Patent EP0408086A2 successfully refreshed from Google Patents.
EP0408086A2
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EP
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Watch pager system
Assignee: Seiko Epson Corp
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Filing: 1985-12-03
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Granted: —
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Expires: 2005-12-03
Abstract
Abstract A paging system comprises first and second transmitters (44) for broadcasting paging messages over first and second areas, a first pager normally residing in said first area and a second pager normally residing in said second area, first and second paging request means (34) for inputting paging messages to the first and second transmitters, first and second subscriber storage means (36) associated with said first and second transmitter means for storing a current location for each of the first and second pagers (20, and communications means (38) for communicating messages between the first and second transmitters (44). The first and second areas are spaced apart so that the first pager (20) does not receive paging signals broadcast from the first transmitter means (44) while in the second area The first and second paging request means (34) each include means (30, 202) for inputting the identifying address for a selected one of the pagers and routing means (206, 210, 212) for the pagers and routing means (206, 210, 212) for routing paging messages to one of the transmitters (44) via the communications means (38) in accordance with the stored current location of the selected pager (20) so that a paging message, input via either of the first and second page requesting means (34) for the first pager (20) temporarily located in the second area, can be broadcast solely by the second transmitter (44).
Inventors
- 👤 Garold B. Gaskill
- 👤 Daniel J. Park
- 👤 Robert G. Rullman
- 👤 Donald T. Rose
- 👤 Joseph F. Stiley Iii
- 👤 Lewis W. Barnum
- 👤 Don G. Hoff
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 12:53
CPC Classifications
H; H04; H04W; H04W68/00; G; G04; G04G; G04G21/00; G04G21/04; G04R; G04R20/00; G04R20/14; G04R20/20; G04R60/00; G04R60/04; G08; G08B; G08B3/00; G08B3/10; G08B3/1008; G08B3/1016; G08B5/00; G08B5/22; G08B5/222; G08B5/223; G08B5/224; G08B5/228; H01; H01Q; H01Q1/00; H01Q1/27; H01Q1/273; H04W52/00; H04W52/02; H04W52/0209; H04W52/0212; H04W52/0216; H04W84/00; H04W84/02; H04W84/022; H04W88/00; H04W88/02; H04W88/022; H04W88/025; H04W88/026; H04W88/18; H04W88/185; H04W88/187; H04L; H04L1/00; H04L1/12; H04L1/16; H04L1/18; H04L1/1867; H04L1/1874; H04L1/1877; H04W28/00; H04W28/02; H04W28/06; H04W40/00; H04W40/02; H04W52/0225; H04W52/0245; H04W52/0261; H04W52/0274; H04W52/028; H04W72/00; H04W72/04; H04W72/044; H04W72/0446; H04W74/00; H04W74/04; H04W8/00; H04W8/18; H04W8/26; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
257 words
A paging system characterised by: first and second transmitting means (44) for broadcasting paging messages over first and second areas, respectively; a plurality of page receiving means (20) for receiving paging messages from the transmitting means, including first page receiving means normally residing in said first area and second page receiving means normally residing in said second area; first and second paging request means (34) for inputting paging messages to the first and second transmitting means, respectively; first and second subscriber storage means (36) associated with said first and second transmitting means (44) respectively for storing a current location for each of the first and second receiving means (20), respectively; and communications means (38) for communicating messages between the first and second transmitting means (44), the first and second areas being spaced apart so that said first receiving means (20) does not receive paging signals broadcast from the first transmitting means (44) while in the second area; the first and second paging request means (34) each including means (30, 202) for inputting the identifying address for a selected one of the receiving means and routing means (206, 210, 212) for routing paging messages to one of said transmitting means (44) via the communications means (38) in accordance with the stored current location of the selected receiving means (20) so that a paging message, input via either of the first and second page requesting means (34) for the first receiving means (20) temporarily located in the second area, can be broadcast solely by the second transmitting means (44).
