专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06408034B1 Framed delta sigma data with unlikely delta sigma data patterns 失效
标题翻译：具有不太可能的delta-sigma数据模式的成帧的delta sigma数据
公开(公告)号：US06408034B1
公开(公告)日：2002-06-18
申请号：US09034682
申请日：1998-03-04
申请人： Andrew W. Krone , Jerrell P. Hein , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
发明人： Andrew W. Krone , Jerrell P. Hein , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
IPC分类号： H04L706
CPC分类号： H04L25/0266 , H04L7/033 , H04L25/06 , H04M1/573 , H04M11/06 , H04M19/001 , H04M19/02
摘要： A communication system having a framing pattern to frame data to be transmitted to a phone line is provided. The data may be framed on one side of an isolation barrier and a clock signal may be extracted from the framed data stream on the other side of the barrier. The data to be framed is provided from an output of a delta-sigma modulator and the framing pattern utilized is a pattern that is unlikely to match the data stream output of the modulator. Thus, an erroneous detection of the framing pattern is unlikely to occur. The framing pattern is chosen to correspond to the expected modulator output for a full scale input signal that is at a frequency higher than the maximum actual frequency of the input data provided to the modulator.
摘要翻译：提供一种具有用于将数据发送到电话线的帧模式的通信系统。数据可以在隔离屏障的一侧成帧，并且可以在屏障的另一侧从成帧的数据流中提取时钟信号。要被成帧的数据由Δ-Σ调制器的输出提供，并且所使用的成帧模式是不太可能匹配调制器的数据流输出的模式。因此，不可能发生对框架图案的错误检测。选择成帧模式以对应于处于高于提供给调制器的输入数据的最大实际频率的频率的满量程输入信号的期望调制器输出。

2. 发明授权

US06975723B2 Architecture for minimum loop current during ringing and caller ID 失效
标题翻译：振铃期间最小回路电流的结构和来电显示
公开(公告)号：US06975723B2
公开(公告)日：2005-12-13
申请号：US10429795
申请日：2003-05-05
申请人： Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland , Jerrell P. Hein , Andrew W. Krone
发明人： Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland , Jerrell P. Hein , Andrew W. Krone
IPC分类号： H03M1/42 , H04L7/033 , H04L25/02 , H04L25/06 , H04M1/57 , H04M11/06 , H04M19/00 , H04M19/02 , H04M1/00 , H04M9/00
CPC分类号： H04M1/573 , H04L7/033 , H04L25/0266 , H04L25/06 , H04M11/06 , H04M19/001 , H04M19/02
摘要： A communication system is provided which draws virtually no loop current during a ringing burst and only draws on-hook loop current during the caller ID field. More particularly, ringer burst circuitry may be powered from the user powered circuitry by the transmission of power across the isolation barrier rather than being powered from the phone line. Thus, loop current need not be drawn from the TIP/RING lines during ringer bursts. The isolation barrier may be a capacitive isolation barrier which allows bidirectional communication and extraction of power from signals transmitted across the barrier.
摘要翻译：提供一种通信系统，其在振铃突发期间几乎不消除环路电流，并且仅在呼叫者ID字段期间吸引挂机环路电流。更具体地，振铃突发电路可以由用户供电的电路通过跨隔离屏障的功率传输而不是从电话线供电。因此，在振铃器脉冲串期间，不需要从TIP / RING线路中抽出回路电流。隔离屏障可以是电容隔离屏障，其允许通过屏障传输的信号的双向通信和功率提取。

3. 发明授权

US06442271B1 Digital isolation system with low power mode 失效
标题翻译：低功耗模式的数字隔离系统
公开(公告)号：US06442271B1
公开(公告)日：2002-08-27
申请号：US09034621
申请日：1998-03-04
申请人： George Tyson Tuttle , Jerrell P. Hein , Timothy J. Dupuis , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
发明人： George Tyson Tuttle , Jerrell P. Hein , Timothy J. Dupuis , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
IPC分类号： H04M100
CPC分类号： H04L25/06 , H04L7/033 , H04L25/0266 , H04M1/573 , H04M11/06 , H04M19/001 , H04M19/02
摘要： A method and apparatus are provided for maintaining communication across an isolation barrier even if the external circuitry to which it is connected enters a low-power mode. In normal operation the isolation barrier local clock is synchronized with a clock signal provided by the external circuitry. If the external circuitry enters a low-power mode, its clock signal often slows or stops. In that case, the local clock in the isolation barrier switches to a free-running mode, wherein a VCO voltage input is provided by a bias voltage generator instead of by a PLL circuit. The VCO thus continues to provide a local clock signal in order to allow communication of information across the isolation barrier even if the external circuitry is not active. This enables the isolation barrier to receive and process an external signal, such as a ring signal, in low-power mode. Means are provided for causing the external circuitry to “wake up” in the event that a ring or other signal is detected by the isolation system, at which time the system resumes normal operation.
摘要翻译：提供了一种用于在隔离屏障上保持通信的方法和装置，即使其所连接的外部电路进入低功率模式。在正常操作中，隔离栅本地时钟与由外部电路提供的时钟信号同步。如果外部电路进入低功耗模式，则其时钟信号通常会减慢或停止。在这种情况下，隔离栅中的本地时钟切换到自由运行模式，其中VCO电压输入由偏置电压发生器而不是由PLL电路提供。因此，VCO因此继续提供本地时钟信号，以便即使外部电路不活动，也可以跨隔离屏障通信信息。这使得隔离屏障能够在低功率模式下接收和处理外部信号，例如振铃信号。提供了在隔离系统检测到环或其他信号的情况下使外部电路“唤醒”的装置，此时系统恢复正常操作。

4. 发明授权

US06456712B1 Separation of ring detection functions across isolation barrier for minimum power 失效
标题翻译：将隔离屏障的环检测功能分离成最小功率
公开(公告)号：US06456712B1
公开(公告)日：2002-09-24
申请号：US09034453
申请日：1998-03-04
申请人： Jerrell P. Hein , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
发明人： Jerrell P. Hein , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
IPC分类号： H04M100
CPC分类号： H04L25/06 , H04L7/033 , H04L25/0266 , H04M1/573 , H04M11/06 , H04M19/001 , H04M19/02
摘要： A communication system of the present invention utilizes ring detection circuitry on both sides of an isolation barrier. More particularly, the ring detection circuitry may include ring burst circuitry on the phone line side of the isolation barrier and ringer timing circuits on the powered side of the isolation barrier. The digital burst peak signal may be transmitted through the isolation barrier to the ringer timing circuits. By splitting the ring detection circuitry so that the ringer timing circuits are placed on the powered side of the isolation barriers, a significant reduction in the power usage on the phone line side of the barrier related to the ring detection function may occur. The outputs of the ringing timing circuits may be provided to circuits on either side of the isolation barrier. Thus, the ring detection function may be accomplished in a system utilizing an efficient bidirectional capacitive barrier while still minimizing power usage on the line side of the barrier.
摘要翻译：本发明的通信系统在隔离屏障的两侧使用振铃检测电路。更具体地，环检测电路可以包括隔离屏障的电话线侧上的环形突发电路和隔离屏障的动力侧的振铃器定时电路。数字脉冲串峰值信号可以通过隔离屏障传输到振铃器定时电路。通过分离环检测电路，使得振铃定时电路被放置在隔离屏障的供电侧，可能会发生与环检测功能相关的屏障的电话线侧上的功率使用的显着减少。振铃定时电路的输出可以被提供给隔离屏障的两侧的电路。因此，环形检测功能可以在利用有效的双向电容性屏障的系统中实现，同时仍然最小化屏障的线路侧的功率使用。

