IrSimple, a High-Speed Infrared Communications Protocol Adopted as a Global Standard

Aug 28, 2005

ITX E-Globaledge Corporation, NTT DoCoMo, Inc., Sharp Corporation and Waseda University have jointly developed IrSimple(*1), a high-speed wireless communications protocol using infrared. IrDA(*2) (Infrared Data Association), an industry organization that develops and standardizes specifications for infrared communications, has decided to formally adopt the protocol as its standard.

IrSimple achieves faster data transmission speeds (at least 4 to 10 times faster than at present) by improving the efficiency of the current infrared IrDA protocol embedded in many mobile devices such as mobile phones. In addition, the IrSimple protocol also maintains backward compatibility with the existing IrDA protocols.

Incorporating IrSimple in digital consumer electronics devices and home appliances is expected to lead to a significant expansion in applications for this new communications protocol. For example, high-resolution photographs taken with a mobile phone or digital camera can be instantly transferred to a flat-panel TV or printer through a simple operation, similar to that of using a remote control unit.

Main Features of IrSimple

• Faster data transmission speeds (at least 4 to 10 times faster than existing protocols)
• Improved efficiency of the protocol by reducing latency until a receiver/transmitter pair is ready to communicate
• Implementing IrSimple can be done by adding and/or upgrading software for existing IrDA protocols
• Backward compatiblity with existing IrDA-enabled communications incorporated into devices or equipment

Comparison with Existing System (IrDA Protocols)
[Comparison of transfer times when transferring a 2-megapixel image (approximately 500K bytes)]

IrSimple–4M protocol(*3) -- Approx. 1 second
IrDA–4M protocol(*3) -- Approx. 4 to 11 seconds
IrDA–115K protocol(*4) -- Approx. 50 to 100 seconds

Notes:

*1 IrSimple refers to simple communications using a high-speed infrared-based wireless communications protocol.
*2 The Infrared Data Association (referred to as the IrDA) is a nonprofit industry-wide organization whose goal is to develop and promote globally adopted specifications for infrared wireless communication. Headquarters in California, US.
*3 Uses the FIR (Fast IrDA) specification for the speed of the physical layer (up to 4 Mbps).
*4 Uses the SIR (Serial Infrared) specification for the speed of the physical layer (up to 115.2 kbps). Currently incorporated in many mobile phones.

Explore further: Turkey still hopes Twitter will open local office

add to favorites email to friend print save as pdf

Related Stories

QFO Labs wants to send palm-sized copters out to play

Nov 07, 2012

(Phys.org)—A Minnesota-based trio running a company called QFO Labs, with the focus on "high tech gaming concepts," will be the first to assure that their game idea can in no way be confused with the mall ...

EEG helmet is being developed as interrogation device

Jul 12, 2012

(Phys.org) -- Veritas Scientific is working on an EEG helmet that carries a slideshow of images that could, they hope, reliably identify an enemy. The device is shaped like a motorcycle-helmet with metal brush ...

The James Webb Telescope will see Earth-like worlds

Oct 25, 2011

The James Web Space Telescope has been in the news a lot lately.  Often referred to as the replacement for the Hubble Space Telescope, its existence has been in jeopardy since a House committee voted ...

Simple security for wireless: no password required

Aug 22, 2011

In early August, at the Def Con conference — a major annual gathering of computer hackers — someone apparently hacked into many of the attendees’ cell phones, in what may have been the first successful breach ...

Recommended for you

Hand out money with my mobile? I think I'm ready

2 hours ago

A service is soon to launch in the UK that will enable us to transfer money to other people using just their name and mobile number. Paym is being hailed as a revolution in banking because you can pay peopl ...

User comments : 0

More news stories

Turning off depression in the brain

Scientists have traced vulnerability to depression-like behaviors in mice to out-of-balance electrical activity inside neurons of the brain's reward circuit and experimentally reversed it – but there's ...

There's something ancient in the icebox

Glaciers are commonly thought to work like a belt sander. As they move over the land they scrape off everything—vegetation, soil, and even the top layer of bedrock. So scientists were greatly surprised ...