Abstract:
According the present invention, a line using status of each personal station which contains an existing analog line in a route between the personal station and an exchange unit is determined. The PS number of a personal station having a telephone call, the line number used for the telephone call, and the line use order of in which the personal station uses the line are registered in a billing unit provided to a cell station every time a telephone call is made, and the line number, the line use order and the charging rate parameter of usage of the line are registered in a billing center every time a telephone call is made. Further, the information registered in the billing unit is periodically collected in the form of analog signals in the billing center, and the PS number and the charging rate parameter are associated with each other by using the line number and the line use order as a key.
Abstract:
In a microcellular system operated in the same frequency band as a cellular system, an interference-free channel is automatically searched and allocated. The microcellular system which shares the frequency band with the cellular system comprises a control unit, a base station and a multi-channel selecting receiver. The multi-channel selecting receiver monitors a use status of cellular channels of the band by repetitively scanning voice channels for a scanning time period substantially longer than the duration of any single voice communication to detect idling channels and allocates them to its own system. Whenever a communication request is issued, the base station detect a channel not used by its own system from the idling channels and allocates it for communication.
Abstract:
A vaporized fuel control apparatus according to the present invention is provided in an internal-combustion engine at least including a plurality of cylinders and each cylinder having a fuel injector, an intake tube mounted to the cylinders, a fuel tank, and a canister connected to the fuel tank. The vaporized fuel control apparatus includes a purge valve and an electronic control unit for controlling the opening/closing of the purge valve. The purge valve is provided in a purge passage connected between the canister and intake tube, the canister being filled by an absorbing material to absorb a fuel vaporized from the fuel tank. The electronic control unit controls an amount of purged gas flowing into the intake tube by controlling the opening/closing timing and the duty ratio of the purge valve in such a way that the purge valve is opened at a timing when a stroke of a particular cylinder reaches the same stroke at a next cycle in synchronization with an engine rotational speed, and an amount of the fuel supplied to the particular cylinder is reduced in accordance with an amount corresponding to an inflow amount of the purged gas.
Abstract:
An apparatus for purifying an exhaust gas for an internal combustion engine having units for the adsorption of HC gases in the exhaust gas, arranged in an exhaust manifold of the engine facing corresponding exhaust ports in such a manner that straight flows from the corresponding exhaust ports contact the corresponding adsorption units. A controller receives a signal indicating a temperature of one of a catalytic converter and the adsorption units. The controller sends a signal to a cooling apparatus, such as a fan, indicating a desired on condition of the cooling apparatus based on the temperature signal. The cooling apparatus is provided for generating air flows for cooling the adsorption units. The fan is operated when the engine, in a cold state, is started. The operation of the fan is continued until a catalytic converter arranged downstream from the adsorption units becomes effective, i.e. the temperature of the catalytic converter is higher than a predetermined value.
Abstract:
A coin mech controller (70), when receiving a coin payment set command from a main controller (10), judges the presence or absence of a coin within an acceptor (100). In the absence of a coin within the acceptor (100), the coin mech controller (70) controls to immediately pay out coins corresponding to a coin payment amount calculated by the main controller (10). In the presence of a coin within the acceptor (100), the coin mech controller (70) controls to pay out coins corresponding to the coin payment amount calculated by the main controller (10) after the coin within the acceptor (100) has passed through. The coin mech controller (70) determines the numbers of coins having different coin sorts and corresponding to the payment amount calculated by the main controller (10), sets a payment pattern of a coin sort priority corresponding to maximum one of the determined numbers of coins in different sorts, and controls a coin dispenser (220) of a coin mech body (200) according to the set payment pattern to pay out coins from coin tubes (210-1 to 210-4).
Abstract:
A coin payout device that has been improved such that a coin jam will be automatically dislodged in the event that a coin jam occurs, and there will be no problem of overpayment. When coin payout is performed by the forward rotation of a coin payout motor (40), a coin payout controller (80) detects the occurrence of a coin jam from the operational circumstances of a carrier switch (60) up to the time when a first timer (81) runs out, and determines whether the reverse rotation of the coin payout motor (40) would cause a problem based on the current state of the carrier switch (60), so that the coin payout motor (40) is reversed and the coin jam dislodged only when no problem will be caused.
Abstract:
A bent portion (adsorption box) is formed in part of an exhaust pipe connecting exhaust ports and a catalyst for purifying HC or the like in the exhaust gas, and a HC adsorbent of a honeycomb structure is placed forward with respect to the direction in which the exhaust gas travels straight without turning at the bent portion. The exhaust gas flowing from the exhaust ports, turns, and flows into the exhaust pipe, but HC having a large particle size travels straight along rectifier blades to be adsorbed by the HC adsorbent and held for a while. During such process, the catalyst connected to the exhaust pipe is heated up to be activated, thereby for purifying the HC or the like which is desorbed by the temperature rise of the adsorbent. Another HC catalyst may be carried in the front of the adsorbent that is easily heated to a high temperature, or an EGR passage including an EGR control valve may be connected downstream from the adsorbent.
Abstract:
In a microcellular system operated in the same frequency band as a cellular system, an interference-free channel is automatically searched and allocated. The microcellular system which shares the frequency band with the cellular system comprises a control unit, a base station and a multi-channel selecting receiver. The multi-channel selecting receiver monitors a use status of cellular channels of the band to detect idling channels and allocates them to its own system. Whenever a communication request is issued, the base station detects a channel not used by its own system from the idling channels and allocates it for communication.
Abstract:
A surface acoustic wave apparatus wherein a reflector for reflecting a surface acoustic wave is provided on both sides of at least one of an input interdigital transducer and an output interdigital transducer, or, on one side of one of the input interdigital transducer and the output interdigital transducer.
Abstract:
A plurality of interdigital transducers (IDTs) of a surface acoustic wave bandpass filter, each of which has a plurality of electrode fingers arranged in a direction perpendicular to a propagating direction of surface acoustic wave, are connected alternatively to an input terminal and an output terminal of said filter. The IDTs are different in number of electrode fingers and in average value of inter-finger distance from each other and distance between adjacent IDTs are different. At least one of the outermost IDTs has a minimum number of electrode fingers and a maximum average value of inter-finger distance, compared with those of other IDTs.