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[Search a list of Patent Appplications for class 342]  Class   342COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION)
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[List of Patents for class 342 subclass 1]  1           RADIO WAVE ABSORBER
[List of Patents for class 342 subclass 2]  2           Subclass 2 indent level is 1 For aircraft or missile
[List of Patents for class 342 subclass 3]  3           Subclass 3 indent level is 1 For camouflage
[List of Patents for class 342 subclass 4]  4           Subclass 4 indent level is 1 With particular geometric configuration
[List of Patents for class 342 subclass 5]  5           RADAR REFLECTOR
[List of Patents for class 342 subclass 6]  6           Subclass 6 indent level is 1 With modulation
[List of Patents for class 342 subclass 7]  7           Subclass 7 indent level is 1 Corner
[List of Patents for class 342 subclass 8]  8           Subclass 8 indent level is 2 Inflatable or collapsable
[List of Patents for class 342 subclass 9]  9           Subclass 9 indent level is 2 Decoy or tow target
[List of Patents for class 342 subclass 10]  10           Subclass 10 indent level is 1 Inflatable or collapsable
[List of Patents for class 342 subclass 11]  11           Subclass 11 indent level is 1 With spherical lens (e.g., Luneberg lens)
[List of Patents for class 342 subclass 12]  12           Subclass 12 indent level is 1 Chaff
[List of Patents for class 342 subclass 13]  13           RADAR EW (ELECTRONIC WARFARE)
[List of Patents for class 342 subclass 14]  14           Subclass 14 indent level is 1 ECM (Electronic countermeasures, i.e., jamming)
[List of Patents for class 342 subclass 15]  15           Subclass 15 indent level is 2 With repeater
[List of Patents for class 342 subclass 16]  16           Subclass 16 indent level is 1 ECCM (Electronic counter-countermeasures, i.e., antijamming)
[List of Patents for class 342 subclass 17]  17           Subclass 17 indent level is 2 Radar reacts to jamming
[List of Patents for class 342 subclass 18]  18           Subclass 18 indent level is 3 By changing frequency
[List of Patents for class 342 subclass 19]  19           Subclass 19 indent level is 3 By varying gain or blocking receiver
[List of Patents for class 342 subclass 20]  20           Subclass 20 indent level is 1 Detection of surveilance
[List of Patents for class 342 subclass 21]  21           BASE BAND SYSTEM
[List of Patents for class 342 subclass 22]  22           TRANSMISSION THROUGH MEDIA OTHER THAN AIR OR FREE SPACE
[List of Patents for class 342 subclass 23]  23           BERTHING OR DOCKING
[List of Patents for class 342 subclass 24]  24           BLIND AID
[List of Patents for class 342 subclass 25]  25           SYNTHETIC APERTURE RADAR
[List of Patents for class 342 subclass 26]  26           WEATHER RADAR
[List of Patents for class 342 subclass 27]  27           PRESENCE DETECTION ONLY
[List of Patents for class 342 subclass 28]  28           Subclass 28 indent level is 1 By motion detection
[List of Patents for class 342 subclass 29]  29           AIRCRAFT COLLISION AVOIDANCE SYSTEM (CAS)
[List of Patents for class 342 subclass 30]  30           Subclass 30 indent level is 1 With transponder
[List of Patents for class 342 subclass 31]  31           Subclass 31 indent level is 2 Including synchronized clock
[List of Patents for class 342 subclass 32]  32           Subclass 32 indent level is 2 Included in Secondary Surveilance Radar (SSR) or Air Traffic Control Radio Beacon System (ATCRBS)
[List of Patents for class 342 subclass 33]  33           AIRCRAFT LANDING SYSTEM
[List of Patents for class 342 subclass 34]  34           Subclass 34 indent level is 1 Ground control approach (GCA)
[List of Patents for class 342 subclass 35]  35           Subclass 35 indent level is 1 Microwave landing system (MLS)
[List of Patents for class 342 subclass 36]  36           AIR TRAFFIC CONTROL
[List of Patents for class 342 subclass 37]  37           Subclass 37 indent level is 1 Secondary Surveilance Radar (SSR) or Air Traffic Control Radar Beacon System (ATCRBS)
[List of Patents for class 342 subclass 38]  38           Subclass 38 indent level is 2 With altitude information
[List of Patents for class 342 subclass 39]  39           Subclass 39 indent level is 2 With side lobe suppression
[List of Patents for class 342 subclass 40]  40           Subclass 40 indent level is 2 With defruiting or degarbling
[List of Patents for class 342 subclass 41]  41           SHIP COLLISION AVOIDANCE
[List of Patents for class 342 subclass 42]  42           RADAR TRANSPONDER SYSTEM
[List of Patents for class 342 subclass 43]  43           Subclass 43 indent level is 1 Combined with primary radar system
[List of Patents for class 342 subclass 44]  44           Subclass 44 indent level is 1 Unique identity
[List of Patents for class 342 subclass 45]  45           Subclass 45 indent level is 1 IFF or SIF
[List of Patents for class 342 subclass 46]  46           Subclass 46 indent level is 1 Navigational
[List of Patents for class 342 subclass 47]  47           Subclass 47 indent level is 2 Distance measuring equipment (DME)
[List of Patents for class 342 subclass 48]  48           Subclass 48 indent level is 3 With automatic lock-on
[List of Patents for class 342 subclass 49]  49           Subclass 49 indent level is 3 With VOR/TACAN
[List of Patents for class 342 subclass 50]  50           Subclass 50 indent level is 1 With Telemetry
[List of Patents for class 342 subclass 51]  51           Subclass 51 indent level is 1 Transponder only
[List of Patents for class 342 subclass 52]  52           COMBINED WITH DIVERSE TYPE RADIANT ENERGY SYSTEM
[List of Patents for class 342 subclass 53]  53           Subclass 53 indent level is 1 With infrared device
[List of Patents for class 342 subclass 54]  54           Subclass 54 indent level is 1 With laser
[List of Patents for class 342 subclass 55]  55           Subclass 55 indent level is 1 With television
[List of Patents for class 342 subclass 56]  56           Subclass 56 indent level is 1 With direction finding
[List of Patents for class 342 subclass 57]  57           Subclass 57 indent level is 1 With radio voice communication
[List of Patents for class 342 subclass 58]  58           Subclass 58 indent level is 1 With transmission to a remote station
[List of Patents for class 342 subclass 59]  59           PLURAL RADAR
[List of Patents for class 342 subclass 60]  60           TRANSMITTING INTELLIGENCE
[List of Patents for class 342 subclass 61]  61           RETURN SIGNAL CONTROLS EXTERNAL DEVICE
[List of Patents for class 342 subclass 62]  62           Subclass 62 indent level is 1 Missile or spacecraft guidance
[List of Patents for class 342 subclass 63]  63           Subclass 63 indent level is 1 Aircraft guidance
[List of Patents for class 342 subclass 64]  64           Subclass 64 indent level is 2 With map matching
[List of Patents for class 342 subclass 65]  65           Subclass 65 indent level is 2 With terrain avoidance or alarm
[List of Patents for class 342 subclass 66]  66           Subclass 66 indent level is 1 Camera
[List of Patents for class 342 subclass 67]  67           Subclass 67 indent level is 1 Gun (e.g., fire control)
[List of Patents for class 342 subclass 68]  68           Subclass 68 indent level is 1 Proximity fuze
[List of Patents for class 342 subclass 69]  69           Subclass 69 indent level is 1 Device actuated by presence of land vehicle
[List of Patents for class 342 subclass 70]  70           Subclass 70 indent level is 1 Radar mounted on and controls land vehicle
[List of Patents for class 342 subclass 71]  71           Subclass 71 indent level is 2 With control of brakes or steering
[List of Patents for class 342 subclass 72]  72           Subclass 72 indent level is 2 With control of safety device (e.g., air bags)
[List of Patents for class 342 subclass 73]  73           RETURN SIGNAL CONTROLS RADAR SYSTEM
[List of Patents for class 342 subclass 74]  74           Subclass 74 indent level is 1 Antenna control
[List of Patents for class 342 subclass 75]  75           Subclass 75 indent level is 2 Physical orientation
[List of Patents for class 342 subclass 76]  76           Subclass 76 indent level is 3 With ground tracking
[List of Patents for class 342 subclass 77]  77           Subclass 77 indent level is 3 With signal error correction
[List of Patents for class 342 subclass 78]  78           Subclass 78 indent level is 3 Conical scan
[List of Patents for class 342 subclass 79]  79           Subclass 79 indent level is 3 Lobe switching
[List of Patents for class 342 subclass 80]  80           Subclass 80 indent level is 3 Monopulse
[List of Patents for class 342 subclass 81]  81           Subclass 81 indent level is 2 Beam direction by phase or frequency control
[List of Patents for class 342 subclass 82]  82           Subclass 82 indent level is 1 Transmitter
[List of Patents for class 342 subclass 83]  83           Subclass 83 indent level is 2 Signal phase or frequency other than pulse repetition frequency (PRF)
[List of Patents for class 342 subclass 84]  84           Subclass 84 indent level is 3 Function of doppler frequency
[List of Patents for class 342 subclass 85]  85           Subclass 85 indent level is 3 Function of distance
[List of Patents for class 342 subclass 86]  86           Subclass 86 indent level is 4 With constant phase
[List of Patents for class 342 subclass 87]  87           Subclass 87 indent level is 4 With constant beat frequency
[List of Patents for class 342 subclass 88]  88           Subclass 88 indent level is 2 Transmission timing (e.g., ring around)
[List of Patents for class 342 subclass 89]  89           Subclass 89 indent level is 1 Receiver
[List of Patents for class 342 subclass 90]  90           Subclass 90 indent level is 2 Automatic target detection
[List of Patents for class 342 subclass 91]  91           Subclass 91 indent level is 2 Gain or threshold
[List of Patents for class 342 subclass 92]  92           Subclass 92 indent level is 3 Automatic gain control (AGC)
[List of Patents for class 342 subclass 93]  93           Subclass 93 indent level is 3 Constant false alarm rate (CFAR)
[List of Patents for class 342 subclass 94]  94           Subclass 94 indent level is 2 Gating
[List of Patents for class 342 subclass 95]  95           Subclass 95 indent level is 3 Automatic range tracking
[List of Patents for class 342 subclass 96]  96           Subclass 96 indent level is 4 Automatic track while scan (ATWS)
[List of Patents for class 342 subclass 97]  97           Subclass 97 indent level is 4 With automatic lock-on
[List of Patents for class 342 subclass 98]  98           Subclass 98 indent level is 2 Frequency
[List of Patents for class 342 subclass 99]  99           Subclass 99 indent level is 3 Doppler frequency tracking
[List of Patents for class 342 subclass 100]  100           Subclass 100 indent level is 4 Wtih local osillator control
[List of Patents for class 342 subclass 101]  101           Subclass 101 indent level is 4 With filter control
[List of Patents for class 342 subclass 102]  102           Subclass 102 indent level is 3 Phase
[List of Patents for class 342 subclass 103]  103           Subclass 103 indent level is 4 Phase locked loop
[List of Patents for class 342 subclass 104]  104           DETERMINING VELOCITY
[List of Patents for class 342 subclass 105]  105           Subclass 105 indent level is 1 Other than doppler (e.g., range rate)
[List of Patents for class 342 subclass 106]  106           Subclass 106 indent level is 1 Combined with determining acceleration
[List of Patents for class 342 subclass 107]  107           Subclass 107 indent level is 1 Combined with determining distance and direction
[List of Patents for class 342 subclass 108]  108           Subclass 108 indent level is 2 With correlation
[List of Patents for class 342 subclass 109]  109           Subclass 109 indent level is 1 Combined with determining distance
[List of Patents for class 342 subclass 110]  110           Subclass 110 indent level is 2 With plural fixed range gates
[List of Patents for class 342 subclass 111]  111           Subclass 111 indent level is 2 With plural receiver frequency band separation
[List of Patents for class 342 subclass 112]  112           Subclass 112 indent level is 2 With plural frequencies transmission
[List of Patents for class 342 subclass 113]  113           Subclass 113 indent level is 1 Combined with determining direction (i.e., bearing)
[List of Patents for class 342 subclass 114]  114           Subclass 114 indent level is 1 Combined with determining sense of motion (i.e., approaching or receding)
[List of Patents for class 342 subclass 115]  115           Subclass 115 indent level is 1 Digital
[List of Patents for class 342 subclass 116]  116           Subclass 116 indent level is 1 With plural received frequency band separation
[List of Patents for class 342 subclass 117]  117           Subclass 117 indent level is 1 With plural beams (e.g., "Janus")
[List of Patents for class 342 subclass 118]  118           DETERMINING DISTANCE
[List of Patents for class 342 subclass 119]  119           Subclass 119 indent level is 1 Miss distance indicator (MDI)
[List of Patents for class 342 subclass 120]  120           Subclass 120 indent level is 1 Altimeter
[List of Patents for class 342 subclass 121]  121           Subclass 121 indent level is 2 With additional indicator
[List of Patents for class 342 subclass 122]  122           Subclass 122 indent level is 2 FM type
[List of Patents for class 342 subclass 123]  123           Subclass 123 indent level is 1 Height finder
[List of Patents for class 342 subclass 124]  124           Subclass 124 indent level is 1 Material level within container
[List of Patents for class 342 subclass 125]  125           Subclass 125 indent level is 1 With remote cooperating station
[List of Patents for class 342 subclass 126]  126           Subclass 126 indent level is 1 Triangulation
[List of Patents for class 342 subclass 127]  127           Subclass 127 indent level is 1 Phase comparison
[List of Patents for class 342 subclass 128]  128           Subclass 128 indent level is 1 With frequency modulation
[List of Patents for class 342 subclass 129]  129           Subclass 129 indent level is 2 Plural frequencies transmitted
[List of Patents for class 342 subclass 130]  130           Subclass 130 indent level is 2 Plural modulation
[List of Patents for class 342 subclass 131]  131           Subclass 131 indent level is 3 Combined with pulse modulation (e.g., frequency agile)
