Remote control device
First Claim
1. 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.
1 Assignment
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Accused Products
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.
98 Citations
14 Claims
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1. A remote control system comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising the steps of:
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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. - View Dependent Claims (12, 13, 14)
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Specification