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(12) United States Patent (10) Patent No.: US 8,035,024 B2 Ludwig (45) Date of Patent: Oct

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(12) United States Patent (10) Patent No.: US 8,035,024 B2 Ludwig (45) Date of Patent: Oct USOO8035.024B2 (12) United States Patent (10) Patent No.: US 8,035,024 B2 Ludwig (45) Date of Patent: Oct. 11, 2011 (54) PHASE-STAGGERED MULTI-CHANNEL 3.651,242 A 3, 1972 Evans SIGNAL PANNING 3,730,046 A 5/1973 Spence 3,742,133. A 6/1973 O'Sullivan 3,805,091 A 4, 1974 Colin (76) Inventor: Lester F. Ludwig, Redwood Shores, CA 3,813,473 A 5/1974 Terymenko (US) 3,878,748 A 4/1975 Spence 3,956.959 A 5, 1976 Ebihara et al. (*) Notice: Subject to any disclaimer, the term of this 3,962,945 A 6/1976 Creager et al. patent is extended or adjusted under 35 4,075,921 A 2, 1978 Heet U.S.C. 154(b) by 1158 days 4,080,867 A 3/1978 Ratanangsu (Continued) (21) Appl. No.: 10/702,262 FOREIGN PATENT DOCUMENTS (22) Filed: Nov. 5, 2003 EP O 574 213 A1 12, 1993 (65) Prior Publication Data OTHER PUBLICATIONS US 2004/O163528A1 Aug. 26, 2004 William H. Hayt Jr. & Jack E. Kemmerly, "Engineering Circuit s Analysis” 268-70.* Related U.S. Application Data (Continued) (60) Continuation of application No. 09/812,400, filed on Mar 19, 2001, now Pat. No. 7,786,370, which is a Primary Examiner - Marlo Fletcher division of application No. 09/313,533, filed on May (74) Attorney, Agent, or Firm — Craig W. Schmoyer 15, 1999, now Pat. No. 6,610,917. (57) ABSTRACT (60) Provisional application No. 60/085,713, filed on May 15, 1998. This invention provides a signal processing and signal Syn thesis technique from a family of signal processing and signal (51) Int. Cl. synthesis techniques designed to readily interwork or be used GIOH 700 (2006.01) individually in creating new forms of rich musical timbres. (52) U.S. Cl. ................ 84/645. 84/622. 84/625. 84/659; Phase staggered multi-channel signal panning creates spatial s s s 84660 perturbation and chase effects for Subtle or dramatic applica (58) Field of Classification Search 84/600 tion, and may be swept with control signals from a low 84/609 610,615,622,625.634.645.649.650. frequency oscillator, transient envelope, or other source. 841653 659-660 666. 381 61.63 1728 Phase-staggering and modulation parameters may be recalled See application file for complete search history from stored program control or modulated in real-time by arbitrary control signals, including those derived from the (56) References Cited original input signal. The invention may be used individually or in conjunction with other signal processing and signal U.S. PATENT DOCUMENTS synthesis techniques in creating new forms of rich musical 1947,020 A 2/1934 Ranger timbres. 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Pourcereg Hincomineerical Power- Power Supplyles 102 Electronic laterfacs 12 12 123 Ekments outgoing control signals He- Control control Signal Signal O3 13 Routing Processing Atelakwe incoming control signals st Control Signal Es?iers 1288 128 Control cott: 14 Signal Sigma Extraction Synthesi SerisedExces Wibrating Eeefits II 124 25 - outgoing Audio Signals - Auck Autis Signal Signal 10s 115 routing Processing Antwe frcoming Excitation signals Audio Signal Eerients 106 116. 6 12 yideogts, outgoing video signals Wides Wide sect 17 Signal Signal H incoming video signals H Routing Processing o 29 129 Program Storage Audi Waled Signal Signal Synthesis Synthesis 13) Program Storage US 8,035,024 B2 Page 2 U.S. PATENT DOCUMENTS Biaxe Ragamaster, Box 15426, Stamford, CT. 06901-0426, USA. 4,117,413 A 9/1978 Moog Bicanic, Dane, ed. 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