Patents by Inventor Manouchehr E. Motamedi

Manouchehr E. Motamedi 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: 7706573
    Abstract: The disclosed method measures the distance between two arbitrary points of interest from the user position by determining the range and angle between the two points. To measure the angle between the two points, a first method uses a micro-opto-electro-mechanical scanner to form a scan line between the two points of interest. A scan angle is determined based on the applied AC voltage needed to cause the endpoints of the scan line to coincide with the points of interest. The second method, an image-processing method, is applied to determine the angles between the points of interest. A Microprocessor uses captured images including the points of interest to determine the angle between the points. In both methods, the Microprocessor calculates the distance between the two points of interest by using the determined angle, together with the measured ranges and sends the calculated distance to a display.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: April 27, 2010
    Inventors: Manouchehr E. Motamedi, Ali E. Dabiri
  • Patent number: 7641343
    Abstract: The objective of the present method and apparatus is to provide a portable diagnosis system for a quick and reliable method to examine the conditions of a human eye-lens. The method provides precise and safe technique for the early diagnosis of Alzheimer's Disease (AD) which is not involved brain surgery or biopsy. The detection of deposited layers of amyloid plaque in the eyes of the patient has been discovered to be a possible diagnosis solution. The disclosed method uses terahertz waves instead of laser for scanning the eye of the AD patient to precisely image the amyloid layer non-evasively in real time and to map the deposited plaque with high resolution which can easily distinguish the abnormality of an AD patient with the comparison of the patient eye-lens test to the available signature of a normal person and the signature of a person with common age-related cataracts.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: January 5, 2010
    Inventors: Manouchehr E. Motamedi, Ali Dabiri
  • Patent number: 6992824
    Abstract: A method of wave propagation from 100–10000 GHz. The currently disclosed method and apparatus adapts micro-opto-electro-mechanical systems (MOEMS) technologies and processes to construct Kinoform optical components from microwave to terahertz range. The method uses induced coupled plasma (ICP) and gray scale processes for upper terahertz band; LIGA-based high aspect ratio (HAR) and gray scale processes are for the mid band; and computer numerical control (CNC) for lower band. In all cases, the thickness of any processed components is about the respective wavelength and system efficiency is about 95%. A Kinoform lens element is designed at 5000 GHz. However, the method is applicable for the entire terahertz band.
    Type: Grant
    Filed: December 27, 2003
    Date of Patent: January 31, 2006
    Inventors: Manouchehr E. Motamedi, Ali E. Dabiri
  • Patent number: 6839172
    Abstract: Electromagnetic waves in wide frequency ranges up to photonics have been used for applications to time-domain imaging (TDI). Realistic time domain imaging requires a rapid optical delay line on the order of 100 ps with sampling rate at least 100 Hz. Present available optical time delay systems suffer either from low sampling rate or low time delay length, deviating from ideal requirements. The purpose of this invention is to introduce a miniature and rapid scanning optical delay line based on micro-opto-electro-mechanical system (MOEMS) technology to improve the data acquisition in time domain imaging, capable of sampling rate beyond 100 Hz and time delays beyond the 100 ps.
    Type: Grant
    Filed: November 15, 2003
    Date of Patent: January 4, 2005
    Inventors: Manouchehr E. Motamedi, Ali E. Dabiri
  • Patent number: 6751009
    Abstract: An acousto-micro-optic deflector (AMOD) is provided. This device uses a special combination of an acousto-optic deflector (AOD) and a micro-optic deflector (MOD) to provide agile gimballess beam steering over large angles. The combination is driven such that the entire field of regard of the device is accessible, and continuous contact with the target point is maintained.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: June 15, 2004
    Assignee: The Boeing Company
    Inventors: Mohsen Khoshnevisan, Ian McMichael, Manouchehr E. Motamedi
  • Patent number: 6320707
    Abstract: A piezoelectric translator has a flat ribbon geometry and a large translation length perpendicular to the surface of the bridge. The translator includes a platform supporting the optic or micro-optic element and a slender piezo actuation system for displacing the platform. A position sensing system provides feedback to the actuation system regarding displacement of the platform. The actuation system includes a plurality of bridge actuators wherein each actuator includes a flat piezoelectric ribbon and leaf spring cap bonded to the ribbon, in single- or double-sided geometry. A stacked bridge geometry is also provided and allows increased displacement for a given applied voltage. Two collinearly placed single span bridge actuators or two-span bridge actuators can be used to provide linear translations with micro-rotation control.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: November 20, 2001
    Assignee: The Boeing Company
    Inventors: Mohsen Khoshnevisan, Manouchehr E. Motamedi, Jeffrey Glenn Nelson, Ratnakar R. Neurgaonkar
  • Patent number: 5438231
    Abstract: A method to fabricate a tuning fork resonator gyro which uses non-piezoelectric substrate structure is proposed. The tuning fork structure can be effectively rendered piezoelectric for activation and sensing by thin film deposition of a piezoelectric material. Electrical excitation of the piezo film excites vibrations in the structure of the drive tuning fork, and the gyro signal generated due to rotation can be picked up from the piezo film on the signal tuning fork. Most piezoelectric films have a much higher piezoelectric coupling than crystalline quartz, the material used in the prior art. The piezoelectric films on mechanically hard non-piezoelectric substrates are simpler for fabrication, electroding, and have a number of other advantages over the prior art. Fabrication of the tuning fork structures can be done more simply than the prior art, and deposition of the piezo films can be accomplished by sol-gel, or other thin film techniques.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: August 1, 1995
    Assignee: Rockwell International Corporation
    Inventors: Mohsen Khoshnevisan, Manouchehr E. Motamedi, Ratnakar R. Neurgaonkar
  • Patent number: 4670092
    Abstract: A monolithic accelerometer is fabricated with an integral cantilever beam sensing element which is etched out of a silicon wafer from the back surface. A thermal silicon oxide is formed on both surfaces of a (100) silicon wafer. Silicon oxide is removed from the back surface in a pattern which defines the sides of the cantilever beam and the sides of an alignment groove. The width and orientation of the openings in the silicon oxide are selected to control the depth of etching when the wafer is subsequently etched with an anisotropic etchant. An integrated circuit is then formed on the front surface and dry etching is used to complete the groove and separate the sides of the beam from the wafer.
    Type: Grant
    Filed: April 18, 1986
    Date of Patent: June 2, 1987
    Assignee: Rockwell International Corporation
    Inventor: Manouchehr E. Motamedi
  • Patent number: 4589009
    Abstract: A piezoelectric double diffusion MOS structure in which three gates are inserted in the CVD oxide element. These gates are overlapped layers of CVD polysilicon on top of the ZnO and are capacitively coupled to the silicon substrate. The charge is placed on the middle floating gate and is retained because of the oxide layers which separate the gates. A program erase, gate is provided for discharging the floating gate and to set the modes.
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: May 13, 1986
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Manouchehr E. Motamedi