Abstract: Another method of mixing at least two gases is provided. This method includes providing a mixture composition control, comprising a predetermined composition input and a composition trim input. Providing N gas flow meters, wherein N is 3 or more. Configuring the N flow meters to adjust the N gas flows to maintain the line pressure at a predetermined value, while maintaining the predetermined composition. Adding the N measured gas flow, thereby determining the total gas flow at the first predetermined intervals of time. Adjusting the composition trim input to vary the composition of the mixed gas, without modifying the predetermined composition input. And sounding an alarm, and/or terminating both the N gas flows, if either of the following exceed a predetermined range value: the instantaneous calculated theoretical percentage for any of the N gas flows, or the cumulative calculated theoretical percentage for any of the N gas flows.

Abstract: A method of mixing at N gases is provided. This method includes providing N gas flow meters, including N gas flows, wherein N is 3 or more. Measuring each of the N gas flows, at first predetermined intervals of time, and totaling each of the measured N flows over a second predetermined interval of time. Adding the N measured gas flows, thereby determining the total gas flow at the second predetermined interval of time. Dividing the total gas flow for each of the N gas flows by the total gas flow, thereby determining a cumulative calculated theoretical percentage for each of the N gas flows over the second predetermined interval of time. And sounding an alarm, and/or terminating the N gas flows, if the cumulative calculated theoretical percentage for any of the N gas flows exceeds a predetermined range value.

Abstract: A method of mixing at least two gases is provided. This method includes providing a mixture composition control, including a predetermined composition input and a composition trim input. Providing N gas flow meters, including a N gas flows, and N desired gas flow rates determined by the mixture composition control, wherein N is 3 or more. Mixing the N gas flows, thereby producing a mixed gas flow at the predetermined composition and at a line pressure. Configuring the N flow meters to adjust the N gas flows to maintain the line pressure at a predetermined value, while maintaining the predetermined composition. And adjusting the composition trim input to vary the composition of the mixed gas, without modifying the predetermined composition input.

Abstract: Another method of mixing at least two gases is provided. This method includes providing a mixture composition control, comprising a predetermined composition input and a composition trim input. Providing N gas flow meters, wherein N is 3 or more. Configuring the N flow meters to adjust the N gas flows to maintain the line pressure at a predetermined value, while maintaining the predetermined composition. Adding the N measured gas flow, thereby determining the total gas flow at the first predetermined intervals of time. Adjusting the composition trim input to vary the composition of the mixed gas, without modifying the predetermined composition input. And sounding an alarm, and/or terminating both the N gas flows, if either of the following exceed a predetermined range value: the instantaneous calculated theoretical percentage for any of the N gas flows, or the cumulative calculated theoretical percentage for any of the N gas flows.

Abstract: A method of mixing at N gases is provided. This method includes providing N gas flow meters, including N gas flows, wherein N is 3 or more. Measuring each of the N gas flows, at first predetermined intervals of time, and totaling each of the measured N flows over a second predetermined interval of time. Adding the N measured gas flows, thereby determining the total gas flow at the second predetermined interval of time. Dividing the total gas flow for each of the N gas flows by the total gas flow, thereby determining a cumulative calculated theoretical percentage for each of the N gas flows over the second predetermined interval of time. And sounding an alarm, and/or terminating the N gas flows, if the cumulative calculated theoretical percentage for any of the N gas flows exceeds a predetermined range value.

Abstract: A method of mixing at least two gases is provided. This method includes providing a mixture composition control, including a predetermined composition input and a composition trim input. Providing N gas flow meters, including a N gas flows, and N desired gas flow rates determined by the mixture composition control, wherein N is 3 or more. Mixing the N gas flows, thereby producing a mixed gas flow at the predetermined composition and at a line pressure. Configuring the N flow meters to adjust the N gas flows to maintain the line pressure at a predetermined value, while maintaining the predetermined composition. And adjusting the composition trim input to vary the composition of the mixed gas, without modifying the predetermined composition input.

Abstract: A method and apparatus for decoding baseband OFDM signals include processing that begins by slicing each sub-carrier signal of the OFDM signal into a plurality of error terms. The particular number of error terms generated for each sub-carrier signal depends on the constellation size of the data being carried by each of the sub-carrier signals. The error terms for each sub-carrier signal corresponds to the nearest constellation point having a zero or one in the I or Q direction. The process continues by grouping individual error terms of the plurality of error terms for each sub-carrier signal to produce a plurality of error terms. The processing then continues by de-interleaving each of the plurality of error term groups to produce a corresponding plurality of de-interleaved error term groups.

Abstract: A method for field error checking begins by decoding a predetermined pattern of a field of a frame to produce a decoded pattern. The method continues by determining, for the decoded pattern, a path metric distance of a predetermined state of a plurality of states of the decoding. The method continues by comparing the path metric distance with an excepted path metric distance for the predetermined state. The method continues by indicating a field error when the path metric distance compares unfavorably with the excepted path metric distance.

Abstract: A method for receiving high data rate wireless communication transmissions begins by receiving a plurality of radio frequency (RF) signals in accordance with a wireless communication standardized data rate on a plurality of RF channels. The method continues by converting each of the plurality of RF signals into a plurality of signals. The method continues by processing the plurality of signals at baseband or near baseband into media access control (MAC) data, wherein a number of the plurality of signals corresponds to an integer multiple. The method continues by processing the MAC data at a combination of wireless communication standardized data rates to produce recovered data.

Abstract: A wireless communication device capable of receiving data using non-standard data includes a receiver section, a demodulation mapping module, a decoding module, and a rate determination module. The receiver section is operably coupled to convert a radio frequency signal into a digital signal. The demodulation mapping module is operably coupled to demodulate the digital signal to produce demodulated data. The decoding module is operably coupled to decode the demodulated data based on the coding rate to produce decoded data. The rate determination module is operably coupled to determine the coding rate from at least one of the digital signal and the demodulated data, wherein the coding rate is one of a plurality of standard coding rates or a non-standard coding rate that is selected for a given transmission.

Abstract: A method and apparatus for establishing a non-standard data rate in a wireless communication system include processing that begins by establishing a standard specified data rate for a given transmission. The processing then continues by determining whether the data rate of the transmission can be adjusted from the standard specified data rate by a non-standard data rate adjustment. The processing then continues when the data rate can be adjusted, adjusting the data rate to a non-standard data rate for the given data transmission.

Abstract: A wireless communication device capable of receiving data using non-standard data includes a receiver section, a demodulation mapping module, a decoding module, and a rate determination module. The receiver section is operably coupled to convert a radio frequency signal into a digital signal. The demodulation mapping module is operably coupled to demodulate the digital signal to produce demodulated data. The decoding module is operably coupled to decode the demodulated data based on the coding rate to produce decoded data. The rate determination module is operably coupled to determine the coding rate from at least one of the digital signal and the demodulated data, wherein the coding rate is one of a plurality of standard coding rates or a non-standard coding rate that is selected for a given transmission.

Abstract: A method and apparatus for decoding baseband OFDM signals include processing that begins by slicing each sub-carrier signal of the OFDM signal into a plurality of error terms. The particular number of error terms generated for each sub-carrier signal depends on the constellation size of the data being carried by each of the sub-carrier signals. The error terms for each sub-carrier signal corresponds to the nearest constellation point having a zero or one in the I or Q direction. The process continues by grouping individual error terms of the plurality of error terms for each sub-carrier signal to produce a plurality of error terms. The processing then continues by de-interleaving each of the plurality of error term groups to produce a corresponding plurality of de-interleaved error term groups.