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| Number | Title | Issue Date |
| 5264326 | Polyimide thermal isolation mesa for a thermal imaging system A mesa (31) is formed from polyimide (or a similar polymer material) to achieve a high thermal resistance. In an exemplary thermal imaging application, an array of thermal isolation mesa structures (30) are disposed on an integrated circuit substrate (20)... | 11/23/1993 |
| 4771437 | Integrated laser/FLIR rangefinder A laser transmitter is comprised of a power converter connected to a power conditioner for converting the preregulated dc power to high voltage dc required for laser discharge. A pulse forming network is connected to the power converter, for generating sh... | 09/13/1988 |
| 4335391 | Non-volatile semiconductor memory elements and methods of making The invention is embodied in a non-volatile metal-insulator-semiconductor having a novel combination of insulating layers including a titanium dioxide layer covered by a silicon dioxide layer. In one embodiment of the invention the insulator combination a... | 06/15/1982 |
| 4325180 | Process for monolithic integration of logic, control, and high voltage interface circuitry Monolithic integration of digital logic circuitry, precision control circuitry, and high voltage interface circuits on the same semiconductor chip is achieved, including various combinations selected from D-MOS, vertical NPN, lateral NPN, PNP, P-MOS, N-MO... | 04/20/1982 |
| 4218519 | Configuration for a gas redox fuel cell employing an ion exchange membrane An improved fuel cell having an inter-electrode electrolyte chamber and wherein provision is made for periodically or continuously extracting impure electrolyte from the chamber and replacing it with relatively pure electrolyte.... | 08/19/1980 |
| 4215398 | Dual microprocessor intelligent programmable process control system with communication link An intelligent programmable process control system for controlling industrial processing and manufacturing equipment and the like utilizes a unique system of cooperating dual microprocessors. A digital microprocessor is utilized for digital computation an... | 07/29/1980 |
| 4215395 | Dual microprocessor intelligent programmable process control system An intelligent programmable process control system for controlling industrial processing and manufacturing equipment and the like utilizes a unique system of cooperating multiple microprocessors. A multi-bit microprocessor is utilized for controlling the ... | 07/29/1980 |
| 4215396 | Intelligent programmable process control system An intelligent programmable process control system for controlling industrial processing and manufacturing equipment and the like utilizes a unique system of cooperating multiple processors. A digital processor is utilized for controlling the analog porti... | 07/29/1980 |
| 4215397 | Automatic end-of-scan control system for a programmable process controller with expandable memory An intelligent programmable process control system is responsive to the states of sensors located along a process for controlling the states of controllable devices located along the process. The system includes a microprocessor which sequentially scans a... | 07/29/1980 |
| 4215399 | Special function control system for a dual microprocessor programmable process control system An intelligent programmable process control system including a first microprocessor which scans and executes a sequence of boolean logic functions and a second microprocessor which performs complex operations including arithmetic computations beyond the c... | 07/29/1980 |
| 4207360 | Silicon seed production process In the production of elemental silicon by chemical vapor deposition on a particulate seed bed, the continuous generation of seed particles for use or recycle is achieved by the maintenance of a separate, subsidiary reaction zone at a temperature which fav... | 06/10/1980 |
| 4187493 | Frequency multiplexed seismic cable A cable for electrically connecting a plurality of seismic receivers to a central data collecting unit contains a single electrical channel. The output signal of each seismic receiver is used to modulate a carrier signal having its own distinct frequency.... | 02/05/1980 |
| 4182781 | Low cost method for forming elevated metal bumps on integrated circuit bodies employing an aluminum/palladium metallization base for electroless plating Elevated metal contact bumps are provided on a microelectronic semiconductor circuit, with the use of aluminum-palladium metallization as a base for selective electroless plating. The aluminum and palladium are preferably deposited sequentially in a singl... | 01/08/1980 |
| 4181964 | Integrated electronics assembly on a plastic chassis The invention defines a technique for assemblying all the parts of an electronic unit, for example a hand held calculator, directly on a plastic chassis without using individual printed circuit boards for various circuits of the calculator. Such parts of ... | 01/01/1980 |
| 4180749 | Input buffer for integrated injection logic circuits An input buffer gate for integrated injection logic (I2 L) circuits, including a multiple-collector transistor wherein a first collector is electrically common with the base thereof, a second (Schottky) collector is connected to receive an inpu... | 12/25/1979 |
| 4178224 | Apparatus for generation and control of dopant and reactive gases A system for supplying arsine having automatic arsine monitoring and controls to a semiconductor reactor is described wherein arsine is electrochemically generated from an electrolyte solution such as an inorganic acid and an arsenite salt. The electrolyt... | 12/11/1979 |
| 4175284 | Multi-mode process control computer with bit processing A data processing system has a processing unit adapted to decode instructions and a memory to store the instructions. A communication register has a plurality of binary bit positions with each bit position having bistable states. A first bit position in t... | 11/20/1979 |
| 4172990 | Control system for inductively controlled multi-phase motor A control system moves an inductively controlled multi-phase motor in a forward or reverse direction. The motion may be in steps or it may be a continuous rotation. A microprocessor under the control of a ROM operates through an integrated input/out devic... | 10/30/1979 |
| 4159516 | Input/output controller having selectable timing and maskable interrupt generation An input/output controller provides a numer of adjustable timers for timing events such as for polling external devices and includes circuitry which generates interrupt vector signals upon the occurrence of certain events, including the expiration of time... | 06/26/1979 |
