US5175759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communications device with movable element control interface
Assignee: Motorola Solutions Inc
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Filing: 1989-11-20
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Granted: 1992-12-29
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Expires: 2009-11-20
Abstract
Abstract A portable radiotelephone with a keypad, alphanumeric character display, and hands free function is disclosed. A movable flip element of the housing covers a keypad and other control buttons when in a closed, on-hook, position and activates the illumination of the keypad, enables the display, and enables the hands free function when in an open, off-hook, position. The duration of keypad illumination and display activation are timed to reduce battery drain and the hands free function may be deactivated with a hookswitch flash.
Inventors
- 👤 Michael P. Metroka
- 👤 Robert K. Krolopp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:13
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/60; H04M1/6033; H04M1/6041; H04M1/6075; H04M1/6083; H04M1/02; H04M1/0202; H04M1/0206; H04M1/0241; H04M1/0245; H04M1/72; H04M1/724; H04W; H04W52/00; H04W52/02; H04W52/0209; H04W52/0251; H04W52/0254; H01; H01H; H01H3/00; H01H3/02; H01H3/16; H01H3/161; H01H3/162; H04M1/0208; H04M1/0214; H04M1/0216; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
132 words
A radiotelephone apparatus having a portable unit with a movable housing element having an extended position and a contracted position, and a decouplable hands free apparatus, the radiotelephone apparatus comprising: means for producing an off-hook signal in the portable unit when the movable housing element is placed in the extended position and for producing an on-hook signal in the portable unit when the movable housing element has been placed in the contracted position; first means for detecting an occurrence of said on-hook signal and a subsequent off-hook signal within a predetermined period of time; second means for detecting a coupling of the decouplable hands free apparatus to the portable unit; and means, responsive to said first means for detecting and said second means for detecting, for activating the decouplable hands free apparatus.
Claim 2
Dependent Claim
132 words
A radiotelephone apparatus having a portable unit with a movable housing element having an extended position and a contracted position, and a decouplable hands free apparatus, the radiotelephone apparatus comprising: means for producing an off-hook signal in the portable unit when the movable housing element is placed in the extended position and for producing an on-hook signal in the portable unit when the movable housing element has been placed in the contracted position; first means for detecting an occurrence of said on-hook signal and a subsequent off-hook signal within a predetermined period of time; second means for detecting a coupling of the decouplable hands free apparatus to the portable unit; and means, responsive to said first means for detecting and said second means for detecting, for activating the decouplable hands free apparatus.
Claim 3
Dependent Claim
44 words
A radiotelephone apparatus in accordance with claim 1 further comprising means for deactivating an activated decouplable hands free apparatus when said first means for detecting detects a second occurrence of said on-hook signal and a subsequent off-hook signal within a predetermined period of time.
Claim 4
Independent Claim
149 words
A method of control of a decouplable hands free apparatus in a radiotelephone apparatus including a portable unit with a movable housing element having an extended position and a contracted position, the method comprising the steps of: producing an off-hook signal in the portable unit when the movable housing element is placed in the extended position; producing an on-hook signal in the portable unit when the movable housing element has been placed in the contracted position; detecting an occurrence of said on-hook signal and a subsequent off-hook signal within a predetermined period of time; detecting a coupling of the decouplable hands free apparatus to the portable unit; and activating the decouplable hands free apparatus in response to said detection of said on-hook signal and subsequent off-hook signal within a predetermined period of time and said detection of the coupling of the decouplable hands free apparatus to the portable unit.
Claim 5
Independent Claim
149 words
A method of control of a decouplable hands free apparatus in a radiotelephone apparatus including a portable unit with a movable housing element having an extended position and a contracted position, the method comprising the steps of: producing an off-hook signal in the portable unit when the movable housing element is placed in the extended position; producing an on-hook signal in the portable unit when the movable housing element has been placed in the contracted position; detecting an occurrence of said on-hook signal and a subsequent off-hook signal within a predetermined period of time; detecting a coupling of the decouplable hands free apparatus to the portable unit; and activating the decouplable hands free apparatus in response to said detection of said on-hook signal and subsequent off-hook signal within a predetermined period of time and said detection of the coupling of the decouplable hands free apparatus to the portable unit.
Claim 6
Dependent Claim
42 words
A method in accordance with claim 3 further comprising the step of deactivating an activated decouplable hands free apparatus in response to detection of a second occurrence of said on-hook signal and a subsequent off-hook signal within a predetermined period of time.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-12-29 | 1996-06-29 | 1996-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-29 | 2000-06-29 | 2000-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-29 | 2004-06-29 | 2004-12-29 | $7700.00 | Window Closed / Lapsed |