Abstract: A pellet barbecue configured to recirculate exhaust gas, allowing for the reduction of oxygen in the cooking chamber. The pellet barbecue is configured with an exhaust gas recirculation system, and an angled bottom fire pot. The electric gas recirculation fan pulls gases from a gas recirculation channel, and blows it onto the angled bottom fire pot. The gas recirculation channel is equipped with a movable mixer flap to control how much of the gas pulled by the gas recirculation fan is exhaust gas or outside air. The pellet barbecue controller monitors the conditions in the cooking chamber, and controls the gas recirculation fan speed and positioning of the mixer flap to maintain a desired temperature, while optimizing the concentration of wood taste compounds from the pellets in the cooking chamber.

Abstract: A pellet barbecue configured to recirculate exhaust gas, allowing for the reduction of oxygen in the cooking chamber. The pellet barbecue is configured with an exhaust gas recirculation system, and an angled bottom fire pot. The electric gas recirculation fan pulls gases from a gas recirculation channel, and blows it onto the angled bottom fire pot. The gas recirculation channel is equipped with a movable mixer flap to control how much of the gas pulled by the gas recirculation fan is exhaust gas or outside air. The pellet barbecue controller monitors the conditions in the cooking chamber, and controls the gas recirculation fan speed and positioning of the mixer flap to maintain a desired temperature, while optimizing the concentration of wood taste compounds from the pellets in the cooking chamber.

Abstract: A grill box insert and grill insert controller for attaching to a pellet barbecue. The grill box insert has an open top, and an opening on the bottom for placement directly over a pellet barbecue's fire pot. The grill box insert has within it, a burn plate, upon which charcoal is placed. A cooking grate temperature sensor may be added to detect the temperature near the charcoal and grill box insert burn plate. The grill insert controller is wired such that it is capable of disrupting power to the pellet barbecue controller, directly controlling the pellet barbecue's electric combustion fan and monitoring the pellet barbecue's electrically heated igniter.

Abstract: A method for temperature analysis of a gas stream. The method includes identifying a temperature parameter of an affected waveform signal. The method also includes calculating a change in the temperature parameter by comparing the affected waveform signal with an original waveform signal. The method also includes generating a value from the calculated change which corresponds to the temperature of the gas stream.

Abstract: A device for signal processing. The device includes a signal generator, a signal detector, and a processor. The signal generator generates an original waveform. The signal detector detects an affected waveform. The processor is coupled to the signal detector. The processor receives the affected waveform from the signal detector. The processor also compares at least one portion of the affected waveform with the original waveform. The processor also determines a difference between the affected waveform and the original waveform. The processor also determines a value corresponding to a unique portion of the determined difference between the original and affected waveforms. The processor also outputs the determined value.

Abstract: A method for analysis of a gas stream. The method includes identifying an affected region of an affected waveform signal corresponding to at least one characteristic of the gas stream. The method also includes calculating a voltage-current time differential between the affected region of the affected waveform signal and a corresponding region of an original waveform signal. The affected region and the corresponding region of the waveform signals have a sensitivity specific to the at least one characteristic of the gas stream. The method also includes generating a value for the at least one characteristic of the gas stream based on the calculated voltage-current time differential.

Abstract: A device for signal processing. The device includes a signal generator, a signal detector, and a processor. The signal generator generates an original waveform. The signal detector detects an affected waveform. The processor is coupled to the signal detector. The processor receives the affected waveform from the signal detector. The processor also compares at least one portion of the affected waveform with the original waveform. The processor also determines a difference between the affected waveform and the original waveform. The processor also determines a value corresponding to a unique portion of the determined difference between the original and affected waveforms. The processor also outputs the determined value.

Abstract: A device for signal processing. The device includes a signal generator, a signal detector, and a processor. The signal generator generates an original waveform. The signal detector detects an affected waveform. The processor is coupled to the signal detector. The processor receives the affected waveform from the signal detector. The processor also compares at least one portion of the affected waveform with the original waveform. The processor also determines a difference between the affected waveform and the original waveform. The processor also determines a value corresponding to a unique portion of the determined difference between the original and affected waveforms. The processor also outputs the determined value.

Abstract: A method for analysis of a gas stream. The method includes identifying an affected region of an affected waveform signal corresponding to at least one characteristic of the gas stream. The method also includes calculating a voltage-current time differential between the affected region of the affected waveform signal and a corresponding region of an original waveform signal. The affected region and the corresponding region of the waveform signals have a sensitivity specific to the at least one characteristic of the gas stream. The method also includes generating a value for the at least one characteristic of the gas stream based on the calculated voltage-current time differential.

Abstract: A device for signal processing. The device includes a signal generator, a signal detector, and a processor. The signal generator generates an original waveform. The signal detector detects an affected waveform. The processor is coupled to the signal detector. The processor receives the affected waveform from the signal detector. The processor also compares at least one portion of the affected waveform with the original waveform. The processor also determines a difference between the affected waveform and the original waveform. The processor also determines a value corresponding to a unique portion of the determined difference between the original and affected waveforms. The processor also outputs the determined value.

Abstract: A device for signal processing. The device includes a signal generator, a signal detector, and a processor. The signal generator generates an original waveform. The signal detector detects an affected waveform. The processor is coupled to the signal detector. The processor receives the affected waveform from the signal detector. The processor also compares at least one portion of the affected waveform with the original waveform. The processor also determines a difference between the affected waveform and the original waveform. The processor also determines a value corresponding to a unique portion of the determined difference between the original and affected waveforms. The processor also outputs the determined value.