Patents by Inventor Robert A. Marks

Robert A. Marks 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: 20250149470
    Abstract: Integrated circuits (ICs) that avoid or mitigate creation of changes in accumulated charge in a silicon-on-insulator (SOI) substrate, particularly an SOI substrate having a trap rich layer. In one embodiment, a FET is configured such that, in a standby mode, the FET is turned OFF while maintaining essentially the same VDS as during an active mode. In another embodiment, a FET is configured such that, in a standby mode, current flow through the FET is interrupted while maintaining essentially the same VGS as during the active mode. In another embodiment, a FET is configured such that, in a standby mode, the FET is switched into a very low current state (a “trickle current” state) that keeps both VGS and VDS close to their respective active mode operational voltages. Optionally, S-contacts may be formed in an IC substrate to create protected areas that encompass FETs that are sensitive to accumulated charge effects.
    Type: Application
    Filed: January 13, 2025
    Publication date: May 8, 2025
    Inventors: Robert Mark Englekirk, Keith Bargroff, Christopher C. Murphy, Tero Tapio Ranta, Simon Edward Willard
  • Publication number: 20250150035
    Abstract: Various methods and circuital arrangements for biasing one or more gates of stacked transistors of an amplifier are possible where the amplifier is configured to operate in at least an active mode and a standby mode. Circuital arrangements can reduce bias circuit and stacked transistors standby current during operation in the standby mode and to reduce impedance presented to the gates of the stacked transistors during operation in the active mode while maintaining voltage compliance of the stacked transistors during both modes of operation.
    Type: Application
    Filed: January 10, 2025
    Publication date: May 8, 2025
    Inventors: Poojan WAGH, Kashish PAL, Robert Mark ENGLEKIRK, Tero Tapio RANTA, Keith BARGROFF, Simon Edward WILLARD
  • Publication number: 20250134567
    Abstract: The device is a tibial plateau leveling osteotomy (TPLO) plate used to stabilize a stifle joint in an animal in veterinary surgery after a torn cranial cruciate ligament. The TPLO plate has a proximal portion and a curved distal portion, connected by an offset portion.
    Type: Application
    Filed: January 6, 2025
    Publication date: May 1, 2025
    Applicant: Movora, LLC
    Inventor: Robert Mark Daye
  • Publication number: 20250125843
    Abstract: Apparatus and methods are disclosed for port index signalling. In one embodiment, a method for a network node includes generating at least one port indication in one of a rank nested and a non-rank nested manner; and signalling the at least one port indication in the one of the rank nested and the non-rank nested manner. In another embodiment, a method for a wireless device (WD) includes receiving at least one port indication from a network node, the at least one port index indication being received in one of a rank nested and a non-rank nested manner; and generating channel state information, CSI, feedback based on the at least one port indication.
    Type: Application
    Filed: October 24, 2024
    Publication date: April 17, 2025
    Inventors: Shiwei GAO, Sebastian FAXÉR, Robert Mark HARRISON, Siva MURUGANATHAN
  • Patent number: 12274342
    Abstract: A haircare appliance having an air inlet, an air outlet, and an airflow generator for generating an airflow from the air inlet to the air outlet and an attachment for a haircare appliance, the attachment including an air inlet, an air outlet. A curved surface adjacent to and downstream of the air outlet. The haircare appliance or the attachment has a curved surface adjacent to and downstream of the air outlet. The haircare appliance or the attachment is configured such that airflow exiting the air outlet generates a first force to attract hair toward the curved surface, and a second force to push hair away from the curved surface.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: April 15, 2025
    Assignee: Dyson Technology Limited
    Inventors: Thomas Christopher Purnell, Ayrton Lloyd Taylor Peel, David Andrew Tibbetts, Stephen Benjamin Courtney, Robert Mark Brett Coulton
  • Publication number: 20250113906
    Abstract: A hair straightening apparatus has two arms pivotably coupled at a hinge, and a central pack disposed between the first and second arms and coupled with the hair styling apparatus at the hinge on a hinge end of hair straightening apparatus. A locking mechanism is disposed within the central pack, wherein the locking mechanism includes a symmetrical, elongate lock arm disposed lengthwise within the central pack. The locking mechanism is selectively operable to lock the first and second arms in the closed position. The central pack defines a longitudinal axis, and the elongate lock arm is movable relative to the central pack between the first and second positions in parallel with the longitudinal axis defined by the central pack.
