Triangular piezoelectric transducer for recording video informat

Details Triangular piezoelectric transducer for recording video informat Triangular piezoelectric transducer for recording video informat

1975-09-12

1977-01-11

Konick, Bernard

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

17910041P, 1791004C, 310 96, 310 95, 310 82, 310 83, G11B 300, H04R 1704, H01V 700

Patent

active

RE0291137

ABSTRACT:
A cutterhead assembly suitable for forming a topographic signal-representative pattern in a recording medium such as a disc is constructed with non-parallel external surfaces so as to provide a response relatively free of undesired resonant modes over a relatively wide frequency range. The cutterhead includes a cutting stylus supported in a stylus mount. The stylus mount and therefore the stylus are driven by a piezoelectric element which is mounted on a supporting pedestal. A resilient mounting means is utilized to fasten the supporting pedestal to a mounting bracket.

REFERENCES:
patent: 1444147 (1921-04-01), Zaayer
patent: 1525823 (1925-02-01), Nicolson
patent: 2160793 (1938-01-01), Dally
patent: 2170318 (1937-04-01), Cady
patent: 2286178 (1940-02-01), Kornei
patent: 2513269 (1950-07-01), Bauer
patent: 2540412 (1951-02-01), Adler
patent: 3652809 (1972-03-01), Dickopp
patent: 3691318 (1972-09-01), Schuller
patent: 3805100 (1974-04-01), Klemp

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