Patents by Inventor Thomas Vogelsang

Thomas Vogelsang 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: 20200036926
    Abstract: Signals representative of total photocharge integrated within respective image-sensor pixels are read out of the pixels after a first exposure interval that constitutes a first fraction of a frame interval. Signals in excess of a threshold level are read out of the pixels after an ensuing second exposure interval that constitutes a second fraction of the frame interval, leaving residual photocharge within the pixels. After a third exposure interval that constitutes a third fraction of the frame interval, signals representative of a combination of at least the residual photocharge and photocharge integrated within the pixels during the third exposure interval are read out of the pixels.
    Type: Application
    Filed: July 3, 2019
    Publication date: January 30, 2020
    Inventors: Jay Endsley, Thomas Vogelsang, Craig M. Smith, Michael Guidash, Alexander C. Schneider
  • Publication number: 20200007804
    Abstract: A control pulse is generated a first control signal line coupled to a transfer gate of a pixel to enable photocharge accumulated within a photosensitive element of the pixel to be transferred to a floating diffusion node, the first control signal line having a capacitive coupling to the floating diffusion node. A feedthrough compensation pulse is generated on a second signal line of the pixel array that also has a capacitive coupling to the floating diffusion node. The feedthrough compensation pulse is generated with a pulse polarity opposite the pulse polarity of the control pulse and is timed to coincide with the control pulse such that capacitive feedthrough of the control pulse to the floating diffusion node is reduced.
    Type: Application
    Filed: July 3, 2019
    Publication date: January 2, 2020
    Inventors: Michael Guidash, Jay Endsley, John Ladd, Thomas Vogelsang, Craig M. Smith
  • Patent number: 10497457
    Abstract: A method of operation in an integrated circuit (IC) memory device. The method includes refreshing a first group of storage rows in the IC memory device at a first refresh rate. A retention time for each of the rows is tested. The testing for a given row under test includes refreshing at a second refresh rate that is slower than the first refresh rate. The testing is interruptible based on an access request for data stored in the given row under test.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: December 3, 2019
    Assignee: Rambus Inc.
    Inventors: Ely Tsern, Frederick A Ware, Suresh Rajan, Thomas Vogelsang
  • Publication number: 20190294378
    Abstract: An memory component includes a memory bank and a command interface to receive a read-modify-write command, having an associated read address indicating a location in the memory bank and to either access read data from the location in the memory bank indicated by the read address after an adjustable delay period transpires from a time at which the read-modify-write command was received or to overlap multiple read-modify-write commands. The memory component further includes a data interface to receive write data associated with the read-modify-write command and an error correction circuit to merge the received write data with the read data to form a merged data and write the merged data to the location in the memory bank indicated by the read address.
    Type: Application
    Filed: April 1, 2019
    Publication date: September 26, 2019
    Inventors: Frederick A. Ware, Thomas Vogelsang
  • Publication number: 20190295604
    Abstract: A memory device includes a first dynamic random access memory (DRAM) integrated circuit (IC) chip including first memory core circuitry, and first input/output (I/O) circuitry. A second DRAM IC chip is stacked vertically with the first DRAM IC chip. The second DRAM IC chip includes second memory core circuitry, and second I/O circuitry. Solely one of the first DRAM IC chip or the second DRAM IC chip includes a conductive path that electrically couples at least one of the first memory core circuitry or the second memory core circuitry to solely one of the first I/O circuitry or the second I/O circuitry, respectively.
    Type: Application
    Filed: January 24, 2019
    Publication date: September 26, 2019
    Inventor: Thomas Vogelsang
  • Publication number: 20190259464
    Abstract: Embodiments generally relate to integrated circuit devices having through silicon vias (TSVs). In one embodiment, an integrated circuit (IC) device includes a field of TSVs and an address decoder that selectably couples at least one of the TSVs to at least one of a test input and a test evaluation circuit. In another embodiment, a method includes selecting one or more TSVs from a field of TSVs in at least one IC device, and coupling each selected TSV to at least one of a test input and a test evaluation circuit.
    Type: Application
    Filed: April 8, 2019
    Publication date: August 22, 2019
    Inventors: Thomas Vogelsang, William Ng, Fredrick A. Ware
  • Patent number: 10388337
    Abstract: Row activation operations within a memory component are carried out with respect to subrows instead of complete storage rows to reduce power consumption. Further, instead of activating subrows in response to row commands, subrow activation operations are deferred until receipt of column commands that specify the column operation to be performed and the subrow to be activated.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: August 20, 2019
    Assignee: Rambus Inc.
