181results about How to "Unnecessary operation" patented technology

Techniques for managing data in a non-volatile memory system (e.g., Flash Memory) are disclosed. A controller can use information relating to a host's filing system, which is stored by the host on non-volatile memory, to determine if one or more clusters (or sectors with clusters) are currently allocated. The controller can use the information relating to the host's filing system to ensure that one or more clusters (or one or more sectors within a cluster) are not copied from one location to another location in the memory during a garbage collection cycle. As a result, some unnecessary operations (e.g., copying data) which are conventionally performed can be avoided and system performance can be enhanced.

A semiconductor device which stores data by using a transistor whose leakage current between source and drain in an off state is small as a writing transistor. In a matrix including a plurality of memory cells in which a drain of the writing transistor is connected to a gate of a reading transistor and the drain of the writing transistor is connected to one electrode of a capacitor, a gate of the writing transistor is connected to a writing word line; a source of the writing transistor is connected to a writing bit line; and a source and a drain of the reading transistor are connected to a reading bit line and a bias line. In order to reduce the number of wirings, the writing bit line or the bias line is substituted for the reading bit line in another column.

In a shop POS register terminal, a settlement request-generating unit generates settlement request information, which includes an amount of settlement. A request barcode is generated from the settlement request information, and the POS register terminal displays or prints the information. In a cell phone, the camera restores the settlement request information through the request barcode image. The amount of settlement is subtracted from a value charged to an IC chip. Settlement response information is generated, which includes the balance after settlement of the IC chip. Then a response barcode is generated from the settlement response information, and causes the cell phone to display the same. In the POS register terminal, the response barcode is read out to restore the settlement response information. Then an IC card settlement-ending unit confirms and causes the POS register terminal to print the receipt.

In the shop POS register terminal, the settlement request generating unit generates settlement request information including an amount of settlement upon receipt of an operational input of IC card settlement; and the request barcode generating unit generates a request barcode from the settlement request information, and causes the POS register terminal to display on the screen or to print for output. In the cell phone, the request barcode restoring unit images the request barcode by the camera; the IC card settlement unit subtracts the amount of settlement of the restored settlement request information from the value charged to the IC chip of the cell phone; the settlement response generating unit generates settlement response information including a balance after settlement of the IC chip; and the response barcode generating unit generates a response barcode from the settlement response information, and causes the cell phone to display the same on the screen. In the POS register terminal, the response barcode restoring unit reads out the response barcode to restore the settlement response information; the IC card settlement ending unit confirms the end of the IC card settlement from the restored settlement response information, and causes the POS register terminal to print the receipt for output.

An event processing system that can perform processing corresponding to event messages certainly, and improve efficiency of processing event messages.To that end, the event processing system of the present invention holds event messages, which are received owing to state transitions of an IT service system, in an event message holding unit in order of issue. Among the event messages held in the event message holding unit, the event processing system searches for an event message for which a state of the IT service system after issue of the event message in question coincides with a state of the IT service system before issue of the oldest event message in the event message holding unit. When the event processing system can retrieve the event message in question, the event processing system deletes event messages ranging from the oldest event message to the retrieved event message from the event message holding unit.

A battery pack is communicated with a luggage compartment via an outlet such that cooling air that has been heat transferred with a battery is released into the luggage compartment. A ventilation hole is formed in a rear portion of the luggage compartment. An inlet is opened toward the outside of the vehicle. An exhaust fan that discharges the cooling air at the temperature increased through heat transfer with the battery in the battery pack is provided to the front of the ventilation hole.

A heartbeat period determination method and apparatus of a push service in a wireless network is provided. The heartbeat period determination method for a push service in a terminal of a wireless network includes transmitting a registration request message including terminal information and network information to a registration server, receiving a registration reply message including ping interval information from the registration server, establishing a push channel with the push server, and determining the heartbeat period using the received ping interval information.

A method for inviting an Instant Messaging (IM) user to join an online game is provided. An inviter generates a first instant message according to an online game selected by an inviter user, and sends the message to an invitee, where the first instant message contains description information describing the online game selected by the inviter user; after receiving an instant confining message returned by the invitee, which indicates that the invitee user agrees to join, the inviter requests according to the description information of the online game selected by the inviter user the game server of the online game to allocate game resources; after the game server successfully allocates the game resources, the inviter and the invitee respectively add the inviter user and the invitee user to the online game provided by the game server. The inviter is thus prevented from performing unnecessary operations.

