US3268664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic channel selector for communication systems
Assignee: Motors Liquidation Co
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Filing: 1962-10-10
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Granted: 1966-08-23
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Expires: 1982-10-10
Abstract
No abstract record available.
Inventors
- 👤 Robert W Fleissner
- 👤 Franklin E Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:32
CPC Classifications
H; H04; H04W; H04W72/00; H04W72/02; H04W4/00; H04W4/12; H04W48/00; H04W48/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN A COMBINATION SYSTEM HAVING A CALLING CHANNEL AND A PLURALITY OF MESSAGE CHANNELS, A RECEIVER HAVING A DECODER RESPONSIVE TO RECEIVED SIGNALS FOR PRODUCING AN ACQUISITION SIGNAL FOLLOWED BY A GROUP OF PULSES CORRESPONDING TO A SELECTED ONE OF THE MESSAGE CHANNELS, A CHANNEL SELECTOR CONNECTED TO THE DECODER AND INCLUDING A SELECTING SWITCH, MEANS CONNECTED TO THE SELECTING SWITCH RESPONSIVE TO THE AQUISITION SIGNAL FOR ENABLING THE CHANNEL SELECTOR, MEANS CONNECTED TO THE DECODER OUTPUT AND THE SELECTING SWITCH RESPONSIVE TO THE GROUP OF PULSES FOR CHANGING THE SELECTING SWITCH TO A NEW STATE EACH TIME ONE OF THE GROUP OF PULSES IS RECEIVED TO THEREBY CHANGE THE SELECTING SWITCH TO A STATE CORRESPONDING TO THE SELECTED MESSAGE CHANNEL, AND MEANS CONNECTED TO THE SELECTING SWITCH FOR EFFECTING TUNING OF THE RECEIVER TO THE SELECTED MESSAGE CHANNEL.
Claim 2
Dependent Claim
139 words
IN A COMBINATION SYSTEM HAVING A CALLING CHANNEL AND A PLURALITY OF MESSAGE CHANNELS, A RECEIVER HAVING A DECODER RESPONSIVE TO RECEIVED SIGNALS FOR PRODUCING AN ACQUISITION SIGNAL FOLLOWED BY A GROUP OF PULSES CORRESPONDING TO A SELECTED ONE OF THE MESSAGE CHANNELS, A CHANNEL SELECTOR CONNECTED TO THE DECODER AND INCLUDING A SELECTING SWITCH, MEANS CONNECTED TO THE SELECTING SWITCH RESPONSIVE TO THE AQUISITION SIGNAL FOR ENABLING THE CHANNEL SELECTOR, MEANS CONNECTED TO THE DECODER OUTPUT AND THE SELECTING SWITCH RESPONSIVE TO THE GROUP OF PULSES FOR CHANGING THE SELECTING SWITCH TO A NEW STATE EACH TIME ONE OF THE GROUP OF PULSES IS RECEIVED TO THEREBY CHANGE THE SELECTING SWITCH TO A STATE CORRESPONDING TO THE SELECTED MESSAGE CHANNEL, AND MEANS CONNECTED TO THE SELECTING SWITCH FOR EFFECTING TUNING OF THE RECEIVER TO THE SELECTED MESSAGE CHANNEL.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |