Driving apparatus, and control information storage body and protection circuit therefor
US5014320A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 1989 |
| Grant date | May 7, 1991 |
| Priority date | — |
| Expiry date | May 17, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R3/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A driving apparatus for driving an electro-acoustic transducer comprises a main body portion and a control information storage body which is arranged independently of the main body portion and is selectively separated from or coupled to the main body portion, as needed. The control information storage body stores a real circuit or information for setting electrical characteristics of the driving apparatus. A driving apparatus further comprises a protection circuit for preventing a disadvantageous result of the driving apparatus and a load caused by an unstable operation and the like when the control information storage body is attached/detached to/from the main body portion or when an inappropriate control information storage body is loaded onto the main body portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.