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1. 发明授权

US4893339A Secure communication system 失效
标题翻译：安全通信系统
公开(公告)号：US4893339A
公开(公告)日：1990-01-09
申请号：US903360
申请日：1986-09-30
申请人： Michael W. Bright , Eric F. Ziolko , Alan L. Wilson , Michelle M. Bray , Harry A. Hennen , David L. Weiss
发明人： Michael W. Bright , Eric F. Ziolko , Alan L. Wilson , Michelle M. Bray , Harry A. Hennen , David L. Weiss
IPC分类号： H04K1/02 , H04L9/12 , H04K1/00
CPC分类号： H04L9/12 , H04K1/02 , H04L9/0656 , H04L2209/34
摘要： Disclosed is a synchronous secure communication system wherein an information signal is encrypted in an encryption means. The encrypted signal is compressed to allow the insertion of a synchronization signal, and the combined signals are transmitted. At the receiver, the synchronization signal is extracted and used to synchronize the receiver to the incoming data stream thereby improving receiver sensitivity and range.
摘要翻译：公开了一种同步安全通信系统，其中信息信号在加密装置中被加密。加密信号被压缩以允许插入同步信号，并且传输组合的信号。在接收机处，同步信号被提取并用于使接收机与输入数据流同步，从而提高接收机的灵敏度和范围。

2. 发明授权

US4893308A Method and apparatus for time companding a digital voice signal 失效
标题翻译：用于时间压缩数字语音信号的方法和装置
公开(公告)号：US4893308A
公开(公告)日：1990-01-09
申请号：US903315
申请日：1986-09-03
申请人： Alan L. Wilson , Michael W. Bright , Michelle M. Bray , Eric F. Ziolko , David L. Weiss
发明人： Alan L. Wilson , Michael W. Bright , Michelle M. Bray , Eric F. Ziolko , David L. Weiss
IPC分类号： H04B1/66 , H04L7/04
CPC分类号： H04L7/04 , H04B1/662
摘要： Disclosed is a method and apparatus for time companding a digital voice signal wherein, single bits are periodically removed from the digital voice signal, which is then compressed thereby forming a contiguous area of removed bits. A synchronization signal is inserted into this area and the combined signal is transmitted. At the receiver, the synchronization signal is extracted and is used to synchronize the receiver. The digital voice signal is then expanded and the removed bits are predicted and replaced.
摘要翻译：公开了一种用于时间压缩数字语音信号的方法和装置，其中从数字语音信号周期性地移除单个比特，然后将其压缩，从而形成连续的去除比特的区域。将同步信号插入该区域，并传送组合信号。在接收机处，提取同步信号并用于同步接收机。然后数字语音信号被扩展，并且去除的位被预测和替换。

3. 发明授权

US4667327A Error corrector for a linear feedback shift register sequence 失效
标题翻译：线性反馈移位寄存器序列的误差校正器
公开(公告)号：US4667327A
公开(公告)日：1987-05-19
申请号：US719385
申请日：1985-04-02
申请人： Michael W. Bright , Eric F. Ziolko , Alan L. Wilson
发明人： Michael W. Bright , Eric F. Ziolko , Alan L. Wilson
IPC分类号： G01R31/3185 , G06F11/18 , H03M13/23 , H03M13/43 , G06F11/10
CPC分类号： G06F11/183 , G01R31/31853 , H03M13/23 , H03M13/43
摘要： Disclosed is an error corrector for a linear feedback shift register sequence employing an open loop linear feedback shift register (LFSR) having selected bits "tapped" and combined to form a feedback signal. The taps implement an orthogonal convolutional code that is inherently redundant, therefore, the transmission of parity bits is not required. The feedback signal is combined with the received synchronization signal to form an error estimate that is temporarily stored in a syndrome register. By majority voting a selected outputs of the syndrome register a reliable determination of a received error can be made. Once an error determination is made, a correction signal is generated to correct the bit in error thereby providing a high probability of initiating and maintaining synchronization.
摘要翻译：公开了一种使用具有选择的位“抽头”并组合以形成反馈信号的开环线性反馈移位寄存器（LFSR）的线性反馈移位寄存器序列的误差校正器。抽头实现固有冗余的正交卷积码，因此不需要奇偶校验位的传输。反馈信号与接收的同步信号组合，形成临时存储在校正子寄存器中的误差估计。通过多数表决选择的校正子寄存器的输出，可以确定接收到的错误。一旦作出错误确定，就产生校正信号以纠正错误的位，从而提供启动和维持同步的高概率。

