Califronia based Kasenna which claims to be a leading provider of on-demand video delivery solutions, has been awarded another technology patent. US Patent 6,498,897 was issued to the company for its invention of the Header Injection technique used in the delivery of real- time video streams. Kasenna, a technology powerhouse begun at Silicon Graphics in the 1990s, adds this to their patent portfolio.

The Header Injection technique developed by Kasenna enables operators of on-demand television networks to seamlessly deliver media in multiple formats or bit-rates, such as movies in MPEG-1 at 3 Mbps and advertisements in MPEG-2 at 4 Mbps. In addition, the technique enables smooth playback of live or multicast streams over networks traditionally subject to packet losses. Techniques embodied in the platform also allow users to join and view multicast streams without the long delays usually associated with header synchronisations.

In addition to this award, the company is currently in the late stages of being awarded another eight patents on technologies key to the delivery of digital media, affirming Kasenna's position as the technology leader in on-demand video delivery systems.