公开(公告)号：US06694016B1

公开(公告)日：2004-02-17

申请号：US09943825

申请日：2001-08-30

Applicant: Ting Sun ,  Brian L. Hinman

Inventor： Ting Sun ,  Brian L. Hinman

IPC: H04M100

CPC classification number: H04M11/062 ,  H04L25/085 ,  H04M1/738

Abstract: An odd-order low-pass microfilter is disclosed for being interposed between a home telephone wiring network and a POTS, or voice band, device to separate voice-band signals from higher frequency signals, such as ADSL signals and home networking signals. The filter topology is substantially symmetric so that the filter is reversible in that either end of the filter may be directly coupled to the home telephone wiring network without impairing high frequency signal performance or the filter characteristic of the filter. In one embodiment, the filter is a three-pole filter with a single capacitor disposed between a pair of coupled inductors. Each of the coupled inductors advantageously has an interwinding capacitance over about 100 pF to improve the filter frequency response without increasing the cost of the filter. In another embodiment, the filter is a reversible three-pole filter with a single capacitor disposed between first and second pairs of uncoupled, or discrete, inductors.

Abstract translation: 公开了一种用于将家用电话布线网络和POTS或语音频带设备之间插入的奇数低通微过滤器，用于将语音频带信号与诸如ADSL信号和家庭联网信号的较高频率信号分离。 滤波器拓扑基本对称，使得滤波器是可逆的，因为滤波器的任一端可以直接耦合到家庭电话布线网络，而不会损害高频信号性能或滤波器的滤波器特性。 在一个实施例中，滤波器是三极滤波器，其中单个电容器设置在一对耦合电感器之间。 每个耦合电感器有利地具有大约100pF的绕组电容，以提高滤波器频率响应，而不增加滤波器的成本。 在另一个实施例中，滤波器是可逆三极滤波器，其中单个电容器设置在第一和第二对非耦合或离散电感器之间。

公开(公告)号：US06212263B1

公开(公告)日：2001-04-03

申请号：US09164136

申请日：1998-09-30

Applicant: Ting Sun ,  Robert F. Watts

Inventor： Ting Sun ,  Robert F. Watts

IPC: H04M1100

CPC classification number: H04L12/10 ,  H04L25/4927 ,  H04L27/0008 ,  H04L27/2601 ,  H04M11/062

Abstract: A combination x digital subscriber line (xDSL) and analog modem including a computer bus interface, codecs, an analog front end (AFE) for xDSL communications coupled to a plain old telephone service (POTS) line and a direct access arrangement (DAA) for analog communications also coupled to the POTS line. The modem is designed on a peripheral component interconnect (PCI) card. Generally, ±12, 5 and 3.3 volts are available for PCI components. Traditionally, the AFEs for non-PCI modems were designed to operate on ±12 volts for differential POTS line driving. For differential POTS line driving, the AFE typically requires a regulated voltage. However, ±12 volts supplied to PCI cards are typically not as well regulated as the 5 and 3.3 volts, and therefore the ±12 volts is generally unsuitable for PCI modem AFE design. Furthermore, in computers that operate in different power management modes, ±12 volts may not be available to the PCI card while 5 and/or 3.3 volts may be available to the PCI card in certain power management modes. In one embodiment, the AFE operates on 5 volts. Power for the modem is made available from other parts of the computer supply in these power management modes.

Abstract translation: 组合x数字用户线（xDSL）和模拟调制解调器，包括计算机总线接口，编解码器，用于耦合到普通老式电话服务（POTS）线路的xDSL通信的模拟前端（AFE）和用于 模拟通信也耦合到POTS线路。 调制解调器设计在外围组件互连（PCI）卡上。 通常，对于PCI组件，可以使用±12,5和3.3伏。 传统上，非PCI调制解调器的AFE被设计为在±12伏特下进行差分POTS线路驱动。 对于差分POTS线路驱动，AFE通常需要调节电压。 然而，提供给PCI卡的±12伏特通常不如5和3.3伏稳压，因此±12伏通常不适合于PCI调制解调器AFE设计。 此外，在以不同的电源管理模式运行的计算机中，PCI卡可能不能使用±12伏特，而在某些电源管理模式下，5和/或3.3伏可能可用于PCI卡。 在一个实施例中，AFE工作在5伏特。 在这些电源管理模式下，调制解调器的电源可从计算机电源的其他部分获得。

公开(公告)号：US5905794A

公开(公告)日：1999-05-18

申请号：US730371

申请日：1996-10-15

Applicant: Timothy D. Gunn ,  Ting Sun

Inventor： Timothy D. Gunn ,  Ting Sun

IPC: H04M1/57 ,  H04M11/06

CPC classification number: H04M1/573 ,  H04M11/06

Abstract: An interface for modems is described which provides rapid identification of a caller and limited access based on a variety of parameters obtained from caller identification information encoded by the telephone company. A line reversal detector is incorporated to signal when the caller identification information is available for reception. A two stage detection system is used to eliminate false signaling of line reversals and discriminate line reversals from ringing and other noise signals.

Abstract translation: 描述了一种用于调制解调器的接口，其基于从由电话公司编码的呼叫者识别信息获得的各种参数，提供呼叫者的快速识别和有限接入。 当呼叫者识别信息可用于接收时，并入线路反转检测器以通知信号。 使用两级检测系统来消除线路反转的虚假信号，并区分线路反转与振铃等噪声信号。

公开(公告)号：US5546448A

公开(公告)日：1996-08-13

申请号：US337292

申请日：1994-11-10

Applicant: Ty J. Caswell ,  Jeffrey P. Davis ,  Gregory R. Johnson ,  Timothy J. Reinarts ,  Ting Sun

Inventor： Ty J. Caswell ,  Jeffrey P. Davis ,  Gregory R. Johnson ,  Timothy J. Reinarts ,  Ting Sun

IPC: H04M1/663 ,  H04M11/06 ,  H04M1/56 ,  H04M11/00 ,  H04M15/00

CPC classification number: H04M11/06 ,  H04M1/663

Abstract: An interface for modems is described which provides rapid identification of a caller and limited access based on a variety of parameters obtained from caller identification information encoded by the telephone company. The incoming telephone call information is compared to a preprogrammed access matrix to determine if the caller is authorized to access the modem connected to the interface. A telephone call screening method and apparatus which incorporates the encoded caller identification is also described. Finally, a method and apparatus for a telephone database for statistical accounting is described.

Abstract translation: 描述了一种用于调制解调器的接口，其基于从由电话公司编码的呼叫者识别信息获得的各种参数，提供呼叫者的快速识别和有限接入。 将来电电话信息与预编程的接入矩阵进行比较，以确定呼叫者是否被授权访问连接到该接口的调制解调器。 还描述了组合编码的呼叫者身份的电话呼叫筛选方法和装置。 最后，描述用于统计计费的电话数据库的方法和装置。