专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06801573B2 Method for dynamic 3D wavelet transform for video compression 有权
标题翻译：用于视频压缩的动态3D小波变换方法
公开(公告)号：US06801573B2
公开(公告)日：2004-10-05
申请号：US09746334
申请日：2000-12-21
申请人： Yuan F. Zheng
发明人： Yuan F. Zheng
IPC分类号： H04N166
CPC分类号： H04N19/1883 , H04N19/114 , H04N19/14 , H04N19/62 , H04N19/63
摘要： A dynamic 3D wavelet transform system and method for compressing video including color or black and white signal. The method applies a so-called packed integer wavelet transform to individual video frames to generate wavelet coefficients in the spatial domain (x and y directions). The generated wavelet coefficients are compared to determine if a new frame is similar in content with the previous frame. All the similar frames are grouped together for performing the wavelet transform in the temporal domain (t direction). A frame with different content will start a new group until another different frame is reached. The comparison is based on the information of the Low-Low (LL) band in the output of the wavelet transform of each frame instead of the entire frame. The coefficients generated by the wavelet transform in the spatial domain are quantized before the wavelet transform in the temporal domain is applied to them The methods allow a hybrid 2D and 3D compression. The 2D wavelet transform is first performed on each frame to obtain the LL, LH, HL, and HH bands. The wavelet transform is further applied in the temporal domain in the LL band only. Compression is achieved based on the 2D wavelet transform in the LH, HL, and HH bands, and 3D wavelet transform in the LL band. Using the LL band reduces the operation space and computation time for the wavelet transform while still achieving a high compression ratio because the wavelet coefficients in the LH, HL, and HH bands are sparse.
摘要翻译：一种用于压缩视频的动态3D小波变换系统和方法，包括彩色或黑白信号。该方法将所谓的压缩整数小波变换应用于各个视频帧，以在空间域（x和y方向）上产生小波系数。比较所生成的小波系数，以确定新帧与前一帧的内容是否相似。所有相似的帧被分组在一起，以在时域（t方向）上进行小波变换。具有不同内容的帧将启动一个新组，直到达到另一个不同的帧。该比较基于每帧的小波变换的输出中的低 - 低（LL）频带的信息，而不是整个帧。在空间域中的小波变换产生的系数在时域的小波变换应用于它们之前被量化。这些方法允许混合2D和3D压缩。首先在每个帧上执行2D小波变换，以获得LL，LH，HL和HH频带。小波变换进一步应用于LL频带的时域。基于LH，HL和HH频带中的2D小波变换和LL频带中的3D小波变换实现压缩。由于LH，HL和HH频带中的小波系数稀疏，所以使用LL频带减小了小波变换的操作空间和计算时间，同时仍然实现了高压缩比。

2. 发明申请

US20170059025A1 CIRCULAR WAVE DRIVE 审中-公开
标题翻译：圆形波驱动
公开(公告)号：US20170059025A1
公开(公告)日：2017-03-02
申请号：US15351339
申请日：2016-11-14
申请人： Yuan F. Zheng
发明人： Yuan F. Zheng
IPC分类号： F16H49/00
CPC分类号： F16H49/001 , F16H2049/006 , Y10T74/19
摘要： A circular wave drive system, and a method for use of a circular wave drive, are provided. In one embodiment, a circular wave drive is provided, the circular wave drive comprising: a substantially enclosed housing having a chamber therein, a ring-shaped wheel residing in the chamber, a wave generator having a wheel-driving portion that is oriented within the hollow central portion of the ring-shaped wheel; and an output element having a wheel-driven portion that is oriented within the hollow central portion of the ring-shaped wheel opposite the wheel-driving portion of the wave generator.
摘要翻译：提供了一种圆波驱动系统和一种使用圆波驱动的方法。在一个实施例中，提供了一种圆波驱动器，该圆波驱动器包括：基本上封闭的壳体，其中具有腔室，驻留在该腔室中的环形轮;波发生器，具有轮驱动部分，环形轮的中空部分; 以及具有轮驱动部分的输出元件，所述轮驱动部分定向在与所述波发生器的轮驱动部分相对的所述环形轮的中空中心部分内。

3. 发明授权

US09494224B2 Circular wave drive 有权
标题翻译：圆波驱动
公开(公告)号：US09494224B2
公开(公告)日：2016-11-15
申请号：US14726452
申请日：2015-05-29
申请人： Yuan F. Zheng
发明人： Yuan F. Zheng
IPC分类号： F16H3/70 , F16H49/00
CPC分类号： F16H49/001 , F16H2049/006 , Y10T74/19
摘要： A circular wave drive system, and a method for use of a circular wave drive, are provided. In one embodiment, a circular wave drive is provided, the circular wave drive comprising: a substantially enclosed housing having a chamber therein, a ring-shaped wheel residing in the chamber, a wave generator having a wheel-driving portion that is oriented within the hollow central portion of the ring-shaped wheel; and an output element having a wheel-driven portion that is oriented within the hollow central portion of the ring-shaped wheel opposite the wheel-driving portion of the wave generator.
摘要翻译：提供了一种圆波驱动系统和一种使用圆波驱动的方法。在一个实施例中，提供了一种圆波驱动器，该圆波驱动器包括：基本上封闭的壳体，其中具有腔室，驻留在该腔室中的环形轮;波发生器，具有轮驱动部分，环形轮的中空部分; 以及具有轮驱动部分的输出元件，所述轮驱动部分定向在与所述波发生器的轮驱动部分相对的所述环形轮的中空中心部分内。

4. 发明申请

US20150345608A1 CIRCULAR WAVE DRIVE 有权
标题翻译：圆形波驱动
公开(公告)号：US20150345608A1
公开(公告)日：2015-12-03
申请号：US14726452
申请日：2015-05-29
申请人： Yuan F. Zheng
发明人： Yuan F. Zheng
IPC分类号： F16H49/00
CPC分类号： F16H49/001 , F16H2049/006 , Y10T74/19
摘要： A circular wave drive system, and a method for use of a circular wave drive, are provided. In one embodiment, a circular wave drive is provided, the circular wave drive comprising: a substantially enclosed housing having a chamber therein, a ring-shaped wheel residing in the chamber, a wave generator having a wheel-driving portion that is oriented within the hollow central portion of the ring-shaped wheel; and an output element having a wheel-driven portion that is oriented within the hollow central portion of the ring-shaped wheel opposite the wheel-driving portion of the wave generator.
摘要翻译：提供了一种圆波驱动系统和一种使用圆波驱动的方法。在一个实施例中，提供了一种圆波驱动器，该圆波驱动器包括：基本上封闭的壳体，其中具有腔室，驻留在该腔室中的环形轮;波发生器，具有轮驱动部分，环形轮的中空部分; 以及具有轮驱动部分的输出元件，该轮驱动部分定向在环形轮的与波发生器的车轮驱动部分相对的中空中心部分内。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式