Issued Patents 2005
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6952182 | Position location using integrated services digital broadcasting—terrestrial (ISDB-T) broadcast television signals | James J. Spilker, Jr. | 2005-10-04 |
| 6917328 | Radio frequency device for receiving TV signals and GPS satellite signals and performing positioning | James J. Spilker, Jr. | 2005-07-12 |
| 6879286 | Position location using ghost canceling reference television signals | James J. Spilker, Jr. | 2005-04-12 |
| 6861984 | Position location using broadcast digital television signals | James J. Spilker, Jr. | 2005-03-01 |
| 6859173 | Position location using broadcast television signals and mobile telephone signals | James J. Spilker, Jr., Jimmy K. Omura | 2005-02-22 |
| 6839024 | Position determination using portable pseudo-television broadcast transmitters | James J. Spilker, Jr. | 2005-01-04 |