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Class Information
Number: 342
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) >
Description: STATEMENT OF THE CLASS SUBJECT MATTER:










Class Number Class Name No. of Patents
342/36

Air traffic control

265
342/37

Secondary surveilance radar (ssr) or air traffic control radar beacon system (atcrbs)

151
342/38

With altitude information

45
342/40

With defruiting or degarbling

56
342/39

With side lobe suppression

28
342/29

Aircraft collision avoidance system (cas)

364
342/30

With transponder

158
342/32

Included in secondary surveilance radar (ssr) or air traffic control radio beacon system (atcrbs)

124
342/31

Including synchronized clock

13
342/33

Aircraft landing system

146
342/34

Ground control approach (gca)

30
342/35

Microwave landing system (mls)

51
342/21

Base band system

150
342/23

Berthing or docking

25
342/24

Blind aid

24
342/159

Clutter elimination

637
342/160

Mti (moving target indicator)

225
342/162

Digital

255
342/163

With blind speed elimination

29
342/164

With storage tube

1
342/161

With vehicle movement compensation (e.g., amti (airborn mti))

73
342/52

Combined with diverse type radiant energy system

310
342/56

With direction finding

42
342/53

With infrared device

179
342/54

With laser

198
342/57

With radio voice communication

82
342/55

With television

91
342/58

With transmission to a remote station

131
342/147

Determining direction

338
342/156

Interferometer

91
342/155

Lobe switching

42
342/148

Low angle processing

50
342/149

Monopulse

225
342/154

Combined with beam steering

87
342/151

With channel equalization

41
342/150

With common if channel

32
342/153

With particular antenna or waveguide

87
342/152

With quadrature difference processing

87
342/158

Scanning

175
342/157

With frequency or phase steering

167
342/118

Determining distance

733
342/120

Altimeter

177
342/122

Fm type

67
342/121

With additional indicator

35
342/146

Combined with determining direction

278
342/123

Height finder

81
342/124

Material level within container

275
342/119

Miss distance indicator (mdi)

27
342/127

Phase comparison

196
342/126

Triangulation

163
342/145

With correlation

199
342/128

With frequency modulation

388
342/133

Combined with determining direction

122
342/129

Plural frequencies transmitted

134
342/130

Plural modulation

87
342/131

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

73
342/132

With pulse modulation (e.g., "chirp")

166
342/134

With pulse modulation

253
342/139

Combined with determining direction

90
342/141

Off boresight

20
342/140

With azimuth and elevation determination

98
342/142

With crt display

13
342/143

Plural

1
342/144

Ppi type

4
342/135

Digital (e.g., with counter)

212
342/136

With plural fixed range gates

38
342/138

With type "a" or "j" range scope

2
342/137

With variable pulse repetition frequency (prf) or pulse width

153
342/125

With remote cooperating station

180
342/104

Determining velocity

349
342/106

Combined with determining acceleration

55
342/113

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

89
342/107

Combined with determining distance and direction

246
342/108

With correlation

83
342/109

Combined with determining distance

325
342/110

With plural fixed range gates

41
342/112

With plural frequencies transmission

57
342/111

With plural receiver frequency band separation

71
342/114

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

154
342/115

Digital

251
342/105

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

77
342/117

With plural beams (e.g., "janus")

48
342/116

With plural received frequency band separation

53
342/350

Directive

87
342/385

Beacon or receiver

71
342/417

Direction-finding receiver only

219
342/418

Doppler

98
342/448

Having a coil or loop type antenna

46
342/443

Having a direction indicator

63
342/441

Having a goniometer

17
342/449

Having a moving antenna

28
342/442

Having a phase detector

235
342/447

Having a spiral antennas

9
342/445

Having more than two antennas

95
342/446

Unequal distance between at least three antennas

19
342/444

Having plural receivers

81
342/419

Portable

77
342/428

With continuously movable antenna pattern

15
342/431

Including a goniometer

7
342/429

Including a stationary antenna

17
342/430

Including plural moving antennas

23
342/420

With error or deviatioan compensator or eliminator

45
342/421

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

9
342/432

With plural fixed antenna pattern comparing

81
342/440

Including a goniometer

12
342/439

Including combined effect indicator

11
342/437

Including more than two antennas

33
342/438

Including separate indicators

7
342/433

Successively commutated

34
342/435

By diode switching

15
342/436

By modulation

16
342/434

Including more than two antennas

38
342/422

With self-orienting antenna pattern

51
342/425

Conical scan antenna type

17
342/427

Monopulse or pseuodo monopulse tracking antenna type

79
342/423

Plural antennas

65
342/424

Tracking interferometer

123
342/426

Step track antenna type

19
342/386

With transmisson of bearing or position determinative signals

183
342/407

Fixed course or bearing indicating

24
342/414

Distinctive frequencies equi-signal type

9
342/415

Coded equi-signal (e.g., a and n type)

