Patents Represented by Attorney, Agent or Law Firm Michael J. Turton
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Patent number: 6751006Abstract: Addressed herein are techniques and equipment for pre-processing digital images to be superimposed for display. Filtering, re-sampling, and decimation are variously used to process images and sub-images to produce to-be-superimposed images. One of the described techniques is designed primarily (although not necessarily exclusively) for computational efficiency, while the other sacrifices some computational efficiency for higher quality of output images.Type: GrantFiled: December 19, 2002Date of Patent: June 15, 2004Assignee: Imax CorporationInventors: Samuel Z. Zhou, Sean Adkins
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Patent number: 6582080Abstract: An electronic projector has a projection system that includes a spatial light modulator (SLM) for importing image information to the projected light beam. The light beam leaving the SLM is prepolarized in a defined orientation and the projected light is polarized in the same orientation so as to effectively block any light that has been scattered within the projector and become depolarized. The SLM may be a digital mirror device (DMD). Reflective surfaces within the projector may be covered or coated with material that alters the polarization of reflected stray light from the defined orientation or depolarizes the reflected stray light.Type: GrantFiled: January 30, 2002Date of Patent: June 24, 2003Assignee: Imax CorporationInventors: Michael A. Gibbon, Steven C. Read, Sean M. Adkins
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Patent number: 6416012Abstract: Apparatuses and methods are provided for cutting a traveling web of paper that is being spooled on a full spool and transferring the paper web to spool on an empty spool by driving turn-up tape into a nip between the empty spool and the paper web. The apparatuses and methods provide a more problem free way of transferring a traveling paper web to an empty spool.Type: GrantFiled: February 25, 2000Date of Patent: July 9, 2002Assignee: M.A. Industries, Inc.Inventors: Bryan N. Wilmoth, Bobbie D. Peacock, Robert W. Jones, II
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Patent number: 6384739Abstract: The system provides a method for gathering and sending monitored traffic data via a short messaging system message over a wireless network through a publicly switched telephone network (“PSTN”) to a central computer. A remote traffic monitoring unit acts as a data collection device collecting data regarding the traffic count and other conditions at its particular location. The remote traffic monitoring unit can monitor different types of traffic—for example, motor vehicles, trains, and pedestrians. The system routes data messages including monitored traffic count data from the remote traffic monitoring unit to a central computer and routes control information from the central computer to the remote traffic monitoring unit.Type: GrantFiled: May 10, 1999Date of Patent: May 7, 2002Assignee: Bellsouth Intellectual Property CorporationInventor: Evans V. Roberts, Jr.
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Patent number: 6341876Abstract: An illumination system for illuminating a spatial light modulator. An integrator rod is positioned in the light path between an arc lamp and the spatial light modulator. At the input surface of the integrated rod, there is positioned a field lens for defocusing areas of turbulence within the arc lamp. In the output surface of the integrated rod there is positioned a plate effective to prevent dust from being attracted to the output surface of the integrator rod. The integrator rod is effective to combine light from two separate light sources.Type: GrantFiled: October 21, 1999Date of Patent: January 29, 2002Assignee: Digital Projection LimitedInventors: Graham Harry Moss, Steven James Chapman
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Patent number: 6276801Abstract: A projecting display system includes a light source (101) which produces light which is spatially modulated by a number of spatial light modulators (105, 107). A splitting means (103) is provided in the light path between the light source (101) and the spatial light modulators (105 and 107) such that the overall luminous flux produceable by the system is not determined by the maximum luminous flux which each spatial light modultors (105, 107) can accommodate.Type: GrantFiled: April 28, 1997Date of Patent: August 21, 2001Assignee: Digital Projection LimitedInventor: Raymond G. Fielding
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Patent number: 6253922Abstract: A carpet sample book is provided which is constructed from a single sheet of material, such as cardboard. Tab and slot fasteners are used to avoid the need of adhesives. The samples are supported in the facing pages of the book by slots which are cut into the cardboard surface. The slots are cut in a “C” shape which allows the samples to be held at an angle.Type: GrantFiled: March 2, 2000Date of Patent: July 3, 2001Assignee: Interface, Inc.Inventor: James W. Hadden
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Patent number: 6250763Abstract: A projection device which includes a plurality of deflectable mirror arrays arranged to spatially modulate incident light. A totally internal reflecting surface is arranged to direct light to and from the deformable mirror array. The device includes on or more dichroic layers arranged at an angle relative to the incident light dependent on the spread of angles on the incident beam relative to the optical axis. Additionally or alternatively, the totally internally reflecting surface may be arranged to direct non-spatially modulated light towards a beam dump.Type: GrantFiled: February 5, 1998Date of Patent: June 26, 2001Assignee: Digital Projection LimitedInventors: Raymond Gordon Fielding, Martin Kavanagh, Graham Harry Moss
