Patents by Inventor David L. Brown

David L. Brown 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: 9347890
    Abstract: A method of inspecting a sample at high speed includes directing and focusing radiation onto a sample, and receiving radiation from the sample and directing received radiation to an image sensor. Notably, the method includes driving the image sensor with predetermined signals. The predetermined signals minimize a settling time of an output signal of the image sensor. The predetermined signals are controlled by a phase accumulator, which is used to select look-up values. The driving can further include loading an initial phase value, selecting most significant bits of the phase accumulator, and converting the look-up values to an analog signal. In one embodiment, for each cycle of a phase clock, a phase increment can be added to the phase accumulator. The driving can be performed by a custom waveform generator.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: May 24, 2016
    Assignee: KLA-Tencor Corporation
    Inventors: David L. Brown, Yung-Ho Chuang, John Fielden
  • Publication number: 20160133123
    Abstract: A system and method provides efficient and highly reliable customer and asset tracking. A Personal Digital Key (PDK) is associated with and carried by a user or fixed to an asset. The PDK wirelessly communicates with a receiver/decoder circuit (RDC) that can be coupled to a variety of electronic devices. The RDC authenticates the PDK based on received data and stores information to track customers and provide improved service. The RDC can be coupled to or integrated with a variety of electronic devices. The operation of the electronic device is determined based on an identification code of the detected PDK and an identification code of the RDC. The electronic device, the PDK or both can be configured with a personalized user interface and execute specific functions based on stored state information associated with the PDK and RDC identification codes.
    Type: Application
    Filed: January 14, 2016
    Publication date: May 12, 2016
    Inventors: John J. Giobbi, Bryan Kelly, David L. Brown, Fred S. Hirt
  • Patent number: 9299738
    Abstract: The present invention includes an interposer disposed on a surface of a substrate, a light sensing array sensor disposed on the interposer, the light sensing array sensor being back-thinned and configured for back illumination, the light sensing array sensor including columns of pixels, one or more amplification circuitry elements configured to amplify an output of the light sensing array sensor, the amplification circuits being operatively connected to the interposer, one or more analog-to-digital conversion circuitry elements configured to convert an output of the light sensing array sensor to a digital signal, the ADC circuitry elements being operatively connected to the interposer, one or more driver circuitry elements configured to drive a clock or control signal of the array sensor, the interposer configured to electrically couple at least two of the light sensing array sensor, the amplification circuits, the conversion circuits, the driver circuits, or one or more additional circuits.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: March 29, 2016
    Assignee: KLA-Tencor Corporation
    Inventors: David L. Brown, Guowu Zheng, Yung-Ho Alex Chuang, Venkatraman Iyer
  • Publication number: 20160064184
    Abstract: A scanning electron microscope incorporates a multi-pixel solid-state electron detector. The multi-pixel solid-state detector may detect back-scattered and/or secondary electrons. The multi-pixel solid-state detector may incorporate analog-to-digital converters and other circuits. The multi-pixel solid state detector may be capable of approximately determining the energy of incident electrons and/or may contain circuits for processing or analyzing the electron signals. The multi-pixel solid state detector is suitable for high-speed operation such as at a speed of about 100 MHz or higher. The scanning electron microscope may be used for reviewing, inspecting or measuring a sample such an unpatterned semiconductor wafer, a patterned semiconductor wafer, a reticle or a photomask. A method of reviewing or inspecting a sample is also described.
