Abstract: A transmission control device controls a CVT installed in a vehicle. The device has, as modes for the CVT, a CVT mode M1 for changing a transmission gear ratio steplessly based on the operating state of the vehicle, and a stepped transmission mode M2 for changing the transmission gear ratio stepwise based on the operating state of the vehicle. The device includes a transmission mode switching control unit (controller) 12 for controlling switching between the CVT mode M1 and the stepped transmission mode M2 based on an actual accelerator opening. The transmission mode switching control unit (controller) 12 performs switching from the CVT mode M1 to the stepped transmission mode M2, if the actual accelerator opening reaches or exceeds a first threshold value T1 set in a plurality of stages so as to increase stepwise in accordance with an increase in a vehicle speed.

Abstract: A transmission control device controls a CVT installed in a vehicle. The device has, as modes for the CVT, a CVT mode M1 for changing a transmission gear ratio steplessly based on the operating state of the vehicle, and a stepped transmission mode M2 for changing the transmission gear ratio stepwise based on the operating state of the vehicle. The device includes a transmission mode switching control unit (controller) 12 for controlling switching between the CVT mode M1 and the stepped transmission mode M2 based on an actual accelerator opening. The transmission mode switching control unit (controller) 12 performs switching from the CVT mode M1 to the stepped transmission mode M2, if the actual accelerator opening reaches or exceeds a first threshold value T1 set in a plurality of stages so as to increase stepwise in accordance with an increase in a vehicle speed.

Abstract: The control apparatus for a vehicle includes a determination unit that determines whether or not a start condition is established, the start condition including when a torque converter is in a lockup state, and when the vehicle is in an accelerating state; and a display control unit that causes an acting number of rotations to be displayed on a tachometer instead of an actual number of rotations when it is determined by the determination unit that the start condition is established. The display control unit calculates the acting number of rotations based on a target value of an input number of rotations of a continuously variable transmission, and varies the acting number of rotations with a rate of change having an absolute value that is greater than an absolute value of a rate of change of the actual number of rotations upon an abrupt change in the target value.

Abstract: A control apparatus for a vehicle includes a determination unit that determines whether or not a start condition is established, the start condition including a torque converter is in a non-lock-up state and the vehicle is starting; and a display control unit that causes a virtual number of rotations to be displayed on a tachometer instead of an actual number of rotations when it is determined by the determination unit that the start condition is established. The display control unit calculates an acting number of rotations by referring to the actual number of rotations and a number of rotations on a driving wheel side relative to the torque converter in an automatic transmission, and causes the acting number of rotations to be displayed on the tachometer as the virtual number of rotations.

Abstract: A control apparatus for a vehicle includes a determination unit that determines whether or not a start condition is established, the start condition including a torque converter is in a non-lock-up state and the vehicle is starting; and a display control unit that causes a virtual number of rotations to be displayed on a tachometer instead of an actual number of rotations when it is determined by the determination unit that the start condition is established. The display control unit calculates an acting number of rotations by referring to the actual number of rotations and a number of rotations on a driving wheel side relative to the torque converter in an automatic transmission, and causes the acting number of rotations to be displayed on the tachometer as the virtual number of rotations.

Abstract: The control apparatus for a vehicle includes a determination unit that determines whether or not a start condition is established, the start condition including when a torque converter is in a lockup state, and when the vehicle is in an accelerating state; and a display control unit that causes an acting number of rotations to be displayed on a tachometer instead of an actual number of rotations when it is determined by the determination unit that the start condition is established. The display control unit calculates the acting number of rotations based on a target value of an input number of rotations of a continuously variable transmission, and varies the acting number of rotations with a rate of change having an absolute value that is greater than an absolute value of a rate of change of the actual number of rotations upon an abrupt change in the target value.

