会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 7. 发明授权
    • Method and apparatus for providing error correction to symbol level codes
    • 用于向符号级代码提供纠错的方法和装置
    • US5161163A
    • 1992-11-03
    • US741021
    • 1991-08-06
    • Douglas C. BossenChin-Long ChenMu-Yue Hsiao
    • Douglas C. BossenChin-Long ChenMu-Yue Hsiao
    • G06K19/14H03M13/07
    • G06K19/14H03M13/07
    • An error correction coding system employs a single check symbol from an arbitrary sequence of information symbols to provide single error correction at the symbol level. The sequence of information symbols may in fact also be arbitrarily long. The coding system of the present invention provides both a method and apparatus for encoding the check symbol and a method and apparatus for error correction based upon the single coded symbol character. The system is particularly applicable for use in conjunction with bar code recognition systems but is in fact applicable to a broad range of coding systems, including optical character recognition and ordinary alphanumeric codes. The system is also extendable to any system employing an odd number of code symbols that may be present in a single character position.
    • 纠错编码系统采用来自任意信息符号序列的单个检查符号,以在符号级提供单个纠错。 信息符号的序列实际上也可以是任意长的。 本发明的编码系统提供了一种用于对该校验符号进行编码的方法和装置以及用于基于该单个编码符号字符进行纠错的方法和装置。 该系统特别适用于与条形码识别系统结合使用,但实际上适用于广泛的编码系统,包括光学字符识别和普通字母数字代码。 该系统还可以扩展到采用可能存在于单个字符位置中的奇数个代码符号的任何系统。
    • 8. 发明授权
    • Single width bar code with end code providing bidirectionality
    • 单宽条形码,带终端代码提供双向性
    • US5380998A
    • 1995-01-10
    • US072260
    • 1993-06-03
    • Douglas C. BossenChin-Long ChenMu-Yue HsiaoJames M. Mulligan
    • Douglas C. BossenChin-Long ChenMu-Yue HsiaoJames M. Mulligan
    • G06K1/12G06K7/10G06K19/06
    • G06K19/06028G06K2019/06253
    • A single width bar code is appended with an end mark which includes a blank interval and a bar. The resulting bar code is bidirectional and inherently self clocking so as to be particularly useful in the identification of semiconductor wafers in very large scale integrated circuit manufacturing processes. The codes described are robust, reliable, and highly readable even in the face of relatively high variations in scanning speed. The codes are also desirably dense in terms of character representations per linear measurements, an important consideration in semiconductor manufacturing wherein space on chips and wafers is at a premium. Additionally, a preferred embodiment of the present invention exhibits a minimum number for the maximum number of spaces between adjacent bars in code symbol sequences.
    • 单个宽度条形码附加结尾标记,其中包括空白间隔和条形。 所得到的条形码是双向的并且固有地自我计时,以便在非常大规模的集成电路制造过程中的半导体晶片的识别中特别有用。 所描述的代码是稳健,可靠和高度可读的,即使在扫描速度相对较高的变化的情况下。 代码在每个线性测量的字符表示方面也是令人满意的,这在半导体制造中是重要的考虑因素,其中芯片和晶片上的空间是非常重要的。 另外,本发明的一个优选实施例在代码符号序列中显示相邻条之间的最大空格数的最小数目。
    • 9. 发明授权
    • Double error correction using single error correcting code
    • 使用单纠错码双纠错
    • US4319357A
    • 1982-03-09
    • US103633
    • 1979-12-14
    • Douglas C. Bossen
    • Douglas C. Bossen
    • G06F11/10G06F12/16
    • G06F11/1048G06F11/1024
    • A single error correcting double error detecting (SEC/DED) error correcting code for a memory is used to correct one fixed error and one transitory error in a data word stored in the memory. The erroneous data word and syndrome generated therefrom by the error correcting code circuitry are saved while the memory location of the flawed word is checked to determine the location of the one fixed error using a ancillatory error correction technique. A syndrome is then generated for the word assuming only a single fixed error in the location determined using the ancillatory technique. Thereafter, the generated and saved syndromes are exclusive OR'd together to obtain another syndrome locating the position of the transitory error. With both errors located, the word is corrected by inverting the erroneous data bits.
    • 用于存储器的单个纠错双错误检测(SEC / DED)纠错码用于校正存储在存储器中的数据字中的一个固定错误和一个暂时错误。 由错误校正码电路产生的错误数据字和校正子被保存,同时检查有缺陷的字的存储器位置,以使用辅助纠错技术确定一个固定误差的位置。 然后,对于假设在使用辅助技术确定的位置中仅存在单个固定误差的单词,生成一个综合征。 此后,生成和保存的综合征被排列在一起以获得定位临时错误位置的另一种综合征。 在两个错误位置中,通过反转错误的数据位来纠正该字。
    • 10. 发明授权
    • Deterministic permutation algorithm
    • 确定性置换算法
    • US4461001A
    • 1984-07-17
    • US362925
    • 1982-03-29
    • Douglas C. BossenMu-Yue Hsiao
    • Douglas C. BossenMu-Yue Hsiao
    • G06F12/16G06F11/10G11C29/00G06F11/00
    • G11C29/88G06F11/1024
    • Swapping of bits between different words of a memory is accomplished by reference to data on bad bits in the memory. This data controls address inputs to each bit in a memory word so that any word with multiple uncorrectable data is changed to a correctable data word by placing one or more of the bad bits in the word into another word of the memory. The swapping is done by an exclusionary process which deselects certain combinations of addresses thereby limiting the selection process to other combinations. The process can involve categorizing of failures in accordance with type and performing algorithm operations which identify combinations of bit addresses that would result in combining the failures so that there are more errors in any memory word than would be correctable by the error correction code monitoring the memory.
    • 通过参考存储器中不良位的数据来实现存储器的不同字之间的位的交换。 该数据控制存储器字中每个位的地址输入,使得具有多个不可校正数据的任何字通过将该字中的一个或多个坏位置换为存储器的另一个字来改变为可校正数据字。 交换是通过排除过程来完成的,其取消选择某些地址组合,从而将选择过程限制到其他组合。 该过程可以包括根据类型进行故障分类和执行算法操作,其识别将导致组合故障的位地址的组合,使得在任何存储器字中存在比通过监视存储器的纠错码可校正的更多的错误 。