US3555189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic telephone answering mechanism
Assignee: Individual
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Filing: 1967-11-20
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Granted: 1971-01-12
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Expires: 1987-11-20
Abstract
Abstract An improved Automatic Telephone Answering Mechanism comprising a novel ring detector means which determines the proper time sequence of ringing detector means which determines the proper time sequence of ringing and silence by timing and logic circuit networks, thereby filtering out spurious telephone rings to automatically answer an associated telephone only when a true call is being made.
Inventors
- 👤 Jesse T Quatse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:50
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/64; H04M1/65; H04M1/654; G; G06; G06F; G06F3/00; G06F3/16; H04M1/82; H04M11/00; H04M11/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
400 words
An automatic telephone answering mechanism for providing a communicative linkup between a caller and a receiver by removing a handset from the cradle contacts of a telephone when said telephone rings in response to signals from said caller comprising: transducer pickup means disposed adjacent said handset and adapted to sense a ring signal emitted by said telephone and convert said ring signal to an electrical signal; ring detector means, coupled to said transducer pickup means, to discard spurious ring signals detected by said transducer pick up means and to produce an output signal from only ring signals eminated by said caller; said ring detector means comprising; first means for providing a first output indicative of ringing or not ringing in response to a ring signal, a timing means coupled to said first means for providing a second output when a ringing has occurred for at least a first period of time, a signal generator means coupled to said timing means for providing a third output indicative that ringing occurred for at least said first time period and this occurred during a second time period or before said second time period, a logic circuit means coupled to said first means and to said generating means for providing a fourth output indicative that ringing occurred during said first time period and no ringing has occurred prior to the end of said second time period, a second timing means coupled to said logic circuit for providing a fifth output indicative that ringing occurred for at least a third time period but not longer than said second time period, a second signal generator means coupled to said second timing means for providing a sixth output indicative that said sixth output occurred no longer than a fourth time period from said third time period ago, a second logic circuit means coupled to said second signal generator and said first timing means for providing a seventh output indicative that ringing occurred for at least said first time period, no ringing occurred for at least said third time period but no longer than said second time period and Ringing occurred again for at least said first time period no later than said fourth time period after said third time period, and electromechanical force means disposed adjacent said handset and adapted to receive said output signal whereby said handset is removed from said cradle contacts of said telephone.
Claim 2
Dependent Claim
400 words
An automatic telephone answering mechanism for providing a communicative linkup between a caller and a receiver by removing a handset from the cradle contacts of a telephone when said telephone rings in response to signals from said caller comprising: transducer pickup means disposed adjacent said handset and adapted to sense a ring signal emitted by said telephone and convert said ring signal to an electrical signal; ring detector means, coupled to said transducer pickup means, to discard spurious ring signals detected by said transducer pick up means and to produce an output signal from only ring signals eminated by said caller; said ring detector means comprising; first means for providing a first output indicative of ringing or not ringing in response to a ring signal, a timing means coupled to said first means for providing a second output when a ringing has occurred for at least a first period of time, a signal generator means coupled to said timing means for providing a third output indicative that ringing occurred for at least said first time period and this occurred during a second time period or before said second time period, a logic circuit means coupled to said first means and to said generating means for providing a fourth output indicative that ringing occurred during said first time period and no ringing has occurred prior to the end of said second time period, a second timing means coupled to said logic circuit for providing a fifth output indicative that ringing occurred for at least a third time period but not longer than said second time period, a second signal generator means coupled to said second timing means for providing a sixth output indicative that said sixth output occurred no longer than a fourth time period from said third time period ago, a second logic circuit means coupled to said second signal generator and said first timing means for providing a seventh output indicative that ringing occurred for at least said first time period, no ringing occurred for at least said third time period but no longer than said second time period and Ringing occurred again for at least said first time period no later than said fourth time period after said third time period, and electromechanical force means disposed adjacent said handset and adapted to receive said output signal whereby said handset is removed from said cradle contacts of said telephone.
Claim 3
Dependent Claim
155 words
The automatic telephone answering mechanism of claim 1 wherein: said first means comprises a discriminating circuit for providing said first output in response to a ring signal; said timing means comprises a first integrating circuit for providing said second output in response to said first output; said signal generator means comprises a first one-shot multivibrator circuit for providing said third output in response to said second output; said logic circuit means comprises a first AND circuit for providing said fourth output in response to said first and third outputs; said second timing means comprises a second integrating circuit for providing said fifth output in response to said fourth output; said second signal generator means comprises a second one-shot multivibrator circuit for providing said sixth output in response to said fifth output; and said second logic circuit means comprises a second AND circuit for providing said seventh output in response to said second and sixth outputs.
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |