-
公开(公告)号：US07688147B1
公开(公告)日：2010-03-30
申请号：US12268349
申请日：2008-11-10
申请人： D. Robert Hoover
发明人： D. Robert Hoover
IPC分类号： H03F3/04
CPC分类号： H03F3/45475 , H03F3/187 , H03F2200/03 , H03F2203/45138
摘要： A method and system to use floating differential output amplifiers wired in series and parallel to achieve arbitrary output drive voltage and current for the applications load. One embodiment includes the use of multiple differential amplifiers wired in series to generate a high voltage differential amplifier, while only partially using no-feedback buffer amplifiers and obtaining performance equivalent to an implementation that uses only buffer amplifiers. This is achieved by forcing the mismatch errors of conventional amplifiers to become power supply ripple. A second embodiment includes the use of a power supply centering technique to implement a floating asymmetrical differential amplifier. A third embodiment includes the use of multiple floating differential amplifiers, sharing a common power supply with individual biasing and isolation of each section of the amplifier, to allow high power amplifiers to be built with an arbitrary number of low power modules.
摘要翻译： 使用串联和并联布线的浮动差分输出放大器的方法和系统，为应用负载实现任意输出驱动电压和电流。 一个实施例包括使用串联布线的多个差分放大器来产生高压差分放大器，同时仅部分地使用无反馈缓冲放大器并获得与仅使用缓冲放大器的实现相当的性能。 这是通过强制常规放大器的失配误差成为电源纹波来实现的。 第二实施例包括使用电源定心技术来实现浮动非对称差分放大器。 第三实施例包括使用多个浮动差分放大器，共享具有对放大器的每个部分的单独偏置和隔离的公共电源，以允许用任意数量的低功率模块构建高功率放大器。
-
2.发明授权Single chip motion wavelet zero tree codec for image and video compression 失效用于图像和视频压缩的单芯片运动小波零树编解码器公开(公告)号：US06381280B1
公开(公告)日：2002-04-30
申请号：US09087449
申请日：1998-05-29
IPC分类号： H04N712
CPC分类号： H04N19/186 , H04N19/647
摘要： A motion wavelet transform zero tree codec achieves high compression and is implemented in hardware of modest size and at very low cost. A wavelet transform is combined with a tree walk technique for encoding the resulting wavelet coefficients. A 2-6 wavelet transform is used. Wavelet coefficients from the transform are represented in a pyramid of wavelet coefficients. An array of zero trees are formed from the pyramid to hold the wavelet coefficients, one coefficient to each node. Significance values for each node are calculated to assist with the tree walk and encoding. Each zero tree is traversed to produce an output of encoded bits. Encoded bits are output directly during the tree walk.
摘要翻译： 运动小波变换零树编解码器实现了高压缩，并以适中的大小和非常低的成本在硬件中实现。 将小波变换与用于对所得到的小波系数进行编码的树形移动技术相结合。 使用2-6小波变换。 来自变换的小波系数以小波系数的金字塔表示。 从金字塔形成一组零树，以保存小波系数，每个节点有一个系数。 计算每个节点的意义值，以协助树状行走和编码。 遍历每个零树以产生编码比特的输出。 编码位在树木步行期间直接输出。
-
公开(公告)号：US06229929B1
公开(公告)日：2001-05-08
申请号：US09079049
申请日：1998-05-14
IPC分类号： G06T510
CPC分类号： H04N19/649 , H04N19/112 , H04N19/186 , H04N19/62 , H04N19/645
摘要： A technique for compressing video images uses temporary compression of blocks during compression, integrated color rotation of compressed images, direct compression of a composite video signal, and border filters to allow blocks to be compressed independently. Temporary compression reduces storage needed in an integrated circuit. An incoming frame is compressed block-by-block and placed in temporary storage. A corresponding block of a later frame is also compressed. Both blocks are decoded back into the transform domain and the two blocks are compared in the transform domain. Color rotation on compressed color information is integrated with overall compression and is performed upon the chrominance transform pyramids after transformation of the video signal rather than performing a rotation on the raw signal itself. Color rotation is performed at any stage and uses serial multiplication (shift and add) for more efficient processing, rather than using parallel multiplication. A composite video signal including both color and black and white information is compressed directly without separating the color information from the black and white. A sequence of passes separates the luminance and chrominance information from the composite video signal and demodulates the color carrier to separate out color information. Blocks of information are treated independently using a modified 2-6 Biorthogonal filter to reduce complexity, to reduce hardware needed and to reduce blocking artifacts. The technique identifies and compresses composite video, S video, and component video signals, and is applicable to low bit rate video applications.
