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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

30
720/689

Chassis base supporting transducer carriage

25
720/691

Adjustment of chassis base

14
720/690

Pivotable into reproducing or recording position

33
720/692

Vibration or resonance suppression

58
720/693

Grommet and coil spring

16
720/694

Viscoelastic material

16
720/659

Having power driven optical transducer assembly

56
720/662

Arcuate transducer assembly movement

36
720/663

Linear transducer assembly movement

61
720/664

Rack gear

34
720/665

Backlash prevention

14
720/666

Voice coil

43
720/669

Plural transducers for a single disc side

15
720/670

Independently movable transducers

9
720/660

Sensor detecting position of optical transducer

22
720/661

Single motor drives optical transducer and at least one other component

19
720/668

Single optical transducer plays both sides of disc record

17
720/667

Turntable moves linearly and simultaneously with the optical transducer assembly

11
720/695

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

64
720/701

Having balancer

23
720/702

Having balls

32
720/703

Optical storage disc holding structure

46
720/706

Details of clamping

100
720/711

Clamp for different types of disk

25
720/714

Linear movement

25
720/710

Magnetic

81
720/712

Particular shape

37
720/713

Pivoting mechanism

39
720/707

Radially extending members

100
720/709

Having groove or channel

22
720/708

Using balls

12
720/704

Having centering

80
720/705

Using balls

8
720/715

Optical storage disc contact structure on turntable surface

41
720/716

Having dampening

17
720/717

Reducing eccentricity

19
720/696

Spindle motor exterior structure

40
720/698

Dampening

35
720/697

Mounting detail

50
720/699

Multiple disks on one spindle

9
720/700

Turntable adjustment

33
720/671

Protecting optical transducer

49
720/672

Transducer carriage or actuator

49
720/681

Adjustable objective lens support

71
720/686

Circular leaf spring

10
720/687

Dampening or resonance suppression

10
720/682

Linear leaf springs

42
720/683

Coil or magnet

121
720/684

Dampening or resonance suppression

37
720/685

Electrical connection detail

31
720/674

Adjusting transducer carriage

51
720/675

By guide rail or rod

81
720/673

Locking of transducer carriage

49
720/676

Supported by linear guide rail or rod

66
720/677

Rail attachment to base

30
720/679

Rail dampening or resonance suppression

28
720/678

Specific rail material

9
720/680

Transducer carriage supported by roller bearings

20
720/688

Vibration or resonance suppression

36
720/718

Optical storage medium structure

226
720/720

Disk adapter

53
720/725

Disk cartridge

62
720/728

Disc cartridge case or jacket

95
720/729

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

60
720/732

Movable cartridge case or jacket piece

12
720/733

In a linear direction

49
720/734

In a rotated direction

32
720/735

Including a case or jacket piece locking member

33
720/730

Preventing cartridge misinsertion

29
720/731

Including misinsertion groove

15
720/736

Sealed cartridge

18
720/726

Disk cartridge material

28
720/727

Having reinforcement member

20
720/737

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

35
720/738

Shutter member

87
720/739

Having guide slots or projections for movement of shutter

89
720/740

Having shutter locking member

39
720/744

Shutter material

23
720/742

Shutter movement is gear driven

21
720/743

Shutter spring mechanism for opening or closing

31
720/741

Shutter within disk container

34
720/721

Disk hub

41
720/722

Hub material or composition

33
720/723

Including clamping plate

13
720/724

Providing a centering protrusion or projection

24
720/719

Disk protection

105
720/745

Optical card record

17
720/746

Optical tape record

11
720/600

Particular cabinet structure for optical media

120
720/652

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

84
720/627

Capable of alternatively accepting protected or unprotected insertable single optical medium

13
720/628

Inserted through single slot

18
720/629

Unprotected media inserted protected

8
720/630

Capable of only accepting protected insertable single optical medium

36
720/636

Ejection mechanism

39
720/638

Having ejection arm

32
720/637

Having locking mechanism

19
720/641

Guide mechanism

23
720/639

Locking mechanism

31
720/631

Misinsertion mechanism or sensor

31
720/640

Pivotable cartridge holder

30
720/643

Shutter opening mechanism

38
720/644

Sliding mechanism

17
720/642

Surface loading (e.g., rollers)

8
720/632

Transferring mechanism

77
720/633

Horizontal transference during insertion

34
720/634

Vertical transference into the play position

20
720/635

Having cam

43
720/617

Capable of only accepting unprotected insertable single optical medium

13
720/626

Detecting physical characteristics or location of optical medium

63
720/619

Loading of optical medium

114
720/620

Edge loading

71
720/622

Guide mechanism

64
720/623

Movable guide

114
720/621

Roller mechanism

45
720/624

Surface loading (e.g., rollers)

59
720/625

Having non-cylindrical roller

15
720/618

Optical card

10
720/646

Details of exterior front face

85
720/647

Door mechanism

124
720/645

Detecting physical characteristics and location of optical medium

43
720/648

Environmental control

94
720/649

Cooling

54
720/650

Emi shielding or electrical grounding

33
720/651

Vibration suppression

108
720/653

Internal component conveyed outside housing

35
720/657

Locking or latching of cabinet or components within cabinet

55
720/654

Modular mounting

41
720/655

Particular cover or lid for enclosing media

77
720/656

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

31
720/601

Tray or drawer loading or ejecting

168
720/604

Clamping or chucking media structure

83
720/605

Pivotable chassis mounted turntable or pickup

34
720/602

Controlling acceleration, deceleration or speed

34
720/611

Damped tray

31
720/609

Manual tray ejector

27
720/615

Multiple media loading

70
720/616

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

51
720/614

Multiple trays

56
720/613

Particular tray guide

61
720/612

Pivotal tray or tray holder

35
720/607

Rack or pinion

66
720/606

Sensing tray position or media loading

62
720/608

Single multi-purpose driving source

36
720/610

Tray locking

67
720/603

Tray recess

49
 
 
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