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1. 发明申请

US20190253083A1 METHOD OF TRANSMITTING AND RECEIVING AUDIO SIGNALS AND APPARATUS THEREOF 审中-公开
公开(公告)号：US20190253083A1
公开(公告)日：2019-08-15
申请号：US16277840
申请日：2019-02-15
申请人： Lattice Semiconductor Corporation
发明人： Jiong Huang , Alexander Peysakhovich , Lei Ming
IPC分类号： H03M13/37 , H03M13/27 , H03M13/15 , G06F13/42 , H04L9/06
CPC分类号： H03M13/3746 , G06F13/4282 , H03M13/152 , H03M13/27 , H04L9/065 , H04L2209/20 , H04L2209/34
摘要： Example embodiments herein relate to methods of transmitting and receiving audio signals. A method of transmitting an audio signal includes: receiving the audio signal including frames having left and right subframes containing audio data of a first number of bits; encoding the left and right subframes into a parity code of a second number of bits; generating serial data by combining the parity code and audio data; and transmitting the serial data over an audio transmission media having a bandwidth of a third number of bits, a sum of the first and second number being below the third number. A method of receiving an audio signal includes: receiving a serial signal combining a parity code; decoding the serial signal by calculating a syndrome based on the parity code; detecting an error by comparing the syndrome with the audio data; and generating a corrected audio signal by correcting the detected error.

2. 发明授权

US09917689B2 Generating multiple secure hashes from a single data buffer 有权
公开(公告)号：US09917689B2
公开(公告)日：2018-03-13
申请号：US15231595
申请日：2016-08-08
申请人： Intel Corporation
发明人： Sean M. Gulley , Vinodh Gopal , Wajdi K. Feghali , James D. Guilford , Gilbert M. Wolrich , Kirk S. Yap
IPC分类号： H04L9/06 , G06F21/72 , H04L9/32
CPC分类号： H04L9/0643 , G06F9/30007 , G06F21/72 , H04L9/3242 , H04L2209/12 , H04L2209/125 , H04L2209/20
摘要： One embodiment provides an apparatus. The apparatus includes a single instruction multiple data (SIMD) hash module configured to apportion at least a first portion of a message of length L to a number (S) of segments, the message including a plurality of sequences of data elements, each sequence including S data elements, a respective data element in each sequence apportioned to a respective segment, each segment including a number N of blocks of data elements and to hash the S segments in parallel, resulting in S segment digests, the S hash digests based, at least in part, on an initial value and to store the S hash digests; a padding module configured to pad a remainder, the remainder corresponding to a second portion of the message, the second portion related to the length L of the message, the number of segments and a block size; and a non-SIMD hash module configured to hash the padded remainder, resulting in an additional hash digest and to store the additional hash digest.

3. 发明授权

US09892283B2 Decryption of encrypted instructions using keys selected on basis of instruction fetch address 有权
公开(公告)号：US09892283B2
公开(公告)日：2018-02-13
申请号：US14884502
申请日：2015-10-15
申请人： VIA TECHNOLOGIES, INC.
发明人： G. Glenn Henry , Terry Parks , Brent Bean , Thomas A. Crispin
IPC分类号： G06F21/72 , G06F9/30 , H04L9/08 , G06F21/74 , G06F12/0875 , G06F21/52 , G06F21/60 , G06F21/71 , H04L9/06
CPC分类号： G06F21/72 , G06F9/30003 , G06F9/30079 , G06F9/30178 , G06F9/30189 , G06F12/0875 , G06F21/52 , G06F21/602 , G06F21/71 , G06F21/74 , G06F2212/402 , G06F2212/452 , G06F2221/2107 , H04L9/0618 , H04L9/0861 , H04L9/0891 , H04L9/0894 , H04L2209/12 , H04L2209/20
摘要： A microprocessor and method are provided for securely decrypting and executing encrypted instructions within a microprocessor. A plurality of master keys are stored in a secure memory. Encrypted instructions are fetched from an instruction cache. A set of one or more master keys are selected from the secure memory based upon an encrypted instruction fetch address. The selected set of master keys or a decryption key derived therefrom is used to decrypt the encrypted instructions fetched from the instruction cache. The decrypted instructions are then securely executed within the microprocessor. In one implementation, the master keys are intervolved with each other to produce a new decryption key with every fetch quantum. Moreover, a new set of master keys is selected with every new block of instructions.

4. 发明申请

US20180006807A1 ENERGY-EFFICIENT BITCOIN MINING HARDWARE ACCELERATORS 审中-公开
公开(公告)号：US20180006807A1
公开(公告)日：2018-01-04
申请号：US15196686
申请日：2016-06-29
申请人： Intel Corporation
发明人： Vikram B. Suresh , Sudhir K. Satpathy , Sanu K. Mathew
IPC分类号： H04L9/06
CPC分类号： H04L9/0643 , H04L9/0618 , H04L2209/20 , H04L2209/30 , H04L2209/38 , H04L2209/56
摘要： A processing system includes a processor to construct an input message comprising a target value and a nonce and a hardware accelerator, communicatively coupled to the processor, implementing a plurality of circuits to perform stage-1 secure hash algorithm (SHA) hash and stage-2 SHA hash, wherein to perform the stage-2 SHA hash, the hardware accelerator is to perform a plurality of rounds of compression on state data stored in a plurality of registers associated with a stage-2 SHA hash circuit using an input value, calculate a plurality of speculative computation bits using a plurality of bits of the state data, and transmit the plurality of speculative computation bits to the processor.

5. 发明授权

US09729325B2 Apparatus and method for protecting message data 有权
公开(公告)号：US09729325B2
公开(公告)日：2017-08-08
申请号：US14659082
申请日：2015-03-16
申请人： QUALCOMM Incorporated
发明人： David Jacobson , Billy Brumley
IPC分类号： H04L9/32 , G06F21/00 , H04L29/06 , H04L9/00 , H04W12/02 , H04W28/06
CPC分类号： H04L9/3242 , H04L9/002 , H04L9/3223 , H04L9/3239 , H04L63/0428 , H04L63/123 , H04L63/1475 , H04L63/166 , H04L69/04 , H04L2209/16 , H04L2209/20 , H04L2209/24 , H04L2209/30 , H04W12/02 , H04W28/06
摘要： Disclosed is a method for protecting message data. In the method, the message data is padded with padding bits generated based on a deterministic function performed on the message data. The padded message data is compressed to generate compressed data. A length of the compressed data is dependent on the padding bits. The compressed data is encrypted to generate encrypted message data.

6. 发明申请

US20170054552A1 Method of Transmitting and Receiving Audio Signals and Apparatus Thereof 审中-公开
标题翻译：发送和接收音频信号的方法及其设备
公开(公告)号：US20170054552A1
公开(公告)日：2017-02-23
申请号：US15228409
申请日：2016-08-04
申请人： Lattice Semiconductor Corporation
发明人： Jiong HUANG , Alexander Peysakhovich , Lei Ming
IPC分类号： H04L9/06 , G06F13/42 , H03M13/37 , G06F21/60
CPC分类号： H03M13/3746 , G06F13/4282 , H04L9/065 , H04L2209/20 , H04L2209/34
摘要： Example embodiments disclosed herein relate to a method of transmitting an audio signal and also a method of receiving an audio signal. The method of transmitting the audio signal includes: receiving the audio signal including a plurality of frames having a left and right subframes containing audio data of a first number of bits; encoding the left and right subframes into a parity code of a second number of bits; generating serial data by combining the parity code and the audio data; and transmitting the serial data over an audio transmission media having a bandwidth of a third number of bits, a sum of the first number of bits and the second number of bits being below the third number of bits. The method of receiving the audio signal includes: receiving a serial signal combining a parity code; decoding the serial signal by calculating a syndrome based on the parity code; detecting an error by comparing the syndrome with the audio data; and generating a corrected audio signal by correcting the detected error.
摘要翻译：本文公开的示例实施例涉及发送音频信号的方法以及接收音频信号的方法。发送音频信号的方法包括：接收音频信号，包括具有包含第一位数的音频数据的左和右子帧的多个帧; 将左和右子帧编码为第二位数的奇偶校验码; 通过组合奇偶校验码和音频数据产生串行数据; 以及通过具有第三比特数的带宽的音频传输媒体发送所述串行数据，所述第一比特数和所述第二比特数的和低于所述第三比特数。接收音频信号的方法包括：接收组合奇偶校验码的串行信号; 通过基于奇偶校验码计算校正子来解码串行信号; 通过将综合征与音频数据进行比较来检测错误; 以及通过校正检测到的误差来产生校正的音频信号。

