Everyone we spoke to in the encoder manufacturing business--and that's not many--agrees that Gray code
is on the way out.
Implementation of binary to gray code
converter and parity device has been done using electro-optic based MZIs .
Circuits of the encoder proposal consist of gray code
circuits and decoder circuits.
The interface programs through the host controller's (PLC) software, and is compatible with most gray code
or binary SSI sensors including rotary encoders, linear sensors, barcode readers, and laser distance sensors.
According to  and , the BER of MQAM with Gray code
over additive white Gaussian noise (AWGN) channel for the received SNR [rho] and constellation size [M.
A sampling of topics: digital modulation identification by wavelet analysis, fuzzy image processing in quality control application, parallel gray code
optimization for high dimensional problems, computational coronary artery bypass grafting, concept-based term weighting for web information retrieval, enhanced image/video compression using diagonal divide, the design of autonomous mobile predator and prey robots, and texture classification using ridgelet transform.
Output formats include serial, parallel, and multiplexed versions of Gray code
or natural binary.
M]) then [alpha] is called a Gray code
of length [N.
There are up to four different types of outputs available with the Temposonics line of sensors: true analog, with resolution determined by the type of customer interface; digitally-derived analog output, where digital is translated into an analog output via a D/A converter; digital pulse output, where a digital pulse in either start/stop or PWM format is available; and digital output, where output is either in SSI binary or Gray code
format, as in DeviceNet protocol.
The digital output data are presented in offset binary, Gray code
, or twos complement formats at double-data-rate low-voltage CMOS levels.
5 kHz up to 2 MHz, 8 bit to 31 bit encoder resolution, binary or gray code
and odd or even parity.
The units deliver 8 bits (256 PPR) to 12 bits (4,096 PPR) of absolute position information with a gray code
, natural binary, or BDC output.