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Your search returned 82 patents.
( 370/212 in Current US Classification ) |
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| Patent ID | Title | Date Filed |
| 4677608 | Method of transferring an additional information channel across a transmission medium
| May 18, 1984 |
| 4577308 | Multiplexed interconnection of packet switching node packages
| April 6, 1984 |
| 4402073 | Speech and data communication network
| March 10, 1981 |
| 4345323 | Pulse duration digital multiplexing system
| January 7, 1980 |
| 4319359 | Radio transmitter energy recovery system
| May 8, 1980 |
| 4234949 | Multiplexer and time duration measuring circuit
| April 10, 1979 |
| 4217572 | Arrangements for transmitting electrical signals between two devices which are connected by contacts
| June 30, 1978 |
| 4201958 | Delta modulation which partitions input signal into variable-time segments that are iteratively encoded
| December 4, 1978 |
| 4176250 | Time division multiplexing system for an automobile
| June 30, 1978 |
| 4175214 | Apparatus and method for a pulse regeneration system
| August 7, 1978 |
| 4171467 | Signal multiplexing circuit
| July 20, 1978 |
| 4159448 | Communication systems
| February 8, 1977 |
| 4155115 | Process control system with analog output control circuit
| December 30, 1977 |
| 4129751 | PCM data throttle
| August 30, 1977 |
| 4087643 | Time division multiplexed PABX communication switching system
| June 13, 1977 |
| 4078153 | Clock signal and auxiliary signal transmission system
| September 30, 1976 |
| 4061976 | Receivers for pulses of different widths
| September 7, 1976 |
| 4061975 | Receiver for pulses of different widths
| September 7, 1976 |
| 4051539 | Differential duration demultiplexing method and system
| April 30, 1976 |
| 3985969 | Simulated communications system
| August 14, 1975 |
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