Noise reduction circuit for multiple gap magnetic head for automatic typewriter
US4157574A · kind A · utility
6Cited by
1References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 16, 1977 |
| Grant date | Jun 5, 1979 |
| Priority date | — |
| Expiry date | May 16, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J3/50
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A noise reductive circuit for use with an automatic typewriter of the type that uses a multiple inductance, multiple magnetic gap head for translating information to and from a magnetic recording media is disclosed which includes an electric circuit between one of the inductances to the signal handling channel of the other of the inductances so as to couple to it a noise reducing signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.