Remote key entry system
First Claim
1. A remote key entry system comprising:
- a key unit for transmitting a radio signal for remote-controlled locking and unlocking of a vehicle;
an answerback sound producing device for receiving the key signal to indicate completion of correct locking or unlocking of the vehicle;
an environmental data sensing device for obtaining data of an environment around the vehicle to control the answerback sound;
an answerback sound control device for controlling sound volume of the answerback sound based on the environment data; and
a device for selectively setting the sound volume to one of at least three volume settings including zero, a given value other than zero, and a variable value determined based on the environmental data.
2 Assignments
0 Petitions
Accused Products
Abstract
A remote key entry system has a key unit and an answerback sound producing device. The key unit transmits a radio signal for remote-controlled locking and unlocking of a vehicle. The answerback sound producing device receives the key signal to indicate completion of correct locking or unlocking of the vehicle. The remote key entry system includes an environmental data sensing devices for obtaining data of an environment around the vehicle for control of the answerback sound. The system also has an answerback sound control device for controlling at least one of sound volume and tone of the answerback sound based on the environment data. The environmental data sensing device is an illumination sensing device for detecting environmental illuminance around the vehicle. The answerback sound control device varies the sound volume proportional to the illuminance. The environmental data sensing device may be a location calculating device for knowing location of the vehicle, and the answerback sound control device varies the sound volume based on the location of the vehicle.
-
Citations
7 Claims
-
1. A remote key entry system comprising:
-
a key unit for transmitting a radio signal for remote-controlled locking and unlocking of a vehicle; an answerback sound producing device for receiving the key signal to indicate completion of correct locking or unlocking of the vehicle; an environmental data sensing device for obtaining data of an environment around the vehicle to control the answerback sound; an answerback sound control device for controlling sound volume of the answerback sound based on the environment data; and a device for selectively setting the sound volume to one of at least three volume settings including zero, a given value other than zero, and a variable value determined based on the environmental data. - View Dependent Claims (2, 3, 4, 6, 7)
-
-
5. A remote key entry system comprising:
-
a key unit for transmitting a radio signal for remote controlled locking and unlocking of a vehicle; an answerback sound producing device for receiving the key signal to indicate completion of correct locking or unlocking of the vehicle; an environmental data sensing device for obtaining data of an environment around the vehicle to control the answerback sound; and an answerback sound control device for controlling tone of the answerback sound based on the environment data.
-
Specification
-
- Resources
-
Current AssigneeYazaki Corporation
-
Original AssigneeYazaki Corporation
-
InventorsMasui, Hideaki
-
Primary Examiner(s)La; Anh V.
-
Application NumberUS10/843,417Publication NumberTime in Patent Office993 DaysField of Search340/426.23, 340/426.17, 340/426.22, 340/502, 340/425.5, 340/692, 307/10.7, 307/173, 307/287US Class Current340/692CPC Class CodesB60R 25/00 Fittings or systems for pre...B60R 25/2009 Antitheft state indicatorG07C 2009/00793 by Hertzian wavesG07C 2209/62 Comprising means for indica...G07C 9/00182 operated with unidirectiona...