5. 发明授权

US6104794A Architecture for minimum loop current during ringing and caller ID 失效
标题翻译：振铃期间最小回路电流的结构和来电显示
公开(公告)号：US6104794A
公开(公告)日：2000-08-15
申请号：US34460
申请日：1998-03-04
申请人： Jerrell P. Hein , Andrew W. Krone , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
发明人： Jerrell P. Hein , Andrew W. Krone , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
IPC分类号： H03M1/42 , H04L7/033 , H04L25/02 , H04L25/06 , H04M1/57 , H04M11/06 , H04M19/00 , H04M19/02 , H04M1/00 , H04M1/56 , H04M9/00 , H04M9/08 , H04M15/06
CPC分类号： H04L25/06 , H04L25/0266 , H04M1/573 , H04M11/06 , H04M19/001 , H04M19/02 , H04L7/033
摘要： A communication system is provided which draws virtually no loop current during a ringing burst and only draws on-hook loop current during the caller ID field. More particularly, ringer burst circuitry may be powered from the user powered circuitry by the transmission of power across the isolation barrier rather than being powered from the phone line. Thus, loop current need not be drawn from the TIP/RING lines during ringer bursts. The isolation barrier may be a capacitive isolation barrier which allows bidirectional communication and extraction of power from signals transmitted across the barrier.
摘要翻译：提供一种通信系统，其在振铃突发期间几乎不消除环路电流，并且仅在呼叫者ID字段期间吸引挂机环路电流。更具体地，振铃突发电路可以由用户供电的电路通过跨隔离屏障的功率传输而不是从电话线供电。因此，在振铃器脉冲串期间，不需要从TIP / RING线路中抽出回路电流。隔离屏障可以是电容隔离屏障，其允许通过屏障传输的信号的双向通信和功率提取。

6. 发明授权

US06922469B2 Separation of ring detection functions across isolation barrier for minimum power 失效
标题翻译：将隔离屏障的环检测功能分离成最小功率
公开(公告)号：US06922469B2
公开(公告)日：2005-07-26
申请号：US10429335
申请日：2003-05-05
申请人： Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland , Jerrell P. Hein
发明人： Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland , Jerrell P. Hein
IPC分类号： H03M1/42 , H04L7/033 , H04L25/02 , H04L25/06 , H04M1/57 , H04M11/06 , H04M19/00 , H04M19/02 , H04M1/00 , H04M9/00
CPC分类号： H04M1/573 , H04L7/033 , H04L25/0266 , H04L25/06 , H04M11/06 , H04M19/001 , H04M19/02
摘要： A communication system of the present invention utilizes ring detection circuitry on both sides of an isolation barrier. More particularly, the ring detection circuitry may include ring burst circuitry on the phone line side of the isolation barrier and ringer timing circuits on the powered side of the isolation barrier. The digital burst peak signal may be transmitted through the isolation banier to the finger timing circuits. By splitting the ring detection circuitry so that the ringer timing circuits are placed on the powered side of the isolation barriers, a significant reduction in the power usage on the phone line side of the barrier related to the ring detection function may occur. The outputs of the ringing timing circuits may be provided to circuits on either side of the isolation barrier. Thus, the ring detection function may be accomplished in a system utilizing an efficient bidirectional capacitive barrier while still minimizing power usage on the line side of the barrier.
摘要翻译：本发明的通信系统在隔离屏障的两侧使用振铃检测电路。更具体地，环检测电路可以包括隔离屏障的电话线侧的环形突发电路和隔离屏障的动力侧的振铃器定时电路。数字脉冲串峰值信号可以通过隔离放大器传输到手指定时电路。通过分离环检测电路，使得振铃定时电路被放置在隔离屏障的供电侧，可能会发生与环检测功能有关的屏障的电话线侧上的功率使用的显着减少。振铃定时电路的输出可以被提供给隔离屏障的两侧的电路。因此，环形检测功能可以在利用有效的双向电容性屏障的系统中实现，同时仍然最小化屏障的线路侧的功率使用。

