Temperature control in an optical amplification system
Granted: October 31, 2006
Patent Number:
7130110
Systems and methods for controlling temperature in an optical amplification system are provided. An optical amplification system comprises a pump laser, a multiplexer, an optical fiber, a temperature control device, and processing circuitry. The pump laser generates an optical pump signal. The multiplexer multiplexes the optical pump signal and an input optical signal to generate a multiplexed optical signal. The optical fiber receives the multiplexed optical signal. The temperature…
Interconnect for electrically connecting a multichip module to a circuit substrate and processes for making and using same
Granted: July 11, 2006
Patent Number:
7073253
An interconnect for attaching a module such as a PCB or a multi-chip module to a circuit substrate comprises a member elongated in a longitudinal direction. The member has at least a first elongated side and a second opposed and generally parallel elongated side. The first and second sides extend in the longitudinal direction. Each of the first and second sides have at least one portion formed by a series of depressions in the respective first and second sides. The depressions extend…
Cooling airflow distribution device
Granted: March 14, 2006
Patent Number:
7011576
A system for removing heat from a plurality of electronic assemblies including a cabinet having brackets for supporting electronic assemblies in a vertical array between a first vertical airflow path and a second vertical air flow path of the cabinet, and a plinth underlying the cabinet and having an input port receiving air from the first vertical airflow path of the cabinet, an output port transmitting air to the second vertical air flow path, a heat exchanger positioned in an air flow…
Cable dispenser and method
Granted: January 24, 2006
Patent Number:
6988854
Fiber-optic cable is dispensed underwater into a trench from a vehicle moving along the bed of the body of water. The cable is wound on a stationary spool and dispensed over the end of the spool by a rotary arm driven by a motor controlled to maintain a desired tension in the cable. The cable has a fiber optic core, metal wires wound around the core, and a tensioned laminate of copper tape adhered to plastic tape wound around the wires.
Electro-optical transducer with multi-reflector beam-expanding and collimating input/output device
Granted: November 8, 2005
Patent Number:
6963678
A system of reflectors is used to form beam-expanding and collimating electro-optic transducer devices, including radiation sources and/or detectors. Preferably, the reflector system is of the Cassegrainian or Ritchey-Chretien type. Radiation such as light signals can be conducted to or from the transducers by fiber-optic cables. Alignment of optical conductors or “cores” of the fiber-optic cables or the reflector system with a transducer is provided by coupling a magnetic member to…
Laser trimming of resistors
Granted: September 6, 2005
Patent Number:
6940038
Improved systems and methods for laser trimming resistors printed on a substrate layer are provided. An exemplary embodiment measures a resistance value for each annular resistor and sorts the annular resistors into one or more bins based on the measured resistance values and target resistance values associated with each resistor. A laser trim file may then be assigned to each bin based on a predictive trim formulation, where each laser trim file defines a set of configuration parameters…
Circuit board standoff
Granted: August 2, 2005
Patent Number:
6923691
A circuit board standoff for use with SMT placement machinery is provided comprising a hollow substantially cylindrical member, a flange extending from a bottom section of the cylindrical member and an opening positioned in the top section of the substantially cylindrical member operable to receive a fastener. The circuit board standoff operates to provide physical connection between two circuit boards while maintaining a minimum distance there between for inclusion of any required…
Stiffener for stiffening a circuit board
Granted: April 19, 2005
Patent Number:
6880243
A printed circuit board stiffener is provided comprising a generally U-shaped elongated horizontal assembly having a substantially horizontal surface, an elongated vertical member extending downward from and rigidly coupled to one of the elongated horizontal assembly members opposite the assembly's curved edge and having a plurality of legs extending from the elongated vertical member, each such leg further comprising a flange extending substantially perpendicular to its respective…
Current mode coupler having a unitary casing
Granted: September 21, 2004
Patent Number:
6794769
A current mode coupler includes a unitary casing, a stub cable connector, a circuit board, a magnetic structure, a wire core holder, an enclosing lid and an E-core situated in a cavity in the unitary casing and an I-core affixed to the enclosing lid. When the enclosing lid is in a closed position, the E-core and the I-core contact, forming a transformer. When electrical current is present in a data bus that is situated within the E-core/I-core arrangement, the coupler magnetically…
Towed airborne vehicle control and explosion damage assessment
Granted: May 25, 2004
Patent Number:
6739232
Device and method for controlling a towed vehicle such as a bomb damage detector towed on a tether cord behind the bomb. The towed vehicle is ejected from the bomb at a selected release point in its trajectory. A tether cord is wound on a spool and dispensed from the spool longitudinally. The payout of tether cord is braked by a brake using the wrapping of the cord around a curved guide to increase the braking force supplied by an electric brake. The vehicle can be completely released…
Cooling airflow distribution device
Granted: November 25, 2003
Patent Number:
6652373
A system for removing heat from a plurality of electronic assemblies including a cabinet having brackets for supporting electronic assemblies in a vertical array between a first vertical airflow path and a second vertical air flow path of the cabinet, and a plinth underlying the cabinet and having an input port receiving air from the first vertical airflow path of the cabinet, an output port transmitting air to the second vertical air flow path, a heat exchanger positioned in an air flow…
Cooling airflow distribution device
Granted: November 25, 2003
Patent Number:
6652374
A system for removing heat from a plurality of electronic assemblies including a cabinet having brackets for supporting electronic assemblies in a vertical array between a first vertical airflow path and a second vertical air flow path of the cabinet, and a plinth underlying the cabinet and having an input port receiving air from the first vertical airflow path of the cabinet, an output port transmitting air to the second vertical air flow path, a heat exchanger positioned in an air flow…
Cooling airflow distribution device
Granted: January 14, 2003
Patent Number:
6506111
A system for removing heat from a plurality of electronic assemblies including a cabinet having brackets for supporting electronic assemblies in a vertical array between a first vertical airflow path and a second vertical air flow path of the cabinet, and a plinth underlying the cabinet and having an input port receiving air from the first vertical airflow path of the cabinet, an output port transmitting air to the second vertical air flow path, a heat exchanger positioned in an air flow…