[List of Patents for class 342 subclass 132]  132           Subclass 132 indent level is 4 With pulse modulation (e.g., "Chirp")
[List of Patents for class 342 subclass 133]  133           Subclass 133 indent level is 2 Combined with determining direction
[List of Patents for class 342 subclass 134]  134           Subclass 134 indent level is 1 With pulse modulation
[List of Patents for class 342 subclass 135]  135           Subclass 135 indent level is 2 Digital (e.g., with counter)
[List of Patents for class 342 subclass 136]  136           Subclass 136 indent level is 3 With plural fixed range gates
[List of Patents for class 342 subclass 137]  137           Subclass 137 indent level is 2 With variable pulse repetition frequency (PRF) or pulse width
[List of Patents for class 342 subclass 138]  138           Subclass 138 indent level is 2 With type "A" or "J" range scope
[List of Patents for class 342 subclass 139]  139           Subclass 139 indent level is 2 Combined with determining direction
[List of Patents for class 342 subclass 140]  140           Subclass 140 indent level is 3 With azimuth and elevation determination
[List of Patents for class 342 subclass 141]  141           Subclass 141 indent level is 3 Off boresight
[List of Patents for class 342 subclass 142]  142           Subclass 142 indent level is 3 With CRT display
[List of Patents for class 342 subclass 143]  143           Subclass 143 indent level is 4 Plural
[List of Patents for class 342 subclass 144]  144           Subclass 144 indent level is 4 PPI type
[List of Patents for class 342 subclass 145]  145           Subclass 145 indent level is 1 With correlation
[List of Patents for class 342 subclass 146]  146           Subclass 146 indent level is 1 Combined with determining direction
[List of Patents for class 342 subclass 147]  147           DETERMINING DIRECTION
[List of Patents for class 342 subclass 148]  148           Subclass 148 indent level is 1 Low angle processing
[List of Patents for class 342 subclass 149]  149           Subclass 149 indent level is 1 Monopulse
[List of Patents for class 342 subclass 150]  150           Subclass 150 indent level is 2 With common IF channel
[List of Patents for class 342 subclass 151]  151           Subclass 151 indent level is 2 With channel equalization
[List of Patents for class 342 subclass 152]  152           Subclass 152 indent level is 2 With quadrature difference processing
[List of Patents for class 342 subclass 153]  153           Subclass 153 indent level is 2 With particular antenna or waveguide
[List of Patents for class 342 subclass 154]  154           Subclass 154 indent level is 2 Combined with beam steering
[List of Patents for class 342 subclass 155]  155           Subclass 155 indent level is 1 Lobe switching
[List of Patents for class 342 subclass 156]  156           Subclass 156 indent level is 1 Interferometer
[List of Patents for class 342 subclass 157]  157           Subclass 157 indent level is 1 With frequency or phase steering
[List of Patents for class 342 subclass 158]  158           Subclass 158 indent level is 1 Scanning
[List of Patents for class 342 subclass 159]  159           CLUTTER ELIMINATION
[List of Patents for class 342 subclass 160]  160           Subclass 160 indent level is 1 MTI (Moving target indicator)
[List of Patents for class 342 subclass 161]  161           Subclass 161 indent level is 2 With vehicle movement compensation (e.g., AMTI (Airborn MTI))
[List of Patents for class 342 subclass 162]  162           Subclass 162 indent level is 2 Digital
[List of Patents for class 342 subclass 163]  163           Subclass 163 indent level is 2 With blind speed elimination
[List of Patents for class 342 subclass 164]  164           Subclass 164 indent level is 2 With storage tube
[List of Patents for class 342 subclass 165]  165           TESTING OR CALIBRATING OF RADAR SYSTEM
[List of Patents for class 342 subclass 166]  166           Subclass 166 indent level is 1 Proximity fuze
[List of Patents for class 342 subclass 167]  167           Subclass 167 indent level is 1 With laser
[List of Patents for class 342 subclass 168]  168           Subclass 168 indent level is 1 With noise generation
[List of Patents for class 342 subclass 169]  169           Subclass 169 indent level is 1 By simulation
[List of Patents for class 342 subclass 170]  170           Subclass 170 indent level is 2 Microwave
[List of Patents for class 342 subclass 171]  171           Subclass 171 indent level is 2 Doppler
[List of Patents for class 342 subclass 172]  172           Subclass 172 indent level is 2 With delay
[List of Patents for class 342 subclass 173]  173           Subclass 173 indent level is 1 By monitoring
[List of Patents for class 342 subclass 174]  174           Subclass 174 indent level is 2 Calibrating
[List of Patents for class 342 subclass 175]  175           WITH PARTICULAR CIRCUIT
