Portable dictating machine
US4870516A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1987 |
| Grant date | Sep 26, 1989 |
| Priority date | — |
| Expiry date | Mar 20, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B25/063
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A tape drive system for a dictating machine, particularly a portable dictating machine of a size suitable to be held in one hand. The dictating machine has a compartment which receives a tape cassette having a pair of reels, and a pair of driving spindles engage with the tape reels for driving the latter. A tape drive capstan and back-up roller are located adjacent the tape cassette compartment. A motor is located at the opposite end of the dictating machine from the tape cassette compartment, and a multi-stage speed reduction belt and pulley drive system is located between the motor and the drive capstan for simultaneously driving the drive capstan and the tape reel driving spindles at a uniform rate of speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.