公开(公告)号：US06785465B1

公开(公告)日：2004-08-31

申请号：US09485881

申请日：2000-05-04

申请人： Toshiharu Koshino ,  Toshiki Yamamura ,  Yuji Nagaishi ,  Tsukasa Yoshiura ,  Yasushi Ayaki

发明人： Toshiharu Koshino ,  Toshiki Yamamura ,  Yuji Nagaishi ,  Tsukasa Yoshiura ,  Yasushi Ayaki

IPC分类号： H04N989

CPC分类号： H04L12/40117 ,  H04N5/781 ,  H04N5/926

摘要： The disk apparatus and the audiovisual data processing apparatus in accordance with the present invention are apparatuses having a stream data processing function and virtually provided with each command processing function for digital VCRs so as to be capable of meeting various processing requests from external apparatuses; and they are configured so that the audiovisual frame boundaries of audiovisual data are detected, so that audiovisual data received externally and continuously is divided in audiovisual frame units in accordance with the detected audiovisual frame boundaries, and so that the data divided in audiovisual frame units is controlled so as to be stored on a disk medium. Furthermore, the audiovisual control method in accordance with the present invention is configured to carry out control so that the audiovisual frame boundaries of audiovisual data are detected, and so that audiovisual data received externally and continuously is divided in audiovisual frame units in accordance with the detected audiovisual frame boundaries.

摘要翻译： 根据本发明的盘装置和视听数据处理装置是具有流数据处理功能的装置，并且虚拟地提供了数字VCR的每个命令处理功能，以便能够满足来自外部装置的各种处理请求; 它们被配置为使得视听数据的视听帧边界被检测，从而根据检测到的图像声音帧边界将外部连续地接收到的视听数据划分成视听帧单元，并且以视听帧单位划分的数据为 控制以便存储在盘介质上。此外，根据本发明的视听控制方法被配置为执行控制，使得检测到视听数据的视听帧边界，并且使得外部连续地接收到的视听数据 根据检测到的视听帧边界划分为视听帧单元。

公开(公告)号：US06714717B1

公开(公告)日：2004-03-30

申请号：US09523884

申请日：2000-03-13

申请人： Virgil L. Lowe ,  John W. Curtis

发明人： Virgil L. Lowe ,  John W. Curtis

IPC分类号： H04N989

CPC分类号： H04N9/896

摘要： A time base corrector apparatus for removing time base errors from video signals. A voltage-controlled oscillator (VCXO) is locked to the chroma burst of the input signal. The VCXO is used to digitize the input video, to comb filter and to demodulate chroma signals. Time base correction is accomplished by lengthening or shortening each video line in sub-pixel increments by using an interpolator circuit to interpolate consecutive pixels. A sync error detector circuit determines the sync threshold position to sub-pixel accuracy. Sync error process logic circuit determines the integrated line length and line to line error. A coefficient generator determines the coefficients necessary to correct this error for every pixel. The interpolator then uses a polynomial interpolation technique. The interpolator compensates for too few pixels per line by compressing the stretched pixels to the proper size and by creating new pixels from a portion of the pixels immediately before and after the created pixel. Interpolator compensates for too many pixels per line by incorporating the values of the input pixels into the proper number of pixels by an interpolation technique. The pixel values are decimated and written to a write buffer.

摘要翻译： 一种用于从视频信号中去除时基误差的时基校正装置。 压控振荡器（VCXO）被锁定到输入信号的色度脉冲串。 VCXO用于数字化输入视频，梳状滤波器和解调色度信号。 通过使用内插器电路来插入连续的像素，以子像素增量来延长或缩短每个视频行来实现时基校正。 同步误差检测器电路将同步阈值位置确定为子像素精度。 同步误差过程逻辑电路确定集成线路长度和线对线误差。 系数发生器确定每个像素校正该误差所需的系数。 然后，插值器使用多项式插值技术。 内插器通过将拉伸的像素压缩到适当的大小并且通过在创建的像素之前和之后的一部分像素创建新像素来补偿每行的像素太少。 内插器通过内插技术将输入像素的值合并到适当数量的像素中来补偿每行太多像素。 像素值被抽取并写入写入缓冲器。