Patent application number | Description | Published |
20080204307 | SEMICONDUCTOR DEVICE FOR SPREAD SPECTRUM RADAR APPARATUS - Provided is a semiconductor device for a spread spectrum radar apparatus which suppresses spurious signals resulting from non-linearity of active elements. The semiconductor device as the inverse spread spectrum modulation unit for the spread spectrum radar apparatus has a coupled line of two lines and another coupled line of two lines. The semiconductor device includes: an unbalanced to balanced transforming circuit which converts a received signal inputted as an unbalanced signal into a balanced signal pair; a switch circuit having one or more transistors; and a balanced inverse spread spectrum circuit which obtains as differential signal PN signals belonging to the same sequence code as a PN code which is used to generate an original signal of the received signal, also obtains the balanced signal pair from the unbalanced to balanced transforming circuit, and performs inverse spread spectrum modulation on the balanced signal pair by the switch circuit using the PN codes inputted as the differential signal. | 08-28-2008 |
20090003412 | SPREAD SPECTRUM RADAR APPARATUS - To provide a spread spectrum radar apparatus which can lower the probability for misidentifying a presence of object. The spread spectrum radar apparatus includes: a pseudo-noise code for transmission generation unit which generates a pseudo-noise code for transmission; a spread spectrum modulation unit which performs spread spectrum modulation on a carrier wave using the pseudo-noise code for transmission; a pseudo-noise code for receiver generation unit which generates a pseudo-noise code for receiver which is a time-delayed pseudo-noise code for transmission; a spread spectrum demodulation unit which performs spread spectrum demodulation on a received signal, using the pseudo-noise code for receiver, so as to output a correlation signal; a code change control unit which changes the pseudo-noise codes for transmission and receiver into a different kind of the pseudo-noise codes at every predetermined time; and a correlation value calculation unit which averages or integrates, with the number of kinds of the generated pseudo-noise codes, an intensity of the correlation signal. | 01-01-2009 |
20090015464 | SPREAD SPECTRUM RADAR APPARATUS - A spread spectrum radar apparatus includes: a transmission unit which generates a spread signal that is a spectrum-spread signal, using a first oscillator signal, a second oscillator signal, and a transmission PN code, and which emits the spread signal as a detection radio wave; and a reception unit which receives, as a reception signal, the detection radio wave reflected from an object, and which generates an intermediate frequency signal by despreading the reception signal based on the first oscillator signal and a reception PN code obtained by delaying the transmission PN code. | 01-15-2009 |
20090047872 | POLISHING PAD - To provide a polishing pad which is insusceptible to clogging of groove with abrasive particles and grinding dusts during polishing, and leads to little decrease in polishing rate even after long-term continuous use. A polishing pad of the present invention has a polishing layer formed of polyurethane resin foam having fine-cells, and asperity structure formed in a polishing surface of the polishing layer, and is featured in that the polyurethane resin foam is a reaction cured product between isocyanate-terminated prepolymer containing high-molecular-weight polyol component and isocyanate component, and a chain extender, and contains a silicon-based surfactant having combustion residue of not less than 8 wt %. | 02-19-2009 |
20090073029 | RADAR APPARATUS - A radar apparatus includes a PN code generator for generating a PN code, a variable delay device for delaying the PN code, an oscillator for generating a high-frequency signal, a transmission frequency multiplier for multiplying a frequency of a transmission differential signal obtained by being divided from the high-frequency signal by 3, a reception frequency multiplier for multiplying a frequency of a reception differential signal obtained by being divided from the high-frequency by 3, a transmitter for generating a radar wave by using the differential signal obtained through the multiplication by the transmission frequency multiplier and the PN code generated by the PN code generator, and a receiver for generating an in-phase signal and a quadrature signal from a reflected wave by using the differential signal obtained through the multiplication by the reception frequency multiplier and the PN code delayed by the delay device. | 03-19-2009 |
20090074031 | SPREAD SPECTRUM RADAR APPARATUS - It is an object of the present invention to prevent the sensitivity of radar apparatus from falling. A spread spectrum radar apparatus which detects an object, includes a carrier wave oscillator which generates a carrier wave, transmission unit which transmits a spread signal which is the carrier wave spread using a first PN code, an intermediate demodulated signal generating unit which receives a reflected wave which is the spread signal reflected from the object, and despreads the reflected wave using a delayed second PN code that has a cyclically reversed logical value of the first PN code, to generate an intermediate demodulated signal, a low-pass filter through which a specific frequency component of the intermediate demodulated signal passes, and a sampling unit which samples an output signal from the low-pass filter, and the sampling unit samples the output signal in synchronization with the cycle of the reversal. | 03-19-2009 |
