公开(公告)号：US06407986B1

公开(公告)日：2002-06-18

申请号：US09233067

申请日：1999-01-20

Applicant: Santanu Dutta

Inventor： Santanu Dutta

IPC: H04B7212

CPC classification number: H04B7/18513

Abstract: A method of communicating on at least one channel group of a communication system provides improved data transfer efficiencies over conventional systems by using discrete transfer rates. The channel group is includes at least one forward channel for channeling data transmitted from a central station to a plurality of terminals. At least one return channel is included for channeling transmissions by any of the plurality of terminals to the central station. Changes in the discrete data transfer rate are optionally accompanied by a change in a slot timing rate based on a frame transmission rate used over the forward channel. The method also allows the assignment of a predetermined number of return channel slots for a transmit frame for at least one combination of forward and return channels having prescribed forward and return data rates.

Abstract translation: 在通信系统的至少一个信道组上通信的方法通过使用离散传输速率提供了超过常规系统的改进的数据传输效率。 信道组包括用于将从中心站发送的数据传送到多个终端的至少一个前向信道。 包括至少一个返回信道用于将多个终端中的任何终端的传输引导到中心站。 离散数据传输速率的变化可选地伴随着基于在前向信道上使用的帧传输速率的时隙定时速率的改变。 该方法还允许为具有规定的前向和返回数据速率的前向和返回信道的至少一个组合的发送帧分配预定数量的返回信道时隙。

公开(公告)号：US06381289B1

公开(公告)日：2002-04-30

申请号：US09145105

申请日：1998-09-01

Applicant: Santanu Dutta

Inventor： Santanu Dutta

IPC: H03D300

CPC classification number: H04B7/2643 ,  H04J3/0605 ,  H04L27/30

Abstract: A method of demodulating a communication signal is provided. The communication signal includes a plurality of pages with each page having a plurality of addresses and corresponding data packets. The demodulating method includes the steps of receiving the communication signal at a user terminal, identifying which of the plurality of pages are destined to the receiving user terminal, identifying which of the plurality of data packets within the identified page are destined to the receiving user terminal, and demodulating only the data packets identified as being destined to the receiving user terminal.

Abstract translation: 提供一种解调通信信号的方法。 通信信号包括多个页面，每个页面具有多个地址和对应的数据分组。 解调方法包括以下步骤：在用户终端处接收通信信号，识别多个页面中的哪个页面发往接收用户终端，识别所识别的页面中的多个数据分组中哪一个发往接收用户终端 并且仅解调识别为发往接收用户终端的数据分组。

公开(公告)号：US5982813A

公开(公告)日：1999-11-09

申请号：US723406

申请日：1996-09-30

Applicant: Santanu Dutta ,  Richard J. Mahany

Inventor： Santanu Dutta ,  Richard J. Mahany

IPC: H04B7/005 ,  H04L1/00 ,  H04B1/38

CPC classification number: H04W52/267 ,  H04L1/0003 ,  H04L1/0017 ,  H04L1/0019 ,  H04L1/0025 ,  H04W52/20

Abstract: In a communication system in which a transmitter transmits data over a communication channel of a fixed bandwidth to a receiver, the method according to which the transmit data rate is continuously adjusted to a rate which is substantially equal to a short-term average data rate. The channel capacity and/or other characteristics of the system, is continuously adjusted, through changes in transmit power, symbol rate and modulation format, to a level at which the ratio of received signal energy per bit to noise spectral density (E.sub.b /N.sub.o) at the receiver is close to but above its minimum acceptable level, thereby matching the channel capacity and/or other characteristics of the system to the traffic. The system has further attributes which adjust the transmit data rate responsive to conditions involving at least one of data traffic levels, power reserve emergency, thermal load and message priority.

Abstract translation: 在发送机通过固定带宽的通信信道向接收机发送数据的通信系统中，将发送数据速率连续调整为基本等于短期平均数据速率的速率的方法。 通过发射功率，符号率和调制格式的变化，将系统的信道容量和/或其他特性连续地调整到每比特的接收信号能量与噪声频谱密度（Eb / No）的比率， 在接收器处接近但高于其最小可接受水平，从而将系统的通道容量和/或其他特性与流量相匹配。 该系统具有进一步的属性，其响应于涉及数据业务级别，动力储存紧急，热负载和消息优先级中的至少一个的条件来调整发送数据速率。

公开(公告)号：US20240137109A1

公开(公告)日：2024-04-25

申请号：US18445636

申请日：2023-12-01

Applicant: Santanu Dutta

Inventor： Santanu Dutta

IPC: H04B7/185

CPC classification number: H04B7/18515 ,  H04B7/18513

Abstract: Methods and systems for low earth orbit satellite communications, utilizing fractionated satellites and constellations with large baselines. The latter, combined with spatial multiplexing protocols, provides access to user equipment on the ground with much greater spatial resolution than hitherto possible. Methods include overcoming the problem posed by the round-trip delay of satellite links when adaptive, downlink, beamforming is attempted in Frequency Division Duplex (FDD) systems. Methods include using of uplink and downlink pilot signals which eliminate the need for controlling the physical integrity of the fractionated satellite through an electromechanical servo-control system in space.

公开(公告)号：US08411751B2

公开(公告)日：2013-04-02

申请号：US12637774

申请日：2009-12-15

Applicant: Elif Albuz ,  Tarik Arici ,  Robert Jan Schutten ,  Santanu Dutta

Inventor： Elif Albuz ,  Tarik Arici ,  Robert Jan Schutten ,  Santanu Dutta

IPC: H04N7/18

CPC classification number: H04N5/145 ,  H04N7/0127

Abstract: A method includes projecting motion vectors describing a transformation from a previous video frame to a future video frame onto a plane between the previous video frame and the future video frame, detecting potential artifacts at the plane based on an intersection of a cover region and an uncover region on the plane, and analyzing a dissimilarity between a trial video frame and both the previous video frame and the future video frame. The trial video frame is generated between the previous video frame and the future video frame based on a frame rate conversion ratio derived from a source frame rate and a desired frame rate. The method also includes estimating reliability of the projected motion vectors based on the potential artifact detection and the dissimilarity analysis.

Abstract translation: 一种方法包括将描述从先前视频帧到未来视频帧的变换的运动矢量投影到先前视频帧和未来视频帧之间的平面上，基于覆盖区域和发现的交集来检测平面处的潜在伪影 区域，并且分析试验视频帧与先前的视频帧和将来的视频帧之间的不相似性。 基于从源帧率和期望帧速率导出的帧速率转换比，在先前视频帧和未来视频帧之间生成试用视频帧。 该方法还包括基于潜在神经检测和不相似性分析来估计投影运动矢量的可靠性。

公开(公告)号：US08151329B2

公开(公告)日：2012-04-03

申请号：US11941325

申请日：2007-11-16

Applicant: Santanu Dutta ,  Nils Rydbeck

Inventor： Santanu Dutta ,  Nils Rydbeck

IPC: G06F7/04

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：US20110256849A1

公开(公告)日：2011-10-20

申请号：US13102718

申请日：2011-05-06

Applicant: Santanu Dutta

Inventor： Santanu Dutta

IPC: H04W12/00

CPC classification number: H04W8/12 ,  H04B7/18545 ,  H04B7/18563

Abstract: Communications of a mobile station with a satellite mobile communications system and a terrestrial mobile communications system are coordinated. The mobile station is registered with the terrestrial mobile communications system and, responsive to the registration of the mobile station with the terrestrial mobile communications system, the mobile station is concurrently registered with the satellite mobile communications system. The concurrent registration may include implicitly registering the mobile station with the satellite mobile communications system, e.g., by storing information identifying the mobile station may be stored in a location register of the satellite mobile communications system responsive to the registration of the mobile station with the terrestrial mobile communications system, and maintaining synchronization between the two registrations. Authentication tokens may be pre-generated for quick re-registration with a satellite mobile communications system.

公开(公告)号：US20110141240A1

公开(公告)日：2011-06-16

申请号：US12637767

申请日：2009-12-15

Applicant: Santanu Dutta ,  Gerrit Ary Slavenburg ,  David R. Cook

Inventor： Santanu Dutta ,  Gerrit Ary Slavenburg ,  David R. Cook

IPC: H04N13/02 ,  H04N13/04

CPC classification number: H04N13/133 ,  H04N13/128 ,  H04N13/144 ,  H04N13/334 ,  H04N2213/002

Abstract: A method includes reducing a red rivalry through adjusting a color temperature on a first image, converting the first image from the RGB domain to a YCbCr domain, shifting a hue of a red color in the first image towards a magenta color to reduce a red color vibrancy, and adjusting a blue color in the first image such that a dark blue visible through a second lens corresponding to a second image is at least partially visible through a first lens corresponding to the first image. The method also includes reducing the red rivalry through adjusting a tone of the red color in the first image towards a brown color, converting the first image from the YCbCr domain back to the RGB domain, adjusting a color saturation in the first image, and combining the first image with the second image in a processor to generate an anaglyph image.

Abstract translation: 一种方法包括通过调节第一图像上的色温来减少红色对比，将第一图像从RGB域转换为YCbCr域，将第一图像中的红色色调转移到品红色以减少红色 并且调节第一图像中的蓝色，使得通过对应于第二图像的第二透镜可见的深蓝色通过对应于第一图像的第一透镜至少部分可见。 该方法还包括通过将第一图像中的红色调调到棕色来减少红色对比，将第一图像从YCbCr域转换回RGB域，调整第一图像中的色彩饱和度，以及组合 在处理器中具有第二图像的第一图像以生成浮雕图像。

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。