| Patent Number |
Title Of Patent |
Date Issued |
| RE39025 |
Lens device including a light controlling mechanism and an optical pickup apparatus using a lens |
March 21, 2006 |
| A lens device which can be used as an objective lens in an optical pickup apparatus includes an objective lens provided along a light path facing a disc and having a predetermined effective diameter, and light controlling means provided along the light path for controlling the light in a |
| 7263706 |
Disk cartridge and disk player using the same |
August 28, 2007 |
| A disk cartridge includes a case accommodating a disk, a cover installed at the case to be capable of being open and shut and having a hole formed thereon to be open to an outside of the cover, a shutter installed under the disk in the case to be capable of moving to open and shut an ope |
| 7124423 |
Disk cartridge to protect an information area of a disk from being contaminated |
October 17, 2006 |
| A disk cartridge includes a lower case having an opening formed thereon, an upper case installed at the lower case to be capable of being open and shut while pivoting, to accommodate a disk therebetween, a shutter installed at the lower case to be capable of sliding and opening and s |
| 7085212 |
Disk cartridge and disk drive apparatus |
August 1, 2006 |
| A disk cartridge and a disk drive apparatus. The disk cartridge has a reflector to identify the type of disk, and the disk drive apparatus has an optical emitter/detector to irradiate light on the reflector and detect light reflected from the reflector to identify the type of disk. A |
| 7072114 |
Optical pickup using an optical phase plate and which is compatible with optical recording media |
July 4, 2006 |
| An optical pickup apparatus having laser light sources emit a first light beam having a relatively shorter wavelength for a DVD and a second light beam having a longer wavelength for a CD-R, an objective lens having a focal length of an information recording surface in the DVD, an optica |
| 6985293 |
Optical pickup using an optical phase plate and which is compatible with optical media for diffe |
January 10, 2006 |
| An optical pickup apparatus having laser light sources emit a first light beam having a relatively shorter wavelength for a DVD and a second light beam having a longer wavelength for a CD-R, an objective lens having a focal length of an information recording surface in the DVD, an optica |
| 6938175 |
Computer system and method of controlling standby mode thereof |
August 30, 2005 |
| A computer system has a normal mode for performing its work in a normal and regular manner and a standby mode which progresses to a power saving mode after storing information about the state of the work in process in a memory. The computer system comprises: a power management controller |
| 6899937 |
Optical disc |
May 31, 2005 |
| An optical disc includes a substrate having micro-embossments, in which flat portions referred to as lands, and track guides, referred to as hills, and which protrude from the surfaces of the flat portions are formed. A reflective layer is formed on the substrate, a dielectric layer |
| 6791933 |
Optical pickup using an optical phase plate |
September 14, 2004 |
| An optical pickup apparatus having compatibility with a recodable compact disk (CD-R) and a digital video disk (DVD), which uses a wavelength of one of a first light beam and a second light beam according to the recording medium to be used. In the optical pickup apparatus, laser light so |
| 6600634 |
Micro actuator |
July 29, 2003 |
| A micro actuator for moving a head device in a track direction of a recording medium by a magnetic force generated between the magnetic cores. In normal use, the micro actuator is mounted on an actuator arm which pivots in a track direction across a track of the recording medium. The |
| 6590853 |
Swing arm driving type optical recording/reproducing apparatus |
July 8, 2003 |
| A swing arm driving type optical recording/reproducing apparatus includes a base, at least one optical disk rotatably installed on the base, both sides of which are information recording surfaces and a plurality of optical pickups which are equal in number to the information recording |
| 6584047 |
Pickup actuator |
June 24, 2003 |
| A pickup actuator capable of significantly reducing rolling of the area, including: a pickup base, a lens holder having an objective lens mounted thereon, and lens holder driving means for driving the lens holder in directions for focusing and tracking on the pickup base. The lens holder |
| 6535360 |
Disk drive head suspension assembly with microactuator |
March 18, 2003 |
| A head suspension assembly of a hard disk drive includes a rod beam coupled to an end portion of an actuator arm capable of pivoting in a direction following tracks of a disk, a slider supported at an end portion of the rod beam for reading and writing data from and on the disk, a micro |
| 6507554 |
Actuator for optical pick-up and method of rolling driving coil therefor |
January 14, 2003 |
| An actuator for an optical pick-up and a method of rolling a driving coil using the same. The actuator for the optical pick-up includes a bobbin for holding an object lens, a suspension for connecting the bobbin to a holder, and a magnetic driver. The magnetic driver includes a pair of |
| 6466529 |
