Process and device for limiting the speed of a motor vehicle
First Claim
1. An apparatus for limiting a speed of an automobile, comprising:
- a sound recorder configured to receive a voice signal and to digitize the voice signal;
a signal generator configured to receive a speed signal indicative of a current speed of the automobile and to output a digitized speed signal;
a signal memory configured to store the digitized voice signal and the digitized speed signal as a pair of signals when an enable signal is received;
a memory key configured to provide the enable signal to the signal memory, the enable signal being provided when a user operates the memory key;
a first comparator configured to receive the digitized voice signal output from the sound recorder at a first input thereof and a stored digitized voice signal output from the signal memory at a second input thereof, the first comparator configured to compare the digitized voice signal and the stored digitized voice signal and to output a coincidence signal as a result of the comparison;
a second comparator configured to receive the digitized speed signal output from the signal generator at a first input there and a stored digitized speed signal output from the signal memory at a second input thereof, the second comparator configured to compare the digitized speed signal and the stored digitized speed signal and to output a difference signal as a result of the comparison;
a controller configured to receive the coincidence signal and the difference signal, and to output the difference signal as an actuating signal when the coincidence signal indicates coincidence between the digitized voice signal and the stored digitized voice signal; and
a regulator configured to receive the actuating signal and to regulate operation of an engine of the automobile based on the actuating signal,wherein the actuating signal regulates the engine of the automobile when the difference signal indicates that the digitized speed signal is greater than the stored digitized speed signal.
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Accused Products
Abstract
An apparatus and method for limiting a vehicle speed based on voice inputs includes a sound recorder that receives a voice input. A first signal generator receives a vehicle speed sensor value, and outputs a vehicle speed signal. A signal memory receives the signals provided by the sound recorder and the first signal generator, and stores them as a pair of values upon receiving a store signal from a memory key. A first comparator compares the stored voice signal with a current voice signal output by the sound recorder, compares them, and outputs a coincidence signal based on the comparison. A second comparator compares the stored speed signal and a current speed signal received provided by the first signal generator, compares them, and outputs a difference signal. Based on the coincidence signal and the difference signal, the vehicle'"'"'s speed is regulated so as not to exceed the stored speed signal.
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Citations
20 Claims
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1. An apparatus for limiting a speed of an automobile, comprising:
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a sound recorder configured to receive a voice signal and to digitize the voice signal; a signal generator configured to receive a speed signal indicative of a current speed of the automobile and to output a digitized speed signal; a signal memory configured to store the digitized voice signal and the digitized speed signal as a pair of signals when an enable signal is received; a memory key configured to provide the enable signal to the signal memory, the enable signal being provided when a user operates the memory key; a first comparator configured to receive the digitized voice signal output from the sound recorder at a first input thereof and a stored digitized voice signal output from the signal memory at a second input thereof, the first comparator configured to compare the digitized voice signal and the stored digitized voice signal and to output a coincidence signal as a result of the comparison; a second comparator configured to receive the digitized speed signal output from the signal generator at a first input there and a stored digitized speed signal output from the signal memory at a second input thereof, the second comparator configured to compare the digitized speed signal and the stored digitized speed signal and to output a difference signal as a result of the comparison; a controller configured to receive the coincidence signal and the difference signal, and to output the difference signal as an actuating signal when the coincidence signal indicates coincidence between the digitized voice signal and the stored digitized voice signal; and a regulator configured to receive the actuating signal and to regulate operation of an engine of the automobile based on the actuating signal, wherein the actuating signal regulates the engine of the automobile when the difference signal indicates that the digitized speed signal is greater than the stored digitized speed signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An apparatus for limiting a speed of an automobile, comprising:
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a sound recorder configured to receive a voice signal and to digitize the voice signal; a signal generator configured to receive a speed signal indicative of a current speed of the automobile and to output a digitized speed signal; a signal memory configured to store the digitized voice signal and the digitized speed signal as a pair of signals when an enable signal is received; a memory key configured to provide the enable signal to the signal memory, the enable signal being provided when a user operates the memory key; a first comparator configured to receive the digitized voice signal output from the sound recorder at a first input thereof and a stored digitized voice signal output from the signal memory at a second input thereof, the first comparator configured to compare the digitized voice signal and the stored digitized voice signal and to output a coincidence signal as a result of the comparison; a reception device configured to receive a speed limit signal that is received over-the-air; an evaluation circuit configured to receive the speed limit signal from the reception device, to evaluate the speed limit signal, and to output an evaluated speed limit signal as a result; a precedence circuit configured to receive a stored digitized speed signal output from the signal memory at a first input thereof and the evaluated speed limit signal at a second input thereof, and to provide a precedence function in which, when both the evaluated speed limit signal and the stored digitized speed signal are received at the same time, only the evaluated speed limit signal is output, and when only the stored digitized speed signal is received, the stored digitized speed signal is output; a second comparator configured to receive the digitized speed signal output from the signal generator at a first input there and the output of the precedence circuit at a second input thereof, the second comparator configured to perform a comparison of the signals at the first and second inputs and to output a difference signal as a result of the comparison; a controller configured to receive the coincidence signal and the difference signal, and to output the difference signal as an actuating signal when the coincidence signal indicates coincidence between the digitized voice signal and the stored digitized voice signal; and a regulator configured to receive the actuating signal and to regulate operation of an engine of the automobile based on the actuating signal, wherein the actuating signal regulates the engine of the automobile when the difference signal indicates that the digitized speed signal is greater than the other signal being compared by the second comparator.
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18. A method for limiting a speed of an automobile, comprising:
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a) operating a memory storage key while at a same time uttering a first voice signal indicative of a current speed of the automobile; b) converting the first voice signal into a first electronic signal; c) determining a current speed of the automobile at a same time as the step a); d) converting the current speed of the automobile into a second electronic signal; e) storing the first electronic signal and a second electronic signal as a signal pair in a memory; f) uttering a second voice signal indicative of a desired speed of the automobile while not operating the memory storage key; g) converting the second voice signal into a third electronic signal; h) comparing the third electronic with all signals currently stored in the memory, and if there is a match, outputting a coincidence signal on a first output port and a corresponding speed signal on a second output port; i) comparing the corresponding speed signal with a current speed of the automobile that is provided at a same time as the step g), and outputting a difference signal as a result; and j) regulating a speed of the automobile based on the difference signal and the coincidence signal. - View Dependent Claims (19, 20)
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Specification