Patents by Inventor Steffen Walker

Steffen Walker 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).

  • Publication number: 20260154229
    Abstract: A transmission signal evaluation module of a transmitting/receiving device of a subscriber station. The transmission module is configured to transmit a digital transmission signal as an analog differential signal on a bus of the bus system to transmit a message to at least one other subscriber station of the bus system. The transmission signal evaluation module has an MICI block for decoding a first transmission signal generated by a communication controller of the subscriber station, and for generating, from the first transmission signal, a decoded transmission signal and a mode of operation switch signal, with which the transmission module is to be signaled to switch to predetermined operating modes for communication phases, to detect the analog differential signal for the bus, a delay block, and a synchronization block for generating the digital transmission signal for the transmission module from the decoded transmission signal and the delayed transmission signal.
    Type: Application
    Filed: November 16, 2023
    Publication date: June 4, 2026
    Inventors: Olaf Kleinwegen, Steffen Walker
  • Patent number: 12647299
    Abstract: A transmitting module and a method for transmitting differential signals in a serial bus system. The transmitting module has a first to a fourth transmission stage connected in a full bridge, in which the first and fourth transmission stage are connected in series and the third and second transmission stages are connected in series, and a current limiting circuit for measuring and evaluating currents through a first and a second bleeder resistor which are connected to the full bridge. The first to fourth transmission stages generate differential bus signals for a bus in response to the two different values of a digital transmit signal such that the transmitting module generates, in its first operating mode, a first or second bus state on the bus and generates, in its second operating mode, a third or fourth bus state.
    Type: Grant
    Filed: September 19, 2024
    Date of Patent: June 2, 2026
    Assignee: ROBERT BOSCH GBMH
    Inventors: Christian Mages, Steffen Walker
  • Publication number: 20260142850
    Abstract: A transmitting/receiving device for a station of a serial bus system. The transmitting/receiving device includes a transmission module for transmitting a digital transmit signal as an analog differential signal onto a bus, a reception module for receiving signals from the bus and generating a digital receive signal from the analog differential signal, and a module for ascertaining which of at least two communication standards is used on the bus, to switch the transmission module and the reception module according to the ascertained communication standard. The transmission module has a full bridge including a first and fourth transmission stage connected in series, and a third and second transmission stage connected in series. The transmission module sets resistance values of resistors of the first to fourth transmission stages based on the ascertainment result of the module for ascertainment and generates the analog differential signal with the first to fourth transmission stages.
    Type: Application
    Filed: November 17, 2025
    Publication date: May 21, 2026
    Inventors: Steffen Walker, Christian Mages, Felix Lang
  • Publication number: 20260072865
    Abstract: A transceiver for a commander or responder subscriber station of a serial bus system. The transceiver includes a transmitter module for sending a digital transmission signal based on a frame for a message to be sent via the bus as a differential signal to a bus of the bus system, a receiver module for receiving a differential signal from the bus and for generating a digital reception signal from the differential signal received from the bus and for forwarding the digital reception signal to a communication control device for evaluating the digital reception signal using a predetermined frame for a message from the bus, and an operating mode switching module for switching the transmitter module and the receiver module into a first operating mode between messages on the bus or into a second or third operating mode for sending or receiving a message.
    Type: Application
    Filed: August 8, 2025
    Publication date: March 12, 2026
    Inventors: Arthur Mutter, Steffen Walker
  • Publication number: 20260025292
    Abstract: A transmitting/receiving device for a subscriber station of a serial bus system. The transmitting/receiving device has a receiver module for serially receiving differential signals from a bus and for generating a digital reception signal for a communication control device, an operating mode control module for switching the receiver module between a first operating mode and a second operating mode so that the receiver module is configured to generate the digital reception signal in the first operating mode based on differential signals generated using a first physical layer and in the second operating mode based on differential signals generated using a second physical layer, and a first evaluation block for evaluating whether a predetermined number of falling edges and/or rising edges occurs serially in the digital reception signal and whether the reception signal that comprises the edges that occurred is based on differential signals generated using the second physical layer.
