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Class Information
Number: 360
Name: Dynamic magnetic information storage or retrieval >
Description: GENERAL STATEMENT OF THE CLASS SUBJECT MATTER


Class Number Class Name No. of Patents
360/69

Automatic control of a recorder mechanism

1162
360/75

Controlling the head

2348
360/76

Azimuth or skew

169
360/77.01

Track centering

155
360/77.12

Elongated web carrier (i.e., tape)

421
360/77.13

Transverse scan path

217
360/77.14

By pilot signal

172
360/77.15

Plural pilot signals along single transverse path

95
360/77.16

Having head deflection drive (e.g., piezoelectric bimorph)

166
360/77.17

Dithering

45
360/77.02

Rotary carrier

568
360/77.04

By memory storage of repeatable error or correction

535
360/77.03

By nonmagnetic sensing (e.g., optical, capacitive)

238
360/77.05

By servo signal component from carrier surface separate from information signal bearing surface

188
360/77.07

By tracking signal recorded on or immediately beneath surface

197
360/77.11

Continuous servo signal

81
360/77.08

Distinct servo sector

824
360/77.06

Reproduced data signal used for tracking

186
360/78.01

Track changing

54
360/78.04

For rotary carrier (e.g., disc)

740
360/78.14

By recorded servo reference or address signal

331
360/78.05

Coarse and fine head drive motors

184
360/78.15

Drum

5
360/78.09

Including model of servo system or element

275
360/78.11

Including nonmagnetic position sensing

113
360/78.12

Including particular head actuator

175
360/78.13

Stepping motor

137
360/78.08

Specified spatial pattern during access

105
360/78.06

Specified velocity pattern during access

317
360/78.07

Controlled by memory device

198
360/78.02

Tape

170
360/78.03

Plural tapes

9
360/71

Controlling the record

613
360/72.1

Locating specific areas

384
360/72.2

Responsive to recorded address

491
360/72.3

Responsive to tape transport

107
360/73.01

Speed

95
360/73.02

Control of relative speed between carriers

63
360/73.04

Linear carrier

133
360/73.09

Constant speed

65
360/73.11

By reproduced control signal and transport derived signal

63
360/73.12

By reproduced control signal

64
360/73.13

From separate track

30
360/73.14

By signal derived from transport

87
360/73.05

Plural speed transport

132
360/73.06

Automatic change between fixed speeds

101
360/73.07

Automatic selection of carrier or track speed

53
360/73.08

Variable speed

122
360/73.03

Rotary carrier

440
360/74.1

Stopping or reversing

363
360/74.4

Responsive to magnetic recorded signals

191
360/74.5

Responsive to physical property of record

24
360/74.7

Conductive

9
360/74.6

Photoelectric

72
360/74.2

Responsive to reel rotation

129
360/74.3

Responsive to tape tension

59
360/70

Synchronizing moving-head moving-record recorders

408
360/25

Checking record characteristics or modifying recording signal for characteristic compensation

343
360/32

Converting an analog signal to digital form for recording; reproducing and reconverting

647
360/900

Disk drive packaging

15
360/901

Access time

6
360/903

Physical parameter (e.g., form factor)

29
360/904

Weight

4
360/902

Storage density (e.g., bpi, tpi)

