Method and apparatus for automatic repetition rate assignment in a remote control system
US6456674B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1998 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Sep 28, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method and an apparatus for remotely controlling devices, more particularly to a system and method for controlling locomotives in a railway environment using radio frequency signals. This invention makes use of equalized pseudo-random transmission intervals obtained using a random number generator to regulate the times at which the signals are sent from a transmitter to a receiver. The use of these randomly generated transmission intervals allows eliminating the requirement of having an operator manage these intervals for transmitters in simultaneous operation. The invention also provides communication systems operating concurrently with substantially uniform response times by constraining the values of the transmission intervals to lie within a given range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.