Patents by Inventor Roland Krimmer
Roland Krimmer 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: 11595127Abstract: The invention relates to a power-over-fiber (PoF) system, comprising: an optical source configured to generate an optical signal, wherein the optical signal comprises an intensity modulation; an optical fiber configured to receive the optical signal from the optical source and to guide the optical signal; an optical sink, which is configured to receive the optical signal from the optical fiber and to convert the optical signal into an electrical signal; a detection unit, which is configured to detect at least one characteristic of the electrical signal, wherein the characteristic is at least partially caused by the intensity modulation of the optical signal; and a control unit, which is configured to control the optical source based on the detected characteristic.Type: GrantFiled: June 30, 2020Date of Patent: February 28, 2023Assignee: ROHDE & SCHWARZ GMBH & CO. KGInventors: Roland Krimmer, Andreas Ziegler
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Publication number: 20210409116Abstract: The invention relates to a power-over-fiber (PoF) system, comprising: an optical source configured to generate an optical signal, wherein the optical signal comprises an intensity modulation; an optical fiber configured to receive the optical signal from the optical source and to guide the optical signal; an optical sink, which is configured to receive the optical signal from the optical fiber and to convert the optical signal into an electrical signal; a detection unit, which is configured to detect at least one characteristic of the electrical signal, wherein the characteristic is at least partially caused by the intensity modulation of the optical signal; and a control unit, which is configured to control the optical source based on the detected characteristic.Type: ApplicationFiled: June 30, 2020Publication date: December 30, 2021Inventors: Roland KRIMMER, Andreas ZIEGLER
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Patent number: 11187730Abstract: The present invention provides an electrically isolated acquisition of a measurement signal by means of a measurement probe. For this purpose, a probe arrangement is provided with a probe head for electrically measuring a signal. The probe head is coupled to a probe coupler via optical links. In particular, optical links are used for power supply of the probe head and for forwarding optical signals corresponding to the measured electrical signal.Type: GrantFiled: November 19, 2019Date of Patent: November 30, 2021Assignee: ROHDE & SCHWARZ GMBH & CO. KGInventors: Andreas Ziegler, Dirk Gehrke, Reiner Franke, Martin Peschke, Roland Krimmer
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Publication number: 20210148955Abstract: The present invention provides an electrically isolated acquisition of a measurement signal by means of a measurement probe. For this purpose, a probe arrangement is provided with a probe head for electrically measuring a signal. The probe head is coupled to a probe coupler via optical links. In particular, optical links are used for power supply of the probe head and for forwarding optical signals corresponding to the measured electrical signal.Type: ApplicationFiled: November 19, 2019Publication date: May 20, 2021Inventors: Andreas Ziegler, Dirk Gehrke, Reiner Franke, Martin Peschke, Roland Krimmer
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Patent number: 10545175Abstract: An electrical measurement system for performing a measurement on a device under test has a main unit, a probe unit connected to the main unit, a first offset generator for generating a first offset influencing the measurement, and a second offset generator for generating a second offset influencing the measurement. The first offset generator has a first analog step size and the second offset generator has a second analog step size. The first and second analog step sizes differ from one another.Type: GrantFiled: March 27, 2017Date of Patent: January 28, 2020Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Roland Krimmer, Alexander Kunze, Andreas Ziegler, Gottfried Czech, Mirko Soellner
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Publication number: 20180275194Abstract: An electrical measurement system for performing a measurement on a device under test has a main unit, a probe unit connected to the main unit, a first offset generator for generating a first offset influencing the measurement, and a second offset generator for generating a second offset influencing the measurement. The first offset generator has a first analog step size and the second offset generator has a second analog step size. The first and second analog step sizes differ from one another.Type: ApplicationFiled: March 27, 2017Publication date: September 27, 2018Applicant: Rohde & Schwarz GmbH & Co. KGInventors: Roland Krimmer, Alexander Kunze, Andreas Ziegler, Gottfried Czech, Mirko Soellner
