Patents by Inventor Majid L. Riaziat
Majid L. Riaziat 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: 7640607Abstract: A patient support system includes a patient support, and a positioning system for positioning the patient support, wherein the positioning system is capable of placing the patient support such that a point on the patient support is at a location, and rotating the patient support about a vertical axis that intersects the point, wherein the positioning system includes a first arm and a second arm rotatably coupled to the first arm, and the patient support is rotatably coupled to the second arm. A patient support system includes a first base portion rotatable about a first vertical axis, a second base portion rotatably coupled to the first base portion such that the second base portion is rotatable relative to the first base portion about a second vertical axis, a first arm coupled to the second base portion, a second arm rotatably coupled to the first arm, and a patient support rotatably coupled to the second arm.Type: GrantFiled: May 1, 2006Date of Patent: January 5, 2010Assignee: Varian Medical Systems, Inc.Inventors: Timothy E. Guertin, Marcel R. Marc, Richard H. Stark, Stanley Mansfield, Majid L. Riaziat, Steven W. Prince
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Publication number: 20080201208Abstract: An advertising system has a public electronic sign and an audience feedback tracking system that tracks the audience reaction to an advertisement on the electronic sign. The feedback system can include a camera and software that can count the number of people in the audience or provide other data. The feedback system may include an audio feedback system. The system also may include a factor dependent advertising content scheduler that plays an advertisement based on an external factor such as the weather. The display may be cylindrical and may have a number of images displayed simultaneously. Any audio associated with these images may be spatially coordinated with the display images. The display may include a telemetry system that monitors the status of the display.Type: ApplicationFiled: February 14, 2008Publication date: August 21, 2008Inventors: Thomas Hiramatsu Tie, Majid L. Riaziat, Hugh Norman Chapman
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Patent number: 7403638Abstract: A method and system for monitoring breathing movement of a subject is disclosed. A method and system for detecting and predictably estimating regular cycles of breathing movements is disclosed. Another disclosed aspect of the invention is directed to detect and report irregularity of breathing activity of an infant, such as cessation and non-periodicity, which suggests a likelihood of SIDS.Type: GrantFiled: October 14, 2006Date of Patent: July 22, 2008Assignee: Varian Medical Systems Technologies, Inc.Inventors: Andrew Jeung, Hassan Mostafavi, Majid L. Riaziat, Robert M. Sutherland, George Zdasiuk
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Patent number: 7204254Abstract: A system and method for measuring and correcting the position of a patient are disclosed. According to an aspect of the invention, reference coordinates for particular body locations on the patent are determined. At a later treatment session, the relative positioning of the patient's body locations are adjusted to match the relative positioning of the reference coordinates. The entire body of the patient can thereafter be moved as a single unit to match the patient's body location with the absolute location of the reference coordinates.Type: GrantFiled: August 27, 2001Date of Patent: April 17, 2007Assignee: Varian Medical Systems, Technologies, Inc.Inventors: Majid L. Riaziat, Marcel Marc, Stanley Mansfield, Hassan Mostafavi
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Patent number: 7123758Abstract: A method and system for monitoring breathing movement of a subject is disclosed. A method and system for detecting and predictably estimating regular cycles of breathing movements is disclosed. Another disclosed aspect of the invention is directed to detect and report irregularity of breathing activity of an infant, such as cessation and non-periodicity, which suggests a likelihood of SIDS.Type: GrantFiled: December 20, 2002Date of Patent: October 17, 2006Assignee: Varian Medical Systems Technologies, Inc.Inventors: Andrew Jeung, Hassan Mostafavi, Majid L. Riaziat, Robert M. Sutherland, George Zdasiuk
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Patent number: 6980679Abstract: A method and system for monitoring breathing movement of an infant is disclosed. A method and system for detecting and predictably estimating regular cycles of breathing movements is disclosed. Another disclosed aspect of the invention is directed to detect and report irregularity of breathing activity of an infant, such as cessation and non-periodicity, which suggests a likelihood of SIDS.Type: GrantFiled: November 25, 2002Date of Patent: December 27, 2005Assignee: Varian Medical System Technologies, Inc.Inventors: Andrew Jeung, Hassan Mostafavi, Majid L. Riaziat, Robert M. Sutherland, George Zdasiuk
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Publication number: 20040071337Abstract: A method and system for monitoring breathing movement of a subject is disclosed. A method and system for detecting and predictably estimating regular cycles of breathing movements is disclosed. Another disclosed aspect of the invention is directed to detect and report irregularity of breathing activity of an infant, such as cessation and non-periodicity, which suggests a likelihood of SIDS.Type: ApplicationFiled: December 20, 2002Publication date: April 15, 2004Inventors: Andrew Jeung, Hassan Mostafavi, Majid L. Riaziat, Robert M. Sutherland, George Zdasiuk
