公开(公告)号：WO1981000160A1

公开(公告)日：1981-01-22

申请号：PCT/US1980000843

申请日：1980-07-07

Applicant: SOUNDSTREAM INC

Inventor： SOUNDSTREAM INC ,  ROTHAAR B ,  STOCKHAM T

IPC: G06F11/20

CPC classification number: G11B27/3027 ,  G11B20/1803

Abstract: An apparatus and method for processing of digital information that includes duplication of information from each channel of a multi-channel recorder on main and backup tracks and provides a combination of error detection apparatus and procedures where data groupings or words on each track are individually subject to four separate tests for detecting errors and provides, from that analysis, for a selection of most likely correct data for further processing. Additionally, further system reliability is obtained by providing circuitry whereby a detected error activates a selection of data groupings coming before and after the detected error, providing where appropriate, for switching from main to backup track data over a certain number of data groupings. There is further provided a unique synchronization coding format with circuitry and a procedure for its use for rapidly acquiring synchronization coding in a data flow and includes an arrangement for averaging the content of first-in-first buffes of each track for controlling tape speed to enable a smooth over-dubbing of information recorded at different times on separate tracks.

Abstract translation: 一种用于处理数字信息的装置和方法，其包括在主和备用磁道上的多通道记录器的每个通道的信息的复制，并且提供错误检测装置和程序的组合，其中每个磁道上的数据分组或单词单独受 用于检测错误的四个单独的测试，并从该分析中提供用于进一步处理的最可能的正确数据的选择。 此外，通过提供电路可以获得进一步的系统可靠性，由此检测到的错误激活在检测到的错误之前和之后的数据分组的选择，在适当的地方提供在一定数量的数据分组上从主要到备用轨道数据的切换。 还提供了一种独特的同步编码格式，其电路和程序用于在数据流中快速获取同步编码，并且包括用于平均每个磁道的先进先出的内容的内容以控制磁带速度以使能 在不同的轨道上记录在不同时间的信息的顺利过度配音。