Transaction support for IRDA-compatible systems
US6728774B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 15, 1997 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Nov 29, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system to adapt the MAC rules of the IrLAP specification to accomodate various IR transceiver devices with media sense utilizes an IrDA protocol stack having a series of layers including:IR ProtocolOSI ModelLayersTransaction Service3. Link Management ProtocolNetworkConnection-less LSAP;LMPConnection-less data.2. Link Access ProtocolData LinkConnection-less data;LAPFraming: Rx & Tx;MAC.1. ConnectivityPhysicalIrDA-SIR,where LSAP is the Link Service Access Point. This kind of protocol stack can be applied to a very large variety of devices, such as, remote controllers with feedback for tuners; can be used for data transactions by request, e.g., pager reporting of received numbers; and is applicable to data acquisition systems, such as, portable GPS reporting of changes of location and medical systems. Various ways for implementing the invention comprise: using the connection-less data service; using XID frames; or using proprietary or open object definitions; with the use of the connection-less data service that is already present in the IrDA specification along with the emerging OBEX object definitions being preferred. Implementation requires no changes in existing systems, and the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.