Abstract: A recording medium has a first recording area on which recording information is recorded as a set of recording units, and a second recording area on which control information for controlling the recording information to be recorded on the first recording area is recorded. Identifying information for identifying a management condition of the recording information recorded on the first recording area is also recorded on the second recording area at every recording unit.

Abstract: An information editing apparatus for editing a reproduction manner of record information which is recorded on an information storage medium and includes at least one picture information, includes: a selecting unit for selecting a partial record information from the record information, the partial record information being part of the record information and including at least one picture information; a designating unit for designating a reproduction timing of the selected partial record information; an extracting unit for extracting the picture information included in the partial record information as a representative picture information indicative of the partial record information; and a recording unit for recording one of the extracted representative picture information and a designation information indicative of a recorded position on the information storage medium of the representative picture information and the designated reproduction timing on the information storage medium as a reproduction control info

Abstract: A near field optical apparatus comprising a conductive sheet or plane having an aperture therein with the conductive plane including at least one protrusion which extends into the aperture. The location, structure and configuration of the protrusion or protrusions can be controlled to provide desired near field localization of optical power output associated with the aperture. Preferably, the location, structure and configuration of the protrusion are tailored to maximize near field localization at generally the center of the aperture. The aperture preferably has a perimeter dimension which is substantially resonant with the output wavelength of the light source, or is otherwise able to support a standing wave of significant amplitude. The apparatus may be embodied in a vertical cavity surface emitting layer or VCSEL having enhanced nearfield brightness by providing a conductive layer on the laser emission facet, with, a protrusion of the conductive layer extending into an aperture in the emission facet.

Abstract: An apparatus includes a beam deflection portion for deflecting the electron beam to change an irradiation position of the electron beam; a synchronization signal generation portion for generating a synchronization signal which is in synchronization with the rotation of the substrate; a controller for controlling the beam deflection portion on the basis of the synchronization signal in order to deflect the electron beam in a rotational radial direction of the substrate and in a rotational tangential direction of the substrate opposite to a rotational direction of the substrate, while drawing transition is performed from one circle to another circle; and a beam cutoff portion for cutting off the irradiation of the electron beam on the substrate, for a period during the electron beam is deflected in the rotational radial direction.

Abstract: The present invention provides a system for causing an optical beam to impinge on a spot on an optical medium, while keeping an optical head apparatus in an essentially stationary position, such that it eliminates the need for a tracking function to move an optical head apparatus in order to direct an optical beam between tracks or to an location on the optical medium.

Abstract: A recording medium has a first recording area on which multiplexed audio informations are recorded as sets of one or more information units, a second recording area on which control information for controlling recording of the multiplexed audio informations are recorded. The control informations include first information representing the number of sets of information composing the multiplexed audio informations, and second information instructing to record the multiplexed audio informations as a stream.

Abstract: A system controller is provided so as to record the second disk type information having the same content as that of the first disk type information, which is recorded in a DVD-R in advance, in a DVD-R in which the first disk type information is recorded as well as to record the record information in the DVD-R and reproduce the record information only if the first disk type information and the second disk type information have the same contents each other upon reproducing the record information.

Abstract: The present invention is directed to an amplifier, which is able to re-configure its internal protection circuits based on an output signal level. This allows the amplifier to apply the best protection level to the present operational condition. The protection level or threshold for protecting the amplifier is dynamically adjusted to a lower threshold level, thereby making it more sensitive in certain operating scenarios. In one embodiment of the present invention, a first current protection threshold is used to operate an amplifier in a first state. If an event occurs, the amplifier protection circuit is re-configured and the amplifier continues to operate with a second protection threshold in a second state.

Abstract: A writable optical disc has an information writing track, and a guiding track for introducing a laser beam to the information writing track. The guiding track has prepit information recorded thereon, the prepit information including at least address information of the optical disc. The prepit information is recorded on the guiding track at a position where interference of adjacent guiding tracks with the prepit information is prevented. The information writing track is a groove track, and the guiding track is a land track.

Abstract: The present invention obtains a more optimal focus in at least two dimensions (such as axial and radial dimensions) by setting or keeping a focus in at least a first dimension (such as both axial and radial dimensions) and detecting and adjusting the focus in a second dimension (such as radial dimension) so that it can be brought to the same focal plane as the focus for the at least first dimension (such as both axial and radial dimension). An actuator lens assembly is used to continually adjust the focus for either primarily the first dimension or primarily the second dimension, using a feedback loop. In one embodiment of the present invention, certain photocell(s), (such as photocells E and F that are normally used for tracking) are compared to certain photocell(s), (such as photocells A and B and C and D) in order to derive a Radial Focus Error (RFE) signal, by observing radial spot size.

