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During this 35+ year career, I was fortunate to have many inventive and intelligent supervisors and co-workers who encouraged me to exercise my creative inclinations. This resulted in the following US Patents, on all of which I am either the sole or a co-inventor.
The following table lists these patents as of this date. Click on the patent number to be taken to the corresponding web page at the US Patent and Trademark Office:
| Patent # | Issued | Title | Co-Inventors |
|---|---|---|---|
| 6,628,762 | 2003-09-30 | Method for the transmission of a high-bit-rate digital signal. | Dr. T. Ahrndt |
| 6,144,734 | 2000-11-07 | Low-pass filters for splitterless POTS and data transmission. | - |
| 4,771,463 | 1988-09-13 | Digital scrambling without error multiplication. | - |
| 4,719,643 | 1988-01-12 | Pseudo random framing generator circuit. | - |
| 4,590,601 | 1986-05-20 | Pseudo random framing detector circuit. | - |
| 4,590,600 | 1986-05-20 | Dynamic digital equalizer. | P. U. Lind |
| 4,584,696 | 1986-04-22 | Transmission response measurement | P. U. Lind |
| 4,486,627 | 1984-12-04 | Cable load status detector | S. J. Chmura |
| 4,272,721 | 1981-06-09 | Analog-to-digital converter alignment circuit | - |
| 4,041,248 | 1977-08-09 | Tone detection synchronizer. | L. A. Tarr |
| 4,018,991 | 1977-04-19 | Multifrequency signal parity detector. | - |
| 3,946,164 | 1976-03-23 | Precise tone signal generator | - |
| 3,881,062 | 1975-04-29 | Totalizer circuit for coin operated telephones | R. V. Burns |
| 3,875,526 | 1975-04-01 | Two-frequency alternate tone generator. | R. P. Dimmer |
| 3,823,273 | 1974-07-09 | Subscriber's telephone circuit. [an electronic voice Integrated Circuit] |
R. T. Cleary |
| 3,760,269 | 1973-09-18 | Multi-frequency tone detector. | L. A. Tarr |
| 3,582,565 | 1971-06-01 | Tome [sic] channels for multifrequency receivers. | R. V. Burns R. T. Cleary |