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[ T ]
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Telex Communications
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THAT Corporation
45 Sumner Street
Milford, MA 01757-1656 USA
Telephone: +1 508 478-9200
Fax: +1 508 478-0990
E-mail: info@thatcorp.com
Web:
http://www.thatcorp.com/
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“THAT Corporation is a provider of high-performance audio integrated circuits to manufacturers of professional and industrial products.”
“Various divisions of dbx, Inc. were individually sold during the dissolution of Carillon Technology Incorporated. OEM products were bought by THAT Corporation, founded by dbx's V.P. of Engineering, and members of his staff.”
THAT Corp: A Brief History of VCA Development (Ed. [PDF] Quoted from their web site.)
U.S. Patent No. 5,663,684, 09/02/97: Wafer-stage adjustment for compensating for mismatches in temperature dependent IC components Herbert, Gary K. (assignee THAT Corp.); [ abstract ]
[ DjVu 288 KB ]
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Trimm Radio Manufacturing Co.
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*U.S. Patent No. 1,748,407
, 02/25/1930 (app. 07/18/1927) Loud-Speaker Unit (class: 335/231; 335/274; 381/417) Bottorff, Charles A. (assignee: Trimm Radio Manufacturing Co.) [abstract] [DjVu172KB]
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U.R.E.I.
United Recording Electronics Industries
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Patents:
*U.S. Patent No. 3,732,370
, 02/24/1971: Equalizer Using a Comb of Spectral Frequencies as the Test Signal Sacks, Jack Assignee: United Recording Electronic Industries (U.R.E.I.)
[ abstract ] [ DjVu 207 KB ]
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The United States Gramophone Company
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Washington, D.C.
Patents:
*U.S. Patent No. 534,543
, 02/19/1895 (app. 03/30/1892, no model, serial 427,060) GRAMOPHONE. (class: 369/153; 181/21; 369/223; 369/288) Berliner, Emile of Washington, D.C. (assignee: United States Gramophone Company of Washington, D.C.) [DjVu350KB]
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The United States Phonograph Company
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New Jersey
Patents:
*U.S. Patent No. 523,556
, 07/24/1894 (app. 11/30/1892, no model, serial 453,576) COIN-OPERATED MECHANISM FOR PHONOGRAPHS. (class: 194/246; 369/223) Tewksbury, George E. of Topeka, KS (assignee: The United States Phonograph Company of NJ by Mesne Assignments) [DjVu237KB]
*U.S. Patent No. 570,378
, 10/27/1896 (app. 12/20/1895, no model, serial 572,744) SPRING-MOTOR FOR PHONOGRAPHS, &c. (class: 185/37; 185/40L; 188/187) Capps, Frank L. of Newark NJ (assignee: The United States Phonograph Company of Newark, NJ) [DjVu198KB]
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VCA Associates
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Valley Audio, Inc.
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THAT Corp: A Brief History of VCA Development
Alumni:
Todrank, Bob
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Valley People, Inc.
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Alumni:
Todrank, Bob
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Victor Talking Machine Company
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In 1900 Eldridge R. Johnson founded the Consolidated Talking Machine Company that became the Victor Talking Machine Company in 1901. [edisonng.org]
*U.S. Patent No. 1,787,946
, 01/06/1931 (app. 05/14/1925) MEANS FOR CONVERTING ELECTRICAL VIBRATIONS INTO SOUND WAVES (class: 381/152; 181/163; 381/166; 381/186; 381/337) LaRue, William D. (assignee: Victor Talking Machine Company) [abstract] [DjVu272KB]
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Westinghouse Electric
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*U.S. Patent No. 1,693,401
, 11/27/1928 Telephone Circuits and apparatus Nyman, Alexander and Conrad, Frank (assignee Westinghouse Electric and Manufacturing Company) [abstract] [DjVu77KB]
*U.S. Patent No. 2,821,639
, 01/28/1958 (app. 10/28/1954, serial 465,322) TRANSISTOR SWITCHING CIRCUITS (class: 327/423; 318/294; 327/484; 327/576; 327/588; 330/263; 331/113A; 361/245; 363/63) Bright, Richard L. of Hempfield Township, PA and Royer, George H. of Pittsburgh, PA (assignee: Westinghouse Electric Corporation of East Pittsburgh, PA) [DjVu119KB] [Comments]
*U.S. Patent No. 3,585,517
, 06/15/1971 (app. 05/01/1968, serial 725,852) HIGH-EFFICIENCY POWER AMPLIFIER (class: 330/10; 330/117; 330/151; 330/297; 332/110) Herbert, Roger B. of Williamsville, NY (assignee: Westinghouse Electric Corporation of Pittsburgh, PA) [DjVu106KB] [Comments]
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Wilms, Hermann
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Patents:
*U.S. Patent No. 3,729,596
, 04/24/1973 (app: 04/24/1971 - serial: 137,817) ELECTRODYNAMIC SOUND PICKUP OR SOUND-TRACK CUTTING DEVICE (class: 369/139 - international: H04r 9/16) Toth, Miklos of Lubeck, Germany (assignee: Wilms, Hermann of Lubeck, Germany) [DjVu82KB]
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Wired Radio, Inc.
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New York, NY
*U.S. Patent No. 1,931,235
, 10/17/1933 Sound Reproducing System Nicolson, Alexander McLean (assignee Wired Radio, Inc.) [abstract] [DjVu113KB]
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Z-Systems Audio Engineering
Z-Systems Audio Laboratories
4641-F N.W. 6th Street
Gainesville, Florida 32609
Phone: (352) 371-0990
Fax: (352) 371-0093
E-mail: z-sys@z-sys.com
Web: http://www.z-sys.com
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Z-Systems, Inc. U.S.A. Manufacturer of professional and home digital signal processing equipment and digital routers.
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