US5204986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery powered radio devices having a battery saving function
Assignee: Toshiba Corp
•
Filing: 1992-01-27
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Granted: 1993-04-20
•
Expires: 2012-01-27
Abstract
Abstract A radio apparatus having a battery saving function comprising an indicator for indicating that power is being supplied. An indicator is actuated in synchronization with the battery saving operation. In particular, a receiving circuit is intermittently triggered by the power supply and the indicator is intermittently triggered in synchronization with at least some of the power supply signals that trigger the receiving circuit. The period of actuation for the indicator may be less than the receiving circuit, which is intermittently actuated in accordance with a battery saving operation. Also, the indicator means may be actuated once for each n times that the receiving means is actuated.
Inventors
- 👤 Koichi Ito
- 👤 Yasuo Oonishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:07
CPC Classifications
G; G08; G08B; G08B3/00; G08B3/10; G08B3/1008; G08B3/1016; G08B3/1025; G08B3/1066; H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/1607; H04B1/1615; H04W; H04W52/00; H04W52/02; H04W52/0209; H04W52/0261; H04W52/0274; H04W88/00; H04W88/02; H04W88/022; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
191 words
A radio device comprising: radio receiving means for receiving radio signals broadcast over one or more radio channels, said radio signals including at least one synchronizing signal; power supply means for supplying said radio receiving means with electrical power; indicator means coupled to said power supply means for indicating an operating state of the device; low voltage detecting means for detecting a drop of voltage supplied from the power supply means, the operation of the power supply means being suspended when the low voltage detecting means detects the drop of voltage; and power supply control means, coupled to said power supply means, said radio receiver means, said low voltage detecting means and said indicator means, said power supply means responsive to said radio receiving means for detecting said at least one synchronization signal, and generating power supply signals in synchronization with said at least one synchronization signal and for controlling said power supply means so that said radio receiving means is intermittently powered by said power supply signals and said power supply control means terminates power to said indicator means when said low voltage detecting means detects a drop of voltage.
Claim 2
Dependent Claim
191 words
A radio device comprising: radio receiving means for receiving radio signals broadcast over one or more radio channels, said radio signals including at least one synchronizing signal; power supply means for supplying said radio receiving means with electrical power; indicator means coupled to said power supply means for indicating an operating state of the device; low voltage detecting means for detecting a drop of voltage supplied from the power supply means, the operation of the power supply means being suspended when the low voltage detecting means detects the drop of voltage; and power supply control means, coupled to said power supply means, said radio receiver means, said low voltage detecting means and said indicator means, said power supply means responsive to said radio receiving means for detecting said at least one synchronization signal, and generating power supply signals in synchronization with said at least one synchronization signal and for controlling said power supply means so that said radio receiving means is intermittently powered by said power supply signals and said power supply control means terminates power to said indicator means when said low voltage detecting means detects a drop of voltage.
Claim 3
Dependent Claim
30 words
The device of claim 1 wherein said indicator means is triggered to turn on in synchronization with the on state of the power supply signals supplied to the receiving means.
Claim 4
Dependent Claim
30 words
The device of claim 1 wherein said indicator means is triggered to turn off in synchronization with the off state of the power supply signals supplied to the receiving means.
Claim 5
Dependent Claim
47 words
The device of claim 2 further comprising time measuring means for measuring a time period from when said indicator means is triggered to turn on and wherein the power supplied to said indicator means is turned off when the measured time period exceeds a predetermined time period.
Claim 6
Dependent Claim
23 words
The device of claim 4 wherein said predetermined period is shorter than the time period during which said receiving means is turned on.
Claim 7
Dependent Claim
26 words
The device of claim 1 wherein said indicator means is triggered to turn on once for every n times that the receiving means is turned on.
Claim 8
Dependent Claim
176 words
A radio device comprising: radio receiving means for receiving radio signals broadcast over one or more radio channels, said radio signals including at least one synchronizing signal; power supply means for supplying said radio receiving means with electrical power; indicator means coupled to said power supply means for indicating an operating state of the device; low voltage detecting means for detecting a drop of voltage supplied from the power supply means, the operation of the power supply means being suspended when the low voltage detecting means detects the drop of voltage; and power supply control means, coupled to said power supply means, said radio receiving means and said indicator means, responsive to said radio receiving means for detecting said at least one synchronization signal, wherein said power supply control means controls said power supply such that said radio receiving means is intermittently supplied power in synchronization with said at least one synchronization signal and said power supply control means terminates power to said indicator means when said low voltage detecting means detects a drop of voltage.
Claim 9
Dependent Claim
176 words
A radio device comprising: radio receiving means for receiving radio signals broadcast over one or more radio channels, said radio signals including at least one synchronizing signal; power supply means for supplying said radio receiving means with electrical power; indicator means coupled to said power supply means for indicating an operating state of the device; low voltage detecting means for detecting a drop of voltage supplied from the power supply means, the operation of the power supply means being suspended when the low voltage detecting means detects the drop of voltage; and power supply control means, coupled to said power supply means, said radio receiving means and said indicator means, responsive to said radio receiving means for detecting said at least one synchronization signal, wherein said power supply control means controls said power supply such that said radio receiving means is intermittently supplied power in synchronization with said at least one synchronization signal and said power supply control means terminates power to said indicator means when said low voltage detecting means detects a drop of voltage.
Claim 10
Dependent Claim
38 words
The device of claim 7 wherein said power supply control means controls said power supply means so that power supply of said indicator means is turned on when the power supply of the receiving means is turned on.
