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# Discrete signal processing device and processing method

外国特許コード F110004948 A222-03WO 2011年7月27日 大韓民国 20077002022 20070021328 100883715 平成19年1月26日(2007.1.26) 平成19年2月22日(2007.2.22) 平成21年2月12日(2009.2.12) JP2005013034 WO2006011371 平成19年1月26日(2007.1.26) 平成18年2月2日(2006.2.2) Discrete signal processing device and processing method There are provided a signal processing device and a signal processing method capable of performing smooth signal reproduction in reproducing a discrete signal having a non-uniform sample point interval. The device includes: a coefficient calculation unit (4) for inputting a sample point signal E2 expressing the time of the sample point of the discrete signal E1 having a non-uniform sample point interval and calculating a coefficient of the sampling function corresponding to the discrete signal; and a reproduction signal calculation unit (5) for calculating and outputting a function value within the sample point interval from the discrete signal and the value of the coefficient outputted from the coefficient calculation unit, thereby obtaining a continuous reproduction signal E3. © KIPO & WIPO 2007 [claim1]Chapter 1 in  for non-uniform sampling discrete signal and previous samples of time or location tables to signalling to replaying the sample point within the interval signal by the linear combination of the value to multiply with the size of the signal above the first and second signal and then determined by a second signal sampling function and sought to signal No. 1 of the above product.And the factor part 2 represents the time interval  is a non-uniform sampling point or position signal is input, the sampling function coefficientsSignal processing unit capable of discretized in the above sample points the first signal and signal a continuous operation out the sample point within the interval function value from the above coefficients above coefficient calculation of value and that the playback signal operators and to feature. above play signals operation of the 当te嵌mete polynomial function to output the above coefficient calculation of these coefficients, and calculates the value of the above sample program must function in the sample point within the given time or position, seeking the calculated value of the result and the value of the signal above the first, product obtained in the above sample point interval of given time or, the summation of the position as a signal to output to claim 2, in signal processing equipment.And the factor part 2 represents the time interval  is a non-uniform sampling point or position signal is input, the sampling function coefficientsSignal processing unit capable of discretized in above sample no. 1 and play signals in product operation and value power decided the above coefficients above coefficient calculation of sampling program must function in the calculated sample value above 1 signal by a linear combination of the product calculated value series to get playback signal operators and to feature. above sampling function is continuous on each interval separated 1Z2 every sampling interval of 2 n 2: polynomial function is represented by the expression in the sample point and the sampling interval 1Z2 contact and values in samples from the 2: 1 times differentiable continuous polynomial functions power and values in samples from the other 1 atmosphere in claim 1 characterized that-claim 4 of any one in signal processing equipment.If the signal if signal  above the second signal is above the first signal is expressed in elapsed time, above the first signal is shown using the coordinates represented by the point to claim 1-claim 4 of any one in signal processing equipment. second signal that claim 1 is represented by a time interval between sampling points adjacent to or distance to features-claim 4 of any one in signal processing equipment.Time discrete in non-uniform sampling  the first signal and samples from above or at table to step no. 2 signal type andThe product of the size of the signal value is determined in the second signal sampling function and above the first required step andTo that step to play the sample point within the interval signal by the linear combination of the values calculated above area's no. 1 signal, and the signal processing method.Step no. 2 represents the time interval  a non-uniform sampling point or position signal is input, the sampling function coefficients andThat step get discretized in above sample no. 1 signal with continuous operation out the sample point within the interval function value from the value of the above factors and to play and to signal handling.Step no. 2 represents the time interval  is a non-uniform sampling points or position signal is input, the sampling function coefficients andSteps in the value of the discretized in the above sample points the first signal and the above coefficient values power determined specimen IG function performs bitwise andRe consecutive by a linear combination of the product calculated values in the calculated sample value above 1 signal to that step to get the raw signal and signal processing methods. above sampling function is continuous on each interval separated 1Z2 every sampling interval of 2 n 2: polynomial function is represented by the expression in the sampling point and the sampling interval 1Z2 contact and claim 8 that values in samples from 2: 1 times differentiable continuous polynomial functions, standards and values in samples from the other 1 atmosphere that characterized-claim 10 or one signal processing method of.By function value of the above sample program must function 1Z2 point  sampling interval for a given condition provided is claim 8 to feature-claim 10 or one method of signal processing  above given conditions in the 1Z2 of the sampling interval indicated by symmetry with the sample point above function values of the above sample program must function features shall they claim 12 signal processing method of.To be demonstrated by certain criteria  shall be approximated with an evenly-spaced sampling IG function value with minimum error above function values of above sample program must function in 1Z2 of the sampling interval to claim 12 method of signal processing.And be equipped with signal suitability evaluation to determine the suitability of the signal No. 1  continuous signal is sampled, and get and generating signals representing the samples of the signal above the first time or position, fit the second sample point measuring and signal regeneration was deemed suitable for the above first and second signal and then get the signal andThe above signal playbackSignal processing equipment may enter a second signal, the sampling function coefficients coefficient arithmetic unit, and playback signal operation and continuous operation out the above coefficients above coefficient calculation of output and power sample points in the interval function values that play signals identified above and above one of the first to get to feature.To decide whether  above signal suitability evaluation of the force exceeded the reference value in place of sampling points adjacent to the sample value of the signal above the first signal sample and determine suitability, based on canonical values over the unfit to claim 15 in signal processing equipment.Whether  above signal suitability evaluation of the force exceeds the standards in place to continue it for a signal above the first sample value 1 signal sample and determine suitability, when across the baseline to determine suitable to claim 15 in signal processing equipment.And, equipped with a first step to determine the suitability of 1,  continuous signal is sampled signal and generate a signal suitable for representing samples of the signal above the first time or the position of the second step and step 3 was deemed appropriate for these first and second signals and then get the signal andThe above 3 steps,Step 4 enter the second signal, the sampling program must function coefficients andSignal processing method capable of and get no. 1 above determined above for signal with continuous operation out the sample point within the interval function value from the values of these coefficients and can play the fifth step to feature.Is determining suitability whether force exceeds the reference value of signal sampling points adjacent to it for signals above the first sample value in  above 1 step 1 sample values are given by the claims paragraph 18 that is judged to be inappropriate when exceeding the reference value to the signal processing method of. these first steps, for signals above the first sample value it «continued billing section 18 to be judged for suitability and determine whether or not exceeded standards signal the first sample value is exceeded the reference value when the signal processing method. JAPAN SCIENCE AND TECHNOLOGY AGENCY TORAICHI KAZUO TAKAHASHI TOMOYUKI KAWABE TOHRU KATAGISHI KAZUKI NAKAMURA KOUJI H03M   1/08      雑音によるもの H03M   1/12      アナログ／デジタル変換器 CREST New High-Performance Information Processing Technology Supporting Information-Oriented Society - Aiming at the Creation of New High-Speed, Large-Capacity Computing Technology Based on Quantum Effects, Molecular Functions, Parallel Processing, etc.- AREA
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