[List of Patents for class 342 subclass 176]  176           Subclass 176 indent level is 1 Display
[List of Patents for class 342 subclass 177]  177           Subclass 177 indent level is 2 Plural
[List of Patents for class 342 subclass 178]  178           Subclass 178 indent level is 2 Projection type
[List of Patents for class 342 subclass 179]  179           Subclass 179 indent level is 2 Image production
[List of Patents for class 342 subclass 180]  180           Subclass 180 indent level is 2 Stereoscopic or tridimensional
[List of Patents for class 342 subclass 181]  181           Subclass 181 indent level is 2 Color
[List of Patents for class 342 subclass 182]  182           Subclass 182 indent level is 2 Electronic marker generation
[List of Patents for class 342 subclass 183]  183           Subclass 183 indent level is 3 Cursor
[List of Patents for class 342 subclass 184]  184           Subclass 184 indent level is 2 With stabilization (e.g., True Motion, True North)
[List of Patents for class 342 subclass 185]  185           Subclass 185 indent level is 2 Scan conversion
[List of Patents for class 342 subclass 186]  186           Subclass 186 indent level is 2 With sweep expansion
[List of Patents for class 342 subclass 187]  187           Subclass 187 indent level is 1 Augmenter
[List of Patents for class 342 subclass 188]  188           Subclass 188 indent level is 1 With polarization
[List of Patents for class 342 subclass 189]  189           Subclass 189 indent level is 1 For correlation
[List of Patents for class 342 subclass 190]  190           Subclass 190 indent level is 1 With recording
[List of Patents for class 342 subclass 191]  191           Subclass 191 indent level is 2 Mapping
[List of Patents for class 342 subclass 192]  192           Subclass 192 indent level is 1 Spectrum analysis
[List of Patents for class 342 subclass 193]  193           Subclass 193 indent level is 2 Harmonic
[List of Patents for class 342 subclass 194]  194           Subclass 194 indent level is 1 Complex signal (in phase and quadrature)
[List of Patents for class 342 subclass 195]  195           Subclass 195 indent level is 1 Digital processing
[List of Patents for class 342 subclass 196]  196           Subclass 196 indent level is 2 Fast fourier transform (FFT)
[List of Patents for class 342 subclass 197]  197           Subclass 197 indent level is 2 With video quantizer
[List of Patents for class 342 subclass 198]  198           Subclass 198 indent level is 1 For receiver protection
[List of Patents for class 342 subclass 199]  199           Subclass 199 indent level is 1 Automatic frequency control (AFC)
[List of Patents for class 342 subclass 200]  200           Subclass 200 indent level is 1 For frequency modulation
[List of Patents for class 342 subclass 201]  201           Subclass 201 indent level is 2 Combined with pulse modulation
[List of Patents for class 342 subclass 202]  202           Subclass 202 indent level is 1 For pulse modulation
[List of Patents for class 342 subclass 203]  203           Subclass 203 indent level is 2 With noise reduction
[List of Patents for class 342 subclass 204]  204           Subclass 204 indent level is 2 With pulse shaping
[List of Patents for class 342 subclass 205]  205           Subclass 205 indent level is 1 Sensitivity time control (STC)
[List of Patents for class 342 subclass 350]  350           DIRECTIVE
[List of Patents for class 342 subclass 351]  351           Subclass 351 indent level is 1 Including a radiometer
[List of Patents for class 342 subclass 352]  352           Subclass 352 indent level is 1 Including a satellite
[List of Patents for class 342 subclass 353]  353           Subclass 353 indent level is 2 Having a signal repeater
[List of Patents for class 342 subclass 354]  354           Subclass 354 indent level is 2 With beam steering
[List of Patents for class 342 subclass 355]  355           Subclass 355 indent level is 2 With control of satellite altitude
[List of Patents for class 342 subclass 356]  356           Subclass 356 indent level is 2 Synchronous satellite
[List of Patents for class 342 subclass 357.01]  357.01           Subclass 357.01 indent level is 2 With position indicating
[List of Patents for class 342 subclass 357.02]  357.02           Subclass 357.02 indent level is 3 With accuracy enhancing
[List of Patents for class 342 subclass 357.03]  357.03           Subclass 357.03 indent level is 4 Using differential correction
[List of Patents for class 342 subclass 357.04]  357.04           Subclass 357.04 indent level is 4 With ambiguity resolving
[List of Patents for class 342 subclass 357.05]  357.05           Subclass 357.05 indent level is 3 Using Doppler frequency shift
[List of Patents for class 342 subclass 357.06]  357.06           Subclass 357.06 indent level is 3 Using Global Positioning Satellite (GPS or Glonass)
