United States Patents of Arch C. Luther
(all assigned to RCA except last two)
US Patent Issue
Item No. Description No. Date
1 Frequency Synchronizing Systems 2,764,686 09/25/56
2 Voltage Supply System 2,786,150 03/19/57
3 Deflection Circuit 2,806,176 09/10/57
4 Color Bar Signal Generator 2,824,225 02/18/58
5 Television Special Effects Circuits 2,825,757 03/04/58
6 Color Television Monitoring System 2,828,355 03/25/58
7 Switching Apparatus 2,829,198 04/01/58
8 Wave Generating Systems 2,835,804 05/20/58
9 Shading Voltage Generators 2,845,486 07/29/58
10 Monostable Multivibrator 2,857,512 10/21/58
11 Wave Generating System (Sync MV) 2,857,514 10/21/58
12 Stabilized Cathode-coupled Multivibrator 2,858,427 10/28/58
13 Feedback Clamping Circuit Arrangements 2,863,943 12/09/58
14 Stabilized Clipper & Clamp Circuits 2,875,332 02/24/59
15 Color Television Test Apparatus 2,877,291 03/10/59
16 Composite Color Signal Transmission Systems 2,877,296 03/10/59
17 Phase Generating Systems 2,879,441 03/24/59
18 Television Transmission System 2,887,575 05/19/59
19 Television Control System 2,890,276 06/09/59
20 Multivibrator with Cathode Stablized by a Capacitor 2,891,148 06/16/59
21 Image Signal Correction Apparatus (gamma) 2,892,025 06/23/59
22 Aperture Correction Circuits 2,913,540 11/17/59
23 Protection System for Cathode Ray Tubes 2,913,621 11/17/59
24 Color Television Matrix Amplifier 2,924,648 02/09/60
25 Kinescope Background Control System 2,965,705 12/20/60
26 Servo System (Pixlock-Vertical) 3,141,065 07/14/64
27 Servo System (Pixlock-Horizontal) 3,542,950 11/24/70
28 Video Tape Reproducer System (Auto standards) 3,586,769 06/22/71
29 Web Handling Apparatus (TCR-100 Transport) 3,654,400 04/04/72
30 Signal Processor using CCDs 4,074,307 02/14/78
31 AM Transmitter with Offset Voltage 4,122,415 10/24/78
32 Disc Eccentricity Compensating System 4,138,741 02/06/79
33 Walking Cane with Sensors (with A. M. Husain) 6,011,481 01/04/00
34 Digital Audio Recording with Coordinated Handwritten Notes (with A. M. Husain) 6,027,026 02/22/00
A product based on this patent is described at www.Write-n-Record.com

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