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31. 发明授权

US5812968A Vocoder apparatus using the link margin 失效
标题翻译：使用链接边距的声码器装置
公开(公告)号：US5812968A
公开(公告)日：1998-09-22
申请号：US705885
申请日：1996-08-28
申请人： Amer A. Hassan , Peter D. Karabinis , Nils Rutger Rydbeck
发明人： Amer A. Hassan , Peter D. Karabinis , Nils Rutger Rydbeck
IPC分类号： H04B7/185 , H04J3/16 , H04L1/00 , G10L3/02
CPC分类号： H04L1/0014 , H04B7/18532 , H04B7/18534 , H04J3/1688 , H04B7/18513 , H04L1/0025
摘要： An apparatus for improving the link margin of a communication link includes a variable rate vocoder which decreases the output bit stream rate it produces so as to reduce the amount of information having to be transmit in the communication link. In one embodiment, the variable rate vocoder includes a plurality of vocoder portions, each of which produces a different bit stream rate. The selector is used for selecting among the output bit streams produced by each vocoder. In another embodiment, a logic device is coupled to the output of the vocoder. The logic device, upon receipt of a control signal, truncates the less important bits. The method for improving link margin includes reducing the vocoder output rate thereby reducing the amount of data being transmit in an communication link. The method also includes using increased error correction coding and transmitting at increased per bit power levels to increase link margin. A device knows to increase the link margin whenever it receives a request to do so, which request is based upon poor signal quality.
摘要翻译：用于改善通信链路的链路余量的装置包括可变速率声码器，其减小其产生的输出比特流速率，以便减少在通信链路中必须发送的信息量。在一个实施例中，可变速率声码器包括多个声码器部分，每个声码器部分产生不同的比特流速率。选择器用于在由每个声码器产生的输出比特流之间进行选择。在另一个实施例中，逻辑设备耦合到声码器的输出端。在接收到控制信号时，逻辑设备截断不太重要的位。用于改善链路余量的方法包括降低声码器输出速率，从而减少在通信链路中传输的数据量。该方法还包括使用增加的纠错编码和以增加的每位功率电平进行发送以增加链路余量。一个设备知道如果接收到这样做的请求增加链路容限，哪个请求是基于较差的信号质量的。

32. 发明授权

US5809043A Method and apparatus for decoding block codes 失效
标题翻译：块码解码方法和装置
公开(公告)号：US5809043A
公开(公告)日：1998-09-15
申请号：US727736
申请日：1996-10-08
申请人： Amer A. Hassan , Ali S. Khayrallah , Harro Osthoff
发明人： Amer A. Hassan , Ali S. Khayrallah , Harro Osthoff
IPC分类号： H03M13/37 , H03M7/00 , H03M13/00 , H03M13/05 , H03M13/39 , H03M13/45 , H04L27/00
CPC分类号： H03M13/3944 , H03M13/05 , H03M13/3707 , H03M13/3723 , H03M13/6325
摘要： A decoding system processes a received vector r to produce a soft symbol information vector output s including a reliability value for each received code symbol. From the reliability values, clusters of symbols within the received vector r having low reliability are identified and detected. Responsive thereto, the received vector r is permuted to scatter the low reliability symbols within each detected low reliability cluster throughout a given codeword. A decoding generator matrix G is also correspondingly permuted is response to the detection of low reliability clusters of symbols. Utilizing a trellis obtained from the permuted decoding generator matrix G', the permuted received vector r' is then sequentially or otherwise suboptimally decoded.
摘要翻译：解码系统处理接收的矢量r以产生包括每个接收的码元的可靠性值的软符号信息矢量输出s。从可靠性值中，识别并检测具有低可靠性的接收矢量r内的符号簇。响应于此，接收的向量r被置换以在每个检测到的低可靠性集群内的整个给定码字中散布低可靠性符号。解码产生器矩阵G也被相应地置换为对低可靠性符号簇的检测的响应。利用从置换的解码产生器矩阵G'获得的网格，然后顺序地或以其它方式被次优解码的置换的接收向量r'。

