Patent EP0378450A2 successfully refreshed from Google Patents.
EP0378450A2
Expired / Lapsed
EP
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Radio telephone system
Assignee: Nokia Mobile Phones UK Ltd
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Filing: 1990-01-17
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Granted: —
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Expires: 2010-01-17
Abstract
Abstract A cellular radio telephone system comprises a mobile cellular telephone (1) adapted to have a hand portable telephone (2) containing a number assignment module, i.e. a NAM (7), removably connected thereto. The mobile telephone (1) has a microprocessor (4) which can access the information stored in the NAM (7) of the hand portable telephone (2) either directly or via a memory 16 whereby the mobile automatically assumes the telephone number of the hand portable telephone when the two telephones are connected together. Hence a subscriber need only have a single billing account for both telephones. Also, the same mobile telephone may be used as a host at different times by any number of subscribers having their own hand portable telephones. Each subscriber will be able to receive his own calls and the charges for using the system can be levied to the appropriate subscriber's account.
Inventors
- 👤 Alan Charles Grimmett
- 👤 Nils Erik Martensson
- 👤 Simon Philip O'neill
- 👤 Roger Wilkins
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 08:48
CPC Classifications
H; H04; H04W; H04W8/00; H04W8/18; H04W8/183; H04W88/00; H04W88/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
117 words
A radio telephone system comprising host radio telephone means (1) and handset means (5′), characterized in that the host telephone means (1) is adapted to have the handset means (5′) removably connected electrically thereto, the handset means (5′) contains a number assignment module (NAM) (19) in which is stored a number identifying the handset means, the handset means (5′) is adapted to provide read access to said NAM (19) from outside the handset means, and the host telephone means is provided with means for accessing said NAM (19) in the handset means whereby the host telephone means assumes automatically the identifying number of the handset means when the handset means is connected to the host telephone means.
Claim 2
Dependent Claim
117 words
A radio telephone system comprising host radio telephone means (1) and handset means (5′), characterized in that the host telephone means (1) is adapted to have the handset means (5′) removably connected electrically thereto, the handset means (5′) contains a number assignment module (NAM) (19) in which is stored a number identifying the handset means, the handset means (5′) is adapted to provide read access to said NAM (19) from outside the handset means, and the host telephone means is provided with means for accessing said NAM (19) in the handset means whereby the host telephone means assumes automatically the identifying number of the handset means when the handset means is connected to the host telephone means.
Claim 3
Dependent Claim
129 words
A radio telephone system comprising a host radio telephone (1) having a first number assignment module (NAM) (14) in which is stored a telephone number identifying the host telephone, and telephone handset means (2,5′) containing a second NAM (7,19) in which is stored a telephone number identifying the handset means, characterized in that the host telephone (1) is adapted to have the handset means (2,5′) removably connected thereto, the telephone handset means is adapted to provide read access to the second NAM (7,19) from outside the handset means, and the host telephone (1) is provided with means (3,24) for accessing the second NAM (7, 19) whereby the host telephone assumes automatically the identifying telephone number of the handset means when the handset means is connected to the host telephone.
Claim 4
Dependent Claim
129 words
A radio telephone system comprising a host radio telephone (1) having a first number assignment module (NAM) (14) in which is stored a telephone number identifying the host telephone, and telephone handset means (2,5′) containing a second NAM (7,19) in which is stored a telephone number identifying the handset means, characterized in that the host telephone (1) is adapted to have the handset means (2,5′) removably connected thereto, the telephone handset means is adapted to provide read access to the second NAM (7,19) from outside the handset means, and the host telephone (1) is provided with means (3,24) for accessing the second NAM (7, 19) whereby the host telephone assumes automatically the identifying telephone number of the handset means when the handset means is connected to the host telephone.
Claim 5
Dependent Claim
21 words
A radio telephone system as claimed in claim 2, wherein the telephone handset means is a hand portable radio telephone (2).
Claim 6
Dependent Claim
67 words
A radio telephone system as claimed in claim 3, including means (12) capable of detecting the connection of the hand portable telephone to the host telephone, the hand portable telephone comprising switching means (12) responsive to the detecting means which disable at least some of the R.F. circuits (13) of the hand portable telephone (2) when the hand portable telephone is connected to the host telephone (1).
Claim 7
Dependent Claim
75 words
A radio telephone system as claimed in any of claims 2 to 4, including means (15) capable of detecting the connection of the handset means to the host telephone, wherein the host telephone comprises control circuitry (4) to which the first NAM (14) is coupled, and switching means (15) responsive to the detecting means which disconnect the first NAM from the control circuitry when the handset means (2) is connected to the host telephone (1).
Claim 8
Dependent Claim
57 words
A radio telephone system as claimed in any of claims 2 to 5, wherein the host telephone (1) comprises re-programmable memory means (16) for storing information from the second NAM (7), and means are provided for transferring information from the second NAM to the memory means automatically when the handset means is connected to the host telephone.
Claim 9
Dependent Claim
43 words
A radio telephone system as claimed in claim 5 and claim 6, wherein the switching means (15) of the host telephone (1) couples the memory means (16) to the control circuitry (4) when the handset means (2) is connected to the host telephone.
Claim 10
Dependent Claim
37 words
A radio telephone system as claimed in claim 6 or claim 7, wherein means are provided for erasing the information stored in the memory means (16) automatically when the handset means is disconnected from the host telephone.
Claim 11
Dependent Claim
70 words
A radio telephone system as claimed in any of claims 2 to 8, wherein the handset means (2) comprises memory means (20) for storing variable information, and the host telephone comprises corresponding memory means (21), and means are provided for transferring information from the memory means in the handset means to the corresponding memory means in the host telephone automatically when the handset means is connected to the host telephone.
Claim 12
Dependent Claim
83 words
A host radio telephone (1) for use in the radio telephone system claimed in any of the preceding claims, the host telephone being adapted to have removably connected thereto a telephone handset means (2,5′) containing a number assignment module (NAM) (7,19) storing a telephone number identifying the handset means, the host telephone having means (3,24) for accessing the NAM whereby the host telephone automatically assumes the identifying telephone number of the handset means when the handset means is connected to the host telephone.
Claim 13
Dependent Claim
69 words
A telephone handset (2,5′) for use as the handset means in the radio telephone system claimed in any of claims 1 to 9, adapted to be removably connected to the host telephone (1) and containing a number assignment module (NAM) (7,19) for storing a telephone number identifying the handset, the handset means being adapted to provide read access to the NAM (7,19) contained therein from outside the handset means.
References Cited (Backward Citations)
No citation records indexed.
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