4. 发明授权

US4747105A Linear feedback sequence detection with error correction 失效
标题翻译：线性反馈序列检测与纠错
公开(公告)号：US4747105A
公开(公告)日：1988-05-24
申请号：US903335
申请日：1986-09-03
申请人： Alan L. Wilson , Michael W. Bright , Eric F. Ziolko
发明人： Alan L. Wilson , Michael W. Bright , Eric F. Ziolko
IPC分类号： H03M13/33 , H04L7/04 , G06F11/10
CPC分类号： H03M13/33 , H04L7/043 , H04L7/048
摘要： A detector locates a shift register sequence within a digital data stream by correlating the data stream with a sequence generated locally from a portion of the data stream. Error correction circuitry estimates errors that may have corrupted the sequence during transmission across a noisy channel and corrects them to the extent possible. The data stream and local sequence are correlated during an interval that is shifted either ahead or behind the portion of the error-corrected data stream used to initialize the local sequence generator, thereby avoiding the region during which short-term correlation between the data stream and local sequence would otherwise cause false indications of detection when only noise or random data is being received.
摘要翻译：检测器通过将数据流与从数据流的一部分本地生成的序列相关联来定位数字数据流内的移位寄存器序列。误差校正电路估计可能在穿过嘈杂信道的传输期间损坏序列的错误，并尽可能地校正它们。数据流和本地序列在被用于初始化本地序列发生器的纠错数据流的部分之前或之后移动的间隔期间相关，从而避免数据流和数据流之间的短期相关性否则当仅接收到噪声或随机数据时，本地序列将导致错误的检测指示。

5. 发明授权

US5729559A Method and apparatus for correcting errors using multiple estimates 失效
标题翻译：使用多个估计来校正错误的方法和装置
公开(公告)号：US5729559A
公开(公告)日：1998-03-17
申请号：US411243
申请日：1995-03-27
申请人： Michael W. Bright , Eric F. Ziolko
发明人： Michael W. Bright , Eric F. Ziolko
IPC分类号： H03M13/23 , H03M13/43 , H03M13/12
CPC分类号： H03M13/43 , H03M13/23
摘要： An apparatus for and method of correcting errors in a received signal comprised of a rate-one orthogonal convolutional code generated by an LFSR involved feeding (403) a received signal into a multiple-stage shift register (201). Estimates of one of the stages of the shift register are performed by estimators (203, 205, 207, 209, 211, 213, and 215) and are based on the outputs of several of the other stages of the shift register (201). These estimates are combined on a bit-by-bit basis to provide a corrected received signal, which is used as the output of the shift register (201).
摘要翻译：一种用于校正由LFSR生成的速率一正交卷积码的接收信号中的误差的装置和方法，包括将接收的信号馈送（403）到多级移位寄存器（201）中。估计器（203,205,207,209,211,213和215）执行移位寄存器的一个级的估计，并且基于移位寄存器（201）的其他几个级的输出。这些估计被逐位地组合以提供用作移位寄存器（201）的输出的校正接收信号。

6. 发明授权

US4914697A Cryptographic method and apparatus with electronically redefinable algorithm 失效
标题翻译：具有电子重定义算法的加密方法和装置
公开(公告)号：US4914697A
公开(公告)日：1990-04-03
申请号：US150876
申请日：1988-02-01
申请人： Ezzat A. Dabbish , John P. Byrns , Michael J. McClaughry , Larry C. Puhl , Daniel P. Brown , Eric F. Ziolko , Michael W. Bright
发明人： Ezzat A. Dabbish , John P. Byrns , Michael J. McClaughry , Larry C. Puhl , Daniel P. Brown , Eric F. Ziolko , Michael W. Bright
IPC分类号： H04L9/10 , G06F21/00 , H04K1/00 , H04L9/06 , H04L9/14
CPC分类号： G06F21/72 , H04K1/00 , H04L9/06 , H04L2209/26
摘要： A cryptographic apparatus for encrypting and decrypting digital words includes a mechanism that permits a cipher algorithm to be electronically stored after the manufacture of the apparatus. The storing mechanism includes at least one electrically erasable, programmable gate array containing a portion of the cipher algorithm and at least one random access memory device coupled to the array for storing digital data generated by the algorithm. A mechanism which is coupled to the gate array and memory device controls the execution of the algorithm for each digital word thereby decrypting encrypted digital words and encrypting non-encrypted digital words.
摘要翻译：用于对数字字进行加密和解密的加密装置包括允许在制造装置之后电子地存储加密算法的机制。存储机构包括至少一个包含密码算法的一部分的电可擦除可编程门阵列，以及耦合到该阵列的至少一个随机存取存储器件，用于存储该算法生成的数字数据。耦合到门阵列和存储器装置的机构控制每个数字字的算法的执行，从而解密加密的数字字和加密未加密的数字字。

