Analog and digital recording apparatus
US3949402A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1975 |
| Grant date | Apr 6, 1976 |
| Priority date | — |
| Expiry date | Feb 3, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D15/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A thermal recorder having an analog recording stylus and a digital recording head uses a stepping drive means for intermittently driving a thermally responsive recording medium past the analog recording stylus and digital recording head. The analog recording stylus is maintained in contact with the intermittently driven recording medium which the digital recording head is mounted on one end of a pivoted support arm. A solenoid is connected to the other end of the support arm and is selectively energized to bring the digital recording head into contact with the recording medium during the interval between the stepped movements of the recording medium when the recording medium is at rest.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.