Solid state event recorder
USRE35590E · kind E · reissue
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1993 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Nov 3, 2013 |
Classification
- Technology area (CPC —)General
Abstract
A solid state event recorder having particular application to railroad locomotives has a plurality of interface modules to allow the collection of desired data over a period of time. Radio downloading of the data provided by a telemetry transmitter to wayside receivers is the primary way of downloading data. Alternative data downloading are provided by a removable memory module, a portable wireless data extractor and a laptop computer. The removable memory module is provided with its own backup battery power supply but normally derives its power from an inductive coupling to the solid state recorder. Data is read into the removable memory module from the solid state recorder via an inductive coupling, and data is read out of the removable memory module to the telemetry transmitter via another inductive coupling. Both the portable wireless data extractor and the laptop computer are used for maintenance purposes. The solid state recorder can be configured in a variety of ways and connected together as master and slave. For example, one recorder, acting as a master and functioning as the primary of operational recorder, can be connected to a second recorder, acting as a slave time syn…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.