摘要:
A variable gain amplifier includes a plurality of element circuits each having an output current that increases at a constant rate with a change in a variable control voltage, voltages that increase in steps of the change being respectively supplied to the plurality of element circuits as their reference voltages and the control voltage being supplied to each of the plurality of element circuits, multipliers for multiplying the output currents from the plurality of element circuits by one another, and an amplifier for carrying out a variable gain amplification based on an output current from the multipliers. The variable gain amplifier can suppress any change in the characteristics thereof due to temperature compensation of the characteristics and variations in manufacturing of transistors, and carry out a linear gain control operation on the control voltage when the gain is expressed in a logarithm.
摘要:
A resonator minimizes degradation of the Q factor, accurately adjusts the frequency, and reduces the size and profile thereof. A voltage controlled oscillator including such a resonator includes a multilayer substrate. The multilayer substrate includes a first grounding conductor layer, a first dielectric layer, a strip line layer, a second dielectric layer, a second grounding conductor layer, and a third dielectric layer. A strip line is disposed on the strip line layer, and a microstrip line is disposed on the third dielectric layer. The strip line is connected to the microstrip line via a through hole to define the resonator. A portion of the second grounding conductor layer that faces the microstrip line is removed.
摘要:
A dispersion solution of colloidal silica is coated on a pigment layer composing a filter layer and then dried. Thus, the state of the front surface of the filter layer (pigment layer) is controlled without affecting the filter layer (pigment layer). A phosphor layer is formed on the filter layer (pigment layer).
摘要:
A tampon has an absorbent material and an accommodation barrel for accommodating the absorbent material therein. The accommodation barrel includes an absorbent material accommodating portion for accommodating therein the absorbent material and a clamping portion continuously connected with the absorbent material accommodating portion and has a flexible property. The clamping portion is formed as a large diameter portion which is provided with a ring on an outer circumferential edge thereof.
摘要:
A damping support structure for preventing vibrations of an apparatus table supporting an apparatus for manufacturing ultra-high precision devices such as semiconductors and printed circuit boards. The apparatus table is supported in suspension by support members, with its apparatus mounting surface disposed at a low level. The support members are supported by stationary members through vertically extendible and contractible first air springs. Horizontally extendible and contractible second air springs are disposed between the stationary members and the apparatus table. The first and second air springs serve to mitigate vertical and horizontal vibrations of the apparatus table, respectively. At the same time, in response to vibrations of the apparatus table detected by vibration sensors, air supply from air supply devices to inside spaces of the first and second air springs is controlled to apply controlling forces to the apparatus table through the first and second air springs for displacing the apparatus table relative to the stationary members and maintaining the apparatus table in an absolutely stationary state.
摘要:
A stretchable, fastening tape of the invention comprising a solid middle portion made of an elastic material and two solid end portions made of a non-elastic material which are integrally bonded through respective solid boundary regions to said solid middle portion, said end and middle portions having substantially the same structural dimension, and wherein said elastic material being, a composition comprising (a) and (b), or (a), (b) and (c) as defined below, and said non-elastic material is constituted of (d) as defined:(a) 100 parts by weight of a hydrogenated block copolymer represented by a general formula, A-(B-A).sub.n, wherein A is a block polymer of a monovinyl-substituted aromatic hydrocarbon, B is an elastomeric block polymer of a conjugated diene, the weight ratio of A to B being 20/80 to 40/60, and n is an integer of 1 to 4;(b) 10 to 80 parts by weight of a resin having a melting or softening point of 80.degree. C. or higher and an average molecular weight of 400 to 2,000;(c) 0 to 50 parts by weight of a thermoplastic olefin resin; and(d) a resin selected from the group consisting of polyethylene, polypropylene, poly(ethylene-propylene), poly(ethylene-vinyl acetate), and poly(styrene-butadiene), used alone or as a composite resin thereof.
摘要:
A safe and widely-applicable food intake regulator can be provided by using at least one peptide selected from the group consisting of a fish or mammalian melanin-concentrating hormone (MCH) and enzymatic digests thereof, which have the activity to suppress food intake.
摘要:
An impulse response synthesis method is carried out by a dispersion calculation process for calculating a dispersion of phase characteristics in association with a given room based on a volume of the room, a degree of sound absorption of the room, and a distance between a sound source and a receiving point arranged in the room, a noise creation process for creating a noise having the dispersion of the phase characteristics calculated in the dispersion calculation process, a trend addition process for adding a phase trend to the noise created by the noise creation process in accordance with the distance between the sound source and the receiving point and obtaining a phase characteristic of a minimum-phase component from the noise added with the phase trend, and a synthesis process for synthesizing an impulse response based on the phase characteristic of the minimum-phase component, the impulse response being used to create reverberation for the room.
摘要:
An endoscope device according to the present invention includes an endoscope having an image pickup device for capturing an image of a subject, which can observe the subject in at least one observing mode, and a signal processing device, which has the function to receive a signal from the image pickup device and execute signal processing corresponding to a plurality of observing mode, comprising an identifying unit that identifies the observing mode of a connected endoscope based on information from the connected endoscope, wherein the signal processing device executes only signal processing corresponding to the observing mode identified by the identifying unit when the endoscope is connected to the signal processing device.
摘要:
After establishing a connection between an ATU-C and an ATU-R and having a state where data communication is enabled, the ATU-R checks a packet that flows through a network at the user side. When there is no packet addressed to the ATU-R for a predetermined time period, the ATU-R transmits, to the ATU-C, a request to transition to an energy-save mode. The ATU-C and AUT-R determines a parameter to be used for the energy save mode, the parameter enabling a number of carriers and/or transmission power to be decreased compared to the ones in a normal mode. Using the determined parameter, a state in which data communication is enabled is maintained.