[List of Patents for class 342 subclass 357.07]  357.07           Subclass 357.07 indent level is 4 Tracking or monitoring (i.e., lost or stolen vehicles)
[List of Patents for class 342 subclass 357.08]  357.08           Subclass 357.08 indent level is 4 Determining relative position (e.g., distance or direction)
[List of Patents for class 342 subclass 357.09]  357.09           Subclass 357.09 indent level is 4 With transmission of location-indicative information to or from a remote station
[List of Patents for class 342 subclass 357.1]  357.1           Subclass 357.1 indent level is 4 Combined with telecommunication
[List of Patents for class 342 subclass 357.11]  357.11           Subclass 357.11 indent level is 4 Attitude determination
[List of Patents for class 342 subclass 357.12]  357.12           Subclass 357.12 indent level is 4 GPS receiver signal processing
[List of Patents for class 342 subclass 357.13]  357.13           Subclass 357.13 indent level is 4 With storage device (i.e., map or database)
[List of Patents for class 342 subclass 357.14]  357.14           Subclass 357.14 indent level is 4 Combined with secondary navigation system (i.e., LORAN, gyroscope, inertial, dead reckoning, etc.)
[List of Patents for class 342 subclass 357.15]  357.15           Subclass 357.15 indent level is 4 Satellite selection (i.e., tracking or acquisition)
[List of Patents for class 342 subclass 357.16]  357.16           Subclass 357.16 indent level is 3 Using low Earth orbit (telecommunication) satellites
[List of Patents for class 342 subclass 357.17]  357.17           Subclass 357.17 indent level is 3 With particular action taken responsive to position
[List of Patents for class 342 subclass 358]  358           Subclass 358 indent level is 2 With satellite signal correction
[List of Patents for class 342 subclass 359]  359           Subclass 359 indent level is 1 Including antenna orientation
[List of Patents for class 342 subclass 360]  360           Subclass 360 indent level is 1 Including antenna pattern plotting
[List of Patents for class 342 subclass 361]  361           Subclass 361 indent level is 1 Including polarized signal communication transmitter or receiver
[List of Patents for class 342 subclass 362]  362           Subclass 362 indent level is 2 Receiver only
[List of Patents for class 342 subclass 363]  363           Subclass 363 indent level is 3 Circular
[List of Patents for class 342 subclass 364]  364           Subclass 364 indent level is 3 Eliptical
[List of Patents for class 342 subclass 365]  365           Subclass 365 indent level is 2 Circular
[List of Patents for class 342 subclass 366]  366           Subclass 366 indent level is 2 Eliptical
[List of Patents for class 342 subclass 367]  367           Subclass 367 indent level is 1 Including directive communication system
[List of Patents for class 342 subclass 368]  368           Subclass 368 indent level is 1 Including a steerable array
[List of Patents for class 342 subclass 369]  369           Subclass 369 indent level is 2 Injection radiation type
[List of Patents for class 342 subclass 370]  370           Subclass 370 indent level is 2 Retrodirective
[List of Patents for class 342 subclass 371]  371           Subclass 371 indent level is 2 With electronic scanning
[List of Patents for class 342 subclass 372]  372           Subclass 372 indent level is 3 Controlled
[List of Patents for class 342 subclass 373]  373           Subclass 373 indent level is 2 With a matrix
[List of Patents for class 342 subclass 374]  374           Subclass 374 indent level is 2 With a switch
[List of Patents for class 342 subclass 375]  375           Subclass 375 indent level is 2 With a delay line (e.g., serpentine transmission line, frequency scanning)
[List of Patents for class 342 subclass 376]  376           Subclass 376 indent level is 2 Including a remote energy source
[List of Patents for class 342 subclass 377]  377           Subclass 377 indent level is 2 Including a computer
[List of Patents for class 342 subclass 378]  378           Subclass 378 indent level is 1 Utilizing correlation techniques
[List of Patents for class 342 subclass 379]  379           Subclass 379 indent level is 2 Side lobe elimination
[List of Patents for class 342 subclass 380]  380           Subclass 380 indent level is 3 Sum of each antenna channel signal
[List of Patents for class 342 subclass 381]  381           Subclass 381 indent level is 3 Difference of each antenna channel signal
[List of Patents for class 342 subclass 382]  382           Subclass 382 indent level is 3 Mixing each antenna channel signal
[List of Patents for class 342 subclass 383]  383           Subclass 383 indent level is 2 Sum of each antenna signal
[List of Patents for class 342 subclass 384]  384           Subclass 384 indent level is 2 Difference of each antenna channel signal
[List of Patents for class 342 subclass 385]  385           Subclass 385 indent level is 1 Beacon or receiver
