Patents by Inventor William L. Chapman
William L. Chapman 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).
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Patent number: 11912545Abstract: A wireless hoist system including a first hoist device having a first motor and a first wireless transceiver and a second hoist device having a second motor and a second wireless transceiver. The wireless hoist system includes a controller in wireless communication with the first wireless transceiver and the second wireless. The controller is configured to receive a user input and determine a first operation parameter and a second operation parameter based on the user input. The controller is also configured to provide, wirelessly, a first control signal indicative of the first operation parameter to the first hoist device and provide, wirelessly, a second control signal indicative of the second operation parameter to the second hoist device. The first hoist device operates based on the first control signal and the second hoist device operates based on the second control signal.Type: GrantFiled: June 26, 2020Date of Patent: February 27, 2024Assignee: Milwaukee Electric Tool CorporationInventors: Matthew Post, Gareth Mueckl, Matthew N. Thurin, Joshua D. Widder, Timothy J. Bartlett, Patrick D. Gallagher, Jarrod P. Kotes, Karly M. Schober, Kenneth W. Wolf, Terry L. Timmons, Mallory L. Marksteiner, Jonathan L. Lambert, Ryan A. Spiering, Jeremy R. Ebner, Benjamin A. Smith, James Wekwert, Brandon L. Yahr, Troy C. Thorson, Connor P. Sprague, John E. Koller, Evan M. Glanzer, John S. Scott, William F. Chapman, III, Timothy R. Obermann
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Patent number: 10436574Abstract: Technology for facilitating position determination is disclosed. A satellite with a known location can activate a light source on the satellite operable to emit light. The satellite can emit the light for a defined period of time to enable a receiver to detect the light and determine a geographical location using the light emitted from the satellite.Type: GrantFiled: April 28, 2015Date of Patent: October 8, 2019Assignee: Raytheon CompanyInventors: Chris E. Geswender, David G. Garrett, William L. Chapman, James N. Head
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Publication number: 20160320174Abstract: Technology for facilitating position determination is disclosed. A satellite with a known location can activate a light source on the satellite operable to emit light. The satellite can emit the light for a defined period of time to enable a receiver to detect the light and determine a geographical location using the light emitted from the satellite.Type: ApplicationFiled: April 28, 2015Publication date: November 3, 2016Inventors: Chris E. Geswender, David G. Garrett, William L. Chapman, James N. Head
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Patent number: 9188670Abstract: An interferometric inverse synthetic aperture radar (IFISAR) is described that can provide a height measurement of moving objects on a surface using a small radar aperture. The IFISAR includes a two-dimensional antenna array including a plurality of elements that are configured to receive a plurality of return signals carrying energy of a transmitted RF signal that are reflected from the target. A first antenna group and a second antenna group of the plurality of elements respectively located at opposite ends of the array are enabled, and a third antenna group of the plurality of elements located between the first antenna group and the second antenna group are disabled. A processor of the IFISAR is operatively coupled to the plurality of elements and configured to determine height characteristics of the target according to interferometric processing of the return signals received by the first antenna group and the second antenna group.Type: GrantFiled: October 17, 2012Date of Patent: November 17, 2015Assignee: RAYTHEON COMPANYInventors: Donald P. Bruyere, Jeffrey Wadsworth, William L. Chapman
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Patent number: 8855220Abstract: A computer-implemented method of communicating message data in a frame of data includes transmitting the frame of data across a communication channel. The frame of data includes the message data, a first 8-bit digital control word, and a second 8-bit digital control word. Each control word has a unique bit pattern and is associated with a different time interval that individually indicates where or when the message data begins or began in the frame of data relative to the time interval's associated control word. At least one of the control words and other data are received. At least some of the other data are identified as the message data based upon receipt of at least one of the control words. Only one of the control words needs to be received to identify the message data from the other data.Type: GrantFiled: September 23, 2011Date of Patent: October 7, 2014Assignee: Intellectual Ventures Fund 83 LLCInventors: William L. Chapman, Shawn E. O'Hara
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Patent number: 8543717Abstract: A method and system to improve the retention of synchronization between the transmitter and receiver of image data across a communication channel. If the control character designating the end of the line of data is corrupted, the receiving system will not recognize that the line of data has ended and will continue as if data is still being received. The corruption of a single bit in the control character will cause the receiver to misinterpret the end of line control word. Since the receiving logic does not realize the transmitter is no longer sending data, erroneous data will be stored in the storage elements. By using an alternate control character as an additional end of line indicator, the receiver will terminate the line of data and will wait for the next start of line control character from the transmitter. Synchronization between the transmitter and receiver across the communication channel is thus maintained.Type: GrantFiled: December 15, 2004Date of Patent: September 24, 2013Assignee: Eastman Kodak CompanyInventors: William L. Chapman, Shawn E. O'Hara
