Abstract: A compression and decompression apparatus, method and computer program product, wherein compression and decompression of image data is performed via a combination of two-dimensional reversible wavelet transform processing, context model processing, and binary entropy encode/decode processing. Faster processing, as compared to conventional devices and methods, is achieved by performing the context model processing and the binary entropy encoding/decoding processing in parallel, such that two-story pipeline processing is performed, resulting in a reduction of a basic cycle time.

Abstract: An automatically focusing system comprises a distance-direction calculating section for calculating defocusing characteristic information of the picture image data in the respective AF areas of the black and white image sensors, which have been disposed in such that light receiving distances differ from one another in every respective colors to estimate a distance up to a focusing point as well as a direction along the same on the basis of the defocusing characteristic information of the respective colors, and a driving device for focal point adjustment for judging whether or not a situation is in a focusing condition based on the distance up to the focusing point and shifting the focus lens by the distance up to the focusing point along the direction in the focusing point estimated in the case when it was judged that a situation was not in a focusing condition, whereby a high-speed focusing operation can be achieved with a simple structure.

Abstract: An autofocus apparatus sets a portion of an image frame as an AF area. Then, in first image-pickup, acquires first image data for the AF area within the image frame according to a first light flux from an object passing through an aperture of the diaphragm when the diaphragm is not shifted. Further, in second image-pickup, acquires second image data for the AF area within the image frame according to a second light flux from the object passing through the aperture of the diaphragm when the diaphragm is shifted in one vertical direction with respect to the optical axis. A cross correlation between the first image data and the second image data is computed, and a distance up to a focus position of the focal lens as well as a direction thereof is computed according to the cross correlation. Then, the focal lens is driven to the focus position.

Abstract: A high-performance and compact antenna apparatus is provided which is capable of obtaining a high antenna gain, less susceptible to wind and the like, and advantageously useful as mounted on vehicles or the like. The antenna apparatus includes: a transmitting antenna section 2 having at least one planar antenna element for transmitting a radio wave to a satellite; a receiving antenna section 3 having at least one planar antenna element for receiving a radio wave from the satellite, the transmitting antenna section 2 and the receiving antenna section 3 being positioned to orient to a predetermined satellite and arranged stepwise with a predetermined spacing therebetween.

Abstract: A membrane artificial lung for performing gas exchange between blood and a gas via the membrane by flowing the blood in one side of the membrane and flowing oxygen or an oxygen-containing gas in the other side of the membrane, wherein said membrane comprises a hollow fiber membrane, said hollow fiber membrane comprising poly-4-methylpentene-1 and having an oxygen permeation rate Q(O2) at 25° C. of from 1×10−6 to 3×10−3 (cm3(STP)/cm2·sec·cmHg) and an ethanol flux of from 0.1 to 100 ml/min·m2, wherein said membrane has, in the side of the blood flow, a surface comprising an ionic complex derived from: quaternary aliphatic alkylammonium salts; and heparin or a heparin derivative, and wherein said quaternary alkylammonium salts comprise a quaternary aliphatic alkylammonium salt having from 22 to 26 carbon atoms in total and a quaternary aliphatic alkylammonium salt having from 37 to 40 carbon atoms in total.

Abstract: A multichannel recording and reproducing apparatus which includes: an input and output circuit; a buffer for temporally storing multichannel of video data through inputting and outputting circuit; a disc unit for storing the video data; a disc interface; a user interface circuit for receiving recording and reproducing commands and a corresponding file name from a user; a control circuit responsive to the user interface for obtaining one of N video channel circuits of the input and output circuit for inputting and outputting video data and receiving recording and reproducing commands; a filing circuit controlling files and determining first and second address data of the disc unit according to the recording and reproducing commands respectively; an access control circuit for accumulating the recording and reproducing commands and supplying each of the accumulated recording and reproducing commands when the disc interface is in a non-operating condition with priority provided to either of the recording or repro

Abstract: A digital PLL circuit includes a sampler which samples a burst data signal depending on N phase clock signals to produce N phase sampled data signals. Based on the N phase sampled data signals, an edge phase detector detects edge information and a duty detector detects duty information signals in synchronization with the reference signal. A selector selects an optimal sampled data signal from the N phase sampled data signals depending on the edge information and the duty information, and a retiming section retimes the sampled data signal selected in synchronization with the reference signal.