33. 发明授权

US5563906A Method of geometric harmonic modulation (GHM) 失效
标题翻译：几何谐波调制方法（GHM）
公开(公告)号：US5563906A
公开(公告)日：1996-10-08
申请号：US407560
申请日：1995-03-20
申请人： John E. Hershey , Gary J. Saulnier , Amer A. Hassan
发明人： John E. Hershey , Gary J. Saulnier , Amer A. Hassan
IPC分类号： H04B1/69 , H04B7/12
CPC分类号： H04B1/69
摘要： The present invention provides a novel Geometric Harmonic Modulation (GHM) method. The GHM method functions in two modes, a preamble mode and a traffic mode. During the preamble mode, n+1 frequencies are each offset by a predetermined phase in a transmit unit and passed through a channel to a receive unit. The set of phases is used as the spreading code in the transmit unit, and also acts as an `address` of intended receive units. The receive unit monitors preamble signals to determine the phases. When it recognizes a set of phases, or `address`, which pertains to itself, the receive unit stores the phases and uses these phases to despread and decode the appended message. After the preamble mode is finished, the GHM modulator enters the traffic mode and requests the message to be transmitted from the message source. A traffic carrier waveform is created by multiplying tones, each having its specific phase. An analog or binary message is encoded by modulating the traffic carder waveform. The receive unit detects a preamble carrier and recovers the particular preamble phases to be used as the despreading `key`. The receive unit then employs the phases in despreading the received signal to recover the transmitted binary message.
摘要翻译：本发明提供了一种新颖的几何谐波调制（GHM）方法。 GHM方法在两种模式中起作用，即前导码模式和流量模式。在前导码模式期间，n + 1个频率各自在发送单元中被预定的相位偏移并且通过信道被传送到接收单元。该组相位被用作发送单元中的扩展码，并且还用作预期接收单元的“地址”。接收单元监视前置信号以确定相位。当它识别与本身相关的一组相位或“地址”时，接收单元存储相位并使用这些相位对所附加的消息进行解扩和解码。在前导码模式完成之后，GHM调制器进入业务模式，并请求消息从消息源发送。通过乘以每个具有其特定相位的音调来创建交通载波波形。模拟或二进制消息通过调制业务量卡波形进行编码。接收单元检测前同步码载波并恢复要用作解扩“密钥”的特定前同步码相位。然后，接收单元采用解扩接收信号的相位来恢复发送的二进制消息。

34. 发明授权

US5166953A Technique for frequency-hopped spread spectrum communications 失效
标题翻译：跳频扩频通信技术
公开(公告)号：US5166953A
公开(公告)日：1992-11-24
申请号：US605714
申请日：1990-10-30
申请人： John E. Hershey , Amer A. Hassan , Charles M. Puckette
发明人： John E. Hershey , Amer A. Hassan , Charles M. Puckette
IPC分类号： H04B1/7136 , H04B1/715 , H04K3/00
CPC分类号： H04B1/7136 , H04B1/715 , H04K3/25 , H04K3/827 , H04B2001/71362 , H04B2001/7152
摘要： A countermeasure to a partial-band follower jammer for frequency hopping spread spectrum communication systems employs an M-ary orthogonal frequency shift keyed (FSK) signaling system having q frequency channels available for hopping. During each signaling interval, the transmitter and receiver operate in either a conventional or unconventional mode. The conventional mode is selected by the transmitter and the receiver with a pseudorandom probability p.sub.c. In this mode, the transmitter transmits one of r tones within the corresponding hop (i.e., within one of q channels), and log.sub.2 r information bits are conveyed, while the receiver comprises a dehopper followed by noncoherent matched filters. The unconventional mode is selected with probability 1-p.sub.c. In this mode, the transmitter randomly chooses one of the r tones and transmits it in one of r channels within each hop, where the r channels are selected pseudorandomly. In the unconventional mode, log.sub.2 r information bits are transmitted and the receiver comprises a bank of r radiometers.
摘要翻译：用于跳频扩频通信系统的部分带跟随器干扰器的对策采用具有可用于跳频的q个频率信道的M进制正交频移键控（FSK）信令系统。在每个信令间隔期间，发射机和接收机以常规或非常规模式工作。常规模式由具有伪随机概率pc的发射机和接收机选择。在该模式中，发射机在对应的跳频（即，在q个信道之一内）之间发送r个音调中的一个，并且传送log2r信息比特，而接收机包括后卫非相干匹配滤波器。非常规模式以概率1-pc选择。在这种模式下，发射机随机选择一个r个音调，并在每个跳频中的一个r个信道中发送，其中r个信道被伪随机地选择。在非常规模式下，发送log2r信息位，并且接收器包括一组r辐射计。

35. 发明授权

US10231283B2 Roaming groups in a peer-to-peer network 有权
公开(公告)号：US10231283B2
公开(公告)日：2019-03-12
申请号：US13047583
申请日：2011-03-14
申请人： Henrique Filgueiras , Mukund Sankaranarayan , Amer A. Hassan , Mitesh K. Desai , Mahmoud S. Elhaddad
发明人： Henrique Filgueiras , Mukund Sankaranarayan , Amer A. Hassan , Mitesh K. Desai , Mahmoud S. Elhaddad
IPC分类号： H04W84/18 , H04L12/40 , H04L29/08 , H04W76/40 , H04W4/08
摘要： A computing device that forms a group in accordance with a peer-to-peer protocol in which a device may be identified based on a credential of a user. The credential may be used to determine a unique identifier for the user such that the same identifier is used on any device operated by the same user. Such an identifier may be used in connection with a peer-to-peer protocol that supports persistent peer-to-peer groups. As a result, the unique identifier for the user may be retained by remote devices that have paired with any device operated by a particular user such that those remote devices may automatically establish a connection with any other device operated by the same user that similarly uses the same unique identifier for the user.

