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1. 发明授权

US07868803B2 Semiconductor device having ΔΣ modulator, and semiconductor system 有权
标题翻译：具有＆Dgr＆amp; 调制器和半导体系统
公开(公告)号：US07868803B2
公开(公告)日：2011-01-11
申请号：US12445357
申请日：2007-10-11
申请人： Shiho Muraki , Naoya Iguchi , Kouichi Nagano , Kazuo Matsukawa , Masao Takayama
发明人： Shiho Muraki , Naoya Iguchi , Kouichi Nagano , Kazuo Matsukawa , Masao Takayama
IPC分类号： H03M3/00
CPC分类号： H03M3/364 , H03M3/424 , H03M3/454
摘要： A semiconductor device comprises an overflow detection circuit (5) which compares an output of at least one integrator in a ΔΣ modulator (13) with a predetermined value to output an overflow detection signal; an overflow frequency calculation circuit (6) which calculates an overflow frequency value that is the frequency of the output from the integrator being outside a normal range, based on the overflow detection signal, and outputs the overflow frequency value; an oscillation judgment circuit (7) which judges whether the ΔΣ modulator (13) is in the oscillation state or not based on the overflow frequency value; and an oscillation halt circuit which suppresses oscillation of the ΔΣ modulator (13) when the oscillation judgment circuit (7) judges that the ΔΣ modulator is in the oscillation state; wherein it is determined whether the output of the integrator is temporarily outside the normal range due to noise or the like or the output of the integrator is outside the normal range due to oscillation, by obtaining the frequency with which the output of the integrator is outside the normal range, and the oscillation of the ΔΣ modulator (13) is suppressed only when it is oscillated.
摘要翻译：一种半导体器件包括一个溢出检测电路（5），它将至少一个积分器的输出与“ 调制器（13）具有预定值以输出溢出检测信号; 溢出频率计算电路（6），根据上述溢出检测信号，计算作为正常范围以外的积分器的输出频率的溢出频率值，并输出溢出频率值; 振荡判断电路（7），判断“ 调制器（13）基于溢出频率值处于振荡状态; 以及抑制“Dgr”的振荡的振荡停止电路。调制器（13）当振荡判断电路（7）判断为＆Dgr＆调制器处于振荡状态; 其中，通过获得积分器的输出外部的频率，确定积分器的输出是否由于噪声等而暂时超出正常范围，或积分器的输出由于振荡而在正常范围之外正常范围和振荡的＆Dgr＆调制器（13）只有在振荡时被抑制。

2. 发明申请

US20100085228A1 SEMICONDUCTOR DEVICE HAVING AE MODULATOR, AND SEMICONDUCTOR SYSTEM 有权
标题翻译：具有AE调制器的半导体器件和半导体系统
公开(公告)号：US20100085228A1
公开(公告)日：2010-04-08
申请号：US12445357
申请日：2007-10-11
申请人： Shiho Muraki , Naoya Iguchi , Kouichi Nagano , Kazuo Matsukawa , Masao Takayama
发明人： Shiho Muraki , Naoya Iguchi , Kouichi Nagano , Kazuo Matsukawa , Masao Takayama
IPC分类号： H03M3/00
CPC分类号： H03M3/364 , H03M3/424 , H03M3/454
摘要： A semiconductor device comprises an overflow detection circuit (5) which compares an output of at least one integrator in a ΔΣ modulator (13) with a predetermined value to output an overflow detection signal; an overflow frequency calculation circuit (6) which calculates an overflow frequency value that is the frequency of the output from the integrator being outside a normal range, based on the overflow detection signal, and outputs the overflow frequency value; an oscillation judgment circuit (7) which judges whether the ΔΣ modulator (13) is in the oscillation state or not based on the overflow frequency value; and an oscillation halt circuit which suppresses oscillation of the ΔΣ modulator (13) when the oscillation judgment circuit (7) judges that the ΔΣ modulator is in the oscillation state; wherein it is determined whether the output of the integrator is temporarily outside the normal range due to noise or the like or the output of the integrator is outside the normal range due to oscillation, by obtaining the frequency with which the output of the integrator is outside the normal range, and the oscillation of the ΔΣ modulator (13) is suppressed only when it is oscillated.
摘要翻译：一种半导体器件包括一个溢出检测电路（5），它将至少一个积分器的输出与“ 调制器（13）具有预定值以输出溢出检测信号; 溢出频率计算电路（6），根据上述溢出检测信号，计算作为正常范围以外的积分器的输出频率的溢出频率值，并输出溢出频率值; 振荡判断电路（7），判断“ 调制器（13）基于溢出频率值处于振荡状态; 以及抑制“Dgr”的振荡的振荡停止电路。调制器（13）当振荡判断电路（7）判断为＆Dgr＆调制器处于振荡状态; 其中，通过获得积分器的输出外部的频率，确定积分器的输出是否由于噪声等而暂时超出正常范围，或积分器的输出由于振荡而在正常范围之外正常范围和振荡的＆Dgr＆调制器（13）只有在振荡时被抑制。

3. 发明申请

US20050213380A1 Multiple power source-semiconductor integrated circuit 审中-公开
标题翻译：多电源半导体集成电路
公开(公告)号：US20050213380A1
公开(公告)日：2005-09-29
申请号：US10509937
申请日：2003-04-04
申请人： Kazuya Taniguchi , Naoya Iguchi , Yasuhito Soma , Hisato Hayakawa
发明人： Kazuya Taniguchi , Naoya Iguchi , Yasuhito Soma , Hisato Hayakawa
IPC分类号： G06F1/26 , G06F1/32 , G11C11/34 , G11C16/04
CPC分类号： G06F1/3209 , G06F1/263 , G06F1/3203 , G06F1/3287 , Y02D10/171
摘要： In a multiple power source semiconductor integrated circuit that is manufactured using a process which generates a large leakage current, supply of power to a function block that is not being used is stopped to reduce unnecessary power consumption. A multiple power source semiconductor integrated circuit (1) includes first to fourth function blocks (11) to (14) that are supplied with power from first to fourth power supply circuits (3) to (6), respectively, and a power supply control circuit (40) that controls supply of power by the first to fourth power supply circuits (3) to (6) under the control of a microcomputer as the first function block (11). The power supply control circuit (40) halts the supply of power to the first to fourth function blocks (11) to (14) when receiving prescribed data from the first function block (11), and restarts the supply of power when receiving a first or second interrupt signal (55) or (56) from outside.
摘要翻译：在使用产生大泄漏电流的处理制造的多电源半导体集成电路中，停止向未使用的功能块的电力供给，以减少不必要的功耗。多电源半导体集成电路（1）包括从第一至第四电源电路（3）至（6）分别供电的第一功能块（11）至第四功能块（14），以及电源控制电路（40），其在微型计算机的控制下控制第一至第四电源电路（3）至（6）的电力供应作为第一功能块（11）。当从第一功能块（11）接收到规定数据时，电源控制电路（40）停止向第一至第四功能块（11）至（14）的电力供应，并且当接收到第一功能块或第二中断信号（55）或（56）。

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