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1. 发明授权

US07852408B2 Fractional phase-locked loop for generating high-definition and standard-definition reference clocks 有权
标题翻译：用于生成高清晰度和标准清晰度参考时钟的分数锁相环
公开(公告)号：US07852408B2
公开(公告)日：2010-12-14
申请号：US11383551
申请日：2006-05-16
申请人： Ygal Arbel
发明人： Ygal Arbel
IPC分类号： H04N5/06 , H04N5/46 , H04N9/45 , H04N9/455 , H03L7/85 , H03L7/89 , H03L7/06 , H03L7/26 , H03B1/00
CPC分类号： H03L7/1974 , G09G5/18 , H03L7/23 , H04N5/46 , H04N21/4305
摘要： A programmable fractional phase-locked loop for generating a 148.50000 MHz high-definition television reference clock and a 148.35164 MHz high-definition reference clock from a 27 MHz crystal is disclosed. To generate the 148.50000 MHz reference clock, the fractional phase-locked loop is multiplied by 11/2, and to generate the 148.35164 MHz reference clock, the fractional phase-locked loop is multiplied by 500/91. Inside the fractional-phase locked loop however, the fraction 11/2 is represented by a denominator that is an integral power of 2, and the fraction 500/91 is represented by a denominator that is an integral multiple of 91.
摘要翻译：公开了一种可编程分数锁相环，用于产生一个148.50000 MHz高清电视参考时钟和一个来自27 MHz晶体的148.35164 MHz高清参考时钟。为了产生148.50000 MHz参考时钟，分数锁相环乘以11/2，并产生148.35164 MHz参考时钟，分数锁相环乘以500/91。然而，在分数相锁定环内部，分数11/2由分母为二分之一表示，分数500/91由分母为91的整数倍表示。

2. 发明申请

US20060230052A1 Compact and hitlessly-resizable multi-channel queue 审中-公开
标题翻译：紧凑和无限大小的多渠道队列
公开(公告)号：US20060230052A1
公开(公告)日：2006-10-12
申请号：US11103978
申请日：2005-04-12
申请人： Ygal Arbel
发明人： Ygal Arbel
IPC分类号： G06F7/00
CPC分类号： G06F5/065 , G06F2205/063 , G06F2205/066
摘要： A queue is disclosed (i) that provides for single-channel and multi-channel operation and that can change between single-channel and multi-channel operation during operation hitlessly, (ii) in which the number of channels and each channel's size can be changed during operation hitlessly, and (iii) is compact. To accomplish this, the illustrative embodiment comprises a group of doubly-linked lists, one for each channel's storage. One set of links indicates the node where the next datum is to be written and the other set of links indicates the node where the next datum is to be read. By bifurcating each channel's queue into a set of write links and read links, the illustrative embodiment can resize a channel during operation hitlessly.
摘要翻译：公开了一种队列（i），其提供单通道和多通道操作，并且可以在无效操作期间在单通道和多通道操作之间改变，（ii）其中通道数量和每个通道的尺寸可以是在运行中无效地改变，（iii）是紧凑的。为了实现这一点，说明性实施例包括一组双向链表，每个通道的存储一个。一组链接指示下一个数据要被写入的节点，另一组链接指示要读取下一个数据的节点。通过将每个通道的队列分成一组写入链接和读取链接，所述说明性实施例可以在无效的操作期间调整通道的大小。

3. 发明申请

US20070268405A1 Fractional Phase-Locked Loop for Generating High-Definition and Standard-Definition Reference Clocks 有权
标题翻译：用于生成高清晰度和标准清晰度参考时钟的分数锁相环
公开(公告)号：US20070268405A1
公开(公告)日：2007-11-22
申请号：US11383551
申请日：2006-05-16
申请人： Ygal Arbel
发明人： Ygal Arbel
IPC分类号： H03L7/00 , H03B19/00
CPC分类号： H03L7/1974 , G09G5/18 , H03L7/23 , H04N5/46 , H04N21/4305
摘要： A programmable fractional phase-locked loop for generating a 148.50000 MHz high-definition television reference clock and a 148.35164 MHz high-definition reference clock from a 27 MHz crystal is disclosed. To generate the 148.50000 MHz reference clock, the fractional phase-locked loop is multiplied by 11/2, and to generate the 148.35164 MHz reference clock, the fractional phase-locked loop is multiplied by 500/91. Inside the fractional-phase locked loop however, the fraction 11/2 is represented by a denominator that is an integral power of 2, and the fraction 500/91 is represented by a denominator that is an integral multiple of 91.
摘要翻译：公开了一种可编程分数锁相环，用于产生一个148.50000 MHz高清电视参考时钟和一个来自27 MHz晶体的148.35164 MHz高清参考时钟。为了产生148.50000 MHz参考时钟，分数锁相环乘以11/2，并产生148.35164 MHz参考时钟，分数锁相环乘以500/91。然而，在分数相锁定环内部，分数11/2由分母为二分之一表示，分数500/91由分母为91的整数倍表示。

