US4726052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio telephone system and method for controlling same
Assignee: Toshiba Corp
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Filing: 1986-10-02
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Granted: 1988-02-16
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Expires: 2006-10-02
Abstract
Abstract In a radio telephone system comprising a radio telephone set utilizing a rechargeable battery, and a base unit connected to the radio telepone set through a radio channel for exchanging a speech signal between the radio telephone set and a wired telephone line, there are provided a detector for detecting the charged state of the battery, a terminating device responsive to the output signal of the detector for terminating the radio channel between the radio telephone set and the base unit.
Inventors
- 👤 Kaoru Kato
- 👤 Kazuhiro Yoshizawa
- 👤 Akio Yotsutani
- 👤 Noboru Saegusa
- 👤 Isao Sasaki
- 👤 Koichi Ito
- 👤 Akio Toki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:22
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/72; H04M1/725; H04M1/73; Y; Y10; Y10S; Y10S320/00; Y10S320/18; Y10S320/19; Y10S320/21
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
109 words
A radio telephone system comprising: a radio telephone set utilizing a rechargeable battery as an electric source; a base unit connected to said radio telephone set through a radio chanel for exchanging voice communications by means of a speech signal between said radio telephone set and a wired telephone line; charging means for charging said battery; means for connecting said radio telephone set to said charging means so as to charge said battery; means for detecting whether or not said battery is being charged; and means for terminating said radio channel between said radio telephone set and said base unit responsive to an output signal of said detecting means.
Claim 2
Dependent Claim
109 words
A radio telephone system comprising: a radio telephone set utilizing a rechargeable battery as an electric source; a base unit connected to said radio telephone set through a radio chanel for exchanging voice communications by means of a speech signal between said radio telephone set and a wired telephone line; charging means for charging said battery; means for connecting said radio telephone set to said charging means so as to charge said battery; means for detecting whether or not said battery is being charged; and means for terminating said radio channel between said radio telephone set and said base unit responsive to an output signal of said detecting means.
Claim 3
Dependent Claim
18 words
The radio telephone system according to claim 1 wherein said detecting means is provided at said base unit.
Claim 4
Dependent Claim
64 words
The radio telephone system according to claim 1 wherein said terminating means comprises means provided at said base unit for turning on a radio set of said base unit in response to the output of said detecting means, and means provided at said radio telephone set for turning off a radio set of said radio telephone set when there is no received electric wave.
Claim 5
Dependent Claim
19 words
The radio telephone system according to claim 1 wherein said detecting means is provided at said radio telephone set.
Claim 6
Dependent Claim
39 words
The radio telephone system according to claim 4 wherein said terminating means is provided at said radio telephone set for turning off a radio set of said radio telephone set in response to the output of said detecting means.
Claim 7
Dependent Claim
33 words
The radio telephone system according to claim 1 wherein said detecting means comprises a first detecting means provided at said base unit, and a second detecting means provided at said radio telephone set.
Claim 8
Dependent Claim
68 words
The radio telephone system according to claim 6 wherein said terminating means comprises means provided at said base unit for turning off a radio set of said base unit in response to an output of said first detecting means, and means provided at said radio telephone set for turning off a radio set of said radio telephone set in response to an output of said second detecting means.
Claim 9
Dependent Claim
56 words
The radio telephone system according to claim 1 wherein said terminating means comprises timer means started in responses to an output signal of said detecting means for calculating a predetermined time period, and means responsive to an output of said timer means for terminating a radio channel between said radio telephone set and said base unit.
Claim 10
Dependent Claim
120 words
A radio telephone system comprising: a radio telephone set utilizing a rechargeable battery as an electric source; a base unit connected to said radio telephone set through a radio channel for exchanging voice communications by means of a speech signal between said radio telephone set and a wired telephone line; charging means provided at said base unit, for charging said battery; means for connecting said radio telephone set to said base unit so as to charge the battery of said radio telephone set; means for detecting whether or not said battery is being charged; and means for terminating said radio channel between said radio telephone set and said base unit in response to an output signal of said detecting means.
Claim 11
Dependent Claim
120 words
A radio telephone system comprising: a radio telephone set utilizing a rechargeable battery as an electric source; a base unit connected to said radio telephone set through a radio channel for exchanging voice communications by means of a speech signal between said radio telephone set and a wired telephone line; charging means provided at said base unit, for charging said battery; means for connecting said radio telephone set to said base unit so as to charge the battery of said radio telephone set; means for detecting whether or not said battery is being charged; and means for terminating said radio channel between said radio telephone set and said base unit in response to an output signal of said detecting means.
