Kane Kramer

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Kane Kramer
Born (1956-04-23) April 23, 1956 (age 62)
United Kingdom
Residence London, England
Citizenship British
Known for Inventor
Website www.kanekramer.com

Kane Kramer is a British inventor and businessman. He is credited with the initial invention of the digital audio player, in 1979.[1]

Invention of the DAP[edit]

In 1981 Kramer filed for a UK patent for his newly conceived Digital Audio Player, the IXI. UK patent 2115996 was issued in 1985, and U.S. Patent 4,667,088 was issued in 1987. The player was the size of a credit card with a small LCD screen and navigation and volume buttons and would have held data of at least 8 MB of solid state bubble memory chip with a capacity of 3.5 minutes worth of audio. Plans were made for a 10-minute stereo memory card and the system was at one time fitted with a hard drive enabling over an hour of recorded digital music. His first investor was Sir Paul McCartney, later Kramer set up a company to promote IXI and five working prototypes were produced with 16 bit sampling at 44.1 kilohertz with the pre-production prototype being unveiled at the APRS Audio/Visual trade exhibition in October 1986. In a 2004 interview with The Guardian, Kramer stated that the company at the time had "orders worth £60,000,000" (value at current day) for the device from the recording industry.[2] However, in 1988 a boardroom dispute within Kramer's company and the subsequent failure to raise the £60,000 required to renew the patent resulted in the patent lapsing and entering the public domain, however he is still the owner of the designs.[1]

iPod testimony[edit]

In 2008, Kramer was called as a witness by Apple Inc. to defend itself from charges of patent infringement for its iPod digital audio player.[3][4] According to the 'Mail Online' edition of 8 September 2008, Apple Inc. had used Mr Kramer’s patents and drawings to defend itself in the legal wrangle with Burst a year earlier and he gave evidence under fire from Burst’s lawyers.[1]

Current work[edit]

Kramer is still at work in the technology sector. Kramer is the Chairman of the British Inventors Society and Organiser of the British Invention Show & World Invention Awards. He acts as technology advisor to International Clean Energy Circle (ICI) and a number of companies. His current project is Directing and an Executive Producer of a 90 minute documentary film called 'Disparity', an aid face off, the film is due for release late 2018.


  1. ^ a b c Boffey, Daniel Apple admit Briton DID invent iPod, but he's still not getting any money Daily Mail, 2008-09-08. Retrieved on 2008-09-08.
  2. ^ Rix, Juliet (29 September 2004). "Talk time: Kane Kramer". The Guardian. Retrieved 21 October 2012. 
  3. ^ Arno Frank, einestages: Tech-Pionier Kane Kramer: Der wahre iGod, (Der Spiegel online, 19 October 2012) (in German)
  4. ^ Apple Computer Inc. v. Burst.com, Inc., (California, Northern District Court, January 4, 2007). See pages 9-12.

External links[edit]