar France SAS, MStar Semiconductor, Inc.Inventor: Patrick Wurm
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Patent number: 7973620Abstract: A power amplifier filter for radio-frequency signals having an outphasing type architecture comprising a first stage (2) capable of generating, from an input signal s(t), two signals s1(t), s2(t) having an identical amplitude but phase shifted relative to each other, a second amplifier stage (3) for said signals s1(t), s2(t), and a third recombining stage (4) capable of summing the two signals s?1(t), s?2(t) obtained from second stage (3), characterized in that recombining stage (4) includes an assembly of acoustic wave resonators coupled to each other, some of these resonators referred to as “input resonators” being connected to the outputs of second stage (4) and others of these resonators referred to as “output resonators” being connected to the output terminals of the filter.Type: GrantFiled: July 7, 2010Date of Patent: July 5, 2011Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Alexandre Shirakawa, Jean-Baptiste David, Patrick Wurm, Claire Auer (Wurm), legal representative
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Publication number: 20100301968Abstract: A power amplifier filter for radio-frequency signals having an outphasing type architecture comprising a first stage (2) capable of generating, from an input signal s(t), two signals s1(t), s2(t) having an identical amplitude but phase shifted relative to each other, a second amplifier stage (3) for said signals s1(t), s2(t), and a third recombining stage (4) capable of summing the two signals s?1(t), s?2(t) obtained from second stage (3), characterized in that recombining stage (4) includes an assembly of acoustic wave resonators coupled to each other, some of these resonators referred to as “input resonators” being connected to the outputs of second stage (4) and others of these resonators referred to as “output resonators” being connected to the output terminals of the filter.Type: ApplicationFiled: July 7, 2010Publication date: December 2, 2010Applicant: Commissariat A L'Energie Atomique Et Aux Energies AlternativesInventors: Alexandre SHIRAKAWA, Jean-Baptiste DAVID, Patrick WURM, Claire AUER (WURM)
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Publication number: 20100272213Abstract: The invention relates to a radiofrequency transmission system comprising: means of producing at least one digital signal quantised on N bits; for each of said at least one digital signal, digital processing means including: Sigma-delta filters capable of producing, on the basis of a digital input signal quantised on N bits, a digital output signal quantised on M bits, where M is less than N; downstream from sigma-delta filters, means of repetition over-sampling; and downstream from over-sampling means, convolution means; digital-to-analogue conversion means capable of converting a digital output signal into an analogue signal; and analogue filtering means capable of filtering said analogue signal so as to select a narrow frequency band which includes the second frequency.Type: ApplicationFiled: July 8, 2010Publication date: October 28, 2010Applicant: Commissariat A L'Energie Atomique Et Aux Energies AlternativesInventors: Patrick WURM, Claire Auer (Wurm), Alexandre Shirakawa
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Publication number: 20100272214Abstract: The invention relates to a radiofrequency transmission system comprising: means of producing a complex digital signal quantised on N bits; means of transforming the complex digital signal into two complex digital signals with an identical and constant envelope that are phase-shifted with respect to one another; a digital processing pathway associated with each of the two complex digital signals with a constant envelope and comprising at least some filtering means of the sigma-delta type for quantising on M bits signals travelling in the processing pathway, M being less than N; digital-to-analogue conversion means for converting the outputs of the digital processing pathways into analogue signals; means of selectively filtering (of the bandpass type) the analogue signals in a predetermined transmission frequency band; means of amplifying the filtered analogue signals; and means of recombining the amplified analogue signals.Type: ApplicationFiled: July 8, 2010Publication date: October 28, 2010Applicant: Commissariat A L'Energie Atomique Et Aux Energies AlternativeInventors: Patrick WURM, Claire AUER(WURM), Alexandre SHIRAKAWA
