Class   342	COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION)
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1

RADIO WAVE ABSORBER

2

. (1 indent ) For aircraft or missile

3

. (1 indent ) For camouflage

4

. (1 indent ) With particular geometric configuration

5

RADAR REFLECTOR

6

. (1 indent ) With modulation

7

. (1 indent ) Corner

8

.. (2 indent ) Inflatable or collapsable

9

.. (2 indent ) Decoy or tow target

10

. (1 indent ) Inflatable or collapsable

11

. (1 indent ) With spherical lens (e.g., Luneberg lens)

12

. (1 indent ) Chaff

13

RADAR EW (ELECTRONIC WARFARE)

14

. (1 indent ) ECM (Electronic countermeasures, i.e., jamming)

15

.. (2 indent ) With repeater

16

. (1 indent ) ECCM (Electronic counter-countermeasures, i.e., antijamming)

17

.. (2 indent ) Radar reacts to jamming

18

... (3 indent ) By changing frequency

19

... (3 indent ) By varying gain or blocking receiver

20

. (1 indent ) Detection of surveilance

21

BASE BAND SYSTEM

22

TRANSMISSION THROUGH MEDIA OTHER THAN AIR OR FREE SPACE

23

BERTHING OR DOCKING

24

BLIND AID

25R

SYNTHETIC APERTURE RADAR

25A

. (1 indent ) Mapping or imaging using synthetic aperture radar (EPO)

25B

.. (2 indent ) Specially adapted for moving target detection (EPO)

25C

.. (2 indent ) Combined with monopulse or interferometric (EPO)

25D

.. (2 indent ) With frequency domain processing of the SAR signals in azimuth (EPO)

25E

.. (2 indent ) With time domain processing of the SAR signals in azimuth, e.g. time focusing (EPO)

25F

.. (2 indent ) Particular SAR processing techniques (e.g., squint mode, doppler beam-sharpening mode, spotlight mode, bistatic SAR, inverse SAR) (EPO)

26R

RADAR FOR METEOROLOGICAL USE (EPO)

26A

. (1 indent ) Mounted on satellite (EPO)

26B

. (1 indent ) Mounted on aircraft (EPO)

26C

. (1 indent ) Mounted on ship (EPO)

26D

. (1 indent ) Ground based (EPO)

27

PRESENCE DETECTION ONLY

28

. (1 indent ) By motion detection

29

AIRCRAFT COLLISION AVOIDANCE SYSTEM (CAS)

30

. (1 indent ) With transponder

31

.. (2 indent ) Including synchronized clock

32

.. (2 indent ) Included in Secondary Surveilance Radar (SSR) or Air Traffic Control Radio Beacon System (ATCRBS)

33

AIRCRAFT LANDING SYSTEM

34

. (1 indent ) Ground control approach (GCA)

35

. (1 indent ) Microwave landing system (MLS)

36

AIR TRAFFIC CONTROL

37

. (1 indent ) Secondary Surveilance Radar (SSR) or Air Traffic Control Radar Beacon System (ATCRBS)

38

.. (2 indent ) With altitude information

39

.. (2 indent ) With side lobe suppression

40

.. (2 indent ) With defruiting or degarbling

41

SHIP COLLISION AVOIDANCE

42

RADAR TRANSPONDER SYSTEM

43

. (1 indent ) Combined with primary radar system

44

. (1 indent ) Unique identity

45

. (1 indent ) IFF or SIF

46

. (1 indent ) Navigational

47

.. (2 indent ) Distance measuring equipment (DME)

48

... (3 indent ) With automatic lock-on

49

... (3 indent ) With VOR/TACAN

50

. (1 indent ) With Telemetry

51

. (1 indent ) Radar transponder only

52

COMBINED WITH DIVERSE TYPE RADIANT ENERGY SYSTEM

53

. (1 indent ) With infrared device

54

. (1 indent ) With laser

55

. (1 indent ) With television

56

. (1 indent ) With direction finding

57

. (1 indent ) With radio voice communication

58

. (1 indent ) With transmission to a remote station

59

PLURAL RADAR

60

TRANSMITTING INTELLIGENCE

61

RETURN SIGNAL CONTROLS EXTERNAL DEVICE

62

. (1 indent ) Missile or spacecraft guidance

63

. (1 indent ) Aircraft guidance

64

.. (2 indent ) With map matching

65

.. (2 indent ) With terrain avoidance or alarm

66

. (1 indent ) Camera

67

. (1 indent ) Gun (e.g., fire control)