4. 发明授权

US6002441A Audio/video subprocessor method and structure 失效
标题翻译：音频/视频子处理器的方法和结构
公开(公告)号：US6002441A
公开(公告)日：1999-12-14
申请号：US742583
申请日：1996-10-28
申请人： Hemant Bheda , Ygal Arbel , Partha Srinivasan
发明人： Hemant Bheda , Ygal Arbel , Partha Srinivasan
IPC分类号： H04N7/26 , H04N7/50 , H04N21/2368 , H04N21/4143 , H04N21/434 , H04N7/32
CPC分类号： H04N21/4143 , H04N19/42 , H04N19/61 , H04N21/4341 , H04N21/439 , H04N21/44
摘要： A novel method and apparatus for decoding a compressed audio/video signal to produce decoded audio and decoded video signals. The decoding tasks are partitioned into "pre-processing tasks" and "post-processing tasks." Pre-processing tasks involve one or more non-signal processing oriented operations which do not require extensive computing resources. Pre-processing tasks are assigned to be executed by the host processor, which can perform these tasks without straining it computational resources. Pre-processing tasks include demultiplexing the compressed audio/video stream into compressed audio and compressed video streams, performing audio pre-processing on the compressed audio stream and performing video pre-processing on the compressed video stream. Post-processing tasks involve one or more signal processing oriented operations which require extensive computing resources. Pre-processing tasks are assigned to be executed by a dedicated subprocessor. Post-processing tasks include audio post-processing and video post-processing. In an embodiment, video frame tasks are also performed as part of video post-processing. Post-processing performed by the dedicated subprocessor outputs a decoded audio signal and a decoded video signal.
摘要翻译：一种用于解码压缩音频/视频信号以产生解码音频和解码视频信号的新颖方法和装置。解码任务分为“预处理任务”和“后处理任务”。预处理任务涉及不需要大量计算资源的一个或多个非信号处理导向操作。分配预处理任务将由主机处理器执行，主处理器可以执行这些任务而不使其计算资源变紧。预处理任务包括将压缩音频/视频流解复用为压缩音频和压缩视频流，对压缩音频流执行音频预处理，并在压缩视频流上执行视频预处理。后处理任务涉及需要大量计算资源的一个或多个面向信号处理的操作。分配预处理任务由专用子处理器执行。后处理任务包括音频后处理和视频后处理。在一个实施例中，视频帧任务也作为视频后处理的一部分执行。由专用子处理器执行的后处理输出解码音频信号和解码视频信号。

5. 发明授权

US4912758A Full-duplex digital speakerphone 失效
标题翻译：全双工数字扬声器
公开(公告)号：US4912758A
公开(公告)日：1990-03-27
申请号：US263115
申请日：1988-10-26
申请人： Ygal Arbel
发明人： Ygal Arbel
IPC分类号： H04M1/60 , H04B3/23 , H04M9/08
CPC分类号： H04M9/082
摘要： A full-duplex digital speakerphone 10 includes a transmit signal path having an output coupled to a telephone trunk and a receive signal path having an input coupled to the telephone trunk and an output coupled to a loudspeaker. The speakerphone further includes a room echo cancellation adaptive filter 56 and a trunk echo cancellation adaptive filter 66. Serially coupled within the transmit signal path is a selective suppression block 50 for suppressing a component of a Mu-Law or an A-Law quantization error signal. A second selective suppression block 52 is serially coupled within the receive signal path. Suppression of non-linearities due to Mu-Law or A-Law signal conversion is also accommodated by providing a non-linear signal processing block 40 at an input to an adaptive filter and an optional non-linear signal processing block at an output of the adaptive filter. Each of the blocks emulates and compensates for signal converter non-linearity. The speakerphone facilitates adaptive filter coefficient initialization by beginning a call in a half-duplex mode and switching to full-duplex when filter coefficients are adapted. The speakerphone also has a variable adaptation step size which is a function of a short-term estimate of signal power within the associated transmit or receive signal paths.

