Abstract: A communication device and method are disclosed. Transmitted signals are transmitted from antennas. A beam is formed based on known-received signals by controlling a transmission directionality of the antennas. Transmitted power of the transmitted signals is controlled based on a time interval between a reception time during which the known-received signals are received and a transmission time during which the transmitted signals are transmitted.

Abstract: A notification unit conveys a transmit timing of a signal to a target radio apparatus. A receiver receives the signal transmitted from the target radio apparatus with a neighborhood of the transmit timing conveyed. A demodulation unit derives a difference between the receive timing and an estimated timing. A determining unit determines a new transmit timing for the target radio apparatus, based on the difference and outputs the new transmit timing determined to the notification unit. When a state in which the receive timing lags the estimated receive timing occurs more than a predetermined frequency, the determining unit instructs the target radio apparatus to start a handover.

Abstract: A communication device and method are disclosed. Transmitted signals are transmitted from antennas. A beam is formed based on known-received signals by controlling a transmission directionality of the antennas. Transmitted power of the transmitted signals is controlled based on a time interval between a reception time during which the known-received signals are received and a transmission time during which the transmitted signals are transmitted.

Abstract: A notification unit conveys a transmit timing of a signal to a target radio apparatus. A receiver receives the signal transmitted from the target radio apparatus with a neighborhood of the transmit timing conveyed. A demodulation unit derives a difference between the receive timing and an estimated timing. A determining unit determines a new transmit timing for the target radio apparatus, based on the difference and outputs the new transmit timing determined to the notification unit. When a state in which the receive timing lags the estimated receive timing occurs more than a predetermined frequency, the determining unit instructs the target radio apparatus to start a handover.

Abstract: Memory (237) stores relative correction values that indicate the differences of transfer characteristics between a) a radio unit made up of transmission circuit (211) and reception circuit (212), and b) a radio unit made up of transmission circuit (221) and reception circuit (222). Correction control unit (239), by means of phase shifter (240) and amplifier (241), uses the relative correction values to correct transmission signals. In similar fashion, the adaptive array apparatus and the radio base station perform corrections in order that identical array antenna patterns are formed at times of reception and transmission.

Abstract: Memory (237) stores relative correction values that indicate the differences of transfer characteristics between a) a radio unit made up of transmission circuit (211) and reception circuit (212), and b) a radio unit made up of transmission circuit (221) and reception circuit (222). Correction control unit (239), by means of phase shifter (240) and amplifier (241), uses the relative correction values to correct transmission signals. In similar fashion, the adaptive array apparatus and the radio base station perform corrections in order that identical array antenna patterns are formed at times of reception and transmission.

Abstract: Memory (237) stores relative correction values that indicate the differences of transfer characteristics between a) a radio unit made up of transmission circuit (211) and reception circuit (212), and b) a radio unit made up of transmission circuit (221) and reception circuit (222). Correction control unit (239), by means of phase shifter (240) and amplifier (241), uses the relative correction values to correct transmission signals. In similar fashion, the adaptive array apparatus and the radio base station perform corrections in order that identical array antenna patterns are formed at times of reception and transmission.

Abstract: A system and method for transporting connectors for printed circuit boards using connectors which are protected from tilting in a magazine case. Each connector (11) for printed circuit boards has a housing (13) narrow and elongate to hold a few contacts (12), a pair of lockable elastic legs (15) disposed at lower end regions of opposite lateral walls (14) of the housing and protruding sideways, and locking pawls (16) formed integral with the respective elastic legs. A pair of supplementary lugs (17) formed integral with upper end regions of the lateral walls (14) also protrude sideways the same distance as the pawls, so that when the connectors are driven forth within a magazine case (25), the neighboring supplementary lugs (17) will contact each other simultaneously as the neighboring pawls (16) jostle one another, protecting the connectors from tilting, and thus delivering them in line and in an ordinarily way.

Abstract: Transmit a desired signal from a first antenna, and an interference signal from a second antenna, and calculate a weight vector by which the interference signal can be eliminated and the desired signal can be array-received by a third antenna and a fourth antenna. While having the third antenna and the fourth antenna array-transmit signals using the weight vector calculated, fluctuate the phase amount and the amplitude amount of the signals transmitted by the fourth antenna, so as to calculate a correction value from the phase amount and the amplitude amount at the time when the signal level of the signals received by the second antenna is minimum.

