Patents by Inventor Helmut Theiler

Helmut Theiler 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).

  • Patent number: 10218410
    Abstract: A host interface circuit operates in a power mode when connected to an accessory device compatible with a power supply via a first line of a data cable. During power mode, the host interface circuit couples a power regulator to the first line. The host interface circuit operates in a legacy mode when connected to an accessory device not compatible with such a power supply and couples the legacy terminal to the first line during legacy mode. An accessory interface circuit configured to operate in a power mode when connected to a host device capable of a power supply via a first line couples a power input of an active device to the first line and a data input of the active device to a second line during power mode.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: February 26, 2019
    Assignee: ams AG
    Inventors: Horst Gether, Helmut Theiler
  • Patent number: 10129639
    Abstract: A set of headphones includes a connector with a first connection contact and a second connection contact as well as a loudspeaker, which is connected to the first connection contact in order to supply a loudspeaker signal. The set of headphones also includes a first and a second digital microphone, each of which is set up to generate a digital microphone signal, in particular with a binary bit stream. A multiplexer, which is coupled, at an output, to the second connection contact, is set up to generate a coded multiplex signal at the output on the basis of the microphone signals.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: November 13, 2018
    Assignee: ams AG
    Inventor: Helmut Theiler
  • Patent number: 9894436
    Abstract: A host interface for a media device comprises a first and a second host audio terminal for receiving a first and a second analog audio signal, a first and a second connector audio terminal for connecting a first and a second pole of a four-pole connector, and a host control circuit. The host control circuit is adapted to detect whether a device requiring a supply signal over the four-pole connector is connected. If no such device is detected, the first and the second analog audio signal are passed to the first and the second connector audio terminal. If such a device is detected, the first connector audio terminal is connected to a supply terminal.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: February 13, 2018
    Assignee: ams AG
    Inventor: Helmut Theiler
  • Publication number: 20170288728
    Abstract: A host interface circuit operates in a power mode when connected to an accessory device compatible with a power supply via a first line of a data cable. During power mode, the host interface circuit couples a power regulator to the first line. The host interface circuit operates in a legacy mode when connected to an accessory device not compatible with such a power supply and couples the legacy terminal to the first line during legacy mode. An accessory interface circuit configured to operate in a power mode when connected to a host device capable of a power supply via a first line couples a power input of an active device to the first line and a data input of the active device to a second line during power mode.
    Type: Application
    Filed: August 21, 2015
    Publication date: October 5, 2017
    Applicant: ams AG
    Inventors: Horst GETHER, Helmut THEILER
  • Patent number: 9779714
    Abstract: An active noise control arrangement has a signal input (SI), a microphone input (MI), a signal output (SO) and a digital interface (DI). A signal processing block (SP) coupled to the microphone input (MI) by means of an amplifier (MA) has a digitally adjustable gain and comprises combining means (CM) and a filter (TP). The signal processing block (SP) is configured to generate an output signal at the signal output (SO) as a function of an input signal at the signal input (SI) and an amplified microphone signal. A control block (CB) is coupled to the digital interface (DI) and configured to adjust the gain of the amplifier (MA).
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: October 3, 2017
    Assignee: AMS AG
    Inventor: Helmut Theiler
  • Publication number: 20170195785
    Abstract: A set of headphones includes a connector with a first connection contact and a second connection contact as well as a loudspeaker, which is connected to the first connection contact in order to supply a loudspeaker signal. The set of headphones also includes a first and a second digital microphone, each of which is set up to generate a digital microphone signal, in particular with a binary bit stream. A multiplexer, which is coupled, at an output, to the second connection contact, is set up to generate a coded multiplex signal at the output on the basis of the microphone signals.
    Type: Application
    Filed: January 27, 2017
    Publication date: July 6, 2017
    Inventor: Helmut THEILER
  • Publication number: 20170134851
    Abstract: A host interface for a media device comprises a first and a second host audio terminal for receiving a first and a second analog audio signal, a first and a second connector audio terminal for connecting a first and a second pole of a four-pole connector, and a host control circuit. The host control circuit is adapted to detect whether a device requiring a supply signal over the four-pole connector is connected. If no such device is detected, the first and the second analog audio signal are passed to the first and the second connector audio terminal. If such a device is detected, the first connector audio terminal is connected to a supply terminal.
