知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

28 records (took 0.017 seconds)

    DBMsOL and FBMsOL power spectral density masks
    4.
    发明授权
    DBMsOL and FBMsOL power spectral density masks 失效
    DBMsOL和FBMsOL功率谱密度掩模

    公开(公告)号：US07633999B2

    公开(公告)日：2009-12-15

    申请号：US10626714

    申请日：2003-07-25

    Applicant: Patrick Duvaut ,  Massimo Sorbara

    Inventor： Patrick Duvaut ,  Massimo Sorbara

    IPC: H04B1/38

    CPC classification number: H04L5/0048 ,  H04L5/0046 ,  H04L5/143 ,  H04L5/1438 ,  H04L5/16 ,  H04L12/66 ,  H04L25/0286 ,  H04L25/03834 ,  H04L27/2608 ,  H04L27/2655 ,  H04L27/2656 ,  Y02D30/34

    Abstract: In accordance with one embodiment of the present invention, a power spectral density (PSD) mask for spectral shaping of a dual bit map (DBM) mode downstream transmission is provided. The PSD mask is represented by the equation: PSD DBMsOL = K ADSL_OL × C f 0 × [ sin ⁡ ( π ⁢ f f 0 ) ] 2 ( π ⁢ f f 0 ) 2 × 1 1 + ( f f LP3dB ) 12 × 1 1 + ( f HP3dB f ) 6 , 0 ≺ f ≺ ∞ where PSDDBMsOL represents the PSD mask, KADSL—OL represents a constant value, C represents a constant value, f represents a frequency of the downstream transmission, f0 represents a constant value, fLP3dB represents a 3 decibel (dB) low pass frequency and ffHP3dB represents a 3 dB high pass frequency. KADSL—OL preferably has a value between 0.0900 watts and 0.1200 watts and more preferably has a value of 0.1104 watts. The constant f0 preferably has a value between 2.100 megahertz and 2.300 megahertz and more preferably has a value of 2.208 megahertz. The constant fLP3dB has a value substantially equal to f 0 2 . The constant fHP3dB has preferably has a value between 100 kilohertz and 150 kilohertz and more preferably has a value of 130 kilohertz. The constant C preferably has a value between 0.1 and 10 and more preferably has a value of 2.

    Abstract translation: 根据本发明的一个实施例，提供了用于双位图（DBM）模式下行传输的频谱整形的功率谱密度（PSD）掩模。 PSD掩模由以下等式表示：PSD DBMsOL = K ADSL_OL x C f 0 x [sin⁡（piff 0）] 2（piff 0）2 x 1 1 +（ff LP3dB）12 x 1 1 + （f HP3dB f）6,0 f∞其中PSDDBMsOL表示PSD掩码，KADSL-OL表示常数值，C表示常数值，f表示下行传输的频率，f0表示常数值，fLP3dB表示3 分贝（dB）低通频率，ffHP3dB表示3 dB高通频率。 KADSL-OL优选地具有在0.0900瓦特和0.1200瓦之间的值，更优选地具有0.1104瓦的值。 常数f0优选地具有在2.100兆赫兹和2.300兆赫兹之间的值，更优选地具有2.208兆赫的值。 常数fLP3dB具有基本上等于f 0 2的值。 恒定fHP3dB优选地具有在100千赫兹和150千赫兹之间的值，更优选地具有130千赫兹的值。 常数C的值优选为0.1〜10，更优选为2。

    HTU-C clocking from a single source
    6.
    发明授权
    HTU-C clocking from a single source 有权
    HTU-C从单一来源启动

    公开(公告)号：US06373887B1

    公开(公告)日：2002-04-16

    申请号：US09738750

    申请日：2000-12-14

    Applicant: Sanjay K. Aiyagari ,  Mick Henniger

    Inventor： Sanjay K. Aiyagari ,  Mick Henniger

    IPC: H04B138

    CPC classification number: H04L27/0014 ,  H04J3/0685 ,  H04L25/4927 ,  H04L2027/0036 ,  H04L2027/0055 ,  Y02D30/34

    Abstract: An apparatus and method are provided for generating a plurality of data frames in a DSL modem configured as an HTU-C device using a single clock source. The technique of the present invention generates a data clock signal by combining a first clock signal provided by a clock source and a receiver overhead signal provided by framing circuitry for indicating the insertion of frame overhead bits into a data frame. The generated data clock signal has the characteristics such that, while the receiver overhead signal is inactive, the data clock signal is active at a frequency substantially equal to frequency of the first clock signal, and while the receiver overhead signal is active, the data clock signal is inactive. The result of this technique is that incoming data is clocked into the data frame at a data rate substantially equal to the frequency of the first clock signal only during time intervals when frame overhead bits are not being inserted into the one data frame. By using a single clock source to provide both the data rate and signaling rate, a reduction in cost, space, complexity, and power consumption of the HTU-C device may be achieved as compared to conventional devices.

