US5353330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power conserving mobile telephone usable as a portable phone and as an installed phone
Assignee: NEC Corp
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Filing: 1992-02-05
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Granted: 1994-10-04
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Expires: 2012-02-05
Abstract
Abstract A mobile telephone usable both as a portable and as an installed telephone, capable of saving battery power when used as a portable telephone, and safely starting up voice-dialing when used as an installed telephone. Discriminating circuit (3, 3A, 14) discriminates which use the telephone is now in, portable or installed. In the former use, start-up circuit (7, 15) is manually activated to supply power from battery pack (1) to voice-dialing unit (8). The power supply is cut off in response to reset signal R supplied from the voice-dialing unit when voice-dialing ends. In the latter use, voice-dialing unit is kept switched on to the vehicle battery and ready for start-up in response to voice input.
Inventors
- 👤 Ryuhei Fujiwara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:35
CPC Classifications
H; H04; H04W; H04W52/00; H04W52/02; H04W52/0209; H04W52/0261; H04W52/0296; H04M; H04M1/00; H04M1/26; H04M1/27; H04M1/271; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
404 words
A mobile telephone comprising: a voice-dialing telephone unit and a battery pack, usable both as a portable telephone when the battery pack is attached to the voice-dialing telephone unit and as an installed telephone when the voice-dialing telephone unit is attached to a vehicle battery; discrimination means for discriminating the battery pack currently attached to the voice-dialing telephone unit; voice-dialing means for creating a telephone number through speech recognition, the voice-dialing means delivering a reset signal when voice dialing processing ends, provided that the battery pack is attached to the voice-dialing telephone unit; manual start-up means for manually commanding a start-up of the voice-dialing means, provided that the battery pack is attached to the voice-dialing telephone unit; and switching means for electrically connecting the voice-dialing means to the battery pack or to the vehicle battery to actuate the voice-dialing means, wherein, when the battery pack is attached to the voice-dialing telephone unit, the switching means turns on in response to a start-up command supplied from the manual start-up means and turns off when the reset signal is supplied from the voice-dialing means, and, when the voice-dialing telephone unit is attached to the vehicle battery, the switching means is retained in the on-state, wherein attaching the battery pack to the voice-dialing telephone unit, or the voice-dialing telephone unit to the vehicle battery is effected with first and second terminals of the voice-dialing telephone unit being electrically connected to first and second electrodes of the battery pack or vehicle battery respectively, and the discriminating means comprises a center tap provided in the battery pack having a predetermined potential with respect to the first or second electrode of the battery pack, a discriminating-signal terminal provided in the voice-dialing telephone unit, which couples with the terminal of the center tap when the battery pack is attached to the voice-dialing telephone unit, but does not couple with any electrode terminal in the vehicle battery when the voice-dialing telephone unit is attached to the vehicle battery, and a first resister connected between the first and discriminating-signal terminals of the voice-dialing telephone unit, whereby the discriminating means provides at the discriminating-signal terminal a discriminating signal of a first logic level corresponding to the potential of the center tap when the battery pack is attached to the voice-dialing telephone unit, and provides a discriminating signal of a second logic level corresponding to the potential of the first electrode of the vehicle battery.
Claim 2
Dependent Claim
404 words
A mobile telephone comprising: a voice-dialing telephone unit and a battery pack, usable both as a portable telephone when the battery pack is attached to the voice-dialing telephone unit and as an installed telephone when the voice-dialing telephone unit is attached to a vehicle battery; discrimination means for discriminating the battery pack currently attached to the voice-dialing telephone unit; voice-dialing means for creating a telephone number through speech recognition, the voice-dialing means delivering a reset signal when voice dialing processing ends, provided that the battery pack is attached to the voice-dialing telephone unit; manual start-up means for manually commanding a start-up of the voice-dialing means, provided that the battery pack is attached to the voice-dialing telephone unit; and switching means for electrically connecting the voice-dialing means to the battery pack or to the vehicle battery to actuate the voice-dialing means, wherein, when the battery pack is attached to the voice-dialing telephone unit, the switching means turns on in response to a start-up command supplied from the manual start-up means and turns off when the reset signal is supplied from the voice-dialing means, and, when the voice-dialing telephone unit is attached to the vehicle battery, the switching means is retained in the on-state, wherein attaching the battery pack to the voice-dialing telephone unit, or the voice-dialing telephone unit to the vehicle battery is effected with first and second terminals of the voice-dialing telephone unit being electrically connected to first and second electrodes of the battery pack or vehicle battery respectively, and the discriminating means comprises a center tap provided in the battery pack having a predetermined potential with respect to the first or second electrode of the battery pack, a discriminating-signal terminal provided in the voice-dialing telephone unit, which couples with the terminal of the center tap when the battery pack is attached to the voice-dialing telephone unit, but does not couple with any electrode terminal in the vehicle battery when the voice-dialing telephone unit is attached to the vehicle battery, and a first resister connected between the first and discriminating-signal terminals of the voice-dialing telephone unit, whereby the discriminating means provides at the discriminating-signal terminal a discriminating signal of a first logic level corresponding to the potential of the center tap when the battery pack is attached to the voice-dialing telephone unit, and provides a discriminating signal of a second logic level corresponding to the potential of the first electrode of the vehicle battery.
