公开(公告)号：US07706748B2

公开(公告)日：2010-04-27

申请号：US11167010

申请日：2005-06-24

Applicant: Santanu Dutta

Inventor： Santanu Dutta

IPC: H04B7/185

CPC classification number: H04B7/18539 ,  H04B7/2041

Abstract: Methods are provided to operate a communications system including a satellite and a satellite gateway. In particular, a feeder link may be provided between the satellite and the satellite gateway over a feeder link frequency band for communication of information between the satellite gateway and the satellite. A service link may be provided between the satellite and at least one radioterminal in a coverage area of the satellite over a service link frequency band. Moreover, the feeder link and service link frequency bands may be different. In addition, a frequency segment of the feeder link may be linearly translated from the feeder link frequency band to the service link frequency band to provide a frequency segment of the service link. Related satellites are also discussed.

Abstract translation: 提供了用于操作包括卫星和卫星网关的通信系统的方法。 具体地，可以通过馈线链路频带在卫星和卫星网关之间提供馈线链路，用于卫星网关和卫星之间的信息通信。 可以在卫星与服务链路频带上的卫星的覆盖区域中的至少一个无线电终端之间提供服务链路。 此外，馈线链路和业务链路频带可能不同。 此外，馈线链路的频段可以从馈线链路频带线性地转换到服务链路频带，以提供服务链路的频率段。 还讨论了相关卫星。

公开(公告)号：US20080307231A1

公开(公告)日：2008-12-11

申请号：US12195485

申请日：2008-08-21

Applicant: Santanu Dutta ,  Nils Rydbeck

Inventor： Santanu Dutta ,  Nils Rydbeck

IPC: H04L9/06

CPC classification number: G06Q20/327 ,  G06Q20/045 ,  G06Q20/12 ,  G06Q20/32 ,  G06Q20/363 ,  G06Q20/367 ,  G06Q20/3672 ,  G06Q20/3674 ,  G06Q20/3676 ,  G06Q20/3678 ,  G07B15/00 ,  G07F7/0866 ,  G07F7/1016

Abstract: An approach to managing stored-value data objects, such as electronic tickets, comprises secure systems and procedures for ticket issuing, storage, and redemption. With these systems and procedures in place, stored-value data objects may be securely transferred to remote systems, such as a user's personal electronic device, for subsequent secure redemption, thus allowing the user to gain access to the desired goods or service upon redeeming the data object. Techniques provide secure delivery of the requested data object to the requesting device, and provide secure redemption and disposal of the data object. Ticket issuing systems may be Internet-accessible systems, and users may purchase and redeem tickets using mobile terminals or other devices adapted for wireless communication. Standardized WPKI and Internet access procedures may be employed in ticket issuance and redemption. Techniques further provide temporary and rapid verification data objects useful where rapid ticket verification is essential, such as mass transit systems.

Abstract translation: 管理存储值数据对象（例如电子票据）的方法包括用于发票，存储和兑换的安全系统和程序。 利用这些系统和程序，存储值数据对象可以被安全地传送到诸如用户的个人电子设备的远程系统，以便随后的安全兑换，从而允许用户在兑换所需的商品或服务时获得所需的商品或服务 数据对象。 技术提供所请求的数据对象到请求设备的安全传递，并且提供对数据对象的安全的兑换和处置。 票务发放系统可以是互联网可访问的系统，用户可以使用适用于无线通信的移动终端或其他设备购买和兑换票据。 标准化WPKI和互联网接入程序可用于发票和兑换。 技术进一步提供临时和快速的验证数据对象，其中快速验证是必不可少的，例如大众运输系统。

公开(公告)号：US20080147509A1

公开(公告)日：2008-06-19

申请号：US12037299

申请日：2008-02-26

Applicant: Angana Ghosh ,  Santanu Dutta

Inventor： Angana Ghosh ,  Santanu Dutta

IPC: G06Q20/00

CPC classification number: G06Q20/3278 ,  G06Q20/045 ,  G06Q20/105 ,  G06Q20/20 ,  G06Q20/204 ,  G06Q20/32 ,  G06Q20/322 ,  G06Q20/341 ,  G06Q20/4033 ,  G06Q20/4037 ,  G06Q30/0601 ,  G07F7/0886 ,  G07F7/1008