68

. (1 indent ) Proximity fuze

69

. (1 indent ) Device actuated by presence of land vehicle

70

. (1 indent ) Radar mounted on and controls land vehicle

71

.. (2 indent ) With control of brakes or steering

72

.. (2 indent ) With control of safety device (e.g., air bags)

73

RETURN SIGNAL CONTROLS RADAR SYSTEM

74

. (1 indent ) Antenna control

75

.. (2 indent ) Physical orientation

76

... (3 indent ) With ground tracking

77

... (3 indent ) With signal error correction

78

... (3 indent ) Conical scan

79

... (3 indent ) Lobe switching

80

... (3 indent ) Monopulse

81

.. (2 indent ) Beam direction by phase or frequency control

82

. (1 indent ) Transmitter

83

.. (2 indent ) Signal phase or frequency other than pulse repetition frequency (PRF)

84

... (3 indent ) Function of doppler frequency

85

... (3 indent ) Function of distance

86

.... (4 indent ) With constant phase

87

.... (4 indent ) With constant beat frequency

88

.. (2 indent ) Transmission timing (e.g., ring around)

89

. (1 indent ) Receiver

90

.. (2 indent ) Automatic target detection

91

.. (2 indent ) Gain or threshold

92

... (3 indent ) Automatic gain control (AGC)

93

... (3 indent ) Constant false alarm rate (CFAR)

94

.. (2 indent ) Gating

95

... (3 indent ) Automatic range tracking

96

.... (4 indent ) Automatic track while scan (ATWS)

97

.... (4 indent ) With automatic lock-on

98

.. (2 indent ) Frequency

99

... (3 indent ) Doppler frequency tracking

100

.... (4 indent ) With local oscillator control

101

.... (4 indent ) With filter control

102

... (3 indent ) Phase

103

.... (4 indent ) Phase locked loop

104

DETERMINING VELOCITY

105

. (1 indent ) Other than doppler (e.g., range rate)

106

. (1 indent ) Combined with determining acceleration

107

. (1 indent ) Combined with determining distance and direction

108

.. (2 indent ) With correlation

109

. (1 indent ) Combined with determining distance

110

.. (2 indent ) With plural fixed range gates

111

.. (2 indent ) With plural receiver frequency band separation

112

.. (2 indent ) With plural frequencies transmission

113

. (1 indent ) Combined with determining direction (i.e., bearing)

114

. (1 indent ) Combined with determining sense of motion (i.e., approaching or receding)

115

. (1 indent ) Digital

116

. (1 indent ) With plural received frequency band separation

117

. (1 indent ) With plural beams (e.g., "Janus")

118

DETERMINING DISTANCE

119

. (1 indent ) Miss distance indicator (MDI)

120

. (1 indent ) Altimeter

121

.. (2 indent ) With additional indicator

122

.. (2 indent ) FM type

123

. (1 indent ) Height finder

124

. (1 indent ) Material level within container

125

. (1 indent ) With remote cooperating station

126

. (1 indent ) Triangulation

127

. (1 indent ) Phase comparison

128

. (1 indent ) With frequency modulation

129

.. (2 indent ) Plural frequencies transmitted

130

.. (2 indent ) Plural modulation

131

... (3 indent ) Combined with pulse modulation (e.g., frequency agile)

132

.... (4 indent ) With pulse modulation (e.g., "Chirp")

133

.. (2 indent ) Combined with determining direction

134

. (1 indent ) With pulse modulation

135

.. (2 indent ) Digital (e.g., with counter)

136

... (3 indent ) With plural fixed range gates

137

.. (2 indent ) With variable pulse repetition frequency (PRF) or pulse width

138

.. (2 indent ) With type "A" or "J" range scope

139

.. (2 indent ) Combined with determining direction

140

... (3 indent ) With azimuth and elevation determination

141

... (3 indent ) Off boresight

142

... (3 indent ) With CRT display

143

.... (4 indent ) Plural

144

.... (4 indent ) PPI type

145

. (1 indent ) With correlation

146

. (1 indent ) Combined with determining direction

147

DETERMINING DIRECTION

148

. (1 indent ) Low angle processing

149

. (1 indent ) Monopulse

150

.. (2 indent ) With common IF channel

151

.. (2 indent ) With channel equalization

152

.. (2 indent ) With quadrature difference processing

153

.. (2 indent ) With particular antenna or waveguide

154

.. (2 indent ) Combined with beam steering

155

. (1 indent ) Lobe switching

156

. (1 indent ) Interferometer

157

. (1 indent ) With frequency or phase steering

158

. (1 indent ) Scanning

159

CLUTTER ELIMINATION

160

. (1 indent ) MTI (Moving target indicator)

161

.. (2 indent ) With vehicle movement compensation (e.g., AMTI (Airborn MTI))

162

.. (2 indent ) Digital

163

.. (2 indent ) With blind speed elimination

164

.. (2 indent ) With storage tube

165

TESTING OR CALIBRATING OF RADAR SYSTEM

166

. (1 indent ) Proximity fuze

167

. (1 indent ) With laser

168

. (1 indent ) With noise generation

169

. (1 indent ) By simulation

170

.. (2 indent ) Microwave

171

.. (2 indent ) Doppler

172

.. (2 indent ) With delay

173

. (1 indent ) By monitoring

174

.. (2 indent ) Calibrating

175

WITH PARTICULAR CIRCUIT

176

. (1 indent ) Display

177

.. (2 indent ) Plural

178

.. (2 indent ) Projection type

179

.. (2 indent ) Image production

180

.. (2 indent ) Stereoscopic or tridimensional

181

.. (2 indent ) Color

182

.. (2 indent ) Electronic marker generation

183

... (3 indent ) Cursor

184

.. (2 indent ) With stabilization (e.g., True Motion, True North)

185

.. (2 indent ) Scan conversion

186

.. (2 indent ) With sweep expansion

187

. (1 indent ) Augmenter

188

. (1 indent ) With polarization

189

. (1 indent ) For correlation

190

. (1 indent ) With recording

191

.. (2 indent ) Mapping

192

. (1 indent ) Spectrum analysis

193

.. (2 indent ) Harmonic

194

. (1 indent ) Complex signal (in phase and quadrature)

195

. (1 indent ) Digital processing

196

.. (2 indent ) Fast fourier transform (FFT)

197

.. (2 indent ) With video quantizer

198

. (1 indent ) For receiver protection

199

. (1 indent ) Automatic frequency control (AFC)

200

. (1 indent ) For frequency modulation

201

.. (2 indent ) Combined with pulse modulation

202

. (1 indent ) For pulse modulation

203

.. (2 indent ) With noise reduction

204

.. (2 indent ) With pulse shaping

205

. (1 indent ) Sensitivity time control (STC)

350

DIRECTIVE

351

. (1 indent ) Including a radiometer

352

. (1 indent ) Including a satellite

353

.. (2 indent ) Having a signal repeater

354

.. (2 indent ) With beam steering

355

.. (2 indent ) With control of satellite attitude

356

.. (2 indent ) Synchronous satellite

357.2

.. (2 indent ) With position, velocity, or attitude determination (IPC)

357.21

... (3 indent ) Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system

357.22

.... (4 indent ) Satellite radio beacon positioning system transmitting time-stamped messages; e.g., GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO (IPC)

357.23

....• (5 indent ) Correcting position, velocity, or attitude

357.24

....•. (6 indent ) Differential correction; e.g., DGPS [differential GPS] (IPC)

357.25

....• (5 indent ) Determining position (IPC)

357.26

....•. (6 indent ) Using carrier phase measurements; e.g., kinematic positioning; using long or short baseline interferometry (IPC)

357.27

....•.. (7 indent ) Carrier phase ambiguity resolution; floating ambiguity; LAMBDA [Least-squares AMBiguity Declaration Adjustment] method (IPC)

357.28

....•. (6 indent ) By combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement (IPC)

357.29

....•.. (7 indent ) The supplementary measurement being of a radio-wave signal type (IPC)

357.3

....•.. (7 indent ) The supplementary measurement being an inertial measurement; e.g., tightly coupled inertial (IPC)

357.31

....•. (6 indent ) By combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system (IPC)

357.32

....•.. (7 indent ) Whereby the further system is an inertial position system; e.g., loosely coupled (IPC)

357.33

....•. (6 indent ) Whereby the position solution is constrained to lie upon a particular curve or surface; e.g., for locomotives on railway tracks (IPC)

357.34

....•. (6 indent ) Relative positioning (IPC)

357.35

....• (5 indent ) Determining velocity (IPC)

357.36

....• (5 indent ) Determining attitude (IPC)

357.37

....•. (6 indent ) Using carrier phase measurements; using long or short baseline interferometry (IPC)

357.38

....•.. (7 indent ) Carrier phase ambiguity resolution; floating ambiguity; LAMBDA [Least-squares AMBiguity Declaration Adjustment] method)

