Patents by Inventor Robert Wastlhuber
Robert Wastlhuber 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: 9703749Abstract: In a method for synchronizing a control unit and at least one peripheral unit having actuators and/or sensors, the control unit and the peripheral unit exchange data with each other via a serial interface. The control unit transmits data to the at least one peripheral unit which is processed in the peripheral unit for the operation of the actuators and/or sensors, and at least one synchronization character is transmitted from the control unit to the peripheral unit for the synchronization. In this context, the synchronization character is appended by the control unit to a first data sequence of a data stream to be transmitted from the control unit to the peripheral unit, and the transmission of a second data sequence to be transmitted after the first data sequence is delayed in time on the part of the control unit, so that the second data sequence is transmitted by the control unit to the peripheral unit following the synchronization character.Type: GrantFiled: September 2, 2014Date of Patent: July 11, 2017Assignee: JOHANNES HEIDENHAIN GMBHInventor: Robert Wastlhuber
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Publication number: 20150067202Abstract: In a method for synchronizing a control unit and at least one peripheral unit having actuators and/or sensors, the control unit and the peripheral unit exchange data with each other via a serial interface. The control unit transmits data to the at least one peripheral unit which is processed in the peripheral unit for the operation of the actuators and/or sensors, and at least one synchronization character is transmitted from the control unit to the peripheral unit for the synchronization. In this context, the synchronization character is appended by the control unit to a first data sequence of a data stream to be transmitted from the control unit to the peripheral unit, and the transmission of a second data sequence to be transmitted after the first data sequence is delayed in time on the part of the control unit, so that the second data sequence is transmitted by the control unit to the peripheral unit following the synchronization character.Type: ApplicationFiled: September 2, 2014Publication date: March 5, 2015Inventor: Robert Wastlhuber
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Patent number: 7289438Abstract: A method for serial data transmission between a position measuring system and a processing unit that includes transmitting position data and further data between the position measuring system and the processing unit in serial form as digital data words, transmitting up-to-date position data between the position measuring system and the processing unit upon a position request command and always transmitting further data, whose processing is not time-critical, immediately following the up-to-date position data.Type: GrantFiled: June 18, 2001Date of Patent: October 30, 2007Assignee: Dr. Johannes Heidenhain GmbHInventors: Robert Wastlhuber, Erich Strasser, Christian Eisenberger, Erwin Bratzdrum
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Patent number: 7194370Abstract: In a device and a method for correcting scanning signals of incremental position transducers, which exhibit deviations from the signal shape required by a downstream evaluation unit, the scanning signals are fed to a correction unit in response to a signal request and, to implement the correction, are linked there to correction data which were generated in consideration of active values of the scanning signals. Following each signal request, for at least one predefined time segment, the correction unit is exclusively fed scanning signals which are used for generating correction data.Type: GrantFiled: September 22, 2003Date of Patent: March 20, 2007Assignee: Dr. Johannes Heidenhain GmbHInventors: Peter Oberhans, Robert Wastlhuber, Gabriele Ehgartner
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Patent number: 7131056Abstract: A method for examining an interface to a plurality of peripheral units of a numeric control system includes, firstly, an initialization step in which an unequivocal identification character is written into an identification character register of each peripheral unit, the register functioning in response to an address bus. The identification character register is read out in an examination step and is compared with an expected value. If an identification character does not tally with the corresponding expected value, an error message is produced, and if all of the identification characters tally with the corresponding expected values, the addressing of all of the peripheral units by the address bus is deemed successful.Type: GrantFiled: November 30, 2002Date of Patent: October 31, 2006Assignee: Dr. Johannes Heidenhain GmbHInventors: Robert Wastlhuber, Alfons Baumgartner
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Patent number: 6929396Abstract: A system for monitoring the temperature prevailing in the stator unit of an electric drive includes a temperature sensor that is integrated into the windings of the stator unit and that transmits a temperature-dependent sensor signal. The sensor signal may be injected via an electrical transmitter unit into the signal processing unit of a position measuring device connected to the drive.Type: GrantFiled: October 22, 2003Date of Patent: August 16, 2005Assignee: Johannes Heidenhain GmbHInventors: Franz Gramsamer, Erwin Bratzdrum, Robert Wastlhuber, Udo Ollert
