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。

公开(公告)号：US20010035912A1

公开(公告)日：2001-11-01

申请号：US09848582

申请日：2001-05-02

Applicant: Pixel Instruments Corp.

Inventor： J. Carl Cooper ,  Howard Loveless ,  David Wallen ,  Mirko Vojnovic

IPC: H04N009/475

CPC classification number: H04N5/0736 ,  H04N9/475

Abstract: This invention is an apparatus and method for processing television signals and in particular high quality video type signals in analog or digital form. The preferred embodiments utilizes digital storage along with oversampling, interpolation and various filtering in recursive and nonrecursive form to provide fixed or variably delayed output video signals wherein the artifacts and distortion of the video is kept to low levels.

Abstract translation: 本发明是用于处理电视信号，特别是模拟或数字形式的高质量视频类型信号的装置和方法。 优选实施例利用数字存储以及递归和非递归形式的过采样，内插和各种滤波，以提供固定或可变延迟的输出视频信号，其中视频的伪像和失真保持在低电平。

公开(公告)号：US20030007093A1

公开(公告)日：2003-01-09

申请号：US10205648

申请日：2002-07-24

Applicant: Pixel Instruments Corp.

Inventor： J. Carl Cooper ,  Howard Loveless ,  David Wallen ,  Mirko Vojnovic

IPC: H04N005/04

CPC classification number: H04N5/0736 ,  H04N9/475

Abstract: This invention is an apparatus and method for digital processing of television like signals and in particular the use of oversampling and interpolation to achieve improved resolution of the digital version of such signals as compared to a digital version obtained by the use of simple A/D conversion or processing at the desired sample rate. The preferred embodiment utilizes oversampling, interpolation and various filtering in recursive and nonrecursive form to provide output video signals wherein the artifacts and distortion of the video are kept to low levels.

Abstract translation: 本发明是一种用于数字处理电视机信号的装置和方法，特别是使用过采样和内插来实现与通过使用简单的A / D转换获得的数字版本相比，这种信号的数字版本的分辨率得到改善 或以所需的采样率进行处理。 优选实施例利用递归和非递归形式的过采样，内插和各种滤波来提供输出视频信号，其中视频的伪像和失真保持在低电平。