公开(公告)号：US20020177996A1

公开(公告)日：2002-11-28

申请号：US10152505

申请日：2002-05-21

Applicant: PIXEL INSTRUMENTS

Inventor： J. Carl Cooper ,  Steve Anderson

IPC: G10L021/00

CPC classification number: H04N21/4331 ,  G10L21/04 ,  G11B20/00007 ,  H04B1/662 ,  H04N5/4401 ,  H04N5/4403 ,  H04N5/76 ,  H04N5/775 ,  H04N5/783 ,  H04N9/8042 ,  H04N21/4126 ,  H04N21/4147 ,  H04N21/42204 ,  H04N21/4316 ,  H04N21/4333 ,  H04N21/47 ,  H04N21/47214 ,  H04N21/482 ,  H04N21/485 ,  H04N2005/441 ,  H04N2005/4428 ,  H04N2005/4439

Abstract: An apparatus and method is disclosed for converting an input signal having frequency related information sustained over a first duration of time into an output signal sustained over a second duration of time at substantially the same first frequency by adding or subtracting to the effective wave length of the output signal. Preferably, the signals are converted in digital form with samples added or subtracted to frequency convert the signal.

Abstract translation: 公开了一种装置和方法，用于将具有在第一持续时间内保持的频率相关信息的输入信号转换成基本上相同的第一频率在第二持续时间内维持的输出信号， 输出信号。 优选地，以加法或减去的样本数字形式转换信号以对信号进行频率转换。