    Type: Application
    Filed: August 25, 2015
    Publication date: March 3, 2016
    Inventors: David L. Brown, Yung-Ho Alex Chuang, John Fielden, Marcel Trimpl, Jingjing Zhang, Devis Contarato, Venkatraman Iyer
  • Patent number: 9269221
    Abstract: A system and method provides efficient and highly reliable customer and asset tracking. A Personal Digital Key (PDK) is associated with and carried by a user or fixed to an asset. The PDK wirelessly communicates with a receiver/decoder circuit (RDC) that can be coupled to a variety of electronic devices. The RDC authenticates the PDK based on received data and stores information to track customers and provide improved service. The RDC can be coupled to or integrated with a variety of electronic devices. The operation of the electronic device is determined based on an identification code of the detected PDK and an identification code of the RDC. The electronic device, the PDK or both can be configured with a personalized user interface and execute specific functions based on stored state information associated with the PDK and RDC identification codes.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: February 23, 2016
    Inventors: John J. Gobbi, Bryan Kelly, David L. Brown, Fred S. Hirt
  • Patent number: 9265043
    Abstract: Wireless client devices within a wireless network exchange data with other wireless devices during particular time slots determined by the network. More particularly, the system generates and wirelessly broadcasts synchronization information to the client devices, where the synchronization information contains individual masks to be applied to bit fields of individual client devices, where said time slots are determined in accordance with the masked bit fields. In such a manner, client devices can be coordinated to communicate with the system in a dynamic real-time tiered manner.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: February 16, 2016
    Assignee: Proxense, LLC
    Inventors: David L. Brown, Fred S. Hirt
  • Patent number: 9251326
    Abstract: A system and method provide efficient, secure, and highly reliable authentication for transaction processing and/or access control applications. A personal digital key (PDK) is programmed using a trusted programming device to initialize and/or register the PDK for use. In one embodiment, the initialization and registration processes are administered by a specialized trusted Notary to ensure the processes follow defined security procedures. In a biometric initialization, the programming device acquires a biometric input from a user and writes the biometric data to a tamperproof memory in the PDK. In registration, the Programmer communicates to one or more remote registries to create or update entries associated with the user PDK. Once initialized and registered, the PDK can be used for various levels of secure authentication processes.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: February 2, 2016
    Assignee: Proxense, LLC
    Inventors: John J. Giobbi, David L. Brown, Fred S. Hirt
  • Patent number: 9235700
    Abstract: A hybrid device includes a personal digital key (PDK) and a receiver-decoder circuit (RDC). The PDK and RDC of the hybrid device are coupled for communication with each other. In one embodiment, the hybrid device also provides a physical interconnect for connecting to other devices to send and receive control signals and data, and receive power. The hybrid device operates in one of several modes including, PDK only, RDC only, or PDK and RDC. This allows a variety of system configurations for mixed operation including: PDK/RDC, RDC/RDC or PDK/PDK. The present invention also includes a number of system configurations for use of the hybrid device including: use of the hybrid device in a cell phone; simultaneous use of the PDK and the RDC functionality of hybrid device; use of multiple links of hybrid device to generate an authorization signal, use of multiple PDK links to the hybrid device to generate an authorization signal; and use of the hybrid device for authorization inheritance.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: January 12, 2016
    Assignee: Proxense, LLC
    Inventor: David L. Brown
  • Patent number: 9113464
    Abstract: In a wireless network, a cell's transmission power and reception sensitivity may be dynamically adjusted along with those of a client device detected in the cell. Thus, in other words, when a client device is in proximity of a particular reader device, the transmission power levels and reception sensitivities of the reader device and the client device may be adjusted in an effort to require the client device to be “drawn in” towards the reader device to conduct a data transaction between the reader device and the client device.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: August 18, 2015
    Assignee: Proxense, LLC
    Inventors: Fred S. Hirt, David L. Brown
  • Publication number: 20150200216
    Abstract: An image sensor for short-wavelength light includes a semiconductor membrane, circuit elements formed on one surface of the semiconductor membrane, and a pure boron layer on the other surface of the semiconductor membrane. An anti-reflection or protective layer is formed on top of the pure boron layer. This image sensor has high efficiency and good stability even under continuous use at high flux for multiple years. The image sensor may be fabricated using CCD (charge coupled device) or CMOS (complementary metal oxide semiconductor) technology. The image sensor may be a two-dimensional area sensor, or a one-dimensional array sensor.