Optical pickup assembly and method of detecting tilt |
October 15, 2002 |
| An optical pickup assembly having an elastically supported tilt mechanism. The optical pickup assembly includes a bobbin at which an objective lens is mounted and an elastic support member which supports the bobbin in elastic motion with respect to a holder installed at a base. A focus c |
| 6442124 |
Compatible optical pick-up apparatus for recording and reproducing information from recording me |
August 27, 2002 |
| An optical pick-up apparatus for recording and reproducing information from recording media using a first, second, and third light source to emit light beams having various wavelengths corresponding to a first, second and third recording media, respectively. A dichroic beam splitter has |
| 6400666 |
Optical pickup device |
June 4, 2002 |
| An optical pickup device includes a light source for generating and emitting light, optical path changing means for changing a proceeding path of incident light, an objective lens for focusing incident light on a recording medium which has a recording surface where information is rec |
| 6359850 |
Optical pickup having catadioptric objective lens |
March 19, 2002 |
| An optical pickup in which a light receptor and a light transmitter are integrated with a catadioptric objective lens. The optical pickup includes a unit for emitting laser light to a recording medium and detecting the light reflected from the recording medium. The catadioptric objective |
| 6275461 |
Optical pickup using an optical phase plate |
August 14, 2001 |
| A recording/reproducing apparatus includes an optical pickup device having an optical phase plate which is compatible with optical recording mediums having different thicknesses, and an optical signal processing device processes information read from the optical recording mediums and |
| 6272096 |
Optical pickup using an optical phase plate |
August 7, 2001 |
| An optical pickup apparatus having compatibility with a recodable compact disk (CD-R) and a digital video disk (DVD), which uses a wavelength of one of a first light beam and a second light beam according to the recording medium to be used. In the optical pickup apparatus, laser light so |
| 6222812 |
Optical pickup using an optical phase plate |
April 24, 2001 |
| An optical pickup apparatus having compatibility with a recodable compact disk (CD-R) and a digital video disk (DVD), which uses a wavelength of one of a first light beam and a second light beam according to the recording medium to be used. In the optical pickup apparatus, laser light so |
| 6114689 |
Optical pickup device |
September 5, 2000 |
| An optical pickup device includes a light module, emitting light and receiving light reflected from a recording medium, and a solid immersion lens (SIL) member disposed in an optical path between the light module and the recording medium. The SIL has a planar surface facing the recording |
| 6076169 |
Computer system having a screen saver with a power shutdown function and a control method thereo |
June 13, 2000 |
| This invention relates to a computer system having a screen saver with a power shutdown function and the control method thereof, comprising a timer for measuring time, an input device for inputting, and a controller for automatically terminating an operating system program when there has |
| 5987924 |
Lens mold and method of manufacturing a lens |
November 23, 1999 |
| A lens device which can be used as an objective lens in an optical pickup apparatus includes an objective lens provided along a light path facing a disc and having a predetermined effective diameter, and light controlling means provided along the light path for controlling the light in a |
| 5933401 |
Optical pickup having plural optical sources and plural optical detectors |
August 3, 1999 |
| An optical pickup capable of compatibly adopting disks of different formats which are placed in an optical player includes a first optical source for emitting light having a predetermined wavelength, a second optical source for emitting light having a wavelength different from that of li |
| 5822135 |
Lens device including a light controlling mechanism and an optical pickup apparatus using a lens |
October 13, 1998 |
| A lens device which can be used as an objective lens in an optical pickup apparatus includes an objective lens provided along a light path facing a disc and having a predetermined effective diameter, and light controlling means provided along the light path for controlling the light in a |
| 5805556 |
Optical pickup apparatus having a holographic optical element |
September 8, 1998 |
| An optical pickup apparatus for recording and reproducing information, which is manufactured to be extremely small in a hybrid type. The optical pickup apparatus includes a first holographic optical element as a beam expander for diffracting to enlarge a diverging angle of an incident be |
| 5665957 |
Lens device comprising light blocking means and an optical pickup apparatus using the lens devic |
September 9, 1997 |
| A lens device which can be used as an objective lens in an optical pickup apparatus includes an objective lens provided along a light path facing a disc and having a predetermined effective diameter, and light controlling means provided along the light path for controlling the light in a |
