Inventor
Donald R. Horne
Inventor
Don Mills, CA
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Nprimary
H04NPictorial communication, e.g. television45%
H04LTransmission of digital information, e.g. telegraphic communication27%
H04HBroadcast communication18%
H04BTransmission9%
PatentTitleYear
4,887,296'Cryptographic system for direct broadcast satellite system'19894,803,725'Cryptographic system using interchangeable key blocks and selectable key fragments'19894,739,510'Direct broadcast satellite signal transmission system'19884,694,491'Cryptographic system using interchangeable key blocks and selectable key fragments'19874,685,131'Program blocking method for use in direct broadcast satellite system'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1989Patents assigned to GEN INSTRUMENT CORP (5)· patent assignee history
1987–1989Based in Don Mills, CA· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN INSTRUMENT CORP | 5 | 1987–1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Don Mills, CA | 5 | 1987–1989 |