Method for increasing the endurance of an information receiver, particularly for radio paging, and corresponding receiver
First Claim
1. A method for increasing the endurance of a free-standing information receiver, particularly a portable radio-paging receiver, the said information being transmitted on a carrier signal within a plurality of successive time frames (T1, T2) each partitioned into a predetermined number of time intervals (I0 -I9) each of which is allotted to a predetermined group of receivers, a method in which the receivers of each group being furthermore distributed into a predetermined number of identifiable sub-groups of receivers (SG0 -SG9), all the receivers of the group (G3) are activated (30) at the start of the corresponding allotted time interval (I3) , all the receivers of the group are made to receive service information (IS) identifying which are the sub-groups in which the receivers are likely to receive a message, this service information is analysed (31) within each receiver and, before the end of the said time interval (I3), a receiver not belonging to one of the designated sub-groups is de-activated (33).
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Accused Products
Abstract
The information is transmitted on a carrier signal within a plurality of successive time frames each partitioned by a predetermined number of time intervals, each of which is allotted to a predetermined group of receivers. The receivers of each group are furthermore distributed into a predetermined number of identifiable sub-groups of receivers. All the receivers of the group are activated at the start of the corresponding allotted time interval, all the receivers of the group are made to receive service information identifying which are the sub-groups in which the receivers are likely to receive a message, this service information is analysed within each receiver and, before the end of the time interval (I3), a receiver not belonging to one of the designated sub-groups is de-activated.
29 Citations
18 Claims
- 1. A method for increasing the endurance of a free-standing information receiver, particularly a portable radio-paging receiver, the said information being transmitted on a carrier signal within a plurality of successive time frames (T1, T2) each partitioned into a predetermined number of time intervals (I0 -I9) each of which is allotted to a predetermined group of receivers, a method in which the receivers of each group being furthermore distributed into a predetermined number of identifiable sub-groups of receivers (SG0 -SG9), all the receivers of the group (G3) are activated (30) at the start of the corresponding allotted time interval (I3) , all the receivers of the group are made to receive service information (IS) identifying which are the sub-groups in which the receivers are likely to receive a message, this service information is analysed (31) within each receiver and, before the end of the said time interval (I3), a receiver not belonging to one of the designated sub-groups is de-activated (33).
- 10. A free-standing information receiver, particularly radio-paging receiver, the said-information being transmitted on a carrier signal within a plurality of successive time frames each partitioned into a predetermined number of intervals, each of which is allotted to a predetermined group of receivers, comprising control means (16) to activate the receivers(i) at the start of the corresponding allotted time interval (I3) of each frame in order to authorize processing of the information transported on the carrier signal, characterized in that it comprises a memory (15) containing data for identification (e) of the receiver making it possible to associate the receiver (1) with a predetermined sub-group (SG3) of receivers within the corresponding group, and analysis means (13), in the course of the allotted time interval, to receive service information (IS) designating one or more sub-groups and to carry out analysis processing of this service information having regard to the identification data (e), and in that the control means (16) de-activate the receiver (1) before the end of the time interval (I3) in the event of disagreement between the identification data and the service information.
Specification