    Type: Application
    Filed: July 7, 2025
    Publication date: January 22, 2026
    Inventors: Arthur Mutter, Steffen Walker
  • Patent number: 12443552
    Abstract: A transmission module of a transmitting/receiving device for a subscriber station of a serial bus system and a method. The transmission module transmits a digital transmit signal as an analog differential signal on a bus of the bus system to transmit a message to another subscriber station. The transmission module generates the states, specified by the digital transmit signal over the time, on the bus by changing bus voltage and/or bus impedance. The transmission module changes the specified states on the bus via a predetermined sequence of intermediate states for the bus voltage and/or the bus impedance toward the desired state on the bus. The transmission module, when signaling changes during a transition between two specified states on the bus, changes the transition back again continuously with the opposite sequence of intermediate states from the intermediate state reached by then.
    Type: Grant
    Filed: May 22, 2024
    Date of Patent: October 14, 2025
    Assignee: ROBERT BOSCH GMBH
    Inventors: Christian Mages, Steffen Walker
  • Publication number: 20250310148
    Abstract: A transmitting/receiving device for a subscriber station of a serial bus system. The transmitting/receiving device has a transmitting/receiving block for transmitting a digital transmit signal as an analog differential signal to a bus of the bus system to transmit a message to at least one other subscriber station of the bus system and/or for receiving an analog signal from the bus, a transformation block for outputting a voltage as a voltage supply for the transmitting/receiving block, and a terminal for an external voltage source. The transformation block is connected between the terminal for the external voltage source and the transmitting/receiving block. The transformation block is designed to transform a supply voltage applied to the terminal into a voltage which has a higher voltage value than the supply voltage applied to the terminal. A method is also described.
    Type: Application
    Filed: March 25, 2025
    Publication date: October 2, 2025
    Inventors: Steffen Walker, Rolf Kaack, Thoralf Rosahl
  • Publication number: 20250300853
    Abstract: A transmission module and a method for transmitting differential signals in a serial bus system. The transmission module has a first transmission stage for generating at least one transmission current for a first signal to be transmitted to a bus of the bus system, a second transmission stage for generating at least one transmission current for a second signal to be transmitted to the bus as a signal differential to the first signal, a third transmission stage for generating at least one transmission current for the first signal, and a fourth transmission stage for generating at least one transmission current for the second signal. The first to fourth transmission stages are connected into a full bridge, in which the first and fourth transmission stages are connected in series and the third and second transmission stages are connected in series.
    Type: Application
    Filed: March 19, 2025
    Publication date: September 25, 2025
    Inventors: Christian Mages, Steffen Walker
  • Patent number: 12413445
    Abstract: A communication control device. The communication control device has a communication control module for generating a transmit signal for controlling communication of the subscriber station with other subscriber station(s) of the bus system which uses at least one first communication phase and one second communication phase for exchanging messages between subscriber stations of the bus system, and an interface module for encoding the transmit signal in at least one part of the second communication phase of a message into an encoded transmit signal, and for inserting additional data into at least one symbol of the encoded transmit signal. The interface module is configured to insert the additional data into the encoded transmit signal as at least one symbol of the encoded transmit signal serially with the information of the symbol of the transmit signal. The symbol duration of the transmit signal and of the encoded transmit signal is identical.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: September 9, 2025
    Assignee: ROBERT BOSCH GMBH
    Inventors: Steffen Walker, Arthur Mutter, Florian Hartwich
  • Patent number: 12405911
    Abstract: A transfer device for a differential bus system. The transfer device includes a first bus connection and a second bus connection for connection to a transfer medium of the differential bus system, a transmitting device that is connected and/or connectable to the first bus connection and the second bus connection, and an impedance adaptation circuit that is designed to influence an impedance at the first bus connection and/or at the second bus connection.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: September 2, 2025
    Assignee: ROBERT BOSCH GMBH
    Inventors: Sebastian Stegemann, Steffen Walker
  • Publication number: 20250272260
    Abstract: A transmitting module for transmitting differential signals in a serial bus system. The transmitting module has a first transmission stage for generating transmission currents for a first signal to be sent to a bus, a second transmission stage for generating transmission currents for a second signal to be sent to the bus as a signal differential to the first signal, a third transmission stage for generating transmission currents for the first signal, and a fourth transmission stage for generating transmission currents for the second signal. The first to fourth transmission stages are connected in a full bridge. The first and fourth transmission stages are connected in series. The third and second transmission stages are connected in series. The first to fourth transmission stages each have at least two current stages, each of which has a switchable resistor, wherein the switchable resistors of a transmission stage have different resistance values.
