System for inserting a synchronizing pattern in digital audio da

Details System for inserting a synchronizing pattern in digital audio da System for inserting a synchronizing pattern in digital audio da

1991-03-19

1993-03-30

Psitos, Aristotelis

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

360 51, 328 72, H04N 576, G11B 509, H03K 1700

Patent

active

051990180

ABSTRACT:
A system for inserting a synchronizing pattern in digital voice data on an optical disk comprising a synchronizing pattern input controller for generating the synchronizing pattern in accordance with a synchronizing pattern insert signal outputted from a microprocessor to control the serial data and the beat clock from the optical disk digital signal processor and indicate that inserting the synchronizing pattern has been completed. The synchronizing pattern input controller includes a clock generator, a timing controller, a counting unit, a synchronizing pattern generator, a control signal generator, and a switching unit. Therefore, the data having no synchronizing pattern such as the digital voice data loaded on the optical disk, which is outputted from the optical disk digital signal processor, can be normally inputted to the optical disk ROM decoder by the synchronizing pattern generated externally. Also, the synchronizing pattern can be inputted to the optical disk ROM decoder before the serial data stream is outputted from the optical disk digital signal processor.

REFERENCES:
patent: 4357702 (1982-11-01), Chase et al.
patent: 4641326 (1987-02-01), Tomisawa
patent: 4667318 (1987-05-01), Sugiyama et al.
patent: 4825403 (1989-04-01), Gershenson et al.
patent: 4984249 (1991-01-01), Long et al.

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