Magnetic recording and reproducing apparatus and method of recor

Details Magnetic recording and reproducing apparatus and method of recor Magnetic recording and reproducing apparatus and method of recor

1989-12-11

1992-03-17

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Converting an analog signal to digital form for recording;...

360 362, G11B 509

Patent

active

050973649

ABSTRACT:
A magnetic recording and reproducing apparatus records audio signals digitized by rotary heads (9, 10) on a magnetic tape (12), and reproduces the recorded audio signals. Clock signals and time code data are extracted from externally inputted time code signals by means of a demodulating circuit (72), and phase difference between the frame clock signals and the reference signal is detected by a phase difference detecting circuit (74). A microcomputer (23) assigns the phase difference information and the time code data to sub code packs and stores the same in the memory circuit (40). The stored phase difference information and the time code data are recorded on the magnetic tape. In reproduction, the microcomputer outputs and original time code signals responsive to the reproduced phase difference information and the time code data.

REFERENCES:
patent: 4675724 (1987-06-01), Wagner
patent: 4733311 (1988-03-01), Yoshinaka
R. Iwashita, "The Outline of DAT Standardization", Journal of Institute of Electronics, Information and Communication Engineers of Japan (Jan. 1987), pp. 63-66.
H. Yamazaki et al, "Time code in sub data area of R-DAT," Audio Engineering Society Preprint from the Journal of the Audio Engineering Society (Mar. 1-4, 1980), pp. 1-18.

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