    Type: Application
    Filed: February 12, 2025
    Publication date: August 28, 2025
    Inventors: Christian Mages, Steffen Walker
  • Publication number: 20250274307
    Abstract: A transmitting module. The transmitting module has a first transmission stage for generating transmission currents for a first signal to be transmitted onto a bus of a serial bus system, a second transmission stage for generating transmission currents for a second signal to be transmitted onto the bus as a signal that is differential to the first signal, a third transmission stage for generating transmission currents for the first signal, and a fourth transmission stage for generating transmission currents for the second signal. The first to fourth transmission stages are connected in a full bridge. The first and fourth transmission stages are connected in series and the third and second transmission stages are connected in series. Each of the first to fourth transmission stages has at least two current stages, connected in parallel with one another. Each of the at least two current stages has a switchable resistor.
    Type: Application
    Filed: February 12, 2025
    Publication date: August 28, 2025
    Inventors: Christian Mages, Steffen Walker
  • Publication number: 20250267033
    Abstract: An interface module for a subscriber station of a serial bus system. A transmitting module transmits a digital transmission signal as an analog differential signal onto a bus of the bus system to transmit a message to at least one other subscriber station of the bus system. Bits in the digital transmission signal have a longer bit duration in a first communication phase than in a second. The interface module has a time measuring block for measuring, with a predetermined timing clock, a predetermined time in the digital transmission signal, which is designed to stop its measurement if the measured value of the time measuring block has reached a predetermined limit value, and an evaluation block for evaluating the measured value of the time measuring block to set the transmitting module for operation in the first communication phase or in the second communication phase based on the evaluation result.
    Type: Application
    Filed: June 26, 2023
    Publication date: August 21, 2025
    Inventors: Olaf Kleinwegen, Steffen Walker
  • Publication number: 20250238393
    Abstract: A responder subscriber station for a serial bus system, a commander subscriber station, and a method for communication. The responder subscriber station has a communication control device for controlling communication of the subscriber station with a commander subscriber station and for evaluating at least one signal, received from a bus of the bus system, based on a predetermined frame, wherein a field can be present in the frame for switching a first bit time and a first physical layer in a first communication phase to a second bit time and a second physical layer in a second communication phase, and a synchronization module. The synchronization module is designed to switch off its synchronization function if the communication control device is to act as a transmitter of the frame, so that the responder subscriber station is the transmitter of the signal received from the bus.
    Type: Application
    Filed: December 18, 2024
    Publication date: July 24, 2025
    Inventors: Arthur Mutter, Steffen Walker
  • Publication number: 20250202522
    Abstract: A subscriber station for a serial bus system and a method for transmitting a message with differential signals in a serial bus system. The subscriber station has a transmitting/receiving device for transmitting a digital transmit signal as an analog differential signal onto a bus of the bus system to transmit a message to at least one other subscriber station of the bus system, and/or for receiving an analog signal from the bus, a switching module for switching off a bus bias voltage for the bus during a predetermined detection period, a bus voltage detection module for detecting the bus voltage received by the transmitting/receiving device from the bus during the predetermined detection period, and a bus voltage setting module for setting the bus bias voltage to a voltage value resulting from a detection carried out by the bus voltage detection module during the predetermined detection period.
