Abstract: According to one embodiment, a radio device comprises a differential antenna that has a pair of differential power supply terminals, a transmitter that transmits a first signal via the differential antenna, a receiver that has a pair of differential input terminals and receives a second signal via the differential antenna, a first control unit, and a second control unit. The first control unit causes a signal conduction state between the differential antenna and the receiver when the receiver receives the second signal. The second control unit switches from a signal conduction state to a signal block state between one of the differential input terminals and one of the differential power supply terminals based on a reception state when the receiver receives the second signal.

Abstract: According to one exemplary embodiment, a communication apparatus includes: a measurement module which measures reception power of each field; a determination module which determines whether the reception power is within a range; a calculator which calculates a gain using the reception power if the reception power is not within the range; an adjuster which adjusts a field according to one of an initial gain and the calculated gain; a selector which selects a field length according to the number of field adjustments by the adjuster; and a transmitter which transmits information regarding the field length. When the number of the adjustments is lower than a first threshold value, the selector selects a first value, and when the number of the adjustments is equal to or higher than the first threshold value, the selector selects a second value that is higher than the first value, as the field length.

Abstract: In a capacitor-discharge ignition system for an internal combustion engine having a power generation coil, a capacitor connected to the power generation coil, an ignition coil having a primary winding connected to the capacitor through a thyristor and a secondary winding connected to a spark plug, and a microprocessor which turns on the thyristor at a predetermined crank angular position to produce ignition in the spark plug, an engine stop switch is installed to input an engine-stop command signal to the microprocessor when being turned off by the operator. With this, it becomes possible to surely stop the engine at any time if desired.

Abstract: In a capacitor-discharge ignition system for an internal combustion engine having a power generation coil, a capacitor connected to the power generation coil, an ignition coil having a primary winding connected to the capacitor through a thyristor and a secondary winding connected to a spark plug, and a microprocessor which turns on the thyristor at a predetermined crank angular position to produce ignition in the spark plug, an engine stop switch is installed to input an engine-stop command signal to the microprocessor when being turned off by the operator. With this, it becomes possible to surely stop the engine at any time if desired.

Abstract: An information processing system to implement reverse auction for a price list is disclosed. The system includes a price list storage unit storing an individual transaction value when a supplier performs transaction under a reference transaction condition as a price list of a supplier, a requirement storage unit storing a tentative number of transaction times used in the reverse auction in association with the reference transaction condition; and a reverse auction unit performing the reverse auction where a bidder is a supplier and a bid price is a total amount of individual transaction values when assuming to perform the tentative number of times of transactions under each reference transaction condition with reference to the price list storage unit and the requirement storage unit.

Abstract: A bidding system in accordance with the present invention receives bids from bidders by disclosing call-for-bid information that has been received from a bid caller calling for bids, and receives information about a winning bidder determined by the bid caller based on that bidding information. The bidding system includes a bidding processing portion 14 receiving bidding price range information sent by a bidder over a communication network, and a fee charge processing portion 13 for calculating a fee based on the bidding price range information received by the bidding processing portion 14. Furthermore, shared keys are used in order not to divulge information to the site operator.