19
360/26

Electronically correcting phasing errors between related information signals

79
360/230

Fluid bearing head support

13
360/234

Disk record

21
360/234.3

Air bearing slider detail

71
360/235.4

Air bearing surface detail

106
360/236.9

Asymmetrical rail arrangement

32
360/236.4

Leading end detail

42
360/235.5

Negative pressure type

37
360/236.2

Asymmetrical rail arrangement

48
360/236

Cross rail detail

47
360/235.6

Leading end detail

88
360/235.9

Rail side edge detail

17
360/235.8

Rail surface detail

126
360/236.3

Three or more rails/pads

160
360/235.7

Trailing end detail

124
360/236.1

Varying width rail

77
360/237.1

Partial contact

51
360/236.7

Rail side edge detail

32
360/236.6

Rail surface detail

113
360/237

Three or more rails/pads

101
360/236.5

Trailing end detail

94
360/236.8

Varying width rail

47
360/234.5

Electrical attachment of slider/head

197
360/234.7

Head attachment to slider

132
360/234.9

In slot of rail

41
360/234.8

On/in side of slider

22
360/235

Signal winding mount/access detail

32
360/234.4

Ic/circuit component on slider

32
360/234.6

Mechanical attachment of slider to its support

123
360/235.1

Slider material

84
360/235.3

Body material

45
360/235.2

Rail material

62
360/234.2

Flexible disk

24
360/234.1

Liquid bearing

35
360/231

Tape record

3
360/220

Fluid bearing record support

3
360/224

Disk record

22
360/221

Tape record

21
360/221.1

Liquid bearing

0
360/39

General processing of a digital signal

334
360/49

Address coding

274
360/51

Data clocking

1274
360/52

With incremental movement between record and head

10
360/48

Data in specific format

1350
360/54

Data recirculation

38
360/53

Data verification

1010
360/46

Head amplifier circuit

1220
360/40

In specific code or form

422
360/44

Intra-cell transition

68
360/43

Multi-frequency

71
360/41

Nonreturn to zero

97
360/42

Phase code

49
360/50

Inter-record gap processing

75
360/45

Pulse crowding correction

167
360/47

Redundant or complimentary tracks

73
360/55

General recording or reproducing

320
360/58

Boundary displacement recording or transducers

7
360/60

Recording-or erasing-prevention

781
360/57

Selective erase recording

77
360/61

Signal switching

358
360/64

Between heads in alternate engagement with medium

352
360/63

Between plural stationary heads

200
360/62

Record-reproduce

172
360/66

Specifics of biasing or erasing

618
360/65

Specifics of equalizing

591
360/67

Specifics of the amplifier

611
360/68

Recording amplifier

368
360/59

Thermomagnetic recording or transducers

453
 

Head (340/110)

