公开(公告)号：US07003536B2

公开(公告)日：2006-02-21

申请号：US10219962

申请日：2002-08-15

Applicant: Ehud Reshef ,  Idan Alrod

Inventor： Ehud Reshef ,  Idan Alrod

IPC: G06F7/14

CPC classification number: G06F17/145

Abstract: A method and apparatus for performing a radix-4 fast Hadamard transform (FHT) with reduced complexity and for directly determining the maximum output of a fast Hadamard transform using either a radix-4 transform or radix-2 transform without actually generating the outputs. The radix-4 fast Hadamard transform is implemented using only seven operations. To find the maximum value of the output of a fast Hadamard transform and its corresponding index, the N−1 stages of a conventional N stage fast Hadamard transform are computed while a find-maximum stage is inserted in place of the Nth stage. The invention also provides a methodology for constructing fast Hadamard transforms of the form H2N using radix-4 FHTs and permuting the results to achieve the correct outputs.

Abstract translation: 一种方法和装置，用于以降低的复杂度执行基4快速Hadamard变换（FHT），并且使用基数-4变换或基数-2变换直接确定快速哈达玛变换的最大输出，而不实际产生输出。 基数4快速Hadamard变换仅使用七个操作实现。 为了找到快速Hadamard变换的输出的最大值及其对应的索引，计算常规N阶段快速Hadamard变换的N-1阶段，同时插入找到最大阶段代替N < 舞台。 本发明还提供了一种用于使用基数-4 FHT来构建H 2形式的快速Hadamard变换的方法，并将结果置换以实现 正确的输出。

公开(公告)号：US06993541B2

公开(公告)日：2006-01-31

申请号：US10827594

申请日：2004-04-19

Applicant: Ehud Reshef ,  Idan Alrod

Inventor： Ehud Reshef ,  Idan Alrod

IPC: G06F17/14

CPC classification number: G06F17/145

Abstract: A method and apparatus for performing a radix-4 fast Hadamard transform (FHT) with reduced complexity and for directly determining the maximum output of a fast Hadamard transform using either a radix-4 transform or radix-2 transform without actually generating the outputs. The radix-4 fast Hadamard transform is implemented using only seven operations. To find the maximum value of the output of a fast Hadamard transform and its corresponding index, the N-1 stages of a conventional N stage fast Hadamard transform are computed while a find-maximum stage is inserted in place of the Nth stage. The invention also provides a methodology for constructing fast Hadamard transforms of the form H2N using radix-4 FHTs and permuting the results to achieve the correct outputs.

Abstract translation: 一种方法和装置，用于以降低的复杂度执行基4快速Hadamard变换（FHT），并且使用基数-4变换或基数-2变换直接确定快速哈达玛变换的最大输出，而不实际产生输出。 基数4快速Hadamard变换仅使用七个操作实现。 为了找到快速Hadamard变换的输出的最大值及其对应的索引，计算常规N阶段快速Hadamard变换的N-1阶段，同时插入找到最大阶段代替N < 舞台。 本发明还提供了一种用于使用基数-4 FHT来构建H 2形式的快速Hadamard变换的方法，并将结果置换以实现 正确的输出。

公开(公告)号：US20250063621A1

公开(公告)日：2025-02-20

申请号：US18937965

申请日：2024-11-05

Applicant: Laurent Cariou ,  Daniel F. Bravo ,  Ehud Reshef

Inventor： Laurent Cariou ,  Daniel F. Bravo ,  Ehud Reshef

IPC: H04W76/16 ,  H04W8/00 ,  H04W74/0816

Abstract: Methods, apparatuses, and computer readable media for multi-band discovery, where a station (STA) comprises processing circuitry configured to: decode, from an access point (AP) multi-link device (MLD) on a first channel of a first band, a first PPDU, the first PPDU comprising an indication of an operating channel of the AP MLD on a second channel of a second band, encode, for transmission to the AP MLD on the second channel of the second band, a second PPDU. And where an AP MLD comprises processing circuitry configured to: encode, for transmission on a first link of the MLD, a first physical layer protocol data unit (PPDU), the first PPDU comprising an indication of an operating band and an operating channel of a second link of the MLD, and decode, from a station (STA) on the second link on the operating band and the operating channel, a second PPDU.

