公开(公告)号：EP1279279A4

公开(公告)日：2005-10-05

申请号：EP00926453

申请日：2000-04-28

申请人： TELOGY NETWORKS INC

发明人： FRUTH FRANK ,  AKTAR SHAHID ,  WRIGHT JEFF

IPC分类号： H04N1/00 ,  H04N1/32 ,  H04N1/409 ,  H04N1/41

CPC分类号： H04N1/324 ,  H04N1/409 ,  H04N2201/329

摘要： A device and method for providing real time compensation for packet loss in the transmission of facsimile data over packet networks to avoid the generation of page loss data and the termination of facsimile transmission. Facsimile devices have a low tolerance for interruptions in transmission. Packet networks commonly have a transmission interruption rate above the tolerance of facsimile equipment. In order to compensate for transmission interruption, the present invention teaches the buffering of facsimile data by scan line at the receiving end, the evaluation of buffered scan lines for packet loss and the discarding of scan lines having packet loss to conceal the packet loss from the receiving facsimile equipment to avoid detection of page errors by the receiving facsimile equipment which could cause loss of facsimile transmission. Discarding damaged scan lines instead of repair or replacement saves computational time and storage capacity, allowing for real-time compensation to provide for optimal transmission.

公开(公告)号：EP1363431A3

公开(公告)日：2004-02-25

申请号：EP03100951.7

申请日：2003-04-08

申请人： Telogy Networks Inc.

发明人： Modlin, Cory Samuel

IPC分类号： H04L25/49 ,  H04L1/00

CPC分类号： H04L25/4927 ,  H04L1/0003

摘要： A method for constellation design in a telecommunications network (10) using pulse code modulation to transmit data signals upstream (30) between client and server voice-band modems (12,26). The invention selects a constellation for transmission over an analog channel of an equivalence class of data points using pulse code modulation based on the presence or absence of robbed bit signaling and interference from echo levels. The constellation is designed by determining noise in a PCM channel using a cumulative distribution function for echo (90), determining the extent of said noise for an array of possible constellation points (92), and selecting constellation points such that the largest negative noise of a first point remains above the largest positive noise level of a neighboring second point (94). Constellations are created off-line and stored (96) for retrieval during modulation depending on the level of the echo.

摘要翻译： 一种用于电信网络（10）中的星座设计的方法，所述电信网络（10）使用脉冲编码调制来在客户端和服务器语音频带调制解调器（12,26）之间向上游（30）传输数据信号。 本发明基于是否存在夺位信令和来自回波电平的干扰，使用脉码调制来选择用于在等效类别的数据点的模拟信道上传输的星座。 通过使用回声（90）的累积分布函数来确定PCM信道中的噪声，确定一组可能星座点（92）的所述噪声的程度，并且选择星座点以使得最大负噪声为 第一点保持在相邻第二点（94）的最大正噪声水平之上。 离线创建星座并存储（96）以在调制期间取回，取决于回声的级别。

公开(公告)号：EP1229520A2

公开(公告)日：2002-08-07

申请号：EP01000577.5

申请日：2001-10-29

申请人： Telogy Networks Inc.

发明人： Li, Dunling ,  Sisli, Gokhan ,  Thomas, Daniel

IPC分类号： G10L19/00

CPC分类号： G10L19/012

摘要： A method to reduce the amount of bandwidth used in the transmission of digitized voice packets is described. The method is used to reduce the number of transmitted packets by suspending transmission during periods of silence or when only noise is present. The system determines if a background noise update is warranted based on human auditory perception factors instead of an artificial limiter on excessive silence insertion descriptor packets. The system searches for characteristics in the perceptual changes of background noise instead of analyzing speech for improved audio compression. The invention weighs factors affecting the perception of sound including frequency masking, temporal masking, loudness perception based on tone, and auditory perception differential based on tone.