Claim 12
Dependent Claim
18 words
The radio telephone system according to claim 9 wherein said detecting means is provided at said base unit.
Claim 13
Dependent Claim
64 words
The radio telephone system according to claim 10 wherein said terminating means is provided at said base unit for turning off a radio set of said base unit in response to an output signal of said detecting means, and means provided at said radio telephone set for turning off a radio set of said radio telephone set when there is no received electric wave.
Claim 14
Dependent Claim
135 words
The radio telephone system according to claim 9 wherein said terminating means comprises first timer means provided at said base unit and started in response to an output signal of said detecting means for calculating a definite time period; means for turning off a radio set of said base unit in response to an output of said first timer means, received electric field detecting means provided at said radio telephone set for detecting the fact that there is no received electric field, second timer means provide at said radio telephone set and started in response to an output signal of said received electric wave detecting means for calculating a definite time period, and means responsive to an output signal of said second timer means for turning off a radio set of said radio telephone set.
Claim 15
Dependent Claim
31 words
The radio telephone system according to claim 9 wherein said detecting means comprises first detecting means provided at said base unit, and second detecting means provided at said radio telephone set.
Claim 16
Dependent Claim
70 words
The radio telephone system according to claim 13 wherein said terminating means comprises means provided at said base unit for turning off a radio set of said base unit in response to an output signal of said first detecting means, and means provided at said radio telephone set for turning off a radio set of said radio telephone set in response to an output signal of said second detecting means.
Claim 17
Dependent Claim
110 words
A radio telephone system comprising: a radio telephone set utilizing a rechargeable battery as an electric source; a base unit connected to said radio telephone set through a radio channel for exchanging a speech signal between said radio telephone set and a wired telephone set; charging means provided separately from said base unit, for charging said battery; means for connecting said radio telephone set to said charging means so as to charge said battery; means for detecting whether or not said battery is being charged; and means repsonsive to an output signal of said detecting means for terminating said radio channel between said base unit and said radio telephone set.
Claim 18
Dependent Claim
110 words
A radio telephone system comprising: a radio telephone set utilizing a rechargeable battery as an electric source; a base unit connected to said radio telephone set through a radio channel for exchanging a speech signal between said radio telephone set and a wired telephone set; charging means provided separately from said base unit, for charging said battery; means for connecting said radio telephone set to said charging means so as to charge said battery; means for detecting whether or not said battery is being charged; and means repsonsive to an output signal of said detecting means for terminating said radio channel between said base unit and said radio telephone set.
Claim 19
Dependent Claim
19 words
The radio telephone system according to claim 15 wherein said detecting means is provided at said radio telephone set.
Claim 20
Dependent Claim
40 words
The radio telephone system according to claim 15 wherein said terminating means is provided at said radio telephone set to turn off a radio set of said radio telephone set in response to an output signal of said detecting means.
Claim 21
Dependent Claim
61 words
The radio telephone system according to claim 15 wherein said terminating means comprises timer means provided at said radio telephone set and started in response to an output signal of said detecting means for calculating a definite time period, and means for turning off a radio set of said radio telephone set in response to an output of said timer means.
Claim 22
Independent Claim
106 words
A method for controlling a radio telephone system including a radio telephone set utilizing a rechargeable battery as an electric source and a base unit connected to said radio telephone set through a radio channel for exchanging voice communications by means of a speech signal between said radio telephone set and a wired telephone line, said radio telephone set being connected to said base unit so as to charge said battery, said method comprising the steps of: detecting charged state of said battery; and terminating said radio channel between said radio telephone set and said base unit responsive to an output signal of said detecting step.
Claim 23
Independent Claim
106 words
A method for controlling a radio telephone system including a radio telephone set utilizing a rechargeable battery as an electric source and a base unit connected to said radio telephone set through a radio channel for exchanging voice communications by means of a speech signal between said radio telephone set and a wired telephone line, said radio telephone set being connected to said base unit so as to charge said battery, said method comprising the steps of: detecting charged state of said battery; and terminating said radio channel between said radio telephone set and said base unit responsive to an output signal of said detecting step.
Claim 24
Dependent Claim
43 words
The method according to claim 19 wherein said terminating step is for terminating a radio channel between said radio telephone set and said base unit upon elapse of a predetermined time after said detecting step detects that the battery is in charged state.
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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) | 1991-02-15 | 1991-08-17 | 1992-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-15 | 1995-08-17 | 1996-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-15 | 1999-08-17 | 2000-02-16 | $7700.00 | Window Closed / Lapsed |