US5379033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote control device
Assignee: Alps Alpine Co Ltd
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Filing: 1992-07-28
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Granted: 1995-01-03
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Expires: 2012-07-28
Abstract
Abstract A remote control device is designed such that it enables an object to be remotely controlled to execute an operation only by the user approaching the object to be remotely controlled. When the user who carries the transmitter 1 depresses an operation button A at a position distant from an automobile 2, the transmitter intermittently transmits a signal containing identification information and command information corresponding to the operation button A. As the user comes closer to the automobile 2 and enters an automatic operation area, the reception level of a receiver 3 exceeds a predetermined value, and the transmission signal is thereby received. The identification information and the command information of the reception signal are decoded, and an operation corresponding to the command information, e.g., door unlocking, is executed by an execution portion 4.
Inventors
- 👤 Shohei Fujii
- 👤 Katsumi Suitsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:37
CPC Classifications
G; G08; G08C; G08C17/00; G07; G07C; G07C9/00; G07C9/00174; G07C9/00182; G07C2009/00198; G07C2009/00753; G07C2009/00769; G07C2009/00793; G07C2209/00; G07C2209/60; G07C2209/63
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
152 words
A remote control system comprising: a transmitter for transmitting a signal containing identification information and command information, the command information corresponding to a selected one of a plurality of commands, said transmitter having at least two operation modes including a first operation mode wherein the transmitter transmits the signal intermittently at a first level, and a second operation mode wherein the transmitter transmits the signal continuously at a second level which is higher than the first level; a receiver for receiving the signal transmitted from said transmitter, for generating a received signal containing the identification information and command information of the transmitted signal, and for decoding the identification information and the command information contained in the received signal when a level of the received signal is higher than a predetermined value, and for executing a selected command specified by the command information if the decoded identification information coincides with stored identification information.
Claim 2
Dependent Claim
152 words
A remote control system comprising: a transmitter for transmitting a signal containing identification information and command information, the command information corresponding to a selected one of a plurality of commands, said transmitter having at least two operation modes including a first operation mode wherein the transmitter transmits the signal intermittently at a first level, and a second operation mode wherein the transmitter transmits the signal continuously at a second level which is higher than the first level; a receiver for receiving the signal transmitted from said transmitter, for generating a received signal containing the identification information and command information of the transmitted signal, and for decoding the identification information and the command information contained in the received signal when a level of the received signal is higher than a predetermined value, and for executing a selected command specified by the command information if the decoded identification information coincides with stored identification information.
Claim 3
Dependent Claim
40 words
A remote control system of claim 1 wherein the receiver further comprises a monitor circuit for monitoring the level of the received signal and for causing the receiver to reverse the command when the level falls below the predetermined value.
Claim 4
Dependent Claim
49 words
A remote control system of claim 1 wherein the receiver further comprises: a monitor circuit for monitoring the level of the received signal; and a control section for decoding the identification information and command information contained in the received signal when the level is higher than a predetermined value.
Claim 5
Dependent Claim
21 words
A remote control system of claim 2 wherein the level of the received signal is limited to a second predetermined value.
Claim 6
Dependent Claim
15 words
A remote control system of claim 4 wherein the command is to unlock a door.
Claim 7
Dependent Claim
21 words
A remote control system of claim 1 wherein the transmitter comprises a plurality of operation buttons for selecting the operation mode.
Claim 8
Dependent Claim
20 words
A remote control system of claim 1 wherein the transmitter comprises a plurality of operation buttons for selecting command information.
Claim 9
Dependent Claim
36 words
A remote control system of claim 1 wherein the transmitter, in the first operation mode, intermittently transmits a plurality of signals in an alternating manner, each signal containing command information corresponding to a different selected command.
Claim 10
Dependent Claim
46 words
A remote control system of claim 8 wherein the transmitter, in the first operation mode, intermittently transmits a first signal containing command information corresponding to a command for unlocking a door and a second signal containing command information corresponding to a command for unlocking a trunk.
Claim 11
Dependent Claim
30 words
A remote control system of claim 1 wherein the transmitter includes means for varying the duration of transmission of the signal when the transmitter is in the first operation mode.
Claim 12
Independent Claim
152 words
A method comprising the steps of: transmitting a signal in one of at least two operation modes including a first operation mode wherein the transmitter transmits the signal intermittently at a first level, and a second operation mode wherein the transmitter transmits the signal continuously at a second level which is higher than the first level, said signal containing identification information and command information, the command information corresponding to a selected one of a plurality of commands; receiving the signal transmitted from said transmitter; generating a received signal containing the identification information and command information of the transmitted signal, determining a level of the received signal; decoding the identification information and the command information contained in the received signal when a level of the received signal is higher than a predetermined value; and executing a selected command specified by the command information if the decoded identification information coincides with stored identification information.
Claim 13
Independent Claim
152 words
A method comprising the steps of: transmitting a signal in one of at least two operation modes including a first operation mode wherein the transmitter transmits the signal intermittently at a first level, and a second operation mode wherein the transmitter transmits the signal continuously at a second level which is higher than the first level, said signal containing identification information and command information, the command information corresponding to a selected one of a plurality of commands; receiving the signal transmitted from said transmitter; generating a received signal containing the identification information and command information of the transmitted signal, determining a level of the received signal; decoding the identification information and the command information contained in the received signal when a level of the received signal is higher than a predetermined value; and executing a selected command specified by the command information if the decoded identification information coincides with stored identification information.
Claim 14
Dependent Claim
33 words
A method of claim 11 further comprising the steps of: monitoring the level of the received signal; and reversing the command if the level of the received signal falls below the predetermined value.
Claim 15
Dependent Claim
32 words
A method of claim 11 comprising intermittently transmitting, in the first operation mode, a plurality of signals in an alternating manner, each signal containing command information corresponding to a different selected command.
Claim 16
Dependent Claim
42 words
A method of claim 13 comprising intermittently transmitting, in the first operation mode, a first signal containing command information corresponding to a command for unlocking a door and a second signal containing command information corresponding to a command for unlocking a trunk.
References Cited (Backward Citations)
US3725939A
Cited
US4980681A
Cited
US4763121A
Cited
US4669352A
Cited
US4987406A
Cited
US5109221A
Cited
US5157389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-01-02 | 1998-07-04 | 1999-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-02 | 2002-07-04 | 2003-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-02 | 2006-07-04 | 2007-01-03 | $7700.00 | Window Closed / Lapsed |