Matches 101 - 150 out of 208 < 1 2 3 4 5 >
Match Document Document Title
5990821 Detector apparatus  
Apparatus for detecting the presence of a speed detection system includes a microcontroller, a laser detector circuit coupled to the microcontroller, a radar detector circuit coupled to the...
5943002 Microwave detector for vehicles  
An open-space battery housing portion 9a is integrally formed in a portion of a connecting mechanism 11 of a device main body 1 to house a secondary battery 6 between a main circuit substrate 3 and...
5917441 Police radar detector for sweeping K and K.sub.A radar bands during one local oscillator sweep  
A frequency scheme for a police radar detector enables the K band and the K a band to be scanned during a single sweep of a local oscillator which drives a mixer at its fundamental operating mode...
5900832 Input stage for police radar detector including input signal preamplification  
An input stage for a police radar detector includes a single mixer together with at least one preamplifier to detect radar signals in the X, K and K a bands. A preamplifier may be used on the X...
5852417 Police radar detector including nuisance alert suppression  
A radar detector suppresses nuisance alerts due to detection of a third harmonic of a common LO signal of other radar detectors by detecting a second harmonic of the offending LO signal. If a...
5835052 Radar detector and the adjustment system and method thereof  
Disclosed is a radar detector for frequency sweeping a wide band range by using a VCO circuit to detect a radar signal, wherein the frequency precision of the received band can be improved by using...
5815092 Combined speed measuring device detector, speed measuring device and printer for verifying vehicle speed  
The disclosed device enables the user to verify the speed of their vehicle responsive to sensing that a speed measuring device has been used to measure their speed. The device includes a speed...
5784021 Noiseless radar detector  
A noiseless radar detector with a dielectric resonator to suppress stray electromagnetic radiation generated by a local oscillator within the radar detector is disclosed. The dielectric resonator...
5781145 Motorcycle mounted radar/laser speed detection countermeasure device  
A radar/laser speed detection countermeasure device for use on a motorcycle is disclosed which detects and annunciates radar and/or laser based speed detection devices in use in the immediate...
5717398 Automatically-actuated radar detector and solar power panel  
A radar detector apparatus, or a laser detector apparatus, or a combination radar/laser detector apparatus, has a solar power panel and a rechargeable battery. Additionally, circuitry is provided...
5684488 Rearview mirror mounted detection signal sensor system  
A speed detection signal sensor system for use with a vehicle. The system includes a signal sensing device positioned in a housing assembly. The housing assembly includes a reflective portion such...
5668554 Radar detector display  
A radar detector includes a graphical display for displaying a spectral representation of detected signals.
5666120 Detector apparatus  
Apparatus for detecting the presence of a speed detection system includes a microcontroller, a laser detector circuit coupled to the microcontroller, a radar detector circuit coupled to the...
5588057 Apparatus for defeating radar speed detection signals  
Acquisition and interpretation of reflections from a target in response to a Doppler radar probe signal from a seeker are inhibited by providing at the target a receiver, preferably a high-speed...
5550546 Advanced parameter encoder with dual integrated pulse present detection and channel/sector arbitration  
In a channelized receiver there is dual pulse present detection in which an RF signal is converted to a digital word and there are dual digital thresholds, each digital threshold having a...
5525989 Helmet and radar detector integration system  
A helmet and radar detector integration system comprising a radar laser detector. A structure is for mounting the radar laser detector onto a motorcycle. An impact resistant helmet is worn by a...
5510793 Combined radar detector, speed measuring device and printer for verifying vehicle speed  
The disclosed device enables the user to verify the speed of their vehicle responsive to sensing that a radar device has been used to measure their speed. The device includes a radar detector...
5461383 Wideband microwave detector  
A wideband microwave detector includes: a first local oscillator outputting a first local oscillation output containing a basic wave component, a secondary high harmonic component and a tertiary...
5446923 Mixer using fundamental frequency or second or third harmonic frequencies of a local oscillator for maximized resultant frequency mixer product  
A mixer is provided having a mixing element, an input signal port for incoming signals at a frequency f IN , a local oscillator signal port for signals from a local oscillator having a fundamental...
5394153 Compressive receiver having a plurality of RF inputs  
A compressive receiver of the type having a dispersive delay line is provided by an additional mixer which is responsive to the compressive receiver's local. oscillator and to an additional RF...
5389930 Power saving type multi-band microwave detector  
A power-saving type multi-band microwave detector is operable in a high sensitivity mode and a low sensitivity mode for achieving higher sensitivity for both non-modulated and modulated microwaves...
5363105 Structure of multi-band microwave detector  
A microwave detector comprises a one side opened hollow member having a first portion and a second portion, a printed circuit board, on which a metal layer is formed on one side, the metal layer on...
5361069 Airborne radar warning receiver  
An airborne radar warning receiver for track-while-scan radar including a first radar frequency receiver and logic circuitry for determining an increase in pulse rate frequency, second radar...
5349333 Threat sector indicating warner  
A warning apparatus for monitoring a plurality of threat sectors includes a receiving antenna for each threat sector for receiving electromagnetic radiation, an alarm channel for each respective...
5343207 Real-time wide-band compressive-receiver system  
The input ports (18) of an imaging compressive receiver (20) receive from a tapped delay line (16) progressively delayed versions of a received signal s(t). Because of the delays, a signal...