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Patent number: 10031537Abstract: A differential probe provides a probe input which comprises two inputs for recording a first and second input signal. The differential probe further provides a first amplifier which is connected to the two inputs. The differential probe additionally provides a compensation device, which generates and superposes on the first and second input signal a differential offset signal. The compensation device also generates a common-mode offset signal which is independent of the differential offset signal.Type: GrantFiled: November 20, 2013Date of Patent: July 24, 2018Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Martin Peschke, Roland Krimmer, Alexander Kunze, Andreas Ziegler
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Patent number: 8948347Abstract: According to the invention, a user connection cable (TAL) that is to be associated with a user connection circuit (SLIC) and is used for connecting at least one user (TN) to at least one communication network is verified regarding switching on of a positive distribution voltage in the strands (a, b). The user connection circuit (SLIC) is initially switched to the silent interval mode and a test impedance (I) is switched between the strands (a, b) of the user connection cable (TAL), whereupon the current (i) flowing across the strands (a, b) and the voltage (u) to ground of a strand (b) are measured. Advantageously, the measurements are taken via measuring devices disposed on the user connection subassembly (SLMA).Type: GrantFiled: June 14, 2006Date of Patent: February 3, 2015Assignee: Nokia Siemens Networks GmbH & Co. KGInventors: Heike Diegel, Rudolf Dollinger, Roland Krimmer, Bernhard Sieben
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Publication number: 20140139205Abstract: A differential probe provides a probe input which comprises two inputs for recording a first and second input signal. The differential probe further provides a first amplifier which is connected to the two inputs. The differential probe additionally provides a compensation device, which generates and superposes on the first and second input signal a differential offset signal. The compensation device also generates a common-mode offset signal which is independent of the differential offset signal.Type: ApplicationFiled: November 20, 2013Publication date: May 22, 2014Inventors: Martin Peschke, Roland Krimmer, Alexander Kunze, Andreas Ziegler
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Patent number: 8107615Abstract: The invention relates to a method and to a device for testing the function for inverting the polarity on a subscriber connection line (TAL) comprising several wires (a, b), in order to connect at least one subscriber to a subscriber connection line (SLM), which comprises at least one inverting device (RG) and a current measuring device (MG) which is associated with the inverting device (RG). In a first step, the subscriber connection component (SLM) is separated from the inverting device (RG) and forces physical inversion on the wires (a, b) of the subscriber connection line (TAL). In a second step, the inverting function of the inverting device (RG) is activated. In a subsequent third step, the subscriber connection component (SLM) is separated from the device (DC) which forces the physical inversion and is connected to the inverting device (RG). The correct function of inversion is tested during all three steps by measuring the direction of the current flow.Type: GrantFiled: September 18, 2006Date of Patent: January 31, 2012Assignee: Nokia Siemens Networks GmbH & Co. KGInventors: Heike Diegel, Rudolf Dollinger, Roland Krimmer, Bernhard Sieben
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Publication number: 20080253534Abstract: The invention relates to a method and to a device for testing the function for inverting the polarity on a subscriber connection line (TAL) comprising several wires (a, b), in order to connect at least one subscriber to a subscriber connection line (SLM), which comprises at least one inverting device (RG) and a current measuring device (MG) which is associated with the inverting device (RG). In a first step, the subscriber connection component (SLM) is separated from the inverting device (RG) and forces physical inversion on the wires (a, b) of the subscriber connection line (TAL). In a second step, the inverting function of the inverting device (RG) is activated. In a subsequent third step, the subscriber connection component (SLM) is separated from the device (DC) which forces the physical inversion and is connected to the inverting device (RG). The correct function of inversion is tested during all three steps by measuring the direction of the current flow.Type: ApplicationFiled: September 18, 2006Publication date: October 16, 2008Applicant: Nokia Siemens Networks GmbH & Co. KGInventors: Heike Diegel, Rudolf Dollinger, Roland Krimmer, Bernhard Sieben