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Patent number: 7480345Abstract: In a polar loop based radio-communications apparatus having a phase control loop for controlling the phase of a carrier outputted from an oscillator for transmission, and an amplitude control loop for controlling the amplitude of a transmission output signal outputted from a power amplification circuit, the phase control loop is first started while maintaining the amplitude control loop in an off state at the outset of transmission, and the amplitude control loop is started after stabilizing the phase control loop.Type: GrantFiled: May 2, 2007Date of Patent: January 20, 2009Assignees: Renesas Technology Corp., TTPCOM LimitedInventors: Noriyuki Kurakami, Patrick Wurm, Robert Astle Henshaw, David Freeborough
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Patent number: 7433653Abstract: A transmitter adopting a polar loop system including a phase control loop for controlling the phase of a carrier signal outputted from a transmitting oscillator and an amplitude control loop for controlling the amplitude of a transmitting output signal outputted from a power amplification circuit, and designed to be capable of performing transmission using a GMSK modulation mode and transmission using an 8-PSK modulation mode. In the transmitter, the phase control loop is shared as a phase control loop for use in the GMSK modulation mode and a phase control loop for use in the 8-PSK modulation mode. A component similar to any one of components constituting a loop filter is provided in parallel therewith so that the component can be connected or disconnected in accordance with the modulation mode, for example, by use of a switching element.Type: GrantFiled: June 18, 2007Date of Patent: October 7, 2008Assignees: Renesas Technology Corp., TTPCOM LimitedInventors: Ryoichi Takano, Kazuhiko Hikasa, Yasuyuki Kimura, Hiroshi Hagisawa, Patrick Wurm, Robert Astle Henshaw, David Freeborough
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Patent number: 7424276Abstract: In a transmitter of polar-loop architecture having a phase control loop and an amplitude control loop, as loop filters for controlling a loop band of the amplitude control loop, a first filter with lag-lead characteristics (secondary or more filter including a capacitor and a resistor) and a second filter of a perfect integrator type (filter including only a capacitor) are employed, and current-output type circuits are connected to respective front stages of the first and second filters.Type: GrantFiled: February 18, 2003Date of Patent: September 9, 2008Assignees: Renesas Technology Corp., TTPCOM LimitedInventors: Taizo Yamawaki, Hisayoshi Kajiwara, Ryoichi Takano, Patrick Wurm
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Publication number: 20080153436Abstract: A method of assessing the performance of a radio transmitting means of, or intended for use in, a user terminal of a mobile telecommunications network, the transmitting means having a plurality of correction factors that are adjustable for improving the performance of the transmitting means and whose values together define a point in a correction space, the method comprising allocating values to the factors to specify a point in the space, measuring the performance of the transmitting means to determine as an error distance the distance of said point from an optimum point in said space that gives best performance of the transmitting means in terms of said factors and using said distance in the identification of said optimum point. Corresponding programme code and apparatus is also envisaged.Type: ApplicationFiled: October 15, 2007Publication date: June 26, 2008Applicant: MOTOROLA, INC.Inventor: Patrick Wurm
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Patent number: 7366481Abstract: A polar loop based radio telecommunication apparatus which has a phase control loop for controlling the phase of a carrier outputted from an oscillator for transmitter, and an amplitude control loop for controlling the amplitude of a transmission output signal outputted from a power amplifier circuit, wherein precharge means is provided on a forward path from a current source, through the power amplifier circuit, to a detection circuit, forming the amplitude control loop, for rapidly increasing a control voltage for the power amplifier circuit to a power threshold upon starting transmission.Type: GrantFiled: April 3, 2007Date of Patent: April 29, 2008Assignees: Renesas Technology Corporation, Tipcom LimitedInventors: Kazuhisa Okada, Kazuhiko Hikasa, Patrick Wurm
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Patent number: 7324787Abstract: In a radio communication system having a phase control loop for phase modulation and an amplitude control loop for amplitude modulation and being capable of time divisional transmission and reception under a predetermined time management, when transmission in a first mode is switched to transmission in a second mode or when transmission in the second mode is switched to transmission in the first mode, the output level of the power amplifier is lowered once to a predetermined level higher than the level when transmission related circuits are activated, and thereafter the output level of the power amplifier is again ramped after the settings have been changed but without starting of a transmission oscillator, establishing of the phase control loop and the amplitude control loop.Type: GrantFiled: July 29, 2004Date of Patent: January 29, 2008Assignees: Renesas Technology Corporation, TTPCOM LimitedInventors: Noriyuki Kurakami, Kazuhiko Hikasa, Ryoichi Takano, Patrick Wurm
