EP0454452A2
Expired / Lapsed
EP
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Data communication apparatus
Assignee: Canon Inc
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Filing: 1991-04-25
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Granted: —
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Expires: 2011-04-25
Abstract
Abstract A data communication apparatus comprises a first switching means which switches over between data communication and speech communication depending as whether or not a signal indicating data communication mode is received within a predetermined period of time, a second switching means which switches over between data communication and speech communication depending as whether or not a response signal to a procedure signal is received in a predetermined period of time, detecting means for detecting a state of the apparatus, and selecting means for selecting one of the first and second switching means.
Inventors
- 👤 Takehiro C/O Canon Kabushiki Kaisha Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 13:21
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/327; H04N1/32704; H04N1/32706; H04N1/32708; H04N1/32715; H04N1/32717; H04N1/32719; H04N1/32721; H04N1/32728; H04N1/32732; H04N1/32739; H04N1/32741; H04N1/32743; H04N1/32747; H04N1/3275; Y; Y10; Y10S; Y10S379/00; Y10S379/902
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
73 words
A data communication apparatus having a first switchover mode and a second switchover mode for switching over between data communication and speech communication, comprising; detection means for detecting a condition of the apparatus; control means for selecting one of said first switchover mode and said second switchover mode according to the detection by said detection means and for conducting automatic switchover control between data communication and speech communication in the selected switchover mode.
Claim 2
Dependent Claim
19 words
An apparatus according to Claim 1, wherein said detection means detects whether the communication data is set or not.
Claim 3
Dependent Claim
65 words
An apparatus according to Claim 1, wherein said first switchover mode is set to detect whether a signal indicating data communication is received while sending a signal indicating on-calling, and to conduct data communication if the signal indicating data communication is received, while to conduct a process for speech communication if the signal indicating data communication is not received within a predetermined period of time.
Claim 4
Dependent Claim
72 words
An apparatus according to Claim 1, wherein said second switchover mode is set to send a procedure signal for data communication and detects whether a response signal to the transmitted procedure signal is received within a predetermined period of time, and to conduct data communication if the response signal is received within the predetermined period of time while to conduct a process for speech communication if the response signal is not received.
Claim 5
Independent Claim
75 words
A method for switching over between data communication and speech communication, provided with at least a first switchover mode and a second switchover mode, said method comprising the steps of: detecting a condition of a data communication apparatus; selecting one of the first switchover mode and the second switchover mode according to the result of the said detection; and conducting an automatic switchover control between data communication and speech communication in the selected switchover mode.
Claim 6
Dependent Claim
23 words
A method according to Claim 5, wherein said detection step, it is detected whether communication data is set in the data communication apparatus.
Claim 7
Dependent Claim
66 words
A method according to Claim 5, wherein said first switchover mode is set to detect whether a signal indicating data communication is received while sending a signal indicating on-calling, and to conduct data communication if the signal indicating that data communication is received, while to conduct a process for speech communication if the signal indicating data communication is not received within a predetermined period of time.
Claim 8
Dependent Claim
72 words
A method according to Claim 5, wherein said second switchover mode is set to send a procedure signal for data communication and detects whether a response signal to the transmitted procedure signal is received within a predetermined period of time, and to conduct data communication if the response signal is received within the predetermined period of time while to conduct a process for speech communication if the response signal is not received.
Claim 9
Dependent Claim
77 words
A data communication apparatus comprising; first switchover means for switching over automatically between data communication and speech communication; second switchover means different in a switching manner from said first switchover means; detection means for detecting a condition of said apparatus; and means for, selecting one of said first switchover means or said second switchover means according to the detection of said detection means; wherein, the selected switchover means automatically switches over between data communication and sound communication.
Claim 10
Dependent Claim
19 words
An apparatus according to Claim 9, wherein said detection means detects whether the communication data is set or not.
Claim 11
Dependent Claim
56 words
An apparatus according to Claim 9, wherein said first switchover means detects whether a signal indicating data communication is received while sending a signal indicating on-calling, and if the signal indicating the data communication is received within a predetermined period of time, said first switchover means selects data communication while if not, selects the speech communication.
Claim 12
Dependent Claim
64 words
An apparatus according to Claim 9, wherein said second switchover means sends a procedure signal for data communication and detects whether a response signal to the transmitted procedure signal is received within a predetermined period of time, and if the response signal is received within a predetermined period of said second switchover means continues the data communication while if not, selects the speech communication.
References Cited (Backward Citations)
No citation records indexed.
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