Voice warning system with automatic volume adjustment for an automotive vehicle
First Claim
1. A voice warning system for an automotive vehicle, which comprises:
- (a) a plurality of information switches;
(b) a multiplexer for selectively outputting one of various signals indicating vehicle operating conditions when one of said switches is actuated;
(c) a voice output selector for outputting a voice output designation signal Ds in accordance with the signal from said multiplexer;
(d) a voice memory for storing a number of voice outputs and for outputting a series of voice signals Vs in response to the voice output designation signal Ds from said voice output selector;
(e) an electronic volume controller for controlling the level of voice signals Vs outputted from said voice memory; and
(f) a voice volume selector for selectively outputting different voltage signals Cv to said electronic volume controller, by using a potential divider including a plurality of resistors, when one of said information switches is turned on,whereby the voice is automatically changed according to the kind of information warning of various vehicle operating conditions.
1 Assignment
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Accused Products
Abstract
A voice warning system for an automotive vehicle automatically adjusts voice volume in accordance with the urgency or importance of a vocal warning concerning engine operating conditions, and with car radio volume as selected by the vehicle user. A plurality of sensors output signals in response to abnormal engine or vehicle conditions. A volume memory recognizes and stores the current volume setting of the car radio. A voice volume selector produces a voice volume signal according to the volume memory value, and according to which sensor signal is received. An electronic volume controller responds to the voice volume signal to set the volume of a voice warning signal selected by a voice output selector in response to the received sensor signal.
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Citations
8 Claims
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1. A voice warning system for an automotive vehicle, which comprises:
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(a) a plurality of information switches; (b) a multiplexer for selectively outputting one of various signals indicating vehicle operating conditions when one of said switches is actuated; (c) a voice output selector for outputting a voice output designation signal Ds in accordance with the signal from said multiplexer; (d) a voice memory for storing a number of voice outputs and for outputting a series of voice signals Vs in response to the voice output designation signal Ds from said voice output selector; (e) an electronic volume controller for controlling the level of voice signals Vs outputted from said voice memory; and (f) a voice volume selector for selectively outputting different voltage signals Cv to said electronic volume controller, by using a potential divider including a plurality of resistors, when one of said information switches is turned on, whereby the voice is automatically changed according to the kind of information warning of various vehicle operating conditions. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A voice warning system for an automotive vehicle, which comprises;
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(a) a keyboard for previously selecting various signals indicating vehicle operating conditions; (b) an interface for inputting and outputting the various signals selected by said keyboard; (c) an LPC type voice synthesizer system comprising; (1) a voice synthesizer having a first sound source oscillator for generating pseudo-random noise signals, a second sound source oscillator for generating periodic impulse signals, a grid-type filter of vocal tract model, and a D-A converter for converting a digital voice signal to an analog voice signal, Vs, (2) a memory unit (ROM) for storing voices synthesized by said voice synthesizer; (3) a control unit comprising a microcomputer for controlling input/output of the various signals through said interface and for producing different items of voice information through said synthesizer; (d) an electronic volume controller for controlling the level of voice signal Vs outputted from said synthesizer according to a voice volume control signal Cv sent from said control unit through said interface; and (e) a manually variable resistor for adjusting the sound volume of the car radio, the resistance of which is transmitted to said control unit through said interface in order to control the voice volume of warning information according to the sound volume value as set by driver preference. - View Dependent Claims (8)
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Specification