Bilateral power management system
US6529748B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1999 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Sep 30, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for transmitting handshaking signals between two peer devices using only two signal lines. The apparatus is symmetrical in that either peer device uses substantially the same signals and logic states to rouse the other. Only two handshaking signals are defined, but each handshaking signal has a dual meaning that is determined by various intermediate logic states in each peer device. Thus, the same signal that is generated by peer device A and sent to peer device B to tell peer device B that peer device A is awake and ready to receive a data transmission, is also generated by peer device A and transmitted to peer device B to request peer device B to wake up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.