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| Patent # | Description |
|---|---|
| US-5,581,252 |
Analog-to-digital conversion using comparator coupled capacitor
digital-to-analog converters An analog-to-digital converter circuit (ADC) is described which comprises capacitor based digital-to-analog converter circuits (CDACs) coupled to the inputs of a... |
| US-5,581,251 |
High visibility lightpipe in close proximity to function key A lighted keyboard system which transmits light to the viewer via a clear rectangular column that uses the function key's guiding mechanism for support. The... |
| US-5,581,250 |
Visual collision avoidance system for unmanned aerial vehicles A collision avoidance ability for UAV (42) during its non-VFR pre-programmed autonomous flight is achieved by using a forward-looking TV camera (20) which senses... |
| US-5,581,249 |
Mobile communication system A mobile communication system for highway toll charging and the like includes road-side units which periodically poll vehicle-mounted units. When traffic near a... |
| US-5,581,248 |
Embeddable device for contactless interrogation of sensors for smart
structures Sensing device for a sensor embeddable in a structure comprising: an insulative substrate, a circuit pattern disposed on the substrate for interconnecting a... |
| US-5,581,247 |
Fast technique for converting sampled analog measurements of a physical
quantity to values expressed in... An engineering unit converter system for converting an analog measurement into an engineering value. An analog measurement of a physical quantity is transformed... |
| US-5,581,246 |
Multiple device control system A train communication and control system is described having the cars of the train connected by a two-wire train line running continuously from car to car. Each... |
| US-5,581,245 |
Paging system control apparatus In a paging system control apparatus that employs a POCSAG signal consisting of a plurality of batches each consisting of a plurality of groups, it is intended... |
| US-5,581,244 |
Paging message processing A mobile station, i.e., mobile phone included in a cellular telephone system processes paging messages using a dual-port RAM memory connected between a signal... |
| US-5,581,243 |
Method and apparatus for displaying simulated keyboards on
touch-sensitive displays A phantom keyboard is formed on a touch sensitive display as an input tool for a computer. The keyboard is superimposed on, though does not occlude from view, an... |
| US-5,581,242 |
Automatic alarm display processing system in plant An alarm system in a plant for outputting a plurality of alarms with respect to devices constituting the plant and monitor information with respect to the... |
| US-5,581,241 |
Ultra-sensitive smoke detector A smoke detector that operates on the principle of scattered light is disclosed that has the capability of an operating sensitivity that is tens of times greater... |
| US-5,581,240 |
Process and system for controlling a windshield wiper, particulary for a
motor vehicle A process and a system for controlling a windshield wiper, in particular on a motor vehicle, in which a rain sensor is located on the glass to be wiped and... |
| US-5,581,239 |
Wake-up device A wake-up device including a first flexible headband formed with a battery chamber, a second flexible headband, first oscillating means connected with an end of... |
| US-5,581,238 |
Pacifier with fever heat alarm device An improved pacifier for a baby which is equipped with a chip-style thermo-sensitive resistor at the tip of the nipple thereof for detecting the oral temperature... |
| US-5,581,237 |
Microwave intrusion detector with threshold adjustment in response to
periodic signals A microwave intrusion detector is provided with a periodic signal detector that identifies periodic signals not typical of an intrusion and adjusts the alarm... |
| US-5,581,236 |
Methods and apparatus for intrusion detection having improved immunity
to false alarms A multisensor intrusion detection system having greatly improved immunity to false alarms is disclosed. This system employs a first sensor for sensing an... |
| US-5,581,235 |
Turn signal control system A control system controls the vehicle having turn signal lights mounted on both sides of the vehicle in response to deflection of a manually operated turn... |
| US-5,581,234 |
Infant vehicle seat alarm system An infant seat/carrier alarm system designed to produce an audible or visual warning when the seat/carrier component is initially aligned on the base component,... |
| US-5,581,233 |
Vehicle door lock, shift lever interlock system A put-in-park alarm which is energized whenever an automatic shift vehicle is stopped but the shift lever is not in park. The put-in-park alarm is energized when... |
| US-5,581,232 |
Ultrasonic wave reception apparatus and obstacle detection apparatus An obstacle detection apparatus includes a rubber-like elastic body interspersed with electroconductive particles, and means for applying a voltage to the... |
| US-5,581,231 |
Anti-theft protection system An anti-theft protection system comprises a battery having a series of cells and at least one terminal. The series of cells and the at least one terminal have an... |
| US-5,581,230 |
Illuminated door handle assembly An illuminated door handle assembly includes a door handle seamed to a door at a defined location and moveable between latching and unlatching positions, a... |
| US-5,581,229 |
Communication system for a power distribution line The invention provides a layered modulation data communication systems characterized by numerous, asynchronous data transmitters operating on a power line. Data... |
| US-5,581,228 |
Digital signal comparison circuit in a performance monitoring and test
system A DS3 level access, monitor and test system including a digital comparator for a telephone network. A high speed bit-for-bit compare is interfaced to a protect... |
| US-5,581,227 |
Hybrid circuit having ceramic strip to increase loading capacity A hybrid circuit unit having a film resistor on a circuit carrier and a ceramic stripe having an area of at least approximately the same size as the film... |
| US-5,581,226 |
High pressure sensor structure and method A high pressure sensor structure (11, 111, 211) includes a housing (12, 112, 212) having an upper cavity portion (13, 113, 213) and a lower cavity portion (16,... |
| US-5,581,225 |
One-piece female blade fuse with housing A female fuse assembly includes a female fuse and a housing. The female fuse includes a first and a second female terminal portion each having a face portion... |
| US-5,581,224 |
Choke coil for eliminating common mode noise and differential mode noise A choke coil which functions not only to eliminate common mode noise but also to eliminate differential mode noise. A couple of coils are wound around a circular... |
| US-5,581,223 |
Superconducting magnet A superconducting magnet for producing a uniform magnetic field, including a main coil comprising first superconducting coils, and active shield comprising... |
| US-5,581,222 |
Solenoid valve assembly with rapid connection clip A solenoid valve assembly having a rapid assembly clip. The clip is a spring clip which is pivotally secured to a housing for the solenoid valve assembly. The... |
| US-5,581,221 |
Electrophotographic image forming apparatus A copying machine wherein a developing device is provided with a first sensor for detecting the toner density in a developer and a second sensor which is... |
| US-5,581,220 |
Variable profile superconducting magnetic coil Double pancake coils include a pair of pancake coils of different dimensions, and are wound from the same continuous length of superconducting wire. The double... |
| US-5,581,219 |
Circuit breaker A circuit breaker comprises a container made of electrically insulating material, the container being constituted by a casing and a cover; a switching mechanism... |
| US-5,581,218 |
Circuit breaker A circuit breaker 10 includes a housing and an operating mechanism 12 contained within the housing. An indicating arrangement is carried by the operating... |
| US-5,581,217 |
Microwave shielding structures comprising parallel-plate waveguide Shielding structures are provided for microwave circuits with substrate members and shield members which are formed from conventional substrates. The shield... |
| US-5,581,216 |
Low jitter voltage controlled oscillator (VCO) circuit A voltage controlled oscillator circuit includes a predetermined number of interconnected differential comparator cells having source connected p-channel and... |
| US-5,581,215 |
Voltage controlled oscillator having frequency and amplitude controlling
loops A voltage controlled oscillator that completely eliminates the need for any externally mounted coil and capacitor includes a first loop and a second loop. The... |
| US-5,581,214 |
Phase-locked loop circuit A timing generating circuit (9) receives a reference signal (f.sub.REF) and an operation control signal (S.sub.0) as inputs and outputs a generation control... |
| US-5,581,213 |
Variable gain amplifier circuit A non-attenuating automatic variable gain amplifier (VGA) circuit includes an operational amplifier (op amp) with a feedback resistor connected between its... |
| US-5,581,212 |
Fully differential CMOS transconductance-transimpedance wide-band
amplifier A fully differential, wide-band transconductance-transimpedance amplifier with a tuneable gain is disclosed. The amplifier includes a transconductance stage for... |
| US-5,581,211 |
Squaring circuit capable of widening a range of an input voltage In a squaring circuit which responds to an input voltage to produce an output current and which is specified by a squaring characteristic between the input... |
| US-5,581,210 |
Analog multiplier using an octotail cell or a quadritail cell A multiplier in which simplification of a circuit configuration and reduction of a current consumption can be realized. There are provided with first, second,... |
| US-5,581,209 |
Adjustable current source An output driver circuit for an integrated circuit is disclosed, where the output driver drives an output terminal with a high logic level having a voltage... |
| US-5,581,208 |
Switching arrangement in motor vehicles for the timed switching-on of
inductive consuming devices A switching arrangement in motor vehicles for the timed switching-on of inductive consuming devices by a semiconductor power switch timed by a control source has... |
| US-5,581,207 |
Synchronous delay line An improved high precision synchronous delay line featuring propagation control circuitry in the voltage controlled delay line removing skew between a pair of... |
| US-5,581,206 |
Power level detection circuit A level detection circuit for monitoring the level of a power supply voltage and producing an output signal at power on for resetting various system elements... |
| US-5,581,205 |
Semiconductor device capable of assembling adjacent sub chips into one
chip In a semiconductor device, a chip is constructed by a plurality of sub chips adjacent to each other on a wafer, each of the sub chips being able to carry out the... |
| US-5,581,204 |
Pulse width measurement circuit A pulse width measurement circuit is provided, comprising (i) a comparator circuit for receiving a pulse, the time duration of which is to be measured, and for... |
| US-5,581,203 |
Semiconductor read-only VLSI memory The performance of a very large scale integrated READ ONLY MEMORY circuit is improved by improvements in various circuits and methodologies utilized in the... |
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