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Patent number: 6690965Abstract: A method and system for physiological gating for radiation therapy is disclosed. According to an aspect, the invention comprises the use of an optical or video image system to measure regular physiological movement of a patient's body. The image data can be used to quantify voluntary or involuntary motion of the patient that may affect the delivery of radiation to a target tissue. A gating signal can be generated to suspend delivery of radiation upon certain threshold event detected in the physiological movement.Type: GrantFiled: November 14, 2000Date of Patent: February 10, 2004Assignee: Varian Medical Systems, Inc.Inventors: Majid L. Riaziat, Stanley Mansfield, Hassan Mostafavi
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Publication number: 20040005088Abstract: A method and system for monitoring breathing movement of an infant is disclosed. A method and system for detecting and predictably estimating regular cycles of breathing movements is disclosed. Another disclosed aspect of the invention is directed to detect and report irregularity of breathing activity of an infant, such as cessation and non-periodicity, which suggests a likelihood of SIDS.Type: ApplicationFiled: November 25, 2002Publication date: January 8, 2004Inventors: Andrew Jeung, Hassan Mostafavi, Majid L. Riaziat, Robert M. Sutherland, George Zdasiuk
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Patent number: 6428504Abstract: An apparatus and method to implement and control a plurality of minimally invasive therapies in the treatment of a medical condition of a patient based on a treatment plan. The apparatus includes a template which has a plurality of electrically conductive apertures, a plurality of needles which have a plurality of sensors and a processor. At least one of the needles is inserted through and in electrical contact with one of the conductive apertures. The processor is electrically coupled to the template and is configured to send signals to and receive signals from at least one of the sensors of at least one of the needles inserted through one of the conductive apertures. The processor is further configured to process the signals received from the sensor in relation to the treatment plan and to adjust the signals sent to the sensor to control the treatment.Type: GrantFiled: April 6, 2000Date of Patent: August 6, 2002Assignee: Varian Medical Systems, Inc.Inventors: Majid L. Riaziat, George A. Zdasiuk, Robert M. Sutherland, Andrew G. Jeung, Steven Bandy
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Publication number: 20020023652Abstract: A system and method for measuring and correcting the position of a patient are disclosed. According to an aspect of the invention, reference coordinates for particular body locations on the patent are determined. At a later treatment session, the relative positioning of the patient's body locations are adjusted to match the relative positioning of the reference coordinates. The entire body of the patient can thereafter be moved as a single unit to match the patient's body location with the absolute location of the reference coordinates.Type: ApplicationFiled: August 27, 2001Publication date: February 28, 2002Inventors: Majid L. Riaziat, Marcel Marc, Stanley Mansfield, Hassan Mostafavi
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Patent number: 6279579Abstract: A system and method for measuring and correcting the position of a patient are disclosed. According to an aspect of the invention, reference coordinates for particular body locations on the patent are determined. At a later treatment session, the relative positioning of the patient's body locations are adjusted to match the relative positioning of the reference coordinates. The entire body of the patient can thereafter be moved as a single unit to match the patient's body location with the absolute location of the reference coordinates.Type: GrantFiled: October 23, 1998Date of Patent: August 28, 2001Assignee: Varian Medical Systems, Inc.Inventors: Majid L. Riaziat, Marcel Marc, Stanley Mansfield, Hassan Mostafavi
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Patent number: 5703706Abstract: An optical pulse propogating in an optical guide of an electro-optic medium interacts with a coplanar RF traveling wave to shift the optical wavelength. The RF phase is resynchronized to the optical pulse phase with spatial periodicity to provide a desired phase relationship between RF and optical radiation. A unidirectional incremental wavelength shifter comprises a frequency multiplexer for soliton communication and a symmetrical sideband modulator of this type varies the spectral width of probe illumination in an atomic absorption spectrometer probe beam.Type: GrantFiled: January 11, 1996Date of Patent: December 30, 1997Assignee: Varian Associates, Inc.Inventors: James N. Eckstein, Majid L. Riaziat, Gary F. Virshup
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Patent number: 5517346Abstract: An optical pulse propogating in an optical guide of an electro-optic medium interacts with a coplanar RF traveling wave to shift the optical wavelength. The RF phase is resynchronized to the optical pulse phase with spatial periodicity to provide a desired phase relationship between RF and optical radiation. A unidirectional incremental wavelength shifter comprises a frequency multiplexer for soliton communication and a symmetrical sideband modulator of this type varies the spectral width of probe illumination in an atomic absorption spectrometer probe beam.Type: GrantFiled: September 16, 1994Date of Patent: May 14, 1996Inventors: James N. Eckstein, Majid L. Riaziat, Gary F. Virshup