Abstract: An electron beam length-measurement apparatus for measuring a length of a predetermined portion of an object by using an electron beam, includes: an electron gun for emitting the electron beam; a deflecting unit for deflecting the electron beam; an object holding unit on which the object is to be placed; a detector for detecting electrons that are scattered by the electron beam; a memory for storing layout position information that specifies a layout position at which the predetermined portion of the object; a length-measurement scanning controller for controlling the deflecting unit to scan with the electron beam to allow the layout position on the object to be irradiated with the electron beam; and a measurement unit operable to measure the length of the predetermined portion of the object based on a changing manner of the electrons successively detected by the detector while the length-measurement scanning controller scans with the electron beam.

Abstract: The processing volume in calculating a weight value for perceptually weighted vector quantization is decreased to speed up the processing or to minimize hardware. To this end, an inverted LPC finds LPC (linear prediction coding) residuals of an input speech signal which are processed with sinusoidal analysis encoding by a sinusoidal analysis encoding unit. The resulting parameters are processed by a vector quantizer with perceptually weighted vector quantization. For this perceptually weighted vector quantization, the weight value is calculated based on results of an orthogonal transform of parameters derived from the impulse response of the transfer function of the weight.

Abstract: A rolling guide apparatus comprises a first slide member and second slide member. The first slide member includes a pair of wing portions and a connecting portion connecting the wing portions. First raceway grooves are formed on the wing portions, individually. Second raceway grooves are formed on the second slide member. Rolling elements are held under a pre-load between the raceway grooves. A residual compression stress region is created on the surface region of the first slide member. A worked portion is formed on the connecting portion. The worked portion serves to adjust the pre-load on the rolling elements by regulating the residual compression stress region by working to deform the connecting portion.

Abstract: A rolling guide apparatus comprises a first slide member and second slide member. The first slide member includes a pair of wing portions and a connecting portion connecting the wing portions. First raceway grooves are formed on the wing portions, individually. Second raceway grooves are formed on the second slide member. Rolling elements are held under a pre-load between the raceway grooves. A residual compression stress region is created on the surface region of the first slide member. A worked portion is formed on the connecting portion. The worked portion serves to adjust the pre-load on the rolling elements by regulating the residual compression stress region by working to deform the connecting portion.

Abstract: An electron beam length-measurement apparatus includes: an electron gun emitting the electron beam; a deflecting unit deflecting the electron beam; a detector operable to detect electrons scattered by the electron beam; a reference-substrate holding unit on which a reference substrate including a reference portion of a reference length it placed; an object holding unit on which the object can be placed; a calibration scanning controller controlling the deflecting unit; a relationship detecting unit detecting a time period of irradiation of the reference portion with the electron beam, and for detecting a relationship between a time period and length of scanning; a length-measurement scanning controller controlling the deflecting unit; and a measurement unit detecting a time period of irradiation of the predetermined portion of the object with the electron beam, and detecting a length corresponding to the detected time period of the irradiation of the object.

Abstract: A computation error of band-by-band bit allocation between an encoder and a decoder is prevented. On the encoder side, an input LSP coefficient is quantized by a quantization device, and a quantized output is output. In a codebook referring section, the look up of a codebook in which computation results are prestored is performed by using an LSP index of the first stage, and band-by-band bit allocation information is created. LSP indexes for each quantization stage are supplied to a decoder side. On the decoder side, the look up of the codebook is performed using the LSP index, and dequantization is performed on the basis of the created band-by-band bit allocation information.

Abstract: An image detection method for detecting a target image from an image of an object having a band-like pattern extending along a predetermined direction, the target image containing at least part of the band-like pattern, the method includes: storing at least part of the image of the object as image data; detecting a first partial image from the stored image data based on a first template containing a first band-like template pattern that extends along the predetermined direction, the first partial image being an image of a first partial region containing substantially the same pattern as the first band-like template pattern; and detecting a second partial image, as the target image, in a region extending from the first partial region along the predetermined direction based on the target image containing the at least part of the band-like pattern, the second partial image being an image of a second partial region containing substantially the same pattern as that of the target image.

Abstract: An apparatus and a method for encoding an input signal on the time base through orthogonal transform involves removing the correlation of signal waveform based on parameters obtained by linear predictive coding (LPC) analysis and pitch analysis of the input signal on the time base prior to the orthogonal transform. A normalization circuit section removes the correlation of the signal waveform and takes out the residue by an LPC inverse filter and pitch inverse filter and sends the residue to an orthogonal transform circuit section. The LPC parameters and the pitch parameters are sent to a bit allocation calculation circuit. A coefficient quantization section quantizes the coefficients from the orthogonal transform circuit section according to the number of allocated bits from the bit allocation calculation section.

Abstract: An audio signal processing method for repairing an anomalous state such as noise, a discontinuity, and a break of sound, comprising detecting the anomalous state of an audio signal, deleting the audio signal in the anomalous segment, deducing the correct audio signal by referring to the waveform of the audio signal before and after the deleted segment, generating a repair signal for repairing the signal in the deleted segment based on the deduced result, inserting the repair signal into the deleted segment, and connecting it to the audio signal before and after the deleted segment.

Abstract: A disk array system has a disk storage group, an array controller reading/writing data of the group, a disk interface connecting unit having a plurality of ports for connection with the controller and the group, and a disk interface connection changing unit. In an array configuration information memory, information indicating a relation between the controller and the group is stored. An array configuration changing portion changes the array configuration information in response to a user's request. A connection changing interface informs the changing unit of a connection change based on the changed array configuration information. The changing unit sends instruction information on setting up the connection status among the ports to the connecting unit to establish the configuration indicated by the array configuration information. The connecting unit changes the port connection according to the instruction information sent from the changing unit.

