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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

245
342/37

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

146
342/38

With altitude information

43
342/40

With defruiting or degarbling

56
342/39

With side lobe suppression

27
342/29

Aircraft collision avoidance system (cas)

335
342/30

With transponder

147
342/32

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

121
342/31

Including synchronized clock

12
342/33

Aircraft landing system

137
342/34

Ground control approach (gca)

28
342/35

Microwave landing system (mls)

50
342/21

Base band system

143
342/23

Berthing or docking

22
342/24

Blind aid

24
342/159

Clutter elimination

621
342/160

Mti (moving target indicator)

221
342/162

Digital

252
342/163

With blind speed elimination

28
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

291
342/56

With direction finding

40
342/53

With infrared device

170
342/54

With laser

192
342/57

With radio voice communication

79
342/55

With television

88
342/58

With transmission to a remote station

130
342/147

Determining direction

313
342/156

Interferometer

90
342/155

Lobe switching

41
342/148

Low angle processing

49
342/149

Monopulse

214
342/154

Combined with beam steering

81
342/151

With channel equalization

41
342/150

With common if channel

32
342/153

With particular antenna or waveguide

83
342/152

With quadrature difference processing

83
342/158

Scanning

166
342/157

With frequency or phase steering

161
342/118

Determining distance

677
342/120

Altimeter

174
342/122

Fm type

67
342/121

With additional indicator

32
342/146

Combined with determining direction

257
342/123

Height finder

74
342/124

Material level within container

263
342/119

Miss distance indicator (mdi)

27
342/127

Phase comparison

187
342/126

Triangulation

157
342/145

With correlation

192
342/128

With frequency modulation

372
342/133

Combined with determining direction

113
342/129

Plural frequencies transmitted

128
342/130

Plural modulation

84
342/131

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

71
342/132

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

164
342/134

With pulse modulation

245
342/139

Combined with determining direction

86
342/141

Off boresight

19
342/140

With azimuth and elevation determination

94
342/142

With crt display

13
342/143

Plural

0
342/144

Ppi type

4
342/135

Digital (e.g., with counter)

209
342/136

With plural fixed range gates

37
342/138

With type "a" or "j" range scope

2
342/137

With variable pulse repetition frequency (prf) or pulse width

147
342/125

With remote cooperating station

170
342/104

Determining velocity

332
342/106

Combined with determining acceleration

55
342/113

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

84
342/107

Combined with determining distance and direction

229
342/108

With correlation

79
342/109

Combined with determining distance

315
342/110

With plural fixed range gates

39
342/112

With plural frequencies transmission

57
342/111

With plural receiver frequency band separation

70
342/114

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

148
342/115

Digital

242
342/105

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

74
342/117

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

48
342/116

With plural received frequency band separation

53
342/350

Directive

78
342/385

Beacon or receiver

65
342/417

Direction-finding receiver only

214
342/418

Doppler

97
342/448

Having a coil or loop type antenna

45
342/443

Having a direction indicator

60
342/441

Having a goniometer

14
342/449

Having a moving antenna

26
342/442

Having a phase detector

227
342/447

Having a spiral antennas

9
342/445

Having more than two antennas

91
342/446

Unequal distance between at least three antennas

17
342/444

Having plural receivers

79
342/419

Portable

77
342/428

With continuously movable antenna pattern

15
342/431

Including a goniometer

6
342/429

Including a stationary antenna

16
342/430

Including plural moving antennas

23
342/420

With error or deviatioan compensator or eliminator

43
342/421

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

9
342/432

With plural fixed antenna pattern comparing

77
342/440

Including a goniometer

12
342/439

Including combined effect indicator

10
342/437

Including more than two antennas

32
342/438

Including separate indicators

6
342/433

Successively commutated

34
342/435

By diode switching

12
342/436

By modulation

15
342/434

Including more than two antennas

37
342/422

With self-orienting antenna pattern

44
342/425

Conical scan antenna type

16
342/427

Monopulse or pseuodo monopulse tracking antenna type

79
342/423

Plural antennas

60
342/424

Tracking interferometer

120
342/426

Step track antenna type

19
342/386

With transmisson of bearing or position determinative signals

173
342/407

Fixed course or bearing indicating

23
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

1
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

190
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

31
342/397

Decca

6
342/396

Omega

17
342/395

With hetrodyne synchronization

3
342/398

Rotating beacon signal

35
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

10
342/351

Including a radiometer

108
342/352

Including a satellite

391
342/353

Having a signal repeater

84
342/356

Synchronous satellite

111
342/354

With beam steering

245
342/355

With control of satellite altitude

66
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

193
342/368

Including a steerable array

663
342/377

Including a computer

199
342/376

Including a remote energy source

65
342/369

Injection radiation type

15
342/370

Retrodirective

46
342/375

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

299
342/373

With a matrix

459
342/374

With a switch

365
342/371

With electronic scanning

175
342/372

Controlled

705
342/359

Including antenna orientation

421
342/360

Including antenna pattern plotting

131
342/367

Including directive communication system

200
342/361

Including polarized signal communication transmitter or receiver

193
342/365

Circular

45
342/366

Eliptical

14
342/362

Receiver only

88
342/363

Circular

43
342/364

Eliptical

11
342/450

Position indicating (e.g., triangulation)

