EP0188322A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A total communication system and communication apparatus for use in such a system
Assignee: Shaye Communications Ltd
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Filing: 1986-01-07
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Granted: —
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Expires: 2006-01-07
Abstract
Abstract Apparatus is provided for use in a two-way cordless telephone communications system for speech and/or data comprising at least one personal communication terminal (PCT) (1) for cordless communication with any one of a plurality of base units (3,3',5,7,13,14). The cordless link between the PCT and the base unit may be any suitable link but is preferably radio. The base units further provide communication to one or more telephone networks (9,10), either by means of radio, in the case of a radio telephone network (9), or land line or both and at least one of the base units (3',5,7) is arranged for use in a radio telephone network, preferably a cellular radio network. Any base unit arranged for use in a radio telephone network uses a transmitter, for communication with the radio telephone network, having a higher output power than the transmitter utilized by a PCT.
Inventors
- 👤 Sir Clive Marles Sinclair
- 👤 Graham Edgar Beesley
- 👤 John Mark Baker
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 15:48
CPC Classifications
H; H04; H04W; H04W84/00; H04W84/02; H04W84/10; H04W84/16; H04W84/14
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
103 words
Apparatus for use in a two-way cordless telephone communications system for speech and/or data, comprising at least one personal communication terminal (PCT) (1) for cordless communication with any one of a plurality of base units (3,3',5,7,13,14), said base units further providing communication to one or more telephone networks (9,10) either by means of radio (radio telephone network (9)) or land line or both, wherein at least one of the base units (3',5,7) is for use in a radio telephone network and wherein any such base unit uses a transmitter of a higher output power than the transmitter utilized by any said PCT (1).
Claim 2
Dependent Claim
103 words
Apparatus for use in a two-way cordless telephone communications system for speech and/or data, comprising at least one personal communication terminal (PCT) (1) for cordless communication with any one of a plurality of base units (3,3',5,7,13,14), said base units further providing communication to one or more telephone networks (9,10) either by means of radio (radio telephone network (9)) or land line or both, wherein at least one of the base units (3',5,7) is for use in a radio telephone network and wherein any such base unit uses a transmitter of a higher output power than the transmitter utilized by any said PCT (1).
Claim 3
Dependent Claim
43 words
Apparatus as claimed in claim 1 wherein the PCT is arranged to select communication with one of the said plurality of base units, by means of a user-set or pre-set selection sequence, dependent on the availability of the said base units for communication.
Claim 4
Dependent Claim
33 words
The invention as claimed in claim 1 or 2 wherein each of the said base units is either connectable solely to a telephone network (10) or solely to a radio telephone network (9).
Claim 5
Dependent Claim
31 words
The invention as claimed in claim 1 or 2 wherein at least one of the said base units is connectable to a telephone network (10) and a radio telephone network (9).
Claim 6
Dependent Claim
17 words
The invention as claimed in any preceding claim wherein the apparatus comprises at least three base units.
Claim 7
Dependent Claim
23 words
The invention as claimed in any preceding claim wherein each base unit may communicate with more than one PCT either sequentially or simultaneously.
Claim 8
Dependent Claim
33 words
The invention as claimed in any of the preceding claims wherein one of the base units is usable to provide some or all of the functions of a private branch exchange (PBX) (14,15).
Claim 9
Dependent Claim
32 words
The invention as claimed in any of the preceding claims wherein two or more of the base units (14) are centrally controlled to provide some or all the functions of a PBX.
Claim 10
Dependent Claim
51 words
The invention as claimed in any one of the preceding claims wherein the base units have different priorities and associated priority codes and wherein a PCT only communicates through a base unit having a lower priority code if it is unable to communicate through a base unit having a higher priority.
Claim 11
Dependent Claim
34 words
The invention as claimed in claim 9 wherein any base unit (3,3',13,14) connectable to a telephone network has a higher priority than a base unit (5,7) for use in a radio telephone network (9).
Claim 12
Dependent Claim
40 words
The invention as claimed in claim 10 wherein a hand-portable or transportable base unit (5) for use in a radio telephone network has a lower priority than a vehicle mounted base unit (7) for use in a radio telephone network.
Claim 13
Dependent Claim
20 words
The invention as claimed in claims 9-11 wherein each PCT (1) has a facility to alter a base unit priority.
Claim 14
Dependent Claim
19 words
The invention as claimed in any preceding claim wherein the telephone network (10) is a public switched telephone network.
Claim 15
Dependent Claim
22 words
The invention as claimed in any of the preceding claims wherein the radio telephone network (9) is a cellular radio telephone network.
Claim 16
Dependent Claim
21 words
The invention as claimed in claim 14 wherein the cellular radio telephone network is the U.K. TACS cellular radio telephone network.
Claim 17
Dependent Claim
22 words
16 . The invention as claimed in any one of claims 1-13 wherein the radio network is a private mobile radio network.
Claim 18
Dependent Claim
26 words
The invention as claimed in any one of claims 1-12 or 14-16 wherein the telephone network is a private telephone network or a private branch exchange.
Claim 19
Dependent Claim
17 words
Apparatus for use in a communication system substantially as hereinbefore described with reference to the accompanying drawings.
Claim 20
Dependent Claim
17 words
Apparatus for use in a communication system substantially as hereinbefore described with reference to the accompanying drawings.
References Cited (Backward Citations)
No citation records indexed.
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