Patents by Inventor Hubert Weinberger
Hubert Weinberger 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: 7116159Abstract: An adjustable filter, particularly for use as an antialiasing filter in digital telecommunications networks, includes adjustable capacitors which determine frequency response for the purpose of accurate alignment with a particular cut-off frequency. The active filter includes, in line with the invention, a control device with a measuring device for ascertaining the actual cut-off frequency of the filter. On the basis of the ascertained actual cut-off frequency of the filter and the information about the nominal cut-off frequency which is to be set, an adjustment parameter for the adjustable capacitor is selected from a memory arrangement. This adjustment parameter is used to adjust the adjustable capacitor such that the desired nominal cut-off frequency is obtained and, at the same time, the alignment is performed to achieve the nominal cut-off frequency with sufficient accuracy.Type: GrantFiled: October 30, 2003Date of Patent: October 3, 2006Assignee: Infineon Technologies AGInventors: Christian Fleischhacker, Günter Koder, Francesco Labate, Michael Staber, Hubert Weinberger
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Patent number: 7012979Abstract: Tone signal detection circuit for a receiving circuit for detecting at least one tone signal of predetermined tone signal frequency (fE) which is contained in a received analog input signal, comprising a reference signal generator (41) for generating an analog converter reference signal which consists of a reference DC (VrefDC) and a periodic reference AC (VrefAC) having a variable fundamental frequency (fG), which is superimposed on the reference DC, an analog/digital converter (11) for converting the analog input signal into a digital data stream in dependence on the analog converter reference signal (Vref); and comprising a digital control circuit (20) which adjusts the variable fundamental frequency (fG) of the reference signal (Vref) generated by the reference signal generator (42) in accordance with the predetermined tone signal frequencies (fG) of the tone signals to be detected and evaluates the digital data stream output by the digital analog/digital converter (11) for detecting a data pattern corresType: GrantFiled: August 29, 2001Date of Patent: March 14, 2006Assignee: Infineon Technologies AGInventors: Jörg Hauptmann, Thomas Pötscher, Michael Staber, Dietmar Straeussnigg, Hubert Weinberger
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Patent number: 6879273Abstract: The invention creates a method and a device for digitally transmitting analog signals, in which oversampling is performed in analog/digital and digital/analog converters. In this arrangement, a digital/analog conversion is performed which, in particular, is suitable for VDSL systems. A transmitted digital transmission signal (110) is supplied to a mixing unit (201) and in the mixing unit (201), a receive noise signal (211) applied to a receive noise source terminal (209) is superimposed on the digital transmission signal (110). An interpolation filter unit (203), in combination with a subsequent noise shaping device (205), provides an increase in the frequency bandwidth, resulting in suitable oversampling.Type: GrantFiled: September 23, 2003Date of Patent: April 12, 2005Assignee: Infineon Technologies AGInventors: Andreas Wiesbauer, Martin Clara, Thomas Pötscher, Hubert Weinberger, Jörg Hauptmann, Thomas Magesacher
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Publication number: 20040263369Abstract: The invention creates a method and a device for digitally transmitting analog signals, in which oversampling is performed in analog/digital and digital/analog converters. In this arrangement, a digital/analog conversion is performed which, in particular, is suitable for VDSL systems. A transmitted digital transmission signal (110) is supplied to a mixing unit (201) and in the mixing unit (201), a receive noise signal (211) applied to a receive noise source terminal (209) is superimposed on the digital transmission signal (110). An interpolation filter unit (203), in combination with a subsequent noise shaping device (205), provides an increase in the frequency bandwidth, resulting in suitable oversampling.Type: ApplicationFiled: September 23, 2003Publication date: December 30, 2004Inventors: Andreas Wiesbauer, Martin Clara, Thomas Potscher, Hubert Weinberger, Jorg Hauptmann, Thomas Magesacher