摘要翻译： 用于压缩视频图像的技术在压缩期间使用块的临时压缩，压缩图像的集成颜色旋转，复合视频信号的直接压缩以及边界滤波器以允许单独压缩块。 临时压缩可减少集成电路中所需的存储空间。 进入的帧被逐块压缩并放置在临时存储器中。 后一帧的相应块也被压缩。 两个块被解码回变换域，并且在变换域中比较两个块。 压缩颜色信息上的色彩旋转与整体压缩进行整合，并且在视频信号变换之后对色度变换金字塔执行，而不是对原始信号本身执行旋转。 颜色旋转在任何阶段执行，并使用串行乘法（移位和加法）进行更有效的处理，而不是使用并行乘法。 直接压缩包括彩色和黑白信息的复合视频信号，而不会将颜色信息与黑白分离。 一系列通过将亮度和色度信息与复合视频信号分离，并解调色载体以分离出颜色信息。 使用修改后的2-6双正交滤波器对信息块进行独立处理，以降低复杂性，减少硬件需求并减少块体伪影。 该技术识别和压缩复合视频，S视频和分量视频信号，适用于低比特率视频应用。
-
公开(公告)号：US06396948B1
公开(公告)日：2002-05-28
申请号：US09079427
申请日：1998-05-14
IPC分类号： G06K900
CPC分类号： H04N19/649 , H04N19/112 , H04N19/186 , H04N19/62 , H04N19/645
摘要： A technique for compressing video images uses temporary compression of blocks during compression, integrated color rotation of compressed images, direct compression of a composite video signal, and border filters to allow blocks to be compressed independently. Temporary compression reduces storage needed in an integrated circuit. An incoming frame is compressed block-by-block and placed in temporary storage. A corresponding block of a later frame is also compressed. Both blocks are decoded back into the transform domain and the two blocks are compared in the transform domain. Color rotation on compressed color information is integrated with overall compression and is performed upon the chrominance transform pyramids after transformation of the video signal rather than performing a rotation on the raw signal itself. Color rotation is performed at any stage and uses serial multiplication (shift and add) for more efficient processing, rather than using parallel multiplication. A composite video signal including both color and black and white information is compressed directly without separating the color information from the black and white. A sequence of passes separates the luminance and chrominance information from the composite video signal and demodulates the color carrier to separate out color information. Blocks of information are treated independently using a modified 2-6 Biorthogonal filter to reduce complexity, to reduce hardware needed and to reduce blocking artifacts. The technique identifies and compresses composite video, S video, and component video signals, and is applicable to low bit rate video applications.
摘要翻译： 用于压缩视频图像的技术在压缩期间使用块的临时压缩，压缩图像的集成颜色旋转，复合视频信号的直接压缩以及边界滤波器以允许单独压缩块。 临时压缩可减少集成电路中所需的存储空间。 进入的帧被逐块压缩并放置在临时存储器中。 后一帧的相应块也被压缩。 两个块被解码回变换域，并且在变换域中比较两个块。 压缩颜色信息上的色彩旋转与整体压缩进行整合，并且在视频信号变换之后对色度变换金字塔执行，而不是对原始信号本身执行旋转。 颜色旋转在任何阶段执行，并使用串行乘法（移位和加法）进行更有效的处理，而不是使用并行乘法。 直接压缩包括彩色和黑白信息的复合视频信号，而不会将颜色信息与黑白分离。 一系列通过将亮度和色度信息与复合视频信号分离，并解调色载体以分离出颜色信息。 使用修改后的2-6双正交滤波器对信息块进行独立处理，以降低复杂性，减少硬件需求并减少块体伪影。 该技术识别和压缩复合视频，S视频和分量视频信号，适用于低比特率视频应用。
-
公开(公告)号：US07130351B1
公开(公告)日：2006-10-31
申请号：US09079101
申请日：1998-05-14
IPC分类号： H04B1/66
CPC分类号： H04N19/645
摘要： Decompressing compressed video information using relatively less temporary storage is disclosed. A compressed bit stream of video information including a compressed portion is received. A reverse combination in the transform domain is performed on the compressed portion to produce two corresponding portions of video information, where the two portions represent the compressed portion in a less compressed form. The two portions of video information are temporarily stored as a reverse combination is being performed. One of said two portions of video information is transformed, decoded, and decompressed to produce a decompressed portion of video information. The decompressed portion of video information is output.
