Moveable capstan assembly for selectively contacting a media, which assembly includes a tachometer sensor
US5646798A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 14, 1996 |
| Grant date | Jul 8, 1997 |
| Priority date | — |
| Expiry date | Feb 14, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B15/54
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A translatable capstan/tachometer assembly for use, for example, in transporting a magnetic media in a data record/reproduce apparatus, includes a capstan rotatably coupled to a tachometer unit. The assembly is supported for movement from an initial, unthreaded media position within a threading cavity of a data cassette, to a threaded or locked working position. The media path is arranged so that moving the capstan/tachometer assembly into the threaded position causes the media to wrap around the capstan with a substantial wrap angle. In play, record, jog or variable speed operational modes, movement is provided between a motor/disc assembly and the capstan/tachometer assembly to rotatably drive the capstan. In a high speed shuttle mode, the motor/disc assembly is disengaged but the capstan/tachometer assembly remains in contact with the media, thereby still providing tape speed information via the integral tachometer unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.