36. 发明授权

US09762662B2 Mass re-formation of groups in a peer-to-peer network 有权
公开(公告)号：US09762662B2
公开(公告)日：2017-09-12
申请号：US13106638
申请日：2011-05-12
申请人： Mitesh K. Desai , Henrique Filgueiras , Amer A. Hassan , Mukund Sankaranarayan
发明人： Mitesh K. Desai , Henrique Filgueiras , Amer A. Hassan , Mukund Sankaranarayan
IPC分类号： G06F15/173 , H04L29/08
CPC分类号： H04L67/104
摘要： A system in which wireless devices form a group in accordance with a peer-to-peer protocol and, at a later time, a device may send an invitation request to trigger the devices tore-form the peer-to-peer group. The invitation request may contain an identifier that is associated with a set of a plurality of devices. Those devices may be related such that they perform a function for which a user would want to use those devices together. The group of devices, for example, may be multimedia devices that receive and present streaming multimedia content or may be human interface devices that collectively act as an interface for a work station incorporating a wireless computing device operated by a user. Requesting that remote devices concurrently re-form a group reduces the time and spectral congestion associated with re-forming the group, particularly when the remote devices may periodically enter a low power state.

37. 发明授权

US09565708B2 Auto-connect in a peer-to-peer network 有权
标题翻译：在对等网络中自动连接
公开(公告)号：US09565708B2
公开(公告)日：2017-02-07
申请号：US13112905
申请日：2011-05-20
申请人： Amer A. Hassan , Mitesh K. Desai , Mahmoud S. Elhaddad , Trideepraj Roychoudhury
发明人： Amer A. Hassan , Mitesh K. Desai , Mahmoud S. Elhaddad , Trideepraj Roychoudhury
IPC分类号： H04W76/02 , H04W84/12
CPC分类号： H04W76/023 , H04W76/14 , H04W84/12
摘要： A wireless device that automatically forms a connection to a remote device in accordance with a peer-to-peer protocol. The remote device may be designated as an auto-connect device for the wireless device such that, when the wireless device determines that it is in the vicinity of the auto-connect device, it can re-form a connection to the remote device based on stored information for re-establishing connections among a persistent group of devices, but without any express user input. When a user requests that the wireless device perform a function that involves interaction with an auto-connect device, that function may be performed with the delay associated with forming a connection. Any of multiple techniques may be employed for identifying devices designated as auto-connect devices and for determining when the wireless device and a remote, auto-connect devices are in close proximity.
摘要翻译：根据点对点协议自动形成与远程设备的连接的无线设备。远程设备可以被指定为无线设备的自动连接设备，使得当无线设备确定它在自动连接设备附近时，它可以基于以下方式重新建立到远程设备的连接：存储的信息用于在持久的设备组之间重新建立连接，但没有任何明确的用户输入。当用户请求无线设备执行涉及与自动连接设备交互的功能时，可以以与形成连接相关联的延迟来执行该功能。可以采用多种技术中的任何一种来识别被指定为自动连接设备的设备，并且用于确定无线设备何时和远程的自动连接设备紧邻。

38. 发明授权

US09288681B2 White space utilization 有权
标题翻译：白色空间利用
公开(公告)号：US09288681B2
公开(公告)日：2016-03-15
申请号：US13525370
申请日：2012-06-18
申请人： Amer A. Hassan , Daniel A. Reed , Paul W. Garnett , Billy Anders
发明人： Amer A. Hassan , Daniel A. Reed , Paul W. Garnett , Billy Anders
IPC分类号： H04B7/00 , H04W16/14 , H04W28/16 , H04W72/04 , H04W84/12 , H04W88/08
CPC分类号： H04W16/14 , H04W28/16 , H04W72/044 , H04W84/12 , H04W88/08
摘要： The concepts relate to broadcasting white space utilization. One example can function as a client relative to a wireless access point that is configured to obtain authorization to utilize a radio white space frequency according to a set of constraints. The example can function as a Wi-Fi direct group owner to establish a Wi-Fi connection with a device that is not the wireless access point. This example can also transmit data over the radio white space frequency to the device in compliance with the set of constraints.
摘要翻译：这些概念涉及广播空白利用。一个示例可以用作相对于无线接入点的客户端，该无线接入点被配置为根据一组约束获得使用无线电空间频率的授权。该示例可以用作Wi-Fi直接组所有者以与不是无线接入点的设备建立Wi-Fi连接。该示例还可以通过无线电空间频率将数据发送到符合该组约束的设备。

