摘要:
The center of rotation of a disk medium 1 when servo information is written thereto coincides as accurately as possible with its center of rotation in the drive into which the disk medium 1 is assembled.The magnetic disk medium 1 is fixed to a spindle hub 4. A centering pin 8a of a push-aside mechanism 9 pushes aside the magnetic disk medium 1 with respect to the center of the spindle hub 4 until the disk-to-hub gap is moved to one side. Then, with a centering pin 8b of a come-back mechanism 10 placed in the same line intersecting with the center of the spindle, the magnetic disk medium 1 is pushed back to the opposite side.
摘要:
There is provided a radio communication device including a radio receiving unit to receive a radio signals, a synchronization unit to detect synchronization based on a result of a correlation for received signals output from the radio receiving unit, and a signal strength output unit to output, as signal strength of the received signals that is RSSI (Received Signal Strength Indicator) value, a level of a correlation signal that is output as a result of the correlation by the synchronization unit.
摘要:
In a semiconductor device, re-wiring is provided on a circuit element formation region of a semiconductor substrate. A columnar electrode for connection with a circuit board is provided on the rewiring. A first insulating film is provided over the semiconductor substrate excluding a connection pad, and a ground potential layer connected to a ground potential is provided on an upper surface of the first insulating film. A re-wiring is provided over the ground potential layer with a second insulating film interposed. The ground potential layer serves as a barrier layer for preventing crosstalk between the re-wiring and circuit element formation region. A thin-film circuit element is provided on the second insulating film, and a second ground potential layer is provided as a second barrier layer over the thin-film circuit element with an insulating film interposed. Re-wiring is provided over the second ground potential layer.
摘要:
In one embodiment a wireless communication device is provided that: acquires a phase rotation angle in the propagation channel which phase rotation angle is contained in a received symbol and that performs rotation compensation of the acquired phase rotation angle for the received symbol; generates a coordinate value of the respective I, Q axis in the signal constellation on which the information of the respective reference signal point is set; for the respective transmission bit, obtains respective probabilities that the transmission bit is 0 and 1 by making a distance determination of the distance between the received symbol after the rotation compensation and the respective reference signal level on only one of the I and Q axes; and makes a likelihood determination of the bit value of the respective transmission bit in accordance with a probability value obtained.
摘要:
An intake gasket to be inserted between a cylinder head and a manifold, comprising an intermediate rib member with a three-layer structure formed from a central thin metal plate and rubber layers provided on first and second sides of the central thin metal plate, first and second metal plates disposed on first and second sides of the intermediate rib member, and elastic metal substrates disposed on both sides of the metal plates, the intermediate rib member comprising a first rib formed around the periphery thereof and a second rib formed around the periphery of a fluid passage hole, wherein a space is formed by the rib of the intermediate rib member and the metal plates.
摘要:
A high-pressure processing apparatus includes a processing vessel including a processing chamber formed therein to perform a certain process onto an object in the processing chamber; fluid feeding means which feeds a high-pressure fluid into the processing chamber; fluid discharging means which discharges the high-pressure fluid from the processing chamber; an agitating unit which is arranged in the processing chamber and is operative to flow the high-pressure fluid over the object by relative rotation to the processing vessel; a communicating channel which is formed in the processing vessel to communicate inside and outside of the processing chamber; a rotary driving member which is coupled to the agitating unit via a shaft portion provided in the communicating channel; and a sealing portion which is provided between the shaft portion and the processing vessel to disconnect the processing chamber from the rotary driving member. The fluid discharging means includes a fluid discharging port formed in a certain position of the communicating channel closer to the processing chamber than the sealing portion to discharge the high-pressure fluid.
摘要:
An authentication apparatus is provided. The authentication apparatus acquires a plurality of pieces of registration authentication information each of which is unique to an authentication target. These pieces of registration authentication information are based on biological information obtained from different and the same kind of parts of a living body of a registered user. The authentication apparatus also acquires biological information from a part of the living body selected by a user, and then generates personal authentication information based on the biological information acquired. The authentication apparatus subsequently arranges a collation order of the plurality of pieces of registration authentication information, and then sequentially collates the plurality of pieces of registration authentication information with the personal authentication information in accordance with the collation serial numbers. After that the authentication apparatus notifies an external section of the authentication target whose registration authentication information corresponds to the personal authentication information as an authentication target successfully authenticated.
摘要:
For the purpose of efficient transmission based on the UWB system, first and second baseband waveforms are generated at a cycle equivalent to an integral multiple of a carrier to have a specified phase difference from each other. The first baseband waveform is multiplied by the carrier and a first transmission data sequence to acquire a first transmission waveform. The second baseband waveform is multiplied by a phase shifted carrier and a second transmission data sequence to acquire a second transmission waveform. The first transmission waveform is mixed with the second transmission waveform to acquire a transmission signal. The transmission signal is transmitted as a π/2 shift BPSK signal to transmit a UWB signal. Selecting the baseband waveforms and the carrier makes it possible to configure the transmission band and easily provide division multiplexing transmission.
摘要:
Disclosed is a wireless communication apparatus for receiving a code-spread transmission signal. The wireless communication apparatus includes: an RF section; and a baseband section, wherein, in the baseband section, despreaders of an integral submultiple, which is 1/n1, of the number of chips of a spread code are arranged in parallel, and there is provided a propagation measurement section that measures a propagation channel by using the plurality of despreaders a plurality of times in a time-division manner and performing despread of each period corresponding to a chip rate of the spread code.
摘要翻译:公开了一种用于接收码扩展传输信号的无线通信装置。 无线通信装置包括:RF部分; 以及基带部分,其中在基带部分中并行布置扩展码的码片数目为1 / n 1的整数倍的解扩器,并且提供 传播测量部分,其以时分方式多次使用多个解扩频器来测量传播信道,并且对与扩展码的码片速率相对应的每个周期执行解扩。
摘要:
A communication apparatus including: a despreading section despreading a reception signal with a spreading code defined in one communication system; a decoding section decoding the reception signal despread by the despreading section; and a first occupation detection section correlatively detecting an occupation state of a communication band with a preamble code defined in the communication system; and a second occupation detection section correlatively detecting an occupation state of a communication band of a signal of another communication system, the signal being expected to arrive as an interference wave, with a preamble code defined in the another communication system.