Abstract: A facsimile system includes a facsimile apparatus including a printer for receiving and printing facsimile information and a terminal apparatus remote from the facsimile apparatus, for transmitting data to and receiving data from the facsimile apparatus. The facsimile apparatus includes a data transmit device for transmitting data related to a condition of a public telephone line connected to the facsimile apparatus in response to a request from the terminal apparatus.

Abstract: A data conversion apparatus includes a plurality of computers connected to a network, a storage section, a retrieval section, data conversion processing sections, and a control section. The storage section stores plural sorts of information on the converter including a name of a computer equipped with a converter, a way of using the converter. A retrieval section retrieves information on the subject converter from the storage section according to a conversion request from a computer which requesting data conversion. The data conversion processing sections are connected to the respective computers and converts data into data of a format to be used with the converter on the basis of the result retrieved by the retrieval section. The control section controls the retrieval processing of the retrieval section and the conversion processing of the data conversion processing section to output converted data to the computer which requests data conversion.

Abstract: A superconducting magnetic levitation apparatus for driving a floating body efficiently and controllably, for producing a strong driving force, and for generating a lifting magnetic field having a uniform intensity in a running direction and producing a guidance force in a lateral direction, to stably run the floating body. The superconducting magnetic levitation apparatus includes a lifting magnet for forming a track, a floating body made of a high-T.sub.c superconductor, and a cooling device for keeping the floating body at a superconducting state. A plurality of coils are disposed on the lifting magnet, to be used as propulsion electromagnets, for generating a magnetic field necessary for running the floating body, with each of the coils being a flat, air-core coil, and with the coils being excitable by a polyphase alternating current.

Abstract: Disclosed is a bar or conductor constituted by a plurality of strands disposed in a slot and extending outward from the opposite ends of the slot with each of the strands being substantially bisymmetrically vertically slanted so as to be transposed in the vicinity of a longitudinally central portion of the slot-inside bar portion. Each of the strands being transposed such that the respective strand arrangements at the opposite ends of the slot-outside bar end portions are reversed with respect to each other, with the total number of transposed portions of all the strands is less than three times the number of the strands.

Abstract: A protective material for electronic parts comprises monoalkylated phenol.formaldehyde novolak resin having 6 to 12 carbon atoms in the alkyl group, and a process for the production of electronic parts, which comprises the following steps A to C:A. covering a device side surface of a semiconductor plate on which semiconductor elements and so forth are mounted with a protective film of a protective material comprising monoalkylated phenol.formaldhyde novolak resin having 6 to 12 carbon atoms in the alkyl group;B. finishing the other or backside surface of the semiconductor plate, not covered with the protective film, to reduce the thickness of the plate; andC. removing the protective film with a solvent.

Abstract: A circuit arrangement of a digital filter comprises an A/D converter supplied with an input analog signal and producing as output a pulse-modulated digital signal, a digital filter for subjecting the digital signal from the A/D converter to a digital operation processing of finite word length, a D/A converter supplied with the resulting output digital signal of the digital filter and converting the same into an analog signal thereby to generate an output analog signal, an input detector for detecting the state wherein there is substantially no input analog signal and responsively producing as output a detection signal, an integrator for integrating the output of the D/A converter, a switching circuit for operating in response to the output detection signal of the input detector to pass the resulting output signal of the integrator, a reference voltage source, and an adder for adding the signal thus passed by the switching circuit and a reference voltage from the reference voltage source and feeding back and i