G - Physics – 11 – B
Patent
G - Physics
11
B
352/19.5
G11B 5/09 (2006.01) G11B 20/10 (2006.01) G11B 20/18 (2006.01) G11B 20/20 (2006.01) G11B 20/22 (2006.01) G11B 27/30 (2006.01) H04N 5/926 (2006.01) H04N 5/937 (2006.01)
Patent
CA 1198516
ABSTRACT OF THE DISCLOSURE A data reproducing apparatus for reproducing data recorded on multi-tracks, reproduces data within reproduced frame signals by simultaneously reproducing a plurality of tracks on a recording medium. The frame signal is constituted by the data obtained by subjecting an analog information signal to digital pulse modulation, and at least a synchronizing signal. Signals obtained by time-sequentially composing the frame signals in terms of frame signals are dispersed and recorded on the plurality of tracks on the recording medium. The data reproducing apparatus comprises a signal transducer for simultaneously reproducing the frame signals recorded on the recording medium from the plurality of tracks, a write-in address generating circuit provided in each of transmission systems for reproduced signals from each track of the plurality of tracks obtained in parallel from the signal transducer, for generating a write-in address indicating the number of bit of data within one frame signal from a counter which counts clock pulses having a period equal to the transmission bit rate, where the write-in address generating circuit is preset or cleared by a detection pulse obtained by detecting the synchronizing signal within the reproduced frame signals, a memory into which data within frame signals reproduced from each track among the plurality of tracks are written, and from which the written-in data are read out, and a memory control circuit for controlling the memory so as to successively and recursively apply the data within the frame signals reproduced from each track among the plurality of tracks and write in the data at the write-in addresses obtained from the write-in address generating circuit, and read out the written-in data of each of the tracks from the memory with the timing arranged after a predetermined time has elapsed.
412478
Mori Takaro
Yamada Yasuhiro
Marks & Clerk
Victor Company Of Japan Ltd.
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