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| Patent # | Description |
|---|---|
| US-5,689,270 |
Navigation and positioning system and method using uncoordinated becon
signals A positioning system uses a multiplicity of commercial broadcast stereo FM radio signal transmitters, at known fixed locations, each of which transmits a beacon... |
| US-5,689,269 |
GPS relative position detection system A system of devices both capable of receiving civilian GPS signals, but also capable of providing a relative distance and direction indication that is accurate... |
| US-5,689,268 |
Radar detection and classification of helicopters The blade flash signature in a radar return is enhanced and used to detect and classify helicopter targets. The radar return of a target is fast Fourier... |
| US-5,689,267 |
Automatic VSWR sensing for aircraft-mounted pulse radar systems An aircraft mounted pulse radar unit transmits a low-energy, test output pulse and processes the resulting test return signal to determine the VSWR and whether... |
| US-5,689,266 |
Testing apparatus for ATC transponder FAR compliance Airplanes have transponders which receive and transmit signals to communicate information regarding the flight of the airplane. A transponder testing apparatus... |
| US-5,689,265 |
Device for measuring a level of material using microwaves A level measuring device using microwaves comprises an antenna for sending transmitted waves toward the surface of a material whose level is to be measured, and... |
| US-5,689,264 |
Obstacle detecting system for vehicles An obstacle detection system for vehicles detects kinetic attributes relative to a vehicle equipped with the system of an object present in a forward path of... |
| US-5,689,263 |
Antipilferage markers An antipilferage tag is disclosed which includes a resonant circuit adapted to receive an RF signal and to transmit a response signal when interrogated by said... |
| US-5,689,262 |
Electronic baffle and baffle controlled microwave devices Microwave devices incorporate at least one photosensitive baffle that is selectively illuminated, changing the baffle's electronic characteristic from being... |
| US-5,689,261 |
Remote control system for ceiling fan and light An RF remote control system for operating a ceiling fan and its light is disclosed. The remote control system comprises a receiver and two remote controllers,... |
| US-5,689,260 |
Analog-to-digital converter using scaled signal to initialize coarse
conversion circuit An analog-to-digital converter includes a coarse conversion circuit, a fine conversion circuit, a scaling circuit, and a logic circuit. An analog input signal is... |
| US-5,689,259 |
Differental D/A converter with N-bits plus sign The present invention provides a digital-to-analog converter which uses two separate digital-to-analog converters for the first N-bits. The N+1 bit, which is the... |
| US-5,689,258 |
Multiple current digital-analog converter capable of reducing output
glitch A digital-analog converter has unit current source cells each having a differential switch circuit and a constant current source. The differential switch circuit... |
| US-5,689,257 |
Skewless differential switch and DAC employing the same A differential switch accepts a binary control signal and its complement (which may be skewed with respect to the control signal) and latches both signals... |
| US-5,689,256 |
Tree decoder Apparatus for decoding information which has been coded with a tree code including a tree decoder. The tree decoder includes a tree input port at which a token... |
| US-5,689,255 |
Method and apparatus for compressing and decompressing image data Image data such as text or half-tone images is compressed and decompressed. A compressor has three phases: a bit-run length phase that counts the length of each... |
| US-5,689,254 |
Decoding circuit for runlength codes After all the data words stored in a first scan transform RAM are initialized to "0"s, only signed level data words are overwritten, based on zero runlength data... |
| US-5,689,253 |
Ergonomic keyboard apparatus A keyboard for use with a standard personal computer includes an alphanumeric key array having a plurality of alphanumeric keys arranged in a generally... |
| US-5,689,252 |
Navigation system for an automotive vehicle A navigation system for an automotive vehicle designed to display a road map image around the vehicle in correlation with the current position of the automotive... |
| US-5,689,251 |
Airspeed prediction filter An air data computer outputs a data stream indicative of measured airspeed of an aircraft, for use in generating a display of airspeed to a pilot. To correct for... |
| US-5,689,250 |
Ultrasound obstacle detecting process The invention provides a process and apparatus for the detection of obstacles by means of ultrasound waves having an enhanced ability to distinguish between... |
| US-5,689,249 |
Off-lane alarm apparatus An off-lane alarm apparatus is disclosed in which upon the increase of the height of a pickup sensor mounted on a car, the increased portion is provided for an... |
| US-5,689,248 |
Methods for reducing power consumption in remote sensing applications The methods of this invention reduce the amount of power consumed by a remotely positioned (i.e. downhole) sensor/transmitter used in applications such as well... |
| US-5,689,247 |
Automated system for identifying authorized system users A method and apparatus for identifying authorized users of a secure system. A user of the secure system is prompted to enter a personal identification code which... |
| US-5,689,246 |
Intraoral communication system An intraoral interactive communication system wherein through a mouthpiece tongue pressure coded electrical signals are delivered to a processor. The mouthpiece... |