公开(公告)号：US20220330270A1

公开(公告)日：2022-10-13

申请号：US17848110

申请日：2022-06-23

Applicant: Dibakar Das ,  Dave A. Cavalcanti ,  Laurent Cariou ,  Dmitry Akhmetov ,  Daniel F. Bravo ,  Danny Alexander ,  Ehud Reshef

Inventor： Dibakar Das ,  Dave A. Cavalcanti ,  Laurent Cariou ,  Dmitry Akhmetov ,  Daniel F. Bravo ,  Danny Alexander ,  Ehud Reshef

IPC: H04W72/12

Abstract: To communicate with a plurality of non-AP stations (STAs) within synchronized transmission opportunities (S-TXOPs), an access point station (AP) performs an initial management frame exchange with the STAs. During the initial management frame exchange, one or more sets of semi-static allocation parameters are signalling to the STAs. Each set of semi-static allocation parameters is associated with an allocation index (IDx). The AP may communicate data with the STAs during S-TXOPs that follow the initial management frame exchange. Each of the S-TXOPs may include an S-TXOP trigger. The S-TXOP trigger may be encoded to include one of the allocation indices to indicate a known allocation for use during the associated S-TXOP when a set of the predetermined semi-static allocation parameters are to be used. The S-TXOP trigger may be encoded to include full allocation information to indicate a new allocation for use during the associated S-TXOP when the predetermined semi-static allocation parameters are not used.

公开(公告)号：US09585046B2

公开(公告)日：2017-02-28

申请号：US14496993

申请日：2014-09-25

Applicant: Ehud Reshef ,  Jonathan Segev ,  Ofer Hareuveni ,  Elad Oren

Inventor： Ehud Reshef ,  Jonathan Segev ,  Ofer Hareuveni ,  Elad Oren

IPC: H04W24/10 ,  H04W84/12 ,  H04L12/26 ,  G01S19/25 ,  H04W64/00

CPC classification number: H04W24/10 ,  G01S19/256 ,  H04L43/0864 ,  H04W64/00 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/26

Abstract: Embodiments relating to systems, methods, and devices for social proximity fine timing measurement requests (FTMR) multicast signaling between mobile devices are disclosed. Example embodiments generally relate to Wi-Fi networks, IEEE 802.11x, Social Wi-Fi networks and Neighbor-Awareness Networking (NAN).

Abstract translation: 公开了与移动设备之间的社交接近精确定时测量请求（FTMR）多播信令的系统，方法和设备相关的实施例。 示例性实施例通常涉及Wi-Fi网络，IEEE 802.11x，社交Wi-Fi网络和邻居意识网络（NAN）。

公开(公告)号：US20140094189A1

公开(公告)日：2014-04-03

申请号：US13631853

申请日：2012-09-28

Applicant: Ehud Reshef

Inventor： Ehud Reshef

IPC: H04W64/00

CPC classification number: H04W64/00 ,  G01S5/0027 ,  G01S5/0252 ,  H04L67/18

Abstract: Embodiments may comprise logic to adaptively prepare and transmit environmental information based upon an estimated current location and, in some embodiments, context of a device and to adaptively cache the environmental information to reduce or optimize environmental information communicated from an information server to the device. Some embodiments comprise an information server to receive a request for environmental information comprising an estimated current location for the device. In many embodiments, the information server may determine a prior set of environmental information conveyed to the device and determine, in response to receiving the estimated current location, the current set of environmental information based upon the estimated current location. In many embodiments, the current set of environmental information may encompass environmental information near the estimated current location of the device but not to encompass environmental information that was included in a prior set of environmental information transmitted to the device.