39. 发明授权

US09282449B2 Peer-to-peer discovery 有权
标题翻译：点对点发现
公开(公告)号：US09282449B2
公开(公告)日：2016-03-08
申请号：US13410098
申请日：2012-03-01
申请人： Mahmoud S. Elhaddad , Mitesh K. Desai , Henrique M. A. Filgueiras , Amer A. Hassan , Trideepraj Roychoudhury , Mukund Sankaranarayan
发明人： Mahmoud S. Elhaddad , Mitesh K. Desai , Henrique M. A. Filgueiras , Amer A. Hassan , Trideepraj Roychoudhury , Mukund Sankaranarayan
IPC分类号： H04W8/00 , G06F15/173 , G06F15/16 , H04L29/08
CPC分类号： H04W48/16 , H04L67/104 , H04W8/005
摘要： A wireless device that discovers other wireless devices for the formation of a peer-to-peer connection may perform a scan that is limited in duration and power consumption. The scan nonetheless is highly likely to discover a device, if a discoverable device exists. In addition, the scan may be performed in compliance with parameters of a peer-to-protocol such that the scan may be readily implemented in a wireless device, in some embodiments even as a firmware upgrade on a wireless network interface card. Parameters of the scan may be adjusted to increase the likelihood that, if the scan completes without discovering a device, no discoverable device exists. The scan may be used in an overall process in which discovery ends or the scan is selectively repeated following an unsuccessful scan, without entering a find phase.
摘要翻译：发现用于形成对等连接的其他无线设备的无线设备可以执行在持续时间和功耗方面受到限制的扫描。如果存在可发现的设备，则扫描很有可能发现设备。此外，可以根据对等协议的参数执行扫描，使得扫描可以容易地在无线设备中实现，在一些实施例中，即使在无线网络接口卡上的固件升级。可以调整扫描的参数以增加如果扫描在没有发现设备的情况下完成的可能性，则不存在可发现的设备。扫描可以在发现结束的整个过程中使用，或者在不成功扫描之后选择性地重复扫描，而不进入查找阶段。

40. 发明授权

US08923770B2 Cognitive use of multiple regulatory domains 有权
标题翻译：认知使用多个监管领域
公开(公告)号：US08923770B2
公开(公告)日：2014-12-30
申请号：US12964492
申请日：2010-12-09
申请人： Amer A. Hassan , Danny Allen Reed , Trenholme J. Griffin
发明人： Amer A. Hassan , Danny Allen Reed , Trenholme J. Griffin
IPC分类号： H04B15/00 , H04B17/00 , H04L1/00 , H04W16/14 , H04W72/04
CPC分类号： H04W16/14 , H04B1/005 , H04B7/12 , H04B15/00 , H04L1/0023 , H04L1/0033 , H04L1/0034 , H04L65/60 , H04L2001/0096 , H04W72/04 , H04W88/06
摘要： A wireless communication system that concurrently communicates information in multiple regulatory domains to facilitate audio/video media streaming and other high bandwidth operations. One domain may be licensed and the other may be unlicensed. Transmission in the licensed domain may occur in white space in the domain, and the amount of information transmitted in that domain may be limited by regulations. The amount of information conveyed in the licensed domain may also depend on channel conditions in either or both of the domains. As a result, the relative amount of information transmitted in each domain may vary dynamically. The system includes a transmitter that dynamically determines weighting coefficients applied to each of a plurality of channels to set power levels in both domains to achieve a desired metric for the overall communication. A corresponding receiver assembles the substreams into a stream that can then be displayed or otherwise processed.
摘要翻译：一种无线通信系统，其同时在多个调节域中传送信息以促进音频/视频媒体流和其他高带宽操作。一个域可能是许可的，另一个域可能是无许可的。许可域中的传输可能发生在域中的空白处，并且在该域中传输的信息量可能受到规则的限制。在许可域中传送的信息量也可能取决于两个域或两个域中的信道条件。结果，在每个域中发送的信息的相对量可以动态变化。该系统包括发射机，其动态地确定应用于多个信道中的每个信道的加权系数，以设置两个域中的功率电平，以实现整个通信的期望度量。相应的接收器将子流组合成可以显示或以其他方式处理的流。

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