A method, system, apparatus, and computer-readable medium are provided for implementing caching in a data storage system. According to aspects of the invention, a cache module is provided that utilizes cache lines sized according to a snapshot chunk size or an allocation unit size. The cache module utilizes cache header data structures corresponding to cache lines, each of which is assigned a device and logical block access range when active. The active headers are arranged in a set of hash queues. A free queue corresponds to the list of unused cache headers and a dirty queue corresponding to a list of unflushed cache headers. The cache header contains sector-level bitmaps of the cache line, specifying on a per sector granularity the bits that are dirty and valid. Flushing is performed by copying the dirty bitmap into a temporary memory location and flushing the bits set in it, while resetting the dirty bitmap and allowing writes to it. A read-ahead algorithm is used to perform read-ahead operations only in the event of a sequential read.

There is provided a content use management method capable of preventing unauthorized distribution of a content and improving user-friendliness. In this method, the same group key is stored in a secure device (400) and a playback terminal (500). Moreover, a license issuing application is received from a license distribution server (200) and stored in the secure device (400). After this, a license encrypted by the group key is sent to the playback terminal (500) and the license encrypted by the group key is stored in the playback terminal (500). Upon playback of the encrypted content, the playback terminal (500) decrypts the license by using the group key and acquires the content decryption key, thereby decrypting the encrypted content. Even when the encrypted license flows into the network, it cannot be decrypted by a playback terminal not having the same group key and the copyright is protected. Moreover, the playback terminal (500) which already holds the group key and the license encrypted by the group key does not need the secure device when reproducing the encrypted content.

An automotive vehicle defogging system prevents dissipation of energy required to defog the automotive vehicle wind shield. A surface temperature sensor mounted on the wind shield detects the glass surface temperature. A humidity sensor spaced from the wind shield glass by a predetermined distance detects the humidity around the wind shield. A peripheral temperature sensor mounted inside from the wind shield glass detects peripheral temperature around the glass. Dew point temperature is obtained in response to the detected humidity H and a temperature value based on the temperatures detected by the surface and peripheral temperature sensors. The presence of fog is detected by comparing the dew point temperature with the surface temperature Ts.

A method for operating an internal combustion engine using an electrically operated air compressor that allows for heating up an exhaust-gas treatment device more rapidly. The electrically operated air compressor is activated during a starting process of the internal combustion engine.

A control part outputs a signal demanding an engine start when it is determined that a temperature of cooling water detected by a water temperature detector is lower than a threshold. In a normal state where conditioned-air is blown off to a predetermined seat and the other seats, the control part lowers the threshold according to an increase in a heat amount emitted from an auxiliary heating element based on the operating state of the auxiliary heating element. When a predetermined seat air conditioning command is provided to air-condition the predetermined seat, as a control of a predetermined seat state, the control part controls an opening-and-closing part to close an air outlet and further lowers the threshold rather than the threshold controlled in the normal state.

In one embodiment, the invention comprises a flash-media controller used for writing new data from an external system to a local flash-memory device. The newly written data may replace old data previously written to the flash-memory device, and may be written directly to unused locations within the flash-memory device. The flash-media controller may comprise a table of block descriptors and sector descriptors used to track specified characteristics of each block and sector of the flash-memory device, thereby allowing for write sequences to non-contiguous sectors within a block. Accordingly, copy operations may be deferred under the expectation that they will eventually become unnecessary, thereby designating old data as having become stale. Once all data within a block has been designated as being stale, the block may be marked as unused and may be made available for subsequent write operations, thereby providing fast write access to the flash-memory device, and significantly reducing the number of required copy operations during data transfer to the flash-memory device.

A recording medium, such as a high-density and / or optical recording medium including segment information recorded thereon, and apparatus and methods for recording to and reproducing from the recording medium, in order to improve data protection, data management and / or reproduction compatibility.

A matrix is formed using a plurality of memory cells in each of which a drain of the writing transistor is connected to a gate of a reading transistor and one electrode of a capacitor. A gate of the writing transistor, a source of the writing transistor, a source of the reading transistor, and a drain of the reading transistor are connected to a writing word line, a writing bit line, a reading bit line, and a bias line, respectively. The other electrode of the capacitor is connected to a reading word line. In order to decrease the number of wirings, the writing bit line is substituted for the reading bit line. The reading bit line is formed so as to be embedded in a groove-like opening formed over a substrate.