Abstract: An RFID tag is characterized in that it includes: a dielectric substrate; a ground conductor portion disposed on one main surface of this dielectric substrate; a patch conductor portion disposed on another main surface of the above-mentioned dielectric substrate and forming a slot; electrical connecting portions internally extending from opposing sides of the above-mentioned slot, respectively; and an IC chip placed in the above-mentioned slot and connected to the above-mentioned electrical connecting portions.

Abstract: A ground conductor constituting a bottom board and a loop antenna formed of a strip conductor formed separately from and around the ground conductor are provided on one face of a dielectric substrate, and a transmitter-receiver is connected to one end of the loop antenna serving as the power dispatching unit via a first matching circuit, and a second matching circuit is connected to the other end. A conductor formed of the strip conductor is provided on the dielectric substrate on the other face of the dielectric substrate so as to oppose the loop antenna with the intermediary of the dielectric substrate. A third matching circuit is connected to one end of the conductor and a fourth matching circuit is connected to the other end of the conductor. The loop antenna and the conductor are set to have a wavelength shorter than that of the frequency band to be used.

Abstract: A radio tag communication system, when a plurality of RW apparatuses are arranged in such a manner that communication areas of adjacent RW apparatuses overlap one another, makes the polarized waves of the adjacent RW apparatuses orthogonal to each other, and causes the tag to switch the polarization direction with the movement of the tag. This makes it possible to prevent signal interference even when the communication areas are expanded.

Abstract: An RFID tag is characterized in that it includes: a dielectric substrate; a ground conductor portion disposed on one main surface of this dielectric substrate; a patch conductor portion disposed on another main surface of the above-mentioned dielectric substrate and forming a slot; electrical connecting portions internally extending from opposing sides of the above-mentioned slot, respectively; and an IC chip placed in the above-mentioned slot and connected to the above-mentioned electrical connecting portions.

Abstract: A ground conductor constituting a bottom board and a loop antenna formed of a strip conductor formed separately from and around the ground conductor are provided on one face of a dielectric substrate, and a transmitter-receiver is connected to one end of the loop antenna serving as the power dispatching unit via a first matching circuit, and a second matching circuit is connected to the other end. A conductor formed of the strip conductor is provided on the dielectric substrate on the other face of the dielectric substrate so as to oppose the loop antenna with the intermediary of the dielectric substrate. A third matching circuit is connected to one end of the conductor and a fourth matching circuit is connected to the other end of the conductor. The loop antenna and the conductor are set to have a wavelength shorter than that of the frequency band to be used.

Abstract: A radio tag communication system, when a plurality of RW apparatuses are arranged in such a manner that communication areas of adjacent RW apparatuses overlap one another, makes the polarized waves of the adjacent RW apparatuses orthogonal to each other, and causes the tag to switch the polarization direction with the movement of the tag. This makes it possible to prevent signal interference even when the communication areas are expanded.

Abstract: An antenna apparatus arranged in accordance with the invention has a plurality of element antennas 1 arranged on a plurality of concentric circles 2 assumed to exist on a plane and differs in radius from each other, and forms a beam in a direction inclined by &thgr;0 at the maximum from a direction perpendicular to the plane. If the radius of the n-th concentric circle 2 from the inner side is an; the number of element antennas 1 arranged on the n-th concentric circle 2 from the inner side is Mn, and the number of waves is k, the number Mn of element antennas 1 arranged on each concentric circle 2 is determined so as to satisfy the following equation: Mn+0.8·Mn1/3>k·an·(1+sin &thgr;0) Also, the element antennas 1 are arranged on each concentric circle 2 by being generally equally spaced apart from each other in the circumferential direction of the concentric circle.

Abstract: The present invention has been achieved with the aim of determining the minimum number of element antennas required to suppress unnecessary sidelobe levels and obtaining a cost reduction effect. An antenna apparatus arranged in accordance with the invention has a plurality of element antennas 1 arranged on a plurality of concentric circles 2 assumed to exist on a plane and differs in radius from each other, and forms a beam in a direction inclined by &thgr;0 at the maximum from a direction perpendicular to the plane.

