EP0563864A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Cordless telephone system for radio communication even in an outdoor area
Assignee: Casio Computer Co Ltd
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Filing: 1993-03-29
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Granted: —
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Expires: 2013-03-29
Abstract
Abstract In a cordless telephone system, a radio communication unit (4) is detachably provided with a base unit (100) of this cordless telephone system. While the radio communication unit (4) is electrically and physically separated from the telephone base unit (100), and brought out from a home or a firm, a radio communication is established between the radio communication unit (100) and a telephone mobile unit, but also between the telephone mobile unit and a telephone subscriber via the base unit (100). Thus, an outdoor type telephone mobile unit is available in the cordless telephone system. <IMAGE>
Inventors
- 👤 Naruhiko c/o Hamura R & D Center Sakamoto
- 👤 Shinjiro c/o Hamura R & D Center Ishida
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 04:17
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/72; H04M1/725; H04M1/72502; H04M1/60; H04M1/6033; H04M1/6041; H04M1/64; H04M1/65; H04M1/6505
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
71 words
A cordless telephone system comprising: a main body of a telephone base unit (100:200:300); a radio communication unit (4:4A:41) detachably connected to said main body of the telephone base unit (100:200:300), for performing a radio communication with a telephone mobile unit; and a telephone channel interface unit (21) provided within said main body of the telephone base unit (100:200:300), for interfacing said radio communication unit (4:4A:41) with a telephone subscriber line.
Claim 2
Dependent Claim
31 words
A cordless telephone system as claimed in claim 1, wherein said main body of the telephone base unit (100:200:300) has a storage portion capable of storing said radio communication unit (4:4A:41).
Claim 3
Dependent Claim
38 words
A cordless telephone system as claimed in claim 1, wherein said radio communication unit (4:4A:41) is electrically connected to said telephone channel interface unit when being electrically connected to said main body of the telephone base unit (100:200:300).
Claim 4
Dependent Claim
44 words
A cordless telephone system as claimed in claim 1, wherein said radio communication unit (4:4A:41) includes a battery (35:36), and is powered by said battery (35:36) when said radio communication unit (4:4A:41) is separated from said main body of the telephone base unit (100:200:300).
Claim 5
Dependent Claim
28 words
A cordless telephone system as claimed in claim 1, further comprising: a first telephone mobile unit capable of establishing a radio communication with said radio communication unit (4:4A:41).
Claim 6
Dependent Claim
45 words
A cordless telephone system as claimed in claim 5, further comprising: a second telephone mobile unit capable of establishing a radio communication with said radio communication unit (4:4A:41) and also another radio communication with said first telephone mobile unit via said radio communication unit (4:4A:41).
Claim 7
Dependent Claim
35 words
A cordless telephone system as claimed in claim 6, wherein said radio communication unit (4:4A:41) includes: mobile unit selecting means (7) for selectively calling a specific mobile unit from said first and second mobile units.
Claim 8
Dependent Claim
42 words
A cordless telephone system as claimed in claim 1, wherein said radio communication unit (41) includes a speaker (42) and a microphone (45), by which a radio communication is carried out between the telephone mobile unit and said radio communication unit (41).
Claim 9
Dependent Claim
27 words
A cordless telephone system as claimed in claim 1, wherein said radio communication unit (4:4A) includes: a terminal unit (12) for connecting a speaker and a microphone.
Claim 10
Dependent Claim
53 words
A cordless telephone system as claimed in claim 1, wherein said main body of the telephone base unit (100) further includes: a handset (1) capable of communicating with said telephone subscriber line, irrelevant to a connection/disconnection state between said radio communication unit (4) and said main body of the telephone base unit (100).
Claim 11
Dependent Claim
103 words
A cordless telephone apparatus with an automatic telephone message recording function, comprising: a main body of a telephone base unit (100:200:300); a radio communication unit (4:4A:41) detachably connected to said main body of the telephone base unit (100:200:300), for performing a radio communication with a telephone mobile unit; a telephone channel interface unit (21) provided within said main body of the telephone base unit (100:200:300), for interfacing said radio communication unit (4:4A:41) with a telephone subscriber line; and an automatic telephone message recording unit (3) provided within said main body of the telephone base unit (100:200:300), capable of automatically recording a telephone message.
Claim 12
Dependent Claim
82 words
A cordless telephone apparatus with an automatic telephone message recording function, as claimed in claim 11, further comprising: sensing means for sensing that said radio communication unit (4:4A:41) is separated from said main body of the telephone base unit (100:200:300), thereby producing a separation sensing signal; and control means (22) for controlling an operation mode of said cordless telephone apparatus to be set to an automatic telephone message recording mode in response to said separation sensing signal derived from said sensing means.
Claim 13
Dependent Claim
45 words
A cordless telephone apparatus with an automatic telephone message recording function, as claimed in claim 11, wherein said radio communication unit (4:4A:41) is electrically connected to said telephone channel interface unit when being electrically connected to said main body of the telephone base unit (100:200:300).
Claim 14
Dependent Claim
57 words
A cordless telephone apparatus with an automatic telephone message recording function, as claimed in claim 11, wherein said radio communication unit (41) includes: a key input unit (7) for inputting a telephone number; a speaker (42) for speaking a voice of a telephone operator; and a microphone (45) for picking up a voice of a telephone operator.
Claim 15
Dependent Claim
68 words
A cordless telephone apparatus with an automatic telephone message recording function, as claimed in claim 14, wherein when said radio communication unit (41) is connected to said main body of the telephone base unit (300), said main body of the telephone base unit (300) performs a telephone communication with the telephone subscriber line with employment of said key input unit (7), said speaker (42), and said microphone (45).
Claim 16
Dependent Claim
53 words
A cordless telephone apparatus with an automatic telephone message recording function, as claimed in claim 15, wherein when said radio communication unit (41) is connected to the main body of said telephone base unit (300), said cordless telephone apparatus with the automatic telephone message recording function is operable as a hand-free telephone apparatus.
Claim 17
Dependent Claim
58 words
A data transmission apparatus comprising: a housing of the data transmission apparatus; a radio communication unit detachably connected to said housing, for performing a radio data communication with other radio communication unit; and a channel interface unit provided inside said housing of the data transmission apparatus, for connecting said radio communication unit to an external data transmission line.
Claim 18
Dependent Claim
37 words
A data transmission apparatus as claimed in claim 17, wherein when said radio communication unit is connected to said housing of the data transmission apparatus, said radio communication unit is electrically connected to said channel interface unit.
Claim 19
Dependent Claim
36 words
A data transmission apparatus as claimed in claim 18, wherein when said radio communication unit is connected to said housing, said radio communication unit transmits and receives data to/from said housing of said data transmission apparatus.
Claim 20
Dependent Claim
60 words
A data transmission apparatus as claimed in claim 17, wherein said other radio communication unit corresponds to a mobile unit for said housing of the data transmission apparatus, and said radio communication unit performs a radio data communication with said mobile unit, irrelevant to a connection/disconnection condition of said radio communication unit to said housing of the data transmission apparatus.
References Cited (Backward Citations)
No citation records indexed.
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