Abstract: A fading rate of a mobile terminal unit is estimated by a fading rate estimation unit and an optimum step constant is decided by a step constant determiner depending on the estimated fading rate. This step constant is fed back to a feedback data calculator, so that a reception level can be converged to an ideal level even under a fading environment and the like.

Abstract: A system and method for transporting connectors for printed circuit boards using connectors which are protected from tilting in a magazine case. Each connector (11) for printed circuit boards has a housing (13) narrow and elongate to hold a few contacts (12), a pair of lockable elastic legs (15) disposed at lower end regions of opposite lateral walls (14) of the housing and protruding sideways, and locking pawls (16) formed integral with the respective elastic legs. A pair of supplementary lugs (17) formed integral with upper end regions of the lateral walls (14) also protrude sideways the same distance as the pawls, so that when the connectors are driven forth within a magazine case (25), the neighboring supplementary lugs (17) will contact each other simultaneously as the neighboring pawls (16) jostle one another, protecting the connectors from tilting, and thus delivering them in line and in an ordinarily way.

Abstract: A connector (11) for printed circuit boards has a housing (13) narrow and elongate to hold a few contacts (12), a pair of lockable elastic legs (15) disposed at lower end regions of opposite lateral walls (14) of the housing and protruding sideways, and locking pawls (16) formed integral with the respective elastic legs. A pair of supplementary lugs (17) formed integral with upper end regions of the lateral walls (14) also protrude sideways the same distance as the pawls, so that when the connectors are driven forth within a magazine case (25), the neighboring supplementary lugs (17) will contact each other simultaneously as the neighboring pawls (16) jostle one another, protecting the connectors from tilting, and thus delivering them in line and in an ordinarily way.

Abstract: Transmit a desired signal from a first antenna, and an interference signal from a second antenna, and calculate a weight vector by which the interference signal can be eliminated and the desired signal can be array-received by a third antenna and a fourth antenna. While having the third antenna and the fourth antenna array-transmit signals using the weight vector calculated, fluctuate the phase amount and the amplitude amount of the signals transmitted by the fourth antenna, so as to calculate a correction value from the phase amount and the amplitude amount at the time when the signal level of the signals received by the second antenna is minimum.

Abstract: A fading rate of a mobile terminal unit is estimated by a fading rate estimation unit and an optimum step constant is decided by a step constant determiner depending on the estimated fading rate. This step constant is fed back to a feedback data calculator, so that a reception level can be converged to an ideal level even under a fading environment and the like.

Abstract: A connector (11) for printed circuit boards has a housing (13) narrow and elongate to hold a few contacts (12), a pair of lockable elastic legs (15) disposed at lower end regions of opposite lateral walls (14) of the housing and protruding sideways, and locking pawls (16) formed integral with the respective elastic legs. A pair of supplementary lugs (17) formed integral with upper end regions of the lateral walls (14) also protrude sideways the same distance as the pawls, so that when the connectors are driven forth within a magazine case (25), the neighboring supplementary lugs (17) will contact each other simultaneously as the neighboring pawls (16) jostle one another, protecting the connectors from tilting, and thus delivering them in line and in an ordinarily way.

Abstract: An apparatus for measuring a weight of load on a vehicle or a vehicle weight capable of easily compensating changes in load sensor outputs caused by temperature changes. When changes in load sensors outputs are so small such changes are determined as caused by temperature change, and a compensation process is made to output computed load values which were taken before occurrence of temperature change against the up-dated sensor detection outputs. On the other hand, when the changes are greater, the computed load values are up-dated to the up-date sensor detection outputs, thereby an accurate information of the change in the load is detected.

Abstract: A fading rate of a mobile terminal unit is estimated by a fading rate estimation unit and an optimum step constant is decided by a step constant determiner depending on the estimated fading rate. This step constant is fed back to a feedback data calculator, so that a reception level can be converged to an ideal level even under a fading environment and the like.