[List of Patents for class 342 subclass 386]  386           Subclass 386 indent level is 2 With transmisson of bearing or position determinative signals
[List of Patents for class 342 subclass 387]  387           Subclass 387 indent level is 3 Iso-chronic type
[List of Patents for class 342 subclass 388]  388           Subclass 388 indent level is 4 Loran
[List of Patents for class 342 subclass 389]  389           Subclass 389 indent level is 5 Loran-C
[List of Patents for class 342 subclass 390]  390           Subclass 390 indent level is 6 With cycle selection
[List of Patents for class 342 subclass 391]  391           Subclass 391 indent level is 5 Loran-A
[List of Patents for class 342 subclass 392]  392           Subclass 392 indent level is 4 With automatic gain control
[List of Patents for class 342 subclass 393]  393           Subclass 393 indent level is 3 Iso-frequency type
[List of Patents for class 342 subclass 394]  394           Subclass 394 indent level is 3 Iso-phase type
[List of Patents for class 342 subclass 395]  395           Subclass 395 indent level is 4 With hetrodyne synchronization
[List of Patents for class 342 subclass 396]  396           Subclass 396 indent level is 4 Omega
[List of Patents for class 342 subclass 397]  397           Subclass 397 indent level is 4 Decca
[List of Patents for class 342 subclass 398]  398           Subclass 398 indent level is 3 Rotating beacon signal
[List of Patents for class 342 subclass 399]  399           Subclass 399 indent level is 3 Tacan
[List of Patents for class 342 subclass 400]  400           Subclass 400 indent level is 4 Receiver only
[List of Patents for class 342 subclass 401]  401           Subclass 401 indent level is 5 VOR
[List of Patents for class 342 subclass 402]  402           Subclass 402 indent level is 6 Doppler
[List of Patents for class 342 subclass 403]  403           Subclass 403 indent level is 7 With circular array of antennas
[List of Patents for class 342 subclass 404]  404           Subclass 404 indent level is 4 VOR
[List of Patents for class 342 subclass 405]  405           Subclass 405 indent level is 5 Doppler
[List of Patents for class 342 subclass 406]  406           Subclass 406 indent level is 6 With circular array of antennas
[List of Patents for class 342 subclass 407]  407           Subclass 407 indent level is 3 Fixed course or bearing indicating
[List of Patents for class 342 subclass 408]  408           Subclass 408 indent level is 4 Moving beam
[List of Patents for class 342 subclass 409]  409           Subclass 409 indent level is 4 With superimposed images
[List of Patents for class 342 subclass 410]  410           Subclass 410 indent level is 4 Glide slope transmitter or receiver
[List of Patents for class 342 subclass 411]  411           Subclass 411 indent level is 5 Receiver only
[List of Patents for class 342 subclass 412]  412           Subclass 412 indent level is 5 Transmitter oly
[List of Patents for class 342 subclass 413]  413           Subclass 413 indent level is 4 Localizer transmitter or receiver
[List of Patents for class 342 subclass 414]  414           Subclass 414 indent level is 4 Distinctive frequencies equi-signal type
[List of Patents for class 342 subclass 415]  415           Subclass 415 indent level is 5 Coded equi-signal (e.g., A and N type)
[List of Patents for class 342 subclass 416]  416           Subclass 416 indent level is 5 Sequentially effective reflectors
[List of Patents for class 342 subclass 417]  417           Subclass 417 indent level is 2 Direction-finding receiver only
[List of Patents for class 342 subclass 418]  418           Subclass 418 indent level is 3 Doppler
[List of Patents for class 342 subclass 419]  419           Subclass 419 indent level is 3 Portable
[List of Patents for class 342 subclass 420]  420           Subclass 420 indent level is 3 With error or deviatioan compensator or eliminator
[List of Patents for class 342 subclass 421]  421           Subclass 421 indent level is 4 Pulse-type noise elimination or compensation (e.g., sky waves)
[List of Patents for class 342 subclass 422]  422           Subclass 422 indent level is 3 With self-orienting antenna pattern
[List of Patents for class 342 subclass 423]  423           Subclass 423 indent level is 4 Plural antennas
[List of Patents for class 342 subclass 424]  424           Subclass 424 indent level is 5 Tracking interferometer
[List of Patents for class 342 subclass 425]  425           Subclass 425 indent level is 4 Conical scan antenna type
[List of Patents for class 342 subclass 426]  426           Subclass 426 indent level is 4 Step track antenna type
[List of Patents for class 342 subclass 427]  427           Subclass 427 indent level is 4 Monopulse or pseuodo monopulse tracking antenna type
[List of Patents for class 342 subclass 428]  428           Subclass 428 indent level is 3 With continuously movable antenna pattern