    Abstract translation: 提供了一种装置和方法，用于在配置为使用单个时钟源的HTU-C设备的DSL调制解调器中生成多个数据帧。 本发明的技术通过组合由时钟源提供的第一时钟信号和由成帧电路提供的接收机开销信号来产生数据时钟信号，以指示帧开销比特插入到数据帧中。 所生成的数据时钟信号具有这样的特性，使得在接收机开销信号不活动的情况下，数据时钟信号以基本上等于第一时钟信号的频率的频率起作用，而当接收器开销信号有效时，数据时钟 信号无效。 该技术的结果是，仅在帧开销比特未被插入到一个数据帧中的时间间隔期间，输入数据以基本上等于第一时钟信号的频率的数据速率被计时到数据帧。 通过使用单个时钟源来提供数据速率和信令速率，与常规设备相比，可以实现HTU-C设备的成本，空间，复杂性和功耗的降低。

    Method and Apparatus For Requesting A Connection In A Cellular Communication Network
    8.
    发明申请
    Method and Apparatus For Requesting A Connection In A Cellular Communication Network 审中-公开
    用于在蜂窝通信网络中请求连接的方法和装置

    公开(公告)号：US20110306332A1

    公开(公告)日：2011-12-15

    申请号：US13062477

    申请日：2009-07-17

    Applicant: Ian Macpherson

    Inventor： Ian Macpherson

    IPC: H04W88/00

    CPC classification number: H04L41/0806 ,  H04W4/18 ,  H04W16/16 ,  H04W76/11 ,  H04W88/08 ,  Y02D30/34

    Abstract: A network element comprises a management logic module and a translator service logic module arranged to be operably coupled to each of: a communication access point via a first communication link, an auto configuration server (ACS) logic module via a second communication link, and an Element Management System (EMS) associated with the communication access point via a third communication link. The translator service logic module is arranged to receive a connection request from the ACS logic module and transmit the connection request to the communication access point via the first communication link.

    Abstract translation: 网络元件包括管理逻辑模块和翻译器服务逻辑模块，其被布置为经由第一通信链路，自动配置服务器（ACS）逻辑模块经由第二通信链路可操作地耦合到以下各项：通信接入点，以及 通过第三通信链路与通信接入点相关的元件管理系统（EMS）。 翻译器服务逻辑模块被布置为从ACS逻辑模块接收连接请求，并经由第一通信链路将连接请求发送到通信接入点。

    Reduced SNR handshake signaling in ADSL systems
    9.
    发明申请
    Reduced SNR handshake signaling in ADSL systems 审中-公开
    降低ADSL系统中的信号握手信号

    公开(公告)号：US20040141550A1

    公开(公告)日：2004-07-22

    申请号：US10626727

    申请日：2003-07-25

    Inventor： Patrick Duvaut ,  Massimo Sorbara ,  Laurent Francis Alloin

    IPC: H04L005/16

    CPC classification number: H04L5/0048 ,  H04L5/0046 ,  H04L5/143 ,  H04L5/1438 ,  H04L5/16 ,  H04L12/66 ,  H04L25/0286 ,  H04L25/03834 ,  H04L27/2608 ,  H04L27/2655 ,  H04L27/2656 ,  Y02D30/34

    Abstract: In an asynchronous digital subscriber line (ADSL) system comprising a central office ADSL Terminating Unit (ATU-C) in bi-directional overlap spectrum discrete multitone (DMT) communication with a remote ADSL Terminating Unit (ATU-R), a method is provided in accordance with the present invention. The method comprises the step of transmitting a first handshake tone at either a first DMT tone or a second DMT tone based at least in part on a distance between the ATU-C and ATU-R. In one embodiment, the first handshake tone is transmitted at the first DMT tone when the distance between the ATU-C and ATU-R is less than 6.2 kilometers and the first handshake tone is transmitted at the second DMT tone when the distance between the ATU-C and ATU-R is greater than or equal to 6.2 kilometers.

    Abstract translation: 在具有与远程ADSL终端单元（ATU-R）的双向重叠频谱离散多音（DMT）通信中的中心局ADSL终端单元（ATU-C）的异步数字用户线路（ADSL）系统中，提供了一种方法 根据本发明。 该方法包括至少部分地基于ATU-C和ATU-R之间的距离以第一DMT音调或第二DMT音调发送第一握手音调的步骤。 在一个实施例中，当ATU-C和ATU-R之间的距离小于6.2公里时，以第一DMT音调发送第一握手音，并且当ATU之间的距离为第二DMT音时发送第一握手音 -C和ATU-R大于或等于6.2公里。

Patent Agency Ranking