Abstract: A high frequency semiconductor circuit device in which a microwave circuit can be miniaturized is provided, which includes a GaAs substrate; a plurality of FETs formed on the GaAs substrate; and a microstrip line formed on the GaAs substrate and electrically connecting FETs each other, wherein a thickness of a region of the GaAs substrate on which the microstrip line is formed is different from a thickness of a region of the GaAs substrate on which FETs are formed.

Abstract: [Object] To provide a light emitting device which can take out fluorescence with luminance higher than conventional by efficiently converting excitation light into fluorescence. [Solution Means] A fluorescence emitting device includes an ultraviolet light source 2 which generates ultraviolet light to excite fluorescence by collision with a fluorescent material; a first optical thin-film layer 8 disposed on the front surface of the ultraviolet light source 2; a phosphor layer 6 containing the fluorescent material disposed on the front surface of the first optical thin-film layer 8; and a second optical thin-film layer 9 disposed on the front surface of the phosphor layer 6, wherein the first optical thin-film layer 8 transmits ultraviolet light and reflects fluorescence, and the second optical thin-film layer 9 reflects ultraviolet light and transmits fluorescence.

Abstract: A CDMA mobile communication demodulator circuit has a path timing comparison part 4 operable to compare a difference between path timings of adjacent paths with a predetermined threshold value, a path level comparison part 5 operable to compare power correlation values of the path timings of the paths determined to be controlled with a maximum power correlation value between those path timings, and a path timing determination part 3 operable to control the finger assignment timings based on the comparison results. By adaptively controlling finger assignment timings in accordance with a power correlation peak value obtained by a delay profile calculation, good receiving characteristics can be maintained, and electric power consumption can be reduced.

Abstract: HS-SCCH transmission power is controlled on a transmitting side depending on whether HS-DSCH transmission is to be executed, so as to maintain total reception power on a receiving side at a constant level. More specifically, the HS-SCCH transmission power of P2 is transmitted in the case where the HS-DSCH transmission is not to be executed, while the HS-SCCH transmission power is controlled to be P1=P2??P, in the case where the HS-DSCH transmission is to be executed, which increases the power by ?P. Accordingly, the total power on the receiving side remains unchanged regardless of whether the HS-DSCH transmission is to be executed, and hence the AGC function on the receiving side is kept from saturation, which allows preventing a receiving error.

Abstract: On ending communication, a timer is started in order to watch a communication stop time interval. On staring the next communication, a timer value of the timer is watched. If the timer value is less than a communication stop time interval threshold value, a cell search processing is carried out by using a cell search result on previous communication. By monitoring a communication stop time interval and by using a previous cell search result in the manner described above, a cell search circuit has an important function which realizes a high-speed cell search in the same sector (the same cell) on continuous communications and decreasing of a consumed power.

Abstract: A CDMA demodulation circuit to be adapted to fluctuation of arrival path timing and to obtain good reception characteristics, can be provided. A despreading timing correction control portion controls number of despreading timing correction candidates depending upon result of comparison in a correction value difference calculating portion. An effective path timing judgment portion makes judgment of an effective path timing on the basis of correlation peak information detected by the correlation value difference calculating portion. Respective despreading portions perform despreading at a plurality of timings including a path timing set from the effective path timing judgment portion and despreading timing correction candidates of M points before and after the set path timing.

Abstract: It is disclosed that a fire extinguishing method by gas, characterized in that, a fire extinguishing chemical of a gas type comprising at least one member selected from a group consisting of argon, nitrogen and carbon dioxide is discharged using foams, powder or water as a carrier so as to extinguish.

Abstract: In manufacturing thinned semiconductor chips by grinding a semiconductor wafer supported on a rigid support substrate, in order to remove the semiconductor wafer or semiconductor chips from the support substrate without damage to the semiconductor wafer or semiconductor chips, a semiconductor wafer at its surface is bonded on a light-transmissive support substrate through an adhesive layer having an adhesion force that is reduced upon exposure to light radiation, thereby exposing the back surface of the semiconductor wafer. A tape is bonded to the backside of the semiconductor wafer integrated with the support substrate after grinding, wherein the tape is supported at the periphery. Before or after bonding of the tape, light radiation is applied to the adhesive layer at a side close to the support substrate to reduce the adhesion force in the adhesion layer.

Abstract: A demodulation circuit and a demodulation method can optimize sampling timing with achieving reduction of power consumption. A preliminarily known signal is inserted in the digital transmission signal upon transmission. The demodulation circuit includes A/D converting means for performing A/D conversion of a base band signal obtained by demodulation of the digital transmission signal, and phase shifting means for causing phase shift of one of the digital transmission signal and the base band signal on the basis of the known signal after digital conversion by the A/D converting means and the known signal upon transmission.

Abstract: A path timing comparing section compares correlation peak values and their path timings detected from a delay profile with correlation peak values and their path timings assigned to fingers in the previous cycle. If a path timing determining section determines from the comparison result that a path with high intensity level has appeared, it immediately assigns the path to a finger. This enables maintaining good receiving characteristics.

