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Patent # Description
US-5,365,247 Transmitters and receivers with antennas
The invention concerns a combination of a transmitter/receiver (12, 13) having a predetermined frequency/wavelength and an antenna (15), the antenna comprising a...
US-5,365,246 Transmitting and/or receiving arrangement for portable appliances
An antenna for transmitter and receiver of a portable radio appliance (cordless telephone, mobile telephone, pager, telepoint appliance and so forth) essentially...
US-5,365,245 Hybrid orthogonal transverse electromagnetic fed reflector antenna
A hybrid orthogonal transverse electromagnetic fed reflector antenna is dlosed which comprises an electromagnetic reflector; a transverse electromagnetic...
US-5,365,244 Wideband notch radiator
An antenna element for radiating electromagnetic signals having a first and a second generally C-shaped groundplane that are formed of conductive material. The...
US-5,365,243 Planar waveguide for integrated transmitter and receiver circuits
A planar waveguide structure for mm-wave transmitters and receivers. The active semiconductor component elements and the planar waveguide with which they are...
US-5,365,242 Glass antenna for a telephone of an automobile
A glass antenna for a telephone of an automobile which comprises a main antenna conductor composed of a plurality of conductive strips extended radially from a...
US-5,365,241 Method and apparatus for performing planar near-field antenna measurement using bi-polar geometry
A planar near-field antenna measurement and diagnostic system is described which collects data on a bi-polar grid. The planar scanning is accomplished using...
US-5,365,240 Efficient driving circuit for large-current radiator
An improved driving circuit for a large-current radiator avoids the need to dissipate large powers in the driving circuit by drawing a certain energy value from...
US-5,365,239 Fiber optic feed and phased array antenna
A fiber optic feed includes an optical circuit for providing at least one optical output signal modulated according to an RF source and an antenna interface for...
US-5,365,238 Precision time measurements
A circuit arrangement that utilizes digital data representative of the amplitude of an RF pulse envelope is disclosed. The circuit arrangement comprises a PROM...
US-5,365,237 Microwave camera
A camera system in which microwave radiation from objects in a field-of-view is collected by an antenna having beam directions which are a function of the beam...
US-5,365,236 Automatic global radar/IR/Esm track association based on ranked candidate pairings and measures of their proximity
A tri-sensor track association based on ranked candidate pairs and measures of their proximity is described. The track association employs a three dimensional...
US-5,365,235 Method and apparatus for reducing residual RF power in a transmitter/receiver antenna
A method and apparatus for interrogating a transponder using a single transmitter-receiver antenna transmits an interrogation signal to the transponder. The...
US-5,365,234 High-resolution sidelobe-canceller auxiliary antennas
A sidelobe canceller system utilizing directional auxiliary antennas and e delays allows the spacing between the auxiliary antennas and a main radar antenna to...
US-5,365,233 Method for digitizing a band-limited, analog signal, analog-digital processing unit to implement the method, a...
An analog-digital processing unit including an amplifier with amplification that is adjustable in stages, and a quantizer outlet connected downstream of the...
US-5,365,232 Data conversion method, pilot signal formation method using the same and rotary magnetic head device for use...
A data conversion method from m bits of data words into n bits of code words in recording or transmission, in which n is larger than m. A number of bit "0"...
US-5,365,231 Encoding apparatus for digital signal with improved block channel coding
An encoder separates an input digital signal including m bits into the first group and the second group, and encodes each piece of data in the first group to a...
US-5,365,230 Inductively coupled keyboard
A self-contained keyboard for computer transmits keystroke data to a host computer via scan codes encoded in a variable magnetic field. In a preferred embodiment...
US-5,365,229 Adaptive telemetry system for hostile environment well logging
The operation of hostile environment logging tools at temperatures up to 250.degree. C. stresses not only the tools, it also places severe demands upon the...
US-5,365,228 SYNC-NET- a barrier synchronization apparatus for multi-stage networks
A SYNC-NET apparatus synchronizes processor nodes of a parallel system over a multi-stage communication network that normally transmits data between nodes as...
US-5,365,227 Method and apparatus for transmitting status information from a selective call receiver to an external...
A selective call receiver (100) for transmitting information to an external electronic device (208), such as a personal computer, includes a memory (125) for...
US-5,365,226 Radio communication apparatus capable of preventing unintentional display operation
In a radio communication apparatus having an individual call number for use in receiving a call signal and a message signal representing a message and following...
US-5,365,225 Transmitter-receiver system with (re-)initialization
A transmitter-receiver system (FIGS. 1 and 2), which checks the authorization to use an object (O), contains a transmitter (S), which has a transmitting element...
US-5,365,224 Error recovery arrangement in a time division multiplex data transmission system
A system for defining and controlling data transmissions in a multiplexing system having a host controller in bi-directional communication with a plurality of...