7. 发明授权

US06298133B1 Telephone line interface architecture using ringer inputs for caller ID data 失效
标题翻译：电话线路接口架构，使用振铃器输入用于呼叫者ID数据
公开(公告)号：US06298133B1
公开(公告)日：2001-10-02
申请号：US09034802
申请日：1998-03-04
申请人： Jerrell P. Hein , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
发明人： Jerrell P. Hein , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
IPC分类号： H04M1738
CPC分类号： H04L25/06 , H04L7/033 , H04L25/0266 , H04M1/573 , H04M11/06 , H04M19/001 , H04M19/02
摘要： A capacitive interface may be utilized to provide a linear output from the TIP and RING phone lines to ringer circuitry. Because the interface provides a linear signal, the input provided to the ringer circuitry may also be utilized for other functions in addition to ringer detection functions. More particularly, the outputs of the capacitive interface may also be connected to caller ID circuitry input lines so as to also provide caller ID data. The use of common inputs for the ringer circuitry and the caller ID circuitry eliminates the need for a separate caller ID interface.
摘要翻译：可以使用电容接口来提供从TIP和RING电话线到振铃电路的线性输出。由于接口提供线性信号，除了振铃检测功能之外，提供给振铃器电路的输入也可用于其它功能。更具体地，电容接口的输出也可以连接到主叫用户ID电路输入线，以便也提供呼叫者ID数据。使用通用输入用于振铃器电路和呼叫者ID电路消除了对单独的呼叫者ID接口的需要。

8. 发明授权

US06307891B1 Method and apparatus for freezing a communication link during a disruptive event 失效
标题翻译：在破坏性事件期间冻结通信链路的方法和装置
公开(公告)号：US06307891B1
公开(公告)日：2001-10-23
申请号：US09034684
申请日：1998-03-04
申请人： Jerrell P. Hein , Timothy J. Dupuis , George Tyson Tuttle , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
发明人： Jerrell P. Hein , Timothy J. Dupuis , George Tyson Tuttle , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
IPC分类号： H04B1500
CPC分类号： H04L25/06 , H04L7/033 , H04L25/0266 , H04M1/573 , H04M11/06 , H04M19/001 , H04M19/02
摘要： A method and apparatus are provided for suspending or freezing outputs from an isolation barrier system, which may be a digital capacitive isolation barrier system, during the occurrence of events that may disrupt proper operation of the system. Examples of such disruptive events are data rate changes during modem baud rate negotiations, transition to low-power mode, and going off-hook in a telephony system. In each of these cases, the master circuit anticipates the disruption and sends a freeze signal to the isolated circuit. The freeze signal instructs the isolated circuit to enter freeze mode, and no data is sent through the isolation system. Internal control signals are generated and used to establish synchronization and framing after the disruption, and to restore normal operation of the isolation system. In preferred embodiments, the duration of the freeze period may be determined by a timer or by circuitry that detects framing lock or the presence of transients in the system. This invention prevents the transmission of erroneous control signals or corrupted data through the isolation system when it experiences a disruptive event.
摘要翻译：提供了一种方法和装置，用于在发生可能中断系统的正常操作的事件期间，将隔离屏障系统的输出悬挂或冻结，隔离屏障系统可能是数字电容隔离屏障系统。这种破坏性事件的示例是在调制解调器波特率协商，向低功耗模式转换和在电话系统中摘机时的数据速率变化。在这些情况的每一种情况下，主电路预期中断并向隔离电路发送冻结信号。冻结信号指示隔离电路进入冻结模式，没有数据通过隔离系统发送。生成内部控制信号，用于在中断之后建立同步和成帧，并恢复隔离系统的正常运行。在优选实施例中，冻结周期的持续时间可以由计时器或通过检测系统中成帧锁定或瞬态的存在的电路来确定。本发明防止当隔离系统经历中断事件时传输错误的控制信号或损坏的数据。

