Stepping motor drive control device for an electronic apparatus
US5744929A · kind A · utility
51Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 3, 1996 |
| Grant date | Apr 28, 1998 |
| Priority date | — |
| Expiry date | Jan 3, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/04794
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a copier or similar electronic apparatus including a stepping motor, a device for controlling the drive of the motor loads control data for acceleration, constant-speed drive and deceleration stored in a ROM (Read Only Memory) or a RAM (Random Access Memory). The device controls the motor via a motor driver with the control data. This successfully reduces the load on a CPU (Central Processing Unit) due to the acceleration, constant-speed drive and deceleration of the motor, thereby implementing high-speed and accurate drive of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.