公开(公告)号：US20080192410A1

公开(公告)日：2008-08-14

申请号：US11568342

申请日：2005-05-05

申请人： Rajendra Kumar

发明人： Rajendra Kumar

IPC分类号： H05K5/02

CPC分类号： G06F1/1632 ,  G06F1/1615 ,  G06F1/1626 ,  G06F1/1662 ,  H04M1/72527

摘要： The invention relates to a peripheral unit system that provides a universally usable system for adding peripheral functions to off-the-shelf handheld host devices of variable size and configuration. The system and methods according to the invention allow adaptation to variably sized handheld host devices without the need to customize the peripheral unit to the host device. The invention provides added functionality such as increased ruggedness and durability, while providing an integrated system in association with a handheld host device, to provide the convenience of a one-piece form-factor, without sacrificing universality of the solution. The peripheral unit comprises a housing having a portion configured to engage with a handheld host device of various sizes and electrical configurations. An attachment mechanism is associated with the housing, being used to selectively secure the housing to the handheld host device to form a one-piece apparatus suitable for handheld use. The attachment mechanism is secured to the host device by selective adjustment of the size to adapt to a host device. In addition, the peripheral unit may provide a universal connection to at least one electrical connector of the host device, to provide added input-output functions to the operation of the combined system.

摘要翻译： 本发明涉及一种外围单元系统，其提供了一种普遍可用的系统，用于将外围功能添加到可变大小和配置的现成的手持式主机设备。 根据本发明的系统和方法允许适应可变大小的手持式主机设备，而不需要将外围单元定制到主机设备。 本发明提供附加的功能，例如增加的耐用性和耐用性，同时提供与手持主机设备相关联的集成系统，以提供一体式的便利性，而不牺牲解决方案的普遍性。 外围单元包括具有配置成与各种尺寸和电气配置的手持主机设备接合的部分的外壳。 附接机构与壳体相关联，用于将壳体选择性地固定到手持主机设备以形成适合于手持使用的单件式设备。 通过选择性地调节大小以适应主机设备，将附件机构固定到主机设备。 此外，外围单元可以提供与主机设备的至少一个电连接器的通用连接，以向组合系统的操作提供附加的输入 - 输出功能。

公开(公告)号：US20070142079A1

公开(公告)日：2007-06-21

申请号：US11539373

申请日：2006-10-06

申请人： Rajendra Kumar

发明人： Rajendra Kumar

IPC分类号： H04M1/00

CPC分类号： H04M1/0256 ,  B60R11/0252 ,  B60R2011/0029 ,  B60R2011/0071 ,  G06F1/1626 ,  G06F1/1632 ,  G06F1/1656 ,  H04M1/72527

摘要： The present invention relates in general to portable processor based devices that provide computing, communication or entertainment functionality. More particularly, the present invention pertains to portable processor based devices operable while being held in its user's hand and providing communications, organizer and/or entertainment functions, such as cellular telephones, palm-sized organizers, and MP3 players, and to portable processor based devices providing general computing capabilities, such as laptop or handheld personal computers (PCs). More specifically, the present invention relates to systems that detachably mate a plurality of portable processor based devices to provide their combined functionality in an integrated structure.

摘要翻译： 本发明一般涉及提供计算，通信或娱乐功能的基于便携式处理器的设备。 更具体地，本发明涉及基于便携式处理器的设备，其可操作在被保持在其用户的手中并且提供通信，组织者和/或娱乐功能，诸如蜂窝电话，掌上型组织器和MP3播放器，以及基于便携式处理器 提供通用计算能力的设备，例如膝上型或手持式个人计算机（PC）。 更具体地，本发明涉及可拆卸地配合多个基于便携式处理器的设备以在其集成结构中提供其组合功能的系统。

公开(公告)号：US07200402B2

公开(公告)日：2007-04-03

申请号：US09898572

申请日：2001-07-03

申请人： John G. Apostolopoulos ,  Sujoy Basu ,  Gene Cheung ,  Rajendra Kumar ,  Sumit Roy ,  Wai-tan Tan ,  Susie J. Wee ,  Tina Wong ,  Bo Shen

