公开(公告)号：US20120227701A1

公开(公告)日：2012-09-13

申请号：US13474051

申请日：2012-05-17

Applicant: Kazuya IWATA ,  Seiichi Sue

Inventor： Kazuya IWATA ,  Seiichi Sue

IPC: F02F3/00

CPC classification number: F02F3/00 ,  F02F3/02

Abstract: An internal combustion engine piston includes a piston crown, a thrust-side skirt, an anti-thrust-side skirt, a first apron, and a second apron. The first and second aprons are connected to the thrust-side and anti-thrust-side skirts through connecting sections. Each connecting section has a thickness that gradually increases as followed from a proximal longitudinal end to a distal longitudinal end, wherein the proximal longitudinal end is closer to the piston crown, and the distal longitudinal end is closer to a distal longitudinal end of a corresponding one of the thrust-side and anti-thrust-side skirts.

Abstract translation: 内燃机活塞包括活塞冠，推力侧裙，防推侧裙，第一围裙和第二围裙。 第一和第二围裙通过连接部分与推力侧和反推力侧裙连接。 每个连接部分具有从近侧纵向端到远侧纵向端部逐渐增加的厚度，其中近侧纵向端部更靠近活塞顶部，并且远端纵向端部更靠近相应一端的纵向端部 的推力侧和反推力侧裙。

公开(公告)号：US20100063824A1

公开(公告)日：2010-03-11

申请号：US11916782

申请日：2006-05-12

Applicant: Kazuya IWATA

Inventor： Kazuya IWATA

IPC: G10L19/00

CPC classification number: G10L21/038 ,  G10H1/12 ,  G10H3/187 ,  G10H2210/311 ,  G10H2250/211

Abstract: An audio signal band expanding apparatus (100a) includes a harmonic generator (3) that receives an input audio signal having a predetermined band and generates, based on the input audio signal, harmonic signals, and an adder (2) that adds the harmonic signals generated by the harmonic generator (3) to the input audio signal. The harmonic generator (3) simulates the input-output characteristics of a predetermined amplifier or that of a device to generate the harmonic signals from the input audio signal.

Abstract translation: 音频信号带扩展装置（100a）包括：谐波发生器（3），其接收具有预定频带的输入音频信号，并且基于所输入的音频信号生成谐波信号;以及加法器（2），其将谐波信号 由谐波发生器（3）产生到输入音频信号。 谐波发生器（3）模拟预定放大器或从输入音频信号产生谐波信号的装置的输入输出特性。

公开(公告)号：US20110144781A1

公开(公告)日：2011-06-16

申请号：US12894823

申请日：2010-09-30

Applicant: Kazuya IWATA

Inventor： Kazuya IWATA

IPC: G06F17/00

CPC classification number: H03M7/302

Abstract: Audio signal processing apparatus includes: an amplitude change extractor 3 which obtains an amplitude change extraction signal which is a signal having an amplitude changing at a fixed quantization width when an amplitude of an input signal temporally changes; a first requantizer 2 which extends, from a first bit count to a second bit count, a bit count representing the amplitude change extraction signal obtained; a second requantizer 5 which smoothes the amplitude change extraction signal by requantizing using a second quantization width less than a first quantization width used on the input signal; a difference signal generator which obtains a difference signal which is a signal represented using the second bit count and obtained by subtracting the amplitude change extraction signal from the input signal; and an adder 6 which generates an output signal by adding a second requantized signal which is the amplitude change extraction signal smoothed by the second requantizer 5 and the difference signal obtained by the difference signal generator 4.

Abstract translation: 音频信号处理装置包括：振幅改变提取器3，其在输入信号的幅度随时间变化时获得振幅变化提取信号，该振幅改变提取信号是具有以固定的量化宽度变化的幅度的信号; 第一再量化器2，其从第一位计数扩展到第二位计数，表示所获得的幅度变化提取信号的位数; 第二再量化器5，其通过使用小于在输入信号上使用的第一量化宽度的第二量化宽度进行再量化来平滑振幅改变提取信号; 差分信号发生器，其获得作为使用第二位计数表示的信号的差分信号，并通过从输入信号中减去振幅改变提取信号获得; 以及加法器6，其通过将作为由第二再量化器5平滑的幅度改变提取信号的第二再量化信号和由差分信号发生器4获得的差分信号相加来生成输出信号。