Patent EP0266678A2 successfully refreshed from Google Patents.
EP0266678A2
Expired / Lapsed
EP
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Radio telephone apparatus
Assignee: Toshiba Corp
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Filing: 1987-10-29
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Granted: —
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Expires: 2007-10-29
Abstract
Abstract A radio telephone apparatus is assigned with an identification code beforehand and includes a parent unit (1) and a radio telephone set both storing this identification code. When the radio telephone set is put on the parent unit (1), a charging path through which a battery of the radio telephone set is charged by a charger (13) of the parent unit (1) and a data channel through which data is transmitted/received between control circuits of the parent unit (1) and the radio telephone set are formed. The control circuit (14) of the parent unit (1) transmits an identification code request signal to the radio telephone set in response to a charging start signal from the charger (13). The control circuit of the radio telephone set sends back the identification code stored therein. The parent unit (1) compares the received identification code with the identification code stored therein. If the two identification codes are not coincident with each other, the parent unit (1) controls an alarm unit (16) to generate an alarm.
Inventors
- 👤 Yukihiro C/O Nec Corporation Shimura
- 👤 Noboru C/O Nec Corporation Saegusa
- 👤 Tatsuo Furuno
- 👤 Kazuyuki Tate
- 👤 Syoji Huse
- 👤 Koji Ono
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 06:46
CPC Classifications
H; H04; H04M; H04M9/00; H04M1/00; H04M1/72; H04M1/725; H04M1/727
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
271 words
A radio telephone apparatus comprising: a parent unit connected to a subscriber line; and a radio telephone set, connected to said parent unit through a radio channel and hence connected to said subscriber line, and detachably put on said parent unit, said parent unit and said radio telephone set being assigned with the same identification number, wherein said parent unit comprises: first connecting means for forming, when said radio telephone set is put on said parent unit, a charging path through which a battery of said radio telephone set is charged; a charger for charging said battery through said first connecting means and generating a charging start signal when charging is started; first memory means for storing an identification number; alarming means for generating an alarm; and control means for transmitting an identification code request signal to said radio telephone set in response to the charging start signal, and when the identification code is not transmitted from said radio telephone set or the received identification code is not coincident with the identification code stored in said first memory means, controlling said alarming means to generate an alarm, and said radio telephone set comprises: second connecting means, electrically connected to said first connecting means, for forming said charging path; a battery serving as a power source of said radio telephone set and charged by said charger through said second connecting means; second memory means for storing the same identification code as that of said parent unit; and control means for transmitting the identification code stored in said second memory means to said parent unit in response to the identification code request signal.
Claim 2
Dependent Claim
271 words
A radio telephone apparatus comprising: a parent unit connected to a subscriber line; and a radio telephone set, connected to said parent unit through a radio channel and hence connected to said subscriber line, and detachably put on said parent unit, said parent unit and said radio telephone set being assigned with the same identification number, wherein said parent unit comprises: first connecting means for forming, when said radio telephone set is put on said parent unit, a charging path through which a battery of said radio telephone set is charged; a charger for charging said battery through said first connecting means and generating a charging start signal when charging is started; first memory means for storing an identification number; alarming means for generating an alarm; and control means for transmitting an identification code request signal to said radio telephone set in response to the charging start signal, and when the identification code is not transmitted from said radio telephone set or the received identification code is not coincident with the identification code stored in said first memory means, controlling said alarming means to generate an alarm, and said radio telephone set comprises: second connecting means, electrically connected to said first connecting means, for forming said charging path; a battery serving as a power source of said radio telephone set and charged by said charger through said second connecting means; second memory means for storing the same identification code as that of said parent unit; and control means for transmitting the identification code stored in said second memory means to said parent unit in response to the identification code request signal.
Claim 3
Dependent Claim
73 words
An apparatus according to claim 1, wherein, when said radio telephone set is put on said parent unit, said first and second connecting means form a data channel through which a data signal can be transmitted/received with respect to said radio telephone set and wherein each of said first and second connecting means has a pair of connection terminals for said charging path and a pair of connection terminals for said data channel.
Claim 4
Dependent Claim
108 words
An apparatus according to claim 2, wherein said charger has a power source connected to one of said pair of connection terminals for said charging path of said first connecting means, a series circuit connected between the other one of said pair of connection terminals and ground and consisting of a first resistor and a diode, and a transistor, connected between said power source and ground through a second resistor which is connected in series with said transistor, the base of which is connected to said other one of said pair of connection terminals, and the charging start signal is output from one end of said second resistor.
Claim 5
Independent Claim
47 words
An apparatus according to any of claims 1 to 3, wherein said alarming means has at least one of display means capable of displaying information concerning noncoincidence of the identification codes or information required to obtain coincidence and sound generating means for generating a predetermined alarm sound.
References Cited (Backward Citations)
No citation records indexed.
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