The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 22, 1999
Filed:
May. 13, 1997
Pioneer Electronic Corporation, Saitama-ken, JP;
Abstract
A band-division signal processing system includes a coding unit and a decoding unit. The coding unit includes: an extracting unit for extracting a part of an original signal to produce a partial band signal; a first quantizer for quantizing the partial band signal to produce a quantized partial band signal; a subtracter for subtracting the quantized partial band signal from the original signal to produce a differential signal; and a first output unit for outputting the partial band signal and the differential signal. The decoding unit includes: a second quantizer having an identical configuration to the first quantizer and for quantizing the partial band signal outputted from the first output unit to produce the quantized partial band signal; an adder for adding the quantized partial band signal produced by the second quantizer to the differential signal outputted from the first output unit to produce the original signal; and a second output unit for outputting the original signal produced by the adder.