摘要翻译： 描述了减少数字化语音分组传输中使用的带宽量的方法。 该方法用于通过在静默期间或当仅存在噪声时暂停传输来减少发送分组的数量。 系统基于人类的听觉感知因素来确定是否需要背景噪声更新，而不是在过度沉默插入描述符分组上使用人造限制器。 系统搜索背景噪声的感知变化中的特征，而不是分析语音以改进音频压缩。 本发明重影影响声音感知的因素，包括频率屏蔽，时间屏蔽，基于音调的响度感知，以及基于音调的听觉感知差异。

公开(公告)号：EP1157498A4

公开(公告)日：2002-04-17

申请号：EP99967632

申请日：1999-12-27

申请人： TELOGY NETWORKS INC

发明人： MLADENOVIC ZORAN ,  PATEL PIYUSH SHANKERBHAI

IPC分类号： H04B3/23 ,  H04L5/14 ,  H04L25/49 ,  H04M1/60 ,  H04M11/00

CPC分类号： H04L5/14 ,  H04B3/23 ,  H04L25/4927

摘要： A modem-based echo cancellation enhancement (10) for digital communications networks is provided. The effects on echo cancellation of non-linearity in a far end echo path in a digital telephone system are reduced by introduction of non-linearities into the near end signal prior to generation of the echo cancellation signal. Near-end signal is sampled after linear-to-PCM conversion (13). A PCM-to-linear conversion (25) is added prior to the echo canceler (14). The near-end delay line can be provided between the converters to delay the signal as PCM samples, thereby reducing delay line memory requirements.

公开(公告)号：EP1363431B1

公开(公告)日：2018-11-14

申请号：EP03100951.7

申请日：2003-04-08

申请人： Telogy Networks Inc.

发明人： Modlin, Cory Samuel

IPC分类号： H04L25/49 ,  H04L1/00

CPC分类号： H04L25/4927 ,  H04L1/0003

摘要： A method for constellation design in a telecommunications network (10) using pulse code modulation to transmit data signals upstream (30) between client and server voice-band modems (12,26). The invention selects a constellation for transmission over an analog channel of an equivalence class of data points using pulse code modulation based on the presence or absence of robbed bit signaling and interference from echo levels. The constellation is designed by determining noise in a PCM channel using a cumulative distribution function for echo (90), determining the extent of said noise for an array of possible constellation points (92), and selecting constellation points such that the largest negative noise of a first point remains above the largest positive noise level of a neighboring second point (94). Constellations are created off-line and stored (96) for retrieval during modulation depending on the level of the echo.

公开(公告)号：EP1741193A4

公开(公告)日：2011-10-19

申请号：EP05729397

申请日：2005-03-24

申请人： TELOGY NETWORKS INC

发明人： MODLIN CORY S

IPC分类号： H04M11/06 ,  H04B1/38 ,  H04L27/26

CPC分类号： H04M11/062 ,  H04L27/2601

摘要： A method of constructing a valid set of configuration parameters for ADSL2 and ADSL2+ compliant systems include selecting delays of a power of two ms, in which the ADSL2 or ADSL2+ compliant system may also possess a selected minimum noise protection value to produce maximum downstream and upstream net data rates corresponding to the selected delay and the selected minimum noise protection value.

摘要翻译： 为ADSL2和ADSL2 +兼容系统构建一组有效的配置参数的方法包括选择两ms功率的延迟，其中ADSL2或ADSL2 +兼容系统还可以具有选定的最小噪声保护值，以产生最大的下游和上行网络 对应于选定延迟的数据速率和所选择的最小噪声保护值。

公开(公告)号：EP1536611A3

公开(公告)日：2008-01-02

申请号：EP04105959.3

申请日：2004-11-22

申请人： Telogy Networks Inc.

发明人： Adlakha, Sachin ,  Fruth, Frank Edward ,  Kumar, Samant

IPC分类号： H04L29/06 ,  H04M1/253 ,  H04N1/00

CPC分类号： H04L67/06 ,  H04L29/06 ,  H04L29/06027 ,  H04L67/02 ,  H04L69/329 ,  H04M1/2535 ,  H04M2201/52 ,  H04M2207/203 ,  H04N1/00209 ,  H04N1/0022 ,  H04N1/32704 ,  H04N1/32708 ,  H04N1/32719 ,  H04N1/32721 ,  H04N1/32741

摘要： A fax-aware telephone (38) for handling facsimile transmissions over a computer network, such as the Internet, that includes a facsimile processing unit (40) for handling an incoming or outgoing facsimile call, a voice processing unit (42) for handling an incoming or outgoing voice call, a memory unit (44) for storing an incoming facsimile transmission, and a file transfer protocol client (46) for transferring a facsimile transmission to the computer network, an external storage device, or to a printer driver. The fax-aware telephone (38) handles a facsimile call and a voice call together over a single data line from a computer network.

