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United States Patents of Arch C. Luther
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(all assigned to RCA except last two)
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| 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 | |||