公开(公告)号：EP1331803A2

公开(公告)日：2003-07-30

申请号：EP02102877.4

申请日：2002-12-23

Applicant: Telogy Networks Inc.

Inventor： Fruth, Frank E.

IPC: H04N1/327 ,  H04M11/06 ,  H04Q3/62

CPC classification number: H04L12/66 ,  H04M7/1245 ,  H04M2203/2066 ,  H04M2203/657 ,  H04N1/00281 ,  H04N1/00312 ,  H04N1/32704 ,  H04N1/32708 ,  H04N1/32713 ,  H04N1/32721 ,  H04N1/32726

Abstract: A method of discriminating voice, data, and facsimile calls communicated through a voice-over-packet network. The gateway (2) is provided with software which can identify the existence of an answer signal (ANS) or a modified answer signal (ANSam) communicated between an answering modem (4) and an originating modem (1) over a packet network (5) during a voice state call. The originating gateway (2) can generate an ANS tone according to the protocols of the originating modem (1), using an originating-side gateway (2), when the existence of the ANS signal is identified by the receiving-side gateway (3). The originating gateway also generates an ANSam tone according to the protocols of the originating modem, using the originating-side gateway, when the existence of the ANSam signal is identified by the receiving-side gateway.

Abstract translation: 识别语音，数据，并通过一个声音在分组网络传送的传真呼叫的方法。 网关（2）设置有软件，该软件能够识别的应答信号（ANS）或之间通信修正的应答信号（ANSam的）在应答调制解调器（4）的存在，并在（发端调制解调器（1）在分组网络5 ）语音通话状态中。 始发端网关（2）可以在ANS音调雅丁到发端调制解调器的协议产生（1），使用在始发侧网关（2）当ANS信号的存在由接收侧网关鉴定（3 ）。 由此始发端网关生成ANSam的音调gemäß到发端调制解调器的协议的速率，使用始发侧网关，当ANSam信号的存在由接收侧网关标识。

公开(公告)号：EP1161805A4

公开(公告)日：2003-04-23

申请号：EP99961851

申请日：1999-11-30

Applicant: TELOGY NETWORKS INC

Inventor： LIDE DAVID

IPC: G10L19/00 ,  H04J3/06 ,  H04L7/00 ,  H04L12/56

CPC classification number: H04J3/0682 ,  H04J3/0632

Abstract: Packet production by a digital signal processor (DSP) (16) is synchronized wiith modem transmission opportunities in a cable network. The cable modem (17) computes the average waiting time a packet spends waiting to be transmitted by the modem (17). The DSP (16) re-syncs transfer of packets to the modem (17) by using this average waiting time minus a small amount sufficient to account for the maximum anticipated propagation delay, as the amount to delay the transmission of its next packet to the cable modem (17). This invention is a mechanism for resynchronization that is largely independent of any propagation delays inherent in the hardware architecture.

公开(公告)号：EP1279279A1

公开(公告)日：2003-01-29

申请号：EP00926453.2

申请日：2000-04-28

Applicant: Telogy Networks Inc.

Inventor： FRUTH, Frank ,  AKTAR, Shahid ,  WRIGHT, Jeff

IPC: H04N1/32 ,  H04N1/41

CPC classification number: H04N1/324 ,  H04N1/409 ,  H04N2201/329

Abstract: 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：EP1013072A2

公开(公告)日：2000-06-28

申请号：EP98907559.3

申请日：1998-03-03

Applicant: Telogy Networks, Inc.

Inventor： SCOTT, Jeffrey, A.