Abstract: A mobile terminal is enabled to conduct an EMV transaction. A wireless access node in the EMV card-reader terminal is provided for connecting a mobile terminal to the card-reader terminal. An EMV-proxy module executing in the card-reader terminal facilitates communication between the mobile terminal and the card-reader terminal. The EMV-proxy module lets the mobile terminal function in essentially the same way as a regular EMV chip card with respect to the card-reader terminal. The card-reader terminal may then conduct EMV transactions on behalf of the mobile terminal without requiring new software and/or hardware at the EMV issuer. EMV data is stored in the mobile terminal in the form of secure dynamic data objects. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract translation: 移动终端能够进行EMV交易。 提供EMV读卡器终端中的无线接入节点用于将移动终端连接到读卡器终端。 在读卡器终端中执行的EMV代理模块便于移动终端与读卡器终端之间的通信。 EMV代理模块使移动终端的功能基本上与普通EMV芯片卡相对于读卡器终端相同。 读卡器终端可以代表移动终端进行EMV交易，而不需要EMV发行者的新的软件和/或硬件。 EMV数据以安全动态数据对象的形式存储在移动终端中。

公开(公告)号：US07340213B2

公开(公告)日：2008-03-04

申请号：US10890758

申请日：2004-07-14

Applicant: Peter D. Karabinis ,  Santanu Dutta ,  Gary G. Churan ,  Dunmin Zheng

Inventor： Peter D. Karabinis ,  Santanu Dutta ,  Gary G. Churan ,  Dunmin Zheng

IPC: H04B7/185

CPC classification number: H04B7/1851

Abstract: A first radio signal is received via a first satellite reception path, for example, an antenna or spot beam, which serves a satellite cell. The received first radio signal includes a desired satellite uplink signal transmitted from a first source using a frequency assigned to the satellite cell and an interfering signal transmitted from at least one second source using the frequency assigned to the satellite cell. A second radio signal is received via a second satellite reception path, for example, via another antenna or spot beam of the system and/or via a satellite antenna beam of another system. The second radio signal includes a measure of the interfering signal. The first and second radio signals are processed to recover the desired satellite uplink signal.

Abstract translation: 经由第一卫星接收路径接收第一无线电信号，例如用于卫星小区的天线或点波束。 所接收的第一无线电信号包括使用分配给卫星小区的频率从第一源发送的期望的卫星上行链路信号和使用分配给卫星小区的频率从至少一个第二源发送的干扰信号。 经由第二卫星接收路径例如经由系统的另一个天线或点波束和/或经由另一系统的卫星天线波束接收第二无线电信号。 第二无线电信号包括干扰信号的测量。 处理第一和第二无线电信号以恢复所需的卫星上行链路信号。

公开(公告)号：US07337229B2

公开(公告)日：2008-02-26

申请号：US10010279

申请日：2001-11-08

Applicant: Santanu Dutta ,  Angana Ghosh

Inventor： Santanu Dutta ,  Angana Ghosh

IPC: G06F15/16

CPC classification number: H04L63/0853 ,  H04L63/126 ,  H04L63/18 ,  H04W12/06

Abstract: Method and apparatus for authorizing Internet transactions using the public land mobile network (PLMN). An association, or linking, of a mobile terminal to a transaction being made with a more traditional Internet access device such as a PC is provided using the resources of the public land mobile network (PLMN). The mobile terminal can in turn be used to provide authentication and/or authorization for the transaction. The link or coupling between the transaction documents or information sets presented on the two devices can be created by a service provider or merchant sending a WAP push message to the mobile terminal. Authentication and/or authorization can be provided using the client-side PKI capabilities of the wireless terminal, using a user ID and/or password, or through other means.