6. 发明授权

US06282631B1 Programmable RISC-DSP architecture 有权
标题翻译：可编程RISC-DSP架构
公开(公告)号：US06282631B1
公开(公告)日：2001-08-28
申请号：US09220158
申请日：1998-12-23
申请人： Ygal Arbel
发明人： Ygal Arbel
IPC分类号： G06F1500
CPC分类号： G06F9/30101 , G06F9/30014 , G06F9/30112 , G06F9/3013 , G06F9/30145 , G06F9/34 , G06F9/345 , G06F9/3455 , G06F9/3879 , G06F15/7857
摘要： The present invention provides an audio signal processor and method of operation thereof that enables efficient digital signal processing. Fast multiply-accumulate (MAC) and vector processing capabilities are implemented in a RISC architecture giving the high speed capabilities of a digital signal processing system the speed and efficiency of a RISC processor.
摘要翻译：本发明提供一种能够实现高效数字信号处理的音频信号处理器及其操作方法。快速乘法累加（MAC）和矢量处理能力在RISC架构中实现，为数字信号处理系统的高速能力提供了RISC处理器的速度和效率。

7. 发明授权

US5982935A Method and apparatus for computing MPEG video reconstructed DCT coefficients 失效
标题翻译：用于计算MPEG视频重构DCT系数的方法和装置
公开(公告)号：US5982935A
公开(公告)日：1999-11-09
申请号：US834059
申请日：1997-04-11
申请人： Ygal Arbel
发明人： Ygal Arbel
IPC分类号： G06T9/00 , H04N7/26 , H04N7/30 , G06K9/36 , G06K9/46 , H04N1/415
CPC分类号： H04N19/45 , H04N19/60
摘要： A novel apparatus and method is disclosed to perform discrete cosine transform (DCT) coefficient reconstruction more efficiently and using less hardware resources than prior art techniques. The invention comprises a correction factor generator apparatus which computes a correction factor which is used in the DCT coefficient reconstruction process. Use of the correction factor enables DCT coefficient reconstruction to be performed using lesser computations and lesser hardware resources than prior art techniques. The apparatus and method can be used to perform DCT coefficient reconstruction for both MPEG-1 and MPEG-2 encoded video data streams.
摘要翻译：公开了一种新颖的装置和方法，以更有效地执行离散余弦变换（DCT）系数重建，并且比现有技术使用更少的硬件资源。本发明包括一个校正因子发生器装置，该装置计算在DCT系数重建过程中使用的校正因子。使用校正因子使得能够使用比现有技术更少的计算和较少的硬件资源来执行DCT系数重构。该装置和方法可用于对MPEG-1和MPEG-2编码视频数据流进行DCT系数重构。

8. 发明授权

US5276731A Method and apparatus for handling incoming telephone calls 失效
标题翻译：用于处理来电的方法和装置
公开(公告)号：US5276731A
公开(公告)日：1994-01-04
申请号：US692081
申请日：1991-04-26
申请人： Ygal Arbel , Timothy L. Wilson , Gordon Ford , Cathy Arledge , Tracy L. Rust
发明人： Ygal Arbel , Timothy L. Wilson , Gordon Ford , Cathy Arledge , Tracy L. Rust
IPC分类号： H04M1/663 , H04M3/436 , H04M3/493 , H04M3/53 , H04M3/533 , H04M3/54 , H04Q3/00 , H04Q3/72 , H04M1/66 , H04M3/42 , H04M11/00
CPC分类号： H04M3/53 , H04M1/663 , H04M3/436 , H04M3/533 , H04M3/546 , H04Q3/0029 , H04M2203/2072 , H04M2242/22 , H04M3/42042 , H04M3/42059 , H04M3/42102 , H04M3/493 , H04Q2213/13256 , H04Q2213/13541 , H04Q3/72
摘要： Method and apparatus for handling incoming telephone calls and, in particular: (a) for delivering predetermined messages to predetermined calling parties; (b) predetermined, prioritorized screening of incoming telephone calls; and (c) for re-routing incoming telephone calls on the basis of predetermined selection criteria. The predetermined selection criteria include information such as the calling parties, call origination information, call origination information with wildcards, time, date, or a combination of these factors. Call origination information includes, but is not limited to, Automatic Number Identification ("ANI"), private network tie line identification, trunk ID, Wide Area Telephone Service ("WATS"), and extension numbers.
摘要翻译：用于处理传入电话呼叫的方法和装置，特别是：（a）用于向预定呼叫方发送预定消息; （b）预先对电话进行预先筛选; 和（c）基于预定的选择标准重新路由输入的电话呼叫。预定的选择标准包括诸如主叫方，呼叫发起信息，具有通配符的呼叫发起信息，时间，日期或这些因素的组合的信息。呼叫始发信息包括但不限于自动号码识别（“ANI”），专网连接线路标识，中继线ID，广域电话服务（“WATS”）和分机号码。

