A measuring device includes a measuring platform, a length measuring mechanism, a width measuring mechanism, a segment difference measuring mechanism, and a controller. A plurality of variable-length coding units respectively encode the output of the prediction error generating unit with different encoding methods. At least one tube connects the off-axis ink supply container to the printhead assembly. The client device may determine whether the continuous data stream includes media content, and based on the determination, continuously perform the content identification of content in the data stream at the client device. The reactive dyestuff of the present invention is suitable for exhaust dyeing, cold batch-up dyeing, continuous dyeing, printing and digital spray printing materials that contain hydroxyl group or amino group fibers. A sound source signal corrector adds or replaces the pitch pulse waveform convoluted into the time axis to the lost flame decoded sound source signal.