Patents Assigned to UDT Sensors, Inc.
  • Patent number: 6625553
    Abstract: A self-contained safety and security system and method that performs the multiple functions of theft deterrence, battery saving, battery analysis system, accident protection, and telemetry and control data communication for vehicles is disclosed. The present invention is an electronically-based system for a vehicle having an existing power transmission circuit including a battery that can be readily installed and made operational by an individual having no special training using common household tools. The safety and security system requires the installation of no dedicated wiring in the vehicle. Furthermore, the system preferably installs without any cutting or splicing of the wiring in the vehicle's electrical system.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: September 23, 2003
    Assignee: UDT Sensors, Inc.
    Inventor: Onkar S. Modgil
  • Patent number: 6593636
    Abstract: A high-speed silicon photodiode and method of manufacture include a first layer of silicon having thickness in a range of about 125 &mgr;m to about 550 &mgr;m. A second layer of silicon has a thickness in a range of about 3 &mgr;m to about 16 &mgr;m and a resistivity of at least about 500 ohm-cm. This first layer is doped with a second type of impurity. In an alternative aspect, a high-speed silicon photodiode and method of manufacture includes a silicon wafer doped with a first type of impurity. On a first side of the wafer a doping of a second type is applied in an active area of a photodiode. On the reverse of the wafer a volume of silicon is etched away and the resulting trench is coated with a conductor. The wafer may also exhibit a high resistivity of at least about 500 ohm-cm. In each aspect, a reverse bias not exceeding about 3.3 volts permits operation with a frequency response of at least 750 MHz.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: July 15, 2003
    Assignee: UDT Sensors, Inc.
    Inventors: Peter Steven Bui, Narayan Dass Taneja
  • Publication number: 20020111756
    Abstract: A self-contained safety and security system and method that performs the multiple functions of theft deterrence, battery saving, battery analysis system, accident protection, and telemetry and control data communication for vehicles is disclosed. The present invention is an electronically-based system for a vehicle having an existing power transmission circuit including a battery that can be readily installed and made operational by an individual having no special training using common household tools. The safety and security system requires the installation of no dedicated wiring in the vehicle. Furthermore, the system preferably installs without any cutting or splicing of the wiring in the vehicle's electrical system.
    Type: Application
    Filed: February 13, 2001
    Publication date: August 15, 2002
    Applicant: UDT SENSOR, INC
    Inventor: Onkar S. Modgil
  • Patent number: 6385821
    Abstract: A strap or fastener for removably securing an oximeter probe to the appendage of a patient. The strap is made of an elastic material that wraps around the outside of the oximeter probe and is secured to the oximeter probe by attachment mechanisms such as Velcro that can be readjusted after initial application without producing excessive stress on the spring hinge of the oximeter probe.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: May 14, 2002
    Assignee: UDT Sensors, Inc.
    Inventors: Onkar S. Modgil, Christopher G. Chin