    Type: Application
    Filed: January 7, 2015
    Publication date: July 16, 2015
    Inventors: Masaharu Muramatsu, Hisanori Suzuki, Yasuhito Yoneta, Shinya Otsuka, Jehn-Huar Chem, David L. Brown, Yung-Ho Alex Chuang, John Fielden, Venkatraman Iyer
  • Patent number: 9077862
    Abstract: An inspection system for inspecting a surface of a wafer/mask/reticle can include a modular array. The modular array can include a plurality of time delay integration (TDI) sensor modules, each TDI sensor module having a TDI sensor and a plurality of localized circuits for driving and processing the TDI sensor. At least one of the localized circuits can control a clock associated with the TDI sensor. At least one light pipe can be used to distribute a source illumination to the plurality of TDI sensor modules. The plurality of TDI sensor modules can be positioned capture a same inspection region or different inspection regions. The plurality of TDI sensor modules can be identical or provide for different integration stages. Spacing of the modules can be arranged to provide 100% coverage of the inspection region in one pass or for fractional coverage requiring two or more passes for complete coverage.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: July 7, 2015
    Assignee: KLA-Tencor Corporation
    Inventors: David L. Brown, Yung-Ho Chuang
  • Publication number: 20150177159
    Abstract: A method of inspecting a sample at high speed includes directing and focusing radiation onto a sample, and receiving radiation from the sample and directing received radiation to an image sensor. Notably, the method includes driving the image sensor with predetermined signals. The predetermined signals minimize a settling time of an output signal of the image sensor. The predetermined signals are controlled by a phase accumulator, which is used to select look-up values. The driving can further include loading an initial phase value, selecting most significant bits of the phase accumulator, and converting the look-up values to an analog signal. In one embodiment, for each cycle of a phase clock, a phase increment can be added to the phase accumulator. The driving can be performed by a custom waveform generator.
    Type: Application
    Filed: May 8, 2014
    Publication date: June 25, 2015
    Applicant: KLA-Tencor Corporation
    Inventors: David L. Brown, Yung-Ho Chuang, John Fielden
  • Patent number: 9049188
    Abstract: A hybrid device includes a personal digital key (PDK) and a receiver-decoder circuit (RDC). The PDK and RDC of the hybrid device are coupled for communication with each other. In one embodiment, the hybrid device also provides a physical interconnect for connecting to other devices to send and receive control signals and data, and receive power. The hybrid device operates in one of several modes including, PDK only, RDC only, or PDK and RDC. This allows a variety of system configurations for mixed operation including: PDK/RDC, RDC/RDC or PDK/PDK. The present invention also includes a number of system configurations for use of the hybrid device including: use of the hybrid device in a cell phone; simultaneous use of the PDK and the RDC functionality of hybrid device; use of multiple links of hybrid device to generate an authorization signal, use of multiple PDK links to the hybrid device to generate an authorization signal; and use of the hybrid device for authorization inheritance.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: June 2, 2015
    Assignee: Proxense, LLC
    Inventor: David L. Brown
  • Patent number: 9037140
    Abstract: A system and method for wireless synchronization on a network are disclosed. In one embodiment, the wireless device includes a wireless transceiver and processing circuitry. The wireless transceiver wirelessly receives synchronization information including a superframe from a first wireless, reader device, and wirelessly transmits the synchronization information to a second wireless, reader device and a portable wireless device, and to wirelessly detect a presence of a portable wireless device. The processing circuitry communicates synchronization information to the second wireless, reader device and portable wireless device. The superframe is used to synchronize a wireless data exchange between the third wireless, reader device and the portable wireless device.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: May 19, 2015
    Assignee: Proxense, LLC
    Inventor: David L. Brown
  • Patent number: 8991895
    Abstract: A trim panel system includes a vehicle trim panel movably coupled to a vehicle body. The vehicle body defines a vehicle body opening. The vehicle trim panel is configured to move between an open position and a closed position wherein the vehicle trim panel covers the vehicle body opening. The trim panel system further includes an arm movably coupled to the vehicle body and a cable coupled between the vehicle trim panel and the arm. As such, the vehicle trim panel is configured to move from the closed position toward the open position in conjunction with a corresponding movement of the arm relative to the vehicle body and through the vehicle body opening.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 31, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: James K. Quandt, William J. Majewski, David L. Brown
  • Publication number: 20150026480
    Abstract: A system and method provide efficient, secure, and highly reliable authentication for transaction processing and/or access control applications. A personal digital key (PDK) is programmed using a trusted programming device to initialize and/or register the PDK for use. In one embodiment, the initialization and registration processes are administered by a specialized trusted Notary to ensure the processes follow defined security procedures. In a biometric initialization, the programming device acquires a biometric input from a user and writes the biometric data to a tamperproof memory in the PDK. In registration, the Programmer communicates to one or more remote registries to create or update entries associated with the user PDK. Once initialized and registered, the PDK can be used for various levels of secure authentication processes.