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Publication number: 20120017007Abstract: A computer-implemented method of communicating message data in a frame of data includes transmitting the frame of data across a communication channel. The frame of data includes the message data, a first 8-bit digital control word, and a second 8-bit digital control word. Each control word has a unique bit pattern and is associated with a different time interval that individually indicates where or when the message data begins or began in the frame of data relative to the time interval's associated control word. At least one of the control words and other data are received. At least some of the other data are identified as the message data based upon receipt of at least one of the control words. Only one of the control words needs to be received to identify the message data from the other data.Type: ApplicationFiled: September 23, 2011Publication date: January 19, 2012Inventors: William L. Chapman, Shawn E. O'Hara
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Patent number: 8085836Abstract: A method and apparatus for the transmission of multiple control characters of the same type to a receiver to improve the retention of transmitter to receiver synchronization in a noisy environment having receiver code that is less complex and does not require an increase in the bandwidth of the system since the control codes are already utilized to initiate other functions. Detection of any of the control characters of the same type by the receiver allows the receiver to maintain proper synchronization. The receiver will detect these control signals and anticipate the occurrence of an event within a predetermined time period.Type: GrantFiled: June 6, 2006Date of Patent: December 27, 2011Assignee: Eastman Kodak CompanyInventors: William L. Chapman, Shawn E. O'Hara
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Patent number: 7082479Abstract: A method and apparatus for the transmission of multiple control characters of the same type to a receiver to improve the retention of transmitter to receiver synchronization in a noisy environment having receiver code that is less complex and does not require an increase in the bandwidth of the system since the control codes are already utilized to initiate other functions. Detection of any of the control characters of the same type by the receiver allows the receiver to maintain proper synchronization. The receiver will detect these control signals and anticipate the occurrence of an event within a predetermined time period.Type: GrantFiled: June 19, 2002Date of Patent: July 25, 2006Assignee: Eastman Kodak CompanyInventors: William L. Chapman, Shawn E. O'Hara
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Patent number: 7016070Abstract: A product and process for an LED printhead used in electrophotographic printing that generates an exposure clock on the printhead for the LEDs. The present invention provides a high-speed interface that transmits print data that has been modified, or corrected, using the corresponding unique printhead brightness data as the base reference source data to the printhead boards. The corrected print data is then applied to the LED drivers that expose each LED simultaneously and uniquely. A non-linear clock is applied to the LED drivers as the reference clock to create the unique LED on time circuit. An Exposure RAM stores the data as parallel 8-bit data. A LATCH code received at an ASIC converts the Exposure RAM data into a serial bit stream. The preferred embodiment employs a 60 MHz clock, however, it should be readily apparent that numerous other clocking speeds can be employed.Type: GrantFiled: February 27, 2001Date of Patent: March 21, 2006Assignee: Eastman Kodak CompanyInventors: Hieu T. Pham, Yee S. Ng, Shawn E. O'Hara, William L. Chapman
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Patent number: 6819351Abstract: Increasing the linearity of elements within a printhead by applying a coarse electronic adjustment to rearrange the electronic printing of data into the proper pixel line and then applying a fine electronic adjustment to reduce the bow error to fraction of a pixel line. Delays of exposure control signals are used by the fine electronic adjustment to correct linearity by a fraction of a pixel line. The delays can be repeated to multiply the number of delays available and increase the linearity resolution. The delays can also be averaged between odd and even rows of elements to increase apparent resolution.Type: GrantFiled: May 30, 2001Date of Patent: November 16, 2004Assignee: NexPress Solutions LLCInventors: Shawn E. O'Hara, William L. Chapman, Yee S. Ng
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Publication number: 20040024907Abstract: A method and apparatus for the transmission of multiple control characters of the same type to a receiver to improve the retention of transmitter to receiver synchronization in a noisy environment having receiver code that is less complex and does not require an increase in the bandwidth of the system since the control codes are already utilized to initiate other functions. Detection of any of the control characters of the same type by the receiver allows the receiver to maintain proper synchronization. The receiver will detect these control signals and anticipate the occurrence of an event within a predetermined time period.Type: ApplicationFiled: June 19, 2002Publication date: February 5, 2004Applicant: NexPress Solutions LLCInventors: William L. Chapman, Shawn E. O'Hara
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Patent number: 6678131Abstract: Electrical receptacles configured to eliminate arc faults rather than merely detect such faults with attendant circuit disconnection, the invention contemplates low-cost, child-safe electrical receptacles useful in residential situations and which can be fitted within the confines of single gang enclosures. The safety receptacles of the invention can be used in all use situations including both residential and industrial applications to increase safe use of electrical receptacles in residential applications in particular and to decrease industrial liabilities. In essence, the safety receptacles of the invention prevent arcing during insertion of a plug into the receptacle, during residence of the plug in the receptacle and during removal of the plug from the receptacle with a substantial load to the receptacle.Type: GrantFiled: April 23, 2001Date of Patent: January 13, 2004Assignee: RedGate Technologies, Inc.Inventors: William L. Chapman, Anthony R. Carson, Robert E. Redgate
