CD Radio Inc.
9Patents
0Active
9Granted
30Portfolio score
Filing activity: Apr 10, 1992 → Mar 10, 1998
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5592471A | Mobile radio receivers using time diversity to avoid service outages in multichannel broadcast transmission systems | Electricity | 204 | Expired |
| US5864579A | Digital radio satellite and terrestrial ubiquitous broadcasting system using spread spectrum modulation | Electricity | 98 | Expired |
| US5319673A | Radio frequency broadcasting systems and methods using two low-cost geosynchronous satellites | Electricity | 81 | Expired |
| US5485485A | Radio frequency broadcasting systems and methods using two low-cost geosynchronous satellites and hemispherical coverage antennas | Electricity | 80 | Expired |
| US5278863A | Radio frequency broadcasting systems and methods using two low-cost geosynchronous satellites | Electricity | 62 | Expired |
| US5745839A | Satellite multiple access system with distortion cancellation and compression compensation | Electricity | 46 | Expired |
| US5794138A | Satellite broadcast system receiver | Electricity | 45 | Expired |
| US5720039A | Satellite multiple access system with distortion cancellation and compression compensation | Electricity | 29 | Expired |
| US6023616A | Satellite broadcast receiver system | Electricity | 29 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.