20090091491 | RECEIVING DEVICE FOR SPREAD SPECTRUM RADAR APPARATUS - Provided is a receiving device that is used for a spread spectrum radar apparatus, receives a spectrum-spread signal, and obtains a precise radar spectrum, and includes: a despreading unit that (i) generates first and second despread signals that are generated by despreading a reception signal using a pseudo-noise code, the second despread signal passing through a transmission line carrying a current having a current value identical to a current value of a current carried by a transmission line through which the first despread signal passes, and (ii) includes a first transistor pair including first and second transistors having an identical characteristic, the first transistor outputting the first despread signal, and the second transistor outputting the second despread signal; and a quadrature demodulating unit that generates an in-phase signal and a quadrature signal by quadrature-demodulating the first despread signal and the second despread signal, respectively. | 04-09-2009 |
20090093202 | METHOD FOR MANUFACTURING POLISHING PAD - A method for manufacturing a polishing pad, which may be laminated, with a small number of manufacturing steps, high productivity and no peeling between a polishing layer and a cushion layer includes preparing a cell-dispersed urethane composition by a mechanical foaming method; continuously discharging the cell-dispersed urethane composition onto a face material, while feeding the face material; laminating another face material on the cell-dispersed urethane composition; curing the cell-dispersed urethane composition, while controlling its thickness to be uniform, so that a polishing layer including a polyurethane foam is formed; cutting the polishing layer parallel to the face into two pieces so that two long polishing layers each including the polishing layer and the face material are simultaneously formed; and cutting the long polishing layers to produce the polishing pad. | 04-09-2009 |
20090135053 | CODE GENERATION APPARATUS - The code generation apparatus includes: a clock generation unit ( | 05-28-2009 |
20090137188 | POLISHING PAD - A polishing pad provides excellent optical detection accuracy properties over a broad wavelength range (particularly at the short-wavelength side). A method for manufacturing a semiconductor device includes a process of polishing the surface of a semiconductor wafer with this polishing pad. The polishing pad has a polishing layer containing a polishing region and a light-transmitting region, wherein the light-transmitting region includes a polyurethane resin having an aromatic ring density of 2 wt % or less, and the light transmittance of the light-transmitting region is 30% or more in the overall range of wavelengths of 300 to 400 nm. | 05-28-2009 |
20090137189 | POLISHING PAD - An object of the present invention is to provide a polishing pad excellent in optical detection accuracy in a broad wavelength range (particularly at the short-wavelength side) and capable of preventing a slurry from leaking from the boundary between a polishing region and a light-transmitting region. Disclosed is a polishing pad including at least a transparent support film laminated on one side of a polishing layer including a polishing region and a light-transmitting region, wherein the light transmittance of an optical detection region containing at least the light-transmitting region and the transparent support film is 40% or more in the overall range of wavelengths of 300 to 400 nm. | 05-28-2009 |
20090148687 | LAYERED SHEETS AND PROCESSES FOR PRODUCING THE SAME - Provided herein is a process for producing a layered sheet. The process involves preparing a cell dispersed urethane composition by a mechanical foaming method. The cell dispersed urethane composition is applied to a base material sheet and cured to produce a polyurethane foam layer of uniform thickness. A releasing sheet may be utilized to make the thickness of the polyurethane foamed layer uniform. Also, provided herein is a layered sheet produced by the above process. The polyurethane foamed layer may have spherical fine cells having an average cell diameter of 20 to 300 μm. The polyurethane foamed layer may have a specific gravity of 0.2 to 0.5. The polyurethane foamed layer may also have a Asker C hardness of 10 to 50 degrees. | 06-11-2009 |
