It's a relatively short and simple patent. Music, advertisements, news programs, etc. are stored locally on a receiver. At some point, control codes are sent to the receiver to play back the locally stored content in the alloted time slot. It is more efficient, for example, to store a popular song and play it back on command than to re-broadcast it each time.
|United States Patent||7,180,917|
|Marko , et al.||February 20, 2007|
Method and apparatus for employing stored content at receivers to improve efficiency of broadcast system bandwidth use
The invention relates generally to a receiver unit in a digital broadcast system for receiving a broadcast signal comprising content segments and control data, and generating an output signal using the content segments and previously stored content segments. The previously stored content segments are retrieved from a local memory device using the control data and inserted among the received content segments.
|Inventors:||Marko; Paul D. (Pembroke Pines, FL), Wadin; Craig P. (Sunrise, FL)|
|Assignee:|| XM Satellite Radio Inc. (Washington, DC) |
|Filed:||October 25, 2000|
|Current U.S. Class:||370/535 ; 370/319; 725/89|
|Current International Class:||H04J 3/04 (20060101)|
|Field of Search:||370/315,316,326,390,432,535,537 725/38,39,40,42,44,46,47,48,49,50,87,88,89|
xm sirius satellite radio stocks patent patents trademark copyright experimental licenses wcs eas invest investing fcc
Jump to :: Satellite Radio Techworld Home Page ::