Bar code reader, scaling device and scaling method
US6488207B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1999 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Dec 29, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q20/208
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
A bar code reader includes bar code processing units (10, 11) for generating a bright/dark pattern forming a bar code (40) by optically scanning a bar code forming surface of an object (4), converting into plural categories of module values indicating widths of the respective areas, and demodulating the bar code into character data, a scaling unit for creating scale data by scaling a weight of the object to be sold by weight, a adjustment control unit (11) to perform zero-setting in response to a request for initializing the scaling unit, and a weight change detecting unit (11) for judging at least one of an increment change and a decrement change from zero in weight, and making a corresponding piece of scale data visibly displayed when in the increment change and making an absolute value of a corresponding piece of scale data visibly displayed when in the decrement change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.