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Publication number: 20070249297Abstract: A transmitter adopting a polar loop system including a phase control loop for controlling the phase of a carrier signal outputted from a transmitting oscillator and an amplitude control loop for controlling the amplitude of a transmitting output signal outputted from a power amplification circuit, and designed to be capable of performing transmission using a GMSK modulation mode and transmission using an 8-PSK modulation mode. In the transmitter, the phase control loop is shared as a phase control loop for use in the GMSK modulation mode and a phase control loop for use in the 8-PSK modulation mode. A component similar to any one of components constituting a loop filter is provided in parallel therewith so that the component can be connected or disconnected in accordance with the modulation mode, for example, by use of a switching element.Type: ApplicationFiled: June 18, 2007Publication date: October 25, 2007Inventors: Ryoichi Takano, Kazuhiko Hikasa, Yasuyuki Kimura, Hiroshi Hagisawa, Patrick Wurm, Robert Henshaw, David Freeborough
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Publication number: 20070238424Abstract: A polar loop based radio telecommunication apparatus which has a phase control loop for controlling the phase of a carrier outputted from an oscillator for transmitter, and an amplitude control loop for controlling the amplitude of a transmission output signal outputted from a power amplifier circuit, wherein precharge means is provided on a forward path from a current source, through the power amplifier circuit, to a detection circuit, forming the amplitude control loop, for rapidly increasing a control voltage for the power amplifier circuit to a power threshold upon starting transmission.Type: ApplicationFiled: April 3, 2007Publication date: October 11, 2007Inventors: Kazuhisa Okada, Kazuhiko Hikasa, Patrick Wurm
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Patent number: 7274919Abstract: The invention provides a simple solution for a broadband transmitter/receiver for which the working bandwidth is split into at least two non-contiguous sub-bands. The invention uses a filtering means 50 which comprises at least two band-pass filters 51 and 52 provided with switching means 53 and 54. The use of two switched filters 51 and 52 makes it possible to use a single synthesizer 6 to scan two sub-bands of the working bandwidth. The frequency synthesizer 6 operates for one sub-band in supradyne mode and for the other sub-band in infradyne mode. In a variant, the invention uses a third filter and divides the bandwidth into three sub-bands.Type: GrantFiled: June 5, 2001Date of Patent: September 25, 2007Assignee: Thomson LicensingInventors: Patrice Hirtzlin, Jean-Yves Le Naour, Patrick Wurm
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Publication number: 20070201580Abstract: In a polar loop based radio-communications apparatus having a phase control loop for controlling the phase of a carrier outputted from an oscillator for transmission, and an amplitude control loop for controlling the amplitude of a transmission output signal outputted from a power amplification circuit, the phase control loop is first started while maintaining the amplitude control loop in an off state at the outset of transmission, and the amplitude control loop is started after stabilizing the phase control loop.Type: ApplicationFiled: May 2, 2007Publication date: August 30, 2007Inventors: Noriyuki Kurakami, Patrick Wurm, Robert Henshaw, David Freeborough
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Publication number: 20070184797Abstract: A polar loop based radio telecommunication apparatus which has a phase control loop for controlling the phase of a carrier outputted from an oscillator for transmitter, and an amplitude control loop for controlling the amplitude of a transmission output signal outputted from a power amplifier circuit, wherein precharge means is provided on a forward path from a current source, through the power amplifier circuit, to a detection circuit, forming the amplitude control loop, for rapidly increasing a control voltage for the power amplifier circuit to a power threshold upon starting transmission.Type: ApplicationFiled: April 3, 2007Publication date: August 9, 2007Inventors: Kazuhisa Okada, Kazuhiko Hikasa, Patrick Wurm