发明人： John G. Apostolopoulos ,  Sujoy Basu ,  Gene Cheung ,  Rajendra Kumar ,  Sumit Roy ,  Wai-tan Tan ,  Susie J. Wee ,  Tina Wong ,  Bo Shen

IPC分类号： H04Q7/20

CPC分类号： H04W36/18 ,  H04B7/022 ,  H04L25/4919 ,  H04W36/08

摘要： A method for performing a soft-handoff in a mobile streaming media system, and a method for performing a hard-handoff in a mobile streaming media system are is disclosed. In the soft-handoff embodiment, the present invention detects that a channel quality between a mobile client and a first base station remains above a drop threshold and that a channel quality between the mobile client and a second base station increases from below to above an add threshold. The present embodiment then sends a first multiple description bitstream from the first base station to the mobile client and sends a complementary second multiple description bitstream from the second base station to the mobile client. This method thereby provides improved utilization of wireless bandwidth during soft-handoffs, in contrast to conventional systems where the same bitstream is transmitted from each base station. In both the cases of soft-handoffs and hard-handoffs, when a mobile client enters a cell whose base station has no free capacity, the base station may prevent call dropping by reducing the number of descriptions being served to the existing clients and thereby providing capacity (at least one description) for the new client. These methods provide improved utilization of wireless bandwidth during soft-handoffs, and reduced probability of service disruption during both soft-handoffs and hard-handoffs.

摘要翻译： 公开了一种用于在移动流媒体系统中执行软切换的方法，以及用于在移动流媒体系统中执行硬切换的方法。 在软切换实施例中，本发明检测到移动客户端与第一基站之间的信道质量保持高于丢弃阈值，并且移动客户端与第二基站之间的信道质量从下至上增加 阈。 本实施例然后将第一多个描述比特流从第一基站发送到移动客户端，并将互补的第二多个描述比特流从第二基站发送到移动客户端。 因此，与从每个基站发送相同比特流的常规系统相比，该方法从而提供了在软切换期间无线带宽的改进的利用。 在软切换和硬切换的情况下，当移动客户端进入其基站没有可用容量的小区时，基站可以通过减少向现有客户端提供的描述的数量来防止呼叫丢弃，从而提供 新客户端的容量（至少一个描述）。 这些方法在软切换期间提供了无线带宽的改进的利用，并且在软切换和硬切换期间降低了服务中断的概率。

公开(公告)号：US20060105804A1

公开(公告)日：2006-05-18

申请号：US11305996

申请日：2005-12-19

申请人： Rajendra Kumar

发明人： Rajendra Kumar

IPC分类号： H04M1/00

CPC分类号： H04M1/0256 ,  B60R11/0252 ,  B60R2011/0029 ,  B60R2011/0071 ,  G06F1/1626 ,  G06F1/1632 ,  G06F1/1656 ,  H04M1/72527

摘要： The present invention relates in general to portable processor based devices that provide computing, communication or entertainment functionality. More particularly, the present invention pertains to portable processor based devices operable while being held in its user's hand and providing communications, organizer and/or entertainment functions, such as cellular telephones, palm-sized organizers, and MP3 players, and to portable processor based devices providing general computing capabilities, such as laptop or handheld personal computers (PCs). More specifically, the present invention relates to systems that detachably mate a plurality of portable processor based devices to provide their combined functionality in an integrated structure.

公开(公告)号：US20050276335A1

公开(公告)日：2005-12-15

申请号：US10864201

申请日：2004-06-09

申请人： Rajendra Kumar

发明人： Rajendra Kumar

IPC分类号： H03H17/02 ,  H04L5/06 ,  H04L27/28

CPC分类号： H04L5/06 ,  H03H17/0213 ,  H03H17/0273

摘要： A computation efficient polyphase channelization system enables one of many user FDMA signals to be channelized through multiple FFT response frequency bands forming an aggregate frequency band where K-point FFT channels are greater than the decimation factor M to produce FFT overlapped responses that have a smooth aggregate response without disjointed band gaps for reduced distortion using a clockwise commutator having M channels feeding M filter blocks, each of which having β polyphase filters, and having a ring switch to provide smooth filter responses that then drive β K-point FFTs to provide a β set of K vector FFT responses that are then combined in a post processing system for producing K channelized outputs.