9. 发明授权

US06198816B1 Capacitively coupled ring detector with power provided across isolation barrier 失效
标题翻译：电容耦合环形探测器，提供跨隔离屏障的电源
公开(公告)号：US06198816B1
公开(公告)日：2001-03-06
申请号：US09034428
申请日：1998-03-04
申请人： Jerrell P. Hein , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
发明人： Jerrell P. Hein , Jeffrey W. Scott , Navdeep S. Sooch , David R. Welland
IPC分类号： H04M1738
CPC分类号： H04L25/06 , H04L7/033 , H04L25/0266 , H04M1/573 , H04M11/06 , H04M19/001 , H04M19/02
摘要： A communication system is provided with a capacitive isolation barrier in which at least a portion of the ring detection circuits may be integrated into the line side circuitry. Moreover the ring detection circuits on the phone line side of the isolation barrier may be powered at least in part by power transmitted from the powered side of the isolation barrier to the phone line side of the isolation barrier through the barrier capacitors. A capacitive interface may directly connect the ringer circuitry on the phone line side of the barrier to the TIP/RING lines. The capacitive interface operates to linearly attenuate the TIP/RING signal voltage levels from the high phone line levels to levels within integrated circuit technology limitations.
摘要翻译：通信系统设置有电容隔离屏障，其中至少一部分环形检测电路可以集成到线路侧电路中。此外，隔离屏障的电话线路侧的环路检测电路可以至少部分地通过从隔离屏障的电源侧通过阻挡电容器传输到隔离屏障的电话线侧的功率供电。电容接口可以将屏障的电话线路上的振铃电路直接连接到TIP / RING线路。电容接口用于将TIP / RING信号电压电平从高电话线路电平线性衰减到集成电路技术限制内的电平。

10. 发明授权

US07190785B2 Subscriber line interface circuitry 有权
标题翻译：用户线接口电路
公开(公告)号：US07190785B2
公开(公告)日：2007-03-13
申请号：US10814862
申请日：2004-03-31
申请人： Jerrell P. Hein , Navdeep S. Sooch
发明人： Jerrell P. Hein , Navdeep S. Sooch
IPC分类号： H04M19/00
CPC分类号： H04M1/738 , H04M1/745 , H04M3/005 , H04M3/04 , H04M3/2272 , H04M19/00 , H04M19/005
摘要： Subscriber line interface circuitry includes an integrated circuit having sense inputs for a sensed tip signal and a sensed ring signal of a subscriber loop. The integrated circuit generates a subscriber loop linefeed driver control signal in response to the sensed signals. In one embodiment, A linefeed driver includes power circuitry for providing battery feed to the ring and tip nodes of the subscriber loop in accordance with the linefeed control signal. The linefeed driver includes sense circuitry providing a sensed tip signal and a sensed ring signal. The sensed tip and ring signals correspond to a tip current and a ring current of the subscriber loop. In one embodiment, the integrated circuit is a complementary metal oxide semiconductor (CMOS) integrated circuit. In one embodiment, the linefeed driver comprises only discrete components.
摘要翻译：用户线接口电路包括具有用于感测的尖端信号的感测输入和用户环路的感测振铃信号的集成电路。集成电路响应于感测信号产生用户环路线路馈送驱动器控制信号。在一个实施例中，线路馈送驱动器包括用于根据线路进给控制信号向用户环路的环和尖端节点提供电池馈电的电源电路。换行驱动器包括提供感测到的尖端信号和感测到的振铃信号的感测电路。感测到的尖端和振铃信号对应于用户回路的尖端电流和环形电流。在一个实施例中，集成电路是互补金属氧化物半导体（CMOS）集成电路。在一个实施例中，换行驱动器仅包括分立部件。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式