Abstract: A single monolithic semiconductor substrate comprises a first side and a second side. The first side includes an air bearing surface. A laser integrates with the first side. The laser has an emission facet substantially co-planer with the air bearing surface. A contact pad on the second side electronically bridges to the laser.

Abstract: The present invention comprises an apparatus and method for recording information on a multi-layer diffractive optics memory to extend storage capacity. A composite mirror device comprises a plurality of sets of mirror elements. Each one of the mirror elements of the sets is configured to direct a reference beam to a point of the multi-layer memory at one of a plurality of angles. A plurality of planes is associated with the plurality of sets. There is one plane per set, each plane being defined for each of the sets of mirror elements so that the paths formed from the mirror elements of the set to the point lie in the plane. Each of the planes is separated from its neighbor by an angle selected to avoid crosstalk.

Abstract: A beam adjusting sample having a flat surface being like a plate and having two edges orthogonal to each other is employed. A beam is applied to the beam adjusting sample to detect an amount of the beam passing through the beam adjusting sample. The beam vertically scans the two edges.

Abstract: A petabyte diffractive storage system stores information on a diffractive storage tape. A light component generates a large reference beam to cover the plurality of points of the diffractive storage tape so as to simultaneously interfere with the plurality of object beams creating a plurality of packets of information at the plurality of points. Also disclosed is a terabyte diffractive storage that system reads information from a diffractice storage disk having a plurality of tracks. A plurality of micro-mirrors directs the read beam to one of said plurality of tracks.

Abstract: A master memory device that stores a plurality of pages of information. An unexposed memory device (190) is adjacent to the master memory device (180). The unexposed memory device and the master memory device are separated by a gap. An aperture unit (130) is disposed in the gap. The aperture has a plurality of aperture openings. Each opening corresponds, in size, to an individual page constitutes of a column with specific multiplexing angles of memory in the master memory device. The aperture unit is located across a face of the master memory device such that the openings correspond to selected ones of the pages of information. A light source (120) generates a beam that transfers memory data from the master memory device to the unexposed memory device.

Abstract: A pipeline video decoder and decompression system handles a plurality of separately encoded bit streams arranged as a single serial bit stream of digital bits and having separately encoded pairs of control codes and corresponding data carried in the serial bit stream. The pipeline system employs a plurality of interconnected stages to decode and decompress the single bit stream, including a start code detector. When in a search mode, the start code detector searches for a specific start code corresponding to one of multiple compression standards. The start code detector responding to the single serial bit stream generates control tokens and data tokens. A respective one of the tokens includes a plurality of data words. Each data word has an extension bit which indicates a presence of additional words therein. The data words are thereby unlimited in number.

Abstract: The apparatus and method of the present invention employ solid state dynamic diffractive optical elements for reading information from a diffractive optics memory. The diffractive optics memory has stored therein information located at a plurality of points of the memory and at a plurality of angles at each one of the points so as to form a plurality of packets of information at each of the points. A matrix of the dynamic diffractive optical elements is configured to shape a laser beam to address the memory at one of the angles of one of the points to reconstruct one of the packets of information.

Abstract: A first holographic data storage device has a first set of holograms stored thereon. A second holographic data storage device has a second set of holograms stored thereon. An opaque layer is disposed between and attached to one side of the first and the second holographic data storage devices. In the case of double reflective diffractive recording, the opaque layer is not necessary.

Abstract: A parallel recording of diffractive storage system is provided. The recorded information is cellular for its designation. A laser beam is data modulated through a single reference beam and a plurality of object beams positioned at different angles. These object beams intersect the reference beam within a recording medium to form a plurality of data loaded pattern simultaneously.

Abstract: An apparatus for providing sector location pulses to a controller of a rotating disk data storage device having a counter clocked in proportion to the disk rotation rate and an accumulator for accumulating times to sectors on the disk. A comparator connected to the counter and the accumulator enables an accumulator clock for repetitive clocking of the accumulator at such times the contents of the accumulator do not exceed the contents of the counter. A sector location pulse generator connected to the comparator generates the controller pulses, when enabled, concurrently with the accumulator clock signals. A master reset generator resets the first counter and the accumulator each time an index location on the disk passes a transducer head used to read and write data to and from the disk and a partial reset generator resets the accumulator each time the transducer head is moved between tracks on the disk.