[List of Patents for class 342 subclass 429]  429           Subclass 429 indent level is 4 Including a stationary antenna
[List of Patents for class 342 subclass 430]  430           Subclass 430 indent level is 4 Including plural moving antennas
[List of Patents for class 342 subclass 431]  431           Subclass 431 indent level is 4 Including a goniometer
[List of Patents for class 342 subclass 432]  432           Subclass 432 indent level is 3 With plural fixed antenna pattern comparing
[List of Patents for class 342 subclass 433]  433           Subclass 433 indent level is 4 Successively commutated
[List of Patents for class 342 subclass 434]  434           Subclass 434 indent level is 5 Including more than two antennas
[List of Patents for class 342 subclass 435]  435           Subclass 435 indent level is 5 By diode switching
[List of Patents for class 342 subclass 436]  436           Subclass 436 indent level is 5 By modulation
[List of Patents for class 342 subclass 437]  437           Subclass 437 indent level is 4 Including more than two antennas
[List of Patents for class 342 subclass 438]  438           Subclass 438 indent level is 4 Including separate indicators
[List of Patents for class 342 subclass 439]  439           Subclass 439 indent level is 4 Including combined effect indicator
[List of Patents for class 342 subclass 440]  440           Subclass 440 indent level is 4 Including a goniometer
[List of Patents for class 342 subclass 441]  441           Subclass 441 indent level is 3 Having a goniometer
[List of Patents for class 342 subclass 442]  442           Subclass 442 indent level is 3 Having a phase detector
[List of Patents for class 342 subclass 443]  443           Subclass 443 indent level is 3 Having a direction indicator
[List of Patents for class 342 subclass 444]  444           Subclass 444 indent level is 3 Having plural receivers
[List of Patents for class 342 subclass 445]  445           Subclass 445 indent level is 3 Having more than two antennas
[List of Patents for class 342 subclass 446]  446           Subclass 446 indent level is 4 Unequal distance between at least three antennas
[List of Patents for class 342 subclass 447]  447           Subclass 447 indent level is 3 Having a spiral antennas
[List of Patents for class 342 subclass 448]  448           Subclass 448 indent level is 3 Having a coil or loop type antenna
[List of Patents for class 342 subclass 449]  449           Subclass 449 indent level is 3 Having a moving antenna
[List of Patents for class 342 subclass 450]  450           Subclass 450 indent level is 1 Position indicating (e.g., triangulation)
[List of Patents for class 342 subclass 451]  451           Subclass 451 indent level is 2 By computer
[List of Patents for class 342 subclass 452]  452           Subclass 452 indent level is 2 By plotting table
[List of Patents for class 342 subclass 453]  453           Subclass 453 indent level is 2 By deflected or repeated signal
[List of Patents for class 342 subclass 454]  454           Subclass 454 indent level is 2 Traffic
[List of Patents for class 342 subclass 455]  455           Subclass 455 indent level is 3 Having collision avoidance
[List of Patents for class 342 subclass 456]  456           Subclass 456 indent level is 3 Having traffic control
[List of Patents for class 342 subclass 457]  457           Subclass 457 indent level is 2 Land vehicle location (e.g., bus, police car
[List of Patents for class 342 subclass 458]  458           Subclass 458 indent level is 2 Distance
[List of Patents for class 342 subclass 459]  459           Subclass 459 indent level is 2 Underground object location
[List of Patents for class 342 subclass 460]  460           Subclass 460 indent level is 2 Storm or atomic explosion location
[List of Patents for class 342 subclass 461]  461           Subclass 461 indent level is 2 With speed determination
[List of Patents for class 342 subclass 462]  462           Subclass 462 indent level is 2 With altitude determination
[List of Patents for class 342 subclass 463]  463           Subclass 463 indent level is 2 Having plural transmitters or receivers
[List of Patents for class 342 subclass 464]  464           Subclass 464 indent level is 3 Plural transmitters only
[List of Patents for class 342 subclass 465]  465           Subclass 465 indent level is 3 Plural receivers only
 
FOREIGN ART COLLECTIONS
 
   FOR000          CLASS-RELATED FOREIGN DOCUMENTS
Any foreign patents or non-patent literature from subclasses that have been reclassified have been transferred directly to FOR Collections listed below. These Collections contain ONLY foreign patents or non-patent literature. The parenthetical references in the Collection titles refer to the abolished subclasses from which these Collections were derived.

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