Abstract: A correlation processor derives a correlation value indicating correlation between each of a plurality of reference signals produced by extracting symbols from the synchronization signal of each pattern at a predetermined interval and a received signal. A controller compares the correlation value for each pattern and for each sample derived by the correlation processor with a threshold value and, when at least one correlation value is larger than the threshold value, changes symbols extracted to produce respective reference signals before causing the correlation processor to perform the same process, incorporating the received signal newly acquired. A first selector selects one of the plurality of patterns when all symbols of the synchronization signal have been extracted to produce the reference signals and at least one correlation value is larger than the threshold value.

Abstract: A correlation processor derives a correlation value indicating correlation between each of a plurality of reference signals produced by extracting symbols from the synchronization signal of each pattern at a predetermined interval and a received signal. A controller compares the correlation value for each pattern and for each sample derived by the correlation processor with a threshold value and, when at least one correlation value is larger than the threshold value, changes symbols extracted to produce respective reference signals before causing the correlation processor to perform the same process, incorporating the received signal newly acquired. A first selector selects one of the plurality of patterns when all symbols of the synchronization signal have been extracted to produce the reference signals and at least one correlation value is larger than the threshold value.

Abstract: A signal generator outputs a signal whose frequency is uniquely decided by frequency data set therein. A control section can set first data in the frequency generator as frequency data. The control section can transition among an access unimplementing state, an access stand-by state, and an access implementing state. A signal processing section can set second data in the signal generator as frequency data. The signal processing section can transition between an access allowed state and an access inhibited state. The control section transfers, to the signal processing section, a signal indicative of a desire to transition to the access implementing state and a signal indicative of transition of the control section from the access implementing state. The signal processing section transfers, to the control section, a signal indicative of transition of the signal processing section between the access allowed state and the access inhibited state.

Abstract: A signal generator outputs a signal whose frequency is uniquely decided by frequency data set therein. A control section can set first data in the frequency generator as frequency data. The control section can transition among an access unimplementing state, an access stand-by state, and an access implementing state. A signal processing section can set second data in the signal generator as frequency data. The signal processing section can transition between an access allowed state and an access inhibited state. The control section transfers, to the signal processing section, a signal indicative of a desire to transition to the access implementing state and a signal indicative of transition of the control section from the access implementing state. The signal processing section transfers, to the control section, a signal indicative of transition of the signal processing section between the access allowed state and the access inhibited state.

Abstract: The present invention provides an optical element, an optical element wafer and a method of manufacturing the same. The optical element comprises a optical film adhered on an substrate of the optical element. The method for manufacturing the optical element wafer comprising the steps of dividing a base material of a optical film into a plurality of optical films, separating the optical film base material by removing sections where no optical film is to be formed, adhering the divided optical films on the substrate base material, and a plurality of optical elements are obtained by dividing the substrate base material with the optical film adhered on one surface of the individual substrate.

Abstract: When a component is placed on a circuit board, a placement position is determined by method of elastic center. Then, it is determined whether the component was placed on the circuit board. After that, connectors are routed between the component and a design candidate component which is already placed. After that, the next component is set, and the above mentioned packaging processing is repeated.

Abstract: A layout designing apparatus for circuit boards including a mother board and a substrate which comprises a layout data storage unit for having areas to store data; an operation unit for giving directions; a mother board setting unit for creating the data about the mother board in the layout data storage unit according to the operation unit; a substrate placement unit for creating the data in the layout data storage unit according to the operation unit so that the substrate of a given configuration is placed on a given place on the mother board; a component placement unit for creating the data in the layout data storage unit according to the operation unit so that components of given configurations are placed on given places on the mother board and on the substrate; a routing unit for creating the data in the layout data storage unit according to the operation unit so that routing paths of given configurations are laid out on the mother board and on the substrate; a display unit; and a layout data display cont

Abstract: According to the printed-circuit board of the preset invention, the circuit modification unit 120 adds a noise reduction component, based on circuit board information inputted to the design information input unit 106. Then, the layout unit 132 sets a layout after the design rule generation unit 133 generates a design rule. The rated value modification unit 124 determines rated values of noise reduction components in accordance with the layout. Thus, design rule generation, noise reduction component addition, and rated value determination are automatically performed to satisfy the electric characteristics of evaluation targets. Consequently, interactive process in designing is reduced and the efficiency of designing can be realized.

Abstract: Resin compositions for the inner coat of semiconductors which include(A) 100 parts by weight of a polysiloxane having vinyl groups and having a viscosity of 100 to 800cP at 25.degree. C., said polysiloxane having a general formula ##STR1## in which V represents a vinyl group, Me represents a methyl group, Ph represents a phenyl group, R represents a methyl group or a phenyl group and both k and l represent natural numbers which are variables within the range of 0.01.ltoreq.l/(k+l).ltoreq.0.2,(B) 1 to 35 parts by weight of a polysiloxane haivng a viscosity of 2 to 500cP at 25.degree. C., said polysiloxane having a general formula ##STR2## in which Me represents a methyl group, and both m and n represent natural numbers which are variables within the range of 0.05.ltoreq.n/(M+n).ltoreq.0.3,(C) 0.

Abstract: A compressor comprises a main compressor body of compressing air, an unloader valve device provided at the suction side of the main compressor body, a bleeding pipe provided between the ejection side of the main compressor body and the unloader valve device, and a controlling valve mechanism provided inside the bleeding pipe. The controlling valve mechanism opens by detecting the fluid pressure at the ejection side of the main compressor body. Further, the unloader valve device has a check valve which opens upon-no-load operation and stopping of the operation of the main compressor body, a main valve which opens due to the air released through the bleeding pipe when the controlling valve mechanism opens, a bleeding passage for releasing the released air supplied to the suction side of the check valve, and a relief passage which communicates when the main valve opens, to release the released air to the suction side of the main compressor body.