    Type: Application
    Filed: December 16, 2024
    Publication date: April 10, 2025
    Inventors: Richard David NICOLAOU, Frederick Stuart GROTRIAN, George Normile Elliot BAXTER, Nathan Haruna Waters IMHASLY, Rory William BEAUMONT, Stephen Benjamin COURTNEY, Maurizio BALLARATI, Alexander Edward HUGHES, Robert Mark Brett COULTON
  • Patent number: 12270920
    Abstract: A method for performing in a positioning, navigation, tracking, frequency-measuring, or timing system is provided.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: April 8, 2025
    Assignee: FOCAL POINT POSITIONING LIMITED
    Inventors: Ramsey Faragher, Nicolas Couronneau, Robert Mark Crockett
  • Patent number: 12267879
    Abstract: A method of transmitting a Random Access Channel (RACH) Occasion configuration to a terminal device and receiving a RACH preamble according to the RACH Occasion configuration. The RACH Occasion configuration comprises a first time resource indication identifying a first set of time resources in which the terminal device is allowed to transmit a RACH preamble according to a first random access procedure, a first frequency resource indication identifying at least a first set of frequency resources in which the terminal device is allowed to transmit the RACH preamble, a second time resource indication identifying a second set of time resources in which the terminal device is allowed to transmit a RACH preamble according to a second random access procedure, and a second frequency resource indication identifying at least a second set of frequency resources in which the terminal device is allowed to transmit the RACH preamble.
    Type: Grant
    Filed: May 25, 2023
    Date of Patent: April 1, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Zhipeng Lin, Jingya Li, Robert Mark Harrison
  • Publication number: 20250098834
    Abstract: A comb for mounting to a hair-care appliance configured to supply a heated airflow. The comb includes a housing defining an inlet for receiving an airflow from the appliance when mounted thereto and an outlet fluidly connected to the inlet for discharging the airflow. The comb further includes first and second tooth structures mounted to the housing, each tooth structure comprising a row of teeth extending longitudinally across the outlet. The comb also includes a trigger operatively connected to the first or second tooth structure and configured such that depressing the trigger provides relative longitudinal movement between the teeth of the first tooth structure and the teeth of the second tooth structure from a retracted position for receiving a tress of hair between teeth of the first and second tooth structures to an extended position for clamping the tress of hair between teeth of the tooth structures.
    Type: Application
    Filed: December 13, 2022
    Publication date: March 27, 2025
    Inventors: Rumyana Rumen DANCHEVA, Robert Mark Brett COULTON, Ayrton Lloyd Taylor PEEL, David Andrew TIBBETTS
  • Patent number: 12255588
    Abstract: Bias circuits and methods for silicon-based amplifier architectures that are tolerant of supply and bias voltage variations, bias current variations, and transistor stack height, and compensate for poor output resistance characteristics. Embodiments include power amplifiers and low-noise amplifiers that utilize a cascode reference circuit to bias the final stages of a cascode amplifier under the control of a closed loop bias control circuit. The closed loop bias control circuit ensures that the current in the cascode reference circuit is approximately equal to a selected multiple of a known current value by adjusting the gate bias voltage to the final stage of the cascode amplifier. The final current through the cascode amplifier is a multiple of the current in the cascode reference circuit, based on a device scaling factor representing the relative sizes of the transistor devices in the cascode amplifier and in the cascode reference circuit.
