Patents by Inventor David R. Spencer

David R. Spencer 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: 10657481
    Abstract: Evaluation of output-producing-asset production may be performed at least by incorporating knowledge of operators of the output-producing asset into the generation of values of performance-based metrics for the output-producing asset. Since such knowledge may be only known by the respective operators, mechanisms, such as a graphical user interface (“GUI”), may be provided by which an operator inputs such knowledge and by which such knowledge is incorporated into the generation of values of performance-based metrics for an output-producing asset. A results screen may be generated to display values of performance-based metrics in a configuration that facilitates quick and simple understanding by a decision-maker or other user on how to improve return on the investment (“ROI”) in an output-producing asset.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: May 19, 2020
    Assignee: SPENCERMETRICS LLC
    Inventors: David R. Spencer, Catherine Fiasconaro, Vishal Sahay, Yutak Kwok
  • Publication number: 20190279137
    Abstract: Evaluation of output-producing-asset production may be performed at least by incorporating knowledge of operators of the output-producing asset into the generation of values of performance-based metrics for the output-producing asset. Since such knowledge may be only known by the respective operators, mechanisms, such as a graphical user interface (“GUI”), may be provided by which an operator inputs such knowledge and by which such knowledge is incorporated into the generation of values of performance-based metrics for an output-producing asset. A results screen may be generated to display values of performance-based metrics in a configuration that facilitates quick and simple understanding by a decision-maker or other user on how to improve return on the investment (“ROI”) in an output-producing asset.
    Type: Application
    Filed: May 23, 2019
    Publication date: September 12, 2019
    Inventors: David R. SPENCER, Catherine FIASCONARO, Vishal SAHAY, Yutak Kwok
  • Patent number: 10332057
    Abstract: Evaluation of output-producing-asset production may be performed at least by incorporating knowledge of operators of the output-producing asset into the generation of values of performance-based metrics for the output-producing asset. Since such knowledge may be only known by the respective operators, mechanisms, such as a graphical user interface (“GUI”), may be provided by which an operator inputs such knowledge and by which such knowledge is incorporated into the generation of values of performance-based metrics for an output-producing asset. A results screen may be generated to display values of performance-based metrics in a configuration that facilitates quick and simple understanding by a decision-maker or other user on how to improve return on the investment (“ROI”) in an output-producing asset.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: June 25, 2019
    Assignee: SPENCERMETRICS LLC
    Inventors: David R. Spencer, Catherine Fiasconaro, Vishal Sahay, Yutak Kwok
  • Publication number: 20150220869
    Abstract: Evaluation of output-producing-asset production may be performed at least by incorporating knowledge of operators of the output-producing asset into the generation of values of performance-based metrics for the output-producing asset. Since such knowledge may be only known by the respective operators, mechanisms, such as a graphical user interface (“GUI”), may be provided by which an operator inputs such knowledge and by which such knowledge is incorporated into the generation of values of performance-based metrics for an output-producing asset. A results screen may be generated to display values of performance-based metrics in a configuration that facilitates quick and simple understanding by a decision-maker or other user on how to improve return on the investment (“ROI”) in an output-producing asset.
    Type: Application
    Filed: April 14, 2015
    Publication date: August 6, 2015
    Inventors: David R. SPENCER, Catherine FIASCONARO, Vishal SAHAY, Yutak KWOK
  • Patent number: 4613877
    Abstract: A high resolution laser printer utilizes a first cylindrical lens to focus a laser beam in the sagittal direction prior to the facets of a rotating polygon. The light reflected from the polygon is focused in the horizontal direction at the photoconductor drum of an electrophotographic process by a scan lens assembly. Following the scan lens assembly, there is a second cylindrical lens which also focuses the laser beam in the horizontal direction at the photoconductor. The first and second cylindrical lenses are positioned to eliminate errors in the facets of the polygon. Scan velocity deviations resulting from the optical design are corrected by storing correction information in a memory and using this information to vary the rate at which the laser is modulated with data.
    Type: Grant
    Filed: November 26, 1984
    Date of Patent: September 23, 1986
    Assignee: Data Recording Systems, Inc.
    Inventors: David R. Spencer, Amnon Goldstein, David Grey, Theodore G. Balchunas, Arthur B. Kaplan
  • Patent number: 4578689
    Abstract: A dual mode laser printer utilizes a program-controlled microprocessor to switch between a high resolution, slow speed mode and a low resolution, high speed mode. In the printer a laser beam is modulated at a rate which is a first division of a system clock rate. This beam is caused to focus on a recording medium and, due to a rotating multi-faceted polygon, the beam sweeps across the medium. The medium is moved according to a second division of the system clock. By means of the microprocessor, the printer can be in either: (1) the high resolution mode in which the laser beam is modulated at a high rate due to the first divided signal and the medium moves at a slow rate due to the second divided signal, or (2) the low resolution mode in which the light beam is modulated at a lower rate due to the first divided signal and the medium moves at a faster rate due to the second divided signal.
    Type: Grant
    Filed: November 26, 1984
    Date of Patent: March 25, 1986
    Assignee: Data Recording Systems, Inc.
