Provided are a process for producing a phosphate and a process for stabilizing a phosphate, the phosphate being an acid-form phosphate wherein an organic hydroxy compound is an alkylene oxide adduct. The system includes a first state observer processor that employs a bicycle model with state feedback for generating yaw acceleration and lateral acceleration signals. A reference plane defined by the first end of the measurement pin is measured. A foregroundbackground separation unit performs a task of determining using the background model whether reference pixels among all pixels of the input image belong to a foreground or a background, and performs a task of estimating, based on results of the foregroundbackground determination task, whether remaining pixels other than the reference pixels belong to the foreground or the background. The system also includes a third circuit configured to generate a first pulse signal and a second pulse signal in response to the first set of encoded signals and the second set of encoded signals, and a fourth circuit configured to generate a second clock signal in response to the first pulse signal and the second pulse signal.