Abstract: On ending communication, a timer (17) is started in order to watch a communication stop time interval (S1, S2). On staring the next communication, a timer value of the timer is watched (S5). If the timer value is less than a communication stop time interval threshold value, a cell search processing is carried out by using a cell search result on previous communication (S7). By monitoring a communication stop time interval and by using a previous cell search result in the manner described above, a cell search circuit has an important function which realizes a high-speed cell search in the same sector (the same cell) on continuous communications and decreasing of a consumed power.

Abstract: A pressure regulating valve which is comprised of a valve body being comprised of a cylinder, a spool slidably disposed in the cylinder with a clearance, the spool and the cylinder defining a pressure chamber and a space portion, and an urging member which urges the spool in a direction opposite to a direction of a force applied to the spool by fluid pressure in the pressure chamber. A supply passage fluidly communicates the cylinder and a fluid pressure supply source, and a drain passage fluidly communicates the cylinder and a sump. A through-passage formed in the spool fluidly communicates the pressure chamber and the space portion. An orifice disposed between the space portion and a sump limits a flow rate of fluid drained from the space portion to the sump. The spool is made of material having a lower thermal expansion coefficient than material of the valve body.

Abstract: According to the present invention, there is provided a covering composition for optical fiber comprising (A) an unsaturated polyester oligomer having substantially two or more (meth)acryloyl group in a molecule wherein a glass transition temperature of a cured substance thereof is 100 to 350° C.; (B) at least one oligomer selected from the group consisting of the following components: (B-a) epoxy modified (meth)acrylate oligomer, (B-b) polyether polyol modified (meth)acrylate oligomer, and (B-c) urethane polyether polyol modified (meth)acrylate or urethane polyester polyol modified (meth)acrylate; and (C) a photopolymerization initiator, as essential components. The cured material has highly elasticity and is superior in the heat stability, and as a result, the present invention provides the superior covered optical fiber with well balanced heat stability of the optical transmission properties and flexibility.

Abstract: A method of fire extinguishment with a gas, characterized by extinguishing a fire by ejecting at least one gaseous fire-extinguishing agent selected from the group consisting of argon, nitrogen, and carbon dioxide using a foam, powder, or water as a carrier.

Abstract: A demodulation circuit for CDMA mobile communications systems includes a path comparison portion that detects whether one and the same path has been successively detected or not, and a calculation portion that calculates the timing variation between currently detected path and previously detected path when one and the same path is detected successively. A path timing determination portion assigns a new path to the finger portion in place of a path with a maximum variation if the variation of the path with a maximum variation within the paths already assigned to the finger portion has the variation larger than/equal to a variation threshold when a new path which is not assigned to the finger portion and of which level is higher than/equal to a predetermined assignment threshold is detected.

Abstract: It is disclosed that a fire extinguishing method by gas, characterized in that, a fire extinguishing chemical of a gas type comprising at least one member selected from a group consisting of argon, nitrogen and carbon dioxide is discharged using foams, powder or water as a carrier so as to extinguish.

Abstract: A demodulation circuit and a demodulation method can optimize sampling timing with achieving reduction of power consumption. A preliminarily known signal is inserted in the digital transmission signal upon transmission. The demodulation circuit includes A/D converting means for performing A/D conversion of a base band signal obtained by demodulation of the digital transmission signal, and phase shifting means for causing phase shift of one of the digital transmission signal and the base band signal on the basis of the known signal after digital conversion by the A/D converting means and the known signal upon transmission.

Abstract: To provide a CDMA demodulation circuit and a CDMA demodulation method capable of maintaining good receiving characteristics even in a mobile communication environment. A fading pitch estimation portion estimates a time at which a level of a received input signal drops due to fading by monitoring fluctuation in the level provided by a rake combining portion. Before the level drops, a finger path assignment control portion controls assignment of path timing to a fingers portion performed by a finger path assignment portion.

Abstract: A radio communication apparatus which is used in a CDMA communication system, has a plurality of fingers, and performs rake reception, includes a delay profile calculating section and a finger path allocating section. The delay profile calculating section calculates a delay profile using a reception signal. The finger path allocating section allocates path positions to the plurality of fingers on the basis of the delay profile calculated by the delay profile calculating section. A delay profile calculation cycle in the delay profile calculating section is variable. A power consumption control method is also disclosed.

Abstract: An apparatus determines the thickness and composition of a multi-layered sample comprised of at least a copper layer and a tin-copper alloy plating layer disposed on the copper layer. The sample is irradiated with primary X-rays and an energy-dispersive X-ray detector detects fluorescent X-rays and diffracted X-rays emitted from the sample. An X-ray spectrum of the detected fluorescent X-rays and diffracted X-rays is generated. The concentration of copper in the tin-copper alloy plating layer of the sample is determined utilizing peak intensities of the diffracted X-rays in the X-ray spectrum. The thickness of the tin-copper alloy plating layer of the sample is determined utilizing peak intensities of the fluorescent X-rays in the X-ray spectrum and the determined copper concentration.