摘要翻译： 公开了使用相对较少的临时存储解压缩压缩视频信息。 接收包括压缩部分的视频信息的压缩比特流。 在压缩部分上执行变换域中的反向组合以产生视频信息的两个对应部分，其中两部分以较不压缩的形式表示压缩部分。 作为反向组合正在执行，视频信息的两部分被临时存储。 视频信息的所述两部分之一被变换，解码和解压缩以产生视频信息的解压缩部分。 输出视频信息的解压缩部分。
-
公开(公告)号：US06516030B1
公开(公告)日：2003-02-04
申请号：US09079104
申请日：1998-05-14
IPC分类号： H04N1102
CPC分类号： H04N19/649 , H04N19/112 , H04N19/186 , H04N19/62 , H04N19/645
摘要： A technique for compressing video images uses temporary compression of blocks during compression, integrated color rotation of compressed images, direct compression of a composite video signal, and border filters to allow blocks to be compressed independently. Temporary compression reduces storage needed in an integrated circuit. An incoming frame is compressed block-by-block and placed in temporary storage. A corresponding block of a later frame is also compressed. Both blocks are decoded back into the transform domain and the two blocks are compared in the transform domain. Color rotation on compressed color information is integrated with overall compression and is performed upon the chrominance transform pyramids after transformation of the video signal rather than performing a rotation on the raw signal itself. Color rotation is performed at any stage and uses serial multiplication (shift and add) for more efficient processing, rather than using parallel multiplication. A composite video signal including both color and black and white information is compressed directly without separating the color information from the black and white. A sequence of passes separates the luminance and chrominance information from the composite video signal and demodulates the color carrier to separate out color information. Blocks of information are treated independently using a modified 2-6 Biorthogonal filter to reduce complexity, to reduce hardware needed and to reduce blocking artifacts. The technique identifies and compresses composite video, S video, and component video signals, and is applicable to low bit rate video applications.
摘要翻译： 用于压缩视频图像的技术在压缩期间使用块的临时压缩，压缩图像的集成颜色旋转，复合视频信号的直接压缩以及边界滤波器以允许单独压缩块。 临时压缩可减少集成电路中所需的存储空间。 进入的帧被逐块压缩并放置在临时存储器中。 后一帧的相应块也被压缩。 两个块被解码回变换域，并且在变换域中比较两个块。 压缩颜色信息上的色彩旋转与整体压缩进行整合，并且在视频信号变换之后对色度变换金字塔执行，而不是对原始信号本身执行旋转。 颜色旋转在任何阶段执行，并使用串行乘法（移位和加法）进行更有效的处理，而不是使用并行乘法。 直接压缩包括彩色和黑白信息的复合视频信号，而不会将颜色信息与黑白分离。 一系列通过将亮度和色度信息与复合视频信号分离，并解调色载体以分离出颜色信息。 使用修改后的2-6双正交滤波器对信息块进行独立处理，以降低复杂性，减少硬件需求并减少块体伪影。 该技术识别和压缩复合视频，S视频和分量视频信号，适用于低比特率视频应用。
-
公开(公告)号：US07449946B1
公开(公告)日：2008-11-11
申请号：US12111056
申请日：2008-04-28
申请人： D. Robert Hoover
发明人： D. Robert Hoover
IPC分类号： H03F1/26
CPC分类号： H03F3/211 , H03F1/3211 , H03F1/3247 , H03F3/301 , H03F3/3069 , H03F3/45376 , H03F3/45381 , H03F3/45475 , H03F2200/03 , H03F2200/45 , H03F2200/541 , H03F2201/3233 , H03F2203/45138 , H03F2203/45392
摘要： A method and system to use voltage isolated and floating differential output amplifiers wired in series and parallel to achieve arbitrary output drive voltage and current for the applications load. Embodiments use multiple voltage-isolated and linearized devices to enable dynamically modifiable, Class A, Class B, and Class AB topologies of predetermined voltage and current performance. Embodiments can correct an output by linearizing one or more devices in a circuit by utilizing a linearization module (e.g., including one or more digital lookup tables, an error simulation circuit, or an equivalent) to linearize at least one parameter of at least one device in the circuit.
