Abstract: A surface acoustic wave device includes first interconnections and second interconnections connected to a potential different from a potential connected to the first interconnections that are arranged on a piezoelectric substrate. The first interconnections three-dimensionally intersect with the second interconnections with insulating layers made of a thermosetting resin, disposed therebetween. Interdigital electrodes defining IDTs are films which have six-fold rotational symmetric spots appearing in an XRD pole figure and which are defined by Al films or Al—Cu alloy films containing Cu in an amount not greater than the solubility limit at about 25° C.

Abstract: A noncontact communication apparatus is disclosed which includes: an antenna resonance circuit configured to have a coil for communicating with an opposite party through electromagnetic coupling; a changing block configured to change a Q-factor of the antenna resonance circuit; and a control block configured to control the antenna resonance circuit to transmit and receive data to and from the opposite party at one of a plurality of communication speeds prepared beforehand, the control block further controlling the changing block to reduce the Q-factor the higher the communication speed in use.

Abstract: According to one embodiment, an information processing apparatus with a display includes a wireless transfer module configured to receive an input operation request from an input operation module by use of a close proximity wireless transfer, and a controller configured to be connected to an external apparatus via the close proximity wireless transfer module, and to transit a mouse cursor displayed on the display to a display of the external apparatus in order to control the mouse cursor displayed on the display of the external apparatus with the information processing apparatus as a master.

Abstract: A magnetic head device performs a recording operation and a reproducing operation in a linear magnetic tape recording system having a plurality of tracks that are formed parallel to each other in a longitudinal direction of a tape. The magnetic head device includes a recording head block including a plurality of recording heads that are disposed in correspondence with respective tracks in a first area including the tracks that are adjacent to each other. The magnetic head device performs the recording operation on the tracks that are adjacent to each other at the same time with the recording head block.

Abstract: A magnetic recording and reproduction method includes the steps of recording a plurality of tracks which make a unit for a signal process for data detection by means of a recording head on a magnetic recording medium, and reproducing signals of the plural tracks by a plural number of times in different positional relationships to the tracks by means of a reproduction head which can reproduce a signal across the plural tracks of the magnetic recording medium, collecting the reproduction signals in the unit and performing a signal process for the unit to produce reproduction signals for the individual tracks.

Abstract: A wireless communication device is provided and includes: a first communication processing unit performing communication in an electromagnetic induction system by using a first antenna unit; a second communication processing unit performing communication at higher speed than the first communication processing unit by a system or a communication frequency different from the electromagnetic induction system by using a second antenna unit; and a power generation unit generating power at least for performing communication operations from a carrier signal received by the first antenna unit. The power is generated in the power generation unit by switching a frequency resonance characteristic of the first antenna unit.

Abstract: A communication apparatus includes a signal detection section that detects received information from a signal received through wireless communication. The signal detection section includes: a wave detection section that receives a signal in which the received information is superimposed on a carrier signal and that analyzes variations in an envelope of the received signal to generate a wave-detection signal containing the received information; an equalization processing section that corrects the wave-detection signal to output a corrected wave-detection signal; a detection section that receives the corrected wave-detection signal to detect the received information; and a training data detection section that detects from the received signal a training-data-detection sync signal allowing detection of training data utilized to optimize equalization characteristics of the equalization processing section.

Abstract: A communication apparatus includes a signal detector that detects incoming (i.e., receives) information from a signal received wirelessly. The signal detector includes a wave detector, an equalizer, and a detector. The wave detector accepts an incoming signal wherein information is modulated onto a carrier signal, analyzes the envelope variation of the incoming signal, and generates a detection signal containing the incoming information. The equalizer corrects the detection signal and outputs a corrected detection signal. The detector then detects the incoming information from the corrected detection signal.

Abstract: A communication device includes: a first communication processing unit performing contactless communication operations in a first communication rate in which waveform distortion hardly become a problem; a second communication processing unit performing contactless communication operations in a second communication rate in which waveform shaping by adaptive equalization is necessary; and a control unit controlling communication processing by the first and second communication processing units, wherein the first communication processing unit stores the contents of a packet received in the first communication rate, and the second communication processing unit, when receiving the packet of the same contents in the second communication rate, performs adaptive equalization processing by using the stored contents of the packet.

Abstract: A magnetic recording and reproducing apparatus is disclosed which includes: a recording device configured to record with a write head a plurality of tracks constituting a unit of signal processing for data detection, to magnetic recording media; a reproduction device configured to reproduce with a read head a plurality of reproduction signals concurrently from the plurality of tracks on the magnetic recording media in different positional relations to the tracks, the reproduction signals being arranged into that one unit for signal processing thereby generating the track-specific reproduction signals; and a phase alignment device configured to align phases of record signals between adjacent tracks among the plurality of tracks recorded by the recording device to the magnetic recording media.