    Type: Application
    Filed: December 4, 2024
    Publication date: June 19, 2025
    Inventors: Rolf Kaack, Steffen Walker
  • Publication number: 20250150301
    Abstract: A transmitting module for a transmitting/receiving device of a subscriber station of a serial bus system. The transmitting module transmits a digital transmit signal as an analog differential signal to a bus of the bus system to transmit a message to at least one other subscriber station. The transmitting module has transmission stages with parallel circuits including switchable resistors, and a control part for step-by-step control of the switching of the switchable resistors. At least two of the switchable resistors are arranged so as to be switchable together in a resistor block. At least two resistor blocks are provided which have at least one of the switchable resistors. The control part generates the bus states predetermined by the digital transmit signal over time on the bus by step-by-step changing the number of actively switched resistor blocks over time.
    Type: Application
    Filed: October 31, 2024
    Publication date: May 8, 2025
    Inventors: Christian Mages, Steffen Walker
  • Publication number: 20250141712
    Abstract: A transmitting module and a method for transmitting differential signals in a serial bus system. The transmitting module has a first to a fourth transmission stage connected in a full bridge, in which the first and fourth transmission stage are connected in series and the third and second transmission stages are connected in series, and a current limiting circuit for measuring and evaluating currents through a first and a second bleeder resistor which are connected to the full bridge. The first to fourth transmission stages generate differential bus signals for a bus in response to the two different values of a digital transmit signal such that the transmitting module generates, in its first operating mode, a first or second bus state on the bus and generates, in its second operating mode, a third or fourth bus state.
    Type: Application
    Filed: September 19, 2024
    Publication date: May 1, 2025
    Inventors: Christian Mages, Steffen Walker
  • Patent number: 12284053
    Abstract: A transmitting/receiving device for a bus system and a method for reducing an oscillation tendency in the transition between different bit states. The transmitting/receiving device has a transmitting stage for transmitting a transmission signal to a first bus wire of a bus of the bus system and for transmitting the transmission signal as an inverse signal to a second bus wire of the bus, and an asymmetry reduction module for reducing an asymmetry of bus signals arising in the bus wires. The asymmetry reduction module includes a polarity reversing diode, whose cathode is connected to the cathode of a reverse polarity diode of the transmitting stage. The asymmetry reduction module switches a potential of the cathode of the polarity reversing diode to a potential that is greater than or equal to a level of a recessive bus state.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: April 22, 2025
    Assignee: ROBERT BOSCH GMBH
    Inventors: Sebastian Stegemann, Steffen Walker
  • Patent number: 12235776
    Abstract: A sensor and a sensor network. The sensor comprises a switchable RC low-pass filter, an evaluation unit, a synchronization unit, and a two-wire interface. The two-wire interface is configured to be connected to a control device to receive an electrical supply voltage, provided by the control device, for supplying the sensor with electrical energy, to receive sync pulses superimposed on the supply voltage for synchronizing a data transmission from the control device, and to transmit data to the control device. The RC low-pass filter generates a reference signal by low-pass filtering an input signal, and to have a first time constant in a first mode and a second time constant in a second mode, wherein the second time constant is shorter than the first time constant. The evaluation unit stabilizes the reference signal by alternately switching the RC low-pass filter into the first mode and into the second mode.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: February 25, 2025
    Assignee: ROBERT BOSCH GMBH
    Inventors: Steffen Walker, Ricardo Erckert
  • Publication number: 20240411713
    Abstract: A transmission module of a transmitting/receiving device for a subscriber station of a serial bus system and a method. The transmission module transmits a digital transmit signal as an analog differential signal on a bus of the bus system to transmit a message to another subscriber station. The transmission module generates the states, specified by the digital transmit signal over the time, on the bus by changing bus voltage and/or bus impedance. The transmission module changes the specified states on the bus via a predetermined sequence of intermediate states for the bus voltage and/or the bus impedance toward the desired state on the bus. The transmission module, when signaling changes during a transition between two specified states on the bus, changes the transition back again continuously with the opposite sequence of intermediate states from the intermediate state reached by then.
    Type: Application
    Filed: May 22, 2024
    Publication date: December 12, 2024
    Inventors: Christian Mages, Steffen Walker