摘要翻译： 计算有效的多相信道化系统使得许多用户FDMA信号中的一个可以通过形成K点FFT信道大于抽取因子M的聚合频带的多个FFT响应频带被信道化，以产生具有平滑聚合的FFT重叠响应 使用具有M个通道的顺时针换向器的不相干带隙的响应，其馈送M个滤波器块，每个滤波器块具有β多相滤波器，并且具有环形开关以提供平滑的滤波器响应，然后驱动βK点FFT以提供β 一组K向量FFT响应，然后在用于产生K个信道化输出的后处理系统中组合。

公开(公告)号：US20050261020A1

公开(公告)日：2005-11-24

申请号：US11189142

申请日：2005-07-26

申请人： Rajendra Kumar

发明人： Rajendra Kumar

IPC分类号： G04G11/00 ,  G04G19/00 ,  H04B1/40 ,  H04M1/65 ,  H04M1/656

CPC分类号： G04G11/00 ,  G04G19/00 ,  H04M1/6505 ,  H04M1/656 ,  H04M1/72502

摘要： A portable device (10) for selective message recordation and playback and scheduling includes a portable unit (11) and an optional homebase station (12). Portable unit (11) includes a housing (15), unit controller (20), tactile input mechanism (40) audio processor (60) and video processor (80). Portable unit (11) allows textual, audible and visual message inputs and their selective playback based on time or other preselected textual, audible or visual stimulus. A selectively detachable stylus (51) may be removed to engage a touch panel (50) for making operational selections and entering information. Optional homebase station (12) may include a variety of features for supporting and supplementing those of handheld unit (11), such as a floppy drive (112) message memory, input keys (114), a battery charging circuit (115) and an external communication circuit (117).

摘要翻译： 用于选择性消息记录和回放和调度的便携式设备（10）包括便携式单元（11）和可选的本地基站（12）。 便携式单元（11）包括壳体（15），单元控制器（20），触觉输入机构（40）音频处理器（60）和视频处理器（80）。 便携式单元（11）允许基于时间或其他预选的文本，声音或视觉刺激的文本，声音和视觉信息输入及其选择性播放。 可以移除可选择性地拆卸的触笔（51）以接合用于进行操作选择和输入信息的触摸面板（50）。 可选的本地基站（12）可以包括用于支持和补充手持单元（11）的各种特征，诸如软盘驱动器（112）消息存储器，输入键（114），电池充电电路（115）和 外部通信电路（117）。

公开(公告)号：US06961004B2

公开(公告)日：2005-11-01

申请号：US09883463

申请日：2001-06-15

申请人： Rajendra Kumar

发明人： Rajendra Kumar

IPC分类号： G04G11/00 ,  G04G19/00 ,  H04M1/65 ,  H04M1/656 ,  H04Q1/00

CPC分类号： H04M1/6505 ,  G04G11/00 ,  G04G19/00 ,  H04M1/656

摘要： A portable device (10) for selective message recordation and playback and scheduling includes a portable unit (11) and an optional homebase station (12). Portable unit (11) includes a housing (15), unit controller (20), tactile input mechanism (40), audio processor (60) and video processor (80). Portable unit (11) allows textual, audible and visual message inputs and their selective playback based on time or other preselected textual, audible or visual stimulus. A selectively detachable stylus (51) may be removed to engage a touch panel (50) for making operational selections and entering information. Optional homebase station (12) may include a variety of features for supporting and supplementing those of handheld unit (11), such as a floppy drive (112) message memory, input keys (114), a battery charging circuit (115) and an external communication circuit (117).

摘要翻译： 用于选择性消息记录和回放和调度的便携式设备（10）包括便携式单元（11）和可选的本地基站（12）。 便携式单元（11）包括壳体（15），单元控制器（20），触觉输入机构（40），音频处理器（60）和视频处理器（80）。 便携式单元（11）允许基于时间或其他预选的文本，声音或视觉刺激的文本，声音和视觉信息输入及其选择性播放。 可以移除可选择性地拆卸的触笔（51）以接合用于进行操作选择和输入信息的触摸面板（50）。 可选的本地基站（12）可以包括用于支持和补充手持单元（11）的各种特征，诸如软盘驱动器（112）消息存储器，输入键（114），电池充电电路（115）和 外部通信电路（117）。

