摘要:
A detector is scanned across an optical storage medium having groove tracks and land tracks, each track having a wobble structure, to detect light reflected from the optical storage medium. A wobble signal and a tracking error signal are generated based on an output of the detector, and the wobble signal is sampled according to the tracking error signal. A determination about whether the detector is at the groove track or the land track is made based on the tracking error signal and a comparison of sampled values of the wobble signal.
摘要:
The invention provides a method for controlling spherical aberration correction for an optical disk drive. First, a collimator lens is moved to a first target position for spherical aberration correction. A driving time of motion of the collimator lens is then calculated. A prohibiting time is then determined according to the driving time. The collimator lens is then prevented from moving until the prohibiting time elapses.
摘要:
A plug assembly has a cylindrical barrel portion, a plug, a driving shaft and a mounting cap. The cylindrical barrel portion has a rear end and a stop. The plug is mounted rotatably within the cylindrical barrel portion. The driving shaft is mounted securely on the rear end of the plug, rotates simultaneously with the plug and has a body. The body is attached to the rear end of the plug and has a non-circular cross section, a rear end and a driving hole defined coaxially in the rear end of the body of the driving shaft. The mounting cap is mounted around the driving shaft and has a front end and a limiting notch defined in the front end of the mounting cap. The stop on the cylindrical barrel portion is received in the limiting notch in the mounting cap.
摘要:
A method of accessing an optical disc is disclosed. The method includes: enabling a focus servo control without enabling a tracking servo control, and then moving an optical pick-up unit in a radial direction of the optical disc; obtaining at least a first reference signal and a second reference signal according to a laser beam reflected from the optical disc when the optical pick-up unit is moving in the radial direction; and monitoring at least the first reference signal and the second reference signal to identify a boundary of a predetermined data area on the optical disc.
摘要:
A latch driving unit is assembled in an exterior knob assembly of a door lock. The latch driving unit includes a pin, a resilient member, a locking disk, a rotatable disk, a torsion spring, a cap and a strip. The strip removably extends through the cap, torsion spring, rotatable disk, locking disk, resilient member and the pin. If the strip is bent with an incorrect length, it can be removed from the latch driving unit and replaced with an intact strip. Thus, the exterior knob assembly is still useful after replacing the strip, and waste is avoided.
摘要:
A dynamic compensation device for radio frequency ripple signals of an optical storage system is disclosed. The device is composed of a radio frequency ripple signal process circuit, a radio frequency signal process circuit, a radio frequency signal peak detector, a first analog to digital converter, a second analog to digital converter, a defect detector, and a fingerprint detector. The drop-out of the central level of the radio frequency ripple signal is eliminated, and the track cross waveform is prevented from being damaged.
摘要:
A latch driving unit is assembled in an exterior knob assembly of a door lock. The latch driving unit includes a pin, a resilient member, a locking disk, a rotatable disk, a torsion spring, a cap and a strip. The strip removably extends through the cap, torsion spring, rotatable disk, locking disk, resilient member and the pin. If the strip is bent with an incorrect length, it can be removed from the latch driving unit and replaced with an intact strip. Thus, the exterior knob assembly is still useful after replacing the strip, and waste is avoided.
摘要:
A portable computer and docking station locking structure in which the docking station has a lock provided inside the support arm thereof controlled by a key or the like, and the portable computer has a lock hole in the back side adapted to receive the swivel locking member of the lock for enabling the portable computer to be locked to the docking station after setting of the portable computer in the support arm of the docking station.
摘要:
A coupling structure coupled between a base and a display panel is disclosed to include a pivot structure fixedly fastened to the base, a rotary platform pivotally coupled to the pivot structure for allowing rotation of the rotary platform on the pivot structure, a gear set, which includes a center gear fixedly fastened to the pivot structure and a left-side gear and a right-side gear pivotally mounted inside the rotary platform and meshed with the center gear at two sides respectively, the left-side and right-side gears each having the same number of teeth and a raised portion, and a hinge member, which is received inside the rotary platform and fixedly fastened to the display panel and has two elongated blind holes respectively coupled to the raised portions of the left-side gear and right-side gear.
摘要:
A method for forming a tungsten layer on a substrate surface is provided. In one aspect, the method includes positioning the substrate surface in a processing chamber and exposing the substrate surface to a soak. A nucleation layer is then deposited on the substrate surface in the same processing chamber by alternately pulsing a tungsten-containing compound and a reducing gas selected from a group consisting of silane, disilane, dichlorosilane and derivatives thereof. A tungsten bulk layer may then be deposited on the nucleation layer using cyclical deposition, chemical vapor deposition, or physical vapor deposition techniques.