Claim 3
Dependent Claim
350 words
A mobile telephone comprising: a voice-dialing telephone unit and a battery pack, usable both as a portable telephone when the battery pack is attached to the voice-dialing telephone unit and as an installed telephone when the voice-dialing telephone unit is attached to a vehicle battery; discrimination means for discriminating the battery pack currently attached to the voice-dialing telephone unit; voice-dialing means for creating a telephone number through speech recognition, the voice-dialing means delivering a reset signal when voice dialing processing ends, provided that the battery pack is attached to the voice-dialing telephone unit; manual start-up means for manually commanding a start-up of the voice-dialing means, provided that the battery back is attached to the voice-dialing telephone unit; and switching means for electrically connecting the voice-dialing means to the battery pack or to the vehicle battery to actuate the voice-dialing means, wherein, when the battery pack is attached to the voice-dialing telephone unit, the switching means turns on in response to a start-up command supplied from the manual start-up means and turns off when the reset signal is supplied from the voice-dialing means, and, when the voice-dialing telephone unit is attached to the vehicle battery, the switching means is retained in the on-state, wherein attaching the battery pack to the voice-dialing telephone unit, or the voice-dialing telephone unit to the vehicle battery is effected with first and second terminals of the voice-dialing telephone unit being electrically connected to first and second electrodes of the battery pack or vehicle battery, respectively, and the manual start-up means comprises a resistor and a manually operable switch connected in series between the first and second terminals of the voice-dialing telephone unit, whereby a start-up signal indicative of start-up of the voice-dialing means is provided at the junction series between the first and second terminals of the voice-dialing telephone unit, whereby a start-up signal indicative of start-up of the voice-dialing means is provided at the junction of the resistor and the switch when the switch is manually operated to activate the manual start-up means, provided that the battery pack is attached to the voice-dialing telephone unit.
Claim 4
Dependent Claim
350 words
A mobile telephone comprising: a voice-dialing telephone unit and a battery pack, usable both as a portable telephone when the battery pack is attached to the voice-dialing telephone unit and as an installed telephone when the voice-dialing telephone unit is attached to a vehicle battery; discrimination means for discriminating the battery pack currently attached to the voice-dialing telephone unit; voice-dialing means for creating a telephone number through speech recognition, the voice-dialing means delivering a reset signal when voice dialing processing ends, provided that the battery pack is attached to the voice-dialing telephone unit; manual start-up means for manually commanding a start-up of the voice-dialing means, provided that the battery back is attached to the voice-dialing telephone unit; and switching means for electrically connecting the voice-dialing means to the battery pack or to the vehicle battery to actuate the voice-dialing means, wherein, when the battery pack is attached to the voice-dialing telephone unit, the switching means turns on in response to a start-up command supplied from the manual start-up means and turns off when the reset signal is supplied from the voice-dialing means, and, when the voice-dialing telephone unit is attached to the vehicle battery, the switching means is retained in the on-state, wherein attaching the battery pack to the voice-dialing telephone unit, or the voice-dialing telephone unit to the vehicle battery is effected with first and second terminals of the voice-dialing telephone unit being electrically connected to first and second electrodes of the battery pack or vehicle battery, respectively, and the manual start-up means comprises a resistor and a manually operable switch connected in series between the first and second terminals of the voice-dialing telephone unit, whereby a start-up signal indicative of start-up of the voice-dialing means is provided at the junction series between the first and second terminals of the voice-dialing telephone unit, whereby a start-up signal indicative of start-up of the voice-dialing means is provided at the junction of the resistor and the switch when the switch is manually operated to activate the manual start-up means, provided that the battery pack is attached to the voice-dialing telephone unit.
Claim 5
Dependent Claim
138 words
A mobile telephone as claimed in claim 2, wherein the switching means comprises a switching transistor for connecting the voice-dialing means to the battery pack or the vehicle battery in response to an on/off control signal, a set/reset flip-flop for providing the on/off control signal, which is reset by the reset signal supplied from the voice-dialing means, and gate means for providing a set signal to the set/reset flip-flop, the gate means delivering the set signal either when both the battery pack is attached to the voice-dialing telephone unit and the start-up signal is supplied from the manual start-up means, or when the voice-dialing telephone unit is attached to the vehicle battery, the set/reset flip-flop delivering an on/off signal when it receives the set signal and stopping output of the on/off signal when it receives the reset signal.
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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) | 1997-10-03 | 1998-04-04 | 1998-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-03 | 2002-04-04 | 2002-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-03 | 2006-04-04 | 2006-10-04 | $7700.00 | Window Closed / Lapsed |