7. 发明申请

US20170034150A1 ANTIALIASING FOR PICTURE PASSWORDS AND OTHER TOUCH DISPLAYS 审中-公开
标题翻译：用于图片密码和其他触摸显示的防伪
公开(公告)号：US20170034150A1
公开(公告)日：2017-02-02
申请号：US15295718
申请日：2016-10-17
申请人： Robert H. Thibadeau, SR. , Justin D. Donnell , Robert Thibadeau, JR.
发明人： Robert H. Thibadeau, SR. , Justin D. Donnell , Robert Thibadeau, JR.
IPC分类号： H04L29/06 , H04L9/32
CPC分类号： H04L63/083 , G06F3/04812 , G06F3/04842 , G06F21/36 , G06F2221/2133 , H04L9/3218 , H04L9/3236 , H04L9/3239 , H04L9/3242 , H04L63/0853 , H04L63/0861 , H04L63/0884 , H04L2209/20
摘要： Antialiasing for picture passwords and other touch displays is disclosed. In some embodiments a client device for authenticating a user is operable to obtain a sequence of input actions for an image and obtain a partial hash from a Proof of Knowledge (PoK) server where the partial hash is part of a hash used for authentication of the user. The client device is also operable to calculate a hash for the sequence and determine if a part of the hash matches the partial hash. If the part of the hash matches the partial hash, the client device sends a communication to the PoK server to authenticate the user based on the hash for the sequence of the one or more input actions and obtain a response indicating whether the user is authenticated. In this way, sending some hashes to the proof of knowledge server may not be necessary, saving resources.
摘要翻译：公开了图像密码和其他触摸显示器的抗锯齿。在一些实施例中，用于认证用户的客户端设备可操作以获得图像的输入动作序列，并从知识证明（PoK）服务器获得部分散列，其中部分散列是用于认证的散列的一部分用户。客户端设备还可操作用于计算序列的散列，并确定散列的一部分是否与部分散列匹配。如果哈希的一部分与部分散列匹配，则客户机设备发送一个通信给PoK服务器，以便基于该一个或多个输入动作的序列的散列来验证用户，并获得指示用户是否被认证的响应。以这种方式，可能不需要发送一些散列到知识服务器的证明，节省资源。

8. 发明申请

US20160352512A1 Generating Multiple Secure Hashes from a Single Data Buffer 审中-公开
公开(公告)号：US20160352512A1
公开(公告)日：2016-12-01
申请号：US15231595
申请日：2016-08-08
申请人： Intel Corporation
发明人： Sean M. Gulley , Vinodh Gopal , Wajdi K. Feghali , James D. Guilford , Gilbert M. Wolrich , Kirk S. Yap
IPC分类号： H04L9/06 , G06F21/72 , H04L9/32
CPC分类号： H04L9/0643 , G06F9/30007 , G06F21/72 , H04L9/3242 , H04L2209/12 , H04L2209/125 , H04L2209/20
摘要： One embodiment provides an apparatus. The apparatus includes a single instruction multiple data (SIMD) hash module configured to apportion at least a first portion of a message of length L to a number (S) of segments, the message including a plurality of sequences of data elements, each sequence including S data elements, a respective data element in each sequence apportioned to a respective segment, each segment including a number N of blocks of data elements and to hash the S segments in parallel, resulting in S segment digests, the S hash digests based, at least in part, on an initial value and to store the S hash digests; a padding module configured to pad a remainder, the remainder corresponding to a second portion of the message, the second portion related to the length L of the message, the number of segments and a block size; and a non-SIMD hash module configured to hash the padded remainder, resulting in an additional hash digest and to store the additional hash digest.