20090171051 | Method For Producing Amide Compound - [Problems] The present invention provides a method for efficiently producing a corresponding amide compound from a nitrile compound by a reaction using a nitrile hydratase and a method for producing an amide-based polymer excellent in quality from the amide compound. In addition, the present invention provides a method for more efficiently producing an acrylamide with higher quality by a microbial catalyst containing a nitrile hydratase and the like and a method for producing an acrylamide-based polymer, which is excellent in hue, has a good balance between the water solubility and the high molecular weight and is also excellent in quality, by using the acrylamide. | 07-02-2009 |
20090286015 | Curable resin composition, cured product thereof, and various articles derived from those - A curable resin composition which is easily cured by heating or ultraviolet irradiation and capable of forming a thick cured film due to low shrinkage. This curable resin composition enables to obtain a cured product satisfying various characteristics such as heat resistance, chemical resistance, high surface hardness and high refractive index. Also disclosed is a cured product obtained from such a composition. Specifically disclosed is a curable resin composition containing at least one substance selected from the group consisting of condensates (A) obtained by hydrolyzing and condensing a thiol group-containing alkoxysilane (a1) represented by the following general formula (1): R1Si(OR2)3 (1) (wherein, R1 represents a hydrocarbon group having at least one thiol group and 1-8 carbon atoms or an aromatic hydrocarbon group having at least one thiol group, and R2 represents a hydrogen atom, a hydrocarbon group having 1-8 carbon atoms or an aromatic hydrocarbon group), compounds (B) having an epoxy group, compounds (C) having an isocyanate group and compounds (D) having a carbon-carbon double bond. | 11-19-2009 |
20090311759 | PROCESS FOR PRODUCING (METH) ACRYLAMIDE - [Problem] To provide a process for producing (meth)acrylamide using a microbial catalyst, wherein production steps can be simplified and production cost can be reduced. | 12-17-2009 |
20100009611 | METHOD FOR MANUFACTURING A POLISHING PAD - A method for inexpensively and easily manufacturing a polishing pad of excellent durability and polishing speed stability includes preparing a cell dispersed urethane composition by mechanical foaming, applying the cell dispersed urethane composition onto a base material layer, forming a polyurethane foamed layer having roughly spherical interconnected cells by curing the cell dispersed urethane composition, and regulating the thickness of the polyurethane foamed layer uniformly. | 01-14-2010 |
20100029182 | POLISHING PAD - A polishing pad of excellent durability has a polishing layer is arranged on a base material layer, and the polishing layer comprises a thermosetting polyurethane foam having roughly spherical interconnected cells with an average cell diameter of 35 to 300 μm. | 02-04-2010 |
20100029185 | POLISHING PAD AND A METHOD FOR MANUFACTURING THE SAME - An object of the invention is to provide a polishing pad excellent in durability and in the adhesiveness between a polishing layer and a base material layer. The first invention relates to a polishing pad comprising a polishing layer arranged on a base material layer, wherein the polishing layer comprises a thermosetting polyurethane foam having roughly spherical interconnected cells having an average cell diameter of 20 to 300 μm, the polyurethane foam comprises an isocyanate component and an active hydrogen-containing compound as starting components, and the active hydrogen-containing compound comprises 30 to 85% by weight of a high-molecular-weight polyol having 2 to 4 functional groups and a hydroxyl value of 20 to 100 mg KOH/g. | 02-04-2010 |
20100127916 | SHAPE MEASUREMENT INSTRUMENT AND SHAPE MEASUREMENT METHOD - A shape measurement instrument includes a plurality of transmitters | 05-27-2010 |
20100194627 | SPREAD SPECTRUM RADAR APPARATUS, METHOD FOR DETERMINING VIRTUAL IMAGE, AND METHOD FOR SUPPRESSING VIRTUAL IMAGE - The spread spectrum radar apparatus in the present invention (i) includes: a transmission code generator ( | 08-05-2010 |
20100215937 | CURABLE RESIN COMPOSITION, CURED PRODUCT THEREOF, AND VARIOUS ARTICLES DERIVED FROM THOSE - A curable resin composition which is easily cured by heating or ultraviolet irradiation and capable of forming a thick cured film due to low shrinkage. This curable resin composition enables to obtain a cured product satisfying various characteristics such as heat resistance, chemical resistance, high surface hardness and high refractive index. Also disclosed is a cured product obtained from such a composition. Specifically disclosed is a curable resin composition containing at least one substance selected from the group consisting of condensates (A) obtained by hydrolyzing and condensing a thiol group-containing alkoxysilane (a1) represented by the following general formula: | 08-26-2010 |
20110012774 | RANGE FINDER, SHAPE MEASURING DEVICE, AND METHODS FOR THEM - The range finder includes a transmitting unit ( | 01-20-2011 |
