摘要:
Disclosed herein is a playing apparatus for audio book and voice card, which is capable of acoustically playing contents of an audio book and a voice card used for education such as language learning. The playing apparatus for voice card and audio book comprises a voice card sensing unit, an audio book page sensing unit, a voice card transfer unit, a memory including a voice card information storing unit and an audio book information storing unit, a digital information processing unit, a speaker, and a MCU for controlling operation of all components. By providing a control method when the voice card is inserted during the output of the audio book, remaining data of the audio book can be output after a voice card playing mode is executed, without occurrence of errors due to a careless manipulation of the user. Accordingly, since the manipulation of the playing apparatus for audio book and voice card is very simple, even infants/babies can manipulate the playing apparatus easily and conveniently without the occurrence of errors.
摘要:
A teletext receiving device for converting a teletext letter information into Braille for the blind users. The device includes a Braille head for converting a letter similar to the teletext letter on CRT into Braille, Braille code converter for converting the teletext letter code into Braille code; and Braille head driver for driving Braille head by an output signal of Braille code converter.
摘要:
A crash acceleration pulse control block for a vehicle. An auxiliary mounting unit capable of adjusting a crash contact area while serving as a bumper is installed at a front portion of a radiator lower member to obtain reliable initial crash acceleration of the vehicle. This is an important factor for determining the deployment of the airbag, even if the engine specification and the vehicle weight are changed, thereby accurately deploying an airbag according to the sensing operation of an airbag sensor when a vehicle accident occurs.
摘要:
A method and device are provided for controlling movement of an optical pick-up unit. The method includes a) moving the optical pick-up unit toward a target position of an optical disc; b) while the optical pick-up unit is in motion, detecting a load voltage of a driver for moving the optical pick-up unit and detecting a counted value of the driver's output pulses generated as the driver is activated; and c) determining whether the optical pick-up unit having been moved is positioned at a beginning point of the optical disc on the basis of a current load voltage of the driver and the counted value of the drive's output pulses.
摘要:
The electrostatic chuck comprises a chuck base for supporting a wafer, a dielectric film mounted on the chuck base, the dielectric film having an electrode for supplying direct current voltage to provide an electrostatic force to fix the wafer, the electrode disposed in the dielectric film, and a cooling channel for supplying refrigerant to the dielectric film to control the temperature of the wafer. At least two first cooling channel parts are formed at the surface of the dielectric film corresponding to the edge part of the wafer such that the first cooling channel parts form concentric circles, second cooling channel parts formed at the surface of the dielectric film such that the first cooling channel parts are connected to each other through the second cooling channel parts, first through channels formed through the dielectric film for supplying the refrigerant to the first and second cooling channel parts, and a second through channel formed through the center of the dielectric film for supplying the refrigerant to the center of the wafer.
摘要:
There is provided an actuator, an optical device, and an optical recording/reproducing apparatus. In the optical device, a first lens is fixed in an optical axis and a second lens, a movable member is supported by a shaft and slidable in an optical axis direction, and a second lens is formed on the movable member. The movable member is moved by interaction between a coil and a magnet.
摘要:
The lift apparatus includes a forward and rearward moving rail member mounted to a roof panel within a vehicle body to extend rearward from a position of a driver's seat by a predetermined distance. A leftward and rightward moving rail member is mounted to the roof panel to extend sideward from a rear end of the forward and rearward moving rail member by a preselected distance. A lifter is movable along the forward and rearward moving rail member and the leftward and rightward moving rail member and capable of lifting and holding the seat and lowering and releasing the seat. A rotating device is installed at an intersection of the forward and rearward moving rail member and the leftward and rightward moving rail member, for rotating the lifter by a predetermined angle.
摘要:
A spherical aberration compensation actuator and an optical pickup system are provided. The spherical aberration compensation actuator mounts an element for compensating a spherical aberration and operates to a single-axis direction on an optical path using electromagnetic force. The optical pickup system includes a laser diode, an object lens, a spherical aberration compensation actuator, an optical path changer, and an optical detector. The spherical aberration compensation actuator is installed on an optical path between the laser diode and the object lens and includes a lens holder having a spherical aberration compensation element for compensating a spherical aberration generated due to light passing through the object lens and operating in an optical-axis direction using electromagnetic force.