Abstract translation: 使用公共陆地移动网络（PLMN）授权互联网交易的方法和装置。 使用公共陆地移动网络（PLMN）的资源来提供移动终端与诸如PC之类的更传统的因特网接入设备的交易的关联或链接。 移动终端又可以用于为交易提供认证和/或授权。 在两个设备上呈现的交易文档或信息集之间的链接或耦合可以由服务提供商或商家向移动终端发送WAP推送消息来创建。 可以使用无线终端的客户端PKI能力，使用用户ID和/或密码，或通过其他方式来提供认证和/或授权。

公开(公告)号：US20070021059A1

公开(公告)日：2007-01-25

申请号：US11457881

申请日：2006-07-17

Applicant: Peter Karabinis ,  Santanu Dutta

Inventor： Peter Karabinis ,  Santanu Dutta

IPC: H04B7/185

CPC classification number: H04B7/185 ,  H04B7/18543

Abstract: A method of transmitting information in a wireless communications system can be provided by selectively applying filtering to transmission of a carrier signal of a first band of frequencies of a wireless communications system based on a frequency separation distance between a frequency content of the carrier signal and a second band of frequencies allocated to a communications system other than the wireless communications system.

Abstract translation: 可以通过基于载波信号的频率内容与载波信号之间的频率间隔距离选择性地对无线通信系统的第一频带频带的载波信号进行滤波来提供在无线通信系统中发送信息的方法 分配给除了无线通信系统之外的通信系统的第二频带。

公开(公告)号：US06879829B2

公开(公告)日：2005-04-12

申请号：US10828378

申请日：2004-04-20

Applicant: Santanu Dutta ,  Peter D. Karabinis

Inventor： Santanu Dutta ,  Peter D. Karabinis

IPC: H04B20060101 ,  H04B7/185 ,  H04W24/00 ,  H04W28/04 ,  H04W36/14 ,  H04W36/30 ,  H04W84/06 ,  H04Q7/20

CPC classification number: H04B7/18541 ,  H04W24/00 ,  H04W36/14 ,  H04W36/30 ,  H04W84/06

Abstract: A satellite communications system includes a satellite that is configured to wirelessly communicate with radioterminals in a satellite coverage area over a satellite frequency band, and an ancillary terrestrial component that is configured to wirelessly communicate with radioterminals in the satellite coverage area over at least some of the satellite frequency band, to thereby terrestrially reuse at least some of the satellite frequency band. Wireless communications with a radioterminal are handed over from the ancillary terrestrial component to the satellite if the radioterminal transmit power exceeds a threshold, and a received satellite signal quality exceeds a threshold, even though the radioterminal is able to wirelessly communicate with the ancillary terrestrial component. Downlink wireless radiation that is received at the radioterminal from a satellite may be monitored to determine potential interference created by the uplink radiation of the radioterminal due to the terrestrial reuse of at least some of the satellite frequency band.

Abstract translation: 一种卫星通信系统包括配置成通过卫星频带与卫星覆盖区域中的无线电终端进行无线通信的卫星，以及被配置为与卫星覆盖区域中的至少一些无线电通信无线通信的辅助地面组件 卫星频带，从而陆上重用至少一些卫星频带。 如果无线电终端发射功率超过阈值，并且接收的卫星信号质量超过阈值，即使无线电终端能够与辅助地面组件进行无线通信，则具有无线电终端的无线通信从辅助地面组件切换到卫星。 可以监测从卫星的无线电终端接收的下行链路无线辐射，以确定由于卫星频带的至少一部分的陆地再利用而由无线电终端的上行辐射产生的潜在干扰。

