摘要:
A communication terminal for communicating through an artificial satellite, wherein the artificial satellite is placed into an orbit in which an individual satellite orbits on an elliptical orbit so that at least one of the artificial satellites is always viewable within a pre-defined range of operational elevational angle in a zenith direction from a service area. A group of the artificial satellites are satellites on respective orbits obtained by combining an inclination angle and an eccentricity squared of said elliptical orbit so that a time period during which an artificial satellite is viewable from ground is substantially identical and the communication terminal has a transmitter and receiver for transmitting and receiving a signal through the group of artificial satellites.
摘要:
A digital data reproducing apparatus and method are provided, which are capable of reproducing both digital audio data from the main body of the apparatus and digital data from an external interface, using a simple construction. A main body of the apparatus processes first digital data, an interface receives, from an external device independent of the main body, second digital data having a sampling rate asynchronous with and different from a sampling rate of the first digital data, the first and second digital data being reproduced by the main body. The first digital data are oversampled at a frequency n times the sampling rate of the first digital data. The first digital data oversampled by the filter device and the second digital data input via the interface are added together, and the resulting data are converted into an analog signal.
摘要:
A thermochromic dry offset ink comprising a dry offset ink medium and a thermochromic pigment material dispersed therein, wherein the thermochromic pigment material is a pigment material which has a microcapsular form having non-round particle cross section and has a thermochromic material enclosed in the microcapsules. Also disclosed is a printed article produced using the ink. The thermochromic dry offset ink can more improve pressure resistance and heat resistance and also can more satisfy uniform printability and high-speed continuous printability in offset printing especially on articles such as containers.
摘要:
One matrix board aggregate accommodating two matrix boards is made one unit of a switch. Three of the matrix board aggregates are vertically located, groups of such three vertically-located matrix board aggregates are laterally located and robots are provided between the matrix board aggregates. By providing a number of robots, the switch operation speeds up. The robots are controlled by a control circuit/power supply RMC/POW. I/O cables for connecting an MDF apparatus to an exchange or to lines are provided at the back. In a three-stage switching configuration, by devising the location of primary, secondary and tertiary switches, interconnection between matrix board aggregates can be made using BWBs made of a printed wiring board.
摘要:
Bonding pads (3) are arranged on the outer side of an in-chip circuit region (2) of a semiconductor integrated circuit board (1), and a scribed line (4) for chip separation is formed on the outer side thereof. A corner portion (4a) of the scribed line (4) is formed to be wider than a remaining portion (4b) thereof, and a wafer test circuit (5) and test pads (6) are formed in the corner portion (4a).
摘要:
A color cathode ray tube including a generally rectangular shadow mask with at least a long side, a short side and a corner, and having a curved apertured portion with a multiplicity of electron-transmissive apertures, a curved imperforate portion surrounding and integral with the apertured portion and a skirt portion bent back from a periphery of the curved imperforate portion. A generally rectangular support frame is provided for suspending the shadow mask by spot welding the skirt portion thereto within a panel portion of the color cathode ray tube. The skirt portion is provided with a plurality of slits extending in a direction of a height of the skirt portion and a plurality of embossments extending in the direction of the height of the skirt portion in one of a long side and a short side of the skirt portion. The plurality of slits and the plurality of embossments are juxtaposed around a circumference of the skirt portion with a majority of the plurality of slits in the one of the long side and the short side of the skirt portion being unbridged slits or with the plurality of slits extending a distance no greater than 70% of the height of the skirt portion from a rear end of the skirt portion on an opposite side thereof from the panel portion.
摘要:
A single-pole relay switch capable of effective arc extinction irrespective of the current flowing directions in which the device is connected in a circuit. The switch has a housing and two sets of contacts located in the housing, each set being composed of a fixed contact and a movable contact. A contact carrier is provided to have first and second movable arms which extend commonly from a bridge and are provided respectively with the two movable contacts. An actuator applies a driving force to move the contact carrier between an ON-position of holding the movable contacts simultaneously in contact respectively with the fixed contacts, and an OFF-position of keeping the movable contacts at respective opening gaps from the fixed contacts. The housing includes a casing which is divided into first and second chambers respectively for receiving the contact sets, each of the first and second chambers being surrounded by a dielectric wall. Permanent magnet are disposed around the casing to stretch the individual arcs in opposing directions to each other and towards the dielectric walls of the first and second chambers, respectively. Thus, the individual arcs can be stretched individually within the separate chambers, i.e., in an isolated condition. Therefore, the individual arcs can be free from merging even when the current flows in such a direction as to drive the arcs in the approaching direction.
摘要:
A polyurethane foam for a sealant is disclosed which is produced from a composition prepared by compounding reaction mixture comprising a polyisocyanate ingredient and a polyol ingredient with a given amount by weight of an ozone inhibitor ingredient. A sealant of a predetermined shape is obtained from the foam. The polyol ingredient may be one ordinarily used for producing soft polyurethane foams, but especially preferably comprises a polyester-polyether polyol having both an ester segment and an ether segment in the molecular chain. The foam has excellent resistance to ozone deterioration and hence retains a sufficient air permeability required of a sealant for practical use. Further, the foam suffers little decrease in tensile strength from the initial value because it also has excellent resistance to deterioration by moisture and heat, i.e., high hydrolytic stability. A door for a conditioner is also described which comprises a substrate having provided on at least one surface thereof a sealant layer which comprises the polyurethane foam for sealant.
摘要:
In order to provide a sample hold circuit used in LCD driver circuit or dividing an analog signal to parallel source driving signals in desired order with fewer numbers of elements and lower current consumption, a sample hold circuit of the invention comprises two emitter coupling logic circuit (2 and 3), each having the same number of transistors (Q2-1 to Q2-n and Q3-1 to Q3-n) with their bases controlled with outputs of a shift register (6). By connecting collectors of transistors (Q2-1 to Q2-n and Q3-1 to Q3-n) of each emitter coupling logic circuit (2 or 3) to current mirrors (4-1 to 4-n) in inverse order with each other, sample hold units (5-1 to 5-n) output sample hold signals supplied with outputs of the current mirrors (4-1 to 4-n) forward scanning or backward scanning according to the emitter coupling logic circuit (1 or 2) activated.
摘要:
A heat exchanger, as mounted on the outdoor unit or indoor unit of an air conditioner system, is formed with a plurality of passages for a refrigerant. To this heat exchanger, there is connected a refrigerant distributor for distributing the refrigerant to the individual passages or for collecting the distributed refrigerant. This refrigerant distributor is constructed by soldering two corrugated plate members to form a refrigerant conduit between the corrugations. Before these plate members are soldered, the refrigerant conduit is either partially constricted to form a throttle portion or partially bulged to form a filter portion by fitting a filter member in the bulging portion when the plate members are soldered. Thus, the refrigerant distributor can set the diversion of the refrigerant to a predetermined ratio by the simple device while reducing the space and lowering the cost.