Data storage having environmental communication module (ECM)
US6597232B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2002 |
| Grant date | Jul 22, 2003 |
| Priority date | — |
| Expiry date | Mar 28, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2089
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A multiplexer having a plurality of multiplexer devices. Each one of the devices is adapted to couple a selected one of a plurality of 2c output/input ports, where C is an integer, to an input/output port of such device when an N bit device address code fed to such device matches an N bit device address wired to the device. The one of the output/input ports is selected in accordance with a C bit channel select code fed to the device. The multiplexer includes a plurality of cascaded levels of such devices, a first one of such levels having a plurality of [2N−M], where M is a non-zero integer less than 2N of the devices. A common port for the multiplexer is connected to the input/output ports of the plurality of the devices in the first level, The input/output ports of the devices in a succeeding level are connected to the output/input ports of the devices in the preceding level of devices. In one embodiment, N is 3 and M is 5. In one embodiment, each one of the devices passes an I2C signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.