Radio paging receiver
CA 2113467 C · Owner: Kuramatsu, Hiroyasu · Inventors: Kuramatsu, Hiroyasu; Matai, Masahiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Operation time of a receiving section is reduced by reducing a power supply to the receiving section upon reception of the signal of a self-transmission rate when another transmission rate signal and a noise signal are received and power, consumption is reduced. A timer section counts the time since a control section starts the power supply to the receiving section, and a transmission rate detector section is operated when a predetermined time has elapsed. Power supply to the receiving section is interrupted when the transmission rate detector judges that the transmission rate of the received signal is not a self-transmission rate. This reduces a power supply time of a battery.
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 11, 1994 and granted March 21, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 11, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 2016.
- 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.