    Type: Application
    Filed: June 11, 2015
    Publication date: May 11, 2017
    Inventor: Helmut THEILER
  • Patent number: 9628264
    Abstract: A communication system has a host communication circuit and a client communication circuit, which are connected to each other by means of a single signal wire. The host communication circuit generates a voltage modulated signal on the signal wire based on a reference clock signal, which in each clock cycle has a first period with a significant voltage change based on a clock edge of the reference clock signal, and a second period with a basically constant voltage variation. The host communication circuit (HCC) further can demodulate a current modulated signal received via the signal wire from the client communication circuit. The client communication circuit is configured to detect the significant voltage change in order to generate respective sync pulses in a sync signal, which is used to generate a client clock signal.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: April 18, 2017
    Assignee: AMS AG
    Inventors: Helmut Theiler, Alexander Costa
  • Patent number: 9591394
    Abstract: A set of headphones includes a connector with a first connection contact and a second connection contact as well as a loudspeaker, which is connected to the first connection contact in order to supply a loudspeaker signal. The set of headphones also includes a first and a second digital microphone, each of which is set up to generate a digital microphone signal, in particular with a binary bit stream. A multiplexer, which is coupled, at an output, to the second connection contact, is set up to generate a coded multiplex signal at the output on the basis of the microphone signals.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: March 7, 2017
    Assignee: AMS AG
    Inventor: Helmut Theiler
  • Patent number: 9570997
    Abstract: A power supply circuit for supplying power to at least two loads which are connected to said power supply circuit comprises a current source which can be operated in a clocked manner and has a control input for adjusting the power. At least two load strings are connected in parallel between a power supply connection, which is coupled to the current source, and a reference connection. Each load string has a load and charge storage means which is connected in parallel with the load. A switch is used to selectively switch the current path of the load string. A sensor having a sensor resistor which is connected in the current path of the load string is used to detect a current flowing through the connected load string. Furthermore, the controlled power supply circuit comprises a control circuit which is coupled to the switch and to the sensor of each load string for the purpose of activating each load string in a time-multiplexed manner.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: February 14, 2017
    Assignee: AMS AG
    Inventor: Helmut Theiler
  • Publication number: 20160080141
    Abstract: A communication system has a host communication circuit and a client communication circuit, which are connected to each other by means of a single signal wire. The host communication circuit generates a voltage modulated signal on the signal wire based on a reference clock signal, which in each clock cycle has a first period with a significant voltage change based on a clock edge of the reference clock signal, and a second period with a basically constant voltage variation. The host communication circuit (HCC) further can demodulate a current modulated signal received via the signal wire from the client communication circuit. The client communication circuit is configured to detect the significant voltage change in order to generate respective sync pulses in a sync signal, which is used to generate a client clock signal.
    Type: Application
    Filed: April 9, 2014
    Publication date: March 17, 2016
    Inventors: Helmut THEILER, Alexander COSTA
  • Patent number: 9263024
    Abstract: In an embodiment, a circuit arrangement for active noise cancellation, comprises a first input (E1) for supplying a playback signal (Spb), a second input (E2) for supplying a sensor signal (Sanc), a first and a second terminal (A1, A2) of an output that is designed for being connected to a loudspeaker (Lsp) and a compensating device for respectively generating a first and a second noise signal (Sanc1, Sanc2) as a function of the sensor signal (Sanc), wherein the first and the second input (E1, E2) are coupled to the first and the second terminal of the output (A1, A2) by means of the compensating device (Komp) in such a way that a virtual playback signal (Ssp1) is provided at the first terminal (A1) of the output (A1, A2) and a superposition signal (Ssp2) is provided at the second terminal (A2) of the output (A1, A2) such that a differential signal between the virtual playback signal (Ssp1) and the superposition signal (Ssp2) can be fed to the loudspeaker.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: February 16, 2016
    Assignee: ams AG
    Inventor: Helmut Theiler
  • Patent number: 9158316
    Abstract: A circuit arrangement includes a load current controller (10a) and a monitoring device (11a, 11b). The load current controller (10a) has its input side connected to a first reference signal connection (A6) and a load reference connection (A2), the latter being able to be coupled to an output of the current source (SQn) and being designed to provide a control signal (IB) at an output which is coupled to a control connection (A1) for controlling the current source (SQn). The control signal (IB) is determined on the basis of a comparison of a load current (IL) with a first reference signal (IL-REF, IREF, VREF). The monitoring device (11a, 11b) has its input side coupled to the output of the load current controller (10a) and to one of the inputs of the load current controller (10a). The monitoring device (11a, 11b) is designed to provide a feedback signal (RS) at an output coupled to the feedback connection (A3) on the basis of a comparison of the control signal (IB) with the load current (IL).
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: October 13, 2015
    Assignee: ams AG
    Inventor: Helmut Theiler
  • Patent number: 9078320
    Abstract: A voltage supply arrangement for driving an electrical load, particularly a light-emitting diode, comprises a driver circuit (11). The driver circuit (11) features a driver output (12) for making available a driver signal (SB) for controlling a load path (34) that comprises a means (36) for connecting the electrical load (37). The driver circuit (11) furthermore comprises a device (13) for determining an AC signal component of the driver signal (SB), the input side of which is coupled to the driver output (12) and at the output side of which can be tapped a measurement signal (SI) that is dependent on the AC signal component of the driver signal (SB) and according to which a supply voltage (VOUT) of the load path (34) can be adjusted.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: July 7, 2015
    Assignee: ams AG
    Inventors: Stefan Wiegele, Helmut Theiler
  • Publication number: 20140306530
    Abstract: A power supply circuit for supplying power to at least two loads which are connected to said power supply circuit comprises a current source which can be operated in a clocked manner and has a control input for adjusting the power. At least two load strings are connected in parallel between a power supply connection, which is coupled to the current source, and a reference connection. Each load string has a load and charge storage means which is connected in parallel with the load. A switch is used to selectively switch the current path of the load string. A sensor having a sensor resistor which is connected in the current path of the load string is used to detect a current flowing through the connected load string. Furthermore, the controlled power supply circuit comprises a control circuit which is coupled to the switch and to the sensor of each load string for the purpose of activating each load string in a time-multiplexed manner.
