Record disc recording system with a distortion signal

Details Record disc recording system with a distortion signal Record disc recording system with a distortion signal

1975-07-28

1977-03-01

Cardillo, Jr., Raymond F.

G11B 300

Patent

active

040103331

ABSTRACT:
A record disc recording system comprises a circuit for producing a signal which is substantially 2V.sup.2 . a, where; V is the relative velocity between a cutter head and a disc, and a is a specific coefficient, which varies in accordance with the traversing of the cutter head over the disc. A circuit produces a distortion signal {f'(t)}.sup.2 /{2V.sup.2. a - f"(t)} (wherein .vertline.2V.sup.2. a.vertline.>.vertline. f"(t).vertline.) responsive to an original signal f(t) and to the signal 2V.sup.2. a. Another circuit produces a recording signal g(t) with distortion (where g(t) = f(t) + {f'(t)}.sup.2 /2 {2V.sup.2. a - f"(t)}) responsive to the original signal f(t) and to the distortion signal {f'(t)}.sup.2 /{2V.sup.2. a - f"(t)}. A cutter head records the signal g(t) on a record disc.

REFERENCES:
patent: 3229048 (1966-01-01), Fox
patent: 3403233 (1968-09-01), Cooper
patent: 3457374 (1969-07-01), Klemp et al.
patent: 3484566 (1969-12-01), Kuriyagawa et al.
Kantrowitz, High--Frequency Stylus--Groove Relationships in Phonograph Cartridge Transducers, Jour. of the AES, July, 1963, vol. 11, No. 3, pp. 250-262.
Redlich et al., A New Method of Disc Recording for Reproduction with Reduced Distortion: The Tracing Simulator, J. of the AES, vol. 13, No. 2, Apr. 1965, pp. 111-118.
Shiga, Deformation Distortion in Disc Records, Jour. of the AES, vol. 14, No. 13, July 1966, pp. 208-217.

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