[ P ] [ Q ] [ R ] [ S ]

[ P ] top

Peavey Electronics Corporation
711 "A" Street
P. O. Box 2898
Meridian, MS 39302-2898

web: http://www.peavey.com

Founded in 1965 by Hartley D. Peavey, Chairman and CEO, who remains sole owner of the company.

International manufacturer of approximately 2000 products, including public address systems, loudspeakers, power amplifiers, keyboard and MIDI, solid-body electric guitars, acoustic guitars, microphones, drums and other related commercial sound equipment.

Utility Patents:
U.S. Patent No. 5,509,080 , 04/16/1996 (app. 03/14/1994, serial 208,898) BASS CLIPPING CIRCUIT (class: 381/98; 333/28T, international: H03G 005/00; H04S 003/00) Roberts, John H. of Hickory, MS (assignee: Peavey Electronics Corporation of Meridian, MS) [Pt-Txt18KB] [DjVu72KB]

U.S. Patent No. 5,524,055, 06/04/1996 (app. 01/18/1994, serial 182,493) SOLID STATE CIRCUIT FOR EMULATING TUBE COMPRESSION EFFECT (class: 381/61, international: H03G 003/08) Sondermeyer, Jack C. of Meridian, MS (assignee: Peavey Electronics Corporation of Meridian, MS) [Pt-Txt28KB] [DjVu153KB]

U.S. Patent No. 5,586,194, 12/17/1996 (app. 03/31/1994, serial 220,356) AUGMENTATION AMPLIFIER (class: 381/120, international H03F 021/00) Risch, Jon M. of Toomsuba, MS (assignee: Peavey Electronics Corporation of Meridian, MS) [Pt-Txt33KB] [DjVu125KB]

U.S. Patent No. 5,606,142, 02/25/1997 (app. 06/30/1994, serial 269,112) SHELL RESONANT MEMBRANOPHONE (class: 84/411R, international G10D 013/02) Volpp, Steven of Meridian, MS (assignee: Peavey Electronics Corporation of Meridian, MS) [Pt-Txt46KB] [DjVu231KB]

U.S. Patent No. 5,619,578, 04/08/1997 (app. 09/02/1994, serial 299,104) MULTI-STAGE SOLID STATE AMPLIFIER THAT EMULATES TUBE DISTORTION (class: 381/61; 381/62, international: H03G 003/00) Sondermeyer, Jack C. of Vienna, MS and Brown, Sr., James W. of Meridian, MS (assignee: Peavey Electronics Corporation of Meridian, MS) [Pt-Txt40KB] [DjVu143KB]

U.S. Patent No. 5,647,004, 07/08/1997 (app. 01/10/1994, serial 179,546) MULTI-STAGE SOLID STATE AMPLIFIER THAT EMULATES TUBE DISTORTION (class: 381/61; 381/62, international: H03G 003/00) Sondermeyer; Jack C. of Meridian, MS and Brown, Sr.; James W. of Meridian, MS (assignee: Peavey Electronics Corporation of Meridian, MS) [Pt-Txt33KB] [DjVu125KB]

U.S. Patent No. 5,652,800, 07/29/1997 (app. 11/02/1995, serial 556,871) AUTOMATIC MIXER PRIORITY CIRCUIT (class: 381/119; 381/94.1; 381/122, international: H04B 001/00) Roberts; John H. of Hickory, MS (assignee: Peavey Electronics Corporation of Meridian, MS) [Pt-Txt20KB] [DjVu101KB]

U.S. Patent No. 5,668,499, 09/16/1997 (app. 01/16/1996, serial 586,596) TUBE TYPE POWER AMPLIFIER WITH DISTORTION CONTROL (class: 330/118; 330/136; 330/145; 330/149, international: H03F 003/28; H23G 003/22) Albert, James Robert of Meridian, MS and Sondermeyer; Jack C. of Meridian, MS (assignee: Peavey Electronics Corporation of Meridian, MS) [Pt-Txt20KB] [DjVu91KB]

U.S. Patent No. 5,675,656, 10/07/1997 (app. 07/15/1996, serial 668,501) POWER AMPLIFIER WITH CLIPPING LEVEL CONTROL (class: 381/61; 84/737; 84/738; 84/740; 381/63; 381/100, international: H03G 003/00) Sondermeyer, Jack C. of Meridian, MS and Brown, Sr., James W. of Meridian, MS (assignee: Peavey Electronics Corporation of Meridian, MS) [Pt-Txt50KB] [DjVu266KB]

U.S. Patent No. 5,737,428, 04/07/1998 (app. 08/18/1995, serial 516,776) CIRCUIT FOR PROVIDING VISUAL INDICATION OF FEEDBACK (class: 381/58; 381/98; 381/103, international: H04R 029/00) Roberts; John H. of Hickory, MS (assignee: Peavey Electronics Corporation of Meridian, MS) [Pt-Txt32KB] [DjVu*85KB]

