Abstract:
PROBLEM TO BE SOLVED: To easily set a dynamic range or a noise figure or the like to an optimum value by contriving to decrease gain control sensitivity. SOLUTION: A gain control MOS transistor M4 is differentially connected to a second MOS transistor M2 in first and second MOS transistors M1, M2 configuring a cascode amplifier, an AGC control voltage VAGC is applied to a gate of the gain control MOS transistor M4 and a device area ratio of the second MOS transistor M2 to the gain control MOS transistor M4 is selected to be 1:N (N≥1) so that a sudden change caused in the gain can be suppressed and a drain current of the first MOS transistor M1 is made constant independently of the gain control even in a region wherein the AGC control voltage VAGC is small. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To reinforce a bonding strength of a mother board with an interposer using a grounding land for the package shielding case or any other attached patterns. SOLUTION: In the package corresponding to the BGA and LGA mounting methods, when the LGA mounting is performed, a bonding strength of a metal pattern on the mother board with the package can be reinforced using a land attached for the bonding reinforcement which is never used in the BGA mounting case. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To obtain a pair of gloves enabling a wearer to sufficiently recognize the condition of the fingertip when working at night or in a dark place. SOLUTION: This pair of gloves 1 forming a thumb part 1d covering at least part of the thumb 11 and an index finger part 1e covering at least part of the index finger 12 is obtained by attaching luminous parts 2 and 3 to both the thumb part 1d and the index finger part 1e, or either one of them. The first luminous part 2 is attached to the index finger part 1e adjacent to the thumb part 1d in the case of attaching the first luminous part 2 to the thumb part 1d, and the second luminous part 3 is attached to the thumb part 1d adjacent to the index finger part 1e in the case of attaching the second luminous part 3 to the index finger part 1e. As the result of this, light is irradiated to the middle part of the fingertip of both the thumb 11 and the index finger 12 or either one of them to sufficiently light up the fingertip as working parts, and a worker can sufficiently recognize the condition of the working part. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a technology of reducing the power consumption of a transistor circuit composed of one or more transistors. SOLUTION: A differential amplifier, in one embodiment, is provided with a pair of transistors 12 and 13, resistors 14 and 15 for converting a current flowing to a DC power source (VDD) and the transistors 12 and 13 to a voltage, a transistor 11 which selectively constitutes a current mirror together with a transistor 16a or 16b to deliver a current from a constant current source 17, and a changeover switch 19 which selects a route on the basis of a switching signal. The transistor 16a is a noticed transistor in the circuit, and the smaller-sized transistor 16 is connected in parallel with the transistor 16a, and the changeover switch 19 is provided to perform switching between a route passing the transistor 16a and that passing the transistor 16b. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a non-contact gate device capable of generating a magnetic field in a direction other than an original direction of the magnetic field by a power feed coil; and to provide a non-contact gate device capable of surely feeding power to an identified medium by generating a magnetic field in a plurality of directions by power feed coils arranged in a single direction. SOLUTION: A magnetic field generation means has: a first power feed coil 12 disposed in one side part of a passing path 16; a second power feed coil 14 disposed in the other side part of a passing path 16 and installed oppositely to the first power feed coil 12; an excitation power source part 19 for driving the first and second power feed coils 12 and 14 at the same cycle; and a phase control part 21 for periodically changing a phase difference of an alternating current supplied to the first and second power feed coil 12 and 14. The magnetic field generation means is characterized in that combined magnetic lines of force generated in the passing path 16 are periodically directed in different directions. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To prevent solder balls from being wrongly mounted when solder balls are collectively mounted on a plurality of BGAs. SOLUTION: The pad formation surface of a CSP 400 is photographed, a pad arrangement is recognized through image processing, and the CSP 400 is positioned for transferring solder balls based on the recognition results of the pad arrangement, whereby the positions of the pads 401 on the pad formation surface of the CSP 400 can accurately be matched with those of solder ball suction nozzles possessed by a solder ball mounting device independently of how pads 401 are formed and arranged on the pad formation surface of the CSP 400. COPYRIGHT: (C)2005,JPO&NCIPI