 
360/240

Head mounting

47
360/244

Disk record

30
360/245.8

Electrical connection detail

122
360/245.9

Flexible printed circuit type

281
360/246

Noise reduction

39
360/246.1

Full contact suspension

105
360/246.4

Gimbal detail

51
360/246.3

Pivot detail

54
360/246.5

Single head

4
360/246.2

Slider detail

81
360/245.3

Gimbal detail

137
360/245.4

Attachment detail

61
360/245.5

Integral with load beam

51
360/245.7

Motion limiter detail

98
360/245.6

Plural axis components

58
360/244.1

Ic/circuit component on suspension element

81
360/244.2

Load beam detail

123
360/244.5

Actuator mount region detail

135
360/244.7

Adhesive

16
360/244.6

Ball staking

73
360/245.2

Assembly feature

81
360/245

Gimbal mounting region detail

93
360/245.1

Pivot/load button detail

67
360/244.3

Laminated beam

99
360/244.4

Nonmetallic beam

20
360/244.9

Rigid intermediate section detail

121
360/244.8

Spring region detail

129
360/246.8

Offset heads on opposite sides of disk

56
360/246.6

Plural heads for each disk side

38
360/246.7

Plural actuators

19
360/290

For adjusting head position

15
360/294

Disk record

14
360/294.7

Adjustment along rotational axis of disk

115
360/294.1

Adjustment parallel to disk plane

56
360/294.3

Driver detail

91
360/294.4

Piezoelectric adjuster

233
360/294.5

Voice coil adjuster

52
360/294.2

Linear adjustment

22
360/294.6

Pivot structure detail

67
360/291

Tape record

57
360/291.1

Cam adjuster

10
360/291.4

Rotary head

7
360/291.6

Adjustable head mount

52
360/291.8

Adjuster coil detail

20
360/291.7

Adjuster core detail

23
360/291.9

Piezoelectric adjuster

36
360/292

Plural piezoelectric adjusters

20
360/291.5

Adjustment of drum axis

18
360/291.2

Screw adjuster

39
360/291.3

Plural screws

59
360/270

For moving head during transducing

14
360/274

Disk record

4
360/271

Tape record having rotary head

26
360/272

Power supply

11
360/271.1

Rotating drum

50
360/271.2

Axle bearing

25
360/271.3

Hydrodynamic

25
360/271.4

Axle seal

7
360/271.7

Drum motor

20
360/271.6

Drum mounting

36
360/271.5

Head mount to drum

87
360/281

Signal transfer to/from head

24
360/281.4

Coil/winding detail

18
360/282

Contact type transformer

1
360/281.5

Core detail

15
360/281.7

Electrical connection between head and rotary part of transformer

29
360/281.6

Electrical or magnetic shielding

14
360/281.9

Photoelectric

6
360/281.8

Plural transformers

8
360/281.2

Transformer axis parallel to axis of head rotation

18
360/281.3

Transformer axis perpendicular to axis of head rotation

19
360/281.1

Transformer mounting detail

14
360/271.8

Stationary drum

13
360/271.9

Electrical connection detail

11
360/250

For moving head into/out of transducing position

9
360/254

Disk record

12
360/254.2

Arcuate track change type

17
360/254.7

Fixed lifter

56
360/255

Actuator side detail

55
360/254.9

Adjustment detail

10
360/254.8

Lifter surface detail

70
360/254.3

Moving lifter

51
360/254.6

Actuator side detail

18
360/254.5

Adjustment detail

10
360/254.4

Lifter surface detail

19
360/254.1

Flexible disk

94
360/256

Latch

44
360/256.6

Adjustment detail

3
360/256.1

Air vane

39
360/256.3

Electrically driven

69
360/256.4

Inertial

59
360/256.2

Magnetic

114
360/256.5

Plural latches

8
360/255.1

Linear track change type

33
360/255.6

Fixed lifter

11
360/255.9

Actuator side detail

19
360/255.8

Adjustment detail

1
360/255.7

Lifter surface detail

13
360/255.2

Moving lifter

51
360/255.5

Actuator side detail

17
360/255.4

Adjustment detail

4
360/255.3

Lifter surface detail

14
360/251

Tape record having arcuate head retraction movement

52
360/251.1

Tape record having linear head retraction movement

89
360/251.3

Cam type

65
360/251.2

Driven by tape driver

28
360/251.5

Rotary head type

5
360/251.4

Solenoid type

30
360/260

For shifting head between tracks

15
360/264

Disk record

10
360/264.1

Arcuate head movement

37
360/265.2

Bearing

56
360/265.6

Mounting detail

96
360/265.4

Radial

7
360/265.3

Seal

7
360/265.5

Thrust

3
360/264.3

Driver detail

53
360/264.6

Band

24
360/264.4

Independent head movement

19
360/264.5

Plural drivers for each head

15
360/264.7

Voice coil

91
360/264.8

Core detail

66
360/264.9

Magnet detail

54
360/265

Winding detail

71
360/265.7

E block detail

113
360/265.9

Detail of actuator arm supporting head suspension

100
360/266.1

Arm mounting

75
360/266

Arm shape

56
360/265.8

Detail of coil support

61
360/264.2

Electrical connection detail onto actuator arm

187
360/265.1

Limiter/stop

87
360/267.9

Including shifting head to different disks

5
360/266.2

Linear head movement

42
360/267

Band

59
360/267.1

Cam

25
360/266.3

Electrical connection detail onto actuator arm

27
360/267.2

Rack

15
360/267.3

Screw

16
360/267.5

Carriage detail

20
360/267.6

Guide detail

29
360/267.7

Screw mount detail

13
360/267.8

Adjustable

9
360/267.4

Screw/follower detail

28
360/266.4

Voice coil

28
360/266.5

Carriage detail

53
360/266.6

Guide detail

57
360/266.7

Core detail

46
360/266.8

Magnet detail

29
360/266.9

Winding detail

32
360/261.1

Tape record having linear head movement

49
360/261.2

Cam

25
360/261.3

Screw

64
360/261

Tape record having rotary head movement

26
360/241

Tape record

24
360/241.3

Head urging detail

11
360/241.1

Plural head mounting on only one tape side

36
360/241.2

Plural head mounting on opposite tape sides

1
360/101

Head transport with record stationary during transducing

58
360/110

Head

227
360/116

Cathode ray

3
360/118

Erase

113
360/111

Flux gate

25
360/115

Flux scanning

33
360/119

Gap structure details

363
360/121

Plural gaps

517
360/120

Spacer material

193
360/112

Hall effect

50
360/117

Hand-held

8
360/128

Head accessory

563
360/129

Housing

150
360/130.3

Pressure element

56
360/130.34

Disc record

76
360/130.31

Tape record

41
360/130.33

Element in tape container

68
360/130.32

Element mounting details

41
360/130.2

Record guide

30
360/130.21

Tape record

175
360/130.22

Rotating head

60
360/130.23

Helical scan

84
360/130.24

Head drum details

158
360/130.1

Record separator

13
360/125

Head core

620
360/126

Laminated

1415
360/127

Nonmetallic

144
360/122

Head surface structure

853
360/123

Head winding

419
360/124

For cross-talk prevention

60
360/313

Magnetoresistive (mr) reproducing head

228
360/318

Combined with inductive write head and having mr inside of inductive head

52
360/318.1

In horizontal head configuration

27
360/317

Combined with inductive write head in piggyback/merged configuration

506
360/320

Detail of head insulation

117
360/319

Detail of magnetic shielding

276
360/322

Detail of sense conductor

240
360/323

Electrostatic discharge (esd) protection

125
360/327

Having anisotropic magnetoresistive (amr) sensor formed of a single thin film

70
360/327.3

Detail of longitudinal biasing

34
360/327.31

Using a permanent magnet

50
360/327.33

Using conductor

7
360/327.32

Using exchange couple biasing

62
360/327.1

Detail of transverse and longitudinal biasing

28
360/327.11

In barber-pole configuration

11
360/327.2

Detail of transverse biasing

9
360/327.23

Using a permanent magnet

10
360/327.21

Using a shunt

8
360/327.22

Using a soft adjacent layer

42
360/327.24

Using conductor

9
360/325

Having anisotropic magnetoresistive (amr) sensor formed of multiple thin films

28
360/321

Having flux guide detail

133
360/326

Having giant magnetoresistive (gmr) or colossal magnetoresistive (cmr) sensor formed of a single thin film