    Inventors: James E. Harris, Thomas Vogelsang, Frederick A. Ware, Ian P. Shaeffer
  • Patent number: 10378967
    Abstract: During operation of an IC component within a first range of temperatures, a first bias voltage is applied to a first substrate region disposed adjacent a first plurality of transistors to effect a first threshold voltage for the first plurality of transistors. During operation of the IC component within a second range of temperatures that is distinct from and lower than the first range of temperatures, a second bias voltage is applied to the first substrate region to effect a second threshold voltage for the first plurality of transistors that is at least as low as the first threshold voltage.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: August 13, 2019
    Assignee: Rambus Inc.
    Inventors: Thomas Vogelsang, Frederick A. Ware
  • Publication number: 20190237130
    Abstract: A memory stack comprises at least two memory components. The memory components have a first data link interface and are to transmit signals on a data link coupled to the first data link interface at a first voltage level. A buffer component has a second data link interface coupled to the data link. The buffer component is to receive signals on the second data link interface at the first voltage level. A level shifting latch produces a second voltage level in response to receiving the signals at the second data link interface, where the second voltage level is higher than the first voltage level.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 1, 2019
    Inventors: Frederick A. Ware, John Eric Linstadt, Thomas Vogelsang
  • Patent number: 10362256
    Abstract: Signals representative of total photocharge integrated within respective image-sensor pixels are read out of the pixels after a first exposure interval that constitutes a first fraction of a frame interval. Signals in excess of a threshold level are read out of the pixels after an ensuing second exposure interval that constitutes a second fraction of the frame interval, leaving residual photocharge within the pixels. After a third exposure interval that constitutes a third fraction of the frame interval, signals representative of a combination of at least the residual photocharge and photocharge integrated within the pixels during the third exposure interval are read out of the pixels.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: July 23, 2019
    Assignee: Rambus Inc.
    Inventors: Jay Endsley, Thomas Vogelsang, Craig M. Smith, Michael Guidash, Alexander C. Schneider
  • Patent number: 10356350
    Abstract: Photocharge is accumulated within an image sensor pixel array during a first exposure interval. At conclusion of the first exposure interval, accumulated photocharge is discarded from a first subset of the pixels to emulate absence of incident light with respect to those pixels. After discarding accumulated photocharge from the first subset of the pixels, first and second readout signals are generated, the first readout signals corresponding to respective pixels not included in the first subset and indicative of photocharge accumulated therein, and the second readout signals corresponding to respective pixels included in the first subset.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: July 16, 2019
    Assignee: Rambus Inc.
    Inventors: Michael Guidash, Jay Endsley, John Ladd, Thomas Vogelsang, Craig M. Smith
  • Publication number: 20190166321
    Abstract: A sequence of control voltage levels are applied to a control signal line capacitively coupled to a floating diffusion node of a pixel to sequentially adjust a voltage level of the floating diffusion node. A pixel output signal representative of the voltage level of the floating diffusion node is compared with a reference voltage to identify a first control voltage level of the sequence of control voltage levels for which the voltage level of the floating diffusion node exceeds the reference voltage.
    Type: Application
    Filed: November 20, 2018
    Publication date: May 30, 2019
    Inventors: John Ladd, Michael Guidash, Craig M. Smith, Thomas Vogelsang, Jay Endsley, Michael T. Ching, James E. Harris
  • Publication number: 20190164588
    Abstract: A memory component includes a first memory bank. The first memory bank has a plurality of sub-arrays having sub-rows of memory elements. The memory component includes a write driver, coupled to the first memory bank, to perform a write operation of an entire sub-row of a sub-array. To perform the write operation, the write driver is to load a burst of write data to the memory bank. The memory bank may then activate a plurality of sense amplifiers associated with a plurality of memory elements of the entire sub-row to load the burst of write data to the plurality of sense amplifiers.
    Type: Application
    Filed: May 3, 2017
    Publication date: May 30, 2019
    Inventors: Frederick A. Ware, John Eric Linstadt, Brent Steven Haukness, Kenneth L. Wright, Thomas Vogelsang
  • Publication number: 20190156886
    Abstract: Provided are a device comprising a bit cell tile including at least two memory cells, each of the at least two memory cells including a resistive memory element, and methods of operating an array of the memory cells, each memory cell including a resistive memory element electrically coupled in series to a corresponding first transistor and to a corresponding second transistor, the first transistor including a first gate coupled to a corresponding one of a plurality of first word lines and the second transistor including a second gate coupled to a corresponding one of a plurality of second word lines, each memory cell coupled between a corresponding one of a plurality of bit lines and a corresponding one of a plurality of source lines. The methods may include applying voltages to the first word line, second word line, source line, and bit line of a memory cell selected for an operation, and resetting the resistive memory element of the memory cell in response to setting the selected bit line to ground.
