Patent US4543306A successfully refreshed from Google Patents.
EP0409622A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Communication terminal equipment
Assignee: Canon Inc
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Filing: 1990-07-19
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Granted: —
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Expires: 2010-07-19
Abstract
Abstract A data communication apparatus includes a command receiving unit for receiving a command for setting up a call; a discriminating unit for discriminating a bearer capability included in the command received by the command receiving unit; and a judging unit for judging if a modem is to be used or not, in accordance with a discrimination result by the discriminating unit.
Inventors
- 👤 Takashi C/O Canon Kabushiki Kaisha Takeda
- 👤 Hiroshi C/O Canon Kabushiki Kaisha Hamada
- 👤 Haruo C/O Canon Kabushiki Kaisha Ishizuka
- 👤 Kanichi C/O Canon Kabushiki Kaisha Yoshino
- 👤 Yoshihisa C/O Canon Kabushiki Kaisha Tadokoro
- 👤 Naoyuki C/O Canon Kabushiki Kaisha Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 17:13
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/333; H04N1/33346; H04M; H04M11/00; H04M11/06; H04N1/33307; H04N1/33323; H04N1/33353; H04N1/33392; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0435; H04Q11/0471; H04N2201/00; H04N2201/32; H04N2201/333; H04N2201/33307; H04N2201/33342; H04N2201/33364; H04Q2213/00; H04Q2213/034; H04Q2213/179; H04Q2213/199; H04Q2213/204
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
58 words
A data communication apparatus comprising: command receiving means for receiving a command for setting up a call; discriminating means for discriminating a bearer capability included in the command received by said command receiving means; and selecting means for selecting whether a modem is to be used or not, in accordance with a discrimination result of said discriminating means.
Claim 2
Dependent Claim
58 words
A data communication apparatus comprising: command receiving means for receiving a command for setting up a call; discriminating means for discriminating a bearer capability included in the command received by said command receiving means; and selecting means for selecting whether a modem is to be used or not, in accordance with a discrimination result of said discriminating means.
Claim 3
Dependent Claim
30 words
A data communication apparatus according to claim 1, wherein said discriminating means discriminates whether the bearer capability included in the command is a non-limited digital mode or an audio mode.
Claim 4
Dependent Claim
63 words
A data communication apparatus according to claim 2, wherein said selecting means selects that said modem is not to be used for data reception if said discriminating means discriminates that the bearer capability is the non-limited digital mode, and selects that said modem is to be used for data reception if said discriminating means discriminates that the bearer capability is the audio mode.
Claim 5
Dependent Claim
39 words
A data communication apparatus according to claim 1, further comprising image data receiving means and outputting means for outputting received image data by using or not using said modem in accordance with a selected result of said selecting means.
Claim 6
Dependent Claim
52 words
A data communication apparatus according to claim 4, wherein said data communication apparatus is connected to an integrated service digital network (ISDN), said command receiving means receives the command from a control channel of said ISDN, and said image data receiving means receives image data from an information channel of said ISDN.
Claim 7
Dependent Claim
77 words
A data communication apparatus comprising: notifying means for notifying a reception terminal that data is to be transmitted without using a modem; receiving means for receiving a response signal from said reception terminal; discriminating means for discriminating whether the response signal indicates an enable state of reception; and data transmitting means for transmitting data to said reception terminal without using said modem if said discriminating means discriminates that the response signal indicates the enable state of reception.
Claim 8
Dependent Claim
77 words
A data communication apparatus comprising: notifying means for notifying a reception terminal that data is to be transmitted without using a modem; receiving means for receiving a response signal from said reception terminal; discriminating means for discriminating whether the response signal indicates an enable state of reception; and data transmitting means for transmitting data to said reception terminal without using said modem if said discriminating means discriminates that the response signal indicates the enable state of reception.
Claim 9
Dependent Claim
38 words
A data communication apparatus according to claim 6, further comprising image reading means for reading an original document and generating image data, and wherein said data transmitting means transmits the image data generated by said image reading means.
Claim 10
Dependent Claim
41 words
A data communication apparatus according to claim 6, wherein said discriminating means discriminates that the response signal is a signal representative of that reception is disabled, said data transmitting means transmits the data to said reception terminal by using said modem.
Claim 11
Dependent Claim
40 words
A data communication apparatus according to claim 8, further comprising means for disconnecting a call, if it is discriminated as the reception disabled signal, and then notifying said reception terminal that the data is transmitted again by using said modem.
Claim 12
Dependent Claim
52 words
A data communication apparatus according to claim 6, wherein said notifying means notifies said reception terminal that the data is transmitted without using said modem, by transmitting a command for setting up a call to said reception terminal by setting the bearer capability included in the command at a non-limited digital mode.
Claim 13
Dependent Claim
26 words
A data communication apparatus according to claim 6, wherein said data transmitting means transmits the data by executing a G3 facsimile protocol of CCITT Recommendation T.30.
References Cited (Backward Citations)
No citation records indexed.
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