McLaughlin; Donald W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for McLaughlin; Donald W..The latest application filed is for "dual rail time and control unit for a t-s-t-digital switching system".
- McLaughlin; Donald W. - Naperville IL
- McLaughlin; Donald W. - Bolingbrook IL
| Patent | Date |
|---|---|
| Dual rail time and control unit for a T-S-T-digital switching system Grant 4,392,223 - Simmons , et al. July 5, 1 | 1983-07-05 |
| Clock check circuit Grant 4,308,472 - McLaughlin December 29, 1 | 1981-12-29 |
| Multiport conference circuit with multi-frame summing and voice level coding Grant 4,274,155 - Funderburk , et al. June 16, 1 | 1981-06-16 |
| Multiport conference circuit with multi-frame summing Grant 4,257,120 - Funderburk , et al. March 17, 1 | 1981-03-17 |
| Multiport conference circuit with voice level coding Grant 4,254,497 - Funderburk , et al. March 3, 1 | 1981-03-03 |
| Private automatic branch exchange telephone system with two data sources sharing a multiplexed data bus Grant 4,201,893 - McLaughlin May 6, 1 | 1980-05-06 |
| Digital trunk supervisory decoder multiplexor for ground start or E&M signalling on a common T1 span Grant 4,191,857 - McLaughlin , et al. March 4, 1 | 1980-03-04 |
| Multiport conference circuit Grant 4,175,215 - McLaughlin , et al. November 20, 1 | 1979-11-20 |
| 3-Port conference circuit for use in private automatic branch exchange Grant 4,126,766 - McLaughlin , et al. November 21, 1 | 1978-11-21 |
| Conference circuit for pulse coded modulated telephony Grant 4,054,755 - Lee , et al. October 18, 1 | 1977-10-18 |
| Conference circuit for pulse coded modulated telephony Grant 4,022,981 - McLaughlin , et al. May 10, 1 | 1977-05-10 |
| Switching and transmission technique using a method and arrangement of channel allocation for providing conferencing Grant 4,007,338 - McLaughlin February 8, 1 | 1977-02-08 |
| Tone injection circuit Grant 3,931,474 - McLaughlin , et al. January 6, 1 | 1976-01-06 |
| Ring Trip And Dial Pulse Detection Circuit Grant 3,838,223 - Lee , et al. September 24, 1 | 1974-09-24 |
| Junctor Disconnect Detection Circuit Grant 3,838,228 - Lee , et al. September 24, 1 | 1974-09-24 |
| Pulse Detector Grant 3,808,373 - McLaughlin April 30, 1 | 1974-04-30 |
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