IPC: H04N1/32 ,  H04N1/00

CPC classification number: H04N1/32795 ,  H04N1/00281 ,  H04N2201/0015 ,  H04N2201/0034

Abstract: Providing facsimile communications in a system wherein an originating facsimile terminal equipment (10-1) connects to an intermediate digital network (12) unknown and unpredictable delay via an originating facsimile interface (14-1) and wherein a destination (FTE)(10-2) connects to the network (12) via a destination (FIU)(14-2). The originating (FTE)(10-1) sends data to the destination (FTE)(10-2) via the originating (FIU)(14-1). The originating (FIU)(14-1) sends the data to the destination (FIU)(14-2). While the destination (FIU)(14-2) is waiting for data from the originating (FTE)(10-1), the destination (FIU)(14-2) sends made-up data to the destination (FTE)(10-2) to prevent protocol timeouts of the destination FTE(10-2). The FTEs operate under the G3 protocol. The made-up data is either fill data or stall data, depending on the amount of data accumulated at the destination FIU and on the types of network delays.

公开(公告)号：EP1279279B1

公开(公告)日：2008-01-30

申请号：EP00926453.2

申请日：2000-04-28

Applicant: Telogy Networks Inc.

Inventor： FRUTH, Frank ,  AKTAR, Shahid ,  WRIGHT, Jeff

IPC: H04N1/32 ,  H04N1/41

CPC classification number: H04N1/324 ,  H04N1/409 ,  H04N2201/329

Abstract: 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：EP1741193A2

公开(公告)日：2007-01-10

申请号：EP05729397.9

申请日：2005-03-24

Applicant: Telogy Networks Inc.

Inventor： MODLIN, Cory, S.

IPC: H04B1/38

CPC classification number: H04M11/062 ,  H04L27/2601

Abstract: 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.

公开(公告)号：EP1161805B1

公开(公告)日：2005-11-09

申请号：EP99961851.5

申请日：1999-11-30

Applicant: Telogy Networks Inc.

Inventor： LIDE, David

IPC: H04J3/06

CPC classification number: H04J3/0682 ,  H04J3/0632

公开(公告)号：EP0929958A4

公开(公告)日：2003-06-04

申请号：EP97923547

申请日：1997-05-05

Applicant: TELOGY NETWORKS INC

Inventor： BETTS WILLIAM LEWIS ,  SOUDERS KEITH ALAN

IPC: H04J3/12 ,  H04Q11/04 ,  H04L25/03 ,  H04L25/49

CPC classification number: H04Q11/0421 ,  H04J3/125

Abstract: A rob bit compensation system improves the accuracy of the digital signals (112a) received from and transmitted to a digital network (113) (Figs. 1 and 4), such as a telephone network, that employs rob bit signaling (RBS) wherein the network periodically robs a bit for its own use. The system can be employed within a digital modem (101) or a codec/decoder (codec, 106), each of which is interconnected with the digital network that periodically robs a bit every nth frame, where n is, for example, 6 or 24. The system includes a compensation control utilized to detect when a Least Significant bit (LSB) of a particular frame of data consistently exhibits a certain logic state (164 and 156), either a mark (logical 1) or a space (logical 0). When an LSB of a particular frame does consistently exhibit the certain logic state, then the particular frame is considered an RBS. Furthermore, the compensation control (133) causes a quantity (e.g., one-half of an LSB) to be added or subtracted with the data corresponding with the RBS frame via a set of adders (131a and 131b) in order to enhance accuracy of the RBS frame.