357.39

... (3 indent ) Satellite radio beacon positioning system transmitting time-stamped messages; e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO (IPC)

357.395

.... (4 indent ) Details of the space or ground control segments (IPC)

357.4

.... (4 indent ) Cooperating elements; interaction or communication between different cooperating elements or between cooperating elements and receivers (IPC)

357.41

....• (5 indent ) Providing carrier phase data (IPC)

357.42

....• (5 indent ) Providing aiding data (IPC)

357.43

....•. (6 indent ) Employing an initial estimate of the location of the receiver as aiding data or in generating aiding data (IPC)

357.44

....• (5 indent ) Providing data for correcting measured positioning data; e.g., DGPS [differential GPS] or ionosphere corrections (IPC)

357.45

....• (5 indent ) Providing integrity information; e.g., health of satellites or quality of ephemeris data (IPC)

357.46

....• (5 indent ) Providing processing capability normally carried out by the receiver (IPC)

357.47

....• (5 indent ) Providing dedicated supplementary positioning signals (IPC)

357.48

....•. (6 indent ) Wherein the cooperating elements are pseudolites or satellite radio beacon positioning system signal repeaters (IPC)

357.49

....•. (6 indent ) Wherein the cooperating elements are telecommunication base stations (IPC)

357.51

.... (4 indent ) Receivers (IPC)

357.52

....• (5 indent ) Specially adapted for specific applications (IPC)

357.53

....•. (6 indent ) Aircraft landing systems (IPC)

357.54

....•. (6 indent ) Anti-theft; abduction (IPC)

357.55

....•. (6 indent ) Emergency applications (IPC)

357.56

....•. (6 indent ) Military applications (IPC)

357.57

....•. (6 indent ) Sporting applications (IPC)

357.58

....• (5 indent ) Integrity monitoring, fault detection or fault isolation of space segment)

357.59

....• (5 indent ) Interference-related issues (IPC)

357.61

....• (5 indent ) Multipath-related issues (IPC)

357.62

....• (5 indent ) Testing, monitoring, correcting or calibrating of a receiver element (IPC)

357.63

....• (5 indent ) Acquisition or tracking of signals transmitted by the system (IPC)

357.64

....•. (6 indent ) Involving aiding data received from a cooperating element; e.g., assisted GPS (IPC)

357.65

....•. (6 indent ) Involving a sensor measurement for aiding acquisition or tracking (IPC)

357.66

....•. (6 indent ) Creating, predicting or correcting ephemeris or almanac data within the receiver (IPC)

357.67

....•. (6 indent ) Satellite selection (IPC)

357.68

....•. (6 indent ) Carrier related (IPC)

357.69

....•. (6 indent ) Code related (IPC)

357.71

....• (5 indent ) Acquisition or tracking of other signals for positioning (IPC)

357.72

....• (5 indent ) Multimode operation in a single same satellite system; e.g., GPS L1/L2 (IPC)

357.73

....• (5 indent ) Multimode operation in different systems which transmit time-stamped messages; e.g., GPS/GLONASS (IPC)

357.74

....• (5 indent ) Power consumption

357.75

....• (5 indent ) Constructional details or hardware or software details of the signal processing chain (IPC)

357.76

....•. (6 indent ) Relating to the receiver frond end (IPC)

357.77

....•. (6 indent ) Hardware or software details of the signal processing chain (IPC)

357.78

... (3 indent ) Using Doppler frequency shift

358

.. (2 indent ) With satellite signal correction

359

. (1 indent ) Including antenna orientation

360

. (1 indent ) Including antenna pattern plotting

361

. (1 indent ) Including polarized signal communication transmitter or receiver

362

.. (2 indent ) Receiver only

363

... (3 indent ) Circular

364

... (3 indent ) Eliptical

365

.. (2 indent ) Circular

366

.. (2 indent ) Eliptical

367

. (1 indent ) Including directive communication system

368

. (1 indent ) Including a steerable array

369

.. (2 indent ) Injection radiation type

370

.. (2 indent ) Retrodirective

371

.. (2 indent ) With electronic scanning

372

... (3 indent ) Controlled

373

.. (2 indent ) With a matrix

374

.. (2 indent ) With a switch

375

.. (2 indent ) With a delay line (e.g., serpentine transmission line, frequency scanning)

376

.. (2 indent ) Including a remote energy source

377

.. (2 indent ) Including a computer

378

. (1 indent ) Utilizing correlation techniques

379

.. (2 indent ) Side lobe elimination

380

... (3 indent ) Sum of each antenna channel signal

381

... (3 indent ) Difference of each antenna channel signal

382

... (3 indent ) Mixing each antenna channel signal

383

.. (2 indent ) Sum of each antenna signal

384

.. (2 indent ) Difference of each antenna channel signal

385

. (1 indent ) Beacon or receiver

386

.. (2 indent ) With transmisson of bearing or position determinative signals

387

... (3 indent ) Iso-chronic type

388

.... (4 indent ) Loran

389

....• (5 indent ) Loran-C

390

....•. (6 indent ) With cycle selection

391

....• (5 indent ) Loran-A

392

.... (4 indent ) With automatic gain control

393

... (3 indent ) Iso-frequency type

394

... (3 indent ) Iso-phase type

395

.... (4 indent ) With hetrodyne synchronization

396

.... (4 indent ) Omega

397

.... (4 indent ) Decca

398

... (3 indent ) Rotating beacon signal

399

... (3 indent ) Tacan

400

.... (4 indent ) Receiver only

401

....• (5 indent ) VOR

402

....•. (6 indent ) Doppler

403

....•.. (7 indent ) With circular array of antennas

404

.... (4 indent ) VOR

405

....• (5 indent ) Doppler

406

....•. (6 indent ) With circular array of antennas

407

... (3 indent ) Fixed course or bearing indicating

408

.... (4 indent ) Moving beam

409

.... (4 indent ) With superimposed images

410

.... (4 indent ) Glide slope transmitter or receiver

411

....• (5 indent ) Receiver only

412

....• (5 indent ) Transmitter only

413

.... (4 indent ) Localizer transmitter or receiver

414

.... (4 indent ) Distinctive frequencies equi-signal type

415

....• (5 indent ) Coded equi-signal (e.g., A and N type)

416

....• (5 indent ) Sequentially effective reflectors

417

.. (2 indent ) Direction-finding receiver only

418

... (3 indent ) Doppler

419

... (3 indent ) Portable

420

... (3 indent ) With error or deviatioan compensator or eliminator

421

.... (4 indent ) Pulse-type noise elimination or compensation (e.g., sky waves)

422

... (3 indent ) With self-orienting antenna pattern

423

.... (4 indent ) Plural antennas

424

....• (5 indent ) Tracking interferometer

425

.... (4 indent ) Conical scan antenna type

426

.... (4 indent ) Step track antenna type

427

.... (4 indent ) Monopulse or pseuodo monopulse tracking antenna type

428

... (3 indent ) With continuously movable antenna pattern

429

.... (4 indent ) Including a stationary antenna

430

.... (4 indent ) Including plural moving antennas

431

.... (4 indent ) Including a goniometer

432

... (3 indent ) With plural fixed antenna pattern comparing

433

.... (4 indent ) Successively commutated

434

....• (5 indent ) Including more than two antennas

435

....• (5 indent ) By diode switching

436

....• (5 indent ) By modulation

437

.... (4 indent ) Including more than two antennas

438

.... (4 indent ) Including separate indicators

439

.... (4 indent ) Including combined effect indicator

440

.... (4 indent ) Including a goniometer

441

... (3 indent ) Having a goniometer

442

... (3 indent ) Having a phase detector

443

... (3 indent ) Having a direction indicator

444

... (3 indent ) Having plural receivers

445

... (3 indent ) Having more than two antennas

446

.... (4 indent ) Unequal distance between at least three antennas

447

... (3 indent ) Having a spiral antennas

448

... (3 indent ) Having a coil or loop type antenna

449

... (3 indent ) Having a moving antenna

450

. (1 indent ) Position indicating (e.g., triangulation)

451

.. (2 indent ) By computer

452

.. (2 indent ) By plotting table

453

.. (2 indent ) By deflected or repeated signal

454

.. (2 indent ) Traffic

455

... (3 indent ) Having collision avoidance

456

... (3 indent ) Having traffic control

457

.. (2 indent ) Land vehicle location (e.g., bus, police car

458

.. (2 indent ) Distance

459

.. (2 indent ) Underground object location

460

.. (2 indent ) Storm or atomic explosion location

461

.. (2 indent ) With speed determination

462

.. (2 indent ) With altitude determination

463

.. (2 indent ) Having plural transmitters or receivers

464

... (3 indent ) Plural transmitters only

465

... (3 indent ) Plural receivers only

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