Thermal recording apparatus
US4364063A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1981 |
| Grant date | Dec 14, 1982 |
| Priority date | — |
| Expiry date | Feb 26, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D15/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The thermal recording apparatus of the present invention includes a plurality of thermal resistive elements placed in a line, a plurality of drive circuits connected to the thermal resistive elements to drive the thermal resistive elements and a plurality of latch circuits connected to the drive circuits to supply recording signals in order to the drive circuits. A first memory receives and stores incoming recording signals formed by a series of 1 and 0 signals. These recording signals are supplied to the latch circuits. A second memory stores previously received recording signals which are output from the first memory. A comparator then compares the incoming recording signals with the previously received recording signals after the first memory supplies the incoming recording signals to the latch circuits. The comparator generates modified recording signals. The modified recording signals include 0 signals which are generated when 1 signals in the incoming recording signals follow 1 signals in the previously received recording signals. These modified recording signals are supplied to the latch circuits after the incoming recording signals are supplied to the drive circuits. Thus, …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.