Abstract translation: 实施例可以包括基于估计的当前位置以及在一些实施例中的设备的上下文自适应地准备和发送环境信息的逻辑，并且自适应地缓存环境信息以减少或优化从信息服务器传送到设备的环境信息。 一些实施例包括一个信息服务器，用于接收包括设备的估计当前位置的环境信息的请求。 在许多实施例中，信息服务器可以确定传送到设备的先前的一组环境信息，并且基于估计的当前位置来确定响应于接收估计的当前位置的当前环境信息集合。 在许多实施例中，当前环境信息集合可以包括设备估计的当前位置附近的环境信息，但不包括被包括在传输到设备的先前环境信息集合中的环境信息。

公开(公告)号：US06529559B2

公开(公告)日：2003-03-04

申请号：US09760401

申请日：2001-01-12

Applicant: Ehud Reshef

Inventor： Ehud Reshef

IPC: H04L2502

CPC classification number: H04L1/0054 ,  H04L1/0059 ,  H04L1/0068 ,  H04L1/0071 ,  H04L25/067 ,  H04L27/38

Abstract: An apparatus for and method of reducing the soft output information packet to be computed by a soft symbol generator. The reduced soft output information packet generated by the soft symbol generator is subsequently used by a soft symbol to soft bit mapper which functions to convert soft symbol decision information into soft bit decision information. A symbol competitor table is constructed that includes the most likely symbol competitors for each bit of the symbol. The table is populated with m entries for each possible symbol value, where m represents the number of bits per symbol. Symbol competitors am retrieved from the table in accordance with hard decisions. Soft symbol information is generated only for symbol competitors rather than for all possible symbols thus substantially reducing the size of the information packet.

Abstract translation: 一种用于减少由软符号发生器计算的软输出信息分组的装置和方法。 由软符号发生器产生的减小的软输出信息分组随后由软符号到软位映射器使用，其用于将软符号判定信息转换为软位决策信息。 构建符号竞争者表，其中包括符号的每一位最可能的符号竞争对手。 该表填充有每个可能符号值的m个条目，其中m表示每个符号的位数。 符号竞争者根据艰难的决定从表中检索。 软符号信息仅针对符号竞争者产生，而不是为所有可能的符号生成，从而大大减少了信息包的大小。

公开(公告)号：US20210067285A1

公开(公告)日：2021-03-04

申请号：US17094779

申请日：2020-11-10

Applicant: Laurent Cariou ,  Nir Balaban ,  Daniel Bravo ,  Dor Chay ,  Xiaogang Chen ,  Feng Jiang ,  Thomas J. Kenney ,  Qinghua Li ,  Ehud Reshef

Inventor： Laurent Cariou ,  Nir Balaban ,  Daniel Bravo ,  Dor Chay ,  Xiaogang Chen ,  Feng Jiang ,  Thomas J. Kenney ,  Qinghua Li ,  Ehud Reshef

IPC: H04L5/00 ,  H04L27/26 ,  H04W74/08

Abstract: This disclosure describes systems, methods, and devices related to enhanced bandwidth selection for wireless devices. A device may generate a request frame with at least one of a first indication of a bandwidth for which a second device is to measure a first noise level or a second indication of a resource unit for which the second device is to measure a second noise level. The device may send the request frame to the second device. The device may identify a response frame received from the second device, the response frame having a third indication of the first noise level or the second noise level and a fourth indication of the bandwidth or the resource unit. The device may determine, based on the first noise level or the second noise level, a parameter associated with a subsequent frame to send to the second device.