    Type: Application
    Filed: July 31, 2014
    Publication date: January 22, 2015
    Applicant: PROXENSE, LLC
    Inventors: John J. Giobbi, David L. Brown, Fred S. Hirt
  • Publication number: 20140291493
    Abstract: A photomultiplier tube includes a semiconductor photocathode and a photodiode. Notably, the photodiode includes a p-doped semiconductor layer, an n-doped semiconductor layer formed on a first surface of the p-doped semiconductor layer to form a diode, and a pure boron layer formed on a second surface of the p-doped semiconductor layer. A gap between the semiconductor photocathode and the photodiode may be less than about 1 mm or less than about 500 ?m. The semiconductor photocathode may include gallium nitride, e.g. one or more p-doped gallium nitride layers. In other embodiments, the semiconductor photocathode may include silicon. This semiconductor photocathode can further include a pure boron coating on at least one surface.
    Type: Application
    Filed: March 5, 2014
    Publication date: October 2, 2014
    Applicant: KLA-Tencor Corporation
    Inventors: Yung-Ho Chuang, David L. Brown, John Fielden
  • Publication number: 20140259934
    Abstract: A trim panel system includes a vehicle trim panel movably coupled to a vehicle body. The vehicle body defines a vehicle body opening. The vehicle trim panel is configured to move between an open position and a closed position wherein the vehicle trim panel covers the vehicle body opening. The trim panel system further includes an arm movably coupled to the vehicle body and a cable coupled between the vehicle trim panel and the arm. As such, the vehicle trim panel is configured to move from the closed position toward the open position in conjunction with a corresponding movement of the arm relative to the vehicle body and through the vehicle body opening.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: James K. Quandt, William J. Majewski, David L. Brown
  • Patent number: 8838993
    Abstract: A system and method provide efficient, secure, and highly reliable authentication for transaction processing and/or access control applications. A personal digital key (PDK) is programmed using a trusted programming device to initialize and/or register the PDK for use. In one embodiment, the initialization and registration processes are administered by a specialized trusted Notary to ensure the processes follow defined security procedures. In a biometric initialization, the programming device acquires a biometric input from a user and writes the biometric data to a tamperproof memory in the PDK. In registration, the Programmer communicates to one or more remote registries to create or update entries associated with the user PDK. Once initialized and registered, the PDK can be used for various levels of secure authentication processes.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: September 16, 2014
    Assignee: Proxense, LLC
    Inventors: John J. Giobbi, David L. Brown, Fred S. Hirt
  • Publication number: 20140240562
    Abstract: A module for high speed image processing includes an image sensor for generating a plurality of analog outputs representing an image and a plurality of HDDs for concurrently processing the plurality of analog outputs. Each HDD is an integrated circuit configured to process in parallel a predetermined set of the analog outputs. Each channel of the HDD can include an AFE for conditioning a signal representing one sensor analog output, an ADC for converting a conditioned signal into a digital signal, and a data formatting block for calibrations and formatting the digital signal for transport to an off-chip device. The HDDs and drive electronics are combined with the image sensor into one package to optimize signal integrity and high dynamic range, and to achieve high data rates through use of synchronized HDD channels. Combining multiple modules results in a highly scalable imaging subsystem optimized for inspection and metrology applications.
    Type: Application
    Filed: May 7, 2014
    Publication date: August 28, 2014
    Applicant: KLA-Tencor Corporation
    Inventors: David L. Brown, Mansour Kermat, Lance Glasser, Henrik Nielsen, Guowu Zheng, Kurt Lehman, Kenneth F. Hatch, Yung-Ho Chuang, Venkatraman Iyer