| US-5,689,245 |
Integrated communications terminal An electronic device for use as a communications terminal including means for determining a location of the electronic device, means for storing that location in... |
| US-5,689,244 |
Communication system and electronic apparatus A method of controlling communication for a communication system for connecting a plurality of electronic apparatuses through a communication control bus and... |
| US-5,689,243 |
System and method for tamper detection A system and method that provides an electronic indication that unauthorized access has been gained to a system. The mechanisms used by the present invention... |
| US-5,689,242 |
Connecting a portable device to a network A tag associated with a device and that identifies the device with respect to other devices is connected to a communication link with the same connector used to... |
| US-5,689,241 |
Sleep detection and driver alert apparatus A sleep detection and driver alert apparatus has a compact housing that can be placed around the rearview mirror or on the dashboard. It contains all lenses and... |
| US-5,689,240 |
Child monitor system A system that transmits and receives signals comprising a master unit and a remote unit, wherein a separation distance between the master unit and remote unit is... |
| US-5,689,239 |
Identification and telemetry system The present invention relates to a system for automated identification of articles such as baggage or carrier cargo wherein an electronic sub system called an... |
| US-5,689,238 |
Object locator system and methods therefor Methods and systems for locating objects are disclosed. An electronic tag is attached to an object before storing the object. The electronic tag is identifiable... |
| US-5,689,237 |
Antitheft security tag and electronic article surveillance security
system An antitheft security tag is used in combination with an article surveillance security system. The antitheft security tag comprises a tagging part to be tagged... |
| US-5,689,236 |
Remote garage door position indicator A remote garage door position indicator comprises a magnetic sensor device; a transmitter device being operatively coupled to the magnetic sensor device, the... |
| US-5,689,235 |
Electronic security system An electronic security system includes a detector (S1, S2) for detecting unauthorized entry of a trespasser into a predetermined outdoor area (A1) or an indoor... |
| US-5,689,234 |
Integrated firefighter safety monitoring and alarm system A system which allows the firefighter to monitor a variety of safety related parameters during firefighting activities through audible and/or visual means. The... |
| US-5,689,233 |
Emergency information offering system An emergency information offering system collects and offers information of lifeline facilities upon emergency properly by combining information infra-structures... |
| US-5,689,232 |
Vehicle signalling device A bicycle signalling device (1) has flexible arms (4) carrying lamps (5). The arms (4) are mounted on a holder (2) having spring clamps (3) for snap engagement... |
| US-5,689,231 |
Brake monitor A brake monitor for monitoring air brake adjustment as measured by push rod travel distance is comprised of a bracket straddling the push rod clevis of the brake... |
| US-5,689,230 |
Energy monitoring and control system using reverse transmission on AC
line An energy monitoring and control system (10) for use with a conventional AC source (12) having a hot wire and a neutral wire (28). The energy monitoring and... |
| US-5,689,229 |
Patient care and communication system The present invention relates to a patient care and communication system which utilizes a central processing system and a plurality of remote stations... |
| US-5,689,228 |
Parallel magnitude comparison using manchester carry chains Disclosed herein are methods and apparatus for performing magnitude comparisons within a shift-merge unit (SMU). A programmable or partially programmable... |
| US-5,689,227 |
Circuit board material with barrier layer A circuit board material is disclosed which includes a support layer, at least one electrical resistance layer having a preselected resistivity adhered to the... |
| US-5,689,225 |
Method for driving magneto-resistive element A method for driving a magneto-resistive effect element in which a bias magnetic field is applied by a bias conductor fed with a bias current to a ... |
| US-5,689,224 |
Reactor to modify environment and create electro-magnetic fields An apparatus and its mechanism, and more specifically to a reactor that comprehends in combination, one or several continuous walls made with glass and non... |
| US-5,689,223 |
Superconducting coil In order to make it possible to produce superconducting coils with small overall height, they are made from a plurality of coil subunits, optionally with a... |
| US-5,689,222 |
Electromagnetic relay and method for the production thereof An electromagnetic relay having a coil core which carries a coil. The coil is connected to one end to the short limb of an L-shaped magnet yoke, on a long limb... |
| US-5,689,221 |
Radio frequency filter comprising helix resonators The invention relates to a radio frequency filter comprising at least two helix resonators (HX1-HX2) placed at a distance from each other, each of which is wound... |
| US-5,689,220 |
Laterally coupled piezoelectric resonator ladder-type filter with at
least one width expansion mode resonator A ladder-type filter having a circuit structure obtained by connecting a plurality of series resonators and a plurality of parallel resonators with each other.... |
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