7. 发明授权

US5161189A Encryption and decryption of chained messages 失效
标题翻译：链接消息的加密和解密
公开(公告)号：US5161189A
公开(公告)日：1992-11-03
申请号：US667151
申请日：1991-03-11
申请人： Michelle M. Bray , Michael W. Bright , Hans C. Sowa
发明人： Michelle M. Bray , Michael W. Bright , Hans C. Sowa
IPC分类号： H04L9/08 , H04L9/12
CPC分类号： H04L9/12 , H04L9/083 , H04L9/0891 , H04L2209/80
摘要： A single sync field (501) and multiple messages or message segments (503, 507, 511, and 515) are chained (407) together and encrypted (407) as a whole. When this encrypted chained message is received, it is decrypted as a whole (605), or in part (613) by setting up (609) and filling (611) a holding register with the encryption state of the encrypting device.
摘要翻译：作为整体，单个同步字段（501）和多个消息或消息段（503,507,511和515）被链接（407）在一起并加密（407）。当接收到加密的链接消息时，通过设置（609）并填充（611）具有加密设备的加密状态的保持寄存器，将其作为整体（605）或部分（613）进行解密。

8. 发明授权

US4754457A Digital sequence polarity detection with adaptive synchronization 失效
标题翻译：数字序列极性检测与自适应同步
公开(公告)号：US4754457A
公开(公告)日：1988-06-28
申请号：US903326
申请日：1986-09-03
申请人： Michael W. Bright , Alan L. Wilson
发明人： Michael W. Bright , Alan L. Wilson
IPC分类号： H04L7/04 , H04L25/06 , H04L7/06
CPC分类号： H04L25/061 , H04L7/042 , H04L7/043
摘要： The transmitter in a digital communication system sends a synchronization sequence that uniquely identifies the polarity of the received data. From the received data, the receiver produces non-inverted and inverted polarity data streams that couple to like synchronization detectors. Only the detector to which the correct polarity data stream is coupled responds. Logic circuitry determines which detector responds and, accordingly, selects the polarity of received data to be further processed by the receiver.After polarity is established, both detectors monitor the received data stream of the selected polarity to determine whether synchronization shifts after having been initially established. Monitoring continues until terminated by other receiver circuits.
摘要翻译：数字通信系统中的发射机发送唯一标识接收数据的极性的同步序列。从接收到的数据中，接收器产生耦合到相似同步检测器的非反相和反相极性数据流。只有正确极性数据流耦合到的检测器才能响应。逻辑电路确定哪个检测器作出响应，并因此选择要由接收机进一步处理的接收数据的极性。在极性建立之后，两个检测器都监视所选极性的接收数据流，以确定在初始建立之后是否同步移位。监控继续，直到其他接收机电路终止。

9. 发明授权

US5404403A Key management in encryption systems 失效
标题翻译：加密系统中的密钥管理
公开(公告)号：US5404403A
公开(公告)日：1995-04-04
申请号：US942864
申请日：1991-11-12
申请人： Michael W. Bright , David L. Weiss , Kevin M. Cutts , Robert J. Locascio
发明人： Michael W. Bright , David L. Weiss , Kevin M. Cutts , Robert J. Locascio
IPC分类号： H04L9/08 , H04L9/00
CPC分类号： H04L9/083 , H04L9/0891 , H04L2209/80
摘要： A key management system for encryption keys removes the effect of secure communications loss during a rekey period in a secure communications system. Use of key indexes to partition encryption keys into usable subgroups such that during a rekey period, continuous secure communications are maintained throughout the entire secure communications system.
摘要翻译：用于加密密钥的密钥管理系统消除了在安全通信系统中的重新密钥期间的安全通信丢失的影响。使用关键索引将加密密钥分成可用的子组，使得在重新密钥期间，在整个安全通信系统中保持连续的安全通信。

10. 发明授权

US6141756A Apparatus and method of reading a program into a processor 失效
标题翻译：将程序读入处理器的装置和方法
公开(公告)号：US6141756A
公开(公告)日：2000-10-31
申请号：US067110
申请日：1998-04-27
申请人： Michael W. Bright , Kenneth Carl Fuchs , Kelly Jo Marquardt
发明人： Michael W. Bright , Kenneth Carl Fuchs , Kelly Jo Marquardt
IPC分类号： G06F21/22 , G06F1/00 , G06F21/00 , H04L9/32 , G06F11/30
CPC分类号： G06F21/6209 , G06F21/572 , G06F21/575 , G06F2211/007 , G06F2211/1097 , G06F2221/2147
摘要： The following describes an apparatus for and method of providing a secure method of downloading a program into a processor (101) from a device (103) external to the processor (101). The program may be encrypted (207) prior to its entry into the external device (103). The program may also have authentication information added (203 and 207) to it. Authentication information may be provided on an unencrypted and/or an encrypted program. The processor (101) decrypts (307) and/or successfully authenticates (311) the program before allowing the program to be executed by the processor (101).
摘要翻译：以下描述了一种用于提供从处理器（101）外部的设备（103）将程序下载到处理器（101）中的安全方法的装置和方法。程序可以在其进入外部设备（103）之前被加密（207）。程序还可以添加认证信息（203和207）。可以在未加密和/或加密的程序上提供认证信息。处理器（101）在允许由处理器（101）执行程序之前解密（307）和/或成功验证（311）程序。

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