Serving videos for gaming; Gaikai Inc.; U.S. Pat. No. 8,147,339
May 22, 2012 Leave a comment
U.S. Patent No. 8,147,339, issued on April 3, 2012 to Gaikai Inc. of Aliso Viejo, CA, discloses a system and method for serving videos for gaming.
According to the ’339 patent, prior game systems used a remote server to present multiplayer games over a network (e.g., the internet). The remote server would receive input from each player’s computer and would send game state information and limited image information back to these computers. Each player’s computer was configured to use this information from the server to render images and present them to the player. For example, the player’s computer would render an image (e.g., a view based on the point of view of the player’s avatar), taking into account the three-dimensional relationships between various components of the image (e.g., other avatars, game objects, non-player characters, and the game environment). In such systems, the memory and computing power of the rendering logic of the player’s computer would determine the quality and imaging speed of the displayed video. In contrast, the ’339 patent discloses a system in which the remote server does some or all of the image rendering, and these rendered images are delivered to the players via the network, so that the player’s computer may no longer need rendering logic. As a result, images can be generated on display systems with limited computational power (e.g., smartphones).
According to its website, Gaikai is “a cloud-based gaming platform that allows users to play high-end video games and applications instantly from a webpage or internet-connected device.” The company is working to be able to deliver video games so that they “can be accessed as easily as movies and music,” and believes that gaming “will become the #1 form of entertainment in the world.”
Under current U.S. patent law, the content of a patent application is published (i.e., made available to the public) by the USPTO 18 months after the earliest priority date of the application (typically, the filing date of the application). However, until the American Inventors Protection Act (AIPA) of 1999, under U.S. law, the content, and indeed the existence, of a patent application was kept secret by the USPTO until the application finally issued as a U.S. patent. The rationale for this change was to expand the library of prior art available to examiners and to bring the U.S. procedures closer to those of other countries which did not keep pending patent applications secret.
It was also intended to help relieve the problem of so-called “submarine patents” in which a patent application was filed and kept pending for years while the applicant delayed issuance and made changes to the claims to track the recent developments of the technology, all the while keeping the content and existence of the application secret. At some point, when another company brought an infringing product to market, the applicant would have the application issued by the USPTO and would then assert the patent by the patent owner against the unsuspecting company. Since the term of a U.S. patent was measured from its date of issuance (specifically, 17 years from the date of issuance), the applicant did not incur any downside to doing so.
But in 1995, the U.S. changed the term of a patent from 17 years from the date of issuance to 20 years from the earliest priority date. Therefore, an applicant wishing to obtain a “submarine patent” would only be able to do so for a maximum of 20 years, and the amount of time that the U.S. patent could be asserted would be the remaining portion of the 20-year period. This change of the law helped curtail the “submarine patent” practice significantly, and the practice was further curtailed by the publication of pending U.S. patent applications.
However, current U.S. law still allows an applicant to keep its application secret and unpublished if it so wishes. If the applicant is willing to forego foreign patent rights for the invention, the applicant can file a “Request for Non-Publication” along with the application when filed at the USPTO. Upon granting the Request, the USPTO will keep the content of the application secret until it eventually issues as a U.S. patent.
Gaikai utilized this procedure for the patent application that resulted in the ’339 patent, by filing a “Request for Non-Publication” to keep its content secret until the ’339 patent issued last month. Had Gaikai not filed the non-publication request, the application’s content would have been published in June 2009. However, by filing the non-publication request, the contents of the ’339 patent were not published for almost another 4 years, until the patent issued in April 2012. Presumably, Gaikai saw a strategic advantage in keeping the content of the ’339 patent secret for these 4 years.
According to the USPTO database, the ’339 patent is Gaikai’s first U.S. patent, but the company has numerous patent applications still pending, including five continuation-n-part applications claiming priority to the ’339 patent.







































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