30results about How to "Erase block" patented technology

For an optical recording medium having a phase change type recording layer on it's a substrate and having as read only area and a writable area in a recording area, a data recording method is provided which records data in the writable area. This data recording method comprises a transfer step of transferring program data recorded in the read only area in a practical form to an external computer, and an execution step (step A10) of automatically executing the program data in the external computer to record data in the writable area, which can facilitate manufacturing and reduce the possible of destruction or falsification of ROM data.

The magnetic film includes an FeCo layer, restrains erasing data by a magnetic field leaked from a magnetic pole, has high saturation magnetic flux density and soft magnetism and writes data with high recording density. The magnetic film for a magnetic head of the present invention comprises: a nonmagnetic layer including at least one selected from a group of Ru, Rh, Ir, Cr, Cu, Au, Ag, Pt and Pd; a magnetic layer including Fe and Co. Anisotropy magnetic field is 0.8 kA / m or more.

An information communicating member is adapted to be disposed on a liquid container for supplying a liquid to a liquid ejecting head of a liquid ejection apparatus. The information communicating member includes: an information storing portion storing therein liquid information with regard to the liquid contained in the liquid container; an antenna portion for communicating the liquid information stored in the information storing portion between the information communicating member and the liquid ejection apparatus in a wireless manner; and a base member on which the information storing portion and the antenna portion are disposed. The base member has an electric insulating property and an ultraviolet ray shielding property.

A set of masks including an alternating phase shifting mask (APSM) and a halftone phase shifting trim mask (HPSTM) is provided. The APSM includes first and second phase shifting areas and a first opaque pattern. The first and second phase shifting areas are disposed adjacent to each other and have different phases for generating destructive interference. Further, the first and second phase shifting areas define an access interconnection line. The first opaque pattern is formed on a transparent substrate to define the first and second phase shifting areas. The HPSTM includes a second opaque pattern on the transparent substrate and a halftone pattern. The second opaque pattern prevents an access interconnection line from being erased. The halftone pattern defines a pass interconnection line connected to the access interconnection line.

A nonvolatile semiconductor memory device includes a memory array and an X-decode section. The memory array includes a plurality of nonvolatile memory cells arranged in a matrix form and a plurality of word lines. The X-decode section selects a selected word line selected from the plurality of word lines, supplies a negative voltage to the selected word line, and supplies a positive voltage to unselected word lines which are not the selected word line, at the time of an erase operation.

Embodiments of the invention provide a magnetic head which prevents data on a recording medium from being erased even when a stray field is applied. In one embodiment, an auxiliary pole is sandwiched between a stray-field shield composed of a magnetic layer recessed from the air bearing surface and a main pole. The stray-field shield may be formed on the leading side of the auxiliary pole. A face of the stray-field shield on a medium side may be recessed from an air-bearing-surface of the magnetic head.

A semiconductor device is operated by, inter alia: programming selected memory cells by applying a first program voltage which is increased by a first step voltage to a selected word line and by applying a first pass voltage having a constant level to unselected word lines, and when a voltage difference between the first program voltage and the first pass voltage reaches a predetermined voltage difference, programming the selected memory cells by applying a second program voltage which is increased by a second step voltage lower than the first step voltage to the selected word line and by applying a second pass voltage which is increased in proportion to the second program voltage to first unselected word lines adjacent to the selected word line among the unselected word lines.

A network system and a communication method are provided to solve an NAT problem to functionalize a P2P application in case that new port information (number is assigned to an NAT device. One communication device sends a pseudo-packet containing an address of another communication device, to a port information transmitting device via an address translation device; the port information transmitting device sends a response to the received pseudo-packet to the communication device; and the address translation device assigns new port information corresponding to the communication device address using the response and sends the address of the communication device and the assigned port information to the communication device. The communication device sends the received address of the communication device and the assigned port information to another communication device; and another communication device transmits information with the communication device using the received address of the communication device and the assigned port information.

A method for executing the power on self test (POST) on the computer system and a method for updating the SMBIOS information partially are provided for a computer system with a first memory and a second memory, wherein the first memory comprises a first storage block and a second storage block. A user can previously set the specific SMBIOS information in the second storage block. And during the POST stage, the default SMBIOS information in the BIOS code loaded from the first storage block to the second memory will be partially updated according to the specific SMBIOS information set by the user. As a result, the purpose of using the appropriated SMBIOS information to initiate the computer system can be achieved.

The present invention provides a thin film magnetic head capable of suppressing unintentional wiring to a neighboring track and preventing information recorded on a recording medium from being erased. A main magnetic pole layer is constructed so that height of a widened end surface in a lower main magnetic pole layer specifying a wide portion is smaller than height of an exposed surface in an upper main magnetic pole layer (front end portion) specifying a uniform width portion. Since the area of the widened end surface is narrowed with respect to the area of the exposed surface, even if an amount of magnetic flux flowing in the lower main magnetic pole layer increases at the time of recording information, as compared with the case where the height of the widened end surface is equal to the height of the exposed surface, unintentional emission of the magnetic flux flowing in the lower main magnetic pole layer from the widened end surface not via the upper main magnetic pole layer (front end portion) toward the recording medium is suppressed.

When a data is recorded to a recording medium, a miserasing preventing circuit determines whether or not a track jump is caused by a shock or a scratch. If it is caused by a shock, such as a quantity of light of an optical pick-up is controlled to change a reproducing state, and then the optical pick-up is moved to the rerecording position to start rerecording. As a result, recorded area is not disturbed, and the rerecording control is not performed by a little dust. Thereby, it can be provided an apparatus with high recording efficiency.

According to embodiments of the present invention, a shielded pole writer and a perpendicular magnetic recording medium suitable thereto are combined to provide high medium SNR and excellent OW characteristic simultaneously. A perpendicular magnetic recording medium of a magnetic storage apparatus mounting a shielded pole writer, including a perpendicular magnetic recording medium having a recording layer of a three layered structure is used. A first recording layer has a granular structure consisting of grain boundaries containing an oxide and columnar grains comprising a CoCrPt alloy, in which a second recording layer and a third recording layer formed thereabove comprise Co as a main ingredient, contain Cr and do not contain an oxide, and the Cr concentration in the second recording layer is lower than the Cr concentration in the third recording layer.

A content processing apparatus includes an MCU. The MCU determines whether or not an audio file exists in a flash memory when a USB connection operation is detected. If the determination result is affirmative, the audio file recorded on the flash memory is erased, and a USB connection process is executed. That is, the audio file recorded on the flash memory is erased between a time when the USB connection operation is performed and a time when the USB connection is established.

When a multilayered optical disc is used, the signal-to-noise ratio of a read signal is decreased as effective reflectance is extremely low due to the influence of reflection and absorption by front recording layers. Further, when a high-frequency modulation technology is used to suppress returned light noise of a laser, the erasure of recorded information is likely to occur on certain types of discs, making it difficult to simultaneously achieve the suppression of returned light noise of a laser and the prevention of the erasure of recorded information. To address the above problems, the present invention includes a section that performs a read by executing a multi-tone demodulation. The present invention also includes a section that controls the position and shape of a read light pulse to be radiated on a recording layer.