摘要:
In a data packet transmission method and an apparatus for realizing the method, data packet transmission/reception is performed between communication apparatuses each having a CPU for controlling an entire operation of the apparatus. An operating efficiency of the CPU of the communication apparatus on a reception side is detected when a data packet transmission/reception request is generated. An optimum data packet length for reception of a data packet is determined in correspondence with the detected operating efficiency, and the communication apparatus on a transmission side is informed of the optimum data packet length. The data packet to be transmitted is assembled to have the optimum data packet length, and the data packet is transmitted.
摘要:
A battery built-in wireless ID card unit including a magnetic field detection section which generates an electromotive force from a received magnetic field to turn on a power switch of a built-in battery, and a control section which transmits an ID code by radio after the power switch is turned on, thereby turning off the power switch.
摘要:
An IC memory card type radio modem includes a connecting portion, a radio section, a radio interface unit section, a channel selection circuit section, a terminal interface unit section, and a control section. The connecting portion can be connected to a PC card portion of a portable information processing device. The radio section is adaptable to at least one type of radio infrastructure. The radio interface unit section is adapted to the radio section. The channel selection circuit section is connected to the radio interface unit section. The terminal interface unit section is connected to the channel selection circuit section. The control section controls the plurality of radio sections. The radio interface unit section is controlled to always switch to a radio infrastructure which can perform communication.
摘要:
For use in combination with a data processing apparatus (50) which is provided with a card connecting portion for connecting a card-shaped device therewith, a portable telephone apparatus (20) has a card-shaped portion which can be connected to the card connecting portion instead of the card-shaped device. The data processing apparatus is for processing a datum. When the card-shaped portion is connected to the card connecting portion, the datum can be transferred between the data processing apparatus and the card-shaped portion. Therefore, the portable telephone apparatus enables the data processing apparatus to carry out communication relating to the datum.
摘要:
An optical head has a first light source for emitting a first light beam having a first wavelength, a second light source for emitting a second light beam having a second wavelength larger than the first wavelength, and an optical system for guiding the first and second light beams to an optical disc and guiding light beams reflected by the optical disc to an optical detector. The optical system, includes an objective lens, a beam splitter for reflecting the first light beam and the S-polarized component of the second light beam and transmitting the P-polarized component of the second light beam, and a quarter wavelength plate. When a high density medium is set against the optical head, recording is performed by the second light beam and reproduction is performed by the first light beam. When a low density medium is set against the optical head, recording and reproduction are carried out by the second light beam. A single optical head provides read/write compatibility with optical discs of different densities, and recording and reproduction can be made on a high density optical disc.
摘要:
A composition for external use capable of more efficiently deriving the effect of purine substances (and/or salts thereof) including (A) sugar; and (B) at least one member selected from the group consisting of purine substances and salts thereof.
摘要:
The present invention relates to a plasma etching method in which a special area for detecting an end point needs not to be set and an equipment therefor. At an etching step of forming SF6 gas into plasma to etch an etching ground on a Si film, the step is configured by two steps of: a large-amount supply step of supplying a large amount of SF6 gas; and a small-amount supply step of supplying a small amount of SF6 gas. An end-point detecting processor 34 measures an emission intensity of Si or SiFx in the plasma at the small-amount supply step, and determines that an etching end point is reached when the measured emission intensity becomes equal to or less than a previously set reference value.
摘要:
This invention provides a cleaning composition comprising a certain amount or more of an acylamino acid type surfactant, and further a non-ionic surfactant and a betaine-type ampholytic surfactant, which has a sufficient viscosity and exerts excellent conditioning effects.
摘要:
According to one embodiment, an automotive display apparatus includes an image projection unit and a control unit. The image projection unit is configured to project a light flux including an image by using a reflecting unit to reflect the light flux. The control unit is configured to control an operation of the image projection unit so that the image projection unit moves a projection region of the light flux by an amount substantially proportional to (Vc)2×δ from a predetermined initial position in a horizontal direction orthogonal to an optical axis of the light flux projected toward the predetermined initial position, where the Vc is a velocity of a vehicle and the δ is a steering angle of the vehicle.
摘要:
An image reading apparatus for reading an image of a document optically by illuminating a document with light emitted from a plurality of light emitting elements arranged linearly and by reading light reflected from the document. The image reading apparatus has a first light emitting element for emitting light in a first direction, a second light emitting element for emitting light in a second direction and one substrate for supporting the first light emitting element and the second light emitting element thereon.