US-5,365,223 Fail-safe condition sensing circuit
A circuit for detecting whether the level of an electrical signal having a preselected polarity is above a preselected value, is powered by DC of the opposite...
US-5,365,222 Method and detector for detecting surface roughness or defects on coated wire or cable
A method and detector are provided for accurately and continuously detecting surface roughness or oversize defects on coated wire or cable, such as magnet wire....
US-5,365,221 Computer card having low battery indicator
A battery powered electronic device (105) for coupling to a host computer (205 ) comprises an interface (115) for transmitting data and an annunciator (340) for...
US-5,365,220 Warning alarm device for an evaporative cooler
A warning device is disclosed for an evaporative cooler or swamp cooler. The alarm comprises a pair of closely spaced electrodes mounted at a desired position...
US-5,365,219 Conversation level warning device
A method and apparatus are provided for warning when the amplitude of conversations exceeds certain values. The apparatus includes a microphone and related...
US-5,365,218 System for guarding property including a mobile laser unit
Buildings, vehicles, and persons are protected by means of a laser monitoring device consisting of a laser transmitter and receiver and an associated evaluation...
US-5,365,217 Personal security system apparatus and method
A method and apparatus for monitoring safety of persons within a predetermined area includes personal transmitters for wirelessly transmitting distress signals,...
US-5,365,216 Catalyst monitoring using ego sensors
A method of monitoring, while on board an automotive vehicle, one or more of catalyst performance, engine misfire, and combustion quality, the vehicle having an...
US-5,365,215 Vehicle steering lock with audible signal
An anti-theft device for attachment to a steering wheel of a vehicle and comprising telescoping components relatively displaceable between extended and retracted...
US-5,365,214 Musical wireless alerting system
The musical wireless alerting system includes several detectors (12) which transmit rf signals to a common receiver (14). The detectors (12) include manual...
US-5,365,213 Warning device
A warning apparatus includes a body member for disposal around at least a portion of the hand and the wrist; a warning member for emitting a warning signal...
US-5,365,212 Magnetoresistance effect element
A magnetoresistance effect element includes a multilayer in which magnetic layers, mixture layers each constituted by a mixture of a ferromagnetic element and a...
US-5,365,211 Wound coil with integral cooling passages
A magneto repulsion electrical tape wound coil has been developed with improved current distribution and improved heat transfer. The coil is easy and is...
US-5,365,210 Latching solenoid with manual override
A latching solenoid device comprising an encasement, a portion of which is manually translatable in order to vary reluctance in a magnetic circuit which extends...
US-5,365,209 Dielectric filters and duplexers incorporating same
Coaxial resonators serving as input and output stages are arranged on a dielectric substrate having input and output coupling strip lines and a grounding...
US-5,365,208 Microwave stripline filter formed from a pair of dielectric substrates
A microwave strip line filter has a pair of dielectric substrates being stacked and bonded to each other, which are similar in pattern but different in...
US-5,365,207 Multi-bandwidth saw filter
A multi-bandwidth SAW filter for an input signal is provided which includes an SAW transducer having a selectable length corresponding to the desired bandwidth...
US-5,365,206 Surface acoustic wave reflector filter having z-shaped propagation paths
A surface-wave filter in which the acoustic wavepath is reflected in order to reduce the substrate size necessary. The reflections are chosen so that ...
US-5,365,205 Backplane databus utilizing directional couplers
A backplane databus and bussing method provide multidrop signal distribution using capacitive and inductive coupling of a main signal. A main signal loop on the...
US-5,365,204 CMOS voltage controlled ring oscillator
A variable frequency digital ring oscillator which can be formed in a small area for use in testing of chips employs a ring oscillator formed of CMOS inverters,...
US-5,365,203 Delay line device and method of manufacturing the same
A delay line device comprises first and second substrates. The first substrate has a signal line centrally formed on one of main surfaces of a ceramic substrate,...
US-5,365,202 PLL frequency synthesizer using plural phase comparisons
In a phase locked loop frequency synthesizer having multiple feedback loops, a reference phase signal is developed into two signals having a frequency twice as...
US-5,365,201 Power supply interruption circuit for an audio power amplifier
This invention provides an automatic current interruption to protect the audio power amplifier circuitry when current conditions above the capacity of the power...
US-5,365,200 CMOS gauge driver
An integrated circuit apparatus comprises a first stage amplifier and a second stage amplifier. The first stage amplifier is characterized by a cross-coupled...
US-5,365,199 Amplifier with feedback having high power supply rejection
A class A amplifier (20) includes an amplifier (21), a capacitor (22), and an output stage (23). The output stage (23) includes a source-follower transistor (24)...
US-5,365,198 Wideband amplifier circuit using npn transistors
A wideband amplifier circuit provides high current gain and a wide bandwidth by employing only npn transistors, which have better high-frequency characteristics...
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