5341138 Structure of reception frequency converting portion in a multi-band microwave detector  
A structure of a reception frequency converting portion of a multi-band microwave detector, and including a microwave circuit comprises a horn antenna, two-port cavity integrally formed with the...
5323103 Frequency measurement receiver with means to resolve two folding frequencies of complex signals  
This is an arrangement to find two folding frequencies that fold into one frequency bin, which will save hardware. The input frequency in down converted into I and Q channels. Each channel requires...
5315302 Radar detector  
For receiving radar waves entering an antenna horn by the heterodyne method, the system is designed so that one of the local oscillation signals produced respectively by a local oscillator for the...
5305007 Wideband radar detector  
A wideband radar detection apparatus includes a signal detection section, high rate signal processing section and a low rate signal processing section. The signal detection section sweeps through a...
5300932 Motor vehicle police radar detector for detecting multiple radar sources  
A police radar signal detector detects and monitors radar signals from up to nine (9) radar sources until a detected radar signal has not been redetected for a given number of detector operations,...
5291203 Radar detection helmet  
A radar detection helmet is arranged to include radar circuitry, as well as a speaker member, mounted within the helmet, and further including a positionable light-emitting diode housing arranged...
5274379 Optical identification friend-or-foe  
An identification friend-or-foe system for vehicles wherein each vehicle is provided with a radiation transmitter and a receiver with a detector for detecting radiation transmitted by other...
5239296 Method and apparatus for receiving optical signals used to determine vehicle velocity  
Optical receiving system (20) and method are provided for receiving optical signals used to determine vehicle velocity. The receiver system (20) comprises an optical receiver unit (22) mounted on a...
5229540 Tank alerting system  
A low cost warning system for armored vehicles which uses multiple sensors ontaining detectors for IR and millimeter wave signals emanated by attacking missiles and/or projectiles to allow the...
5191348 Radar detector performance verification method and apparatus  
A method and apparatus for performing simple, rapid and accurate tests to determine the operational status of police band radar detecting equipment. A low-power, hand-held transmitter capable of...
5184138 Data distribution network  
The data distribution network (DDN) improves processing throughputs (eight million bytes per second) whenever high data rates of unsorted data are input to a processing system by combining...
5164729 Police radar warning receiver with auto-mute function  
A police radar warning receiver includes an auto-mute feature by which a driver may be alerted to the presence of police radar but without the annoyance of an unnecessarily prolonged audible alarm....
5151701 Police radar detectors for detecting radar signals and determining the directional origin of the signal source  
A police radar detector detects both the presence of radar signals incident upon a motor vehicle using the detector and also determines the direction of origin of the source of detected radar...
5146227 Sweeping receiver  
A radar detector including a local oscillator capable of sweeping over a frequency range of sufficient bandwidth to provide a fundamental frequency and, when injected into a multiplier/mixer,...
5134406 Long range police radar warning receiver with multiple array averaging  
A police radar warning receiver includes a DSP circuit having a correlator, multiple array averager and a peak detector to provide after each sweep of a swept local oscillator respective dynamic...
5122802 Automatic radar generator  
An autonomous radar transmitting system transmits radar signals which simulate the presence of a police- manned radar station. A system controller runs pseudo- randomizing programs to select signal...
5122801 Monitoring systems  
An aircraft threat monitoring system has several sensors responsive to a potential threat external to the aircraft such as a radar warning receiver, a radar sensor, a missile approach warning...
5111207 Bracket and assembly for remote mounting of police radar warning receiver  
A bracket and assembly for remotely mounting a radar detector includes a bracket that secures a license plate to a first end of the vehicle, with the radar detector supported therebetween and a...
5099243 Digital frequency measurement receiver with bandwidth improvement through multiple sampling of complex signals  
This is a technique for extending the frequency range which employs in-phase and quadrature components of the signal coupled with non-uniform sampling to gain the advantages of a high sampling rate...
5099194 Digital frequency measurement receiver with bandwidth improvement through multiple sampling of real signals  
This proposed approach to extending the frequency range uses non-uniform sampling to gain the advantages of a high sampling rate with only a modest increase in the number of samples. The basic idea...
5086300 Method and system for passive detection of electromagnetic events associated with destructive devices  
The apparatus of the invention detects, characterizes and evaluates electromagnetic radiation, primarily in the radio frequency range, which is emitted by the fusing portion of the explosive train...
5083129 Police radar detector for detecting radar signals and determining the directional origin of the signal source  
A police radar detector detects both the presence of radar signals incident upon a motor vehicle using the detector and also determines the direction of origin of the source of detected radar...
5068663 Motor vehicle radar detector including amplitude detection  
A radar detector for use in a motor vehicle employs amplitude detection to sense the presence of radar signals commonly used to monitor the speed of such motor vehicles. Amplitude signals are...
5063385 Radar warning receiver compressed memory histogrammer  
A memory system for histogramming the pulse descriptor word output of a radar warning receiver for initial processing of the received data for quickly determining the numbers and types of emitters...
5049884 Battery powered police radar warning receiver  
In a police radar warning receiver with a self-contained battery source of supply, battery life may be prolonged by duty cycling the RF front end circuitry of the receiver and, especially, the...
Matches 101 - 150 out of 208 < 1 2 3 4 5 >