公开(公告)号：US20050195770A1

公开(公告)日：2005-09-08

申请号：US11067968

申请日：2005-02-28

申请人： Roshan Baliga ,  Rahul Garg ,  Rajendra Kumar

发明人： Roshan Baliga ,  Rahul Garg ,  Rajendra Kumar

IPC分类号： H04B1/69 ,  H04B7/216

CPC分类号： H04L7/10 ,  H04B1/7073

摘要： A system for receiving and handling a scrambled input data signal that includes a preamble with a start of frame delimiter (SFD) initiates an SFD search on the scrambled input data, thereby attempting to save an initialization period. The initialization period may be of the order of 7 μS, and its saving results in improved timeline management enabling antenna diversity and the possible use of high performance algorithms. The system may use two parallel paths for signal processing, each having an SFD detector and a descrambler. If the detected SFD is short, then the second path is disabled, and if it is long, then the first parallel path is disabled. Alternatively, the first path can be used for a finite period of time (for e.g., 40 symbols) and if the SFD is still not detected, the first path is disabled, and the system uses only the second path.

摘要翻译： 用于接收和处理包括具有帧定界符（SFD）开始的前同步码的加扰输入数据信号的系统启动对加扰输入数据的SFD搜索，从而尝试保存初始化周期。 初始化时间可以是7μs的量级，并且其节省结果是改善了时间线管理，从而实现了天线分集和可能使用高性能算法。 系统可以使用两个并行路径进行信号处理，每个路径都有一个SFD检测器和一个解扰器。 如果检测到的SFD短，则禁用第二条路径，如果长度不等，则第一条并行路径被禁用。 或者，第一路径可以用于有限的时间段（例如，40个符号），并且如果尚未检测到SFD，则禁用第一路径，并且系统仅使用第二路径。

公开(公告)号：US06374331B1

公开(公告)日：2002-04-16

申请号：US09223469

申请日：1998-12-30

申请人： Gopalakrishnan Janakiraman ,  Tsen-Gong Jim Hsu ,  Padmanabha I. Venkitakrishnan ,  Rajendra Kumar

发明人： Gopalakrishnan Janakiraman ,  Tsen-Gong Jim Hsu ,  Padmanabha I. Venkitakrishnan ,  Rajendra Kumar

IPC分类号： G06F1200

CPC分类号： G06F12/0817 ,  G06F12/0813 ,  G06F2212/2542

摘要： A network of integrated communication switches and coherence controllers is provided which interconnected nodes in a cache-coherent multi-processor computer architecture. The nodes contain multiple processors operatively connected to associated memory units through memory controllers. The communication switches and coherence controllers has associated coherence directories which maintain coherence information for all memory lines that are “homed” in the nodes that are directly connected to the particular communication switch and coherence controller.

摘要翻译： 提供了一种集成通信交换机和一致性控制器的网络，其中高速缓存一致的多处理器计算机架构中的互连节点。 节点包含通过存储器控制器可操作地连接到相关联的存储器单元的多个处理器。 通信交换机和一致性控制器具有相关联的相干目录，其保持在直接连接到特定通信交换机和相干控制器的节点中“归属”的所有存储器线路的相干信息。

公开(公告)号：US5918161A

公开(公告)日：1999-06-29

申请号：US786356

申请日：1997-01-16

申请人： Rajendra Kumar ,  Kenneth H. Lau

发明人： Rajendra Kumar ,  Kenneth H. Lau

IPC分类号： G01S1/00 ,  H04B1/707 ,  H04Q7/20

CPC分类号： G01S19/22

摘要： A deconvolution approach to adaptive signal processing has been applied to the elimination of signal multipath errors as embodied in one preferred embodiment in a global positioning system receiver. The method and receiver of the present invention estimates then compensates for multipath effects in a comprehensive manner. Application of deconvolution, along with other adaptive identification and estimation techniques, results in completely novel GPS receiver architecture.

摘要翻译： 自适应信号处理的去卷积方法已经被应用于在全球定位系统接收机中体现的一个优选实施例中消除信号多径误差。 本发明的方法和接收机估计然后以综合的方式补偿多径效应。 去卷积的应用以及其他自适应识别和估计技术，导致了完全新颖的GPS接收机架构。