    Type: Application
    Filed: December 18, 2018
    Publication date: May 23, 2019
    Inventors: Deepak Chandra SEKAR, Wayne Frederick ELLIS, Brent Steven HAUKNESS, Gary Bela BRONNER, Thomas VOGELSANG
  • Patent number: 10277843
    Abstract: In a pixel array within an integrated-circuit image sensor, each of a plurality of pixels is evaluated to determine whether charge integrated within the pixel in response to incident light exceeds a first threshold. N-bit digital samples corresponding to the charge integrated within at least a subset of the plurality of pixels are generated, and then applied to a lookup table to retrieve respective M-bit digital values (M being less than N), wherein a stepwise range of charge integration levels represented by possible states of the M-bit digital values extends upward from a starting charge integration level that is determined based on the first threshold.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: April 30, 2019
    Assignee: Rambus Inc.
    Inventors: Craig M. Smith, Michael Guidash, Jay Endsley, Thomas Vogelsang, James E. Harris
  • Patent number: 10274652
    Abstract: An imaging device uses a grating to produce an interference pattern for capture by a photodetector array. Digital photographs and other image information can then be extracted from the pattern. An integrated processor locally supports this extraction by upsampling the captured interference pattern and deconvolving the upsampled pattern with an image-calculation parameter set that represents the grating at a resolution greater than that provided by the photodetector array. Deconvolving the upsampled pattern with a high-resolution parameter increases the resolution of extracted image information.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: April 30, 2019
    Assignee: Rambus Inc.
    Inventors: Jay Endsley, Thomas Vogelsang
  • Patent number: 10269411
    Abstract: Embodiments generally relate to a command protocol and/or related circuits and apparatus for communication between a memory device and a memory controller. In one embodiment, the memory controller includes an interface for transmitting commands to the memory device, wherein the memory device includes bitline multiplexers, and accessing of memory cells within the memory device is carried out by a command protocol sequence that includes a wordline selection, followed by bitline selections by the bitline multiplexers. In another embodiment, a memory device includes bitline multiplexers and further includes an interface for receiving a command protocol sequence that specifies a wordline selection followed by bitline selections by the bitline multiplexers.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: April 23, 2019
    Assignee: Rambus Inc.
    Inventors: Thomas Vogelsang, Brent Haukness, Stephen Charles Bowyer
  • Patent number: 10262750
    Abstract: Embodiments generally relate to integrated circuit devices having through silicon vias (TSVs). In one embodiment, an integrated circuit (IC) device includes a field of TSVs and an address decoder that selectably couples at least one of the TSVs to at least one of a test input and a test evaluation circuit. In another embodiment, a method includes selecting one or more TSVs from a field of TSVs in at least one IC device, and coupling each selected TSV to at least one of a test input and a test evaluation circuit.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: April 16, 2019
    Assignee: RAMBUS INC.
    Inventors: Thomas Vogelsang, William Ng, Frederick A. Ware
  • Patent number: 10264195
    Abstract: An image sensor generates first digital samples and second digital samples during respective first and second sampling intervals, the first digital samples including at least one digital sample of each pixel of a first plurality of pixels, and the second digital samples including at least one digital sample of each pixel of a second plurality of pixels. A sum of the first digital samples is accumulated within a first counter as the first sampling interval transpires, and a sum of the second digital samples is accumulated within the first counter as the second sampling interval transpires.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: April 16, 2019
    Assignee: Rambus Inc.
    Inventor: Thomas Vogelsang
  • Patent number: 10261584
    Abstract: A user interface includes both a touchscreen for tactile input and one or more lensless optical sensors for sensing additional, remote gestures. Users can interact with the user interface in a volume of space near the display, and are thus not constrained to the relatively small area of the touchscreen. Remote hand or face gestures can be used to turn on or otherwise alter the tactile user interface. Shared user interfaces can operate without touch, and thus avoid cross-contamination of e.g. viruses and bacteria.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: April 16, 2019
    Assignee: Rambus Inc.
    Inventors: Patrick R. Gill, David G. Stork, Thomas Vogelsang