    Inventors: David R. Spencer, Amnon Goldstein
  • Patent number: 4290086
    Abstract: In an optical scanning system the position of a scanning beam is determined by a grating across which the beam is traced and then retraced to start again. The first grate is detected by first filtering the relatively low frequency input signals generated as the beam traces across the grating and the relatively high frequency signals generated as the beam retraces across the grating. The filter passes the low frequency signals, excludes the high frequency signals and accentuates the changes between high and low frequency signals which occur as the beam reaches either end of the grating. By applying the filtered signal to a gating arrangement, it is possible to eliminate one plurality of the signals generated as the beam falls upon the end of the grating. The remaining plurality of signals is further applied to a gate which detects the first grate signal to the exclusion of all others for providing an accurate indication of the start of scan of the optical system.
    Type: Grant
    Filed: June 18, 1980
    Date of Patent: September 15, 1981
    Assignee: Litton Systems, Inc.
    Inventors: David R. Spencer, Leonard Zuckerman
  • Patent number: 4161757
    Abstract: A facsimile system comprising transmitting means for scanning a document and encoding the scanned data into run lengths and subsequent Huffman codes and transmitting the scanned data; and receiver means for receiving the transmitted encoded data, decoding same into the original data format and recording such data, the receiving means including decoder means having a read only memory for receiving serial data from the transmitter means to partially address the read only memory with the incoming data bit and a memory buffer register for supplying the read only memory with a vectored address from the read only memory to complete the address of the read only memory, the vectored address having been supplied to the memory buffer register from the read only memory when the previous data bit was received, the vectored address comprising the decoded loop.
    Type: Grant
    Filed: June 1, 1977
    Date of Patent: July 17, 1979
    Assignee: Litton Systems, Inc.
    Inventors: David R. Spencer, Larry K. Baxter
  • Patent number: 4115461
    Abstract: 1,1,1-Trichloroethane is stabilized for use as a replacement for trichloroethylene in vapor degreasing applications by employing from about 3.6 to about 7.6 volume percent based on the total composition of the following components in 1,1,1-trichloroethane:Volume %1 to 3 1,4-dioxane1 to 3 t-amyl alcohol0.2 to 0.6 nitromethane or a mixture of nitromethane and nitroethane containing up to 75 volume percent nitroethane0.5 to 1 1,2-butylene oxide.
    Type: Grant
    Filed: September 21, 1977
    Date of Patent: September 19, 1978
    Assignee: The Dow Chemical Company
    Inventors: David R. Spencer, Wesley L. Archer
  • Patent number: 4114156
    Abstract: 2. A doppler shift rate detector system comprising: a first mixer; input ns for simultaneously applying a carrier signal and a doppler shifted sideband signal to said first mixer; first and second intermediate frequency amplifiers coupled to said first mixer; a mixer and an intermediate frequency amplifier stage coupled to said first and second intermediate frequency amplifiers; a mixer and oscillator stage coupled to said mixer and intermediate frequency amplifier stage; a frequency multiplier coupled to said mixer and oscillator stage; a second mixer coupled to said frequency multiplier; a delay line having an input coupled to said frequency multiplier and an output coupled to said second mixer, a narrow-band active filter coupled to said second mixer; an indicating means coupled to said filter; a low frequency switch coupled to said filter; a R. F. switch coupled to said first and second intermediate amplifiers; a sweep generator coupled to said R. F.
    Type: Grant
    Filed: February 28, 1962
    Date of Patent: September 12, 1978
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Robert R. Goldsborough, David R. Spencer, Samuel F. West
  • Patent number: 4110795
    Abstract: A method of graphic data redundancy reduction in an optical facsimile system wherein picture elements are optically represented by a grey coded number having N digits where N is at least 5 comprising evaluating at least the first N-2 bit planes to determine whether these bit planes should be processed in high or low resolution, and arbitrarily processing the remaining at least one bit plane at low resolution.
    Type: Grant
    Filed: December 20, 1976
    Date of Patent: August 29, 1978
    Assignee: Litton Systems, Inc.
    Inventor: David R. Spencer
  • Patent number: 3974230
    Abstract: 1,1,1-trichloroethane containing as the essential metal stabilizers (1) from 3.5 to 6 volume percent of (a) a mixture of 3-methyl-1-butyn-3-ol ##EQU1## and tertiary amyl alcohol ##EQU2## wherein said 3-methyl-1-butyn-3-ol is present in at least 1.75 volume percent of said mixture or (b) 3.5 volume percent 3-methyl-1-butyn-3-ol; (2) 0.5 to 2 volume percent of a nitroalkane selected from nitromethane or a mixture of nitromethane and nitroethane, said nitromethane or mixture of nitroalkanes being present in at least 1.0 volume percent when said mixture (1a) is 3.5 volume percent and 0.75 volume percent when said (1b) is 3.5 volume percent; and, (3) 0.5 to 1 volume percent of an alkylene oxide having 4 to 6 carbon atoms including cyclohexene oxide as the essential acid acceptor. A preferred composition consists of 2 volume percent each of 3-methyl-1-butyn-3-ol and tertiary amyl alcohol, 1.0 volume percent nitromethane and 0.75 volume percent 1,2-butylene oxide.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: August 10, 1976
    Assignee: The Dow Chemical Company
    Inventors: Wesley L. Archer, David R. Spencer