Abstract: The invention relates to a method, systems, computer program, and computer-readable medium for reducing artefacts (speckling) which may appear to be noise/errors in a representation of an electrical signal. An Eye Pattern representation of a digital bit stream signal can be used for determining a range of signal quality characteristics, and can be generated from measurements of the proportion of ones and zeroes detected when sampling the signal at both at a reference data sampling position within a bit period and at a range of offset sampling positions. However, the speckling noise which typically exists in such an Eye Pattern reduces the confidence that can be placed in values for different signal characteristics which may be determined from the Eye Pattern.

Abstract: The invention relates to a method, systems, computer program, and computer-readable medium for reducing artefacts (speckling) which may appear to be noise/errors in a representation of an electrical signal. An Eye Pattern representation of a digital bit stream signal can be used for determining a range of signal quality characteristics, and can be generated from measurements of the proportion of ones and zeroes detected when sampling the signal at both at a reference data sampling position within a bit period and at a range of offset sampling positions. However, the speckling noise which typically exists in such an Eye Pattern reduces the confidence that can be placed in values for different signal characteristics which may be determined from the Eye Pattern.

Abstract: The use of eye pattern circuitry associated with a serial receiver embedded in an integrated circuit (e.g. in an FPGA) relies on the signal quality and signal frequency being sufficient for the serial receiver to lock onto the signal: if this is not possible then it is not possible to obtain an eye pattern. Our novel invention enables the use of this embedded circuitry where the signal quality and signal frequency are not sufficient by splitting the incoming signal, then using the clock recovered with further processing from one of the split signals together with the built-in eye pattern circuitry to obtain a realistic eye pattern for the unprocessed signal, regardless of the quality of that unprocessed signal. The technique uses the free-running or ‘slave’ mode of these serial receivers in which the receiver does not lock to the incoming data. To date, this mode has been used for oversampling but not for sampling at the actual data rate with a recovered clock in order obtain eye pattern samples.

Abstract: A method is shown for producing food grade hydrated lime. A source of raw, hydrated lime is first passed through a classification step which divides the raw hydrated lime into a first fine stream and a first coarse stream. The first fine stream is passed through a further separation step and, without being recombined with the first coarse stream is separated out to form a very fine sized product which meets CODEX chemical specifications. The additional separation step may be a wet process and may utilize a hydrocyclone type separator.

Abstract: A method is shown for producing food grade hydrated lime. A source of raw, hydrated lime is first passed through a classification step which divides the raw hydrated lime into a first fine stream and a first coarse stream. The first fine stream is passed through a further separation step and, without being recombined with the first coarse stream is separated out to form a very fine sized product which meets CODEX chemical specifications. The additional separation step may be a wet process and may utilize a hydrocyclone type separator.