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Class Information
Number: 720
Name: Dynamic optical information storage or retrieval >
Description: GENERAL STATEMENT OF THE CLASS SUBJECT MATTER


Class Number Class Name No. of Patents
720/658

Dynamic mechanism optical subsystem

22
720/689

Chassis base supporting transducer carriage

17
720/691

Adjustment of chassis base

10
720/690

Pivotable into reproducing or recording position

25
720/692

Vibration or resonance suppression

43
720/693

Grommet and coil spring

16
720/694

Viscoelastic material

15
720/659

Having power driven optical transducer assembly

42
720/662

Arcuate transducer assembly movement

31
720/663

Linear transducer assembly movement

51
720/664

Rack gear

26
720/665

Backlash prevention

12
720/666

Voice coil

41
720/669

Plural transducers for a single disc side

11
720/670

Independently movable transducers

9
720/660

Sensor detecting position of optical transducer

20
720/661

Single motor drives optical transducer and at least one other component

12
720/668

Single optical transducer plays both sides of disc record

16
720/667

Turntable moves linearly and simultaneously with the optical transducer assembly

9
720/695

Optical storage medium support (i.e., turntable or spindle motor)

38
720/701

Having balancer

19
720/702

Having balls

20
720/703

Optical storage disc holding structure

35
720/706

Details of clamping

78
720/711

Clamp for different types of disk

20
720/714

Linear movement

15
720/710

Magnetic

62
720/712

Particular shape

22
720/713

Pivoting mechanism

25
720/707

Radially extending members

56
720/709

Having groove or channel

13
720/708

Using balls

9
720/704

Having centering

64
720/705

Using balls

5
720/715

Optical storage disc contact structure on turntable surface

36
720/716

Having dampening

13
720/717

Reducing eccentricity

15
720/696

Spindle motor exterior structure

29
720/698

Dampening

28
720/697

Mounting detail

28
720/699

Multiple disks on one spindle

8
720/700

Turntable adjustment

29
720/671

Protecting optical transducer

29
720/672

Transducer carriage or actuator

35
720/681

Adjustable objective lens support

46
720/686

Circular leaf spring

7
720/687

Dampening or resonance suppression

5
720/682

Linear leaf springs

34
720/683

Coil or magnet

94
720/684

Dampening or resonance suppression

31
720/685

Electrical connection detail

25
720/674

Adjusting transducer carriage

49
720/675

By guide rail or rod

66
720/673

Locking of transducer carriage

44
720/676

Supported by linear guide rail or rod

56
720/677

Rail attachment to base

15
720/679

Rail dampening or resonance suppression

19
720/678

Specific rail material

7
720/680

Transducer carriage supported by roller bearings

17
720/688

Vibration or resonance suppression

25
720/718

Optical storage medium structure

178
720/720

Disk adapter

52
720/725

Disk cartridge

51
720/728

Disc cartridge case or jacket

87
720/729

Having disc identification (e.g., write protect hole or tab)

58
720/732

Movable cartridge case or jacket piece

10
720/733

In a linear direction

48
720/734

In a rotated direction

31
720/735

Including a case or jacket piece locking member

30
720/730

Preventing cartridge misinsertion

23
720/731

Including misinsertion groove

14
720/736

Sealed cartridge

14
720/726

Disk cartridge material

26
720/727

Having reinforcement member

19
720/737

Movement prevention or static reduction (e.g., antirattle, protective sheets)

35
720/738

Shutter member

80
720/739

Having guide slots or projections for movement of shutter

83
720/740

Having shutter locking member

32
720/744

Shutter material

21
720/742

Shutter movement is gear driven

18
720/743

Shutter spring mechanism for opening or closing

28
720/741

Shutter within disk container

27
720/721

Disk hub

35
720/722

Hub material or composition

29
720/723

Including clamping plate

13
720/724

Providing a centering protrusion or projection

22
720/719

Disk protection

86
720/745

Optical card record

16
720/746

Optical tape record

10
720/600

Particular cabinet structure for optical media

99
720/652

Arrangement of internal or external components (e.g., space optimization)

49
720/627

Capable of alternatively accepting protected or unprotected insertable single optical medium

13
720/628

Inserted through single slot

14
720/629

Unprotected media inserted protected

8
720/630

Capable of only accepting protected insertable single optical medium

31
720/636

Ejection mechanism

33
720/638

Having ejection arm

28
720/637

Having locking mechanism

15
720/641

Guide mechanism

20
720/639

Locking mechanism

26
720/631

Misinsertion mechanism or sensor

30
720/640

Pivotable cartridge holder

29
720/643

Shutter opening mechanism

36
720/644

Sliding mechanism

17
720/642

Surface loading (e.g., rollers)

7
720/632

Transferring mechanism

71
720/633

Horizontal transference during insertion

32
720/634

Vertical transference into the play position

18
720/635

Having cam

41
720/617

Capable of only accepting unprotected insertable single optical medium

5
720/626

Detecting physical characteristics or location of optical medium

38
720/619

Loading of optical medium

76
720/620

Edge loading

46
720/622

Guide mechanism

43
720/623

Movable guide

58
720/621

Roller mechanism

33
720/624

Surface loading (e.g., rollers)

37
720/625

Having non-cylindrical roller

9
720/618

Optical card

10
720/646

Details of exterior front face

60
720/647

Door mechanism

96
720/645

Detecting physical characteristics and location of optical medium

37
720/648

Environmental control

75
720/649

Cooling

36
720/650

Emi shielding or electrical grounding

25
720/651

Vibration suppression

81
720/653

Internal component conveyed outside housing

26
720/657

Locking or latching of cabinet or components within cabinet

45
720/654

Modular mounting

34
720/655

Particular cover or lid for enclosing media

61
720/656

Reproducing diverse-type media (e.g., cartridge and disc)

28
720/601

Tray or drawer loading or ejecting

109
720/604

Clamping or chucking media structure

54
720/605

Pivotable chassis mounted turntable or pickup

27
720/602

Controlling acceleration, deceleration or speed

25
720/611

Damped tray

25
720/609

Manual tray ejector

20
720/615

Multiple media loading

46
720/616

Of diverse media type (e.g., disc and cartridge)

48
720/614

Multiple trays

30
720/613

Particular tray guide

40
720/612

Pivotal tray or tray holder

30
720/607

Rack or pinion

59
720/606

Sensing tray position or media loading

51
720/608

Single multi-purpose driving source

35
720/610

Tray locking

48
720/603

Tray recess

37
 
 
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