Mobile and wireless information dissemination architecture and protocols
CA 2212567 C · Owner: Hughes Electronics Corporation · Inventors: Dao, Son K.; Zhang, Yongguang; Shek, Eddie C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A, device for implementing a multimedia communication dissemination system (20) is disclosed herein. The communication system (20) integrates heterogeneous satellite transmission systems local area computer networks , (32), and the public telephone system to implement a flexible high-speed , communication system. The preferred communication dissemination system (20) includes a broadcast server (22) for broadcasting an information signal (40) a mobile base station (26) for receiving the information signal broadcast (40) from the broadcast server (26), and a local area network (32) for distributing information received by the mobile base station (26). The preferred mobile base station …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed January 17, 1997 and granted May 15, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 17, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.