4
342/416

Sequentially effective reflectors

2
342/410

Glide slope transmitter or receiver

36
342/411

Receiver only

33
342/412

Transmitter oly

21
342/413

Localizer transmitter or receiver

41
342/408

Moving beam

53
342/409

With superimposed images

5
342/387

Iso-chronic type

198
342/388

Loran

20
342/391

Loran-a

3
342/389

Loran-c

61
342/390

With cycle selection

14
342/392

With automatic gain control

3
342/393

Iso-frequency type

10
342/394

Iso-phase type

32
342/397

Decca

6
342/396

Omega

17
342/395

With hetrodyne synchronization

3
342/398

Rotating beacon signal

36
342/399

Tacan

26
342/400

Receiver only

11
342/401

Vor

31
342/402

Doppler

18
342/403

With circular array of antennas

6
342/404

Vor

20
342/405

Doppler

24
342/406

With circular array of antennas

11
342/351

Including a radiometer

110
342/352

Including a satellite

402
342/353

Having a signal repeater

88
342/356

Synchronous satellite

115
342/354

With beam steering

248
342/355

With control of satellite altitude

68
342/357.01

With position indicating

499
342/357.05

Using doppler frequency shift

108
342/357.06

Using global positioning satellite (gps or glonass)

1099
342/357.11

Attitude determination

95
342/357.14

Combined with secondary navigation system (i.e., loran, gyroscope, inertial, dead reckoning, etc.)

269
342/357.1

Combined with telecommunication

499
342/357.08

Determining relative position (e.g., distance or direction)

435
342/357.12

Gps receiver signal processing

655
342/357.15

Satellite selection (i.e., tracking or acquisition)

281
342/357.07

Tracking or monitoring (i.e., lost or stolen vehicles)

329
342/357.13

With storage device (i.e., map or database)

391
342/357.09

With transmission of location-indicative information to or from a remote station

624
342/357.16

Using low earth orbit (telecommunication) satellites

69
342/357.02

With accuracy enhancing

393
342/357.03

Using differential correction

242
342/357.04

With ambiguity resolving

90
342/357.17

With particular action taken responsive to position

157
342/358

With satellite signal correction

195
342/368

Including a steerable array

682
342/377

Including a computer

207
342/376

Including a remote energy source

65
342/369

Injection radiation type

15
342/370

Retrodirective

47
342/375

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

311
342/373

With a matrix

474
342/374

With a switch

374
342/371

With electronic scanning

180
342/372

Controlled

729
342/359

Including antenna orientation

436
342/360

Including antenna pattern plotting

139
342/367

Including directive communication system

212
342/361

Including polarized signal communication transmitter or receiver

199
342/365

Circular

46
342/366

Eliptical

14
342/362

Receiver only

88
342/363

Circular

45
342/364

Eliptical

11
342/450

Position indicating (e.g., triangulation)

610
342/451

By computer

366
342/453

By deflected or repeated signal

134
342/452

By plotting table

36
342/458

Distance

288
342/463

Having plural transmitters or receivers

480
342/465

Plural receivers only

292
342/464

Plural transmitters only

201
342/457

Land vehicle location (e.g., bus, police car

913
342/460

Storm or atomic explosion location

68
342/454

Traffic

68
342/455

Having collision avoidance

237
342/456

Having traffic control

89
342/459

Underground object location

55
342/462

With altitude determination

45
342/461

With speed determination

51
342/378

Utilizing correlation techniques

354
342/384

Difference of each antenna channel signal

50
342/379

Side lobe elimination

144
342/381

Difference of each antenna channel signal

63
342/382

Mixing each antenna channel signal

54
342/380

Sum of each antenna channel signal

117
342/383

Sum of each antenna signal

218
342/59

Plural radar

258
342/27

Presence detection only

578
342/28

By motion detection

359
342/13

Radar ew (electronic warfare)

494
342/20

Detection of surveilance

263
342/16

Eccm (electronic counter-countermeasures, i.e., antijamming)

179
342/17

Radar reacts to jamming

111
342/18

By changing frequency

33
342/19

By varying gain or blocking receiver

41
342/14

Ecm (electronic countermeasures, i.e., jamming)

242
342/15

With repeater

107
342/26R

Radar for meteorological use (epo)

267
342/26D

Ground based (epo)

154
342/26B

Mounted on aircraft (epo)

211
342/26A

Mounted on satellite (epo)

