Abstract: A vehicle control device includes a recognizer configured to recognize a surrounding environment including a structure of a road near a vehicle and another vehicle, a deriver configured to derive a predicted probability that the other vehicle will travel in the future along each of routes which are assumed when a plurality of routes along which the other vehicle is able to travel are assumed on a road on which the other vehicle recognized by the recognizer travels, and a travel controller configured to control behavior of the vehicle based on the predicted probability derived by the deriver.

Abstract: A vehicle control device includes a recognizer configured to recognize a surrounding environment including a structure of a road near a vehicle and another vehicle, a deriver configured to derive a predicted probability that the other vehicle will travel in the future along each of routes which are assumed when a plurality of routes along which the other vehicle is able to travel are assumed on a road on which the other vehicle recognized by the recognizer travels, and a travel controller configured to control behavior of the vehicle based on the predicted probability derived by the deriver.

Abstract: A half-symbol constellation display for readily providing better observability of signal distortions in a modulated signal representing symbols of information uses a sample clock derived from a symbol clock for the modulated signal, the sample clock having the same period as the symbol clock but being shifted one-half period in phase with respect to the symbol clock. Quadrature component signals of the modulated signal are sampled using the sample clock to produce sample pairs, referred to as pseudo-symbols, that are symmetric about a symbol sample point. The pseudo-symbols form a plurality of clusters when displayed on a quadrature coordinate plane, with the diameter of each cluster being determined by the outer pseudo-symbols for the corresponding symbols. The circumferences of such clusters for an ideal modulated signal may be displayed as a template to make it easier to recognize the shift of the pseudo-symbols from the ideal locations due to distortions in the modulated signal.

Abstract: A receiver 31 receives a wireless signal of, for example, an RFID system that conducts communication with a wireless signal based on reflection modulation. A demodulation block 33 demodulates the received signal obtained at the receiver 31 with orthogonal demodulation. A display block 36 provides signal points derived from the orthogonal demodulation onto an orthogonal coordinate display to display characteristics of the reflection modulation concerning an RF tag that conducts the reflection modulation of the wireless signal. The display of the signal points may have vector display or at least numerical values indicating magnitudes of the vectors. The processed results may be stored and signal points based on the stored results may be displayed on the orthogonal coordinate to compare sets of the characteristics of the reflection modulations on the display.

Abstract: A composition is provided, containing an extract of a plant of the genus Hemerocallis as an active ingredient and having antidepressant-like effects or fatigue-relieving effects based on sleep improvement. A composition is also provided, containing a hot-water extract of a plant of the genus Hemerocallis as an active ingredient and having antidepressant-like effects or fatigue-relieving effects based on sleep improvement.

Abstract: A first valve port is set to have a seal diameter smaller than that of a second valve port. Due to a pressure reception area of a first valve body port being small, the attachment force of the first valve body portion is reduced with respect to a valve seat. It thus becomes possible to open the first valve port as the attachment of the first valve body portion is released with respect to the valve seat without increasing the weight of the float. After the first valve port is opened, the pressure difference is reduced between inside of a fuel tank and a connecting pipe on the side of a canister, and the attachment force acting on a second valve body portion is also reduced. In this manner, the second valve body portion is opened with certainty. As a result, it becomes possible to go through the operation of opening the second valve port that is larger in diameter than the first valve port without increasing the weight of a sub float.

Abstract: Carrier frequency detection for an N-ary modulated signal is achieved by digitizing the N-ary modulated signal, frequency shifting the digitized N-ary modulated signal to prevent aliasing, raising the frequency-shifted signal to the Nth power, transforming the raised signal to frequency domain data and determining an initial maximum frequency peak, iteratively fine shifting the frequency of the N-ary modulated signal around the initial maximum frequency peak and repeating the raising, transforming and determining steps to obtain a plurality of maximum frequency peaks, and calculating the carrier frequency from the maximum frequency peaks and the total related frequency shift.

Abstract: A receiver 31 receives a wireless signal of, for example, an RFID system that conducts communication with a wireless signal based on reflection modulation. A demodulation block 33 demodulates the received signal obtained at the receiver 31 with orthogonal demodulation. A display block 36 provides signal points derived from the orthogonal demodulation onto an orthogonal coordinate display to display characteristics of the reflection modulation concerning an RF tag that conducts the reflection modulation of the wireless signal. The display of the signal points may have vector display or at least numerical values indicating magnitudes of the vectors. The processed results may be stored and signal points based on the stored results may be displayed on the orthogonal coordinate to compare sets of the characteristics of the reflection modulations on the display.

Abstract: A first valve port 12 is so set as to have the seal diameter X smaller compared with that of a second valve port 14. Because the pressure reception area of a first valve body port 16 is small, the attachment force of the first valve body portion 16 is reduced with respect to a valve seat 12a. It thus becomes possible to open the first valve port 12 as the attachment of the first valve body portion 16 is released with respect to the valve seat 12a without increasing the weight of the float 15. After the first valve port 12 is opened, the pressure difference is reduced between inside of a fuel tank 20 and a connecting pipe on the side of a canister, and the attachment force acting on a second valve body portion 22 is also reduced. In this manner, the second valve body portion 22 is opened with certainty. As a result, it becomes possible to go through the operation of opening the second valve port 14 that is larger in diameter than the first valve port 12 without increasing the weight of a sub float 21.

