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。

公开(公告)号：WO1980000760A1

公开(公告)日：1980-04-17

申请号：PCT/US1979000793

申请日：1979-09-27

Applicant: SOUNDSTREAM INC

Inventor： SOUNDSTREAM INC ,  STOCKHAM T

IPC: G11B05/09

CPC classification number: G06F11/1612 ,  G11B20/18

Abstract: Apparatus and techniques for converting analog data, preferably audio signals, to digital information, which digital information is preferably recorded from two separate main channels (11, 12) onto main tracks (22a, 22b) and includes a third or backup track (22c) for recording thereon partial or most significant portions of that information recorded on the main tracks. The invention involves apparatus and techniques of each data group on each main track and the backup track; checking (27) for synchronization codes arranged between data groups; and checking (30) for a match of that appropriate portion of the main track data against the data on the backup track, with, when potentially erroneous or questionable data is detected, the invention providing for comparison of main and backup track data groupings (31) for determining which is most likely correct or, in the case where neither data grouping is identifiable as most likely correct, the invention provides for substitution of last correct data or integration between good data. The preferred invention incorporates clocking at the signal input for data stabilization, and first-in-first-out circuitry (32) at the output for reducing the effects of wow and flutter to produce a very high quality conversion of digital to analog form to pass to a speaker system.

Abstract translation: 用于将模拟数据（优选音频信号）转换为数字信息的装置和技术，数字信息优选地从两个独立的主通道（11,12）记录到主轨道（22a，22b）上并且包括第三或备用轨道（22c） 用于在其上记录记录在主轨道上的该信息的部分或最重要部分。 本发明涉及每个主轨道和备用轨道上的每个数据组的装置和技术; 检查（27）用于在数据组之间布置的同步码; 并且当检测到潜在的错误或可疑的数据时，检查（30）用于主轨道数据的适当部分与备份轨道上的数据的匹配，本发明提供主和备份轨道数据分组（31）的比较 ），用于确定哪个最有可能是正确的，或者在数据分组无法被识别为最可能是正确的情况下，本发明提供替代最后的正确数据或在良好数据之间的集成。 优选的发明结合了用于数据稳定的信号输入的时钟和在输出处的先进先出电路（32），用于减少哇音和颤动的影响，以产生数字到模拟形式的非常高质量的转换以通过 到扬声器系统。