Differential coding circuit

A differential coding circuit including a subtractor (7,8). a quantizer (3) for quantizing a differential signal (D) from the subtractor (1), and a predicted signal generating circuit (4,5,6) for generating a predicted signal on the basis of a quantized differential signal from the quantizer (3). Th...

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Bibliographische Detailangaben
Hauptverfasser:	IKEZAWA, TOSHI, GAMBE, HIROHISA, MATSUDA, KIICHI SHIBUE-SO 7, TSUDA, TOSHITAKA 3-304, MINAMINOMACHI, MAKI, SHINICHI MOEGINO HAITSU 105, OKAZAKI, TAKESHI, FUKUI, HIROKAZU
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CALCULATING CODE CONVERSION IN GENERAL CODING COMPUTING COUNTING DECODING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY IMAGE DATA PROCESSING OR GENERATION, IN GENERAL PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:	A differential coding circuit including a subtractor (7,8). a quantizer (3) for quantizing a differential signal (D) from the subtractor (1), and a predicted signal generating circuit (4,5,6) for generating a predicted signal on the basis of a quantized differential signal from the quantizer (3). The subtractor (7,8) subtracts the quantized differential signal of the quantizer (3) and the predicted signal from the sampled input signal (A). The critical path of the circuit is shortened, therefore the operation speed of the differential coding circuit increases.