U.S. Patent No. 5,796,305, 08/18/1998 (app. 06/14/1996, serial 663,691) AMPLIFIER ARRANGEMENTS WITH HIGH DAMPING FACTOR (class: 330/105; 330/109; 381/121, international: H03F 001/34) Sondermeyer; Jack C. of Meridian, MS (assignee: Peavey Electronics Corporation of Meridian, MS) [Pt-Txt33KB] [DjVu*114KB]

U.S. Patent No, 6,059,069, 05/09/2000 (app. 08/25/1999 serial 382,817) LOUDSPEAKER WAVEGUIDE DESIGN (class: 181/152; 181/148; 181/157; 181/159; 181/175; 181/177; 181/182; 181/187; 181/192; 181/195; 381/337; 381/339; 381/340, international: H05K 005/00) Hughes, Charles Emory, II of Meridian, MS (assignee: Peavey Electronics Corporation of Meridian, MS) [Pt-Txt25KB] [DjVu*111KB]

U.S. Patent No. 6,064,745, 05/16/2000 (app. 06/04/1998, serial 089,938) COMPRESSION DRIVER PHASE PLUG (class: 381/343; 181/152; 181/159; 381/340, international: H04R 025/00) Avera, Donald Keith of Toomsuba, MS (assignee: Peavey Electronics Corporation of Meridian, MI) [Pt-Txt33KB] [DjVu*121KB]

U.S. Patent No. 6,101,261, 08/08/2000 (app. 06/17/1998, serial 098,438) VARIABLE TILT LOUD SPEAKER ENCLOSURE (class: 381/386; 181/199; 381/86; 381/387, international: H04R 025/00) Brown, James W., Sr. of Meridian, MS (assignee: Peavey Electronics Corporation of Meridian, MS) [Pt-Txt30KB] [DjVu*78KB]

U.S. Patent No. 6,239,655, 05/29/2001 (app. 08/02/1999, serial 365,019) MICROPHONE AMPLIFIER WITH DIGITAL GAIN CONTROL (class: 330/86; 330/282; 381/121, international: H03F 001/36; H03F 021/00) Orozov, Borislav Lubenov of Meridian, MS and Caldwell, Dennis Lloyd of Meridian, MS and Hand, Larry Eugene of Meridian, MS and Stuckman, Thomas Richard of Meridian, MS (assignee: Peavey Electronics Corporation of Meridian, MS) [Pt-Txt30KB] [DjVu*73KB]

Phonograph Company
Orange, New Jersey

*U.S. Patent No. 393,640 , 11/27/1888 (app. 06/07/1888, no model, serial 276,393) PHONOGRAPH. (class: 369/223; 369/256) Gilliland, Ezra T. (assignee: Phonograph Company, Orange, New Jersey) [DjVu144KB]

Pro Sound News

Publication co-founded by Paul Gallo in 1978.

Production Intercom, Inc.

P.O. Box 3247
Barrington, IL 60011-3247
Shipping: 4 Hillview Drive - Unit A
Barrington, IL 60010
Phone: 800-562-5872 - USA, Alaska, Hawaii, Puerto Rico and Canada
International: 847-381-5350
Fax: 847-381-4360
Email: info@beltpack.com
Web: http://www.beltpack.com/

U.S.A. manufacturer of headset or theatrical intercom systems.

Protech Audio Corporation

1 Flowerfield - Suite 24
St. James, NY 11780
Phone: 631-584-5855
Fax: 631-584-5904
Email: info@protechaudio.com
Web:
http://www.protechaudio.com/
 

U.S.A. manufacturer of equipment for professional audio systems.

Protech Audio was established in 1979 in Saint James, New York. Over the past 20 years, Protech equipment has been installed in over 20,000 projects worldwide, from the National Conference Center in Bangkok, Thailand to corporate boardrooms in Germany.  Protech products provide quality and reliability. (Ed: from Protech web site)

[ Q ] top

QSC Audio Products, Inc.

Incorporated 1975
(out of the Quilter Sound Co.)

U.S.A. manufacturer of audio amplifiers, signal processing equipment and loudspeakers.