Abstract: An apparatus and method for performing transform encoding, in which time domain samples can overlap one another by any desired percentage and can be added so that signals may be reproduced completely. In the apparatus and method, the linear/nonlinear prediction analysis section 3 receives an audio signal from the input terminal 2 and effectuates linear or nonlinear prediction on the audio signal, generating a prediction residual. The constancy inferring section 7 infers the constancy of the audio signal. The block-length determining section 8 determines the length of an MDCT block from the constancy of the input signal, which the section 7 has inferred. The MDCT section 5 receives M time domain samples supplied from the buffer 4 and having the prediction residual. The MDCT section 5 applies the block length determined by the section 8, performing MDCT transform on the time domain samples, thus generating MDCT coefficients. The quantization section 6 quantizes the MDCT coefficients.

Abstract: First, at step Si, i=0 is set. At step S2, data comprising M samples is fetched. At step S3, an M-point DFT is applied to the data fetched at step S2 above. At step S4, an obtained y(k) is multiplied by a twist coefficient w(i, k). The result is placed in y(k). At step S5, the value in y(k) is overwritten to an array x which contains original data. The above processing is repeated N/M times through steps S6 and S7 until all the input data is processed. At step S9, an FFT with N/M (=2n) points is performed within the range of 0≦k<M. Finally, at step S12, a sort is performed.

Abstract: An apparatus and a method for encoding an input signal on the time base through orthogonal transform involves removing the correlation of signal waveform on the basis of the parameters obtained by means of linear predictive coding (LPC) analysis and pitch analysis of the input signal on the time base prior to the orthogonal transform. The time base input signal from input terminal is sent to a normalization circuit section and a LPC analysis circuit. The normalization circuit section removes the correlation of the signal waveform and takes out the residue by an LPC inverse filter and pitch inverse filter and sends the residue to an orthogonal transform circuit section. The LPC parameters from the LPC analysis circuit and the pitch parameters from the pitch analysis circuit are sent to a bit allocation calculation circuit.

Abstract: An apparatus and a method for encoding an input signal on the time base through orthogonal transform, comprising a step of removing the correlation of signal waveform on the basis of the parameters obtained by means of linear predictive coding (LPC) analysis and pitch analysis of the input signal on the time base prior to the orthogonal transform. The time base input signal from input terminal 10 is sent to normalization circuit section 11 and (LPC) analysis circuit 39. The normalization circuit section 11 removes the correlation of the signal waveform and takes out the residue by means of LPC inverse filter 12 and pitch inverse filter 13 and sends the residue to orthogonal transform circuit section 25. The LPC parameters from the lop analysis circuit 39 and the pitch parameters from the pitch analysis circuit 15 are sent to bit allocation calculation circuit 41.

Abstract: An apparatus and a method for encoding an input signal on the time base through orthogonal transform, comprising a step of removing the correlation of signal waveform on the basis of the parameters obtained by means of linear predictive coding (LPC) analysis and pitch analysis of the input signal on the time base prior to the orthogonal transform. The time base input signal from input terminal 10 is sent to normalization circuit section 11 and (LPC) analysis circuit 39. The normalization circuit section 11 removes the correlation of the signal waveform and takes out the residue by means of LPC inverse filter 12 and pitch inverse filter 13 and sends the residue to orthogonal transform circuit section 25. The LPC parameters from the lop analysis circuit 39 and the pitch parameters from the pitch analysis circuit 15 are sent to bit allocation calculation circuit 41.

Abstract: A rolling guide apparatus comprises a first slide member and second slide member. The first slide member includes a pair of wing portions and a connecting portion connecting the wing portions. First raceway grooves are formed on the wing portions, individually. Second raceway grooves are formed on the second slide member. Rolling elements are held under a pre-load between the raceway grooves. A residual compression stress region is created on the surface region of the first slide member. A worked portion is formed on the connecting portion. The worked portion serves to adjust the pre-load on the rolling elements by regulating the residual compression stress region by working to deform the connecting portion.

Abstract: An audio signal processing apparatus and method using pitch information to change a length of predictive residual signals while maintaining continuity and thereby enabling conversion of a reproduction speed without changing a pitch and enabling a conversion of speed by a small amount of calculation, comprising shortening or extending residual signals on a time axis while maintaining pitch information, cutting out signals and connecting of different pitch sections in the respective frames based on resemblance of signals at the time of shortening, and extending predictive residual signals in respective frames by extrapolation at the time of extension. An audio signal compressed or expanded on the time axis can be reproduced without changing the pitch by synthesizing an audio signal by an LPC synthesis filter based on the generated new predictive residual signals.

Abstract: A pitch detection method and apparatus capable of realizing high-precision pitch detection even for speech signals in which half-pitch or double-pitch exhibits stronger autocorrelation than the pitch for detection. An input speech signal is judged as to voicedness or unvoicedness and a voiced portion and an unvoiced portion of the input speech signal are encoded by a sinusoidal analytic encoding unit 114 and by a code excitation encoding unit 120, respectively, for producing respective encoded outputs. The sinusoidal analytic encoding unit 114 performs pitch search on the encoded outputs for finding the pitch information from the input speech signal and sets the high-reliability pitch information based on the detected pitch information. The results of pitch detection are determined based on the high-reliability pitch information.