公开(公告)号：US20140195198A1

公开(公告)日：2014-07-10

申请号：US13738472

申请日：2013-01-10

Applicant: Ehud Reshef ,  Sumeet Sandhu ,  Songnan Yang ,  Kelly Hoffman ,  Kristoffer Fleming ,  Hossein Alavi

Inventor： Ehud Reshef ,  Sumeet Sandhu ,  Songnan Yang ,  Kelly Hoffman ,  Kristoffer Fleming ,  Hossein Alavi

IPC: G01J1/44 ,  G06F17/00

CPC classification number: G06F17/00 ,  G01J1/429 ,  H04W4/026 ,  H04W4/029 ,  H04W4/06 ,  H04W4/38 ,  H04W4/90

Abstract: The present application discloses devices, systems and methods for establishing and utilizing a UV sensing network to harness the efficacy of distributed UV sensing to produce improved accuracy of UV exposure measurement using mobile devices. This may be accomplished by “crowd sourcing”, i.e. having multiple devices work collaboratively to measure the UV exposure. The collaboration can be implemented in many potential ways, such as, using a server based architecture where devices connect to a specific “UV measurements server” to provide measurements and receive aggregate estimated exposure levels, and/or by using a peer-to-peer architecture, where devices in a specific region creates a local ad-hoc UV sensing network.

Abstract translation: 本申请公开了用于建立和利用UV感测网络以利用分布式UV感测的功效以产生使用移动设备的UV曝光测量的改进的准确度的设备，系统和方法。 这可以通过“群体采购”来实现，即，多个设备协同工作以测量UV曝光。 协作可以以许多潜在的方式实现，例如使用基于服务器的架构，其中设备连接到特定的“UV测量服务器”以提供测量和接收总体估计的暴露水平，和/或通过使用对等 架构，其中特定区域中的设备创建本地自组织UV感测网络。

公开(公告)号：US20090180451A1

公开(公告)日：2009-07-16

申请号：US12349758

申请日：2009-01-07

Applicant: Yaron Alpert ,  Jonathan Segev ,  Ehud Reshef

Inventor： Yaron Alpert ,  Jonathan Segev ,  Ehud Reshef

IPC: H04W84/10

CPC classification number: H04W72/1215 ,  H04M1/7253 ,  H04W88/06

Abstract: A novel and useful apparatus for and method of coordinating the allocation of transmission and reception availability and/or unavailability periods for use in a communications device incorporating collocated multiple radios. The mechanism provide both centralized and distributed coordination to enable the coordination (e.g., to achieve coexistence) of multiple radio access communication devices (RACDs) collocated in a single device such as a mobile station. A distributed activity coordinator modifies the activity pattern of multiple RACDs. The activity pattern comprises a set of radio access specific modes of operation, (e.g., IEEE 802.16 Normal, Sleep, Scan or Idle modes, 3GPP GSM/EDGE operation mode (PTM, IDLE, Connected, DTM modes), etc.) and a compatible set of wake-up events, such as reception and transmission availability periods. To prevent interference and possible loss of data, a radio access is prevented from transmitting or receiving data packets while another radio access is transmitting or receiving. In the event two or more RATs desire to be active at the same time, the mechanism negotiates an availability pattern between the MS and a corresponding BS to achieve coordination between the RATs.

Abstract translation: 一种用于协调用于并入多个无线电的通信设备中的发送和接收可用性和/或不可用时间段的分配的新颖有用的装置和方法。 该机制提供集中式和分布式协调，以实现并置在诸如移动站的单个设备中的多个无线电接入通信设备（RACD）的协调（例如，实现共存）。 分布式活动协调器修改多个RACD的活动模式。 活动模式包括一组无线电接入特定的操作模式（例如，IEEE 802.16标准，睡眠，扫描或空闲模式，3GPP GSM / EDGE操作模式（PTM，IDLE，连接，DTM模式）等）和 兼容的一组唤醒事件，如接收和传输可用性周期。 为了防止数据的干扰和可能的丢失，防止无线电接入在另一无线电接入正在发送或接收时发送或接收数据分组。 在两个或更多个RAT期望同时活动的情况下，机制协商MS与对应的BS之间的可用性模式以实现RAT之间的协调。