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Patent number: 6894984Abstract: A method for serial data transmission between a position measuring system and a processing unit that includes transmitting a digital data word of defined length between the processing unit and the position measuring system and having a position data request signal arrive during the transmitting of the digital data word. Determining a position signal regarding a relative chronological position of the position data request signal with respect to the transmitted digital data word and transmitting the determined position signal to the position measuring system.Type: GrantFiled: June 18, 2001Date of Patent: May 17, 2005Assignee: Dr. Johannes Heidenhaim GmbHInventors: Robert Wastlhuber, Erwin Bratzdrum
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Publication number: 20050081123Abstract: A method for examining an interface to a plurality of peripheral units of a numeric control system includes, firstly, an initialization step in which an unequivocal identification character is written into an identification character register of each peripheral unit, the register functioning in response to an address bus. The identification character register is read out in an examination step and is -compared with an expected value. If an identification character does not tally with the corresponding expected value, an error message is produced, and if all of the identification characters tally with the corresponding expected values, the addressing of all of the peripheral units by the address bus is deemed successful.Type: ApplicationFiled: November 30, 2002Publication date: April 14, 2005Inventors: Robert Wastlhuber, Alfons Baumgartner
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Patent number: 6829557Abstract: A method for the incremental position determination of two objects, which are movable in relation to each other. The method including generating at least one pair of position-dependent incremental scanning signals during a position determination between two objects, which have a defined phase offset from each other. Passing the at least one pair of position-dependent incremental scanning signals on to a transformation table in which one or several output signal values with respect to each pair of the at least one pair of position-dependent incremental scanning signals have been stored. Transferring the one or several output signals from the transformation table to an evaluation unit wherein position determination between the two objects is performed. Dynamically updating the transformation table during the position determination between the two objects.Type: GrantFiled: January 9, 2003Date of Patent: December 7, 2004Assignee: Dr. Johannes Heidenhain GmbHInventors: Mathias Hausschmid, Robert Wastlhuber
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Publication number: 20040091017Abstract: A system for monitoring the temperature prevailing in the stator unit of an electric drive includes a temperature sensor that is integrated into the windings of the stator unit and that transmits a temperature-dependent sensor signal. The sensor signal may be injected via an electrical transmitter unit into the signal processing unit of a position measuring device connected to the drive.Type: ApplicationFiled: October 22, 2003Publication date: May 13, 2004Inventors: Franz Gramsamer, Erwin Bratzdrum, Robert Wastlhuber, Udo Ollert
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Publication number: 20040058659Abstract: In a device and a method for correcting scanning signals of incremental position transducers, which exhibit deviations from the signal shape required by a downstream evaluation unit, the scanning signals are fed to a correction unit in response to a signal request and, to implement the correction, are linked there to correction data which were generated in consideration of active values of the scanning signals. Following each signal request, for at least one predefined time segment, the correction unit is exclusively fed scanning signals which are used for generating correction data.Type: ApplicationFiled: September 22, 2003Publication date: March 25, 2004Inventors: Peter Oberhans, Robert Wastlhuber, Gabriele Ehgartner
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Patent number: 6704685Abstract: A device for determining a signal running time between a position measuring system and a processing unit. The device includes first and second position signal generators that generate position signals regarding relative chronological position of a first running time measuring signal with respect to first and second data words. A first transmitter that transmits the first running time measuring signal and the first position signal to the position measuring system at the end of transmission of the first data word to the position measuring system. A second transmitter that transmits a second running time measuring signal and the second position signal to the processing unit after the end of transmission of the second data word. A timer that ascertains a length of time between transmission of the first running time measuring signal and reception of the second running time measuring signal by the processing unit and a signal running time generator that determines a signal running time from the length of time.Type: GrantFiled: December 20, 2002Date of Patent: March 9, 2004Assignee: Dr. Johannes Heindenheim GmbHInventors: Erwin Bratzdrum, Robert Wastlhuber
