Patents Assigned to CD Radio Incorporated
  • Radio frequency broadcasting systems and methods using two low-cost geosynchronous satellites
    Patent number: 5278863
    Abstract: High quality audio broadcasts at radio frequencies to mobile receivers at or near the earth's surface are provided by substantially simultaneous transmission of the same signal from two geosynchronous, spatially-separated satellites on the geosynchronous orbit which virtually eliminates multipath fading and foliage attenuation and thereby permits the use of a low-cost space segment.
    Type: Grant
    Filed: April 10, 1992
    Date of Patent: January 11, 1994
    Assignee: CD Radio Incorporated
    Inventor: Robert D. Briskman