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: Engineer leads effort to develop computer systems that can see better than humans

add to favorites email to friend print save as pdf

Related Stories

Researchers discover new strategy germs use to invade cells

8 minutes ago

The hospital germ Pseudomonas aeruginosa wraps itself into the membrane of human cells: A team led by Dr. Thorsten Eierhoff and Junior Professor Dr. Winfried Römer from the Institute of Biology II, members of the Cluster ...

Vibrational motion of a single molecule measured in real time

18 minutes ago

For the first time, chemists have succeeded in measuring vibrational motion of a single molecule with a femtosecond time resolution. The study reveals how vibration of a single molecule differs from the behaviour of larger ...

For top broadband policy, look no further than Canada

18 minutes ago

You might have seen communications minister Malcolm Turnbull raising the issue about Australian press not discussing policy problems and solutions from overseas, in a speech delivered at the Lowy Institute Media Awards last week: ...

Progress in the fight against harmful fungi

28 minutes ago

A group of researchers at the Max F. Perutz Laboratories has created one of the three world's largest gene libraries for the Candida glabrata yeast, which is harmful to humans. Molecular analysis of the Candida ...

Electronic 'noses' to detect chemical warfare gases

38 minutes ago

Researchers of the Universitat Politècnica de València have developed a prototype of electronic "nose" for the detection of chemical warfare gases, fundamentally nerve gases (Sarin, Soman and Tabun). 

Recommended for you

Security event to learn about side-channel attacks on PCs

54 minutes ago

A paper to be presented at next month's Workshop on Cryptographic Hardware and Embedded Systems (CHES) in Busan, South Korea, will discuss physical side-channel attacks on laptop computers, in findings from ...

Hitchhiking robot reaches journey's end in Canada

1 hour ago

A chatty robot with an LED-lit smiley face sent hitchhiking across Canada this summer as part of a social experiment reached its final destination Thursday after several thousand kilometers on the road.

Microsoft to unveil new Windows software

1 hour ago

A news report out Thursday indicated that Microsoft is poised to give the world a glimpse at a new-generation computer operating system that will succeed Windows 8.

Music site SoundCloud to start paying artists

3 hours ago

SoundCloud said Thursday that it will start paying artists and record companies whose music is played on the popular streaming site, a move that will bring it in line with competitors such as YouTube and Spotify.

The ethics of driverless cars

3 hours ago

Jason Millar, a PhD Candidate in the Department of Philosophy, spends a lot of time thinking about driverless cars. Though you aren't likely to be able to buy them for 10 years, he says there are a number ...

User comments : 0