(12) United States Patent US006311264B1 (10) Patent N0.: US 6,311,264 B1 Boutaud et al. (45) Date of Patent: *Oct. 30, 2001 (54) DIGITAL SIGNAL PROCES
U.S. Patent Oct. 30, 2001 Sheet 8 0f 18 US 6,311,264 B1 6%‘ ROM H ‘ / 619 607.1 G 21 ALU MULT f53 ‘ A VIDEO ' I I ‘ ' DISPLAY - CONVERTER g
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U.S. Patent 0111. 30, 2001 Sheet 10 of 18 US 6,311,264 B1 771 779\ % MODEM #C VOCODER 1 E """""""" "&quo
U.S. Patent 0a. 30, 2001 Sheet 12 of 18 US 6,311,264 B1 CPU READ IACK INPUT MAIN . REGISTER A CPU WRITE’? “ ‘ RETE ~ 1/ = Q D l/ 855/ OE COUNTERPART —
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U.S. Patent 061. 30, 2001 Sheet 16 0f 18 US 6,311,264 B1 Bcnd INSTRUCTION ACC=O AGG<0 OVERFLOW CARRY MANY SHORT ‘NSTRUCHONS STATUS 1 | | | l 1
US 6,311,264 B1 Page 2 US. PATENT DOCUMENTS 4,713,748 12/1987 Magar et a1. ... .. 364/200 4,772,888 9/1988 Kimura ...
U.S. Patent 0a. 30, 2001 Sheet 18 of 18 US 6,311,264 B1 IO5I TART 63 Q \ I: A :> LOAD CKT.BDS. 1077 SUPPLY I / LOAD KEYLESS REORIENT 21> DEVICES
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U.S. Patent 0111. 30, 2001 Sheet 3 of 18 US 6,311,264 B1 305 \. 301 A ' O f 11 DSP ~5- : MOTOR 3 5-’ CPU T - INDUSTRIAL I_1 F ' 500 PROCESS
U.S. Patent 0a. 30, 2001 Sheet 4 0f 18 US 6,311,264 B1 401 403 405 406 \ / / / REFERENCE r(IT) DIGITAL u(n)_ ZOH HIT)~ (DC SERVO) y(il)_ DISK‘ INPUT
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