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
    • 63. 发明公开
    • Data transmission method for interleaved data
    • Datenübertragungsverfahrenfürverschaltelte Daten。
    • EP0310089A2
    • 1989-04-05
    • EP88116123.6
    • 1988-09-29
    • SONY CORPORATION
    • Sako, YoichiroOgawa, Hiroshi
    • G11B20/18
    • H03M13/2703G11B20/1809H03M13/2924
    • In a method for transmitting interleaved data, when the respective data blocks (DB n ) to be transmitted are interleaved and augmented by the error correcting parity codes (Pi, Qi) before being transmitted on the transmission channel, a prescribed number of dummy data are provided between the respective data blocks (DB n ) so that the data block (DB n ) and the neighboring data blocks (DB n-1 , DB n+1 ) are not in the interleaving relation. In this manner, data addition, correction and substitution can be made easily for each data block or a group of blocks without influencing the error correction parity codes of the remaining block data.
    • 在用于发送交织数据的方法中,当在传输信道上发送之前要发送的各个数据块(DBn)被交错并由纠错奇偶校验码(Pi,Qi)增加时,提供规定数量的伪数据 (DBn)和相邻数据块(DBn-1,DBn + 1)之间的数据块(DBn)不在交织关系中。 以这种方式,可以容易地对每个数据块或一组块进行数据添加,校正和替换,而不影响剩余块数据的纠错奇偶校验码。
    • 65. 发明公开
    • Method for data transmission
    • 数据传输方法。
    • EP0094671A2
    • 1983-11-23
    • EP83104820.2
    • 1983-05-16
    • SONY CORPORATION
    • Odaka, KentaroSako, YoichiroKojima, YuichiNakano, KenjiMoriwaki, Hisayoshi
    • G11B5/09H03M13/00
    • G11B20/1809
    • In the recording/reproducing of digital audio signals, errors are detected and corrected by using two parity words, one arranged at the center of the block formed of data words and the arranged at one end of the block. The probability that uncorrectable error will be present in the center of the block is relatively high, so placing the parity word there prevents loss of the more valuable data. Maximum correctable burst errors are determined by the length of the block, so placing the other parity word on the end of the block lengthens it and improves burst error correction. The parity words are arranged as indicated before adding a cyclic redundancy check (CRC) code to the data signal and then modulation coding the signal before recording. During playback, the reproduced signal is demodulated and the CRC code used to detect errors for which error pointers are generated. The reproduced data is read into memories (3,4) in accordance with generated addresses and the pointers prevent the writing in of words found to be in error, which error words are subsequently corrected if possible using parity codes originally encoded into the signals prior to recording.