1675 MacArthur Blvd.
Costa Mesa, CA 92626
Phone: (800) 854-4079
Fax: (714) 754-6174
Email: info@qscaudio.com
http://www.qscaudio.com/

Resources:
Short corporate history from QSC web site [Acrobat 59KB]

Utility Patents:
U.S. Patent No. 4,321,554 , 03/23/1982 (app. 01/14/1980, serial 111,687) TIME-DELAYED, VARIABLE OUTPUT CURRENT LIMITING MEANS FOR POWER AMPLIFIERS (class: 330/298; 330/297, international: H03F 003/04) Quilter, Patrick H. of Laguna Beach, CA (assignee: QSC Audio Products, Inc. of Costa Mesa, CA) [Pt-Txt50KB] [DjVu*106KB]

U.S. Patent No. 5,767,744, 06/16/1998 (app. 11/21/1996, serial 753,185) LIGHTWEIGHT FIXED FREQUENCY DISCONTINUOUS RESONANT POWER SUPPLY FOR AUDIO AMPLIFIERS (class: 330/297; 330/289; 330/298; 363/24, international: H03F 001/30) Irwin, Gordon L. of Bothell, WA and Quilter, Patrick H. of Laguna Beach, CA (assignee: QSC Audio Products, Inc. of Costa Mesa, CA) [Pt-Txt81KB] [DjVu*285KB]

U.S. Patent No. 6,023,193, 02/08/2000 (app.05/01/1998, serial 071,307) HIGH POWER BRIDGE AMPLIFIER (class: 330/255; 330/146, international: H03F 003/45) Ierymenko, Paul F. of Foothill Ranch, CA (assignee: QSC Audio Products, Inc. of Costa Mesa, CA) [Pt-Txt81KB] [DjVu*195KB]

Design Patents:
U.S. Patent No. D420,681 , 02/15/2000 (app. 04/13/1999, serial 103,362) FACE PLATE FOR A POWER AMPLIFIER (class: D14/257; D14/188, international: 1403/) Teulie, Doug of Aliso Viejo, CA (assignee: QSC Audio Products, Inc. of Costa Mesa, CA) [Pt-Txt6KB] [DjVu*20KB]

U.S. Patent No. D422,598, 04/11/2000 (app. 04/13/1999, serial 103,361) PAIR OF HANDLES FOR A POWER AMPLIFIER (class: D14/265; D14/217, international: 1499/) Teulie, Doug of Aliso Viejo, CA (assignee: QSC Audio Products, Inc. of Costa Mesa, CA) [Pt-Txt5KB] [DjVu*18KB]

U.S. Patent No. D424,067, 05/02/2000 (app. 04/23/1999, serial 103,876) PAIR OF HANDLES FOR A POWER AMPLIFIER (class: D14/265; D14/188, international: 1499/) Teulie, Doug of Aliso Viejo, CA (assignee: QSC Audio, Inc. of Costa Mesa, CA) [Pt-Txt5KB] [DjVu*27KB]

Quantegy Professional Media

Manufacturer of magnetic recording tape.

Quatron Inc.

A Maryland firm, shone brightly for a few years making the (now highly desirable) Model 48 automatic 8-track changer. Believed to be out of business.
Morton, David: A History of The Eight Track Tape

Quilter Sound Company

Established in 1968 by Pat Quilter. Incorporated in 1975 as QSC Audio Products, Inc.

Products:
“Quilter Sound Thing, the Duck Amp and some OEM projects including the first AC-powered PigNose amp.”

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RDL
Radio Design Labs



P. O. Box 1286
Carpinteria, CA. USA 93014
Phone: (800) 281-2683
(805) 684-5415
Fax: (800) 289-7338
(805) 684-9316
Email: sales@rdlnet.com
Web: http://www.rdlnet.com/

U.S.A. Manufacturer of professional audio, video and control modules and equipment.

RG Dynamics, Inc.

U.S. Patent No. 4,597,100, 06/24/1986 Ultra high resolution loudspeaker system Grodinsky; Robert M. and Cornwell; David G. (assignee RG Dynamics, Inc.) [abstract] [DjVu149KB]

RPG Diffusor Systems

U.S.A. manufacturer of acoustic treatment materials and systems.

Radio Corporation of America

*U.S. Patent No. 1,988,250 , 01/15/1935 (app. 02/17/1934) LOUD SPEAKER AND METHOD OF PROPAGATING SOUND (class: 381/184; 181/147; 181/163; 381/89) Olson, Harry F. and Collingswood, N. J. (assignee: Radio Corporation of America) [abstract] [DjVu89KB]

*U.S. Patent No. 2,084,160 , 06/15/1937 Filter System for Loudspeakers Minton, John Preston and Ringel, Abraham S. (assignee Radio Corporation of America) [abstract] [DjVu112KB]

*U.S. Patent No. 2,113,393 , 04/05/1938 Audio Frequency Amplifier Bierwirth, Rudalph A. (assignee Radio Corporation of America) [abstract] [DjVu88KB]

*U.S. Patent No. 2,007,748 , 07/09/1935 Acoustic Device Olson, Harry F. (assignee Radio Corporation of America) [abstract] [DjVu182KB]

