Voice blanking muscle movement controlled systems
Systems and methods for operating a controlled device via a wearable activation accessory that includes a sensor configured to detect relaxed and flexed conditions of muscles associated with clenching, flexing, and/or lateral displacement of a wearer's muscle, thereby allowing the wearer to generate control signals for a controlled element. The sensor is coupled to a controller, which has an output coupled to a control signal interface. The controller is programmed to receive and evaluate input signals from the sensor to determine whether or not they represent a command for the controlled device by assessing the input signals for a signal pattern indicative of a plurality of volitional muscle motion actions of a wearer of the wearable activation accessory. If/when the processor determines that the input signals represent a valid command, it decodes the command and transmits an associated control signal to the controlled device via the control signal interface.
1. An activation accessory for a controlled device, comprising:
a wearable module including a sensor communicably coupled to a controller which has a first output coupled to a control signal interface and an input couped to receive signals produced by a microphone, the controller including a processor and a memory coupled to the processor and storing processor-executable instructions, which instructions when executed by the processor cause the processor to perform steps including:
receiving, from the sensor, first input signals, and receiving from the microphone second input signals,
evaluating the first and second input signals to determine whether or not the first input signals represent a command for said controlled device by assessing said second input signals to determine if they represent wearer speech and, if so, ignoring the first input signals, otherwise assessing the first input signals for a signal pattern indicative of a plurality of volitional actions of a wearer of the wearable module, and
if said processor determines that the first input signals represent the command, then decoding the command and transmitting (i) an associated control signal to the control signal interface and (ii) an activation signal to the vibration motor, otherwise not transmitting the control signal and the activation signal and proceeding to evaluate second input signals from the sensor in a like manner as the first input signals; and
a communication element coupled to the control signal interface and adapted to transmit the control signal from the processor to the controlled device.
2. The activation accessory of claim 1 , wherein the sensor is one of a Hall effect sensor, electromyography (EMG) sensor, piezo switch, tape switch, fabric switch, optical sensor, or proximity sensor.
3. The activation accessory of claim 1 , wherein the sensor is configured to detect, physically, optically, or by proximity measure, movement of a wearer's jaw.
4. The activation accessory of claim 1 , wherein the sensor is configured to detect, physically, optically, or by proximity measure, movement of a wearer's muscle.
5. The activation accessory of claim 1 , wherein the volitional actions of a wearer comprise maxillofacial movements.
6. The activation accessory of claim 1 , wherein the instructions, when executed by the processor, cause the processor to evaluate the first and second input signals to determine whether or not the first input signals represent a command for said controlled device by assessing said second input signals to determine if they represent wearer speech by employing a threshold filter to distinguish the wearer speech.
7. The activation accessory of claim 1 , wherein the instructions, when executed by the processor, cause the processor to evaluate the first and second input signals to determine whether or not the first input signals represent a command for said controlled device by assessing said second input signals to determine if they represent wearer speech by evaluating spectral content of the second input signals.
8. The activation accessory of claim 1 , wherein the instructions, when executed by the processor, cause the processor to evaluate the first and second input signals to determine whether or not the first input signals represent a command for said controlled device by assessing said second input signals to determine if they represent wearer speech by additionally detecting wearer vocal cord activation when forming the wearer speech by a second sensor associated with the activation accessory.
9. The activation accessory of claim 1 , wherein the instructions, when executed by the processor, cause the processor to execute one or more rules when the wearer speech is detected.
10. The activation accessory of claim 9 , wherein the one or more rules comprise decoding commands relayed by speech input and thereafter issuing signals to execute such commands.
11. The activation accessory of claim 9 , wherein the one or more rules comprise executing voice recognition routines so as to ensure volitional movement commands are only executed by an authorized wearer as determined through voice recognition of the wearer.