| 4152691 | Seismic recording method using separate recording units for each group A system of land (field) seismic exploration which eliminates the requirement for a main land cable to transmit seismic data from the sensors to a central recorder is disclosed. The system includes: a seismic source for generating seismic energy; a data a... | 05/01/1979 |
| 4144507 | Surface acoustic wave resonator incorporating coupling transducer into reflecting arrays Acoustic surface wave resonator structure in which coupling transducers are incorporated within reflecting arrays. Heretofore, acoustic surface wave resonator devices have included one or more interdigital transducers disposed in the resonant cavity betwe... | 03/13/1979 |
| 4139074 | Seismic exploration system for ice covered areas Seismic exploration method in arctic regions involving the generation of a seismic disturbance in the water beneath the ice in areas where conventional marine and land exploration methods are functionally inadequate. Seismic disturbances are generated by ... | 02/13/1979 |
| 4135281 | Metal-dielectric electron beam scanning stack A metal-dielectric electron beam scanning stack and method for making the same is disclosed. The electron beam scanning stack subassembly is fabricated from at least a pair of metal plates, each having a plurality of apertures defined therein. Individual ... | 01/23/1979 |
| 4126812 | Spherical light emitting diode element and character display with integral reflector Light emitting p-n junction diode elements in the form of small spheres having an outer layer of semiconductor material of one conductivity type and a subsurface layer of semiconductor material of an opposite conductivity type are mounted to one surface o... | 11/21/1978 |
| 4121760 | Electronic multibase calculator A selectively alterable base numerical system in which a calculator implemented in a few semiconductor chips has a keyboard to enter numeric data and to command functions to be performed on the data by circuitry on the semiconductor chips in a first numbe... | 10/24/1978 |
| 4118650 | Internally supported flat tube display A flat tube display is fabricated having internal structural supports running the height of the display at selected periodic intervals. This construction permits light weight face plates and back plates to be used in the construction of displays independe... | 10/03/1978 |
| 4118651 | Internally supported flat tube display A flat tube display is fabricated having internal structural supports running the height of the display at selected periodic intervals. This construction permits light weight face plates and back plates to be used in the construction of displays independe... | 10/03/1978 |
| 4116530 | Optical waveguides grown by selective liquid phase epitaxy This disclosure concerns optical waveguides of arcuate structure fabricated by selective liquid phase epitaxy. In integrated optical circuits requiring complex processing, it will be necessary to utilize at relatively low light losses bends, curves, and d... | 09/26/1978 |
| 4115014 | Impact printer driveshaft gear and bearing assembly A driveshaft having a square cross section for driving the paper feed tractors of an impact printer fits, at each end, into the square sockets of a bushing assembly and a gear and hub assembly, respectively. The bushing assembly has an outer circular bear... | 09/19/1978 |
| 4114257 | Method of fabrication of a monolithic integrated optical circuit A method for fabricating a three-dimensional integrated optical circuit is disclosed. Selective liquid phase epitaxy is utilized to grow active electro-optic devices consisting of an I-bar mesa laser, a directional-coupler switch and a channel-waveguide m... | 09/19/1978 |
| 4112575 | Fabrication methods for the high capacity ram cell Disclosed is a process for constructing an array of memory cells. Each cell is constructed to have a high storage capacity and low leakage current. The cells are formed on a surface of a semiconductor substrate. Each cell has a storage region and an adjac... | 09/12/1978 |
| 4110838 | Magnetic bubble memory package A magnetic bubble domain package which insures a coplanar relationship between the signal leads and the active surface of the magnetic bubble domain chip and also insures the precise location of the magnetic bubble domain chip within the most uniform part... | 08/29/1978 |
| 4110707 | Indirect FM modulation scheme using phase locked loop A phase space locked loop system used for performing indirect frequency modulation. A phase locked loop is comprised of a phase detector coupled to a low pass filter coupled to a voltage controlled oscillator with a feedback loop to the phase detector. In... | 08/29/1978 |
| 4109298 | Connector with printed wiring board structure An improved connector having a printed wiring board structure and integrally connected to a printed wiring board. The connectors are suitable for use as part of a printed wiring board having a metal substrate. The connectors are finger-like structures, wh... | 08/22/1978 |
| 4103347 | Zig-zag SPS CCD memory A CCD memory is comprised of an array of serial-parallel-serial memory blocks. Each block is comprised of an N-stage serial-parallel register, an M-stage stack, and an N-stage parallel-serial register. The serial-parallel register has N outputs which coup... | 07/25/1978 |
| 4098917 | Method of providing a patterned metal layer on a substrate employing metal mask and ion milling Method of providing a substrate with a patterned metal layer disposed thereon, wherein a patterned metal mask is employed in conjunction with ion milling to form the pattern in the metal layer on the substrate. The metal mask as contemplated herein is mad... | 07/04/1978 |
| 4097819 | Semiconductor laser A semiconductor laser has a semiconductor base having (100) orientation. A semiconductor mesa of a III-V material is grown on the base by liquid phase epitaxy. The semiconductor mesa has crystallographic facets perpendicular to the base and parallel to on... | 06/27/1978 |
| 4096581 | External drive coil magnetic bubble package A magnetic bubble domain package suitable for single or multiple chips in which the coil assembly for producing the rotating magnetic field necessary for bubble movement and logical operations to be performed on these chips comprises a pair of coils wound... | 06/20/1978 |
| 4072981 | Fast switching Darlington circuit A completely integrated npn Darlington stage is provided using an n-type film deposited on an n+ substrate. A p-type boron base is first partially diffused into the n layer, then an oxide window is cut into the oxide formed during the base diffusion, in t... | 02/07/1978 |
| 4070659 | Magnetic bubble domain memory chip with major/minor bubble path configuration Magnetic bubble domain memory circuit design in which magnetizable overlay patterns of magnetically soft material, e.g. permalloy, are provided on a magnetic bubble-supporting magnetic layer to define bubble propagation paths including transfer gate eleme... | 01/24/1978 |