    Type: Grant
    Filed: April 2, 2024
    Date of Patent: March 18, 2025
    Assignee: pSemi Corporation
    Inventors: Jonathan James Klaren, David Kovac, Eric S. Shapiro, Christopher C. Murphy, Robert Mark Englekirk, Keith Bargroff, Tero Tapio Ranta
  • Patent number: 12255587
    Abstract: Various methods and circuital arrangements for biasing one or more gates of stacked transistors of an amplifier are possible where the amplifier is configured to operate in at least an active mode and a standby mode. Circuital arrangements can reduce bias circuit and stacked transistors standby current during operation in the standby mode and to reduce impedance presented to the gates of the stacked transistors during operation in the active mode while maintaining voltage compliance of the stacked transistors during both modes of operation.
    Type: Grant
    Filed: August 9, 2023
    Date of Patent: March 18, 2025
    Assignee: PSEMI CORPORATION
    Inventors: Poojan Wagh, Kashish Pal, Robert Mark Englekirk, Tero Tapio Ranta, Keith Bargroff, Simon Edward Willard
  • Patent number: 12256439
    Abstract: Embodiments of the present disclosure provide methods and apparatuses for random access procedure. A method at a user equipment (UE) comprises selecting a synchronization signal and physical broadcast channel block (SSB) with a signal measured metric satisfying a criterion. The method further comprises transmitting a first message including a random access channel (RACH) preamble on a RACH occasion and data on an uplink shared channel (USCH) to a base station. The RACH preamble and the RACH occasion are selected based on a mapping of the SSB to the RACH preamble and the RACH occasion. The method further comprises receiving a second message from the base station as a response to the first message.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: March 18, 2025
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Zhipeng Lin, Jan Christoffersson, Robert Mark Harrison
  • Publication number: 20250088162
    Abstract: Temperature compensation circuits and methods for adjusting one or more circuit parameters of a power amplifier (PA) to maintain approximately constant Gain versus time during pulsed operation sufficient to substantially offset self-heating of the PA. Some embodiments compensate for PA Gain “droop” due to self-heating using a Sample and Hold (S&H) circuit. The S&H circuit samples and holds an initial temperature of the PA at commencement of a pulse. Thereafter, the S&H circuit generates a continuous measurement that corresponds to the temperature of the PA during the remainder of the pulse. A Gain Control signal is generated that is a function of the difference between the initial temperature and the operating temperature of the PA as the PA self-heats for the duration of the pulse. The Gain Control signal is applied to one or more adjustable or tunable circuits within a PA to offset the Gain droop of the PA.
    Type: Application
    Filed: November 23, 2024
    Publication date: March 13, 2025
    Inventors: Tero Tapio Ranta, Keith Bargroff, Christopher C. Murphy, Robert Mark Englekirk
  • Publication number: 20250072576
    Abstract: A comb attachment for mounting to a hair-care appliance configured to supply a heated airflow. The comb attachment includes a housing defining an inlet for receiving an airflow from the appliance when mounted thereto and an outlet fluidly connected to the inlet for discharging the airflow. The attachment further includes first and second longitudinally extending rows of outer protrusions mounted to the housing so as to extend across or alongside the outlet. The attachment also includes a longitudinally extending row of inner protrusions mounted to the housing so as to be interposed between the first and second rows of outer protrusions.
    Type: Application
    Filed: December 13, 2022
    Publication date: March 6, 2025
    Inventors: Rumyana Rumen DANCHEVA, Robert Mark Brett COULTON, Ayrton Lloyd Taylor PEEL, David Andrew TIBBETTS
  • Patent number: 12242293
    Abstract: An apparatus for generating a steady state positive voltage (PVS) signal and a steady state negative voltage (NVS) signal is presented. The apparatus includes a bias signal generation module for generating a steady state reference voltage signal (RVS) based on a varying supply voltage signal (VDD), the RVS having a voltage level less than the PVS. The apparatus further includes a positive signal generation module (PSGM) generating the PVS, the PSGM including a first capacitor, the PSGM employing the first capacitor to generate a portion of the PVS based on the RVS. The apparatus further includes a negative signal generation module (NSGM) generating the NVS, the NSGM including a second capacitor, the NSGM employing the second capacitor to generate a portion of the NVS based on the RVS.
