发明名称 |
Digital sine/cosine wave generator |
摘要 |
A digital sine/cosine wave generator generates discrete values representative of either a sine wave or a cosine wave. The digital sine/cosine wave generator generates sine and/or cosine waves by implementing a difference equation of the form y(n)=b*y(n-2)-y(n-1). One of the initial conditions of the difference equation is selected from a series of values generated by a coefficient generator. The frequency of the sine and/or cosine wave generated by the sine/cosine wave generator is dependent on, and may be selected according to, which of the series of values generated by a coefficient generator is chosen as an initial condition of the difference equation.
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申请公布号 |
US6892213(B2) |
申请公布日期 |
2005.05.10 |
申请号 |
US20010813243 |
申请日期 |
2001.03.20 |
申请人 |
SEAGATE TECHNOLOGY LLC |
发明人 |
HUANG TONY CHUN-HUNG;HO HAI THANH |
分类号 |
G06F1/02;G06F1/03;(IPC1-7):G06F7/548 |
主分类号 |
G06F1/02 |
代理机构 |
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