9. 发明授权

US4879745A Half-duplex speakerphone 失效
标题翻译：半双工扬声器
公开(公告)号：US4879745A
公开(公告)日：1989-11-07
申请号：US253610
申请日：1988-10-12
申请人： Ygal Arbel
发明人： Ygal Arbel
IPC分类号： H04M1/60 , H04B3/20 , H04M9/08 , H04M9/10
CPC分类号： H04M9/085 , H04B3/20 , H04M9/10
摘要： A half-duplex digital speakerphone includes a control state machine which controls the selection of either a transmit or a receive audio path based upon a present state of the speakerphone and the magnitudes of three signal related variables associated with each path. The three variables for each path includes a signal power variable, a noise power variable and a worst-case echo variable. A change of state of the state machine results in the value of a variable gain within each of the paths being adjusted to optimize the transition time from the receive to the transmit state or from the transmit to the receive state. Also optimized is a change of state from an idle state to a transmit or receive state or from a transmit or receive state to the idle state. A change of state is accomplished in accordance with a smoothly varying, substantially Gaussian switching waveform which is selected to optimize the transition time between states while simultaneously minimizing audible side effects.
摘要翻译：半双工数字扬声器包括控制状态机，其基于扬声器的当前状态和与每个路径相关联的三个信号相关变量的大小控制发送或接收音频路径的选择。每个路径的三个变量包括信号功率变量，噪声功率变量和最坏情况回波变量。状态机的状态改变导致每个路径内的可变增益的值被调整以优化从接收到发送状态或从发送状态到接收状态的转换时间。还优化了状态从空闲状态到发送或接收状态或从发送或接收状态到空闲状态的改变。根据平滑变化的基本高斯切换波形来实现状态改变，该波形被选择为优化状态之间的转换时间，同时最小化可听见的副作用。

10. 发明授权

US07184450B1 System and method for decoding audio/video data such as DVD or/and DVB data 有权
标题翻译：用于解码诸如DVD或/和DVB数据的音频/视频数据的系统和方法
公开(公告)号：US07184450B1
公开(公告)日：2007-02-27
申请号：US09301438
申请日：1999-04-28
申请人： Christopher K. Wolf , Ygal Arbel , Himanshu A. Sanghavi
发明人： Christopher K. Wolf , Ygal Arbel , Himanshu A. Sanghavi
IPC分类号： H04J3/04 , H04L12/28 , H04N5/91 , H04N5/262
CPC分类号： H04N21/434 , G11B20/10 , G11B20/10527 , G11B20/1403 , G11B27/3027 , G11B2020/10685 , G11B2020/10694 , G11B2220/2562 , H04J3/0638 , H04L69/12 , H04N21/23406 , H04N21/2368 , H04N21/42607 , H04N21/4341 , H04N21/44004
摘要： A system (20) for decoding a data stream allocated into data packets contains a control unit (54), a stream demultiplexer (26), audio and video decoders (38 and 40), a memory management unit (60), and audio and video input and output buffers. Upon demultiplexing and depacketizing the data packets without interrupting the control unit, the demultiplexer sends encoded audio and video data to the audio and video input buffers. Video messages dealing with video timing information and identifying where encoded video data is stored in the video input buffer are furnished by the demultiplexer for use by the control unit. Utilizing corresponding video instructions provided from the control unit, the video decoder decodes encoded video data to produce decoded video data supplied to the video output buffer. The audio decoder decodes encoded audio data to produce decoded audio data supplied to the audio output buffer. The memory management unit controls transfer of decoded audio data to and from the audio output buffer.
摘要翻译：用于解码分配到数据分组中的数据流的系统（20）包括控制单元（54），流解复用器（26），音频和视频解码器（38和40），存储器管理单元（60）视频输入和输出缓冲区。在不中断控制单元的情况下对数据分组进行解复用和解封装，解复用器将编码的音频和视频数据发送到音频和视频输入缓冲器。视频消息处理视频定时信息并识别编码视频数据存储在视频输入缓冲器中的位置由解复用器提供，供控制单元使用。利用从控制单元提供的相应的视频指令，视频解码器解码编码的视频数据，产生提供给视频输出缓冲器的解码视频数据。音频解码器解码编码的音频数据以产生提供给音频输出缓冲器的解码音频数据。存储器管理单元控制向/从音频输出缓冲器的解码音频数据的传送。

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