    Type: Grant
    Filed: May 23, 2023
    Date of Patent: March 4, 2025
    Assignee: pSemi Corporation
    Inventors: Tae Youn Kim, Robert Mark Englekirk
  • Publication number: 20250070775
    Abstract: An RF switch to controllably withstand an applied RF voltage Vsw, or a method of fabricating such a switch, which includes a string of series-connected constituent FETs with a node of the string between each pair of adjacent FETs. The method includes controlling capacitances between different nodes of the string to effectively tune the string capacitively, which will reduce the variance in the RF switch voltage distributed across each constituent FET, thereby enhancing switch breakdown voltage. Capacitances are controlled, for example, by disposing capacitive features between nodes of the string, and/or by varying design parameters of different constituent FETs. For each node, a sum of products of each significant capacitor by a proportion of Vsw appearing across it may be controlled to approximately zero.
    Type: Application
    Filed: November 8, 2024
    Publication date: February 27, 2025
    Inventor: Robert Mark ENGLEKIRK
  • Publication number: 20250064190
    Abstract: A hair styling accessory comprises a body supporting a pair of jaws defining a clamping space between them for receiving a tress of hair. The accessory is configured so that at least one of the jaws is movable to releasably clamp the tress of hair between the jaws. The movable jaw is actuated by air pressure. At least one of the jaws is configured to deliver a jet of air from the body to the clamping space.
    Type: Application
    Filed: January 6, 2023
    Publication date: February 27, 2025
    Inventors: Thomas Christopher PURNELL, Martin Edward KEANE, Robert Mark Brett COULTON, Stephen Benjamin COURTNEY, Nathan Haruna Waters IMHASLY
  • Patent number: 12237835
    Abstract: Circuits and methods for determining the characteristics of swappable pins in a peripheral in a 1-Wire or similar single-conductor system, thereby allowing each one of two pins to be either an I/O pin (connected to an I/O line) or a CAP pin (connected to a storage capacitor). Embodiments preform the following functions: detecting the initial phase of device startup; determining which of pins A and B is coupled to an I/O line (and thus is the I/O pin), and which is coupled to the storage capacitor (and thus is the CAP pin); and generating a flag signal indicating that determination to other circuitry within the peripheral. Detection of pin characteristics is determined at device startup by latching the fastest rising signal on pins A and B, flagging that signal line as being the I/O line, and preventing further changes to the latch output until the next startup cycle.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: February 25, 2025
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Robert Mark Englekirk
  • Publication number: 20250062796
    Abstract: According to some aspects of the techniques disclosed herein, a UE adapted to transmit on different antenna subsets transmits an indication that the UE can transmit a number of distinct RS resources, where each of the RS resources comprises at least one RS port. The UE transmits capability information indicating that the UE is capable of transmitting simultaneously on multiple RS resources and/or receives first and second RS configurations, where the first RS configuration is a first list of SRS resources that at least correspond to RS resource indications used for PUSCH transmission, and the second RS configuration is a second list of RS resources that may be used for SRS transmission. The UE receives an indication of at least one RS resource and transmits a physical channel on antennas of the UE associated with the indicated RS resources.
    Type: Application
    Filed: November 1, 2024
    Publication date: February 20, 2025
    Inventors: Robert Mark Harrison, Sebastian Faxér, Niklas Wernersson, Andreas Nilsson
  • Publication number: 20250049198
    Abstract: An attachment for a haircare appliance, the attachment having an air inlet, a primary air outlet, first and second secondary air outlets, a curved surface, a main body defining the primary air outlet and the curved surface. The curved surface extends around the main body from a first end of the curved surface adjacent to and downstream of a first side of the primary air outlet to a second, opposite end of the curved surface adjacent to and downstream of a second, opposite side of the primary air outlet. The attachment comprises a guide defining the first and second secondary air outlets, the guide arranged to direct air from the primary air outlet to both the first and second secondary air outlets and across the respective first and second ends of the curved surface simultaneously.
    Type: Application
    Filed: November 16, 2022
    Publication date: February 13, 2025
    Inventors: Ayrton Lloyd Taylor PEEL, Robert Mark Brett COULTON, Stephen Benjamin COURTNEY