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Publication number: 20080212745Abstract: According to the invention, a user connection cable (TAL) that is to be associated with a user connection circuit (SLIC) and is used for connecting at least one user (TN) to at least one communication network is verified regarding switching on of a positive distribution voltage in the strands (a, b). The user connection circuit (SLIC) is initially switched to the silent interval mode and a test impedance (I) is switched between the strands (a, b) of the user connection cable (TAL), whereupon the current (i) flowing across the strands (a, b) and the voltage (u) to ground of a strand (b) are measured. Advantageously, the measurements are taken via measuring devices disposed on the user connection subassembly (SLMA).Type: ApplicationFiled: June 14, 2006Publication date: September 4, 2008Applicant: Nokia Siemens Networks GmbH & CoInventors: Heike Diegel, Rudolf Dollinger, Roland Krimmer, Bernhard Sieben
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Patent number: 6516054Abstract: An adjustment and current-measurement method for a subscriber line circuit of a digital telephone exchange is integrated in the low-voltage section of the subscriber line circuit. A previously determined disturbance variable, which is stored in the low-voltage section with a reversed mathematical sign, is added to the currents which are to be measured, for example, for an adjustment of the supply current or of the operability of the subscriber line circuit. This makes it possible to carry out a current measurement for already corrected current levels.Type: GrantFiled: July 26, 2000Date of Patent: February 4, 2003Assignee: Siemens AktiengesellschaftInventors: Rudolf Dollinger, Roland Krimmer
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Patent number: 6256765Abstract: In connection with the checking of data stocks by check sum formation (e.g. CRC checking), subgroups of the data group being checked contain dummy bytes wherein, given desired modification of the individual bytes, the dummy bytes in relevant subgroups are modified such that an intermediate check sum remains unmodified.Type: GrantFiled: September 30, 1998Date of Patent: July 3, 2001Assignee: Siemens AktiengesellschaftInventor: Roland Krimmer
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Patent number: 6137667Abstract: In a circuit and method for triggering an over-voltage protection unit, a trigger voltage for an over-voltage protection unit is achieved either by a disconnection voltage of a coil or by a charge process of a capacitor. For feeding these reactances, a signal generator is used.Type: GrantFiled: December 22, 1998Date of Patent: October 24, 2000Assignee: Siemens AktiengesellschaftInventors: Bernhard Sieben, Roland Krimmer, Ludwig Dirscherl
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Patent number: 6052437Abstract: An interface circuit with integrated test functions relating to the subscriber line, with a test circuit realized in the simplest case by an ohmic resistance, and comprising a relay circuit having two changeover contacts by means of which in one switching position the leads of the subscriber line are connected with the interface circuit, and in the other switching position the subscriber line is disconnected and the test circuit is connected to the interface circuit.Type: GrantFiled: September 18, 1997Date of Patent: April 18, 2000Assignee: Siemens AktiengesellschaftInventors: Paul Kunisch, Roland Krimmer
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Patent number: 4720845Abstract: The invention describes a protective circuit for the protection of the electronic interconnect circuit (SLIC) and the electronic switches for test access, by means of a threshold setting element which is provided for each conductor (a,b) of a core pair for the shunting of overvoltages to ground, as well as a current path of higher breakover voltage for each conductor of the core pair, which permits checking the subscriber line circuit for line interruption during a malfunction of the threshold setting element.Type: GrantFiled: March 2, 1987Date of Patent: January 19, 1988Assignee: Siemens AktiengesellschaftInventors: Robert Lechner, Hans-Werner Rudolf, Roland Krimmer
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Patent number: 4715058Abstract: A protective circuit for the electronic interface circuit (SLIC) as well as the electronic switches for test access is described, in which a first threshold setting element for each conductor of the core pair is connected between the line side and a test access and/or isolation switch and the test access switch for the related first conductor of the core pair, for conducting overvoltages to ground, as well as a second threshold setting element bridging access switch which is connected to ground via a third threshold setting element.Type: GrantFiled: March 2, 1987Date of Patent: December 22, 1987Assignee: Siemens AktiengesellschaftInventors: Robert Lechner, Hans-Werner Rudolf, Roland Krimmer