公开(公告)号：US6130887A

公开(公告)日：2000-10-10

申请号：US233068

申请日：1999-01-20

Applicant: Santanu Dutta

Inventor： Santanu Dutta

IPC: H04B7/185 ,  H04B7/212 ,  H03D3/02

CPC classification number: H04B7/18513

Abstract: In a communication system for communicating on at least one channel group, a demodulator is disclosed. The channel group has at least one forward channel and at least one return channel, where a central station transmits data over the forward channel to a plurality of terminals at a forward data rate, and transmissions by each terminal to the central station are performed on any one of the return channels at a return data rate. The demodulator comprises a burst demodulator that demodulates received, discrete signaling packets of information over the return channels. The demodulator also comprises a message demodulator that is responsively connected to the burst demodulator, such that when the message demodulator is activated, the burst demodulator becomes deactivated when the return channel operates in a messaging mode. Thus, a feature of the demodulator is that it is a dual function demodulator that functions either as a burst demodulator, or as a continuous or message demodulator. Switching to one or the other operational modes is controlled by a network management subsystem.

Abstract translation: 在用于在至少一个信道组上进行通信的通信系统中，公开了一种解调器。 信道组具有至少一个前向信道和至少一个返回信道，其中中心站以正向数据速率通过前向信道发送数据到多个终端，并且每个终端向中心站的传输是在任何 返回数据速率之一的返回通道之一。 解调器包括一个脉冲串解调器，它通过返回信道解调接收到的信号分组的信息分组。 解调器还包括响应地连接到突发解调器的消息解调器，使得当消息解调器被激活时，当返回信道在消息收发模式下操作时，突发解调器变为停用。 因此，解调器的特征在于它是一个双功能解调器，它既可用作突发解调器，也可用作连续或消息解调器。 切换到一个或另一个操作模式由网络管理子系统控制。

公开(公告)号：US5982761A

公开(公告)日：1999-11-09

申请号：US724120

申请日：1996-09-30

Applicant: Santanu Dutta

Inventor： Santanu Dutta

IPC: H04B7/185 ,  H04B7/212 ,  H04B7/26

CPC classification number: H04B7/18532 ,  H04B7/212

Abstract: Data transfer efficiencies of a frequency division and/or time division multiple access (FDMA/TDMA) communication systems are improved over prior art systems by distributing signalling and messaging activities over all return channels of a channel group, by varying forward to return channel data rate ratios, and by reducing message transport delays with respect to prior art communication systems, based on message traffic over such channel group. Return channels of a defined channel group are time division controlled and are generic to operate either in a signalling mode or in a messaging mode. Data rates for the forward channel and the return channels may be selected from predefined combinations of forward and return channel data rates. Message transport delays are reduced over prior art delay periods by reducing the frame lengths of data frames transmitted at a specified frame rate over the forward channel and by transmitting network management data other than time-critical data reception results and time slot allocations periodically at a superframe rate which is less than the frame rate.

公开(公告)号：US5953319A

公开(公告)日：1999-09-14

申请号：US536719

申请日：1995-09-29

Applicant: Santanu Dutta ,  David W. Best ,  Dennis W. Sutherland ,  Thomas A. Trebs

Inventor： Santanu Dutta ,  David W. Best ,  Dennis W. Sutherland ,  Thomas A. Trebs

IPC: H04B7/00 ,  H04J1/06

CPC classification number: H04W72/02 ,  H04W48/18 ,  H04W88/06

Abstract: A packet switched multi-mode mobile communication network and fixed and mobile devices for use therewith are disclosed. Each of the mobile vehicle equipment and a base station packet switch are coupled to respective data terminal equipment which generates packet data messages. The packet data messages have message characteristics associated therewith. Each of the mobile vehicle equipment and the base station packet switch have an intelligent switching node incorporated therein for selecting which of a plurality of radio frequency transmission paths to use in transmitting the packet data message to the other of the mobile vehicle equipment and the base station packet switch. Each of the plurality of radio frequency transmission paths has transmission path characteristics associated therewith. The intelligent switching nodes select the radio frequency transmission path as a function of the message characteristics of the packet data message and as a function of the transmission path characteristics of the plurality of radio frequency transmission paths.