EP0193316A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Mobile telephone system for automatically paging absent mobile subscriber
Assignee: NEC Corp
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Filing: 1986-02-14
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Granted: —
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Expires: 2006-02-14
Abstract
Abstract A mobile telephone unit belongs to a mobile telephone system with a mobile telephone system (3) and a paging system (4) which cover an identical service area (8), are independently operated, and are connected through an exchange (2). The mobile telephone unit (5) includes a telephone set (5B) connected to a radio transmitter/receiver (5A) and an automatic pager calling circuit (10). The automatic pager calling circuit (19) includes a circuit (14,15,16,17) for detecting and storing that an incoming call is made for a mobile subscriber (6) who carries a pager (7) and is away from a vehicle, and a circuit (18,19) for sending a signal representing a preset pager number to the radio transmitter/ receiver (5A). The pager number signal from the radio transmitter/receiver (5A) is automatically sent by the paging system (4) to the pager (7) through the exchange (2), thereby calling the mobile subscriber.
Inventors
- 👤 Tomokazu Kai
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 18:14
CPC Classifications
H; H04; H04W; H04W68/00; H04W84/00; H04W84/02; H04W84/022; H04M; H04M11/00; H04M11/02; H04M11/022; H04W4/00; H04W4/16
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
212 words
A mobile telephone system for automatically calling an absent mobile subscriber, comprising an exchange (2) connected to a plurality of stationary subscriber telephone sets (1); a mobile telephone base station (3) connected to said exchange (2); a mobile telephone unit (5) installed in a vehicle and connected by a radio channel to said mobile telephone base station (3); a pager base station (4) connected to said exchange (2); and a pager (7) to be paged by said pager base station (4); characterized in that said mobile telephone unit (5) includes a radio transmitter/receiver (5A), a telephone set (5B) connected to said radio transmitter/receiver (5A), and automatic pager calling means (10), and said automatic pager calling means (10) includes call detecting means (14, 15, 16, 17), for detecting an incoming call from a calling subscriber while the mobile subscriber (6) is located away from the vehicle and storing the information indicating that the mobile subscriber (6) is away from the vehicle, and pager number supplying means (18, 19) for automatically supplying to said pager base station (4) through said radio transmitter/receiver (5A), said mobile telephone base station (3) and said exchange (2), with a signal representing a pager number in response to a signal from said call detecting means (14, 15, 16, 17).
Claim 2
Dependent Claim
212 words
A mobile telephone system for automatically calling an absent mobile subscriber, comprising an exchange (2) connected to a plurality of stationary subscriber telephone sets (1); a mobile telephone base station (3) connected to said exchange (2); a mobile telephone unit (5) installed in a vehicle and connected by a radio channel to said mobile telephone base station (3); a pager base station (4) connected to said exchange (2); and a pager (7) to be paged by said pager base station (4); characterized in that said mobile telephone unit (5) includes a radio transmitter/receiver (5A), a telephone set (5B) connected to said radio transmitter/receiver (5A), and automatic pager calling means (10), and said automatic pager calling means (10) includes call detecting means (14, 15, 16, 17), for detecting an incoming call from a calling subscriber while the mobile subscriber (6) is located away from the vehicle and storing the information indicating that the mobile subscriber (6) is away from the vehicle, and pager number supplying means (18, 19) for automatically supplying to said pager base station (4) through said radio transmitter/receiver (5A), said mobile telephone base station (3) and said exchange (2), with a signal representing a pager number in response to a signal from said call detecting means (14, 15, 16, 17).
Claim 3
Dependent Claim
87 words
A system according to claim 1, wherein said automatic pager calling means (10) further includes: hook circuit means (45) for setting said radio transmitter/receiver (5A) and said automatic pager calling means (10) in an off-hook state in response to an output from said call detecting means (22); means (40) for sending a preset outgoing message to the calling stationary subscriber; means (45) for detecting and storing an incoming message from the calling stationary subscriber; and means (41, 47) for sending the incoming message following the pager number.
Claim 4
Dependent Claim
17 words
A system according to claim 2, wherein said outgoing message sending means includes a voice synthesizer (40).
Claim 5
Dependent Claim
14 words
A system according to claim 2, wherein the incoming message is a pushbutton signal.
Claim 6
Dependent Claim
24 words
A system according to claim 1, wherein said pager is mounted in a battery pack which is detachable to a portable telephone set (9).
Claim 7
Dependent Claim
25 words
'6. A system according to claim 5, wherein said portable telephone set (9) includes a display (76) for displaying an output from said pager (7).
References Cited (Backward Citations)
US4172969A
Cited
EP0035590A1
Cited
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