The invention relates to a method of producing and checking a double-resonator honeycomb acoustic panel. The aforementioned panel is characterised in that, following the assembly of the two honeycombs (30, 50) and the partition (40) and prior to the assembly of at least one of the two liners (20, 60), the perforation rate of said partition (42) is checked by scanning same with digital camera (84). The successive images (92) thus obtained are transmitted to a computer (94) which determines the perforation rate T of the partition (40) by applying formula T=N1 / N, wherein N1 is the number of pixels (100) that correspond to the holes (42b) and N is the number of pixels in the image (92).

A sample test automation system which is capable of reducing the workload of an operator and precisely carrying out necessary processes of each of samples without stagnation. In the sample test automation system, a sample tray 120 on which a plurality of samples 150 can be installed is prepared, an identifier for distinguishing the sample tray 120 is attached to the sample tray 120, a sample introducing unit 10 is provided with an identifier reading apparatus 111 which reads the identifier of the sample tray 120, and information about the samples 150 is switched based on the read identifier of the sample tray 120.

A recording medium, such as a high-density and / or optical recording medium including physical access control (PAC) information recorded thereon, and apparatus and methods for recording to and reproducing from the recording medium, in order to improve data protection, data management and / or reproduction compatibility.

An image forming apparatus that enables a post-processing apparatus to perform optimum control in accordance with the type (thickness) of sheet. A user sets on an image forming apparatus main unit 10 a thickness of sheet to be conveyed. A CPU circuit section 150 obtains first thickness-determination information used for the sheet conveying speed control in a finisher 500 from the finisher 500. A plurality of candidate sheet thicknesses that can be set, are determined based on the first thickness-determination information obtained by the CPU circuit section 150 and second thickness-determination information used when image-forming process speed control is performed in the image forming apparatus main unit 10 according to sheet thickness.

A display unit displaying an image and selection buttons on a display screen is provided, and a touch panel in which a desired position on the display screen can be specified is provided on the display unit. Furthermore, a coordinate detection unit and a button processing unit are provided. The coordinate detection unit detects coordinates of a position where a touch operation is performed on the touch panel. The button processing unit operates a tool corresponding to a selection button located at the coordinates and displayed on the display screen and performs a process of disabling a specification operation of a selection button newly displayed in a predetermined range including the coordinates and the vicinity thereof for a predetermined period of time.

A storage system which includes a cache memory needless of replacement of a power storage device, a cache memory with low power consumption, or a cache memory having no limitation on the number of writing operations is provided. An array controller for storing data externally input in any of a plurality of storage devices or a storage system including the array controller includes a processor which specifies at least one of the plurality of storage devices where the data is to be stored and a cache memory which stores the data and outputs the data to the at least one of the plurality of storage devices. The cache memory includes a storage circuit in which a transistor including an oxide semiconductor layer is used.

A vehicle control system includes a calculator that calculates an integrated controlled variable including a first controlled variable used for controlling the braking / driving force of each wheel so as to optimize the μ utilization ratio of the wheel and a second controlled variable used for controlling the steering angle of each wheel, based on constraints including a target resultant force to be applied to the vehicle body and a limit friction circle of each wheel, a calculator that calculates a steering controlled variable used for controlling only the steering angle of each wheel so as to achieve the target resultant force, and a controller that controls only the steering angle of each wheel, or the steering angle and braking / driving force of each wheel, based on a controlled variable obtained by linearly interpolating the integrated controlled variable and the steering controlled variable.

Disclosed is an automatic frequency band selection method in a multi-band supported mobile station. In the method, the mobile station checks a Mobile Country Code (MCC) and a Mobile Network Code (MNC) from system information when international roaming has occurred, selects a frequency band corresponding to the MCC and MNC checked from a frequency band information table as a search frequency band, the frequency band information table storing in advance information for frequency bands used according to each country / network, and searches for the selected frequency band, thereby performing network synchronization. According to the automatic frequency band selection method, frequency search time can be reduced, network registration can be performed more quickly when international roaming has occurred, and unnecessary operations can be omitted. Consequently, it is possible to prevent the battery from being wasted.