Abstract: A first test signal from a test signal source is provided to a spectrum analyzer to produce first measurement data. The test signal source is expressed by a first transfer function G(w) and the spectrum analyzer is expressed by second transfer function F(w). A second test signal is provided to the spectrum analyzer to produce second measurement data where the second test signal is derived from the first test signal by shifting the frequency by a known increment. From the first and second measurement data, the components are the same on G(w) but different on F(w). The G(w) components are cancelled by calculation using the first and second measurement data and then the second transfer function F(w) is evaluated independently of G(w).

Abstract: A first test signal from a test signal source is provided to a spectrum analyzer to produce first measurement data. The test signal source is expressed by a first transfer function G(w) and the spectrum analyzer is expressed by second transfer function F(w). A second test signal is provided to the spectrum analyzer to produce second measurement data where the second test signal is derived from the first test signal by shifting the frequency by a known increment. From the first and second measurement data, the components are the same on G(w) but different on F(w). The G(w) components are cancelled by calculation using the first and second measurement data and then the second transfer function F(w) is evaluated independently of G(w).

Abstract: Carrier frequency detection for an N-ary modulated signal is achieved by digitizing the N-ary modulated signal, frequency shifting the digitized N-ary modulated signal to prevent aliasing, raising the frequency-shifted signal to the Nth power, transforming the raised signal to frequency domain data and determining an initial maximum frequency peak, iteratively fine shifting the frequency of the N-ary modulated signal around the initial maximum frequency peak and repeating the raising, transforming and determining steps to obtain a plurality of maximum frequency peaks, and calculating the carrier frequency from the maximum frequency peaks and the total related frequency shift.

Abstract: In the case where a full-tank state is brought about by feed, excessive ascent of a liquid level in a loading arm is suppressed and excessive feed is prevented. A finned umbrella valve is provided for throttling a flowrate of a fuel vapor prior to closing of a float valve.

Abstract: A half-symbol constellation display for readily providing better observability of signal distortions in a modulated signal representing symbols of information uses a sample clock derived from a symbol clock for the modulated signal, the sample clock having the same period as the symbol clock but being shifted one-half period in phase with respect to the symbol clock. Quadrature component signals of the modulated signal are sampled using the sample clock to produce sample pairs, referred to as pseudo-symbols, that are symmetric about a symbol sample point. The pseudo-symbols form a plurality of clusters when displayed on a quadrature coordinate plane, with the diameter of each cluster being determined by the outer pseudo-symbols for the corresponding symbols. The circumferences of such clusters for an ideal modulated signal may be displayed as a template to make it easier to recognize the shift of the pseudo-symbols from the ideal locations due to distortions in the modulated signal.

Abstract: In the case where a full-tank state is brought about by feed, excessive ascent of a liquid level in a loading arm is suppressed and excessive feed is prevented. A finned umbrella valve 18 is provided for throttling a flowrate of a fuel vapor prior to closing of a float valve 15.

Abstract: A differential pressure regulating valve is disclosed which improves sealing performance when the valve closes. The differential pressure regulating valve has a diaphragm and a guide. The guide limits the moving direction of a retainer. A projecting part and an engaging hole engage with one another and reduce deformation of the diaphragm by tolerating a relative movement between the diaphragm and the retainer. A liquid shut-off valve device is also disclosed which incorporates the differential pressure regulating valve and has stable operating characteristics.

Abstract: A liquid cutoff valve unit provided for a sealed container in which a liquid fills comprises a discharge passage formed to an upper portion of the sealed container in a used state and adapted to discharge the gas therein, a float valve moving in accordance with a buoyancy so as to open or close the discharge passage, a float chamber in which the float valve is accommodated and having a size enabling the float valve to be moved therein and an urging means such as spring for urging the float valve in a valve closing direction. The float valve is provided with a cylindrical member having an upper end closed and a lower end opened to provide an inner cylindrical space formed as an air reservoir and at least one communication port opened to a side wall section of the cylindrical member and adapted to establish communication between an inside and an outside of the air reservoir.

Abstract: A diaphragm valve having a diaphragm functioning as a valve body. Unlike the conventional valve of this type, the retainer for pressing the sealing section of the diaphragm against the valve seat is provided with a predetermined number of rectangular apertures or concave portions at specified positions thereon so that when the valve is operated in a low temperature atmosphere or a high temperature atmosphere, the diaphragm is prevented from sticking firmly to the valve sheet due to freezing or heating thereby allowing the valve to perform an accurate valve opening operation without changing its pressure and flow rate characteristics.

Abstract: A fuel cut-off valve (10) includes an enlarged-diameter vapor outlet aperture (30) which is controlled by a first closure member (50) having a small auxiliary vapor vent orifice (52) which, in turn, is controlled by a second closure member (58) formed on the float member (38). The first closure member (50) is biased by a spring (62) toward the second closure member (58) to ensure that the first closure member (50) is unseated away from the main valve seat (36) as soon as the auxiliary vapor vent orifice (52) is opened.

Abstract: A diaphragm valve (20) of the class having a diaphragm (32) backed-up by a spring retainer (38). The spring retainer (38) is provided, at a portion thereof facing the valve seat (30), with a relieved surface (48) spaced away from the diaphragm (38) in the free state thereof. The relieved surface (48) permits the diaphragm to resiliently yield in response to any circumferential undulation or unevenness (52) of the valve seat to provide a snug fit between the diaphragm (32) and the valve seat (30) throughout the entire circumference of the valve seat.