US4677660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communication apparatus selectively operable in voice-communication or in image-communication
Assignee: Canon Inc
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Filing: 1984-08-23
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Granted: 1987-06-30
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Expires: 2004-08-23
Abstract
Abstract The communication apparatus is provided with a timer for time counting a predetermined time interval and in the case where a control signal was detected witin a predetermined time interval, the automatic reception is done in the facsimile mode and image information is received. In the case where the control signal could not be detected within the predetermined time interval, the communication is done in telephone mode and the voice-communication is performed. Further, with such a constitution, the facsimile mode and the telephone mode are automatically switched, thereby enabling the image reception or voice-communication to be executed in correspondence upon a communication apparatus on the distant side.
Inventors
- 👤 Takehiro Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:33
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/327; H04N1/32704; H04N1/32706; H04N1/32708; H04N1/32715; H04N1/32717; H04N1/32732; H04N1/32739; H04N1/32741; Y; Y10; Y10S; Y10S379/00; Y10S379/902
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
153 words
A facsimile receiving apparatus comprising: first detecting means for detecting an establishment of a communications link between said receiving apparatus and distant apparatuses, including a transmitting facsimile apparatus; signal sending means for sending an image reception mode signal in response to the detecting result of said first detecting means; second detecting means detecting for a response signal which is sent by said transmitting facsimile apparatus in response to the image reception mode signal, the response signal including a signal representing an image transmission mode of the transmitting facsimile apparatus; operator calling means for generating a calling signal for an operator when said second detecting means does not detect the response signal from said transmitting facsimile apparatus within a predetermined period of time; and means for enabling facsimile information transfer from said transmitting facsimile to said receiver facsimile apparatus when said second detecting means detects the response signal within said predetermined period of time.
Claim 2
Dependent Claim
153 words
A facsimile receiving apparatus comprising: first detecting means for detecting an establishment of a communications link between said receiving apparatus and distant apparatuses, including a transmitting facsimile apparatus; signal sending means for sending an image reception mode signal in response to the detecting result of said first detecting means; second detecting means detecting for a response signal which is sent by said transmitting facsimile apparatus in response to the image reception mode signal, the response signal including a signal representing an image transmission mode of the transmitting facsimile apparatus; operator calling means for generating a calling signal for an operator when said second detecting means does not detect the response signal from said transmitting facsimile apparatus within a predetermined period of time; and means for enabling facsimile information transfer from said transmitting facsimile to said receiver facsimile apparatus when said second detecting means detects the response signal within said predetermined period of time.
Claim 3
Dependent Claim
33 words
An apparatus according to claim 1, further comprising speech enabling means for enabling a speech operation when said second detecting means does not detect the response signal within said predetermined period of time.
Claim 4
Dependent Claim
22 words
An apparatus according to claim 2, wherein said speech enabling means is adapted to connect a communication line with a telephone station.
Claim 5
Dependent Claim
15 words
An apparatus according to claim 1, wherein said first detecting means detects a ringing signal.
Claim 6
Dependent Claim
14 words
An apparatus according to claim 1, wherein said operator calling means generates a tone.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-29 | 1990-12-29 | 1991-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-29 | 1994-12-29 | 1995-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-29 | 1998-12-29 | 1999-06-30 | $7700.00 | Window Closed / Lapsed |