摘要:
A receiving apparatus includes a first transform unit configured to perform orthogonal transform on a time-domain input signal and perform saturation when an overflow occurs to transform the input signal into a plurality of frequency-domain signals, a second transform unit configured to perform orthogonal transform on the time-domain input signal while restricting the number of bits during orthogonal transform and continue operations while not performing saturation when at least one of the operations overflows and leaving the operation overflowing to transform the input signal into a plurality of frequency-domain signals, and a bit restricting control unit configured to control the number of bits during orthogonal transform by the second transform unit based on output signals of the first transform unit.
摘要:
A millimeter wave imaging apparatus includes: an imaging device having a plurality of millimeter wave sensors that are arranged in a planar manner and receive millimeter waves radiated from a subject to detect signal levels thereof; an image data generation device that generates image data of the subject based on an output from each of the millimeter wave sensors constituting the imaging device; and a case that has a placement surface on which the subject can be placed and which permits transmission of the millimeter waves. The imaging device is arranged below the placement surface of the case, so that the millimeter waves, which are radiated from a bottom part of the subject placed on the placement surface of the case, are received by the plurality of millimeter wave sensors.
摘要:
A semiconductor package includes a package main body having a base portion and a semiconductor device accommodating portion, electric terminals electrically connected to a semiconductor device in the accommodating portion and exposed to an outer surface, and a high heat transfer element disposed in the base portion to extend from a heat generation site corresponding position corresponding to a heat generating site of the semiconductor device to a position in an outside of the heat generation site corresponding position. The base portion is configured by bringing a plurality of thin plates in close contact with each other to bond them integrally, and the high heat transfer element includes at least one combination of fluid passage formed in the base portion and a heat transfer fluid sealed in the passage, or at least one heat pipe.
摘要:
An antenna diversity receiver includes a plurality of antennas, a plurality of demodulating devices prepared per path, to which reception signals received by the plurality of antennas and coming from a plurality of paths are inputted, a synthesizing unit synthesizing demodulated results of the reception signals with respect to the plurality of paths, which are outputted from the plurality of demodulating devices, and a correlation calculating unit calculating a correlation between the antennas that are common between the plurality of paths, and each of the demodulating devices has a plurality of demodulating units outputting demodulation signals obtained by executing a demodulating process of the reception signals corresponding to the respective antennas, a path weight calculating unit calculating a path weight representing a reception level ratio in the demodulating device by using a value obtained at a stage of the demodulating process by each of the demodulating units, and an output unit outputting, to the synthesizing unit, as a result of the demodulation, a result of synthesizing the demodulation signals of the respective demodulating units, which are multiplied by the synthesization coefficient using the correlation and by the path weight.
摘要:
An interference reduction receiver is disclosed. The interference reduction receiver includes a weight generating unit for obtaining weights by multiplying a signal correlation matrix of an input signal and a channel response vector. The input signal is despread at two or more predetermined timings, the despread signals are multiplied by the weights, the weight-multiplied signals are added, and an original signal is obtained.
摘要:
An object of the present invention is to provide an adhesive substance capable of being easily peeled off without damaging an adherend by giving stimulation thereto, a tape employing this adhesive substance, and a method for peeling off the adhesive substance. An adhesive substance, which contains a gas-generating agent for generating gas by stimulation, gas generated from said gas-generating agent being discharged to the outside of said adhesive substance so as not to foam said adhesive substance, and gas generated from said gas-generating agent peeling at least part of an adhesive surface of said adhesive substance off an adherend so as to decrease adhesive strength.
摘要:
A digital probing type atomic force microscope (AFM) for measuring high aspect structures with high precision. A probe 21 is vibrated while moved to the vicinity of an atomic force region on a specimen surface. The position of the probe is measured when a specified atomic force is detected in the atomic force region. The probe is then moved away from the specimen surface. A servo system for maintaining a gap between the probe and specimen surface is stopped. The probe is moved to a measurement point along the specimen surface while kept away from the specimen. The vibration frequency is a frequency slightly offset from the cantilever resonance point. The atomic force is detected based on the vibration amplitude of the cantilever.
摘要:
The present invention provides a solid electrolyte switching device, which can maintain an on or off state when the power source is removed, the resistance of which in on the state is low, and which is capable of integration and re-programming, and FPGA and a memory device using the same, and a method of manufacturing the same. A solid electrolyte switching device (10, 10′, 20, 20′) comprises a substrate (11) in which surface is coated with an insulation layer, a first interconnection layer (13) set on said substrate (11), an ion supplying layer (17) set on said first interconnection layer (13), a solid electrolyte layer (16) set on said ion supplying layer (17), an interlevel insulating layer (12) having a via hole set to cover said first interconnection layer (13), said ion supplying layer (17), and said solid electrolyte layer (16), a counter electrode layer (15) set to contact said solid electrolyte layer (16) through the via hole of said interlevel insulating layer (12), and a second interconnection layer (14) set to cover said counter electrode layer (15). The switching device can be provided in which the on state, or the off state can be arbitrarily set by the threshold voltage applied between the ion supplying layer (17) and the counter electrode layer (15), which is non-volatile, and the resistance of which in the on state is low. The switching device of the present invention is also simple and fine in structure, and hence makes it possible to provide smaller switching devices than are currently available. Further, using the switching device of the present invention as the switching device of an FPGA (30) makes it possible to provide re-programmable and fast operation FPGA (30). Using the switching device of the present invention as a memory cell of a memory device makes it possible to provide a non-volatile memory device with high programming and reading speed.
摘要:
The present invention relates to superconductive filter technology. According to the arrangement of the superconductive filter (1), a columnar resonating member (23) having a superconductive material formed on the surface thereof is attached at one of its ends thereof to an inner wall (22) of a filter housing (21) so that a space is interposed between the columnar resonating member and each of connectors (27a, 27b) which are connectable to a signal input/output cables (5a, 5b), respectively. According to this arrangement, heat conduction from the outside can be suppressed as far as possible, and the superconductive condition can be created with stability, with the result that a stable filtering characteristic can be created. Further, the superconductive filter according to the present invention will become excellent in power withstand performance, and hence even if the number of stages of filters is increased for attaining a steep cutoff characteristic, the loss deriving from the increased number of stages can be suppressed to the minimum level.
摘要:
The present invention relates to superconductive filter technology. According to the arrangement of the superconductive filter (1), a columnar resonating member (23) having a superconductive material formed on the surface thereof is attached at one of its ends thereof to an inner wall (22) of a filter housing (21) so that a space is interposed between the columnar resonating member and each of connectors (27a, 27b) which are connectable to a signal input/output cables (5a, 5b), respectively. According to this arrangement, heat conduction from the outside can be suppressed as far as possible, and the superconductive condition can be created with stability, with the result that a stable filtering characteristic can be created. Further, the superconductive filter according to the present invention will become excellent in power withstand performance, and hence even if the number of stages of filters is increased for attaining a steep cutoff characteristic, the loss deriving from the increased number of stages can be suppressed to the minimum level.