9. 发明授权

US09497514B2 DTCP converter for HLS 有权
标题翻译：用于HLS的DTCP转换器
公开(公告)号：US09497514B2
公开(公告)日：2016-11-15
申请号：US14312536
申请日：2014-06-23
申请人： General Instrument Corporation
发明人： Paul Moroney , Geetha Mangalore , William P. Franks
IPC分类号： H04N21/647 , H04N7/167 , H04N7/173 , H04N21/235 , H04N21/2381 , H04N21/266 , H04N21/418 , H04N21/433 , H04N21/435 , H04N21/472 , H04N21/6587 , H04L9/08 , H04L29/06 , H04N21/41 , H04N21/4402 , H04N21/4408 , H04N21/61 , H04N21/2343 , H04N21/4363 , H04N21/643 , H04N21/8355 , H04N21/845 , H04N21/262 , H04N21/482
CPC分类号： H04N21/64715 , H04L9/0861 , H04L63/00 , H04L63/061 , H04L63/123 , H04L65/1026 , H04L65/608 , H04L65/80 , H04L69/16 , H04L2209/20 , H04L2209/60 , H04N7/1675 , H04N7/17318 , H04N21/23439 , H04N21/2351 , H04N21/2381 , H04N21/26258 , H04N21/26613 , H04N21/4126 , H04N21/4181 , H04N21/433 , H04N21/435 , H04N21/4363 , H04N21/440218 , H04N21/4408 , H04N21/47217 , H04N21/4825 , H04N21/6118 , H04N21/6131 , H04N21/64322 , H04N21/6587 , H04N21/8355 , H04N21/8456
摘要： A method for DTCP to HLS conversion is provided that starts with a standard DTCP Protected Content Packet (PCP) structure. The PCP payload data is chunked at defined chunk boundaries. Each chunk is then appended with a pad to be compatible with HLS. An HLS playlist is then provided using the PCP header with identification of the chunks and a keytag. The chunk is encrypted with a DTCP key calculated by the DTCP standard using: (a) copy control bits; (b) a nonce, and (c) an exchange key ID. Relevant PCP header fields are provided in the keytag for the HLS playlist, including the value of the copy control bits, the nonce and the exchange key ID, supporting the transaction that enables calculation of the DTCP content key to enable later decryption of the chunks.
摘要翻译：提供了一种用于DTCP到HLS转换的方法，其以标准的DTCP保护内容分组（PCP）结构开始。 PCP有效载荷数据在定义的块边界处分块。然后每个块都附加一个与HLS兼容的焊盘。然后使用具有块的标识和密钥标签的PCP头提供HLS播放列表。使用以下方式由DTCP标准计算的DTCP密钥对该块进行加密：（a）复制控制位; （b）随机数，和（c）交换密钥ID。在用于HLS播放列表的密钥标签中提供相关的PCP头字段，包括复制控制比特的值，随机数和交换密钥ID，支持可以计算DTCP内容密钥的事务，以便稍后解密该块。

10. 发明授权

US09491521B2 Trick play seek operation for HLS converted from DTCP 有权
标题翻译：从DTCP转换HLS的Trick play seek操作
公开(公告)号：US09491521B2
公开(公告)日：2016-11-08
申请号：US14312558
申请日：2014-06-23
申请人： General Instrument Corporation
发明人： Geetha Mangalore , Paul Moroney
IPC分类号： H04N7/167 , H04N21/647 , H04N7/173 , H04N21/235 , H04N21/2381 , H04N21/266 , H04N21/418 , H04N21/433 , H04N21/435 , H04N21/472 , H04N21/6587 , H04L9/08 , H04L29/06 , H04N21/41 , H04N21/4402 , H04N21/4408 , H04N21/61 , H04N21/2343 , H04N21/4363 , H04N21/643 , H04N21/8355 , H04N21/845 , H04N21/262 , H04N21/482
CPC分类号： H04N21/64715 , H04L9/0861 , H04L63/00 , H04L63/061 , H04L63/123 , H04L65/1026 , H04L65/608 , H04L65/80 , H04L69/16 , H04L2209/20 , H04L2209/60 , H04N7/1675 , H04N7/17318 , H04N21/23439 , H04N21/2351 , H04N21/2381 , H04N21/26258 , H04N21/26613 , H04N21/4126 , H04N21/4181 , H04N21/433 , H04N21/435 , H04N21/4363 , H04N21/440218 , H04N21/4408 , H04N21/47217 , H04N21/4825 , H04N21/6118 , H04N21/6131 , H04N21/64322 , H04N21/6587 , H04N21/8355 , H04N21/8456
摘要： A process to enable trick play operations is provided for HLS streaming video that has been converted by a system from DTCP. The system server provides a modified SEEK operation when an HLS GET message is received from an HLS client player. For the process, a DLNA header is provided from the HLS client player by including it in the HLS GET message. The HLS client also provides a DLNA RANGE REQUEST that requests a range of chunks making up a video desired and a seek point from where a seek operation is needed. The HLS server recognizes the DLNA header of the HLS GET message and DLNA RANGE REQUEST and obtains a range of chunks making up an extent of the recorded video using metadata fields. The server then generates a new HLS playlist with identification of the chunks and keytag corresponding to the seek operation. The server will provide chunks from the seek point and a rolling playlist to identify chunks and keytag from the seek point.
摘要翻译：为由DTCP转换的HLS流视频提供了进行特技播放操作的过程。当从HLS客户端播放器接收到HLS GET消息时，系统服务器提供修改的SEEK操作。对于该过程，从HLS客户端播放器提供DLNA报头，将其包括在HLS GET消息中。 HLS客户端还提供DLNA范围请求，其请求构成所需视频的块的范围以及需要搜索操作的搜索点。 HLS服务器识别HLS GET消息和DLNA RANGE REQUEST的DLNA报头，并使用元数据字段获得组成记录视频范围的块的范围。然后，服务器生成具有与搜索操作对应的块和密钥标签的新HLS播放列表。服务器将从搜索点和滚动播放列表中提供块，以从查找点识别块和密钥标签。

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