Claim 2
Dependent Claim
257 words
A paging system characterised by: first and second transmitting means (44) for broadcasting paging messages over first and second areas, respectively; a plurality of page receiving means (20) for receiving paging messages from the transmitting means, including first page receiving means normally residing in said first area and second page receiving means normally residing in said second area; first and second paging request means (34) for inputting paging messages to the first and second transmitting means, respectively; first and second subscriber storage means (36) associated with said first and second transmitting means (44) respectively for storing a current location for each of the first and second receiving means (20), respectively; and communications means (38) for communicating messages between the first and second transmitting means (44), the first and second areas being spaced apart so that said first receiving means (20) does not receive paging signals broadcast from the first transmitting means (44) while in the second area; the first and second paging request means (34) each including means (30, 202) for inputting the identifying address for a selected one of the receiving means and routing means (206, 210, 212) for routing paging messages to one of said transmitting means (44) via the communications means (38) in accordance with the stored current location of the selected receiving means (20) so that a paging message, input via either of the first and second page requesting means (34) for the first receiving means (20) temporarily located in the second area, can be broadcast solely by the second transmitting means (44).
Claim 3
Dependent Claim
59 words
A system according to claim 1, in which the stored identifying address of each receiving means includes a area code unique to the area in which the associated receiving means (20) normally resides and the stored current location is either the aforementioned area code or a second area code defining a temporary location of the subject receiving means (20).
Claim 4
Dependent Claim
63 words
A system according to claim 2, in which the routing means of the first paging request means is responsive to a paging request including the identifying address for one paging receiver (20) to look up the current location thereof and to route the paging request to one of the transmitting means (44) in accordance with the area code stored in the current location.
Claim 5
Dependent Claim
115 words
A system according to claim 2, in which: the routing means (210, 212) of the second local paging request means is responsive to a paging request including the identifying address for said one paging receiver (20) to transmit via the communications means (38) a request to the first subscriber storage means for the current location of said one paging receiver; the first subscriber storage means includes means responsive to said request for transmitting via the communications means the requested current location to the second routing means; and the second routing means is responsive upon receiving the current location to route the message to the transmitting means (44) for the area code identifying said current location.
Claim 6
Independent Claim
69 words
A system according to any preceding claim in which: the first and second transmitting means (44) broadcast over first and second channels, respectively; and each of the first and second page receiving means (20) includes means (854) for detecting a plurality of broadcast channels, including said first and second channels, and means (858) for scanning said plurality of channels to find one of the channels broadcasting said paging messages.
Claim 7
Dependent Claim
77 words
A system according to claim 5, in which each of the page receiving means (20) includes; timing means (720) for turning the receiving means on and off at predetermined intervals to receive messages; means (758) for storing at least one channel for which broadcast paging messages have been received; and means (706) responsive to the timing means for testing the stored channel upon turn on and, in the absence of messages thereon, actuating the scanning means (858).
Claim 8
Independent Claim
108 words
A system according to any preceding claim in which: each of the first and second receiving means includes a timing means (720) for turning the receiving means (20) on at first time intervals; the first and second transmitting means (44) each include transmission queuing means (20) for timing transmission of paging signals intended for a selected receiving means (20) at second predetermined time intervals; and the receiving means (20) each include means responsive to a first paging message for setting the first time interval to coincide with the second time interval so that the selected receiving means (20) turns on in time to receive a second paging message.
Claim 9
Dependent Claim
111 words
A system according to claim 7 in which: each of the receiving means (20) has an assigned time slot having a duration defined by a paging message of a predetermined minimum length and occurring at a predetermined minimum periodic frequency defining said first time intervals; the transmission queuing means (40) include means (220) for segmenting paging messages intended for a selected receiving means into first and second message packets of said minimum length; and the transmission queuing means (40) include means (220) for transmitting, in the first message packet, data temporarily redefining the second time interval to transmit and receive the second message packet prior to the next first time interval.
Claim 10
Dependent Claim
27 words
A system according to claim 8 in which a plurality of said packets are linked together for transmission at a rate greater than said minimum periodic frequency.
Claim 11
Dependent Claim
89 words
A system according to claim 1 in which: each page receiving means (20) has an assigned time slot (604) of a duration determined by a paging message of a predetermined minimum length and a predetermined minimum periodic frequency of occurrence of the assigned time slots; and each paging means (20) includes timing means (720) for turning the receiving means on and off in synchrony with said assigned time slots (604), the time slot duration and periodic frequency providing a ratio of on-time to off-time of less than abut 0.2%.
Claim 12
Dependent Claim
16 words
A system according to claim 10 in which the time slot duration is about 13 milliseconds.
References Cited (Backward Citations)
No citation records indexed.
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