摘要翻译： 使用电压隔离和浮动差分输出放大器串联和并联的方法和系统，以实现应用负载的任意输出驱动电压和电流。 实施例使用多个电压隔离和线性化的装置来实现具有预定电压和电流性能的动态可修改的A类，B类和AB类拓扑。 实施例可以通过利用线性化模块（例如，包括一个或多个数字查找表，错误模拟电路或等效物）对电路中的一个或多个设备进行线性化来校正输出，以将至少一个设备的至少一个参数线性化 在电路中。
-
公开(公告)号：US07365605B1
公开(公告)日：2008-04-29
申请号：US11325884
申请日：2006-01-04
申请人： D. Robert Hoover
发明人： D. Robert Hoover
IPC分类号： H03F3/04
CPC分类号： H03F3/211 , H03F1/3211 , H03F1/3247 , H03F3/301 , H03F3/3069 , H03F3/45376 , H03F3/45381 , H03F3/45475 , H03F2200/03 , H03F2200/45 , H03F2200/541 , H03F2201/3233 , H03F2203/45138 , H03F2203/45392
摘要： A method and system to use voltage isolated and floating differential output amplifiers wired in series and parallel to achieve arbitrary output drive voltage and current for the applications load. A second embodiment uses multiple matched voltage-isolated and floating differential output amplifiers in a single chassis to enable selection between a multi-channel amplifier and a high current and/or high voltage mono amplifier. A third embodiment uses a step-up transformer and paralleled unity-gain buffer amplifiers, on input and/or output stages, to produce a zero feedback, high performance, high drive amplifier. A fourth embodiment uses a high voltage unity-gain driver amplifier to bias a unity-gain buffer amplifier and its power supply to achieve an ultra low distortion high voltage buffer amplifier. A fifth embodiment uses multiple voltage-isolated and linearized devices to enable dynamically modifiable, Class A, Class B, and Class AB topologies of predetermined voltage and current performance. A sixth embodiment corrects an output by linearizing one or more devices in a circuit by utilizing a linearization module (e.g., including one or more digital lookup tables, an error simulation circuit, or an equivalent) to linearize at least one parameter of at least one device in the circuit.
摘要翻译： 使用电压隔离和浮动差分输出放大器串联和并联的方法和系统，以实现应用负载的任意输出驱动电压和电流。 第二实施例在单个机箱中使用多个匹配的电压隔离和浮动差分输出放大器以使得能够在多通道放大器和高电流和/或高电压单声道放大器之间进行选择。 第三实施例在输入和/或输出级上使用升压变压器和并联单位增益缓冲放大器来产生零反馈，高性能，高驱动放大器。 第四实施例使用高电压单位增益驱动放大器来偏置单位增益缓冲放大器及其电源，以实现超低失真高电压缓冲放大器。 第五实施例使用多个电压隔离和线性化的装置来实现具有预定电压和电流性能的动态可修改的A类，B类和AB类拓扑。 第六实施例通过利用线性化模块（例如，包括一个或多个数字查找表，错误模拟电路或等效物）对电路中的一个或多个设备进行线性化来校正输出，以将至少一个参数线性化 设备在电路中。
-
公开(公告)号：US4345253A
公开(公告)日：1982-08-17
申请号：US161622
申请日：1980-06-20
申请人： D. Robert Hoover
发明人： D. Robert Hoover
CPC分类号： G01S13/758
摘要： A passive transponder for identifying objects remote to an interrogator includes an oscillator which generates a first frequency signal, a counter which divides the first frequency into a series of lower frequency signals, at least one multiplexer having a series of input terminals selected ones of which may be grounded to provide an identification code, and an encoder connected to the oscillator, the counter, the at least multiplexer, and an antenna for selecting which of the signals from the oscillator, counter, and at least one multiplexer shall be supplied to the antenna.
摘要翻译： 用于识别远离询问器的物体的无源应答器包括产生第一频率信号的振荡器，将第一频率分成一系列较低频率信号的计数器，至少一个多路复用器，其具有选择的一个输入端， 接地以提供识别码，以及连接到振荡器，计数器，至少多路复用器的编码器和用于选择来自振荡器，计数器和至少一个多路复用器的信号中的哪一个应被提供给天线的天线 。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.018 秒)
