US5214690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Facsimile device
Assignee: NEC Corp
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Filing: 1991-11-19
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Granted: 1993-05-25
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Expires: 2011-11-19
Abstract
Abstract When a facsimile device connected to a telephone line detects a call from a remote station and seizes the line while it is short of paper or jammed, it does not connect the telephone line to an external or substitute facsimile device until it determines that the remote station desires to hold a facsimile communication therewith.
Inventors
- 👤 Isao Ishigami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:37
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/32609; H04N1/32625; H04N1/32635; H04N1/32614; H04N1/32646; H04N1/32678
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
182 words
A facsimile device comprising: line connecting means connecting to a telephone line; substitute connecting means connecting to an external substitute facsimile device; a facsimile communication section; switching means for selectively setting up a communication path between a remote facsimile station connected to said telephone line and said facsimile communication section or between said remote facsimile station and said substitute facsimile device connected to said substitute connecting means; call detecting means for automatically detecting an incoming call from said telephone line; line closing means for closing the communication path to said telephone line on receiving call detection information from said call detecting means; initial identification (ID) signal detecting means for determining whether or not an initial ID signal for facsimile communication has been received over said telephone line; operable/non-operable determining means for determining whether or not said facsimile communication section is ready to operate; ringing feeding means for feeding a ringing to said substitute facsimile device to start said substitute facsimile device via said substitute connecting means; and answer detecting means for detecting an answer of said substitute facsimile device to said ringing.
Claim 2
Dependent Claim
182 words
A facsimile device comprising: line connecting means connecting to a telephone line; substitute connecting means connecting to an external substitute facsimile device; a facsimile communication section; switching means for selectively setting up a communication path between a remote facsimile station connected to said telephone line and said facsimile communication section or between said remote facsimile station and said substitute facsimile device connected to said substitute connecting means; call detecting means for automatically detecting an incoming call from said telephone line; line closing means for closing the communication path to said telephone line on receiving call detection information from said call detecting means; initial identification (ID) signal detecting means for determining whether or not an initial ID signal for facsimile communication has been received over said telephone line; operable/non-operable determining means for determining whether or not said facsimile communication section is ready to operate; ringing feeding means for feeding a ringing to said substitute facsimile device to start said substitute facsimile device via said substitute connecting means; and answer detecting means for detecting an answer of said substitute facsimile device to said ringing.
Claim 3
Dependent Claim
91 words
A device as claimed in claim 1, wherein when said initial ID signal detecting means and said operable/non-operable determining means report said switching means the reception of said initial ID signal and the non-operable state of said facsimile communication section, respectively, said switching means commands said ringing feeding means to feed a ringing to said substitute facsimile device and then, when said substitute facsimile device returns said answer as determined by said answer detecting means, connects said substitute facsimile device to said telephone line, instead of starting said facsimile communication section.
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) | 1996-05-24 | 1996-11-23 | 1997-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-24 | 2000-11-23 | 2001-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-24 | 2004-11-23 | 2005-05-25 | $7700.00 | Window Closed / Lapsed |