Appeal No. 1998-0496
Application 08/356,966
The disclosed invention pertains to a method and apparatus
for processing signals. The invention has particular disclosed
utility in the decoding of variable length Huffman codes for use
in performing transformations in the restoration of received
image data.
Representative claim 1 is reproduced as follows:
1. A signal processing device for processing an input
signal including a plurality of first digits and a plurality of
second digits, wherein the plurality of first digits indicate a
run length of a single first value, and wherein the plurality of
second digits include at least one second value other than said
first value, said signal processing device comprising:
(a) an address generator comprising:
(a-1) a first input for sequentially receiving a run
length indicative of a number of contiguous first values in said
input signal;
(a-2) a second input for sequentially receiving said
second digits;
(a-3) a first output for sequentially outputting a
first address updated by a value of said run length plus one; and
(a-4) a second output for sequentially outputting said
second digits in synchronism with a first address, and
(b) a signal processor for performing a predetermined signal
processing upon said first address and said second digits to
output an array of output signals.
The examiner relies on the following references:
Saito et al. (Saito) 5,184,229 Feb. 2, 1993
Fukuda et al. (Fukuda) 5,416,854 May 16, 1995
(filed July 30, 1991)
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