Mobile telephone system with intermittent control of receiver components in standby state
CA 2001775 C · Owner: Mitsubishi Denki Kabushiki Kaisha · Inventors: Toko, Yoshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mobile telephone system having a controlling portion which sends an intermittent signal to a power switch during a standby state so that power is turned on during a period when a necessary signal portion of a control signal derived from a signal receiving portion is input, the power switch being turned off during a period when an unnecessary signal portion of the control signal is input, and thereby, the components of the signal receiving portion having short rise times i.e. time intervals between turning on of the power source and start of operation, are supplied with intermittent power to reduce power consumption.
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 October 30, 1989 and granted March 8, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 30, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 2011.
- 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.