Keyless command system for vehicles and other applications
DCFirst Claim
1. A command-entry system including a wireless, remote-control device adapted for use with an existing receiver programmed to recognize encoded command signals from an existing portable transmitter, the device comprising:
- a keypad for entering a command;
a transmitter for transmitting one of the same encoded command signals recognizable by the existing receiver in response to the command entered through the keypad; and
user authorization means operative to cause the transmitter to output the encoded command signal in response to a keypad entry only in conjunction with the receipt of an identification code.
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Abstract
A wireless remote-control transmitter includes means for entering an identification code so that only an authorized operator can use the device. Use as a keyless entry system provides the owner of a wireless receiver with an additional keypad-operated transmitter which may be vehicle mounted to perform some or all of the same functions as those available through an existing remote. In this embodiment, the keypad may be mounted behind a small section of the vehicle'"'"'s window glass, with command inputs being sensed using electrical, magnetic, or optical detection techniques. To save on battery power, the system automatically powers down during periods of non-use, with some form of wake-up signal being used to enter operational modes requiring increased power consumption. The transmitter may also be mounted in the trunk, preferably with an illuminated or glow-in-the-dark trunk unlock button and without the need for entry of an authorization code, thereby enabling a child, for example, to unlock the trunk from within without having to hardwire the car for this capability.
172 Citations
18 Claims
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1. A command-entry system including a wireless, remote-control device adapted for use with an existing receiver programmed to recognize encoded command signals from an existing portable transmitter, the device comprising:
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a keypad for entering a command; a transmitter for transmitting one of the same encoded command signals recognizable by the existing receiver in response to the command entered through the keypad; and user authorization means operative to cause the transmitter to output the encoded command signal in response to a keypad entry only in conjunction with the receipt of an identification code. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A keyless command entry system adapted for use with a vehicle having a wireless encoded command signal receiver, the system comprising:
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a transmitter module including a keypad and a wireless signal transmitter operative to transmit a wireless encoded command signal following a keypad input which is identical to the wireless encoded command signal to which the receiver is responsive; and an input for receiving a user authorization code prior to the transmission of the wireless encoded command signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification