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