36
360/324

Having giant magnetoresistive (gmr) or colossal magnetoresistive (cmr) sensor formed of multiple thin films

226
360/324.1

Having one film pinned (e.g., spin valve)

385
360/324.12

Detail of free layer or additional film for affecting or biasing the free layer

666
360/324.11

Detail of pinned film or additional film for affecting or biasing the pinned film

532
360/324.2

Having tunnel junction effect

422
360/316

Having multiple independent mr sensors

80
360/314

Having multiple interconnected multiple film mr sensors (e.g., dual spin valve magnetoresistive sensor)

127
360/315

Having multiple interconnected single film mr sensors (e.g., dual magnetoresistive sensor)

95
360/328

Magnetostrictive head

24
360/114.01

Read only detector using light for reading magnetically recorded information on tape

12
360/114.04

Beam splitter detail

3
360/114.02

Light beam generator detail

1
360/114.03

Focus detail

4
360/114.05

Readout detector detail

12
360/114.07

Circuit detail

5
360/114.08

Detector material detail

8
360/114.06

Focus detail

9
360/114.09

Mounting detail

6
360/114.1

Rotary head

0
360/4

Manual input recording

32
360/137

Miscellaneous

1046
360/29

Modulating or demodulating

134
360/30

Frequency

106
360/31

Monitoring or testing the progress of recording

943
360/15

Record copying

364
360/16

Contact transfer

136
360/17

With magnetic bias

188
360/13

Record editing

282
360/131

Record medium

283
360/135

Disk

1045
360/136

Drum

238
360/132

In container

1472
360/133

For disk

1240
360/134

Tape

482
360/81

Record transport with head moving during transducing

21
360/82

Belt record

3
360/86

Disk record

150
360/87

Drum record

11
360/83

Tape record

24
360/84

Rotating head

307
360/85

Tape in container

683
360/88

Record transport with head stationary during transducing

46
360/97.01

Disk record

794
360/99.12

Disk seating

415
360/97.02

Environmental control (e.g., air filter, temperature control)

826
360/97.04

Flexible disk

41
360/97.03

Plural disks

231
360/99.01

Flexible disk

141
360/99.05

Disk seating

193
360/99.02

Loading or ejecting mechanism

243
360/99.03

Motorized

47
360/99.04

Rotational drive detail

175
360/99.06

Loading or ejecting mechanism

478
360/99.07

Motorized

95
360/98.01

Plural disks

244
360/98.02

Axially fixed flexible disks

48
360/98.03

With pneumatic partioning of disks

36
360/98.04

Changer

92
360/98.05

Control detail

48
360/98.06

Mechanical detail

121
360/98.07

Rotational drive detail

306
360/98.08

Seating of disks

256
360/99.08

Rotational drive detail

709
360/99.09

Movable drive

26
360/99.11

Stationary drive

16
360/100.1

Drum record

10
360/90

Tape record

183
360/91

Plural tapes

31
360/92

Tape in container

645
360/93

Tape in container

359
360/96.1

Plural reels

121
360/96.5

Container mounting details

697
360/96.6

With pivotal holder

158
360/96.3

Reel drive details

278
360/96.4

With common capstan drive

85
360/96.2

With dual capstan drive

63
360/94

Transport accommodates different types

222
360/95

With tape extraction

455
360/89

Wire record

2
360/79

Recorder control of an external device

72
360/80

Slide or movie projectors

29
360/6

Recording combined with metering or sensing

71
360/8

Recording for changing duration, frequency or redundant content of an analog signal

195
360/7

Recording for monetary delay of an analog signal

34
360/5

Recording for selective retention of a special occurrence

114
360/1

Recording on or reproducing from an element of diverse utility

79
360/2

Card

293
360/3

Motion picture film

67
360/27

Recording or reproducing an information signal and a control signal for controlling electronics of reproducer

365
360/28

Reference carrier to control demodulator

20
360/12

Recording or reproducing for automatic announcing

91
360/18

Recording or reproducing plural information signals on the same track

177
360/20

Frequency multiplex

32
360/21

Head gap azimuth multiplex

58
360/22

Splitting one information signal for recording on plural distinct tracks or reproducing such signal

153
360/23

Time division

38
360/24

Splitting, processing and recombining one information signal for recording or reproducing on the same track

44
 
 
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