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Publication number: 20020191068Abstract: A method and apparatus for increasing the linearity of elements within a printhead by applying a coarse electronic adjustment to rearrange the electronic printing of data into the proper pixel line and then applying a fine electronic adjustment to reduce the bow error to fraction of a pixel line. Delays of exposure control signals are used by the fine electronic adjustment to correct linearity by a fraction of a pixel line. The delays can be repeated to multiply the number of delays available and increase the linearity resolution. The delays can also be averaged between odd and even rows of elements to increase apparent resolution. The first embodiment employs digital circuitry to provide the fine adjustment of pixel data that is partially located on the interface board and partially located on the printhead substrate. This reduces the amount of circuitry placed within the ASICs on the printhead substrate.Type: ApplicationFiled: May 30, 2001Publication date: December 19, 2002Applicant: NexPress Solutions LLCInventors: Shawn E. O'Hara, William L. Chapman, Yee S. Ng
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Publication number: 20020154461Abstract: Electrical receptacles configured to eliminate arc faults rather than merely detect such faults with attendant circuit disconnection, the invention contemplates low-cost, child-safe electrical receptacles useful in residential situations and which can be fitted within the confines of single gang enclosures. The safety receptacles of the invention can be used in all use situations including both residential and industrial applications to increase safe use of electrical receptacles in residential applications in particular and to decrease industrial liabilities. In essence, the safety receptacles of the invention prevent arcing during insertion of a plug into the receptacle, during residence of the plug in the receptacle and during removal of the plug from the receptacle with a substantial load to the receptacle.Type: ApplicationFiled: April 23, 2001Publication date: October 24, 2002Inventors: William L. Chapman, Anthony R. Carson, Robert E. Redgate
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Publication number: 20020154321Abstract: A product and process for an LED printhead used in electrophotographic printing that generates an exposure clock on the printhead for the LEDs. The present invention provides a high-speed interface that transmits print data that has been modified, or corrected, using the corresponding unique printhead brightness data as the base reference source data to the printhead boards. The corrected print data is then applied to the LED drivers that expose each LED simultaneously and uniquely. A non-linear clock is applied to the LED drivers as the reference clock to create the unique LED on time circuit. An Exposure RAM stores the data as parallel 8-bit data. A LATCH code received at an ASIC converts the Exposure RAM data into a serial bit stream. The preferred embodiment employs a 60 MHz clock, however, it should be readily apparent that numerous other clocking speeds can be employed.Type: ApplicationFiled: February 27, 2001Publication date: October 24, 2002Applicant: NexPress Solutions LLCInventors: Hieu T. Pham, Yee S. Ng, Shawn E. O'Hara, William L. Chapman
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Patent number: 4953422Abstract: A compound angle limiting device is disclosed herein. The invention provides for control of the angular excursion of a pivotal mass within first and second angles about first and second axes without the necessity for external stops. The invention includes a first coupling mechanism for sensing movement of the mass about the first axis, a second coupling mechanism for sensing movement of the mass about the second axis; a first cam coupled to the mass via the first coupling mechanism and movable in response thereto; and a second cam coupled to the mass via the second coupling mechanism and movable in response thereto. The first and second cams are mounted for physical contact at at least one point to limit the compound angular excursion of the mass via the first and second coupling mechanisms.Type: GrantFiled: March 28, 1988Date of Patent: September 4, 1990Assignee: Hughes Aircraft CompanyInventors: William L. Chapman, Charles F. Marner, Daniel K. Schotter, Ronald L. Hehn
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Patent number: 4613980Abstract: An encode-decoder system for generating highly accurate, coinciding synchronizing signals at each of plural separated locations; for example, a system generating start signals for a seismic data acquisition system. The system transmits psuedo random code data over selected communication link to a respective position decoder which samples the incoming code and compares it with a standard code. If there can be established a predetermined number of successive code matches, an output start signal is enabled when the code match count first peaks and then decreases.Type: GrantFiled: September 4, 1984Date of Patent: September 23, 1986Assignee: Conoco Inc.Inventors: Larry L. Newlin, William L. Chapman
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Patent number: 4284350Abstract: A method for measuring the velocity of earth surface motion utilizing coherent light energy which comprises steps of generating and directing a coherent light beam toward a selected earth surface position, reflecting said beam from a stationary reflector located at the earth surface position, and simultaneously reflecting said beam from a reflector at said earth surface position which moves with earth surface motion; and, detecting the reflected beam, including both the reflection path components, to derive an instantaneous difference frequency that is proportional to the velocity of the earth surface motion.Type: GrantFiled: November 14, 1979Date of Patent: August 18, 1981Assignee: Conoco, Inc.Inventors: Julian B. Coon, Bobby J. Thomas, William L. Chapman, James C. Fowler
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Patent number: 4066992Abstract: A surveillance system for maintaining continuous vigil as to seismic energy generating disturbances in and around an underground mine, such system being one of permanent installation which in combination with central data processing apparatus provides a continuous data output indication of certain mine activities. The system utilizes a plurality of permanently installed, underground geophone sensors each in communication via particular ACC circuitry and signal processing circuitry to provide input through an interface logic network to a central computer equipment programmed to determine disturbance locations, certain intensities, time duration and the like.Type: GrantFiled: October 9, 1975Date of Patent: January 3, 1978Assignee: The United States of America as represented by the Secretary of the InteriorInventors: Paul L. Buller, William L. Chapman, Bobby J. Thomas, James C. Fowler