公开(公告)号：EP0920750A4

公开(公告)日：2003-06-04

申请号：EP97925456

申请日：1997-05-05

Applicant: TELOGY NETWORKS INC

Inventor： BETTS WILLIAM LEWIS ,  SOUDERS KEITH ALAN

IPC: H04B14/04 ,  H04J3/12 ,  H04L25/49 ,  H04B15/00 ,  H04L1/16 ,  H04L7/00

CPC classification number: H04B14/048 ,  H04J3/125 ,  H04L25/4927

Abstract: A cooperative feedback system (210) is provided for a compensation system associated with a transmitter or codec, for enabling the compensation system to improve the accuracy of digital signals transmitted to a digital network (113). The cooperative feedback system is particularly suited for providing feedback to a compensation system (130) for correction distortion resulting from rob bits signaling (RBS), digital loss, or other types of digital signal degradation. The cooperative feedback system includes a compensation selector (204) in a transmitter (181) that combines compensations with frames of digital data by way of an addition mechanism to produce modified digital data frames. A receiver (214) is configured to receive the modified digital data frames (118b) from the digital network (113), to determine if accuracy of each of the modified digital data frames has increased based upon a corresponding compensation, and to communicate one or more quality feedback signals (118a) to the transmitter (181) via the digital network (113). The transmitter (181) receives the quality feedback signal(s) and selects and implements the compensation that yields a highest accuracy based upon the quality feedback signal(s).

公开(公告)号：EP1209853A1

公开(公告)日：2002-05-29

申请号：EP01000643.5

申请日：2001-11-19

Applicant: Telogy Networks Inc.

Inventor： George, Edward ,  Guven, Erhan ,  Fruth, Frank Edward

IPC: H04L12/28

CPC classification number: H04L12/2898 ,  H04L12/4633 ,  H04L69/40 ,  H04M11/06

Abstract: The modem relay provides a local interface to the modem on both ends of a call, demodulates the full duplex data stream, packetizes the bits for transport over an IP network, and remodulates the data stream at the remote end. The modem relay provides bandwidth savings, and resistance to network packet loss. The modem relay mitigates the problems associated with using G.711 to send modem traffic, the physical layer of the modem signal is terminated locally for both ends of the call, only the data stream is sent over the network, and saving bandwidth. The modem data stream can also be transported in a redundant fashion, which allows for seamless error recovery in the event of single or double packet loss events. Since the data stream can be completely recovered after packet loss, the remote modem is able to recreate the local modem's transmission exactly. Bandwidth savings are also realized because the IP network only carries modem traffic when data is transmitted by the modem. When the modem is not transmitting data, no packets are sent on the IP network. In contrast, continuous 64 kbps packetization takes place when using G.711 to carry modem traffic. Lost packet recovery minimizes computational requirements and provides for recovery of lost packets during burst loss of a series of sequential packets. A redundant series of packets is sent with a staggered delay from the original series of packets. Staggering the transmission of redundant packets allows for the recovery of packets in the event that more than a single packet is lost. The length of the stagger must be greater than the length of the lost packets for all packets to be recovered. Staggering the transmission of redundant packets creates a delay in the recovery of lost packets equal to the length of the stagger. The length of the stagger is selected to accommodate expected burst packet loss and to provide acceptable delay.

Abstract translation: 调制解调器继电器在呼叫两端向调制解调器提供本地接口，解调全双工数据流，将这些比特分组化，以便通过IP网络传输，并重新调制远端的数据流。 调制解调器继电器提供带宽节省，并阻止网络丢包。 调制解调器中继减轻了使用G.711发送调制解调器流量的问题，调制解调器信号的物理层在呼叫两端本地终止，只有数据流通过网络发送，并节省带宽。 调制解调器数据流也可以以冗余的方式传输，这允许在单次或双重丢包事件的情况下进行无缝错误恢复。 由于数据流在数据包丢失后可以完全恢复，因此远程调制解调器能够准确地重新创建本地调制解调器的传输。 带宽节省也是实现的，因为当调制解调器发送数据时，IP网络仅承载调制解调器流量。 当调制解调器不传输数据时，IP网络上不会发送数据包。 相比之下，当使用G.711携带调制解调器流量时，会发生连续的64 kbps分组。 丢包分组恢复使计算需求最小化，并提供在一系列顺序分组的突发丢失期间恢复丢失的分组。 一系列冗余的数据包以原始系列数据包的交错延迟发送。 交错冗余数据包的传输允许在多于一个数据包丢失的情况下恢复数据包。 交错的长度必须大于要恢复的所有数据包的丢失数据包的长度。 交错冗余数据包的传输会导致丢失数据包的恢复等于交错长度的延迟。 选择交错的长度以适应预期的突发分组丢失并提供可接受的延迟。