EchoStar communications has filed a patent infringement lawsuit against digital video recorder company TiVo and electronics maker Humax. The suit, filed on April 29 in U.S. district court in Texas, alleges that TiVo and Humax infringe on four EchoStar patents related to DVR technology.
TiVoagainst EchoStar in January of last year alleging infringement of its " " patent. That has been a slow-moving case, . The lawsuit in TiVo's efforts to enforce its patent portfolio.
Humax licenses TiVo's technology and manufactures and sells consumer electronics devices that.