Abstract: A magnetic recording/reproducing apparatus is disclosed wherein reproduced signals read out from a plurality of recording tracks using a reproducing head can be separated into original recording signals of the recording tracks. Upon recording, an identification signal which has a recording wavelength equal to or greater than a minimum recording wavelength and causes no interference of any of the recording tracks with any adjacent one of the recording tracks is appended to and recorded together with a recording signal in order to allow, upon reproduction, acquisition of the position information of the reproducing head with respect to the plural recording tracks of the magnetic recording medium. Upon reproduction, a reproduced signal for each of the recording tracks of the magnetic recording medium is generated on the basis of the positional information read from the recording tracks.

Abstract: According to one embodiment, an apparatus includes a receiving unit which receives a command according to pushing of a predetermined button of the buttons, a control unit which, if the command is received by the receiving unit, waits for a predetermined period before an operation corresponding to the command and controls an operation other than the operation corresponding to the command in accordance with a count of the command received during the period, and a display unit which displays a reproduction condition of the multimedia data controlled by the control unit.

Abstract: A magnetic recording and playback apparatus that is configured to carry out recoding on and playback of a tape-like recording medium using a magnetic head mounted on a rotating drum by employing helical scanning is provided. The apparatus includes a multi recording head configured to record a plurality of tracks while a head chip carries out one scanning operation and a multi playback head configured to obtain a plurality of playback signals while the head chip carries out one scanning operation. The multi playback head is disposed so that tracks overlap by one channel in the head-width direction. The tape transporting speed for playback is slower than the tape transporting speed for recording.

Abstract: When data is recorded onto a tape-shaped recording medium using N recording heads disposed on a rotary drum, of first and second series codes orthogonal to each other, the first series code is recorded by any one of the recording heads, and the second series code is recorded across N tracks formed by the N recording heads per revolution of the rotary drum. The redundancy rate of the second series code is set to 1/N or more. As a result, a recording apparatus and method can be provided, which can correct almost all errors at a ratio of one to N tracks even if one whole track of data is completely destroyed without increasing the redundancy rate.

Abstract: A magnetic recording/reproducing apparatus is disclosed wherein reproduced signals read out from a plurality of recording tracks using a reproducing head can be separated into original recording signals of the recording tracks. Upon recording, an identification signal which has a recording wavelength equal to or greater than a minimum recording wavelength and causes no interference of any of the recording tracks with any adjacent one of the recording tracks is appended to and recorded together with a recording signal in order to allow, upon reproduction, acquisition of the position information of the reproducing head with respect to the plural recording tracks of the magnetic recording medium. Upon reproduction, a reproduced signal for each of the recording tracks of the magnetic recording medium is generated on the basis of the positional information read from the recording tracks.

Abstract: A magnetic recording and reproduction method includes the steps of recording a plurality of tracks which make a unit for a signal process for data detection by means of a recording head on a magnetic recording medium, and reproducing signals of the plural tracks by a plural number of times in different positional relationships to the tracks by means of a reproduction head which can reproduce a signal across the plural tracks of the magnetic recording medium, collecting the reproduction signals in the unit and performing a signal process for the unit to produce reproduction signals for the individual tracks.

Abstract: A magnetic head device performs a recording operation and a reproducing operation in a linear magnetic tape recording system having a plurality of tracks that are formed parallel to each other in a longitudinal direction of a tape. The magnetic head device includes a recording head block including a plurality of recording heads that are disposed in correspondence with respective tracks in a first area including the tracks that are adjacent to each other. The magnetic head device performs the recording operation on the tracks that are adjacent to each other at the same time with the recording head block.

Abstract: A magnetic recording and reproducing apparatus is disclosed which includes: a recording device configured to record with a write head a plurality of tracks constituting a unit of signal processing for data detection, to magnetic recording media; a reproduction device configured to reproduce with a read head a plurality of reproduction signals concurrently from the plurality of tracks on the magnetic recording media in different positional relations to the tracks, the reproduction signals being arranged into that one unit for signal processing thereby generating the track-specific reproduction signals; and a phase alignment device configured to align phases of record signals between adjacent tracks among the plurality of tracks recorded by the recording device to the magnetic recording media.

Abstract: A memory space of a memory cell array is divided into a plurality of submemory spaces. A refresh control circuit executes a control of performing refreshment of information to the submemory spaces that are in use at the time of the refreshment of the information and need the refreshment among the plurality of submemory spaces and executes a control of not performing the refreshment to the submemory spaces that are not in use and do not need the refreshment.

Abstract: First, data is read from tracks formed on a tape-shaped recording medium by heads disposed on a rotary drum, to measure error rates. Next, of the tracks formed on the tape-shaped recording medium, a worst track suffering the highest error rate is detected based on the error rates thus measured. Then, a pair of reproducing heads that can reproduce the worst track thus detected at the lowest error rates is detected from the measured error rates. Thereafter, tracking servo control is performed such that the worst track can be scanned by the pair of reproducing heads. As a result, a reproducing apparatus capable of proper reproduction even when recorded tracks undergo variations in width and reproducing heads are erroneously mounted.