    Type: Application
    Filed: February 14, 2012
    Publication date: October 16, 2014
    Applicant: AMS AG
    Inventor: Helmut Theiler
  • Publication number: 20140232271
    Abstract: A voltage supply arrangement for driving an electrical load, particularly a light-emitting diode, comprises a driver circuit (11). The driver circuit (11) features a driver output (12) for making available a driver signal (SB) for controlling a load path (34) that comprises a means (36) for connecting the electrical load (37). The driver circuit (11) furthermore comprises a device (13) for determining an AC signal component of the driver signal (SB), the input side of which is coupled to the driver output (12) and at the output side of which can be tapped a measurement signal (SI) that is dependent on the AC signal component of the driver signal (SB) and according to which a supply voltage (VOUT) of the load path (34) can be adjusted.
    Type: Application
    Filed: June 27, 2012
    Publication date: August 21, 2014
    Applicant: AMS AG
    Inventors: Stefan Wiegele, Helmut Theiler
  • Publication number: 20140205109
    Abstract: A set of headphones (1) comprises a connector (15) with a first connection contact (16, 17) and a second connection contact (18) as well as a loudspeaker (3, 5), which is connected to the first connection contact (16, 17) in order to supply a loudspeaker signal. The set of headphones (1) furthermore comprises a first and a second digital microphone (7, 8, 9), each of which is set up to generate a digital microphone signal, in particular with a binary bit stream. A multiplexer (23), which is coupled, at an output, to the second connection contact (18), is set up to generate a coded multiplex signal at the output on the basis of the microphone signals.
    Type: Application
    Filed: April 24, 2012
    Publication date: July 24, 2014
    Applicant: AMS AG
    Inventor: Helmut Theiler
  • Publication number: 20130329901
    Abstract: In an embodiment, a circuit arrangement for active noise cancellation, comprises a first input (E1) for supplying a playback signal (Spb), a second input (E2) for supplying a sensor signal (Sanc), a first and a second terminal (A1, A2) of an output that is designed for being connected to a loudspeaker (Lsp) and a compensating device for respectively generating a first and a second noise signal (Sanc1, Sanc2) as a function of the sensor signal (Sanc),wherein the first and the second input (E1, E2) are coupled to the first and the second terminal of the output (A1, A2) by means of the compensating device (Komp) in such a way that a virtual playback signal (Ssp1) is provided at the first terminal (A1) of the output (A1, A2) and a superposition signal (Ssp2) is provided at the second terminal (A2) of the output (A1, A2) such that a differential signal between the virtual playback signal (Ssp1) and the superposition signal (Ssp2) can be fed to the loudspeaker.
    Type: Application
    Filed: November 9, 2011
    Publication date: December 12, 2013
    Applicant: ams AG
    Inventor: Helmut Theiler
  • Publication number: 20130314064
    Abstract: A circuit arrangement comprises a load current controller (10a) and a monitoring device (11a, 11b). The load current controller (10a) has its input side connected to a first reference signal connection (A6) and a load reference connection (A2), the latter being able to be coupled to an output of the current source (SQn) and being designed to provide a control signal (IB) at an output which is coupled to a control connection (A1) for controlling the current source (SQn). The control signal (IB) is determined on the basis of a comparison of a load current (IL) with a first reference signal (IL-REF, IREF, VREF). The monitoring device (11a, 11b) has its input side coupled to the output of the load current controller (10a) and to one of the inputs of the load current controller (10a). The monitoring device (11a, 11b) is designed to provide a feedback signal (RS) at an output coupled to the feedback connection (A3) on the basis of a comparison of the control signal (IB) with the load current (IL).
    Type: Application
    Filed: December 1, 2011
    Publication date: November 28, 2013
    Applicant: ams AG
    Inventor: Helmut Theiler
  • Publication number: 20130208908
    Abstract: An active noise control arrangement has a signal input (SI), a microphone input (MI), a signal output (SO) and a digital interface (DI). A signal processing block (SP) coupled to the microphone input (MI) by means of an amplifier (MA) has a digitally adjustable gain and comprises combining means (CM) and a filter (TP). The signal processing block (SP) is configured to generate an output signal at the signal output (SO) as a function of an input signal at the signal input (SI) and an amplified microphone signal. A control block (CB) is coupled to the digital interface (DI) and configured to adjust the gain of the amplifier (MA).
    Type: Application
    Filed: October 6, 2009
    Publication date: August 15, 2013
    Applicant: Austriamicrsystems AG
    Inventors: Helmut Theiler, Roberto Simmarano