公开(公告)号：EP1121786A4

公开(公告)日：2007-05-30

申请号：EP99941106

申请日：1999-08-13

申请人： TELOGY NETWORKS INC

发明人： MORGAN EDWARD ,  MLADENOVIC ZORAN ,  PATEL PIYUSH ,  SU QIN

IPC分类号： H04L12/54 ,  H04M3/00 ,  G05B23/02 ,  H04J3/12 ,  H04L12/64 ,  H04L27/32 ,  H04M7/00 ,  H04M7/06 ,  H04Q1/30 ,  H04Q1/45

CPC分类号： H04L12/6418 ,  H04L27/32 ,  H04L2012/6475 ,  H04M7/1295

摘要： A method of detecting control tones in a digital signal by using a tone detection unit (11) (TDU) and a packet voice protocol unit (12) (PVPU) in a network over which the signal is transmitted. The TDU (11) detects the presence of a control tone in the signal within the first 5 ms of transmission and generates an alert signal (23) to the PVPU (12) to cease further transmission of the signal. Upon confirmation, the PVPU (12) may halt the transmission and buffer or delete the voice signal packets. Alternatively, if the control tones are not present in the signal, the PVPU (12) may continue transmission of any buffered packets. The method further incorporates the sending of the control tone signal to the receiving end of the transmission of the voice packets following transmission of the control tone to the receiving end.

摘要翻译： 一种通过使用在其上发送信号的网络中的音调检测单元（11）（TDU）和分组语音协议单元（12）（PVPU）来检测数字信号中的控制音调的方法。 TDU（11）在传输的前5ms内检测到信号中存在控制音调，并向PVPU（12）产生警报信号（23）以停止信号的进一步传输。 在确认之后，PVPU（12）可以停止传输并缓冲或删除语音信号分组。 或者，如果控制音调不存在于信号中，则PVPU（12）可以继续传输任何缓冲的分组。 该方法还包括在将控制音调传送到接收端之后，将控制音调信号发送到语音分组传输的接收端。

公开(公告)号：EP1209853B1

公开(公告)日：2006-10-04

申请号：EP01000643.5

申请日：2001-11-19

申请人： Telogy Networks Inc.

发明人： George, Edward ,  Guven, Erhan ,  Fruth, Frank Edward

IPC分类号： H04L12/28

CPC分类号： H04L12/2898 ,  H04L12/4633 ,  H04L69/40 ,  H04M11/06

公开(公告)号：EP1536611A2

公开(公告)日：2005-06-01

申请号：EP04105959.3

申请日：2004-11-22

申请人： Telogy Networks Inc.

发明人： Adlakha, Sachin ,  Fruth, Frank Edward ,  Kumar, Samant

IPC分类号： H04L29/06 ,  H04M1/253 ,  H04N1/00

CPC分类号： H04L67/06 ,  H04L29/06 ,  H04L29/06027 ,  H04L67/02 ,  H04L69/329 ,  H04M1/2535 ,  H04M2201/52 ,  H04M2207/203 ,  H04N1/00209 ,  H04N1/0022 ,  H04N1/32704 ,  H04N1/32708 ,  H04N1/32719 ,  H04N1/32721 ,  H04N1/32741

摘要： A fax-aware telephone (38) for handling facsimile transmissions over a computer network, such as the Internet, that includes a facsimile processing unit (40) for handling an incoming or outgoing facsimile call, a voice processing unit (42) for handling an incoming or outgoing voice call, a memory unit (44) for storing an incoming facsimile transmission, and a file transfer protocol client (46) for transferring a facsimile transmission to the computer network, an external storage device, or to a printer driver. The fax-aware telephone (38) handles a facsimile call and a voice call together over a single data line from a computer network.

摘要翻译： 一种用于处理诸如因特网的计算机网络上的传真传输的传真感知电话（38），其包括用于处理传入或传出传真呼叫的传真处理单元（40），用于处理传真 输入或输出语音呼叫，用于存储传入传真传输的存储单元（44）以及用于将传真传输传送到计算机网络的文件传输协议客户端（46），外部存储设备或打印机驱动程序。 传真感知电话（38）通过来自计算机网络的单个数据线一起处理传真呼叫和语音呼叫。