Abstract: A plurality of concentric circle array antennas each having a different radius are disposed on an identical plane, and a plurality of element antennas are arranged circumferentially in each of the concentric circle array antennas. The plurality of concentric circle array antennas are arranged at regular intervals d in most part thereof, and the concentric circle array antennas corresponding to a remaining part of the plurality of concentric circle array antennas are arranged at intervals d±0.4 to 0.6d. The radii of the part of plural concentric circles change by ±(0.4 to 0.6)d, so that it is possible to reduce a wide-angle side lobe.

Abstract: A plurality of concentric circle array antennas each having a different radius are disposed on an identical plane, and a plurality of element antennas are arranged circumferentially in each of the concentric circle array antennas. The plurality of concentric circle array antennas are arranged at regular intervals d in most part thereof, and the concentric circle array antennas corresponding to a remaining part of the plurality of concentric circle array antennas are arranged at intervals d±0.4 to 0.6 d.

Abstract: A composite antenna apparatus comprising a balun connected to an inner conductor at the upper end of a coaxial line 11, one end of a helical element formed by a pair of wire conductors is connected to the balun, the other end is wound symmetrically around the coaxial line using the the coaxial line as a center so as to face the balun and is connected to the outer conductor 13 at the lower end of the coaxial line. The provision of an outer conductor connecting terminal connected to the outer conductor and an inner conductor connecting terminal connected to the inner conductor at the lower end of the coaxial line, allows the formation, on the same axis, of a helical antenna fed by the coaxial line via the helical element and a monopole antenna formed by the outer conductor of the coaxial line. Thereby equivalent gain in the horizontal plane and a reduction in the occupied volume is achieved.

Abstract: A flat antenna device is constructed such that circular patches are provided on one surface of a dielectric film, a metallic grounding conductor film is fitted to one surface of a dielectric film, a dielectric member is sandwiched between the dielectric film and the dielectric film, and an extending mechanism is provided to the periphery of the device so as to maintain the dielectric film and the dielectric film in a fully extended state. A circular microstrip patch antenna is formed by the metallic grounding conductor film and each of the circular patches.

Abstract: In an antenna apparatus in which n dielectric layers with .epsilon..sub.r1 -.epsilon..sub.rn in dielectric constants are respectively stacked between a ground plate and a major radiating conductor, the thickness t.sub.1 -t.sub.n of the dielectric layers are determined so as to satisfy substantially the following equations:(t.sub.1 +t.sub.2 + . . . +t.sub.n)/(t.sub.1 /.epsilon..sub.r1 +t.sub.2 /.epsilon..sub.r2 + . . . +t.sub.n /.epsilon..sub.rn)=.epsilon..sub.reff, andt.sub.1 +t.sub.2 + . . . t.sub.n =t.sub.minwith respect to a dielectric constant .epsilon..sub.reff of the antenna defined for a desired beam width, and the minimum value t.sub.min of the dielectric layers capable of ensuring a desired operation band and low reflection losses in this dielectric constant .epsilon..sub.reff. Thus, the thinnest antenna structure which can ensure a desired radiation in directions of low elevation angles, and desired operation bands and low reflection losses can be made.

Abstract: A planar antenna apparatus adapted to excite a small radiating element by electromagnetic coupling is provided. The antenna apparatus has a triplate line including ground conductor plates formed on the upper and lower surfaces of a dielectric substrate and a feed line sandwiched by the ground conductor plates. A coupling hole is formed through one of the ground conductor plates, and a mechanism is provided near the coupling hole for electrically interconnecting the two ground conductor plates. A radiating section coupled to the feed line through the coupling hole has one end grounded to form a short patch antenna. The short patch antenna has a size substantially half the size of a patch antenna. Also, the connecting mechanism prevents unnecessary coupling.