Data exchange unit
US6654380B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2000 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Feb 3, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Reception buffer, transmission buffer, transmission-reception buffer, reception filter and transmission filter are provided. The reception filter determines where a received packet should be stored based on the contents of the received packet. Specifically, in executing a READ command, a response packet, which is returned in response to a data transmission packet, is detected by the reception filter. Received packets of the other types are stored on the reception buffer. In executing a WRITE command, a data request packet is transmitted from the transmission buffer. A data reception packet responding to the data request packet is stored by the reception filter on the transmission-reception buffer. Received packets of the other types are stored on the reception buffer. The capacity of the transmission-reception buffer is twice as large as the size of a maximum transferable packet. Thus, overhead can be reduced and yet data can be transferred at higher speeds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.