20110089543 | SEMICONDUCTOR DEVICE WITH A BALUN - A semiconductor integrated circuit device with a balun which is formed above a conductive semiconductor substrate and which includes a dielectric film, an unbalanced line for transmitting an unbalanced signal, and balanced lines for transmitting a balanced signal. The unbalanced line is placed opposite to the balanced lines via a nano-composite film that is a region of the dielectric film. The nano-composite film, interposed between the unbalanced line and the balanced lines, has a relative permittivity higher than that of other regions of the dielectric film. This allows suppression of electromagnetic coupling of transmission lines or passive elements other than the balun, thereby providing a semiconductor device with a wide-band and small-size balun. | 04-21-2011 |
20110291111 | SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE MANUFACTURING METHOD - A chip size package includes: a radio frequency substrate having a radio frequency semiconductor circuit formed on a principal surface; a semiconductor cover substrate arranged at a position facing the principal surface of the radio frequency substrate; and a joining frame arranged in a manner such as to surround the radio frequency semiconductor circuit between the radio frequency substrate and the semiconductor cover substrate, the joining frame joining the radio frequency substrate and the semiconductor cover substrate, wherein: the radio frequency substrate further has a wire formed on a surface opposite to the principal surface; and the radio frequency semiconductor circuit and the wire are electrically connected to each other through a via hole penetrating through the radio frequency substrate in a thickness direction thereof. | 12-01-2011 |
20110291271 | SEMICONDUCTOR CHIP AND SEMICONDUCTOR DEVICE - A semiconductor chip such as an MMIC is provided. The semiconductor chip has: a Si semiconductor as a substrate; and a low-loss transmission line, and can be easily connected to a circuit board on which the semiconductor chip is to be mounted and can ensure a stable GND potential. The semiconductor chip is a flip-chip semiconductor chip, and includes: a Si substrate; an integrated circuit manufactured on a main surface of the substrate; a dielectric film formed above the integrated circuit; and a conductor film for grounding formed on an upper surface of the dielectric film. The integrated circuit includes a wiring layer including a signal line which transmits signals for the integrated circuit. The signal line, the dielectric film, and the conductor film constitute a microstrip line. | 12-01-2011 |
20120293359 | RADAR IMAGING APPARATUS, IMAGING METHOD, AND PROGRAM THEREOF - A radar imaging apparatus includes: (i) a delay code generation unit which repeats, for M scan periods, scan processing of generating, using a transmission code, N delay codes in a scan period for scanning N range gates having mutually different distances from the radar imaging apparatus; (ii) a signal storage unit which stores, in association with a range gate and a scan period, a baseband signal; (iii) a memory control unit which repeatedly writes, in the signal storage unit, for the M scan periods, N demodulated signals corresponding to a single scan period, and reads out a group of M demodulated signals corresponding to mutually different scan periods; (iv) a Doppler frequency discrimination unit which performs frequency analysis on demodulated signals having the same range gate; and (v) a direction of arrival calculation unit which estimates a direction of a target. | 11-22-2012 |
20130314268 | SPREAD SPECTRUM RADAR APPARATUS AND METHOD OF CONTROLLING THE SAME - A radar apparatus includes: a transmission circuit; a reception circuit; a Doppler filter that discriminates baseband signals per distance and per Doppler frequency corresponding to the speed of an object; a threshold processing unit group that removes unwanted signals from output signals of the Doppler filter; and an estimation unit that estimates a position and speed of the object from the output signals removed of the unwanted signals. The threshold processing unit group includes threshold processing units corresponding to respective discriminated Doppler frequencies. Each threshold processing unit calculates a threshold value for a corresponding Doppler frequency using a peak value of the output signals in a range of distance corresponding to an object detection area, and determines output signals in the range that are no greater than the threshold value to be the unwanted signals. | 11-28-2013 |
20140023120 | SIGNAL PROCESSING APPARATUS, RADAR APPARATUS, AND SIGNAL PROCESSING METHOD - A signal processing apparatus which calculates a correlation value between an input analog signal and a digital code includes: an adder which adds a noise signal to the analog signal; an analog comparator which compares, synchronously with a clock signal having a first period, a magnitude of the analog signal added with the noise signal with a reference voltage; a multiplier which receives an input of a comparison result from the analog comparator and the digital code and calculates, synchronously with the clock signal, an exclusive OR between the comparison result and the digital code; and a counter which accumulates calculation results from the multiplier over a second period in a time series, and calculates, as the correlation value, a difference between an accumulation result and one-half of a quotient of the second period and the first period. | 01-23-2014 |