*U.S. Patent No. 2,182,328 , 12/05/1939 Band Width and Tone Control Circuit Weinberger, Juilus (assignee Radio Corporation of America) [abstract] [DjVu103KB]

*U.S. Patent No. 2,390,847 , 12/11/1945 (app. 08/13/1941) SIGNAL TRANSLATING APPARATUS (Underwater Microphone) (class: 181/142; 333/32; 367/172; 367/174) Olson, Harry F. (assignee: Radio Corporation of America) [abstract] [DjVu116KB]

Rauland-Borg Corporation

U.S. Patent No. 4,088,835, 05/09/1975 Comprehensive feedback elimination system employing notch filter; Thurmond, George R and Heinz, Harro K; Assignee: Rauland-Borg Corporation [ abstract ] [ DjVu 216 KB ]

Renkus-Heinz, Inc.

19201 Cook Street
Foothill Ranch, CA 92610-3501
Phone: (949) 588-9997
Fax: (949) 588-9514
Email: sales@renkus-heinz.com
Web: http://www.renkus-heinz.com

U.S.A. manufacturer of loudspeakers, amplifiers and signal processing equipment.

Founded: April 1, 1979 by Harro Heinz with Algis Renkus.

Patents:
U.S. Patent No. 4,336,425 , 06/22/1982 (app. 05/06/1980, serial 147,180) HIGH FREQUENCY COMPRESSION DRIVER AND METHOD OF MANUFACTURE THEREOF (class: 381/403; 29/594, international: H04R 009/02; H04R 009/04; H04R 009/06; H04R 031/00) Renkus, Jonas A. of Santa Ana, CA (assignee:  Renkus-Heinz, Inc. of Irvine, CA) [PtTxt44KB] [DjVu*156KB]

U.S. Patent No. 4,583,245 , 04/15/1986 (app. 06/14/1984, serial 620,512) SPEAKER SYSTEM PROTECTION CIRCUIT (class: 381/59; 381/96; 381/100, international: H04R 029/00) Gelow, William J. of Placentia, CA and Murphy, James of San Rafael, CA (assignee: Renkus-Heinz, Inc. of Irvine, CA) [PtTxt60KB] [DjVu*186KB]

U.S. Patent No. 4,887,298, 12/12/1989 (app. 06/15/1988, serial 207,064) ELECTRONIC CIRCUIT FOR SENSING DISCONNECT OR FAILURE OF A POWER OUTPUT SENSE LINE IN AN AUDIO POWER SYSTEM (class: 381/55; 330/207P; 330/298; 381/59; 381/96, international: H03G 011/00) Haigler, Robert M. of Laguna Beach, CA (assignee: Renkus-Heinz of Irvine, CA) [PtTxt74KB] [DjVu*154KB]

U.S. Patent No. 5,750,943, 05/12/1998 (app. 10/02/1996, serial 720,623) SPEAKER ARRAY WITH IMPROVED PHASE CHARACTERISTICS (class: 181/152; 181/192, international: H05K 005/00) Heinz, Ralph D. of Corona, CA (assignee:  Renkus-Heinz, Inc. of Irvine, CA) [PtTxt30KB] [DjVu*158KB]

Roland Corporation

Alumni:
Todrank, Bob
 

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STK Professional Audio

Kimpo City, Korea
http://www.stkpro.com/

Korean manufacturer of professional audio equipment.
S. Kim, President

Resources:

Locus of STK Professional Audio - Company web site.

S.I.A.P.
Systems for Improved Acoustic Performance

Uden, The Netherlands

Shure Incorporated

U.S.A manufacturer of microphones, phonograph cartridges, mixers, amplifiers and signal processing equipment. Founded: Sidney N. Shure, Chicago, IL 1925

Sonic Services, Inc.

Founded: Richard W. Crampton, Louisville, KY.

Alumni:
Richard W. Crampton
Henry Spraggens
Emory E. Straus
Gary G. Grand Pre

Stiernberg Consulting

15468 La Maida Street
Sherman Oaks, CA 91403
Phone: (818) 784-8618
Fax:
Email: john@stiernberg.com
Web:
http://www.stiernberg.com/

“STIERNBERG CONSULTING was established in 1993 to provide strategic planning and business development services on a contract basis.”

“We provide business development services with an emphasis on strategic planning and market development. While many consultants focus on the product or promotional aspects of a business enterprise, we take a comprehensive view. Stiernberg Consulting offers a special blend of industry knowledge, experience, and the ability to work comfortably with financial and technical executives as well as marketing and sales people”. (Ed. From the company’s web site.)

Resources:
Books and Papers generated by the company. [http://www.stiernberg.com/pub.html]

Syn-Aud-Con
Synergetic Audio Concepts

Founders: Don and Carolyn Davis.

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