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Publication number: 20030139829Abstract: A method for the incremental position determination of two objects, which are movable in relation to each other. The method including generating at least one pair of position-dependent incremental scanning signals during a position determination between two objects, which have a defined phase offset from each other. Passing the at least one pair of position-dependent incremental scanning signals on to a transformation table in which one or several output signal values with respect to each pair of the at least one pair of position-dependent incremental scanning signals have been stored. Transferring the one or several output signals from the transformation table to an evaluation unit wherein position determination between the two objects is performed. Dynamically updating the transformation table during the position determination between the two objects.Type: ApplicationFiled: January 9, 2003Publication date: July 24, 2003Inventors: Mathias Hausschmid, Robert Wastlhuber
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Publication number: 20030135348Abstract: A device for determining a signal running time between a position measuring system and a processing unit. The device includes first and second position signal generators that generate position signals regarding relative chronological position of a first running time measuring signal with respect to first and second data words. A first transmitter that transmits the first running time measuring signal and the first position signal to the position measuring system at the end of transmission of the first data word to the position measuring system. A second transmitter that transmits a second running time measuring signal and the second position signal to the processing unit after the end of transmission of the second data word. A timer that ascertains a length of time between transmission of the first running time measuring signal and reception of the second running time measuring signal by the processing unit and a signal running time generator that determines a signal running time from the length of time.Type: ApplicationFiled: December 20, 2002Publication date: July 17, 2003Inventors: Erwin Bratzdrum, Robert Wastlhuber
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Publication number: 20020015449Abstract: A method for serial data transmission between a position measuring system and a processing unit that includes transmitting a digital data word of defined length between the processing unit and the position measuring system and having a position data request signal arrive during the transmitting of the digital data word. Determining a position signal regarding a relative chronological position of the position data request signal with respect to the transmitted digital data word and transmitting the determined position signal to the position measuring system.Type: ApplicationFiled: June 18, 2001Publication date: February 7, 2002Inventors: Robert Wastlhuber, Erwin Bratzdrum
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Publication number: 20020015389Abstract: A method for serial data transmission between a position measuring system and a processing unit that includes transmitting position data and further data between the position measuring system and the processing unit in serial form as digital data words, transmitting up-to-date position data between the position measuring system and the processing unit upon a position request command and always transmitting further data, whose processing is not time-critical, immediately following the up-to-date position data.Type: ApplicationFiled: June 18, 2001Publication date: February 7, 2002Inventors: Robert Wastlhuber, Erich Strasser, Christian Eisenberger, Erwin Bratzdrum
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Patent number: 6043768Abstract: A device and method for data transmission between a transducer and a processing unit which are coupled by one or several signal transmission lines, to selectively activate at least two different modes of operation of the transducer. The device includes a comparator unit which identifies the respectively activated mode of operation by comparing signals present on at least one signal transmission line with predetermined reference signals.Type: GrantFiled: February 10, 1997Date of Patent: March 28, 2000Assignee: Johannes Heidenhain GmbHInventors: Erich Strasser, Robert Wastlhuber, Hermann Hofbauer, Christian Zehentner, Steffen Bielski, Helmut Huber
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Patent number: 5687103Abstract: The invention concerns a device and a method for serial data transmission. In the position measuring device there is provided a memory, in which specific parameters of the position measuring device are kept. These parameters can be sent on the data line to a processing unit, by which the measurement values are transmitted during the position measurement. By receiving the parameters, the processing unit is adjusted to the connected position measuring device.Type: GrantFiled: May 12, 1995Date of Patent: November 11, 1997Assignee: Johannes Heidenhain GmbHInventors: Rainer Hagl, Steffen Bielski, Hermann Hofbauer, Robert Wastlhuber, Erich Strasser