Claim 11
Dependent Claim
38 words
The device of claim 7 wherein said power supply control means controls said power supply means so that power supply of said indicator means is turned off when the power supply of the receiving means is turned off.
Claim 12
Dependent Claim
38 words
The device of claim 7 wherein said power supply control means controls said power supply means so that power supplied to said indicator means is turned off before the power supplied to the receiving means is turned off.
Claim 13
Dependent Claim
34 words
The device of claim 7 wherein said power supply control means controls said power supply means so that said indicator means is activated once for every n times that said receiving means is activated.
Claim 14
Dependent Claim
27 words
The device of claim 7 wherein said indicator means comprises a light emitting diode for emitting light in response to drive current from said power supply means.
Claim 15
Dependent Claim
183 words
A radio device comprising: radio receiving means for receiving radio signals broadcast over one or more radio channels, said radio signals including at least one synchronizing signal; indicator means coupled to said radio receiving means for indicating an operating state of the device; power supply means for supplying said indicator means with electrical power; low voltage detecting means for detecting a drop of voltage supplied from the power supply means, the operation of the power supply means being suspended when the low voltage detecting means detects the drop of voltage; and power supply control means coupled to said radio receiving means and said power supply means and responsive to said radio receiving means for detecting said at least one synchronization signal, for controlling said power supply means to intermittently supply power to said radio receiving means, said power supply control means terminates power to said indicator means when said low voltage detecting means detects a drop of voltage whereby said indicator means is periodically activated in synchronization with said at least one synchronization signal and said receiving means intermittently receives said radio signals.
Claim 16
Dependent Claim
183 words
A radio device comprising: radio receiving means for receiving radio signals broadcast over one or more radio channels, said radio signals including at least one synchronizing signal; indicator means coupled to said radio receiving means for indicating an operating state of the device; power supply means for supplying said indicator means with electrical power; low voltage detecting means for detecting a drop of voltage supplied from the power supply means, the operation of the power supply means being suspended when the low voltage detecting means detects the drop of voltage; and power supply control means coupled to said radio receiving means and said power supply means and responsive to said radio receiving means for detecting said at least one synchronization signal, for controlling said power supply means to intermittently supply power to said radio receiving means, said power supply control means terminates power to said indicator means when said low voltage detecting means detects a drop of voltage whereby said indicator means is periodically activated in synchronization with said at least one synchronization signal and said receiving means intermittently receives said radio signals.
Claim 17
Dependent Claim
35 words
The device of claim 13 wherein said indicator means comprises a light emitting diode driven by a drive current provided from said power supply means and said receiving means is activated by the drive current.
Claim 18
Dependent Claim
155 words
A radio device comprising: radio receiving means for receiving radio signals broadcast over one or more radio channels, said radio signals including at least one synchronizing signal; control means coupled to said radio receiving means for detecting a predetermined signal sequence including said at least one synchronization signal and generating a power supply signal in synchronization with said at least one synchronization signal; power supply means responsive to the power supply signal for supplying power to said radio receiving means; low voltage detecting means for detecting a drop of voltage supplied from the power supply means, the operation of the power supply means being suspended when the low voltage detecting means detects the drop of voltage; and display means coupled to said power supply means for displaying an operating state of the device, said power supply control means terminating power to said display means when said low voltage detecting means detects a drop of voltage.
Claim 19
Dependent Claim
155 words
A radio device comprising: radio receiving means for receiving radio signals broadcast over one or more radio channels, said radio signals including at least one synchronizing signal; control means coupled to said radio receiving means for detecting a predetermined signal sequence including said at least one synchronization signal and generating a power supply signal in synchronization with said at least one synchronization signal; power supply means responsive to the power supply signal for supplying power to said radio receiving means; low voltage detecting means for detecting a drop of voltage supplied from the power supply means, the operation of the power supply means being suspended when the low voltage detecting means detects the drop of voltage; and display means coupled to said power supply means for displaying an operating state of the device, said power supply control means terminating power to said display means when said low voltage detecting means detects a drop of voltage.
Claim 20
Dependent Claim
157 words
A radio device comprising: radio receiving means for receiving radio signals broadcast over one or more radio channels, said radio signals including at least one synchronizing signal; control means coupled to said radio receiving means for detecting a predetermined signal sequence including said at least one synchronization signal and generating a power supply signal in synchronization with said at least one synchronization signal; power supply means responsive to the power supply signal for supplying power to said radio receiving means; low voltage detecting means for detecting a drop of voltage supplied from the power supply means, the operation of the power supply means being suspended when the low voltage detecting means detects the drop of voltage; and optical indicator means coupled to said power supply means for displaying an operating state of the device, said power supply control means terminating power to said optical indicator means when said low voltage detecting means detects a drop of voltage.
Claim 21
Dependent Claim
157 words
A radio device comprising: radio receiving means for receiving radio signals broadcast over one or more radio channels, said radio signals including at least one synchronizing signal; control means coupled to said radio receiving means for detecting a predetermined signal sequence including said at least one synchronization signal and generating a power supply signal in synchronization with said at least one synchronization signal; power supply means responsive to the power supply signal for supplying power to said radio receiving means; low voltage detecting means for detecting a drop of voltage supplied from the power supply means, the operation of the power supply means being suspended when the low voltage detecting means detects the drop of voltage; and optical indicator means coupled to said power supply means for displaying an operating state of the device, said power supply control means terminating power to said optical indicator means when said low voltage detecting means detects a drop of voltage.
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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) | 1996-04-19 | 1996-10-19 | 1997-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-19 | 2000-10-19 | 2001-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-19 | 2004-10-19 | 2005-04-20 | $7700.00 | Window Closed / Lapsed |