40
342/26C

Mounted on ship (epo)

25
342/5

Radar reflector

145
342/12

Chaff

71
342/7

Corner

60
342/9

Decoy or tow target

45
342/8

Inflatable or collapsable

48
342/10

Inflatable or collapsable

63
342/6

With modulation

81
342/11

With spherical lens (e.g., luneberg lens)

27
342/42

Radar transponder system

520
342/43

Combined with primary radar system

100
342/45

Iff or sif

194
342/46

Navigational

133
342/47

Distance measuring equipment (dme)

96
342/48

With automatic lock-on

12
342/49

With vor/tacan

29
342/51

Radar transponder only

447
342/44

Unique identity

420
342/50

With telemetry

151
342/1

Radio wave absorber

275
342/2

For aircraft or missile

81
342/3

For camouflage

80
342/4

With particular geometric configuration

219
342/61

Return signal controls external device

216
342/63

Aircraft guidance

114
342/64

With map matching

103
342/65

With terrain avoidance or alarm

136
342/66

Camera

30
342/69

Device actuated by presence of land vehicle

35
342/67

Gun (e.g., fire control)

68
342/62

Missile or spacecraft guidance

307
342/68

Proximity fuze

108
342/70

Radar mounted on and controls land vehicle

1144
342/71

With control of brakes or steering

280
342/72

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

166
342/73

Return signal controls radar system

117
342/74

Antenna control

155
342/81

Beam direction by phase or frequency control

149
342/75

Physical orientation

130
342/78

Conical scan

23
342/79

Lobe switching

11
342/80

Monopulse

82
342/76

With ground tracking

17
342/77

With signal error correction

54
342/89

Receiver

453
342/90

Automatic target detection

368
342/98

Frequency

63
342/99

Doppler frequency tracking

112
342/101

With filter control

61
342/100

Wtih local osillator control

75
342/102

Phase

30
342/103

Phase locked loop

104
342/91

Gain or threshold

227
342/92

Automatic gain control (agc)

123
342/93

Constant false alarm rate (cfar)

162
342/94

Gating

153
342/95

Automatic range tracking

209
342/96

Automatic track while scan (atws)

99
342/97

With automatic lock-on

92
342/82

Transmitter

192
342/83

Signal phase or frequency other than pulse repetition frequency (prf)

53
342/85

Function of distance

65
342/87

With constant beat frequency

20
342/86

With constant phase

10
342/84

Function of doppler frequency

40
342/88

Transmission timing (e.g., ring around)

47
342/41

Ship collision avoidance

81
342/25R

Synthetic aperture radar

273
342/25A

Mapping or imaging using synthetic aperture radar (epo)

283
342/25C

Combined with monopulse or interferometric (epo)

80
342/25F

Particular sar processing techniques (e.g., squint mode, doppler beam-sharpening mode, spotlight mode, bistatic sar, inverse sar) (epo)

200
342/25B

Specially adapted for moving target detection (epo)

50
342/25D

With frequency domain processing of the sar signals in azimuth (epo)

83
342/25E

With time domain processing of the sar signals in azimuth, e.g. time focusing (epo)

27
342/165

Testing or calibrating of radar system

434
342/173

By monitoring

392
342/174

Calibrating

588
342/169

By simulation

149
342/171

Doppler

63
342/170

Microwave

56
342/172

With delay

71
342/166

Proximity fuze

7
342/167

With laser

10
342/168

With noise generation

12
342/22

Transmission through media other than air or free space

566
342/60

Transmitting intelligence

76
342/175

With particular circuit

1261
342/187

Augmenter

24
342/199

Automatic frequency control (afc)

55
342/194

Complex signal (in phase and quadrature)

475
342/195

Digital processing

1385
342/196

Fast fourier transform (fft)

624
342/197

With video quantizer

74
342/176

Display

314
342/181

Color

72
342/182

Electronic marker generation

75
342/183

Cursor

31
342/179

Image production

442
342/177

Plural

8
342/178

Projection type

4
342/185

Scan conversion

120
342/180

Stereoscopic or tridimensional

84
342/184

With stabilization (e.g., true motion, true north)

12
342/186

With sweep expansion

5
342/189

For correlation

301
342/200

For frequency modulation

126
342/201

Combined with pulse modulation

214
342/202

For pulse modulation

168
342/203

With noise reduction

80
342/204

With pulse shaping

79
342/198

For receiver protection

61
342/205

Sensitivity time control (stc)

54
342/192

Spectrum analysis

461
342/193

Harmonic

76
342/188

With polarization

231
342/190

With recording

75
342/191

Mapping

138
 
 
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