EP0337610A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Facsimile apparatus
Assignee: Canon Inc
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Filing: 1989-03-14
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Granted: —
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Expires: 2009-03-14
Abstract
Abstract A facsimile apparatus connected on an ISDN side in a communication network in which the ISDN is connected to a telephone network includes network identifying means (4) for identifying whether an incoming data sending party is an ISDN terminal or a telephone network terminal, CNG signal detecting means (7a) for detecting a CNG signal received via a B channel, and changeover means for changing over between automatic reception and manual reception. In a case where the CNG signal is detected, a response is made in a facsimile mode. In a case where the CNG signal is not detected, a response is made in a facsimile mode if automatic reception prevails and in a telephone mode if manual reception prevails. This arrangement eliminates communication failure due to a difference in mode between a calling side and a called side regardless of the network terminal from which a call is received.
Inventors
- 👤 Naoto Kagami
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 20:32
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/327; H04N1/32704; H04N1/32706; H04N1/32708; H04N1/32715; H04N1/32719; H04N1/32747; H04N1/3275; H04N1/333; H04N1/33307; H04N1/33323; H04N1/33338; 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; H04N2201/33371; H04Q2213/00; H04Q2213/179; H04Q2213/204; H04Q2213/297; Y; Y10; Y10S; Y10S379/00; Y10S379/902
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
76 words
A facsimile apparatus connected to an ISDN, comprising: first communication means for communicating in G4 facsimile mode; second communication means for communicating in G3 facsimile mode; detecting means for detecting a signal from G3 facsimile received via a B channel; and control means for selecting said second communication means to communicate in G3 facsimile mode according to the signal detected by said detecting means or selecting said first communication means when the signal is not detected.
Claim 2
Dependent Claim
76 words
A facsimile apparatus connected to an ISDN, comprising: first communication means for communicating in G4 facsimile mode; second communication means for communicating in G3 facsimile mode; detecting means for detecting a signal from G3 facsimile received via a B channel; and control means for selecting said second communication means to communicate in G3 facsimile mode according to the signal detected by said detecting means or selecting said first communication means when the signal is not detected.
Claim 3
Dependent Claim
17 words
The facsimile apparatus according to claim 1, wherein said signal from G3 facsimile is a CNG signal.
Claim 4
Dependent Claim
78 words
The facsimile apparatus according to claim 1, further comprising changeover means for changing over between automatic mode to communicate automatically in response to a call received from the ISDN and manual mode to communicate manually in course of manual instructions, said control means select said second communication means to communicate in G3 facsimile mode in spite of whether the mode is said automatic mode or said manual mode, whenever said detecting means detects the signal from G3 facsimile.
Claim 5
Dependent Claim
105 words
A facsimile apparatus connected to an ISDN, comprising: first communication means for communicating in G4 facsimile mode; second communication means for communicating in G3 facsimile mode; changeover means for changing over between automatic mode to communicate automatically in response to a call received from the ISDN and manual mode to communicate manually in course of manual instructions; detecting means for detecting a signal from G3 facsimile received via a B channel; and control means for selecting said second communication means to communicate in G3 facsimile mode in spite of the mode set by said changeover means, when said signal is detected by said detecting means.
Claim 6
Dependent Claim
105 words
A facsimile apparatus connected to an ISDN, comprising: first communication means for communicating in G4 facsimile mode; second communication means for communicating in G3 facsimile mode; changeover means for changing over between automatic mode to communicate automatically in response to a call received from the ISDN and manual mode to communicate manually in course of manual instructions; detecting means for detecting a signal from G3 facsimile received via a B channel; and control means for selecting said second communication means to communicate in G3 facsimile mode in spite of the mode set by said changeover means, when said signal is detected by said detecting means.
Claim 7
Dependent Claim
17 words
The facsimile apparatus according to claim 4, wherein said signal from G3 facsimile is a CNG signal.
Claim 8
Dependent Claim
29 words
The facsimile apparatus according to claim 4, further comprising network identifying means for identifying whether an incoming data sending party is an ISDN terminal or an analogue network terminal.
Claim 9
Dependent Claim
29 words
The facsimile apparatus according to claim 1, further comprising network identifying means for identifying whether an incoming data sending party is an ISDN terminal or an analogue network terminal.
Claim 10
Dependent Claim
25 words
The facsimile apparatus according to claim 3, further comprising telephone means for telephoning to respond to signals received from the ISDN in said manual mode.
Claim 11
Dependent Claim
25 words
The facsimile apparatus according to claim 4, further comprising telephone means for telephoning to respond to signals received from the ISDN in said manual mode.
Claim 12
Dependent Claim
125 words
A facsimile apparatus connected on an ISDN in a communication network in which the ISDN is connected to a telephone network, comprising: network identifying means for identifying whether an incoming data sending party is an ISDN terminal or a telephone network terminal; CNG signal detecting means for detecting a CNG signal received via a B channel; and changeover means for changing over between automatic reception and manual reception; response being made in a facsimile mode in a case where said CNG signal is detected, in the facsimile mode if automatic reception is in effect in a case where said CNG signal is not detected, and in a telephone mode if manual reception is in effect in a case where said CNG signal is not detected.
Claim 13
Dependent Claim
125 words
A facsimile apparatus connected on an ISDN in a communication network in which the ISDN is connected to a telephone network, comprising: network identifying means for identifying whether an incoming data sending party is an ISDN terminal or a telephone network terminal; CNG signal detecting means for detecting a CNG signal received via a B channel; and changeover means for changing over between automatic reception and manual reception; response being made in a facsimile mode in a case where said CNG signal is detected, in the facsimile mode if automatic reception is in effect in a case where said CNG signal is not detected, and in a telephone mode if manual reception is in effect in a case where said CNG signal is not detected.
Claim 14
Dependent Claim
72 words
Facsimile apparatus for use with an ISDN, the apparatus being operable as Group 4 facsimile apparatus or as facsimile apparatus of a group before Group 4, the apparatus having means to detect that a received signal is a predetermined signal characteristic of a facsimile apparatus of a group before Group 4, and operating as facsimile apparatus of a group before Group 4 in response to the detection of a said received signal.
Claim 15
Dependent Claim
72 words
Facsimile apparatus for use with an ISDN, the apparatus being operable as Group 4 facsimile apparatus or as facsimile apparatus of a group before Group 4, the apparatus having means to detect that a received signal is a predetermined signal characteristic of a facsimile apparatus of a group before Group 4, and operating as facsimile apparatus of a group before Group 4 in response to the detection of a said received signal.
References Cited (Backward Citations)
No citation records indexed.
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