Microwave data transmission apparatus
US4926182A · kind A · utility
277Cited by
18References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1987 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | May 29, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C9/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A microwave data transmission apparatus adapted to transmit and receive information by microwaves, which the identification tag is made smaller in size and lighter in weight to considerably improve the convenience in setting operation for use in many applications, can be applied for the production control within the factory or the control for entering and leaving the room by a person having an identification tag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.