公开(公告)号：US08068430B2

公开(公告)日：2011-11-29

申请号：US12263893

申请日：2008-11-03

Applicant: Alon Geva ,  Ehud Malik ,  Yaakov Stein

Inventor： Alon Geva ,  Ehud Malik ,  Yaakov Stein

IPC: G01G31/08 ,  H04J3/16

CPC classification number: H04L12/2879 ,  H04J3/0667 ,  H04J3/0673

Abstract: A method and system in which a Digital Subscriber Line Access Multiplexer (DSLAM) that is part of a DSL (Digital Subscriber Line) system is able to provide synchronous services to end user equipment connected to the DSLAM via a DSL link and Customer Premises Equipment (CPE). A sniffer device having direct or indirect access to a Primary Reference Clock (PRC) of the DSL system calculates the phase difference between the PRC and the DSLAM's Local Timing Reference (LTR). The phase difference is sent to the CPEs requiring accurate reference clock frequency. The CPEs are able to derive the PRC from the phase difference information transmitted by the sniffer device thus enabling synchronous end user equipment operation.

Abstract translation: 作为DSL（数字用户线路）系统的一部分的数字用户线路接入复用器（DSLAM）能够通过DSL链路和客户端设备（例如，向DSLAM提供连接到DSLAM的终端用户设备）提供同步服务的方法和系统 CPE）。 具有对DSL系统的主参考时钟（PRC）的直接或间接访问的嗅探装置计算PRC和DSLAM的本地定时参考（LTR）之间的相位差。 相位差发送到需要精确参考时钟频率的CPE。 CPE能够根据由嗅探装置发送的相位差信息导出PRC，从而实现同步最终用户设备的操作。

公开(公告)号：US20110115534A1

公开(公告)日：2011-05-19

申请号：US12946872

申请日：2010-11-16

Applicant: Yaakov Stein ,  Alon Geva ,  Yzhak Sorani

Inventor： Yaakov Stein ,  Alon Geva ,  Yzhak Sorani

IPC: H03L7/06 ,  H01J40/14

CPC classification number: G04F5/00

Abstract: A frequency reference, comprising: an optical waveguide closed on itself so that a light pulse inserted into the waveguide circulates therein; a light source coupled to the waveguide and controllable to generate a light pulse that circulates in the waveguide; and a detector coupled to a region of the waveguide that generates an output pulse each time the circulating light pulse passes the region.

Abstract translation: 一种频率参考，包括：光波导自身闭合，使得插入波导中的光脉冲在其中循环; 光源，其耦合到所述波导并且可控制以产生在所述波导中循环的光脉冲; 以及耦合到波导区域的检测器，每当循环光脉冲通过该区域时产生输出脉冲。

公开(公告)号：US20100111114A1

公开(公告)日：2010-05-06

申请号：US12263893

申请日：2008-11-03

Applicant: Alon GEVA ,  Ehud MALIK ,  Yaakov STEIN

Inventor： Alon GEVA ,  Ehud MALIK ,  Yaakov STEIN

IPC: H04J3/06

CPC classification number: H04L12/2879 ,  H04J3/0667 ,  H04J3/0673

Abstract: A method and system in which a Digital Subscriber Line Access Multiplexer (DSLAM) that is part of a DSL (Digital Subscriber Line) system is able to provide synchronous services to end user equipment connected to the DSLAM via a DSL link and Customer Premises Equipment (CPE). A sniffer device having direct or indirect access to a Primary Reference Clock (PRC) of the DSL system calculates the phase difference between the PRC and the DSLAM's Local Timing Reference (LTR). The phase difference is sent to the CPEs requiring accurate reference clock frequency. The CPEs are able to derive the PRC from the phase difference information transmitted by the sniffer device thus enabling synchronous end user equipment operation.

Abstract translation: 作为DSL（数字用户线路）系统的一部分的数字用户线路接入复用器（DSLAM）能够通过DSL链路和客户端设备（例如，向DSLAM提供连接到DSLAM的终端用户设备）提供同步服务的方法和系统 CPE）。 具有对DSL系统的主参考时钟（PRC）的直接或间接访问的嗅探装置计算PRC和DSLAM的本地定时参考（LTR）之间的相位差。 相位差发送到需要精确参考时钟频率的CPE。 CPE能够根据由嗅探装置发送的相位差信息导出PRC，从而实现同步最终用户设备的操作。

公开(公告)号：US20060106597A1

公开(公告)日：2006-05-18

申请号：US10529280

申请日：2003-09-24

Applicant: Yaakov Stein

Inventor： Yaakov Stein

IPC: G10L21/00

CPC classification number: G10L19/20 ,  G10L19/167

Abstract: A system and method of compressing audio signals (110, 116, 130, 136, 140, 146) which simultaneously contain speech (110, 116), music (130, 136, 140, 146) and possibly other audio in such fashion as to reduce the required bandwidth or storage capacity. Audio (110, 116, 130, 136, 140, 146) is transmitted as simultaneous but separate streams of speech audio (110, 116) and music (or other non-speech) audio (130, 136, 140, 146), as well as other streams such as video (210, text (120, 220), computer graphics (230), etc. By keeping the music (130, 136, 140, 146) separate from the speech (110, 116), each can be maximally compressed. By synchronizing these streams (110, 116, 130, 136, 140, 146, 210, 216, 220, 230), the desired combination can be recreated at the receiver with the user being unaware of the separation. Instead of analog or digital mixing of the music or other non-speech audio (130, 136, 140, 146) with the speech audio (110, 116) to create a composite audio stream (110, 116, 130, 136, 140, 146), the streams are kept logically separate, and, thus, can be optimally compressed using existing technologies.

Abstract translation: 一种压缩音频信号（110,116,130,136,140,​​146）的系统和方法，其同时包含语音（110,116），音乐（130,136,140,​​146）以及可能的其它音频， 减少所需的带宽或存储容量。 音频（110,116,130,136,140,​​146）作为同时但分开的语音音频流（110,116）和音乐（或其他非语音）音频（130,136,140,​​146）被传输，如 以及诸如视频（210，文本（120,220），计算机图形（230）等的其他流。通过将音乐（130,136,140,​​146）与语音（110,116）分离，每个可以 通过同步这些流（110,116,130,136,140,​​146,210,216,220,230），可以在接收器处重新创建所需的组合，使用者不知道分离，而不是 将音乐或其他非语音音频（130,136,140,​​146）与语音音频（110,116）的模拟或数字混合以产生复合音频流（110,116,130,136,140,​​146） ，流在逻辑上保持分离，因此可以使用现有技术进行最佳压缩。