566
342/451

By computer

338
342/453

By deflected or repeated signal

128
342/452

By plotting table

34
342/458

Distance

268
342/463

Having plural transmitters or receivers

454
342/465

Plural receivers only

279
342/464

Plural transmitters only

190
342/457

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

891
342/460

Storm or atomic explosion location

67
342/454

Traffic

64
342/455

Having collision avoidance

226
342/456

Having traffic control

87
342/459

Underground object location

55
342/462

With altitude determination

45
342/461

With speed determination

50
342/378

Utilizing correlation techniques

347
342/384

Difference of each antenna channel signal

49
342/379

Side lobe elimination

143
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

116
342/383

Sum of each antenna signal

212
342/59

Plural radar

239
342/27

Presence detection only

536
342/28

By motion detection

337
342/13

Radar ew (electronic warfare)

472
342/20

Detection of surveilance

256
342/16

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

174
342/17

Radar reacts to jamming

108
342/18

By changing frequency

32
342/19

By varying gain or blocking receiver

41
342/14

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

225
342/15

With repeater

106
342/26R

Radar for meteorological use (epo)

247
342/26D

Ground based (epo)

147
342/26B

Mounted on aircraft (epo)

200
342/26A

Mounted on satellite (epo)

38
342/26C

Mounted on ship (epo)

22
342/5

Radar reflector

137
342/12

Chaff

70
342/7

Corner

58
342/9

Decoy or tow target

42
342/8

Inflatable or collapsable

48
342/10

Inflatable or collapsable

63
342/6

With modulation

80
342/11

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

25
342/42

Radar transponder system

504
342/43

Combined with primary radar system

99
342/45

Iff or sif

188
342/46

Navigational

127
342/47

Distance measuring equipment (dme)

94
342/48

With automatic lock-on

12
342/49

With vor/tacan

28
342/51

Radar transponder only

443
342/44

Unique identity

409
342/50

With telemetry

148
342/1

Radio wave absorber

269
342/2

For aircraft or missile

79
342/3

For camouflage

77
342/4

With particular geometric configuration

211
342/61

Return signal controls external device

195
342/63

Aircraft guidance

103
342/64

With map matching

97
342/65

With terrain avoidance or alarm

128
342/66

Camera

27
342/69

Device actuated by presence of land vehicle

35
342/67

Gun (e.g., fire control)

67
342/62

Missile or spacecraft guidance

288
342/68

Proximity fuze

108
342/70

Radar mounted on and controls land vehicle

1083
342/71

With control of brakes or steering

273
342/72

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

164
342/73

Return signal controls radar system

106
342/74

Antenna control

147
342/81

Beam direction by phase or frequency control

143
342/75

Physical orientation

122
342/78

Conical scan

23
342/79

Lobe switching

11
342/80

Monopulse

82
342/76

With ground tracking

16
342/77

With signal error correction

54
342/89

Receiver

440
342/90

Automatic target detection

351
342/98

Frequency

58
342/99

Doppler frequency tracking

108
342/101

With filter control

61
342/100

Wtih local osillator control

69
342/102

Phase

30
342/103

Phase locked loop

98
342/91

Gain or threshold

220
342/92

Automatic gain control (agc)

121
342/93

Constant false alarm rate (cfar)

158
342/94

Gating

152
342/95

Automatic range tracking

203
342/96

Automatic track while scan (atws)

96
342/97

With automatic lock-on

92
342/82

Transmitter

185
342/83

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

49
342/85

Function of distance

63
342/87

With constant beat frequency

20
342/86

With constant phase

10
342/84

Function of doppler frequency

38
342/88

Transmission timing (e.g., ring around)

46
342/41

Ship collision avoidance

76
342/25R

Synthetic aperture radar

247
342/25A

Mapping or imaging using synthetic aperture radar (epo)

270
342/25C

Combined with monopulse or interferometric (epo)

78
342/25F

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

189
342/25B

Specially adapted for moving target detection (epo)

48
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

426
342/173

By monitoring

383
342/174

Calibrating

570
342/169

By simulation

144
342/171

Doppler

61
342/170

Microwave

55
342/172

With delay

69
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

527
342/60

Transmitting intelligence

74
342/175

With particular circuit

1197
342/187

Augmenter

24
342/199

Automatic frequency control (afc)

53
342/194

Complex signal (in phase and quadrature)

464
342/195

Digital processing

1347
342/196

Fast fourier transform (fft)

615
342/197

With video quantizer

74
342/176

Display

302
342/181

Color

71
342/182

Electronic marker generation

72
342/183

Cursor

31
342/179

Image production

416
342/177

Plural

8
342/178

Projection type

4
342/185

Scan conversion

119
342/180

Stereoscopic or tridimensional

80
342/184

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

12
342/186

With sweep expansion

5
342/189

For correlation

288
342/200

For frequency modulation

124
342/201

Combined with pulse modulation

213
342/202

For pulse modulation

163
342/203

With noise reduction

79
342/204

With pulse shaping

79
342/198

For receiver protection

61
342/205

Sensitivity time control (stc)

52
342/192

Spectrum analysis

442
342/193

Harmonic

75
342/188

With polarization

221
342/190

With recording

73
342/191

Mapping

128
 
 
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