Patent · US Expired

Rotary scanning device

US5422771A · kind A · utility

4Cited by

4References

18Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Manfred Willomitzer · Frankfurt, DE
Ralf Matwin · Weiterstadt, DE
Hartmut Willmann · Camburg, DE

Key dates

Filing date	Jun 22, 1993
Grant date	Jun 6, 1995
Priority date	—
Expiry date	Jun 22, 2013

Classification

Technology area (CPC G)Physics
CPC primaryG11B33/14
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A rotary scanning device is proposed with a rotary body carrying at its periphery a plurality of magnetic recording heads which can be driven by associated recording amplifiers. The individual recording amplifiers are accommodated on circuit boards which are mounted in a paddle-wheel configuration between two annular conductor boards by means of holders. The two annular conductor boards are rotationally locked to the rotary body. The circuit boards have a forward inclination in the direction of rotation of the rotary body.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.