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Patent number: 6243057Abstract: A deformable mirror device having a two-dimensional array of mirror elements is driven in such a way to reduce the data rate and remove the need for buffer stores. The mirror elements are loaded row-by-row in response to an n bit video signal in 2n loading operations. Only n rows are loaded in each loading operation, the other rows remaining in their previous conditions, and the loading continues sequentially down the array. The timing of the loading is such that the duration from loading a given row with a first data bit to loading the same row with the next data bit is proportional to the significance of the first data bit.Type: GrantFiled: March 5, 1999Date of Patent: June 5, 2001Assignee: Digital Projection LimitedInventors: Peter William Blaxtan, John David Millward
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Patent number: 6205408Abstract: The present invention provides automated systems for performing electrostatic discharge (ESD) device efficacy monitoring and recording the results for an ESD auditing program. Systems of the present invention comprise at least one ESD device monitoring unit. A communication system allows the monitoring unit to communicate with a central computer which collects, stores and allows the manipulation of the test data. Systems of the present invention are therefore useful in testing the ESD devices, documenting their performance, and controlling access to particular work areas based on testing results.Type: GrantFiled: January 13, 2000Date of Patent: March 20, 2001Assignee: Semtronics CorporationInventors: Bradford Tyler Jubin, Michael Albert Sanchez
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Patent number: 6184852Abstract: A processing system for a spatial light modulator in the form of an array of defomable mirror devices receives a gamma-corrected, video input signal. A de-gamma processor removes all or part of the gamma-correction of the video input signal to match the data to the form of the spatial light modulator.Type: GrantFiled: September 10, 1999Date of Patent: February 6, 2001Assignee: Digital Projection LimitedInventors: John David Millward, John Gillespie
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Patent number: 6064366Abstract: A spatial light modulator in the form of a deformable mirror device (110) receives from a frame store (116) data which has been formatted by a data formatter (114) subsequent to gamma correction in a ROM look-up table (112). The DMD (110) displays different light levels by being ON for selected periods of a series of durations 4, 8, 16 . . . 1024 varying in proportion to a basic period multiplied by powers of two. The shortest duration 4 for which the DMD can be turned on is a multiple of the basic period, and the series includes additional durations 5, 6 and 7 in the series between the shortest displayable duration 4 and the next power of two 8. Durations 1, 2 and 3 of less than the shortest displayable duration can be displayed by adjusting the turn-on time of a proportion of the adjacent mirrors. The longest duration for which the mirror can be turned on can be employed twice.Type: GrantFiled: June 3, 1997Date of Patent: May 16, 2000Assignee: Digital Projection LimitedInventors: John David Millward, John Gillespie
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Patent number: 6057816Abstract: A method and apparatus for driving a display device including a matrix array of deflectable mirror devices is described. The deflectable mirror devices are divided into blocks of N rows. Selected groups of mirror devices within each block are loaded with single bit data in a cycle of loading operations During at least some of the loading operations, two series of reset cycles are used enabling one single bit cycle in one group to terminate and another single bit cycle in another group to commence within a single loading operation. Active bit data may be loaded and displayed in the otherwise unused time intervals between the active bits.Type: GrantFiled: October 24, 1996Date of Patent: May 2, 2000Assignee: Digital Projection LimitedInventor: Brian Eckersley
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Patent number: 6052053Abstract: The present invention provides automated systems for performing electrostatic discharge (ESD) device efficacy monitoring and recording the results for an ESD auditing program. Systems of the present invention comprise at least one ESD device monitoring unit. A communication system allows the monitoring unit to communicate with a central computer which collects, stores and allows the manipulation of the test data. Systems of the present invention are therefore useful in testing the ESD devices, documenting their performance, and controlling access to particular work areas based on testing results.Type: GrantFiled: October 22, 1997Date of Patent: April 18, 2000Assignee: Semtronics CorporationInventors: Bradford Tyler Jubin, Michael Albert Sanchez
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Patent number: D490907Type: GrantFiled: July 17, 2003Date of Patent: June 1, 2004Assignee: M.A. Industries, Inc.Inventors: Bobbie Don Peacock, Charles McInvale
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Patent number: D498131Type: GrantFiled: June 26, 2003Date of Patent: November 9, 2004Assignee: M.A. Industries, Inc.Inventors: Bobbie Don Peacock, Charles McInvale