Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5117313 | Digital transmission system, transmitter and receiver to be utilized in the transmission system and record carrier obtained by means of the transmitter in the form of a recording means | Gustavus L. P. Van Eijck, Petrus H. M. Arts | 1992-05-26 |
| 5083224 | Apparatus for recording an audio signal with protection against re-recording thereof, and recording apparatus which indicates the presence of such protection | Abraham Hoogendoorn | 1992-01-21 |
| 5060219 | Recording system for recording only those types of information which are specified by the record carrier | Rudolf Roth, Wilhelmus P. M. Raaymakers | 1991-10-22 |