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Publication number: 20040124911Abstract: An adjustable filter, particularly for use as an antialiasing filter in digital telecommunications networks, includes adjustable capacitors which determine frequency response for the purpose of accurate alignment with a particular cut-off frequency. The active filter includes, in line with the invention, a control device with a measuring device for ascertaining the actual cut-off frequency of the filter. On the basis of the ascertained actual cut-off frequency of the filter and the information about the nominal cut-off frequency which is to be set, an adjustment parameter for the adjustable capacitor is selected from a memory arrangement. This adjustment parameter is used to adjust the adjustable capacitor such that the desired nominal cut-off frequency is obtained and, at the same time, the alignment is performed to achieve the nominal cut-off frequency with sufficient accuracy.Type: ApplicationFiled: October 30, 2003Publication date: July 1, 2004Inventors: Christian Fleischhacker, Gunter Koder, Francesco Labate, Michael Staber, Hubert Weinberger
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Patent number: 6646580Abstract: Digital/analog converter with programmable gain for converting a digital input signal (Dn) into an analog output signal, the digital/analog converter (1) having: a signal input (2) for applying the digital input signal (Dn) a reference current source (7) for generating a reference current (Iref&phgr;), the current intensity of the reference current output by the reference current source (7) being adjustable via a setting terminal (4) of the digital/analog converter (1) current mirror circuits which mirror the generated reference current (Iref) with an associated current mirror ratio to form mirror currents a controllable switching device (57), which switches through the mirror currents output by the current mirror circuits, in a manner dependent on the digital input signal (Dn) present at the signal input (2), to a summation current node (62) for generating a summation current (Isum) and a current/voltage converter (17) for converting the generated summation current (Isum) into a corresponding voltage (UType: GrantFiled: October 29, 2001Date of Patent: November 11, 2003Assignee: Infineon Technologies AGInventors: Martin Clara, Hubert Weinberger, Christian Fleischhacker, Andreas Wiesbauer
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Patent number: 6496128Abstract: A sigma-delta analog-to-digital converter array including two cascaded sigma-delta modulators, the two sigma-delta modulators being multi-bit sigma-delta modulators. The sigma-delta analog-to-digital converter array is preferably a third order device and supplies a digital output signal corresponding to a sigma-delta converter with 7-bit quantization. To this end, a second order sigma-delta modulator with 3-bit quantization and a first order sigma-delta modulator with 5-bit quantization may be used.Type: GrantFiled: November 2, 2001Date of Patent: December 17, 2002Assignee: Infineon Technologies AGInventors: Andreas Wiesbauer, Hubert Weinberger, Martin Clara, Jörg Hauptmann
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Publication number: 20020109618Abstract: Digital/analog converter with programmable gain for converting a digital input signal (Dn) into an analog output signal, the digital/analog converter (1) having:Type: ApplicationFiled: October 29, 2001Publication date: August 15, 2002Inventors: Martin Clara, Hubert Weinberger, Christian Fleischhacker, Andreas Wiesbauer
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Publication number: 20020093441Abstract: A sigma-delta analog-to-digital converter array including two cascaded sigma-delta modulators, the two sigma-delta modulators being multi-bit sigma-delta modulators. The sigma-delta analog-to-digital converter array is preferably a third order device and supplies a digital output signal corresponding to a sigma-delta converter with 7-bit quantization. To this end, a second order sigma-delta modulator with 3-bit quantization and a first order sigma-delta modulator with 5-bit quantization may be used.Type: ApplicationFiled: November 2, 2001Publication date: July 18, 2002Inventors: Andreas Wiesbauer, Hubert Weinberger, Martin Clara, Jorg Hauptmann
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Publication number: 20020074987Abstract: Tone signal detection circuit for a receiving circuit for detecting at least one tone signal of predetermined tone signal frequency (fE) which is contained in a received analog input signal, comprising a reference signal generator (41) for generating an analog converter reference signal which consists of a reference DC (VrefDC) and a periodic reference AC (VrefAC) having a variable fundamental frequency (fG), which is superimposed on the reference DC, an analog/digital converter (11) for converting the analog input signal into a digital data stream in dependence on the analog converter reference signal (Vref); and comprising a digital control circuit (20) which adjusts the variable fundamental frequency (fG) of the reference signal (Vref) generated by the reference signal generator (42) in accordance with the predetermined tone signal frequencies (fG) of the tone signals to be detected and evaluates the digital data stream output by the digital analog/digital converter (11) for detecting a data pattern corresType: ApplicationFiled: August 29, 2001Publication date: June 20, 2002Inventors: Jorg Hauptmann, Thomas Potscher, Michael Staber, Dietmar Straeussnigg, Hubert Weinberger